Move /src/test to /tests

19 files changed, 0 insertions, 637 deletions

diff --git a/src/test/ui/c-variadic/feature-gate-extended_varargs_abi_support.rs b/src/test/ui/c-variadic/feature-gate-extended_varargs_abi_support.rs
deleted file mode 100644
index 087743e505d..00000000000
--- a/src/test/ui/c-variadic/feature-gate-extended_varargs_abi_support.rs
+++ /dev/null
@@ -1,19 +0,0 @@
-#![feature(abi_efiapi)]
-
-fn efiapi(f: extern "efiapi" fn(usize, ...)) {
-    //~^ ERROR: C-variadic function must have a compatible calling convention, like `C` or `cdecl`
-    //~^^ ERROR: using calling conventions other than `C` or `cdecl` for varargs functions is unstable
-    f(22, 44);
-}
-fn sysv(f: extern "sysv64" fn(usize, ...)) {
-    //~^ ERROR: C-variadic function must have a compatible calling convention, like `C` or `cdecl`
-    //~^^ ERROR: using calling conventions other than `C` or `cdecl` for varargs functions is unstable
-    f(22, 44);
-}
-fn win(f: extern "win64" fn(usize, ...)) {
-    //~^ ERROR: C-variadic function must have a compatible calling convention, like `C` or `cdecl`
-    //~^^ ERROR: using calling conventions other than `C` or `cdecl` for varargs functions is unstable
-    f(22, 44);
-}
-
-fn main() {}
diff --git a/src/test/ui/c-variadic/feature-gate-extended_varargs_abi_support.stderr b/src/test/ui/c-variadic/feature-gate-extended_varargs_abi_support.stderr
deleted file mode 100644
index 007d7d7953c..00000000000
--- a/src/test/ui/c-variadic/feature-gate-extended_varargs_abi_support.stderr
+++ /dev/null
@@ -1,49 +0,0 @@
-error[E0658]: using calling conventions other than `C` or `cdecl` for varargs functions is unstable
-  --> $DIR/feature-gate-extended_varargs_abi_support.rs:3:14
-   |
-LL | fn efiapi(f: extern "efiapi" fn(usize, ...)) {
-   |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-   |
-   = note: see issue #100189 <https://github.com/rust-lang/rust/issues/100189> for more information
-   = help: add `#![feature(extended_varargs_abi_support)]` to the crate attributes to enable
-
-error[E0045]: C-variadic function must have a compatible calling convention, like `C` or `cdecl`
-  --> $DIR/feature-gate-extended_varargs_abi_support.rs:3:14
-   |
-LL | fn efiapi(f: extern "efiapi" fn(usize, ...)) {
-   |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ C-variadic function must have a compatible calling convention
-
-error[E0658]: using calling conventions other than `C` or `cdecl` for varargs functions is unstable
-  --> $DIR/feature-gate-extended_varargs_abi_support.rs:8:12
-   |
-LL | fn sysv(f: extern "sysv64" fn(usize, ...)) {
-   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-   |
-   = note: see issue #100189 <https://github.com/rust-lang/rust/issues/100189> for more information
-   = help: add `#![feature(extended_varargs_abi_support)]` to the crate attributes to enable
-
-error[E0045]: C-variadic function must have a compatible calling convention, like `C` or `cdecl`
-  --> $DIR/feature-gate-extended_varargs_abi_support.rs:8:12
-   |
-LL | fn sysv(f: extern "sysv64" fn(usize, ...)) {
-   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ C-variadic function must have a compatible calling convention
-
-error[E0658]: using calling conventions other than `C` or `cdecl` for varargs functions is unstable
-  --> $DIR/feature-gate-extended_varargs_abi_support.rs:13:11
-   |
-LL | fn win(f: extern "win64" fn(usize, ...)) {
-   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-   |
-   = note: see issue #100189 <https://github.com/rust-lang/rust/issues/100189> for more information
-   = help: add `#![feature(extended_varargs_abi_support)]` to the crate attributes to enable
-
-error[E0045]: C-variadic function must have a compatible calling convention, like `C` or `cdecl`
-  --> $DIR/feature-gate-extended_varargs_abi_support.rs:13:11
-   |
-LL | fn win(f: extern "win64" fn(usize, ...)) {
-   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ C-variadic function must have a compatible calling convention
-
-error: aborting due to 6 previous errors
-
-Some errors have detailed explanations: E0045, E0658.
