[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 master#c8865d8e195813ade6b84434ac9f8850e7112d1a for pr-61629 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-4/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "build" "--frozen"` [INFO] [stdout] 0bd52576e9f59dcb6e611a74caf9030c290a95c2956229857ed2865a3af28544 [INFO] running `"docker" "start" "-a" "0bd52576e9f59dcb6e611a74caf9030c290a95c2956229857ed2865a3af28544"` [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 0.77s [INFO] running `"docker" "inspect" "0bd52576e9f59dcb6e611a74caf9030c290a95c2956229857ed2865a3af28544"` [INFO] running `"docker" "rm" "-f" "0bd52576e9f59dcb6e611a74caf9030c290a95c2956229857ed2865a3af28544"` [INFO] [stdout] 0bd52576e9f59dcb6e611a74caf9030c290a95c2956229857ed2865a3af28544 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-4/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen" "--no-run"` [INFO] [stdout] f13a1f1bbd251eec3826d356ce9aca2f457c2a8c1a6d2958378773c277c1b80e [INFO] running `"docker" "start" "-a" "f13a1f1bbd251eec3826d356ce9aca2f457c2a8c1a6d2958378773c277c1b80e"` [INFO] [stderr] Compiling libmcs v0.1.0 (/opt/crater/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.70s [INFO] running `"docker" "inspect" "f13a1f1bbd251eec3826d356ce9aca2f457c2a8c1a6d2958378773c277c1b80e"` [INFO] running `"docker" "rm" "-f" "f13a1f1bbd251eec3826d356ce9aca2f457c2a8c1a6d2958378773c277c1b80e"` [INFO] [stdout] f13a1f1bbd251eec3826d356ce9aca2f457c2a8c1a6d2958378773c277c1b80e [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-4/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen"` [INFO] [stdout] c3c53d19b83ba77df49b3760e4f964bb143011839890f5fad95eca804a5b333e [INFO] running `"docker" "start" "-a" "c3c53d19b83ba77df49b3760e4f964bb143011839890f5fad95eca804a5b333e"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running /opt/crater/target/debug/deps/libmcs-9ca7bce8a61c9df3 [INFO] [stderr] thread '' panicked at 'explicit panic', src/mcs.rs:465:13 [INFO] [stdout] [INFO] [stderr] stack backtrace: [INFO] [stdout] running 12 tests [INFO] [stderr] thread '' panicked at 'assertion failed: `(left == right)` [INFO] [stdout] test mcs::tests::test_into_inner_drop ... ok [INFO] [stderr] left: `1`, [INFO] [stdout] test mcs::tests::test_get_mut ... ok [INFO] [stderr] right: `2`', src/mcs.rs:429:13 [INFO] [stdout] test mcs::tests::smoke ... ok [INFO] [stderr] thread '' panicked at 'test panic in inner thread to poison mutex', src/mcs.rs:388:13 [INFO] [stdout] test mcs::tests::test_mutex_unsized ... 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_into_inner ... ok [INFO] [stdout] test mcs::tests::test_mutex_arc_nested ... ok [INFO] [stdout] test mcs::tests::try_lock ... ok [INFO] [stdout] test mcs::tests::lots_and_lots ... ok [INFO] [stderr] 0: 0x55d85df55a8b - backtrace::backtrace::libunwind::trace::hcbf63b8d794b15f4 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x55d85df55a8b - backtrace::backtrace::trace_unsynchronized::h681e1cb201a9972d [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x55d85df55a8b - std::sys_common::backtrace::_print::hd27175ce39811176 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x55d85df55a8b - std::sys_common::backtrace::print::h117e2eebf9a1e122 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x55d85df55a8b - std::panicking::default_hook::{{closure}}::h6369b988ee675335 [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 5: 0x55d85df5578c - std::panicking::default_hook::hfaefd2bea4c25f9e [INFO] [stderr] at src/libstd/panicking.rs:212 [INFO] [stderr] 6: 0x55d85df56200 - std::panicking::rust_panic_with_hook::h02c52718165ccced [INFO] [stderr] at src/libstd/panicking.rs:475 [INFO] [stderr] 7: 0x55d85def52c4 - std::panicking::begin_panic::h7731da4759c7c367 [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/panicking.rs:409 [INFO] [stderr] 8: 0x55d85dee469b - libmcs::mcs::tests::test_mutex_arc_access_in_unwind::{{closure}}::heb2ebaaac2a10937 [INFO] [stderr] at src/mcs.rs:465 [INFO] [stderr] 9: 0x55d85dee97c3 - std::sys_common::backtrace::__rust_begin_short_backtrace::h0b30ec3671a6ca6d [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/sys_common/backtrace.rs:77 [INFO] [stderr] 10: 0x55d85dee93ee - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::he1ff9d15d9c6782a [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/thread/mod.rs:470 [INFO] [stderr] 11: 0x55d85def8611 - as