Dec 15 05:04:35.475 INFO testing mcs-0.1.1 against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 15 05:04:35.475 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-1/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +bd47d6825bf4090517549d33cfef10d3300b4a75-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 15 05:04:35.816 INFO [stdout] ea54912143e6eb29386bdef1b670a04f74aff9c89ef565d697e9ec1196db953a
Dec 15 05:04:35.818 INFO running `"docker" "start" "-a" "ea54912143e6eb29386bdef1b670a04f74aff9c89ef565d697e9ec1196db953a"`
Dec 15 05:04:36.583 INFO [stderr] usermod: no changes
Dec 15 05:04:36.624 INFO [stderr]    Compiling mcs v0.1.1 (/source)
Dec 15 05:04:36.876 INFO [stderr] warning: unnecessary `unsafe` block
Dec 15 05:04:36.876 INFO [stderr]    --> src/mutex.rs:117:9
Dec 15 05:04:36.876 INFO [stderr]     |
Dec 15 05:04:36.876 INFO [stderr] 117 |         unsafe {
Dec 15 05:04:36.876 INFO [stderr]     |         ^^^^^^ unnecessary `unsafe` block
Dec 15 05:04:36.876 INFO [stderr]     |
Dec 15 05:04:36.876 INFO [stderr]     = note: #[warn(unused_unsafe)] on by default
Dec 15 05:04:36.876 INFO [stderr] 
Dec 15 05:04:36.876 INFO [stderr] warning: the feature `generic_param_attrs` has been stable since 1.27.0 and no longer requires an attribute to enable
Dec 15 05:04:36.876 INFO [stderr]  --> src/lib.rs:1:58
Dec 15 05:04:36.876 INFO [stderr]   |
Dec 15 05:04:36.877 INFO [stderr] 1 | #![cfg_attr(feature = "unstable", feature(asm, const_fn, generic_param_attrs, dropck_eyepatch))]
Dec 15 05:04:36.877 INFO [stderr]   |                                                          ^^^^^^^^^^^^^^^^^^^
Dec 15 05:04:36.877 INFO [stderr]   |
Dec 15 05:04:36.877 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 15 05:04:36.877 INFO [stderr] 
Dec 15 05:04:36.919 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.31s
Dec 15 05:04:36.925 INFO [stderr] su: No module specific data is present
Dec 15 05:04:37.311 INFO running `"docker" "inspect" "ea54912143e6eb29386bdef1b670a04f74aff9c89ef565d697e9ec1196db953a"`
Dec 15 05:04:37.556 INFO running `"docker" "rm" "-f" "ea54912143e6eb29386bdef1b670a04f74aff9c89ef565d697e9ec1196db953a"`
Dec 15 05:04:37.706 INFO [stdout] ea54912143e6eb29386bdef1b670a04f74aff9c89ef565d697e9ec1196db953a
Dec 15 05:04:37.708 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-1/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 15 05:04:38.114 INFO [stdout] 4d52dc32cb3467c1f2a85ad277ef4a43c55ec60492f15040ecd99ec14868e586
Dec 15 05:04:38.117 INFO running `"docker" "start" "-a" "4d52dc32cb3467c1f2a85ad277ef4a43c55ec60492f15040ecd99ec14868e586"`
Dec 15 05:04:38.624 INFO [stderr] usermod: no changes
Dec 15 05:04:38.658 INFO [stderr]    Compiling mcs v0.1.1 (/source)
Dec 15 05:04:39.375 INFO [stderr] warning: unnecessary `unsafe` block
Dec 15 05:04:39.375 INFO [stderr]    --> src/mutex.rs:117:9
Dec 15 05:04:39.375 INFO [stderr]     |
Dec 15 05:04:39.375 INFO [stderr] 117 |         unsafe {
Dec 15 05:04:39.375 INFO [stderr]     |         ^^^^^^ unnecessary `unsafe` block
Dec 15 05:04:39.375 INFO [stderr]     |
Dec 15 05:04:39.375 INFO [stderr]     = note: #[warn(unused_unsafe)] on by default
Dec 15 05:04:39.375 INFO [stderr] 
Dec 15 05:04:39.375 INFO [stderr] warning: the feature `generic_param_attrs` has been stable since 1.27.0 and no longer requires an attribute to enable
Dec 15 05:04:39.375 INFO [stderr]  --> src/lib.rs:1:58
Dec 15 05:04:39.375 INFO [stderr]   |
Dec 15 05:04:39.375 INFO [stderr] 1 | #![cfg_attr(feature = "unstable", feature(asm, const_fn, generic_param_attrs, dropck_eyepatch))]
Dec 15 05:04:39.375 INFO [stderr]   |                                                          ^^^^^^^^^^^^^^^^^^^
Dec 15 05:04:39.375 INFO [stderr]   |
Dec 15 05:04:39.375 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 15 05:04:39.375 INFO [stderr] 
Dec 15 05:04:40.571 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.92s
Dec 15 05:04:40.571 INFO [stderr] su: No module specific data is present
