Auto merge of #113893 - mdibaiee:type-name-spill-flag, r=compiler-errors

new unstable option: -Zwrite-long-types-to-disk

This option guards the logic of writing long type names in files and instead using short forms in error messages in rustc_middle/ty/error behind a flag. The main motivation for this change is to disable this behaviour when running ui tests.

This logic can be triggered by running tests in a directory that has a long enough path, e.g. /my/very-long-path/where/rust-codebase/exists/

This means ui tests can fail depending on how long the path to their file is.

Some ui tests actually rely on this behaviour for their assertions, so for those we enable the flag manually.

15 files changed, 25 insertions, 30 deletions

diff --git a/compiler/rustc_interface/src/tests.rs b/compiler/rustc_interface/src/tests.rs
index 12124f14a82..e3d66d18388 100644
--- a/compiler/rustc_interface/src/tests.rs
+++ b/compiler/rustc_interface/src/tests.rs
@@ -740,6 +740,7 @@ fn test_unstable_options_tracking_hash() {
     untracked!(unstable_options, true);
     untracked!(validate_mir, true);
     untracked!(verbose, true);
+    untracked!(write_long_types_to_disk, false);
     // tidy-alphabetical-end
 
     macro_rules! tracked {
diff --git a/compiler/rustc_middle/src/ty/error.rs b/compiler/rustc_middle/src/ty/error.rs
index c794c3faded..3fdbaf5e947 100644
--- a/compiler/rustc_middle/src/ty/error.rs
+++ b/compiler/rustc_middle/src/ty/error.rs
@@ -339,12 +339,17 @@ impl<'tcx> TyCtxt<'tcx> {
     }
 
     pub fn short_ty_string(self, ty: Ty<'tcx>) -> (String, Option<PathBuf>) {
-        let width = self.sess.diagnostic_width();
-        let length_limit = width.saturating_sub(30);
         let regular = FmtPrinter::new(self, hir::def::Namespace::TypeNS)
             .pretty_print_type(ty)
             .expect("could not write to `String`")
             .into_buffer();
+
+        if !self.sess.opts.unstable_opts.write_long_types_to_disk {
+            return (regular, None);
+        }
+
+        let width = self.sess.diagnostic_width();
+        let length_limit = width.saturating_sub(30);
         if regular.len() <= width {
             return (regular, None);
         }
diff --git a/compiler/rustc_session/src/options.rs b/compiler/rustc_session/src/options.rs
index ff433fdf16d..c19c2d1dc9e 100644
--- a/compiler/rustc_session/src/options.rs
+++ b/compiler/rustc_session/src/options.rs
@@ -1878,6 +1878,8 @@ written to standard error output)"),
         Requires `-Clto[=[fat,yes]]`"),
     wasi_exec_model: Option<WasiExecModel> = (None, parse_wasi_exec_model, [TRACKED],
         "whether to build a wasi command or reactor"),
+    write_long_types_to_disk: bool = (true, parse_bool, [UNTRACKED],
+        "whether long type names should be written to files instead of being printed in errors"),
     // tidy-alphabetical-end
 
     // If you add a new option, please update:
diff --git a/src/tools/compiletest/src/runtest.rs b/src/tools/compiletest/src/runtest.rs
index 7eeb987063f..ba068995d44 100644
--- a/src/tools/compiletest/src/runtest.rs
+++ b/src/tools/compiletest/src/runtest.rs
@@ -2330,6 +2330,7 @@ impl<'test> TestCx<'test> {
                 // Hide line numbers to reduce churn
                 rustc.arg("-Zui-testing");
                 rustc.arg("-Zdeduplicate-diagnostics=no");
+                rustc.arg("-Zwrite-long-types-to-disk=no");
                 // FIXME: use this for other modes too, for perf?
                 rustc.arg("-Cstrip=debuginfo");
             }
diff --git a/tests/ui/diagnostic-width/E0271.stderr b/tests/ui/diagnostic-width/E0271.stderr
index 52f415037d3..c1b8b32071c 100644
--- a/tests/ui/diagnostic-width/E0271.stderr
+++ b/tests/ui/diagnostic-width/E0271.stderr
@@ -15,8 +15,7 @@ note: expected this to be `Foo`
    |
 LL |     type Error = E;
    |                  ^
-   = note: required for the cast from `Box<Result<..., ...>>` to `Box<(dyn Future<Error = Foo> + 'static)>`
-   = note: the full name for the source type has been written to '$TEST_BUILD_DIR/diagnostic-width/E0271/E0271.long-type-hash.txt'
+   = note: required for the cast from `Box<Result<Result<(), Result<Result<(), Result<Result<(), Option<{integer}>>, ()>>, ()>>, ()>>` to `Box<(dyn Future<Error = Foo> + 'static)>`
 
