[INFO] fetching crate stoppable_thread 0.2.1...
[INFO] testing stoppable_thread-0.2.1 against master#2fe50cd72c476ebacdedb14893e9632b4de961c2 for pr-116088-2
[INFO] extracting crate stoppable_thread 0.2.1 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate stoppable_thread 0.2.1 on toolchain 2fe50cd72c476ebacdedb14893e9632b4de961c2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fe50cd72c476ebacdedb14893e9632b4de961c2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stoppable_thread 0.2.1
[INFO] finished tweaking crates.io crate stoppable_thread 0.2.1
[INFO] tweaked toml for crates.io crate stoppable_thread 0.2.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fe50cd72c476ebacdedb14893e9632b4de961c2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fe50cd72c476ebacdedb14893e9632b4de961c2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2fe50cd72c476ebacdedb14893e9632b4de961c2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] afb65faa623d6f6f2dc7fc1825a2bee33119f1c3dd17422bc31a6c4aaf8ed732
[INFO] running `Command { std: "docker" "start" "-a" "afb65faa623d6f6f2dc7fc1825a2bee33119f1c3dd17422bc31a6c4aaf8ed732", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "afb65faa623d6f6f2dc7fc1825a2bee33119f1c3dd17422bc31a6c4aaf8ed732", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afb65faa623d6f6f2dc7fc1825a2bee33119f1c3dd17422bc31a6c4aaf8ed732", kill_on_drop: false }`
[INFO] [stdout] afb65faa623d6f6f2dc7fc1825a2bee33119f1c3dd17422bc31a6c4aaf8ed732
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2fe50cd72c476ebacdedb14893e9632b4de961c2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a1b424d9b52f8b205dfc8bf0aaa69ed8bb1432d646aaa14374a5d6eeac500a3
[INFO] running `Command { std: "docker" "start" "-a" "6a1b424d9b52f8b205dfc8bf0aaa69ed8bb1432d646aaa14374a5d6eeac500a3", kill_on_drop: false }`
[INFO] [stderr]    Compiling stoppable_thread v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "6a1b424d9b52f8b205dfc8bf0aaa69ed8bb1432d646aaa14374a5d6eeac500a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a1b424d9b52f8b205dfc8bf0aaa69ed8bb1432d646aaa14374a5d6eeac500a3", kill_on_drop: false }`
[INFO] [stdout] 6a1b424d9b52f8b205dfc8bf0aaa69ed8bb1432d646aaa14374a5d6eeac500a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2fe50cd72c476ebacdedb14893e9632b4de961c2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 011941f0dcab0e67c6610cada871054d7b71322573f818751015e6c763677ad1
[INFO] running `Command { std: "docker" "start" "-a" "011941f0dcab0e67c6610cada871054d7b71322573f818751015e6c763677ad1", kill_on_drop: false }`
[INFO] [stderr]    Compiling stoppable_thread v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `stopping`
[INFO] [stdout]    --> src/lib.rs:225:13
[INFO] [stdout]     |
[INFO] [stdout] 225 |         let stopping = Stopping::new(spawn(move |stopped|
[INFO] [stdout]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_stopping`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `joining`
[INFO] [stdout]    --> src/lib.rs:229:13
[INFO] [stdout]     |
[INFO] [stdout] 229 |         let joining = Joining::new(spawn(move |stopped|
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_joining`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "011941f0dcab0e67c6610cada871054d7b71322573f818751015e6c763677ad1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "011941f0dcab0e67c6610cada871054d7b71322573f818751015e6c763677ad1", kill_on_drop: false }`
[INFO] [stdout] 011941f0dcab0e67c6610cada871054d7b71322573f818751015e6c763677ad1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2fe50cd72c476ebacdedb14893e9632b4de961c2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8916979396b27a2c2b3131d57279be6b550894c373a80d8e34ef40a79855cb02
[INFO] running `Command { std: "docker" "start" "-a" "8916979396b27a2c2b3131d57279be6b550894c373a80d8e34ef40a79855cb02", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `stopping`
[INFO] [stderr]    --> src/lib.rs:225:13
[INFO] [stderr]     |
[INFO] [stderr] 225 |         let stopping = Stopping::new(spawn(move |stopped|
[INFO] [stderr]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_stopping`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `joining`
[INFO] [stderr]    --> src/lib.rs:229:13
[INFO] [stderr]     |