-For more information about an error, try `rustc --explain E0045`.
diff --git a/src/test/ui/c-variadic/issue-32201.rs b/src/test/ui/c-variadic/issue-32201.rs
deleted file mode 100644
index f27bb1c2eb5..00000000000
--- a/src/test/ui/c-variadic/issue-32201.rs
+++ /dev/null
@@ -1,13 +0,0 @@
-extern "C" {
-    fn foo(a: i32, ...);
-}
-
-fn bar(_: *const u8) {}
-
-fn main() {
-    unsafe {
-        foo(0, bar);
-        //~^ ERROR can't pass `fn(*const u8) {bar}` to variadic function
-        //~| HELP cast the value to `fn(*const u8)`
-    }
-}
diff --git a/src/test/ui/c-variadic/issue-32201.stderr b/src/test/ui/c-variadic/issue-32201.stderr
deleted file mode 100644
index cedb5878466..00000000000
--- a/src/test/ui/c-variadic/issue-32201.stderr
+++ /dev/null
@@ -1,9 +0,0 @@
-error[E0617]: can't pass `fn(*const u8) {bar}` to variadic function
-  --> $DIR/issue-32201.rs:9:16
-   |
-LL |         foo(0, bar);
-   |                ^^^ help: cast the value to `fn(*const u8)`: `bar as fn(*const u8)`
-
-error: aborting due to previous error
-
-For more information about this error, try `rustc --explain E0617`.
diff --git a/src/test/ui/c-variadic/issue-86053-1.rs b/src/test/ui/c-variadic/issue-86053-1.rs
deleted file mode 100644
index b30548e19f9..00000000000
--- a/src/test/ui/c-variadic/issue-86053-1.rs
+++ /dev/null
@@ -1,12 +0,0 @@
-// Regression test for the ICE described in issue #86053.
-// error-pattern:unexpected `self` parameter in function
-// error-pattern:`...` must be the last argument of a C-variadic function
-// error-pattern:cannot find type `F` in this scope
-// error-pattern:in type `&'a &'b usize`, reference has a longer lifetime than the data it references
-
-#![feature(c_variadic)]
-#![crate_type="lib"]
-
-fn ordering4 < 'a , 'b     > ( a :            ,   self , self ,   self ,
-    self , ... ,   self ,   self , ... ) where F : FnOnce ( & 'a & 'b usize ) {
-}
diff --git a/src/test/ui/c-variadic/issue-86053-1.stderr b/src/test/ui/c-variadic/issue-86053-1.stderr
deleted file mode 100644
index d1f13d52362..00000000000
--- a/src/test/ui/c-variadic/issue-86053-1.stderr
+++ /dev/null
@@ -1,99 +0,0 @@
-error: expected type, found `,`
-  --> $DIR/issue-86053-1.rs:10:47
-   |
-LL | fn ordering4 < 'a , 'b     > ( a :            ,   self , self ,   self ,
-   |                                               ^ expected type
-
-error: unexpected `self` parameter in function
-  --> $DIR/issue-86053-1.rs:10:51
-   |
-LL | fn ordering4 < 'a , 'b     > ( a :            ,   self , self ,   self ,
-   |                                                   ^^^^ must be the first parameter of an associated function
-
-error: unexpected `self` parameter in function
-  --> $DIR/issue-86053-1.rs:10:58
-   |
-LL | fn ordering4 < 'a , 'b     > ( a :            ,   self , self ,   self ,
-   |                                                          ^^^^ must be the first parameter of an associated function
-
-error: unexpected `self` parameter in function
-  --> $DIR/issue-86053-1.rs:10:67
-   |
-LL | fn ordering4 < 'a , 'b     > ( a :            ,   self , self ,   self ,
-   |                                                                   ^^^^ must be the first parameter of an associated function
-
-error: unexpected `self` parameter in function
-  --> $DIR/issue-86053-1.rs:11:5
-   |
-LL |     self , ... ,   self ,   self , ... ) where F : FnOnce ( & 'a & 'b usize ) {
-   |     ^^^^ must be the first parameter of an associated function
-
-error: unexpected `self` parameter in function
-  --> $DIR/issue-86053-1.rs:11:20
-   |
-LL |     self , ... ,   self ,   self , ... ) where F : FnOnce ( & 'a & 'b usize ) {
-   |                    ^^^^ must be the first parameter of an associated function
-
-error: unexpected `self` parameter in function
-  --> $DIR/issue-86053-1.rs:11:29
-   |
-LL |     self , ... ,   self ,   self , ... ) where F : FnOnce ( & 'a & 'b usize ) {