core::ops::function::FnOnce<()>>::call_once::h4ed930fb624c78ae [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/panic.rs:309 [INFO] [stderr] 12: 0x55d85def60b5 - std::panicking::try::do_call::h9170c2cd355f8240 [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/panicking.rs:294 [INFO] [stderr] 13: 0x55d85df58e1a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:85 [INFO] [stderr] 14: 0x55d85def5d61 - std::panicking::try::hebf83f54a32a8b5c [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/panicking.rs:273 [INFO] [stderr] 15: 0x55d85def9cb3 - std::panic::catch_unwind::hee77ddf851aeeee9 [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/panic.rs:388 [INFO] [stderr] 16: 0x55d85dee8596 - std::thread::Builder::spawn_unchecked::{{closure}}::h61a91678d6a2c204 [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/thread/mod.rs:469 [INFO] [stderr] 17: 0x55d85deebfa3 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hb84fe2662d2e1b4e [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libcore/ops/function.rs:231 [INFO] [stderr] 18: 0x55d85df4bb1f - as core::ops::function::FnOnce>::call_once::hc6099fbe1f2e9038 [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/liballoc/boxed.rs:746 [INFO] [stderr] 19: 0x55d85df584d0 - as core::ops::function::FnOnce>::call_once::h1b61db05dcd8ce54 [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/liballoc/boxed.rs:746 [INFO] [stderr] 20: 0x55d85df584d0 - std::sys_common::thread::start_thread::hd3ed9053e9fea488 [INFO] [stderr] at src/libstd/sys_common/thread.rs:13 [INFO] [stderr] 21: 0x55d85df584d0 - std::sys::unix::thread::Thread::new::thread_start::hc17e4e4c7ed2fc8f [INFO] [stderr] at src/libstd/sys/unix/thread.rs:79 [INFO] [stderr] 22: 0x7fa1d8cf94a4 - start_thread [INFO] [stderr] 23: 0x7fa1d8824d0f - __clone [INFO] [stderr] 24: 0x0 - [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x55d85df55a8b - backtrace::backtrace::libunwind::trace::hcbf63b8d794b15f4 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x55d85df55a8b - backtrace::backtrace::trace_unsynchronized::h681e1cb201a9972d [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x55d85df55a8b - std::sys_common::backtrace::_print::hd27175ce39811176 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x55d85df55a8b - std::sys_common::backtrace::print::h117e2eebf9a1e122 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x55d85df55a8b - std::panicking::default_hook::{{closure}}::h6369b988ee675335 [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 5: 0x55d85df5578c - std::panicking::default_hook::hfaefd2bea4c25f9e [INFO] [stderr] at src/libstd/panicking.rs:212 [INFO] [stderr] 6: 0x55d85df56200 - std::panicking::rust_panic_with_hook::h02c52718165ccced [INFO] [stderr] at src/libstd/panicking.rs:475 [INFO] [stderr] 7: 0x55d85df55d82 - std::panicking::continue_panic_fmt::h9e135674c1df51b4 [INFO] [stderr] at src/libstd/panicking.rs:382 [INFO] [stderr] 8: 0x55d85df55ccf - std::panicking::begin_panic_fmt::h7b7b130b87f3cbeb [INFO] [stderr] at src/libstd/panicking.rs:337 [INFO] [stderr] 9: 0x55d85dee3db5 - libmcs::mcs::tests::test_mutex_arc_poison::{{closure}}::h3ddfb5cfd3c313d4 [INFO] [stderr] at src/mcs.rs:429 [INFO] [stderr] 10: 0x55d85dee9833 - std::sys_common::backtrace::__rust_begin_short_backtrace::h93e0e05af25b3de0 [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/sys_common/backtrace.rs:77 [INFO] [stderr] 11: 0x55d85dee93be - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h7a4ed06a903b3c7d [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/thread/mod.rs:470 [INFO] [stderr] 12: 0x55d85def8661 - as core::ops::function::FnOnce<()>>::call_once::h60cf008ea2e68ce8 [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/panic.rs:309 [INFO] [stderr] 13: 0x55d85def5f85 - std::panicking::try::do_call::h49de707419ab803a [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/panicking.rs:294 [INFO] [stderr] 14: 0x55d85df58e1a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:85 [INFO] [stderr] 15: 0x55d85def5a21 - std::panicking::try::hcedeaeec398fd16b [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/panicking.rs:273 [INFO] [stderr] 16: 0x55d85def9c43 - std::panic::catch_unwind::ha1ffe02eab3acdb8 [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/panic.rs:388 [INFO] [stderr] 17: 0x55d85dee82a6 - std::thread::Builder::spawn_unchecked::{{closure}}::h3f9eea9c1236c4f7 [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/thread/mod.rs:469 [INFO] [stderr] 18: 0x55d85deebfc3 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hf82fa238ee8282c8 [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libcore/ops/function.rs:231 [INFO] [stderr] 19: 0x55d85df4bb1f - as core::ops::function::FnOnce>::call_once::hc6099fbe1f2e9038 [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/liballoc/boxed.rs:746 [INFO] [stderr] 20: 0x55d85df584d0 - as core::ops::function::FnOnce>::call_once::h1b61db05dcd8ce54 [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/liballoc/boxed.rs:746 [INFO] [stderr] 21: 0x55d85df584d0 - std::sys_common::thread::start_thread::hd3ed9053e9fea488 [INFO] [stderr] at src/libstd/sys_common/thread.rs:13 [INFO] [stderr] 22: 0x55d85df584d0 - std::sys::unix::thread::Thread::new::thread_start::hc17e4e4c7ed2fc8f [INFO] [stderr] at src/libstd/sys/unix/thread.rs:79 [INFO] [stderr] 23: 0x7fa1d8cf94a4 - start_thread [INFO] [stderr] 24: 0x7fa1d8824d0f - __clone [INFO] [stderr] 25: 0x0 - [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x55d85df55a8b - backtrace::backtrace::libunwind::trace::hcbf63b8d794b15f4 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x55d85df55a8b - backtrace::backtrace::trace_unsynchronized::h681e1cb201a9972d [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x55d85df55a8b - std::sys_common::backtrace::_print::hd27175ce39811176 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x55d85df55a8b - std::sys_common::backtrace::print::h117e2eebf9a1e122 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x55d85df55a8b - std::panicking::default_hook::{{closure}}::h6369b988ee675335 [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 5: 0x55d85df5578c - std::panicking::default_hook::hfaefd2bea4c25f9e [INFO] [stderr] at src/libstd/panicking.rs:212 [INFO] [stderr] 6: 0x55d85df56200 - std::panicking::rust_panic_with_hook::h02c52718165ccced [INFO] [stderr] at src/libstd/panicking.rs:475 [INFO] [stderr] 7: 0x55d85def52c4 - std::panicking::begin_panic::h7731da4759c7c367 [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/panicking.rs:409 [INFO] [stderr] 8: 0x55d85dee310a - libmcs::mcs::tests::test_into_inner_poison::{{closure}}::h4406bc8f8fe01d1e [INFO] [stderr] at src/mcs.rs:388 [INFO] [stderr] 9: 0x55d85dee9853 - std::sys_common::backtrace::__rust_begin_short_backtrace::h99d0519b515dc107 [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/sys_common/backtrace.rs:77 [INFO] [stderr] 10: 0x55d85dee93de - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::hd09ac275198a4be0 [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/thread/mod.rs:470 [INFO] [stderr] 11: 0x55d85def86a1 - as core::ops::function::FnOnce<()>>::call_once::h6b2c5ef9097205ed [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/panic.rs:309 [INFO] [stderr] 12: 0x55d85def6105 - std::panicking::try::do_call::hbb53964d3ce1e17c [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/panicking.rs:294 [INFO] [stderr] 13: 0x55d85df58e1a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:85 [INFO] [stderr] 14: 0x55d85def53a1 - std::panicking::try::h0100f0609fd38d70 [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/panicking.rs:273 [INFO] [stderr] 15: 0x55d85def9be3 - std::panic::catch_unwind::h78b17b79b16c3139 [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/panic.rs:388 [INFO] [stderr] 16: 0x55d85dee9176 - std::thread::Builder::spawn_unchecked::{{closure}}::hdb37774d3a51b87a [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/thread/mod.rs:469 [INFO] [stderr] 17: 0x55d85deebf63 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h780e960b9c1a42a2 [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libcore/ops/function.rs:231 [INFO] [stderr] 18: 0x55d85df4bb1f - as core::ops::function::FnOnce>::call_once::hc6099fbe1f2e9038 [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/liballoc/boxed.rs:746 [INFO] [stderr] 19: 0x55d85df584d0 - as core::ops::function::FnOnce>::call_once::h1b61db05dcd8ce54 [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/liballoc/boxed.rs:746 [INFO] [stderr] 20: 0x55d85df584d0 - std::sys_common::thread::start_thread::hd3ed9053e9fea488 [INFO] [stderr] at src/libstd/sys_common/thread.rs:13 [INFO] [stderr] 21: 0x55d85df584d0 - std::sys::unix::thread::Thread::new::thread_start::hc17e4e4c7ed2fc8f [INFO] [stderr] at src/libstd/sys/unix/thread.rs:79 [INFO] [stderr] 