Specialize a few tests depending on opt-level.

2 files changed, 7 insertions, 13 deletions

diff --git a/src/test/ui/recursion/issue-83150.rs b/src/test/ui/recursion/issue-83150.rs
index 721c65ef3bc..e647f0ff4fb 100644
--- a/src/test/ui/recursion/issue-83150.rs
+++ b/src/test/ui/recursion/issue-83150.rs
@@ -1,4 +1,6 @@
 // build-fail
+// compile-flags: -Copt-level=0
+//~^^ ERROR overflow evaluating the requirement
 
 fn main() {
     let mut iter = 0u8..1;
@@ -7,5 +9,4 @@ fn main() {
 
 fn func<T: Iterator<Item = u8>>(iter: &mut T) { //~ WARN function cannot return without recursing
     func(&mut iter.map(|x| x + 1))
-    //~^ ERROR reached the recursion limit while instantiating
 }
diff --git a/src/test/ui/recursion/issue-83150.stderr b/src/test/ui/recursion/issue-83150.stderr
index cfb42f41356..aaa5884c60c 100644
--- a/src/test/ui/recursion/issue-83150.stderr
+++ b/src/test/ui/recursion/issue-83150.stderr
@@ -1,5 +1,5 @@
 warning: function cannot return without recursing
-  --> $DIR/issue-83150.rs:8:1
+  --> $DIR/issue-83150.rs:10:1
    |
 LL | fn func<T: Iterator<Item = u8>>(iter: &mut T) {
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
@@ -9,18 +9,11 @@ LL |     func(&mut iter.map(|x| x + 1))
    = note: `#[warn(unconditional_recursion)]` on by default
    = help: a `loop` may express intention better if this is on purpose
 
-error: reached the recursion limit while instantiating `func::<Map<&mut Map<&mut Map<&mu...ion/issue-83150.rs:9:24: 9:33]>>`
-  --> $DIR/issue-83150.rs:9:5
+error[E0275]: overflow evaluating the requirement `Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut Map<&mut std::ops::Range<u8>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>: Iterator`
    |
-LL |     func(&mut iter.map(|x| x + 1))
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-   |
-note: `func` defined here
-  --> $DIR/issue-83150.rs:8:1
-   |
-LL | fn func<T: Iterator<Item = u8>>(iter: &mut T) {
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-   = note: the full type name has been written to '$TEST_BUILD_DIR/recursion/issue-83150/issue-83150.long-type.txt'
+   = help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]` attribute to your crate (`issue_83150`)
+   = note: required because of the requirements on the impl of `Iterator` 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 std::ops::Range<u8>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>, [closure@$DIR/issue-83150.rs:11:24: 11:33]>`
 
 error: aborting due to previous error; 1 warning emitted
 
+For more information about this error, try `rustc --explain E0275`.