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tests/ui/allocator/no_std-*, tests/ui/extern-flag/*force-extern, tests/ui/meta/no_std-* fail when bootstrapping stage 2 #122263

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intelfx opened this issue Mar 10, 2024 · 1 comment
Open

tests/ui/allocator/no_std-*, tests/ui/extern-flag/*force-extern, tests/ui/meta/no_std-* fail when bootstrapping stage 2 #122263

intelfx opened this issue Mar 10, 2024 · 1 comment
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A-testsuite Area: The testsuite used to check the correctness of rustc C-bug Category: This is a bug. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.

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@intelfx
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intelfx commented Mar 10, 2024

When bootstrapping rust 1.76.0 for distribution (build and test stage 2), several tests fail with output similar to #108767:

failures:
    [ui] tests/ui/allocator/no_std-alloc-error-handler-custom.rs
    [ui] tests/ui/allocator/no_std-alloc-error-handler-default.rs
    [ui] tests/ui/extern-flag/force-extern.rs
    [ui] tests/ui/extern-flag/no-force-extern.rs
    [ui] tests/ui/extern-flag/redundant-force-extern.rs
    [ui] tests/ui/meta/no_std-extern-libc.rs

Test invocation:

export RUST_BACKTRACE=1
python ./x.py test -j "$(nproc)" --no-doc --no-fail-fast \
  --stage 2 \
  --target 'x86_64-unknown-linux-gnu' \
  tests/codegen \
  tests/codegen-units \
  tests/incremental \
  tests/mir-opt \
  tests/pretty \
  tests/run-make \
  tests/run-make-fulldeps \
  tests/ui \
  tests/ui-fulldeps \
  --skip tests/run-make/long-linker-command-lines \
  --skip tests/ui/sanitize \
  --skip tests/ui/issues/issue-21763.rs \
config.toml 
profile = "user"
change-id = 118703

[llvm]
link-shared = true

[build]
# When compiling from source, you almost always want a full stage 2 build,
# which has all the latest optimizations from nightly.
build-stage = 2
test-stage = 2
doc-stage = 2
target = [
  "x86_64-unknown-linux-gnu",
  "i686-unknown-linux-gnu",
  "x86_64-unknown-linux-musl",
  "wasm32-unknown-unknown",
  "wasm32-wasi",
]
cargo = "/usr/bin/cargo"
rustc = "/usr/bin/rustc"
rustfmt = "/usr/bin/rustfmt"
locked-deps = true
vendor = true
# When compiling from source, you usually want all tools.
# extended = true
tools = [
  "cargo",
  "clippy",
  "rustdoc",
  "rustfmt",
  "rust-analyzer-proc-macro-srv",
  "analysis",
  "src",
  "rust-demangler",
]
sanitizers = true
profiler = true

# Generating docs fails with the wasm32-* targets
docs = false

[install]
prefix = "/usr"

[rust]
debuginfo-level-std = 2
channel = "stable"
description = "Arch Linux rust 1:1.76.0-2"
rpath = false
backtrace-on-ice = true
jemalloc = true

#optimize = 3
#lto = "fat"
use-lld = true

# Causes "error: --remap-path-prefix must contain '=' between FROM and TO"
# even after creating the missing ~/.cargo/registry/src dir.
# https://github.com/rust-lang/rust/issues/117885
remap-debuginfo = false

# LLVM crashes when passing an object through ThinLTO twice.  This is triggered
# when using rust code in cross-language LTO if libstd was built using ThinLTO.
# http://blog.llvm.org/2019/09/closing-gap-cross-language-lto-between.html
# https://github.com/rust-lang/rust/issues/54872
#codegen-units = 1
#codegen-units-std = 1

# musl target produces warnings
deny-warnings = false

[dist]
compression-formats = ["gz"]

[target.x86_64-unknown-linux-gnu]
cc = "/usr/bin/gcc"
cxx = "/usr/bin/g++"
ar = "/usr/bin/gcc-ar"
ranlib = "/usr/bin/gcc-ranlib"
llvm-config = "/usr/bin/llvm-config"