-   |                             ^^^^ must be the first parameter of an associated function
-
-error: `...` must be the last argument of a C-variadic function
-  --> $DIR/issue-86053-1.rs:11:12
-   |
-LL |     self , ... ,   self ,   self , ... ) where F : FnOnce ( & 'a & 'b usize ) {
-   |            ^^^
-
-error: only foreign or `unsafe extern "C"` functions may be C-variadic
-  --> $DIR/issue-86053-1.rs:11:12
-   |
-LL |     self , ... ,   self ,   self , ... ) where F : FnOnce ( & 'a & 'b usize ) {
-   |            ^^^
-
-error: only foreign or `unsafe extern "C"` functions may be C-variadic
-  --> $DIR/issue-86053-1.rs:11:36
-   |
-LL |     self , ... ,   self ,   self , ... ) where F : FnOnce ( & 'a & 'b usize ) {
-   |                                    ^^^
-
-error[E0412]: cannot find type `F` in this scope
-  --> $DIR/issue-86053-1.rs:11:48
-   |
-LL |     self , ... ,   self ,   self , ... ) where F : FnOnce ( & 'a & 'b usize ) {
-   |                                                ^
-  --> $SRC_DIR/core/src/ops/function.rs:LL:COL
-   |
-   = note: similarly named trait `Fn` defined here
-   |
-help: a trait with a similar name exists
-   |
-LL |     self , ... ,   self ,   self , ... ) where Fn : FnOnce ( & 'a & 'b usize ) {
-   |                                                ~~
-help: you might be missing a type parameter
-   |
-LL | fn ordering4 < 'a , 'b, F     > ( a :            ,   self , self ,   self ,
-   |                       +++
-
-error[E0491]: in type `&'a &'b usize`, reference has a longer lifetime than the data it references
-  --> $DIR/issue-86053-1.rs:11:52
-   |
-LL |     self , ... ,   self ,   self , ... ) where F : FnOnce ( & 'a & 'b usize ) {
-   |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^
-   |
-note: the pointer is valid for the lifetime `'a` as defined here
-  --> $DIR/issue-86053-1.rs:10:16
-   |
-LL | fn ordering4 < 'a , 'b     > ( a :            ,   self , self ,   self ,
-   |                ^^
-note: but the referenced data is only valid for the lifetime `'b` as defined here
-  --> $DIR/issue-86053-1.rs:10:21
-   |
-LL | fn ordering4 < 'a , 'b     > ( a :            ,   self , self ,   self ,
-   |                     ^^
-
-error: aborting due to 12 previous errors
-
-Some errors have detailed explanations: E0412, E0491.
-For more information about an error, try `rustc --explain E0412`.
diff --git a/src/test/ui/c-variadic/issue-86053-2.rs b/src/test/ui/c-variadic/issue-86053-2.rs
deleted file mode 100644
index c545831f717..00000000000
--- a/src/test/ui/c-variadic/issue-86053-2.rs
+++ /dev/null
@@ -1,11 +0,0 @@
-// Regression test for the ICE caused by the example in
-// https://github.com/rust-lang/rust/issues/86053#issuecomment-855672258
-
-#![feature(c_variadic)]
-
-trait H<T> {}
-
-unsafe extern "C" fn ordering4<'a, F: H<&'static &'a ()>>(_: (), ...) {}
-//~^ ERROR: in type `&'static &'a ()`, reference has a longer lifetime than the data it references [E0491]
-
-fn main() {}
diff --git a/src/test/ui/c-variadic/issue-86053-2.stderr b/src/test/ui/c-variadic/issue-86053-2.stderr
deleted file mode 100644
index 815b06e7708..00000000000
--- a/src/test/ui/c-variadic/issue-86053-2.stderr
+++ /dev/null
@@ -1,16 +0,0 @@
-error[E0491]: in type `&'static &'a ()`, reference has a longer lifetime than the data it references
-  --> $DIR/issue-86053-2.rs:8:39
-   |
-LL | unsafe extern "C" fn ordering4<'a, F: H<&'static &'a ()>>(_: (), ...) {}
-   |                                       ^^^^^^^^^^^^^^^^^^
-   |
-   = note: the pointer is valid for the static lifetime
-note: but the referenced data is only valid for the lifetime `'a` as defined here
-  --> $DIR/issue-86053-2.rs:8:32
-   |
-LL | unsafe extern "C" fn ordering4<'a, F: H<&'static &'a ()>>(_: (), ...) {}
-   |                                ^^
-
-error: aborting due to previous error
-
-For more information about this error, try `rustc --explain E0491`.