 error: aborting due to previous error
 
diff --git a/tests/ui/diagnostic-width/long-E0308.rs b/tests/ui/diagnostic-width/long-E0308.rs
index f021f102933..0ae5e19ab2a 100644
--- a/tests/ui/diagnostic-width/long-E0308.rs
+++ b/tests/ui/diagnostic-width/long-E0308.rs
@@ -1,4 +1,4 @@
-// compile-flags: --diagnostic-width=60
+// compile-flags: --diagnostic-width=60 -Zwrite-long-types-to-disk=yes
 // normalize-stderr-test: "long-type-\d+" -> "long-type-hash"
 
 mod a {
diff --git a/tests/ui/error-codes/E0275.stderr b/tests/ui/error-codes/E0275.stderr
index 03c37d6f0e1..c702c3790a7 100644
--- a/tests/ui/error-codes/E0275.stderr
+++ b/tests/ui/error-codes/E0275.stderr
@@ -5,12 +5,11 @@ LL | impl<T> Foo for T where Bar<T>: Foo {}
    |                                 ^^^
    |
    = help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]` attribute to your crate (`E0275`)
-note: required for `Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<...>>>>>>>>>>>>>>>>>>>>>` to implement `Foo`
+note: required for `Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<Bar<T>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` to implement `Foo`
   --> $DIR/E0275.rs:6:9
    |
 LL | impl<T> Foo for T where Bar<T>: Foo {}
    |         ^^^     ^               --- unsatisfied trait bound introduced here
-   = note: the full type name has been written to '$TEST_BUILD_DIR/error-codes/E0275/E0275.long-type-hash.txt'
    = note: 126 redundant requirements hidden
    = note: required for `Bar<T>` to implement `Foo`
 
diff --git a/tests/ui/higher-ranked/trait-bounds/hang-on-deeply-nested-dyn.stderr b/tests/ui/higher-ranked/trait-bounds/hang-on-deeply-nested-dyn.stderr
index a9d649b8285..139c844d8a2 100644
--- a/tests/ui/higher-ranked/trait-bounds/hang-on-deeply-nested-dyn.stderr
+++ b/tests/ui/higher-ranked/trait-bounds/hang-on-deeply-nested-dyn.stderr
@@ -13,8 +13,7 @@ LL | | ) {
 LL |       f
    |       ^ expected `&dyn Fn(&dyn Fn(&dyn Fn(&...)))`, found `&dyn Fn(u32)`
    |
-   = note: expected reference `&dyn Fn(&dyn Fn(&dyn Fn(&dyn Fn(&dyn Fn(&dyn Fn(&dyn Fn(&dyn Fn(&dyn Fn(&dyn Fn(&dyn Fn(&...)))))))))))`
-           the full type name has been written to '$TEST_BUILD_DIR/higher-ranked/trait-bounds/hang-on-deeply-nested-dyn/hang-on-deeply-nested-dyn.long-type-hash.txt'
+   = note: expected reference `&dyn for<'a> Fn(&'a (dyn for<'a> Fn(&'a (dyn for<'a> Fn(&'a (dyn for<'a> Fn(&'a (dyn for<'a> Fn(&'a (dyn for<'a> Fn(&'a (dyn for<'a> Fn(&'a (dyn for<'a> Fn(&'a (dyn for<'a> Fn(&'a (dyn for<'a> Fn(&'a (dyn for<'a> Fn(&'a (dyn Fn(u32) + 'a)) + 'a)) + 'a)) + 'a)) + 'a)) + 'a)) + 'a)) + 'a)) + 'a)) + 'a)) + 'a))`
               found reference `&dyn Fn(u32)`
 