[target.i686-unknown-linux-gnu]
cc = "/usr/bin/gcc"
cxx = "/usr/bin/g++"
ar = "/usr/bin/gcc-ar"
ranlib = "/usr/bin/gcc-ranlib"

[target.x86_64-unknown-linux-musl]
sanitizers = false
musl-root = "/usr/lib/musl"

[target.wasm32-unknown-unknown]
sanitizers = false
profiler = false

[target.wasm32-wasi]
sanitizers = false
profiler = false
wasi-root = "/usr/share/wasi-sysroot"
Output of the failing tests 
---- [ui] tests/ui/allocator/no_std-alloc-error-handler-custom.rs stdout ----

error: test compilation failed although it shouldn't!
status: exit status: 1
command: RUSTC_ICE="0" "/build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/build/rust/src/rustc-1.76.0-src/tests/ui/allocator/no_std-alloc-error-handler-custom.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=/build/.cargo" "--sysroot" "/build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "-O" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "-C" "prefer-dynamic" "-o" "/build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/test/ui/allocator/no_std-alloc-error-handler-custom/a" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-Clink-arg=-fuse-ld=lld" "-Clink-arg=-Wl,--threads=1" "-L" "/build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/test/ui/allocator/no_std-alloc-error-handler-custom/auxiliary" "-C" "panic=abort"
stdout: none
--- stderr -------------------------------
error[E0464]: multiple candidates for `rmeta` dependency `libc` found
  --> /build/rust/src/rustc-1.76.0-src/tests/ui/allocator/no_std-alloc-error-handler-custom.rs:16:1
   |
LL | extern crate libc;
   | ^^^^^^^^^^^^^^^^^^
   |
   = note: candidate #1: /build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-0f4b0a7025d9b441.rmeta
   = note: candidate #2: /build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-cb41d8ba0394dce7.rlib

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0464`.
------------------------------------------


---- [ui] tests/ui/allocator/no_std-alloc-error-handler-default.rs stdout ----

error: test compilation failed although it shouldn't!
status: exit status: 1
command: RUSTC_ICE="0" "/build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/build/rust/src/rustc-1.76.0-src/tests/ui/allocator/no_std-alloc-error-handler-default.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=/build/.cargo" "--sysroot" "/build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "-O" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "-C" "prefer-dynamic" "-o" "/build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/test/ui/allocator/no_std-alloc-error-handler-default/a" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-Clink-arg=-fuse-ld=lld" "-Clink-arg=-Wl,--threads=1" "-L" "/build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/test/ui/allocator/no_std-alloc-error-handler-default/auxiliary" "-C" "panic=abort"
stdout: none
--- stderr -------------------------------
error[E0464]: multiple candidates for `rmeta` dependency `libc` found
  --> /build/rust/src/rustc-1.76.0-src/tests/ui/allocator/no_std-alloc-error-handler-default.rs:15:1
   |
LL | extern crate libc;
   | ^^^^^^^^^^^^^^^^^^
   |
   = note: candidate #1: /build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-0f4b0a7025d9b441.rmeta
   = note: candidate #2: /build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-cb41d8ba0394dce7.rlib

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0464`.
------------------------------------------


---- [ui] tests/ui/extern-flag/force-extern.rs stdout ----

error: auxiliary build of "/build/rust/src/rustc-1.76.0-src/tests/ui/extern-flag/auxiliary/panic_handler.rs" failed to compile:
status: exit status: 1
command: RUSTC_ICE="0" "/build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/build/rust/src/rustc-1.76.0-src/tests/ui/extern-flag/auxiliary/panic_handler.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=/build/.cargo" "--sysroot" "/build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/stage2" "--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" "-C" "prefer-dynamic" "--out-dir" "/build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/test/ui/extern-flag/force-extern/auxiliary" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-Clink-arg=-fuse-ld=lld" "-Clink-arg=-Wl,--threads=1" "--crate-type" "dylib" "-L" "/build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/test/ui/extern-flag/force-extern/auxiliary"
stdout: none
--- stderr -------------------------------
error[E0464]: multiple candidates for `rmeta` dependency `libc` found
  --> /build/rust/src/rustc-1.76.0-src/tests/ui/extern-flag/auxiliary/panic_handler.rs:9:1
   |
LL | extern crate libc;
   | ^^^^^^^^^^^^^^^^^^
   |
   = note: candidate #1: /build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-0f4b0a7025d9b441.rmeta
   = note: candidate #2: /build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-cb41d8ba0394dce7.rlib