diff --git a/src/test/ui/c-variadic/variadic-ffi-1.rs b/src/test/ui/c-variadic/variadic-ffi-1.rs
deleted file mode 100644
index acd8a25dc53..00000000000
--- a/src/test/ui/c-variadic/variadic-ffi-1.rs
+++ /dev/null
@@ -1,35 +0,0 @@
-// needs-llvm-components: x86
-// compile-flags: --target=i686-pc-windows-msvc --crate-type=rlib
-#![no_core]
-#![feature(no_core, lang_items)]
-#[lang="sized"]
-trait Sized { }
-
-extern "stdcall" {
-    fn printf(_: *const u8, ...);
-    //~^ ERROR: C-variadic function must have a compatible calling convention,
-    // like C, cdecl, win64, sysv64 or efiapi
-}
-
-extern "C" {
-    fn foo(f: isize, x: u8, ...);
-}
-
-extern "C" fn bar(f: isize, x: u8) {}
-
-fn main() {
-    unsafe {
-        foo(); //~ ERROR function takes at least 2 arguments but 0 arguments were supplied
-        foo(1); //~ ERROR function takes at least 2 arguments but 1 argument was supplied
-
-        let x: unsafe extern "C" fn(f: isize, x: u8) = foo; //~ ERROR mismatched types
-        let y: extern "C" fn(f: isize, x: u8, ...) = bar; //~ ERROR mismatched types
-
-        foo(1, 2, 3f32); //~ ERROR can't pass
-        foo(1, 2, true); //~ ERROR can't pass
-        foo(1, 2, 1i8); //~ ERROR can't pass
-        foo(1, 2, 1u8); //~ ERROR can't pass
-        foo(1, 2, 1i16); //~ ERROR can't pass
-        foo(1, 2, 1u16); //~ ERROR can't pass
-    }
-}
diff --git a/src/test/ui/c-variadic/variadic-ffi-1.stderr b/src/test/ui/c-variadic/variadic-ffi-1.stderr
deleted file mode 100644
index 4beea83d8a5..00000000000
--- a/src/test/ui/c-variadic/variadic-ffi-1.stderr
+++ /dev/null
@@ -1,100 +0,0 @@
-error[E0045]: C-variadic function must have a compatible calling convention, like `C` or `cdecl`
-  --> $DIR/variadic-ffi-1.rs:9:5
-   |
-LL |     fn printf(_: *const u8, ...);
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ C-variadic function must have a compatible calling convention
-
-error[E0060]: this function takes at least 2 arguments but 0 arguments were supplied
-  --> $DIR/variadic-ffi-1.rs:22:9
-   |
-LL |         foo();
-   |         ^^^-- two arguments of type `isize` and `u8` are missing
-   |
-note: function defined here
-  --> $DIR/variadic-ffi-1.rs:15:8
-   |
-LL |     fn foo(f: isize, x: u8, ...);
-   |        ^^^
-help: provide the arguments
-   |
-LL |         foo(/* isize */, /* u8 */);
-   |            ~~~~~~~~~~~~~~~~~~~~~~~
-
-error[E0060]: this function takes at least 2 arguments but 1 argument was supplied
-  --> $DIR/variadic-ffi-1.rs:23:9
-   |
-LL |         foo(1);
-   |         ^^^--- an argument of type `u8` is missing
-   |
-note: function defined here
-  --> $DIR/variadic-ffi-1.rs:15:8
-   |
-LL |     fn foo(f: isize, x: u8, ...);
-   |        ^^^
-help: provide the argument
-   |
-LL |         foo(1, /* u8 */);
-   |            ~~~~~~~~~~~~~
-
-error[E0308]: mismatched types
-  --> $DIR/variadic-ffi-1.rs:25:56
-   |
-LL |         let x: unsafe extern "C" fn(f: isize, x: u8) = foo;
-   |                -------------------------------------   ^^^ expected non-variadic fn, found variadic function
-   |                |
-   |                expected due to this
-   |
-   = note: expected fn pointer `unsafe extern "C" fn(_, _)`
-                 found fn item `unsafe extern "C" fn(_, _, ...) {foo}`
-