Dec 15 05:04:41.273 INFO running `"docker" "inspect" "4d52dc32cb3467c1f2a85ad277ef4a43c55ec60492f15040ecd99ec14868e586"`
Dec 15 05:04:41.649 INFO running `"docker" "rm" "-f" "4d52dc32cb3467c1f2a85ad277ef4a43c55ec60492f15040ecd99ec14868e586"`
Dec 15 05:04:41.981 INFO [stdout] 4d52dc32cb3467c1f2a85ad277ef4a43c55ec60492f15040ecd99ec14868e586
Dec 15 05:04:41.988 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-1/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 15 05:04:42.451 INFO [stdout] 1e3ee0ba393b1193ab94153b707a7cc564e537eded5c164f5831baf361c465d5
Dec 15 05:04:42.457 INFO running `"docker" "start" "-a" "1e3ee0ba393b1193ab94153b707a7cc564e537eded5c164f5831baf361c465d5"`
Dec 15 05:04:43.743 INFO [stderr] usermod: no changes
Dec 15 05:04:43.855 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
Dec 15 05:04:43.855 INFO [stderr]      Running /target/debug/deps/mcs-cf7a28725933a64c
Dec 15 05:04:43.861 INFO [stdout] 
Dec 15 05:04:43.861 INFO [stdout] running 9 tests
Dec 15 05:04:43.867 INFO [stdout] test mutex::test::smoke ... ok
Dec 15 05:04:43.867 INFO [stdout] test mutex::test::test_get_mut ... ok
Dec 15 05:04:43.868 INFO [stdout] test mutex::test::test_into_inner ... ok
Dec 15 05:04:43.868 INFO [stdout] test mutex::test::test_lock_unsized ... ok
Dec 15 05:04:43.869 INFO [stdout] test mutex::test::test_into_inner_drop ... ok
Dec 15 05:04:43.872 INFO [stderr] thread '<unnamed>' panicked at 'explicit panic', src/mutex.rs:384:13
Dec 15 05:04:43.872 INFO [stderr] stack backtrace:
Dec 15 05:04:43.875 INFO [stdout] test mutex::test::try_lock ... ok
Dec 15 05:04:43.875 INFO [stdout] test mutex::test::lots_and_lots ... ok
Dec 15 05:04:43.883 INFO [stdout] test mutex::test::test_lock_arc_nested ... ok
Dec 15 05:04:43.903 INFO [stderr]    0:     0x559ead69bf13 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::heb4d4d98bcf46d90
Dec 15 05:04:44.014 INFO [stderr]                                at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:49
Dec 15 05:04:44.014 INFO [stderr]    1:     0x559ead696718 - std::sys_common::backtrace::_print::h919420b22c2473e3
Dec 15 05:04:44.014 INFO [stderr]                                at src/libstd/sys_common/backtrace.rs:71
Dec 15 05:04:44.014 INFO [stderr]    2:     0x559ead69ae82 - std::panicking::default_hook::{{closure}}::h22d4ac021acb88d5
Dec 15 05:04:44.014 INFO [stderr]                                at src/libstd/sys_common/backtrace.rs:59
Dec 15 05:04:44.014 INFO [stderr]                                at src/libstd/panicking.rs:210
Dec 15 05:04:44.014 INFO [stderr]    3:     0x559ead69abf4 - std::panicking::default_hook::h1134a4d34aab4428
Dec 15 05:04:44.014 INFO [stderr]                                at src/libstd/panicking.rs:224
Dec 15 05:04:44.014 INFO [stderr]    4:     0x559ead69b590 - std::panicking::rust_panic_with_hook::h9c89557c251f2d42
Dec 15 05:04:44.014 INFO [stderr]                                at src/libstd/panicking.rs:487
Dec 15 05:04:44.014 INFO [stderr]    5:     0x559ead69b111 - std::panicking::continue_panic_fmt::h6b63497ce98499d4
Dec 15 05:04:44.014 INFO [stderr]                                at src/libstd/panicking.rs:394
Dec 15 05:04:44.014 INFO [stderr]    6:     0x559ead69aff5 - rust_begin_unwind
Dec 15 05:04:44.014 INFO [stderr]                                at src/libstd/panicking.rs:321
Dec 15 05:04:44.014 INFO [stderr]    7:     0x559ead6ab3bc - core::panicking::panic_fmt::h68c043a5e81351f3
Dec 15 05:04:44.028 INFO [stderr]                                at src/libcore/panicking.rs:95
Dec 15 05:04:44.028 INFO [stderr]    8:     0x559ead6ab2eb - core::panicking::panic::had389f92dd581222
Dec 15 05:04:44.028 INFO [stderr]                                at src/libcore/panicking.rs:59
Dec 15 05:04:44.028 INFO [stderr]    9:     0x559ead641732 - mcs::mutex::test::test_lock_arc_access_in_unwind::{{closure}}::h986ab137422b8a74
Dec 15 05:04:44.028 INFO [stderr]                                at src/mutex.rs:384
