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---- [ui] tests/ui/extern/extern-C-non-FFI-safe-arg-ice-52334.rs stdout ----
diff of stderr:

- warning: `extern` fn uses type `[i8 or u8 (arch dependant)]`, which is not FFI-safe
+ warning: `extern` fn uses type `CStr`, which is not FFI-safe
3    |
4 LL | type Foo = extern "C" fn(::std::ffi::CStr);

5    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
5    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
6    |
-    = help: consider using a raw pointer instead
-    = note: slices have no C equivalent
+    = help: consider passing a `*const std::ffi::c_char` instead, and use `CStr::as_ptr()`
+    = note: `CStr`/`CString` do not have a guaranteed layout
9    = note: `#[warn(improper_ctypes_definitions)]` on by default
10 
- warning: `extern` block uses type `[i8 or u8 (arch dependant)]`, which is not FFI-safe
+ warning: `extern` block uses type `CStr`, which is not FFI-safe
13    |
13    |
14 LL |     fn meh(blah: Foo);
15    |                  ^^^ not FFI-safe
16    |
-    = help: consider using a raw pointer instead
-    = help: consider using a raw pointer instead
-    = note: slices have no C equivalent
+    = help: consider passing a `*const std::ffi::c_char` instead, and use `CStr::as_ptr()`
+    = note: `CStr`/`CString` do not have a guaranteed layout
19    = note: `#[warn(improper_ctypes)]` on by default
21 warning: 2 warnings emitted


The actual stderr differed from the expected stderr.
The actual stderr differed from the expected stderr.
Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/extern/extern-C-non-FFI-safe-arg-ice-52334/extern-C-non-FFI-safe-arg-ice-52334.stderr
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args extern/extern-C-non-FFI-safe-arg-ice-52334.rs`

error: 1 errors occurred comparing output.
status: exit status: 0
command: env -u RUSTC_LOG_COLOR RUSTC_ICE="0" RUST_BACKTRACE="short" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage1/bin/rustc" "/checkout/tests/ui/extern/extern-C-non-FFI-safe-arg-ice-52334.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "-Z" "ignore-directory-in-diagnostics-source-blocks=/checkout/vendor" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/extern/extern-C-non-FFI-safe-arg-ice-52334" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/extern/extern-C-non-FFI-safe-arg-ice-52334/auxiliary"
--- stderr -------------------------------
--- stderr -------------------------------
warning: `extern` fn uses type `CStr`, which is not FFI-safe
   |
LL | type Foo = extern "C" fn(::std::ffi::CStr);
   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
   |
   |
   = help: consider passing a `*const std::ffi::c_char` instead, and use `CStr::as_ptr()`
   = note: `CStr`/`CString` do not have a guaranteed layout
   = note: `#[warn(improper_ctypes_definitions)]` on by default

warning: `extern` block uses type `CStr`, which is not FFI-safe
   |
   |
LL |     fn meh(blah: Foo);
   |                  ^^^ not FFI-safe
   |
   = help: consider passing a `*const std::ffi::c_char` instead, and use `CStr::as_ptr()`
   = note: `CStr`/`CString` do not have a guaranteed layout
   = note: `#[warn(improper_ctypes)]` on by default
warning: 2 warnings emitted
------------------------------------------