-error[E0308]: mismatched types
-  --> $DIR/variadic-ffi-1.rs:26:54
-   |
-LL |         let y: extern "C" fn(f: isize, x: u8, ...) = bar;
-   |                -----------------------------------   ^^^ expected variadic fn, found non-variadic function
-   |                |
-   |                expected due to this
-   |
-   = note: expected fn pointer `extern "C" fn(_, _, ...)`
-                 found fn item `extern "C" fn(_, _) {bar}`
-
-error[E0617]: can't pass `f32` to variadic function
-  --> $DIR/variadic-ffi-1.rs:28:19
-   |
-LL |         foo(1, 2, 3f32);
-   |                   ^^^^ help: cast the value to `c_double`: `3f32 as c_double`
-
-error[E0617]: can't pass `bool` to variadic function
-  --> $DIR/variadic-ffi-1.rs:29:19
-   |
-LL |         foo(1, 2, true);
-   |                   ^^^^ help: cast the value to `c_int`: `true as c_int`
-
-error[E0617]: can't pass `i8` to variadic function
-  --> $DIR/variadic-ffi-1.rs:30:19
-   |
-LL |         foo(1, 2, 1i8);
-   |                   ^^^ help: cast the value to `c_int`: `1i8 as c_int`
-
-error[E0617]: can't pass `u8` to variadic function
-  --> $DIR/variadic-ffi-1.rs:31:19
-   |
-LL |         foo(1, 2, 1u8);
-   |                   ^^^ help: cast the value to `c_uint`: `1u8 as c_uint`
-
-error[E0617]: can't pass `i16` to variadic function
-  --> $DIR/variadic-ffi-1.rs:32:19
-   |
-LL |         foo(1, 2, 1i16);
-   |                   ^^^^ help: cast the value to `c_int`: `1i16 as c_int`
-
-error[E0617]: can't pass `u16` to variadic function
-  --> $DIR/variadic-ffi-1.rs:33:19
-   |
-LL |         foo(1, 2, 1u16);
-   |                   ^^^^ help: cast the value to `c_uint`: `1u16 as c_uint`
-
-error: aborting due to 11 previous errors
-
-Some errors have detailed explanations: E0045, E0060, E0308, E0617.
-For more information about an error, try `rustc --explain E0045`.
diff --git a/src/test/ui/c-variadic/variadic-ffi-2.rs b/src/test/ui/c-variadic/variadic-ffi-2.rs
deleted file mode 100644
index 96cea87546e..00000000000
--- a/src/test/ui/c-variadic/variadic-ffi-2.rs
+++ /dev/null
@@ -1,21 +0,0 @@
-// ignore-arm stdcall isn't supported
-#![feature(extended_varargs_abi_support)]
-#![feature(abi_efiapi)]
-
-fn baz(f: extern "stdcall" fn(usize, ...)) {
-    //~^ ERROR: C-variadic function must have a compatible calling convention,
-    // like C, cdecl, win64, sysv64 or efiapi
-    f(22, 44);
-}
-
-fn sysv(f: extern "sysv64" fn(usize, ...)) {
-    f(22, 44);
-}
-fn win(f: extern "win64" fn(usize, ...)) {
-    f(22, 44);
-}
-fn efiapi(f: extern "efiapi" fn(usize, ...)) {
-    f(22, 44);
-}
-
-fn main() {}
diff --git a/src/test/ui/c-variadic/variadic-ffi-2.stderr b/src/test/ui/c-variadic/variadic-ffi-2.stderr
deleted file mode 100644
index 4e74c9d9227..00000000000
--- a/src/test/ui/c-variadic/variadic-ffi-2.stderr
+++ /dev/null
@@ -1,9 +0,0 @@
-error[E0045]: C-variadic function must have a compatible calling convention, like `C`, `cdecl`, `win64`, `sysv64` or `efiapi`
-  --> $DIR/variadic-ffi-2.rs:5:11
-   |
-LL | fn baz(f: extern "stdcall" fn(usize, ...)) {
-   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ C-variadic function must have a compatible calling convention
-
-error: aborting due to previous error
-
-For more information about this error, try `rustc --explain E0045`.
