- LegacyKeyValueFormat: "ENV key=value" should be used instead of legacy "ENV key value" format (line 48) - LegacyKeyValueFormat: "ENV key=value" should be used instead of legacy "ENV key value" format (line 51) - LegacyKeyValueFormat: "ENV key=value" should be used instead of legacy "ENV key value" format (line 66)##[endgroup]Setting extra environment values for docker:  --env ENABLE_GCC_CODEGEN=1 --env GCC_EXEC_PREFIX=/usr/lib/gcc/[CI_JOB_NAME=x86_64-gnu-llvm-19][CI_JOB_NAME=x86_64-gnu-llvm-19]debug: `DISABLE_CI_RUSTC_IF_INCOMPATIBLE` configured.---sccache: Listening on address 127.0.0.1:4226##[group]Configure the buildconfigure: processing command lineconfigure: configure: build.configure-args := ['--build=x86_64-unknown-linux-gnu', '--llvm-root=/usr/lib/llvm-19', '--enable-llvm-link-shared', '--set', 'rust.randomize-layout=true', '--set', 'rust.thin-lto-import-instr-limit=10', '--set', 'build.print-step-timings', '--enable-verbose-tests', '--set', 'build.metrics', '--enable-verbose-configure', '--enable-sccache', '--disable-manage-submodules', '--enable-locked-deps', '--enable-cargo-native-static', '--set', 'rust.codegen-units-std=1', '--set', 'dist.compression-profile=balanced', '--dist-compression-formats=xz', '--disable-dist-src', '--release-channel=nightly', '--enable-debug-assertions', '--enable-overflow-checks', '--enable-llvm-assertions', '--set', 'rust.verify-llvm-ir', '--set', 'rust.codegen-backends=llvm,cranelift,gcc', '--set', 'llvm.static-libstdcpp', '--set', 'gcc.download-ci-gcc=true', '--enable-new-symbol-mangling']configure: build.build          := x86_64-unknown-linux-gnuconfigure: target.x86_64-unknown-linux-gnu.llvm-config := /usr/lib/llvm-19/bin/llvm-configconfigure: llvm.link-shared     := Trueconfigure: rust.randomize-layout := Trueconfigure: rust.thin-lto-import-instr-limit := 10------- [mir-opt] tests/mir-opt/gvn_const_eval_polymorphic.rs stdout ----error: compilation failed!status: exit status: 1command: env -u RUSTC_LOG_COLOR RUSTC_ICE="0" RUST_BACKTRACE="short" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/mir-opt/gvn_const_eval_polymorphic.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/stage2" "--target=i686-unknown-linux-gnu" "--check-cfg" "cfg(test,FALSE)" "-O" "-Copt-level=1" "-Zdump-mir=GVN | GVN | GVN" "-Zvalidate-mir" "-Zlint-mir" "-Zdump-mir-exclude-pass-number" "-Zmir-include-spans=false" "--crate-type=rlib" "-Zmir-opt-level=0" "-Zmir-enable-passes=+GVN" "-Zdump-mir-dir=/checkout/obj/build/x86_64-unknown-linux-gnu/test/mir-opt/gvn_const_eval_polymorphic" "--emit" "mir" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/mir-opt/gvn_const_eval_polymorphic" "-A" "internal_features" "-A" "unused_parens" "-A" "unused_braces" "-Crpath" "-Cdebuginfo=0" "--crate-type" "lib"stdout: none--- stderr -------------------------------error: `std::any::type_name` is not yet stable as a const fn##[error]  --> /checkout/tests/mir-opt/gvn_const_eval_polymorphic.rs:17:16   |

error[E0080]: `ptr_offset_from` called on two different pointers that are not both derived from the same allocation   --> src/lib.rs:19:19    |19  | const FAILS: () = assert_same_type::<i32, i64>();    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `FAILS` failed inside this call    |note: inside `assert_same_type::<i32, i64>`   --> src/lib.rs:12:17    |12  |         let _ = ptr1.offset_from(ptr2);    |                 ^^^^^^^^^^^^^^^^^^^^^^note: inside `std::ptr::const_ptr::<impl *const u8>::offset_from`   --> /playground/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ptr/const_ptr.rs:671:18    |671 |         unsafe { intrinsics::ptr_offset_from(self, origin) }    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the failure occurred hereFor more information about this error, try `rustc --explain E0080`.error: could not compile `playground` (lib) due to 1 previous error

#![feature(const_type_id)]use std::mem::transmute;use std::any::TypeId;/*// I used this code to make the compiler tell me what the hash istrait Super {}trait Sub: Super {}const SHOW_HASH_1: () = unsafe {    let id = TypeId::of::<i32>();    let [first, second]: [*const (); 2] = transmute(id);    let ptr: *const dyn Sub = transmute([second, first]);    let _: *const dyn Super = ptr;};const SHOW_HASH_2: () = unsafe {    let id = TypeId::of::<i32>();    let ptr: *const dyn Sub = transmute(id);    let _: *const dyn Super = ptr;};*/constHASH_1:usize =0x50bb9674fa2df013;constHASH_2:usize =0x56ced5e4a15bd890;constfnassert_is_i32<T:'static,constA:usize,constB:usize>(){const{unsafe{let id =TypeId::of::<T>();let[ptr1, _]:[*constu8;2] =transmute(id);&*ptr1.wrapping_sub(A).cast::<()>()}};const{unsafe{let id =TypeId::of::<T>();let[_, ptr2]:[*constu8;2] =transmute(id);&*ptr2.wrapping_sub(B).cast::<()>()}};}constWORKS:() =assert_is_i32::<i32,HASH_1,HASH_2>();constFAILS:() =assert_is_i32::<i64,HASH_1,HASH_2>();

error[E0080]: constructing invalid value: encountered a null reference  --> src/lib.rs:30:11   |30 |       const { unsafe {   |  ___________^31 | |         let id = TypeId::of::<T>();32 | |         let [ptr1, _]: [*const u8; 2] = transmute(id);33 | |         &*ptr1.wrapping_sub(A).cast::<()>()34 | |     }};   | |______^ it is undefined behavior to use this value   |   = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior.   = note: the raw bytes of the constant (size: 8, align: 8) {               ╾a27+0xaf86f48ac476294e<imm> (8 ptr bytes)╼                         │ ╾──────╼           }note: erroneous constant encountered  --> src/lib.rs:30:5   |30 | /     const { unsafe {31 | |         let id = TypeId::of::<T>();32 | |         let [ptr1, _]: [*const u8; 2] = transmute(id);33 | |         &*ptr1.wrapping_sub(A).cast::<()>()34 | |     }};   | |______^For more information about this error, try `rustc --explain E0080`.error: could not compile `playground` (lib) due to 1 previous error

#![feature(const_type_id, const_raw_ptr_comparison)]use std::any::TypeId;use std::mem::transmute;use std::ptr::null;constHASH_1:usize =0x50bb9674fa2df013;constHASH_2:usize =0x56ced5e4a15bd890;constfnis_i32<T:'static>() ->bool{unsafe{let id =TypeId::of::<T>();let[ptr1, ptr2]:[*constu8;2] =transmute(id);matches!(ptr1.wrapping_sub(HASH_1).guaranteed_eq(null()),Some(false))            &&matches!(ptr2.wrapping_sub(HASH_2).guaranteed_eq(null()),Some(false))}}constYES:bool =is_i32::<i32>();constNAH:bool =is_i32::<i64>();fnmain(){println!("{YES}");// prints "true"println!("{NAH}");// prints "false"}