 error: aborting due to previous error
diff --git a/tests/ui/higher-ranked/trait-bounds/issue-30786.stderr b/tests/ui/higher-ranked/trait-bounds/issue-30786.stderr
index f32ba57200d..957082b6010 100644
--- a/tests/ui/higher-ranked/trait-bounds/issue-30786.stderr
+++ b/tests/ui/higher-ranked/trait-bounds/issue-30786.stderr
@@ -31,7 +31,6 @@ LL | pub struct Filter<S, F> {
 LL |     let count = filter.countx();
    |                        ^^^^^^ method cannot be called due to unsatisfied trait bounds
    |
-   = note: the full type name has been written to '$TEST_BUILD_DIR/higher-ranked/trait-bounds/issue-30786/issue-30786.long-type-hash.txt'
 note: the following trait bounds were not satisfied:
       `&'a mut &Filter<Map<Repeat, for<'a> fn(&'a u64) -> &'a u64 {identity::<u64>}>, [closure@$DIR/issue-30786.rs:131:30: 131:37]>: Stream`
       `&'a mut &mut Filter<Map<Repeat, for<'a> fn(&'a u64) -> &'a u64 {identity::<u64>}>, [closure@$DIR/issue-30786.rs:131:30: 131:37]>: Stream`
diff --git a/tests/ui/issues/issue-20413.stderr b/tests/ui/issues/issue-20413.stderr
index 8891a26784e..8793029dd22 100644
--- a/tests/ui/issues/issue-20413.stderr
+++ b/tests/ui/issues/issue-20413.stderr
@@ -14,12 +14,11 @@ LL | impl<T> Foo for T where NoData<T>: Foo {
    |                                    ^^^
    |
    = help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]` attribute to your crate (`issue_20413`)
-note: required for `NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<...>>>>>>>>>>>>>` to implement `Foo`
+note: required for `NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<NoData<T>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` to implement `Foo`
   --> $DIR/issue-20413.rs:9:9
    |
 LL | impl<T> Foo for T where NoData<T>: Foo {
    |         ^^^     ^                  --- unsatisfied trait bound introduced here
-   = note: the full type name has been written to '$TEST_BUILD_DIR/issues/issue-20413/issue-20413.long-type-hash.txt'
    = note: 126 redundant requirements hidden
    = note: required for `NoData<T>` to implement `Foo`
 
@@ -30,18 +29,16 @@ LL | impl<T> Bar for T where EvenLessData<T>: Baz {
    |                                          ^^^
    |
    = help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]` attribute to your crate (`issue_20413`)
-note: required for `EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<...>>>>>>>` to implement `Baz`
+note: required for `EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<T>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` to implement `Baz`
   --> $DIR/issue-20413.rs:35:9
    |
 LL | impl<T> Baz for T where AlmostNoData<T>: Bar {
    |         ^^^     ^                        --- unsatisfied trait bound introduced here
-   = note: the full type name has been written to '$TEST_BUILD_DIR/issues/issue-20413/issue-20413.long-type-hash.txt'
-note: required for `AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<...>>>>>>>` to implement `Bar`
+note: required for `AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<T>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` to implement `Bar`
   --> $DIR/issue-20413.rs:28:9
    |
 LL | impl<T> Bar for T where EvenLessData<T>: Baz {
    |         ^^^     ^                        --- unsatisfied trait bound introduced here
-   = note: the full type name has been written to '$TEST_BUILD_DIR/issues/issue-20413/issue-20413.long-type-hash.txt'
    = note: 125 redundant requirements hidden
    = note: required for `EvenLessData<T>` to implement `Baz`
 
@@ -52,18 +49,16 @@ LL | impl<T> Baz for T where AlmostNoData<T>: Bar {
    |                                          ^^^
    |
    = help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]` attribute to your crate (`issue_20413`)
-note: required for `AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<...>>>>>>>` to implement `Bar`
+note: required for `AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<T>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` to implement `Bar`
   --> $DIR/issue-20413.rs:28:9
    |
 LL | impl<T> Bar for T where EvenLessData<T>: Baz {
    |         ^^^     ^                        --- unsatisfied trait bound introduced here
-   = note: the full type name has been written to '$TEST_BUILD_DIR/issues/issue-20413/issue-20413.long-type-hash.txt'
-note: required for `EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<...>>>>>>>` to implement `Baz`
+note: required for `EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<EvenLessData<AlmostNoData<T>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` to implement `Baz`
   --> $DIR/issue-20413.rs:35:9
    |
 LL | impl<T> Baz for T where AlmostNoData<T>: Bar {
    |         ^^^     ^                        --- unsatisfied trait bound introduced here
-   = note: the full type name has been written to '$TEST_BUILD_DIR/issues/issue-20413/issue-20413.long-type-hash.txt'
    = note: 125 redundant requirements hidden
    = note: required for `AlmostNoData<T>` to implement `Bar`
 
diff --git a/tests/ui/issues/issue-23122-2.stderr b/tests/ui/issues/issue-23122-2.stderr
index 06e5b711a82..af77e4b1a41 100644
--- a/tests/ui/issues/issue-23122-2.stderr
+++ b/tests/ui/issues/issue-23122-2.stderr
@@ -5,14 +5,13 @@ LL |     type Next = <GetNext<T::Next> as Next>::Next;
    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]` attribute to your crate (`issue_23122_2`)
-note: required for `GetNext<<<<<<<... as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next>` to implement `Next`
+note: required for `GetNext<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<T as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next as Next>::Next>` to implement `Next`
   --> $DIR/issue-23122-2.rs:10:15
    |
 LL | impl<T: Next> Next for GetNext<T> {
    |      -        ^^^^     ^^^^^^^^^^
    |      |
    |      unsatisfied trait bound introduced here
-   = note: the full type name has been written to '$TEST_BUILD_DIR/issues/issue-23122-2/issue-23122-2.long-type-hash.txt'
 