diff --git a/src/test/ui/c-variadic/variadic-ffi-4.rs b/src/test/ui/c-variadic/variadic-ffi-4.rs
deleted file mode 100644
index 80640379422..00000000000
--- a/src/test/ui/c-variadic/variadic-ffi-4.rs
+++ /dev/null
@@ -1,38 +0,0 @@
-#![crate_type = "lib"]
-#![no_std]
-#![feature(c_variadic)]
-
-use core::ffi::{VaList, VaListImpl};
-
-pub unsafe extern "C" fn no_escape0<'f>(_: usize, ap: ...) -> VaListImpl<'f> {
-    ap
-    //~^ ERROR: lifetime may not live long enough
-    //~| ERROR: lifetime may not live long enough
-}
-
-pub unsafe extern "C" fn no_escape1(_: usize, ap: ...) -> VaListImpl<'static> {
-    ap //~ ERROR: lifetime may not live long enough
-}
-
-pub unsafe extern "C" fn no_escape2(_: usize, ap: ...) {
-    let _ = ap.with_copy(|ap| ap); //~ ERROR: lifetime may not live long enough
-}
-
-pub unsafe extern "C" fn no_escape3(_: usize, mut ap0: &mut VaListImpl, mut ap1: ...) {
-    *ap0 = ap1;
-    //~^ ERROR: lifetime may not live long enough
-    //~| ERROR: lifetime may not live long enough
-}
-
-pub unsafe extern "C" fn no_escape4(_: usize, mut ap0: &mut VaListImpl, mut ap1: ...) {
-    ap0 = &mut ap1;
-    //~^ ERROR: `ap1` does not live long enough
-    //~| ERROR: lifetime may not live long enough
-    //~| ERROR: lifetime may not live long enough
-}
-
-pub unsafe extern "C" fn no_escape5(_: usize, mut ap0: &mut VaListImpl, mut ap1: ...) {
-    *ap0 = ap1.clone();
-    //~^ ERROR: lifetime may not live long enough
-    //~| ERROR: lifetime may not live long enough
-}
diff --git a/src/test/ui/c-variadic/variadic-ffi-4.stderr b/src/test/ui/c-variadic/variadic-ffi-4.stderr
deleted file mode 100644
index 6f8e53298ac..00000000000
--- a/src/test/ui/c-variadic/variadic-ffi-4.stderr
+++ /dev/null
@@ -1,150 +0,0 @@
-error: lifetime may not live long enough
-  --> $DIR/variadic-ffi-4.rs:8:5
-   |
-LL | pub unsafe extern "C" fn no_escape0<'f>(_: usize, ap: ...) -> VaListImpl<'f> {
-   |                                     --            -- has type `VaListImpl<'1>`
-   |                                     |
-   |                                     lifetime `'f` defined here
-LL |     ap
-   |     ^^ function was supposed to return data with lifetime `'1` but it is returning data with lifetime `'f`
-   |
-   = note: requirement occurs because of the type `VaListImpl<'_>`, which makes the generic argument `'_` invariant
-   = note: the struct `VaListImpl<'f>` is invariant over the parameter `'f`
-   = help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance
-
-error: lifetime may not live long enough
-  --> $DIR/variadic-ffi-4.rs:8:5
-   |
-LL | pub unsafe extern "C" fn no_escape0<'f>(_: usize, ap: ...) -> VaListImpl<'f> {
-   |                                     --            -- has type `VaListImpl<'1>`
-   |                                     |
-   |                                     lifetime `'f` defined here
-LL |     ap
-   |     ^^ function was supposed to return data with lifetime `'f` but it is returning data with lifetime `'1`
-   |
-   = note: requirement occurs because of the type `VaListImpl<'_>`, which makes the generic argument `'_` invariant
-   = note: the struct `VaListImpl<'f>` is invariant over the parameter `'f`
-   = help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance
-
-error: lifetime may not live long enough
-  --> $DIR/variadic-ffi-4.rs:14:5
-   |
-LL | pub unsafe extern "C" fn no_escape1(_: usize, ap: ...) -> VaListImpl<'static> {
-   |                                               -- has type `VaListImpl<'1>`
-LL |     ap
-   |     ^^ returning this value requires that `'1` must outlive `'static`
-   |
-   = note: requirement occurs because of the type `VaListImpl<'_>`, which makes the generic argument `'_` invariant
-   = note: the struct `VaListImpl<'f>` is invariant over the parameter `'f`
-   = help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance
-
-error: lifetime may not live long enough