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0464`.
------------------------------------------


---- [ui] tests/ui/extern-flag/no-force-extern.rs stdout ----

error: auxiliary build of "/build/rust/src/rustc-1.76.0-src/tests/ui/extern-flag/auxiliary/panic_handler.rs" failed to compile:
status: exit status: 1
command: RUSTC_ICE="0" "/build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/build/rust/src/rustc-1.76.0-src/tests/ui/extern-flag/auxiliary/panic_handler.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=/build/.cargo" "--sysroot" "/build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/stage2" "--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" "-C" "prefer-dynamic" "--out-dir" "/build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/test/ui/extern-flag/no-force-extern/auxiliary" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-Clink-arg=-fuse-ld=lld" "-Clink-arg=-Wl,--threads=1" "--crate-type" "dylib" "-L" "/build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/test/ui/extern-flag/no-force-extern/auxiliary"
stdout: none
--- stderr -------------------------------
error[E0464]: multiple candidates for `rmeta` dependency `libc` found
  --> /build/rust/src/rustc-1.76.0-src/tests/ui/extern-flag/auxiliary/panic_handler.rs:9:1
   |
LL | extern crate libc;
   | ^^^^^^^^^^^^^^^^^^
   |
   = note: candidate #1: /build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-0f4b0a7025d9b441.rmeta
   = note: candidate #2: /build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-cb41d8ba0394dce7.rlib

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0464`.
------------------------------------------


---- [ui] tests/ui/extern-flag/redundant-force-extern.rs stdout ----

error: auxiliary build of "/build/rust/src/rustc-1.76.0-src/tests/ui/extern-flag/auxiliary/panic_handler.rs" failed to compile:
status: exit status: 1
command: RUSTC_ICE="0" "/build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/build/rust/src/rustc-1.76.0-src/tests/ui/extern-flag/auxiliary/panic_handler.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=/build/.cargo" "--sysroot" "/build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/stage2" "--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" "-C" "prefer-dynamic" "--out-dir" "/build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/test/ui/extern-flag/redundant-force-extern/auxiliary" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-Clink-arg=-fuse-ld=lld" "-Clink-arg=-Wl,--threads=1" "--crate-type" "dylib" "-L" "/build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/test/ui/extern-flag/redundant-force-extern/auxiliary"
stdout: none
--- stderr -------------------------------
error[E0464]: multiple candidates for `rmeta` dependency `libc` found
  --> /build/rust/src/rustc-1.76.0-src/tests/ui/extern-flag/auxiliary/panic_handler.rs:9:1
   |
LL | extern crate libc;
   | ^^^^^^^^^^^^^^^^^^
   |
   = note: candidate #1: /build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-0f4b0a7025d9b441.rmeta
   = note: candidate #2: /build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-cb41d8ba0394dce7.rlib

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0464`.
------------------------------------------


---- [ui] tests/ui/meta/no_std-extern-libc.rs stdout ----

error: test compilation failed although it shouldn't!
status: exit status: 1
command: RUSTC_ICE="0" "/build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/build/rust/src/rustc-1.76.0-src/tests/ui/meta/no_std-extern-libc.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=/build/.cargo" "--sysroot" "/build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/stage2" "--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" "/build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/test/ui/meta/no_std-extern-libc" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-Clink-arg=-fuse-ld=lld" "-Clink-arg=-Wl,--threads=1" "-L" "/build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/test/ui/meta/no_std-extern-libc/auxiliary"
stdout: none
--- stderr -------------------------------
error[E0464]: multiple candidates for `rmeta` dependency `libc` found
  --> /build/rust/src/rustc-1.76.0-src/tests/ui/meta/no_std-extern-libc.rs:7:1
   |
LL | extern crate libc;
   | ^^^^^^^^^^^^^^^^^^
   |
   = note: candidate #1: /build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-0f4b0a7025d9b441.rmeta
   = note: candidate #2: /build/rust/src/rustc-1.76.0-src/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-cb41d8ba0394dce7.rlib