 error: aborting due to previous error
 
diff --git a/tests/ui/methods/inherent-bound-in-probe.stderr b/tests/ui/methods/inherent-bound-in-probe.stderr
index ff03a7edb05..8d7cc462280 100644
--- a/tests/ui/methods/inherent-bound-in-probe.stderr
+++ b/tests/ui/methods/inherent-bound-in-probe.stderr
@@ -24,8 +24,7 @@ LL | where
 LL |     &'a T: IntoIterator<Item = &'a u8>,
    |                         ------------- unsatisfied trait bound introduced here
    = note: 126 redundant requirements hidden
-   = note: required for `&BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<...>>>>>` to implement `IntoIterator`
-   = note: the full type name has been written to '$TEST_BUILD_DIR/methods/inherent-bound-in-probe/inherent-bound-in-probe.long-type-hash.txt'
+   = note: required for `&BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<_>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>` to implement `IntoIterator`
 note: required by a bound in `Helper<'a, T>`
   --> $DIR/inherent-bound-in-probe.rs:25:25
    |
diff --git a/tests/ui/recursion/issue-83150.stderr b/tests/ui/recursion/issue-83150.stderr
index eae58771a41..543b7308472 100644
--- a/tests/ui/recursion/issue-83150.stderr
+++ b/tests/ui/recursion/issue-83150.stderr
@@ -14,8 +14,7 @@ error[E0275]: overflow evaluating the requirement `Map<&mut std::ops::Range<u8>,
    = help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]` attribute to your crate (`issue_83150`)
    = note: required for `&mut Map<&mut std::ops::Range<u8>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>` to implement `Iterator`
    = note: 65 redundant requirements hidden
-   = note: required for `&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<..., ...>, ...>, ...>, ...>, ...>, ...>, ...>` to implement `Iterator`
-   = note: the full type name has been written to '$TEST_BUILD_DIR/recursion/issue-83150/issue-83150.long-type-hash.txt'
+   = note: required for `&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut std::ops::Range<u8>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>, [closure@$DIR/issue-83150.rs:13:24: 13:27]>` to implement `Iterator`
 
 error: aborting due to previous error; 1 warning emitted
 
diff --git a/tests/ui/regions/issue-102374.stderr b/tests/ui/regions/issue-102374.stderr
index af64b6867bb..a4230cf8b5a 100644
--- a/tests/ui/regions/issue-102374.stderr
+++ b/tests/ui/regions/issue-102374.stderr
@@ -7,8 +7,7 @@ LL |     f
    |     ^ expected `i32`, found fn pointer
    |
    = note:    expected type `i32`
-           found fn pointer `fn(Cell<...>)`
-           the full type name has been written to '$TEST_BUILD_DIR/regions/issue-102374/issue-102374.long-type-hash.txt'
+           found fn pointer `for<'z1, 'a, 'b, 'c, 'd, 'e, 'f, 'g, 'h, 'i, 'j, 'k, 'l, 'm, 'n, 'o, 'p, 'q, 'r, 's, 't, 'u, 'v, 'w, 'x, 'y, 'z, 'z0> fn(Cell<(&'z1 i32, &'a i32, &'b i32, &'c i32, &'d i32, &'e i32, &'f i32, &'g i32, &'h i32, &'i i32, &'j i32, &'k i32, &'l i32, &'m i32, &'n i32, &'o i32, &'p i32, &'q i32, &'r i32, &'s i32, &'t i32, &'u i32, &'v i32, &'w i32, &'x i32, &'y i32, &'z i32, &'z0 i32)>)`
 
 error: aborting due to previous error
 
diff --git a/tests/ui/traits/issue-91949-hangs-on-recursion.stderr b/tests/ui/traits/issue-91949-hangs-on-recursion.stderr
index c721dd41a2c..c6fc7bb12c9 100644
--- a/tests/ui/traits/issue-91949-hangs-on-recursion.stderr
+++ b/tests/ui/traits/issue-91949-hangs-on-recursion.stderr
@@ -23,8 +23,7 @@ LL | impl<T, I: Iterator<Item = T>> Iterator for IteratorOfWrapped<T, I> {
    |                     |
    |                     unsatisfied trait bound introduced here
    = note: 256 redundant requirements hidden
-   = note: required for `IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<..., ...>>, ...>>, ...>>` to implement `Iterator`
-   = note: the full type name has been written to '$TEST_BUILD_DIR/traits/issue-91949-hangs-on-recursion/issue-91949-hangs-on-recursion.long-type-hash.txt'
+   = note: required for `IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), Map<IteratorOfWrapped<(), std::iter::Empty<()>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>, [closure@$DIR/issue-91949-hangs-on-recursion.rs:28:45: 28:48]>>` to implement `Iterator`
 
 error: aborting due to previous error; 1 warning emitted