Dec 15 05:04:44.028 INFO [stderr]   10:     0x559ead647072 - std::sys_common::backtrace::__rust_begin_short_backtrace::he5a07326c0d60a52
Dec 15 05:04:44.028 INFO [stderr]                                at /rustc/bd47d6825bf4090517549d33cfef10d3300b4a75/src/libstd/sys_common/backtrace.rs:136
Dec 15 05:04:44.028 INFO [stderr]   11:     0x559ead63a82d - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::hc248719ea47c6b54
Dec 15 05:04:44.029 INFO [stderr]                                at /rustc/bd47d6825bf4090517549d33cfef10d3300b4a75/src/libstd/thread/mod.rs:479
Dec 15 05:04:44.029 INFO [stderr]   12:     0x559ead64e070 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h08913a2fd2a0a5fd
Dec 15 05:04:44.029 INFO [stderr]                                at /rustc/bd47d6825bf4090517549d33cfef10d3300b4a75/src/libstd/panic.rs:319
Dec 15 05:04:44.029 INFO [stderr]   13:     0x559ead647674 - std::panicking::try::do_call::h958318bc0ef07953
Dec 15 05:04:44.029 INFO [stderr]                                at /rustc/bd47d6825bf4090517549d33cfef10d3300b4a75/src/libstd/panicking.rs:306
Dec 15 05:04:44.029 INFO [stderr]   14:     0x559ead6a9bf9 - __rust_maybe_catch_panic
Dec 15 05:04:44.030 INFO [stderr]                                at src/libpanic_unwind/lib.rs:102
Dec 15 05:04:44.030 INFO [stderr]   15:     0x559ead6472bd - std::panicking::try::h2284adbec215cedf
Dec 15 05:04:44.030 INFO [stderr]                                at /rustc/bd47d6825bf4090517549d33cfef10d3300b4a75/src/libstd/panicking.rs:285
Dec 15 05:04:44.030 INFO [stderr]   16:     0x559ead64e2e2 - std::panic::catch_unwind::h82b0567b4384bd91
Dec 15 05:04:44.030 INFO [stderr]                                at /rustc/bd47d6825bf4090517549d33cfef10d3300b4a75/src/libstd/panic.rs:398
Dec 15 05:04:44.030 INFO [stderr]   17:     0x559ead63a5b5 - std::thread::Builder::spawn_unchecked::{{closure}}::heeebc29b04fdf610
Dec 15 05:04:44.030 INFO [stderr]                                at /rustc/bd47d6825bf4090517549d33cfef10d3300b4a75/src/libstd/thread/mod.rs:478
Dec 15 05:04:44.030 INFO [stderr]   18:     0x559ead63ab76 - <F as alloc::boxed::FnBox<A>>::call_box::h77c6ec9157fdbc4d
Dec 15 05:04:44.030 INFO [stderr]                                at /rustc/bd47d6825bf4090517549d33cfef10d3300b4a75/src/liballoc/boxed.rs:673
Dec 15 05:04:44.030 INFO [stderr]   19:     0x559ead69db1d - std::sys::unix::thread::Thread::new::thread_start::h08aa646226e66c99
Dec 15 05:04:44.030 INFO [stderr]                                at /rustc/bd47d6825bf4090517549d33cfef10d3300b4a75/src/liballoc/boxed.rs:683
Dec 15 05:04:44.030 INFO [stderr]                                at src/libstd/sys_common/thread.rs:24
Dec 15 05:04:44.030 INFO [stderr]                                at src/libstd/sys/unix/thread.rs:91
Dec 15 05:04:44.030 INFO [stderr]   20:     0x7f616d39b6b9 - start_thread
Dec 15 05:04:44.030 INFO [stderr]   21:     0x7f616cebb41c - clone
Dec 15 05:04:44.030 INFO [stderr]   22:                0x0 - <unknown>
Dec 15 05:04:44.030 INFO [stdout] test mutex::test::test_lock_arc_access_in_unwind ... ok
Dec 15 05:04:44.030 INFO [stdout] 
Dec 15 05:04:44.032 INFO [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 15 05:04:44.032 INFO [stdout] 
Dec 15 05:04:44.032 INFO [stderr]    Doc-tests mcs
Dec 15 05:04:44.363 INFO [stdout] 
Dec 15 05:04:44.363 INFO [stdout] running 1 test
Dec 15 05:04:46.485 INFO [stdout] test src/mutex.rs - mutex::Mutex (line 34) ... ok
Dec 15 05:04:46.485 INFO [stdout] 
Dec 15 05:04:46.485 INFO [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 15 05:04:46.485 INFO [stdout] 
Dec 15 05:04:46.531 INFO [stderr] su: No module specific data is present
Dec 15 05:04:47.557 INFO running `"docker" "inspect" "1e3ee0ba393b1193ab94153b707a7cc564e537eded5c164f5831baf361c465d5"`
Dec 15 05:04:47.868 INFO running `"docker" "rm" "-f" "1e3ee0ba393b1193ab94153b707a7cc564e537eded5c164f5831baf361c465d5"`
Dec 15 05:04:48.151 INFO [stdout] 1e3ee0ba393b1193ab94153b707a7cc564e537eded5c164f5831baf361c465d5