[INFO] fetching crate libmcs 0.1.0... [INFO] extracting crate libmcs 0.1.0 into work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/libmcs/0.1.0 [INFO] extracting crate libmcs 0.1.0 into work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/libmcs/0.1.0 [INFO] validating manifest of libmcs-0.1.0 on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of libmcs-0.1.0 on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing libmcs-0.1.0 [INFO] finished frobbing libmcs-0.1.0 [INFO] frobbed toml for libmcs-0.1.0 written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/libmcs/0.1.0/Cargo.toml [INFO] started frobbing libmcs-0.1.0 [INFO] finished frobbing libmcs-0.1.0 [INFO] frobbed toml for libmcs-0.1.0 written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/libmcs/0.1.0/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache lock [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing libmcs-0.1.0 against try#e212b7d492c96d3837691ba29d32d5f468933fb8 for pr-61629 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-5/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/libmcs/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "build" "--frozen"` [INFO] [stdout] bf345f0686b1a532c6a7174755d694c16d5f7942e4b86a10801bf72e30b41a43 [INFO] running `"docker" "start" "-a" "bf345f0686b1a532c6a7174755d694c16d5f7942e4b86a10801bf72e30b41a43"` [INFO] [stderr] Blocking waiting for file lock on package cache lock [INFO] [stderr] Blocking waiting for file lock on package cache lock [INFO] [stderr] Compiling libmcs v0.1.0 (/opt/crater/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.39s [INFO] running `"docker" "inspect" "bf345f0686b1a532c6a7174755d694c16d5f7942e4b86a10801bf72e30b41a43"` [INFO] running `"docker" "rm" "-f" "bf345f0686b1a532c6a7174755d694c16d5f7942e4b86a10801bf72e30b41a43"` [INFO] [stdout] bf345f0686b1a532c6a7174755d694c16d5f7942e4b86a10801bf72e30b41a43 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-5/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/libmcs/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen" "--no-run"` [INFO] [stdout] 127ccc9042d6095718877796f674792ff43677b8ceecd9db3ab075835a22bccc [INFO] running `"docker" "start" "-a" "127ccc9042d6095718877796f674792ff43677b8ceecd9db3ab075835a22bccc"` [INFO] [stderr] Compiling libmcs v0.1.0 (/opt/crater/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.11s [INFO] running `"docker" "inspect" "127ccc9042d6095718877796f674792ff43677b8ceecd9db3ab075835a22bccc"` [INFO] running `"docker" "rm" "-f" "127ccc9042d6095718877796f674792ff43677b8ceecd9db3ab075835a22bccc"` [INFO] [stdout] 127ccc9042d6095718877796f674792ff43677b8ceecd9db3ab075835a22bccc [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-5/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/libmcs/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen"` [INFO] [stdout] e8eb5d0969a55862164d5b860418db5253dcd522135814563534d47f99171b70 [INFO] running `"docker" "start" "-a" "e8eb5d0969a55862164d5b860418db5253dcd522135814563534d47f99171b70"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running /opt/crater/target/debug/deps/libmcs-6f36b5043113b3f8 [INFO] [stdout] [INFO] [stderr] thread '' panicked at 'explicit panic', src/mcs.rs:465:13 [INFO] [stdout] running 12 tests [INFO] [stderr] stack backtrace: [INFO] [stdout] test mcs::tests::test_into_inner ... ok [INFO] [stderr] thread '' panicked at 'test panic in inner thread to poison mutex', src/mcs.rs:411:13 [INFO] [stdout] test mcs::tests::test_get_mut ... ok [INFO] [stderr] thread '' panicked at 'test panic in inner thread to poison mutex', src/mcs.rs:388:13 [INFO] [stdout] test mcs::tests::smoke ... ok [INFO] [stdout] test mcs::tests::test_into_inner_drop ... ok [INFO] [stderr] thread '' panicked at 'assertion failed: `(left == right)` [INFO] [stdout] test mcs::tests::test_mutex_unsized ... ok [INFO] [stderr] left: `1`, [INFO] [stdout] test mcs::tests::test_mutex_arc_nested ... ok [INFO] [stderr] right: `2`', src/mcs.rs:429:13 [INFO] [stdout] test mcs::tests::lots_and_lots ... ok [INFO] [stdout] test mcs::tests::try_lock ... ok [INFO] [stderr] 0: 0x55eb91f94a8b - backtrace::backtrace::libunwind::trace::h98ebe34dc63b52e3 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x55eb91f94a8b - backtrace::backtrace::trace_unsynchronized::hd041341a38fdc1ca [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x55eb91f94a8b - std::sys_common::backtrace::_print::hc8c584aa09df5c15 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x55eb91f94a8b - std::sys_common::backtrace::print::h4828f56ae571c1ad [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x55eb91f94a8b - std::panicking::default_hook::{{closure}}::h69fce690c9f4b3d3 [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 5: 0x55eb91f9478c - std::panicking::default_hook::h231e0e11400caad4 [INFO] [stderr] at src/libstd/panicking.rs:212 [INFO] [stderr] 6: 0x55eb91f95200 - std::panicking::rust_panic_with_hook::h8c0d039880f491f2 [INFO] [stderr] at src/libstd/panicking.rs:475 [INFO] [stderr] 7: 0x55eb91f342c4 - std::panicking::begin_panic::h27452227821d1a68 [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/panicking.rs:409 [INFO] [stderr] 8: 0x55eb91f2369b - libmcs::mcs::tests::test_mutex_arc_access_in_unwind::{{closure}}::h41edcda49d7bf519 [INFO] [stderr] at src/mcs.rs:465 [INFO] [stderr] 9: 0x55eb91f28863 - std::sys_common::backtrace::__rust_begin_short_backtrace::hddbc8199082d43d7 [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/sys_common/backtrace.rs:77 [INFO] [stderr] 10: 0x55eb91f2835e - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h2eb1e334076ffbbc [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/thread/mod.rs:470 [INFO] [stderr] 11: 0x55eb91f37661 - as core::ops::function::FnOnce<()>>::call_once::h7a51c81a128482a3 [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/panic.rs:309 [INFO] [stderr] 12: 0x55eb91f34ec5 - std::panicking::try::do_call::h2e34a8e506a16980 [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/panicking.rs:294 [INFO] [stderr] 13: 0x55eb91f97e1a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:85 [INFO] [stderr] 14: 0x55eb91f34a21 - std::panicking::try::ha4ebf56edfa57f5b [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/panicking.rs:273 [INFO] [stderr] 15: 0x55eb91f38bd3 - std::panic::catch_unwind::h8e08ab277c08ee7e [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/panic.rs:388 [INFO] [stderr] 16: 0x55eb91f26fa6 - std::thread::Builder::spawn_unchecked::{{closure}}::h08b5f10f1125ffd7 [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/thread/mod.rs:469 [INFO] [stderr] 17: 0x55eb91f2afc3 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hfca8714ab2d3ec17 [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libcore/ops/function.rs:231 [INFO] [stderr] 18: 0x55eb91f8ab1f - as core::ops::function::FnOnce>::call_once::h146d737fe1c8556c [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/liballoc/boxed.rs:746 [INFO] [stderr] 19: 0x55eb91f974d0 - as core::ops::function::FnOnce>::call_once::h44ec2de830c4be09 [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/liballoc/boxed.rs:746 [INFO] [stderr] 20: 0x55eb91f974d0 - std::sys_common::thread::start_thread::hed7ed434f3e17f57 [INFO] [stderr] at src/libstd/sys_common/thread.rs:13 [INFO] [stderr] 21: 0x55eb91f974d0 - std::sys::unix::thread::Thread::new::thread_start::h62b89907378dc35b [INFO] [stderr] at src/libstd/sys/unix/thread.rs:79 [INFO] [stderr] 22: 0x7fe18cc9a4a4 - start_thread [INFO] [stderr] 23: 0x7fe18c7c5d0f - __clone [INFO] [stderr] 24: 0x0 - [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x55eb91f94a8b - backtrace::backtrace::libunwind::trace::h98ebe34dc63b52e3 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x55eb91f94a8b - backtrace::backtrace::trace_unsynchronized::hd041341a38fdc1ca [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x55eb91f94a8b - std::sys_common::backtrace::_print::hc8c584aa09df5c15 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x55eb91f94a8b - std::sys_common::backtrace::print::h4828f56ae571c1ad [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x55eb91f94a8b - std::panicking::default_hook::{{closure}}::h69fce690c9f4b3d3 [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 5: 0x55eb91f9478c - std::panicking::default_hook::h231e0e11400caad4 [INFO] [stderr] at src/libstd/panicking.rs:212 [INFO] [stderr] 6: 0x55eb91f95200 - std::panicking::rust_panic_with_hook::h8c0d039880f491f2 [INFO] [stderr] at src/libstd/panicking.rs:475 [INFO] [stderr] 7: 0x55eb91f342c4 - std::panicking::begin_panic::h27452227821d1a68 [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/panicking.rs:409 [INFO] [stderr] 8: 0x55eb91f2292a - libmcs::mcs::tests::test_get_mut_poison::{{closure}}::h0371614d00e335b9 [INFO] [stderr] at src/mcs.rs:411 [INFO] [stderr] 9: 0x55eb91f28843 - std::sys_common::backtrace::__rust_begin_short_backtrace::hbf9334208479c4d0 [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/sys_common/backtrace.rs:77 [INFO] [stderr] 10: 0x55eb91f283be - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h9dec600b569b6a05 [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/thread/mod.rs:470 [INFO] [stderr] 11: 0x55eb91f37611 - as core::ops::function::FnOnce<()>>::call_once::h29026d619fdb7611 [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/panic.rs:309 [INFO] [stderr] 12: 0x55eb91f35095 - std::panicking::try::do_call::hdbed405ddc5f92e6 [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/panicking.rs:294 [INFO] [stderr] 13: 0x55eb91f97e1a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:85 [INFO] [stderr] 14: 0x55eb91f34561 - std::panicking::try::h19163fe0349fa114 [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/panicking.rs:273 [INFO] [stderr] 15: 0x55eb91f38ba3 - std::panic::catch_unwind::h55c6ca59b15a9890 [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/panic.rs:388 [INFO] [stderr] 16: 0x55eb91f27586 - std::thread::Builder::spawn_unchecked::{{closure}}::h69856ea4948b37b7 [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/thread/mod.rs:469 [INFO] [stderr] 17: 0x55eb91f2aed3 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h08526dfdc9861281 [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libcore/ops/function.rs:231 [INFO] [stderr] 18: 0x55eb91f8ab1f - as core::ops::function::FnOnce>::call_once::h146d737fe1c8556c [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/liballoc/boxed.rs:746 [INFO] [stderr] 19: 0x55eb91f974d0 - as core::ops::function::FnOnce>::call_once::h44ec2de830c4be09 [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/liballoc/boxed.rs:746 [INFO] [stderr] 20: 0x55eb91f974d0 - std::sys_common::thread::start_thread::hed7ed434f3e17f57 [INFO] [stderr] at src/libstd/sys_common/thread.rs:13 [INFO] [stderr] 21: 0x55eb91f974d0 - std::sys::unix::thread::Thread::new::thread_start::h62b89907378dc35b [INFO] [stderr] at src/libstd/sys/unix/thread.rs:79 [INFO] [stderr] 22: 0x7fe18cc9a4a4 - start_thread [INFO] [stderr] 23: 0x7fe18c7c5d0f - __clone [INFO] [stderr] 24: 0x0 - [INFO] [stderr] stack backtrace: [INFO] [stdout] test mcs::tests::test_get_mut_poison ... ok [INFO] [stderr] 0: 0x55eb91f94a8b - backtrace::backtrace::libunwind::trace::h98ebe34dc63b52e3 [INFO] [stdout] test mcs::tests::test_into_inner_poison ... ok [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stdout] test mcs::tests::test_mutex_arc_access_in_unwind ... ok [INFO] [stderr] 1: 0x55eb91f94a8b - backtrace::backtrace::trace_unsynchronized::hd041341a38fdc1ca [INFO] [stdout] test mcs::tests::test_mutex_arc_poison ... ok [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stdout] [INFO] [stderr] 2: 0x55eb91f94a8b - std::sys_common::backtrace::_print::hc8c584aa09df5c15 [INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stdout] [INFO] [stderr] 3: 0x55eb91f94a8b - std::sys_common::backtrace::print::h4828f56ae571c1ad [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x55eb91f94a8b - std::panicking::default_hook::{{closure}}::h69fce690c9f4b3d3 [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 5: 0x55eb91f9478c - std::panicking::default_hook::h231e0e11400caad4 [INFO] [stderr] at src/libstd/panicking.rs:212 [INFO] [stderr] 6: 0x55eb91f95200 - std::panicking::rust_panic_with_hook::h8c0d039880f491f2 [INFO] [stderr] at src/libstd/panicking.rs:475 [INFO] [stderr] 7: 0x55eb91f342c4 - std::panicking::begin_panic::h27452227821d1a68 [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/panicking.rs:409 [INFO] [stderr] 8: 0x55eb91f2210a - libmcs::mcs::tests::test_into_inner_poison::{{closure}}::hae7f2619ccb54553 [INFO] [stderr] at src/mcs.rs:388 [INFO] [stderr] 9: 0x55eb91f287f3 - std::sys_common::backtrace::__rust_begin_short_backtrace::hacdb4b469d23b49c [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/sys_common/backtrace.rs:77 [INFO] [stderr] 10: 0x55eb91f283ae - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h69c8f5c6087d5983 [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/thread/mod.rs:470 [INFO] [stderr] 11: 0x55eb91f376d1 - as core::ops::function::FnOnce<()>>::call_once::he92497897ca91896 [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/panic.rs:309 [INFO] [stderr] 12: 0x55eb91f34f15 - std::panicking::try::do_call::h445de9eea6541b56 [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/panicking.rs:294 [INFO] [stderr] 13: 0x55eb91f97e1a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:85 [INFO] [stderr] 14: 0x55eb91f346e1 - std::panicking::try::h51880eba4e239f3e [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/panicking.rs:273 [INFO] [stderr] 15: 0x55eb91f38cb3 - std::panic::catch_unwind::hff2ea372b4d13e3d [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/panic.rs:388 [INFO] [stderr] 16: 0x55eb91f27876 - std::thread::Builder::spawn_unchecked::{{closure}}::hbf88ab8e1e7b67ee [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/thread/mod.rs:469 [INFO] [stderr] 17: 0x55eb91f2af83 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hbe32518aa7f1654c [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libcore/ops/function.rs:231 [INFO] [stderr] 18: 0x55eb91f8ab1f - as core::ops::function::FnOnce>::call_once::h146d737fe1c8556c [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/liballoc/boxed.rs:746 [INFO] [stderr] 19: 0x55eb91f974d0 - as core::ops::function::FnOnce>::call_once::h44ec2de830c4be09 [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/liballoc/boxed.rs:746 [INFO] [stderr] 20: 0x55eb91f974d0 - std::sys_common::thread::start_thread::hed7ed434f3e17f57 [INFO] [stderr] at src/libstd/sys_common/thread.rs:13 [INFO] [stderr] 21: 0x55eb91f974d0 - std::sys::unix::thread::Thread::new::thread_start::h62b89907378dc35b [INFO] [stderr] at src/libstd/sys/unix/thread.rs:79 [INFO] [stderr] 22: 0x7fe18cc9a4a4 - start_thread [INFO] [stderr] 23: 0x7fe18c7c5d0f - __clone [INFO] [stderr] 24: 0x0 - [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x55eb91f94a8b - backtrace::backtrace::libunwind::trace::h98ebe34dc63b52e3 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x55eb91f94a8b - backtrace::backtrace::trace_unsynchronized::hd041341a38fdc1ca [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x55eb91f94a8b - std::sys_common::backtrace::_print::hc8c584aa09df5c15 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x55eb91f94a8b - std::sys_common::backtrace::print::h4828f56ae571c1ad [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x55eb91f94a8b - std::panicking::default_hook::{{closure}}::h69fce690c9f4b3d3 [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 5: 0x55eb91f9478c - std::panicking::default_hook::h231e0e11400caad4 [INFO] [stderr] at src/libstd/panicking.rs:212 [INFO] [stderr] 6: 0x55eb91f95200 - std::panicking::rust_panic_with_hook::h8c0d039880f491f2 [INFO] [stderr] at src/libstd/panicking.rs:475 [INFO] [stderr] 7: 0x55eb91f94d82 - std::panicking::continue_panic_fmt::hd71af4da4e8103ab [INFO] [stderr] at src/libstd/panicking.rs:382 [INFO] [stderr] 8: 0x55eb91f94ccf - std::panicking::begin_panic_fmt::h6fa6b99240aafbc9 [INFO] [stderr] at src/libstd/panicking.rs:337 [INFO] [stderr] 9: 0x55eb91f22db5 - libmcs::mcs::tests::test_mutex_arc_poison::{{closure}}::h95118cc59ea0c59a [INFO] [stderr] at src/mcs.rs:429 [INFO] [stderr] 10: 0x55eb91f28883 - std::sys_common::backtrace::__rust_begin_short_backtrace::hec8b34dbb0360738 [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/sys_common/backtrace.rs:77 [INFO] [stderr] 11: 0x55eb91f2839e - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h5f237a00ffcaac91 [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/thread/mod.rs:470 [INFO] [stderr] 12: 0x55eb91f37681 - as core::ops::function::FnOnce<()>>::call_once::hbc87091418ad078f [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/panic.rs:309 [INFO] [stderr] 13: 0x55eb91f34fd5 - std::panicking::try::do_call::h9fdfc36e3da52dd2 [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/panicking.rs:294 [INFO] [stderr] 14: 0x55eb91f97e1a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:85 [INFO] [stderr] 15: 0x55eb91f34d61 - std::panicking::try::hf996447cfb1490e6 [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/panicking.rs:273 [INFO] [stderr] 16: 0x55eb91f38c43 - std::panic::catch_unwind::hbad6d5a4b51fb067 [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/panic.rs:388 [INFO] [stderr] 17: 0x55eb91f27296 - std::thread::Builder::spawn_unchecked::{{closure}}::h50dca052903b1508 [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/thread/mod.rs:469 [INFO] [stderr] 18: 0x55eb91f2af43 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h502d74253c486f0b [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libcore/ops/function.rs:231 [INFO] [stderr] 19: 0x55eb91f8ab1f - as core::ops::function::FnOnce>::call_once::h146d737fe1c8556c [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/liballoc/boxed.rs:746 [INFO] [stderr] 20: 0x55eb91f974d0 - as core::ops::function::FnOnce>::call_once::h44ec2de830c4be09 [INFO] [stderr] at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/liballoc/boxed.rs:746 [INFO] [stderr] 21: 0x55eb91f974d0 - std::sys_common::thread::start_thread::hed7ed434f3e17f57 [INFO] [stderr] at src/libstd/sys_common/thread.rs:13 [INFO] [stderr] 22: 0x55eb91f974d0 - std::sys::unix::thread::Thread::new::thread_start::h62b89907378dc35b [INFO] [stderr] at src/libstd/sys/unix/thread.rs:79 [INFO] [stderr] 23: 0x7fe18cc9a4a4 - start_thread [INFO] [stderr] 24: 0x7fe18c7c5d0f - __clone [INFO] [stderr] 25: 0x0 - [INFO] [stderr] Doc-tests libmcs [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test src/mcs.rs - mcs::Mutex::new (line 138) ... ok [INFO] [stdout] test src/mcs.rs - mcs::Mutex (line 79) ... FAILED [INFO] [stdout] test src/mcs.rs - mcs::Mutex (line 37) ... ok [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/mcs.rs - mcs::Mutex (line 79) stdout ---- [INFO] [stdout] error[E0252]: the name `Mutex` is defined multiple times [INFO] [stdout] --> src/mcs.rs:84:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::sync::{Arc, Mutex}; [INFO] [stdout] | ----- previous import of the type `Mutex` here [INFO] [stdout] ... [INFO] [stdout] 7 | use libmcs::Mutex; [INFO] [stdout] | ^^^^^^^^^^^^^ `Mutex` reimported here [INFO] [stdout] | [INFO] [stdout] = note: `Mutex` must be defined only once in the type namespace of this block [INFO] [stdout] help: you can use `as` to change the binding name of the import [INFO] [stdout] | [INFO] [stdout] 7 | use libmcs::Mutex as OtherMutex; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0252`. [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] src/mcs.rs - mcs::Mutex (line 79) [INFO] [stdout] [INFO] [stdout] test result: FAILED. 2 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--doc' [INFO] running `"docker" "inspect" "e8eb5d0969a55862164d5b860418db5253dcd522135814563534d47f99171b70"` [INFO] running `"docker" "rm" "-f" "e8eb5d0969a55862164d5b860418db5253dcd522135814563534d47f99171b70"` [INFO] [stdout] e8eb5d0969a55862164d5b860418db5253dcd522135814563534d47f99171b70