[INFO] [stderr] 229 |         let joining = Joining::new(spawn(move |stopped|
[INFO] [stderr]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_joining`
[INFO] [stderr] 
[INFO] [stderr] warning: `stoppable_thread` (lib test) generated 2 warnings (run `cargo fix --lib -p stoppable_thread --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/stoppable_thread-5dde586cd4a4dcb5)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_stoppable_thead ... ok
[INFO] [stdout] test test_guard ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- test_guard stdout ----
[INFO] [stdout] thread 'test_guard' panicked at src/lib.rs:238:5:
[INFO] [stdout] assertion failed: *sc > 1 && *sc < 5
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5572e438cb66 - std::backtrace_rs::backtrace::libunwind::trace::hd7a456af414d63de
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
[INFO] [stdout]    1:     0x5572e438cb66 - std::backtrace_rs::backtrace::trace_unsynchronized::h64867240ea973bd5
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x5572e438cb66 - std::sys_common::backtrace::_print_fmt::h2808b222ea4d26d0
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stdout]    3:     0x5572e438cb66 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h03f74bc036e21c80
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x5572e43b5ae0 - core::fmt::rt::Argument::fmt::h8121cad32ccb67f1
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/core/src/fmt/rt.rs:142:9
[INFO] [stdout]    5:     0x5572e43b5ae0 - core::fmt::write::hba6738a49cae548f
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/core/src/fmt/mod.rs:1120:17
[INFO] [stdout]    6:     0x5572e438a6ff - std::io::Write::write_fmt::h998dc49ddc9bbda8
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/std/src/io/mod.rs:1810:15
[INFO] [stdout]    7:     0x5572e438c944 - std::sys_common::backtrace::_print::h12e2732351687df5
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x5572e438c944 - std::sys_common::backtrace::print::h3977ff4fa70d37c3
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x5572e438e6b7 - std::panicking::default_hook::{{closure}}::h3649b42de801f190
[INFO] [stdout]   10:     0x5572e438e39d - std::panicking::default_hook::h3fb7ccab350417f5
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/std/src/panicking.rs:289:9
[INFO] [stdout]   11:     0x5572e435e5d7 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hcac2ee49c7d5205e
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/alloc/src/boxed.rs:2029:9
[INFO] [stdout]   12:     0x5572e435e5d7 - test::test_main::{{closure}}::ha6dc19c93a11f2d1
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/test/src/lib.rs:138:21
[INFO] [stdout]   13:     0x5572e438ecd6 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h29b8e785b856bb23
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/alloc/src/boxed.rs:2029:9
[INFO] [stdout]   14:     0x5572e438ecd6 - std::panicking::rust_panic_with_hook::h5efc89ef996de810
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/std/src/panicking.rs:783:13
[INFO] [stdout]   15:     0x5572e438e9e9 - std::panicking::begin_panic_handler::{{closure}}::h6289f51ae1ae9efc
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/std/src/panicking.rs:649:13
[INFO] [stdout]   16:     0x5572e438d066 - std::sys_common::backtrace::__rust_end_short_backtrace::h9f143e0a9d826e65
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stdout]   17:     0x5572e438e780 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/std/src/panicking.rs:645:5
[INFO] [stdout]   18:     0x5572e431acd5 - core::panicking::panic_fmt::h5b9d04f36fd68862
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/core/src/panicking.rs:72:14
[INFO] [stdout]   19:     0x5572e431ad93 - core::panicking::panic::h91919f6cc3a65429
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/core/src/panicking.rs:144:5
[INFO] [stdout]   20:     0x5572e431ff38 - stoppable_thread::test_guard::h841dc2f126e2a4ed
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:238:5
[INFO] [stdout]   21:     0x5572e431fc27 - stoppable_thread::test_guard::{{closure}}::h79b43bcb8698f431
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:197:16
[INFO] [stdout]   22:     0x5572e4321616 - core::ops::function::FnOnce::call_once::hdb5036fd5c765262
