Open
Description
auto-reduced (treereduce-rust):
//@compile-flags: --crate-type=lib
fn digit() -> str {
return { i32::MIN };
}original:
fn digit() -> str {
return {i32::MIN};
}Version information
rustc 1.85.0-nightly (d18506299 2024-12-15)
binary: rustc
commit-hash: d18506299bfb20488aba466a69641a2bab6f7a4a
commit-date: 2024-12-15
host: x86_64-unknown-linux-gnu
release: 1.85.0-nightly
LLVM version: 19.1.5
Command:
/home/matthias/.rustup/toolchains/master/bin/rustc --crate-type=lib
Program output
warning: unnecessary braces around `return` value
--> /tmp/icemaker_global_tempdir.QVsadqybRl15/rustc_testrunner_tmpdir_reporting.Ov3ZSIZ9UPa5/mvce.rs:2:12
|
2 | return { i32::MIN };
| ^^ ^^
|
= note: `#[warn(unused_braces)]` on by default
help: remove these braces
|
2 - return { i32::MIN };
2 + return i32::MIN;
|
warning: function `digit` is never used
--> /tmp/icemaker_global_tempdir.QVsadqybRl15/rustc_testrunner_tmpdir_reporting.Ov3ZSIZ9UPa5/mvce.rs:1:4
|
1 | fn digit() -> str {
| ^^^^^
|
= note: `#[warn(dead_code)]` on by default
warning: 2 warnings emitted
note: no errors encountered even though delayed bugs were created
note: those delayed bugs will now be shown as internal compiler errors
error: internal compiler error: coercion error but no error emitted
--> /tmp/icemaker_global_tempdir.QVsadqybRl15/rustc_testrunner_tmpdir_reporting.Ov3ZSIZ9UPa5/mvce.rs:2:14
|
2 | return { i32::MIN };
| ^^^^^^^^
|
note: delayed at compiler/rustc_hir_typeck/src/coercion.rs:1666:31 - disabled backtrace
--> /tmp/icemaker_global_tempdir.QVsadqybRl15/rustc_testrunner_tmpdir_reporting.Ov3ZSIZ9UPa5/mvce.rs:2:14
|
2 | return { i32::MIN };
| ^^^^^^^^
error: internal compiler error[E0308]: mismatched types
--> /tmp/icemaker_global_tempdir.QVsadqybRl15/rustc_testrunner_tmpdir_reporting.Ov3ZSIZ9UPa5/mvce.rs:2:14
|
1 | fn digit() -> str {
| --- expected `str` because of return type
2 | return { i32::MIN };
| ^^^^^^^^ expected `str`, found `i32`
|
note: delayed at compiler/rustc_trait_selection/src/error_reporting/infer/mod.rs:2038:35 - disabled backtrace
--> /tmp/icemaker_global_tempdir.QVsadqybRl15/rustc_testrunner_tmpdir_reporting.Ov3ZSIZ9UPa5/mvce.rs:2:14
|
2 | return { i32::MIN };
| ^^^^^^^^
error: internal compiler error[E0277]: the size for values of type `str` cannot be known at compilation time
--> /tmp/icemaker_global_tempdir.QVsadqybRl15/rustc_testrunner_tmpdir_reporting.Ov3ZSIZ9UPa5/mvce.rs:1:15
|
1 | fn digit() -> str {
| ^^^ doesn't have a size known at compile-time
|
= help: the trait `Sized` is not implemented for `str`
= note: the return type of a function must have a statically known size
note: delayed at compiler/rustc_trait_selection/src/error_reporting/traits/fulfillment_errors.rs:259:39 - disabled backtrace
--> /tmp/icemaker_global_tempdir.QVsadqybRl15/rustc_testrunner_tmpdir_reporting.Ov3ZSIZ9UPa5/mvce.rs:1:15
|
1 | fn digit() -> str {
| ^^^
note: we would appreciate a bug report: https://github.com/rust-lang/rust/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md
note: please make sure that you have updated to the latest nightly
note: rustc 1.85.0-nightly (d18506299 2024-12-15) running on x86_64-unknown-linux-gnu
note: compiler flags: --crate-type lib -Z dump-mir-dir=dir
query stack during panic:
end of query stack