-  --> $DIR/variadic-ffi-4.rs:18:31
-   |
-LL |     let _ = ap.with_copy(|ap| ap);
-   |                           --- ^^ returning this value requires that `'1` must outlive `'2`
-   |                           | |
-   |                           | return type of closure is VaList<'2, '_>
-   |                           has type `VaList<'1, '_>`
-
-error: lifetime may not live long enough
-  --> $DIR/variadic-ffi-4.rs:22:5
-   |
-LL | pub unsafe extern "C" fn no_escape3(_: usize, mut ap0: &mut VaListImpl, mut ap1: ...) {
-   |                                               -------                   ------- has type `VaListImpl<'2>`
-   |                                               |
-   |                                               has type `&mut VaListImpl<'1>`
-LL |     *ap0 = ap1;
-   |     ^^^^ assignment requires that `'1` must outlive `'2`
-   |
-   = note: requirement occurs because of the type `VaListImpl<'_>`, which makes the generic argument `'_` invariant
-   = note: the struct `VaListImpl<'f>` is invariant over the parameter `'f`
-   = help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance
-
-error: lifetime may not live long enough
-  --> $DIR/variadic-ffi-4.rs:22:5
-   |
-LL | pub unsafe extern "C" fn no_escape3(_: usize, mut ap0: &mut VaListImpl, mut ap1: ...) {
-   |                                               -------                   ------- has type `VaListImpl<'2>`
-   |                                               |
-   |                                               has type `&mut VaListImpl<'1>`
-LL |     *ap0 = ap1;
-   |     ^^^^ assignment requires that `'2` must outlive `'1`
-   |
-   = note: requirement occurs because of the type `VaListImpl<'_>`, which makes the generic argument `'_` invariant
-   = note: the struct `VaListImpl<'f>` is invariant over the parameter `'f`
-   = help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance
-
-error: lifetime may not live long enough
-  --> $DIR/variadic-ffi-4.rs:28:5
-   |
-LL | pub unsafe extern "C" fn no_escape4(_: usize, mut ap0: &mut VaListImpl, mut ap1: ...) {
-   |                                               -------                   ------- has type `VaListImpl<'2>`
-   |                                               |
-   |                                               has type `&mut VaListImpl<'1>`
-LL |     ap0 = &mut ap1;
-   |     ^^^^^^^^^^^^^^ assignment requires that `'1` must outlive `'2`
-   |
-   = note: requirement occurs because of a mutable reference to `VaListImpl<'_>`
-   = note: mutable references are invariant over their type parameter
-   = help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance
-
-error: lifetime may not live long enough
-  --> $DIR/variadic-ffi-4.rs:28:5
-   |
-LL | pub unsafe extern "C" fn no_escape4(_: usize, mut ap0: &mut VaListImpl, mut ap1: ...) {
-   |                                               -------                   ------- has type `VaListImpl<'2>`
-   |                                               |
-   |                                               has type `&mut VaListImpl<'1>`
-LL |     ap0 = &mut ap1;
-   |     ^^^^^^^^^^^^^^ assignment requires that `'2` must outlive `'1`
-   |
-   = note: requirement occurs because of a mutable reference to `VaListImpl<'_>`
-   = note: mutable references are invariant over their type parameter
-   = help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance
-
-error[E0597]: `ap1` does not live long enough
-  --> $DIR/variadic-ffi-4.rs:28:11
-   |
-LL | pub unsafe extern "C" fn no_escape4(_: usize, mut ap0: &mut VaListImpl, mut ap1: ...) {
-   |                                                        - let's call the lifetime of this reference `'3`
-LL |     ap0 = &mut ap1;
-   |     ------^^^^^^^^
-   |     |     |
-   |     |     borrowed value does not live long enough
-   |     assignment requires that `ap1` is borrowed for `'3`
-...