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x5572e4363ddf - core::ops::function::FnOnce::call_once::h547df4cc4781c42c
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5572e4363ddf - test::__rust_begin_short_backtrace::h0751f8da0df8afc9
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/test/src/lib.rs:627:18
[INFO] [stdout]   25:     0x5572e4362c31 - test::run_test_in_process::{{closure}}::h08b7e2b944f5d3bf
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/test/src/lib.rs:650:60
[INFO] [stdout]   26:     0x5572e4362c31 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h4eabe934da23f6d3
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   27:     0x5572e4362c31 - std::panicking::try::do_call::h8bce2a819a83d75f
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/std/src/panicking.rs:552:40
[INFO] [stdout]   28:     0x5572e4362c31 - std::panicking::try::h8d0ad43ca1e9dfe4
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/std/src/panicking.rs:516:19
[INFO] [stdout]   29:     0x5572e4362c31 - std::panic::catch_unwind::h80c407981483a27f
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/std/src/panic.rs:142:14
[INFO] [stdout]   30:     0x5572e4362c31 - test::run_test_in_process::h34f4f1cf26878dcc
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/test/src/lib.rs:650:27
[INFO] [stdout]   31:     0x5572e4362c31 - test::run_test::{{closure}}::hf98423759bd4e4de
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/test/src/lib.rs:573:43
[INFO] [stdout]   32:     0x5572e4329fc6 - test::run_test::{{closure}}::h31f9214a9865a468
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/test/src/lib.rs:601:41
[INFO] [stdout]   33:     0x5572e4329fc6 - std::sys_common::backtrace::__rust_begin_short_backtrace::h97eebf57e64e4a3e
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/std/src/sys_common/backtrace.rs:155:18
[INFO] [stdout]   34:     0x5572e432f0c7 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h10343cc6e645d5a7
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/std/src/thread/mod.rs:529:17
[INFO] [stdout]   35:     0x5572e432f0c7 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h7676f5746d51f304
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   36:     0x5572e432f0c7 - std::panicking::try::do_call::h76c69ddb47b6692d
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/std/src/panicking.rs:552:40
[INFO] [stdout]   37:     0x5572e432f0c7 - std::panicking::try::h231004126786543e
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/std/src/panicking.rs:516:19
[INFO] [stdout]   38:     0x5572e432f0c7 - std::panic::catch_unwind::h519133dc1360745e
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/std/src/panic.rs:142:14
[INFO] [stdout]   39:     0x5572e432f0c7 - std::thread::Builder::spawn_unchecked_::{{closure}}::h7c96b1538d88533f
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/std/src/thread/mod.rs:528:30
[INFO] [stdout]   40:     0x5572e432f0c7 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h90e3a916fbad66da
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   41:     0x5572e4393785 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h12c26c313019b755
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/alloc/src/boxed.rs:2015:9
[INFO] [stdout]   42:     0x5572e4393785 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h3a7c22937eaa10d1
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/alloc/src/boxed.rs:2015:9
[INFO] [stdout]   43:     0x5572e4393785 - std::sys::unix::thread::Thread::new::thread_start::h1ce303acc71f2e7d
[INFO] [stdout]                                at /rustc/2fe50cd72c476ebacdedb14893e9632b4de961c2/library/std/src/sys/unix/thread.rs:108:17
[INFO] [stdout]   44:     0x7f9119a69ac3 - <unknown>
[INFO] [stdout]   45:     0x7f9119afabf4 - __clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     test_guard
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.12s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "8916979396b27a2c2b3131d57279be6b550894c373a80d8e34ef40a79855cb02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8916979396b27a2c2b3131d57279be6b550894c373a80d8e34ef40a79855cb02", kill_on_drop: false }`
[INFO] [stdout] 8916979396b27a2c2b3131d57279be6b550894c373a80d8e34ef40a79855cb02