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0464`.
------------------------------------------

I tried this code:

<code>

I expected to see this happen: explanation

Instead, this happened: explanation

Meta

rustc --version --verbose:

<version>
Backtrace 

<backtrace>

@intelfx intelfx added the C-bug Category: This is a bug. label Mar 10, 2024
@rustbot rustbot added the needs-triage This issue may need triage. Remove it if it has been sufficiently triaged. label Mar 10, 2024
@intelfx intelfx changed the title tests/ui/allocator/no_std-*, tests/ui/extern-flag, tests/ui/meta/no_std-* fail when bootstrapping stage 2 tests/ui/allocator/no_std-*, tests/ui/extern-flag/*force-extern, tests/ui/meta/no_std-* fail when bootstrapping stage 2 Mar 10, 2024
@jieyouxu jieyouxu added T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. A-testsuite Area: The testsuite used to check the correctness of rustc and removed needs-triage This issue may need triage. Remove it if it has been sufficiently triaged. labels Mar 14, 2024
@intelfx
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intelfx commented Jun 30, 2024

Rust 1.79.0 adds another test into this pile:

  • tests/ui/derives/rustc-decodable-issue-123156
Output 
---- [ui] tests/ui/derives/rustc-decodable-issue-123156.rs stdout ----

error: test compilation failed although it shouldn't!
status: exit status: 1
command: env -u RUSTC_LOG_COLOR RUSTC_ICE="0" RUST_BACKTRACE="short" "/build/rust/src/rustc-1.79.0-src/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/build/rust/src/rustc-1.79.0-src/tests/ui/derives/rustc-decodable-issue-123156.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=/build/.cargo" "-Z" "ignore-directory-in-diagnostics-source-blocks=/build/rust/src/rustc-1.79.0-src/vendor" "--sysroot" "/build/rust/src/rustc-1.79.0-src/build/x86_64-unknown-linux-gnu/stage2" "--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" "/build/rust/src/rustc-1.79.0-src/build/x86_64-unknown-linux-gnu/test/ui/derives/rustc-decodable-issue-123156" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/build/rust/src/rustc-1.79.0-src/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-Clink-arg=-fuse-ld=lld" "-Clink-arg=-Wl,--threads=1" "-L" "/build/rust/src/rustc-1.79.0-src/build/x86_64-unknown-linux-gnu/test/ui/derives/rustc-decodable-issue-123156/auxiliary" "--edition=2021"
stdout: none
--- stderr -------------------------------
error[E0464]: multiple candidates for `rmeta` dependency `rustc_serialize` found
  --> /build/rust/src/rustc-1.79.0-src/tests/ui/derives/rustc-decodable-issue-123156.rs:8:1
   |
LL | extern crate rustc_serialize;
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: candidate #1: /build/rust/src/rustc-1.79.0-src/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_serialize-65ccfcad16ff2418.rmeta
   = note: candidate #2: /build/rust/src/rustc-1.79.0-src/build/x86_64-unknown-linux-gnu/test/ui/derives/rustc-decodable-issue-123156/auxiliary/librustc_serialize.so

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0464`.
Future incompatibility report: Future breakage diagnostic:
warning: use of unstable library feature 'rustc_encodable_decodable': derive macro for `rustc-serialize`; should not be used in new code
  --> /build/rust/src/rustc-1.79.0-src/tests/ui/derives/rustc-decodable-issue-123156.rs:10:10
   |
LL | #[derive(RustcDecodable)]
   |          ^^^^^^^^^^^^^^
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
   = note: for more information, see issue #64266 <https://github.com/rust-lang/rust/issues/64266>
------------------------------------------

@onur-ozkan onur-ozkan added the T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) label Sep 3, 2024
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A-testsuite Area: The testsuite used to check the correctness of rustc C-bug Category: This is a bug. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
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