22: 0x7fa1d8cf94a4 - start_thread [INFO] [stderr] 23: 0x7fa1d8824d0f - __clone [INFO] [stderr] 24: 0x0 - [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x55d85df55a8b - backtrace::backtrace::libunwind::trace::hcbf63b8d794b15f4 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x55d85df55a8b - backtrace::backtrace::trace_unsynchronized::h681e1cb201a9972d [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x55d85df55a8b - std::sys_common::backtrace::_print::hd27175ce39811176 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x55d85df55a8b - std::sys_common::backtrace::print::h117e2eebf9a1e122 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x55d85df55a8b - std::panicking::default_hook::{{closure}}::h6369b988ee675335 [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 5: 0x55d85df5578c - std::panicking::default_hook::hfaefd2bea4c25f9e [INFO] [stderr] at src/libstd/panicking.rs:212 [INFO] [stderr] 6: 0x55d85df56200 - std::panicking::rust_panic_with_hook::h02c52718165ccced [INFO] [stderr] at src/libstd/panicking.rs:475 [INFO] [stderr] 7: 0x55d85def52c4 - std::panicking::begin_panic::h7731da4759c7c367 [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/panicking.rs:409 [INFO] [stderr] 8: 0x55d85dee392a - libmcs::mcs::tests::test_get_mut_poison::{{closure}}::h85dbcb14c4022f21 [INFO] [stderr] at src/mcs.rs:411 [INFO] [stderr] 9: 0x55d85dee97e3 - std::sys_common::backtrace::__rust_begin_short_backtrace::h5c28e8fd67c00079 [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/sys_common/backtrace.rs:77 [INFO] [stderr] 10: 0x55d85dee93ce - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::hcf2f1cc4b673212c [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/thread/mod.rs:470 [INFO] [stderr] 11: 0x55d85def8681 - as core::ops::function::FnOnce<()>>::call_once::h690785297eca9f08 [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/panic.rs:309 [INFO] [stderr] 12: 0x55d85def5f35 - std::panicking::try::do_call::h160486b87ee63396 [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/panicking.rs:294 [INFO] [stderr] 13: 0x55d85df58e1a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:85 [INFO] [stderr] 14: 0x55d85def56e1 - std::panicking::try::h291eeb68c9374c47 [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/panicking.rs:273 [INFO] [stderr] 15: 0x55d85def9c13 - std::panic::catch_unwind::h7d556e64f97a58f8 [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/panic.rs:388 [INFO] [stderr] 16: 0x55d85dee8e86 - std::thread::Builder::spawn_unchecked::{{closure}}::hbf8ea402380ede8f [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/thread/mod.rs:469 [INFO] [stderr] 17: 0x55d85deebef3 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h4f2da21ad7508afa [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libcore/ops/function.rs:231 [INFO] [stderr] 18: 0x55d85df4bb1f - as core::ops::function::FnOnce>::call_once::hc6099fbe1f2e9038 [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/liballoc/boxed.rs:746 [INFO] [stderr] 19: 0x55d85df584d0 - as core::ops::function::FnOnce>::call_once::h1b61db05dcd8ce54 [INFO] [stderr] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/liballoc/boxed.rs:746 [INFO] [stderr] 20: 0x55d85df584d0 - std::sys_common::thread::start_thread::hd3ed9053e9fea488 [INFO] [stderr] at src/libstd/sys_common/thread.rs:13 [INFO] [stderr] 21: 0x55d85df584d0 - std::sys::unix::thread::Thread::new::thread_start::hc17e4e4c7ed2fc8f [INFO] [stderr] at src/libstd/sys/unix/thread.rs:79 [INFO] [stderr] 22: 0x7fa1d8cf94a4 - start_thread [INFO] [stderr] 23: 0x7fa1d8824d0f - __clone [INFO] [stderr] 24: 0x0 - [INFO] [stdout] test mcs::tests::test_get_mut_poison ... ok [INFO] [stdout] test mcs::tests::test_mutex_arc_poison ... ok [INFO] [stdout] test mcs::tests::test_into_inner_poison ... ok [INFO] [stdout] test mcs::tests::test_mutex_arc_access_in_unwind ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Doc-tests libmcs [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test src/mcs.rs - mcs::Mutex (line 79) ... FAILED [INFO] [stdout] test src/mcs.rs - mcs::Mutex::new (line 138) ... ok [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" "c3c53d19b83ba77df49b3760e4f964bb143011839890f5fad95eca804a5b333e"` [INFO] running `"docker" "rm" "-f" "c3c53d19b83ba77df49b3760e4f964bb143011839890f5fad95eca804a5b333e"` [INFO] [stdout] c3c53d19b83ba77df49b3760e4f964bb143011839890f5fad95eca804a5b333e