-LL | }
-   | - `ap1` dropped here while still borrowed
-
-error: lifetime may not live long enough
-  --> $DIR/variadic-ffi-4.rs:35:12
-   |
-LL | pub unsafe extern "C" fn no_escape5(_: usize, mut ap0: &mut VaListImpl, mut ap1: ...) {
-   |                                               -------                   ------- has type `VaListImpl<'2>`
-   |                                               |
-   |                                               has type `&mut VaListImpl<'1>`
-LL |     *ap0 = ap1.clone();
-   |            ^^^^^^^^^^^ argument requires that `'1` must outlive `'2`
-   |
-   = note: requirement occurs because of the type `VaListImpl<'_>`, which makes the generic argument `'_` invariant
-   = note: the struct `VaListImpl<'f>` is invariant over the parameter `'f`
-   = help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance
-
-error: lifetime may not live long enough
-  --> $DIR/variadic-ffi-4.rs:35:12
-   |
-LL | pub unsafe extern "C" fn no_escape5(_: usize, mut ap0: &mut VaListImpl, mut ap1: ...) {
-   |                                               -------                   ------- has type `VaListImpl<'2>`
-   |                                               |
-   |                                               has type `&mut VaListImpl<'1>`
-LL |     *ap0 = ap1.clone();
-   |            ^^^^^^^^^^^ argument requires that `'2` must outlive `'1`
-   |
-   = note: requirement occurs because of the type `VaListImpl<'_>`, which makes the generic argument `'_` invariant
-   = note: the struct `VaListImpl<'f>` is invariant over the parameter `'f`
-   = help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance
-
-error: aborting due to 11 previous errors
-
-For more information about this error, try `rustc --explain E0597`.
diff --git a/src/test/ui/c-variadic/variadic-ffi-6.rs b/src/test/ui/c-variadic/variadic-ffi-6.rs
deleted file mode 100644
index 4dd8a2d4521..00000000000
--- a/src/test/ui/c-variadic/variadic-ffi-6.rs
+++ /dev/null
@@ -1,13 +0,0 @@
-#![crate_type="lib"]
-#![feature(c_variadic)]
-
-pub unsafe extern "C" fn use_vararg_lifetime(
-    x: usize,
-    y: ...
-) -> &usize { //~ ERROR missing lifetime specifier
-    &0
-}
-
-pub unsafe extern "C" fn use_normal_arg_lifetime(x: &usize, y: ...) -> &usize { // OK
-    x
-}
diff --git a/src/test/ui/c-variadic/variadic-ffi-6.stderr b/src/test/ui/c-variadic/variadic-ffi-6.stderr
deleted file mode 100644
index 4c7792d9650..00000000000
--- a/src/test/ui/c-variadic/variadic-ffi-6.stderr
+++ /dev/null
@@ -1,15 +0,0 @@
-error[E0106]: missing lifetime specifier
-  --> $DIR/variadic-ffi-6.rs:7:6
-   |
-LL | ) -> &usize {
-   |      ^ expected named lifetime parameter
-   |
-   = help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from
-help: consider using the `'static` lifetime
-   |
-LL | ) -> &'static usize {
-   |       +++++++
-
-error: aborting due to previous error
-
-For more information about this error, try `rustc --explain E0106`.
diff --git a/src/test/ui/c-variadic/variadic-ffi-no-fixed-args.rs b/src/test/ui/c-variadic/variadic-ffi-no-fixed-args.rs
deleted file mode 100644
index 588c15a1829..00000000000
--- a/src/test/ui/c-variadic/variadic-ffi-no-fixed-args.rs
+++ /dev/null
@@ -1,6 +0,0 @@
-extern "C" {
-    fn foo(...);
-//~^ ERROR C-variadic function must be declared with at least one named argument
-}
-
-fn main() {}
diff --git a/src/test/ui/c-variadic/variadic-ffi-no-fixed-args.stderr b/src/test/ui/c-variadic/variadic-ffi-no-fixed-args.stderr
deleted file mode 100644
index e11ba43ca2a..00000000000
--- a/src/test/ui/c-variadic/variadic-ffi-no-fixed-args.stderr
+++ /dev/null
@@ -1,8 +0,0 @@
-error: C-variadic function must be declared with at least one named argument
-  --> $DIR/variadic-ffi-no-fixed-args.rs:2:12
-   |
-LL |     fn foo(...);
-   |            ^^^
-
-error: aborting due to previous error
-
diff --git a/src/test/ui/c-variadic/variadic-unreachable-arg-error.rs b/src/test/ui/c-variadic/variadic-unreachable-arg-error.rs
deleted file mode 100644
index f60f6f3e808..00000000000
--- a/src/test/ui/c-variadic/variadic-unreachable-arg-error.rs
+++ /dev/null
@@ -1,14 +0,0 @@
-// check-pass
-
-#![feature(c_variadic)]
-
-extern "C" {
-    fn foo(f: isize, x: u8, ...);
-}
-
-fn main() {
-    unsafe {
-        // FIXME: Ideally we could give an unreachable warning
-        foo(1, loop {}, 1usize);
-    }
-}