[INFO] fetching crate spin 0.6.0...
[INFO] testing spin-0.6.0 against 1.47.0 for beta-1.48-1
[INFO] extracting crate spin 0.6.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate spin 0.6.0 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate spin 0.6.0
[INFO] finished tweaking crates.io crate spin 0.6.0
[INFO] tweaked toml for crates.io crate spin 0.6.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate spin 0.6.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8120a4c08a40096e5a5053b62664ea60d7eeb1654b3fa6902f68375a643716e9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8120a4c08a40096e5a5053b62664ea60d7eeb1654b3fa6902f68375a643716e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8120a4c08a40096e5a5053b62664ea60d7eeb1654b3fa6902f68375a643716e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8120a4c08a40096e5a5053b62664ea60d7eeb1654b3fa6902f68375a643716e9", kill_on_drop: false }`
[INFO] [stdout] 8120a4c08a40096e5a5053b62664ea60d7eeb1654b3fa6902f68375a643716e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f67b8215f0878637554d904d373e48feb5d59e70f3f0e13ba2a90d4893639fdb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f67b8215f0878637554d904d373e48feb5d59e70f3f0e13ba2a90d4893639fdb", kill_on_drop: false }`
[INFO] [stderr]    Compiling spin v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "f67b8215f0878637554d904d373e48feb5d59e70f3f0e13ba2a90d4893639fdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f67b8215f0878637554d904d373e48feb5d59e70f3f0e13ba2a90d4893639fdb", kill_on_drop: false }`
[INFO] [stdout] f67b8215f0878637554d904d373e48feb5d59e70f3f0e13ba2a90d4893639fdb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d6d059976c6621e6723482c94fbf07269b21a68ac6b784b460073689676ac629
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d6d059976c6621e6723482c94fbf07269b21a68ac6b784b460073689676ac629", kill_on_drop: false }`
[INFO] [stderr]    Compiling spin v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.22s
[INFO] running `Command { std: "docker" "inspect" "d6d059976c6621e6723482c94fbf07269b21a68ac6b784b460073689676ac629", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6d059976c6621e6723482c94fbf07269b21a68ac6b784b460073689676ac629", kill_on_drop: false }`
[INFO] [stdout] d6d059976c6621e6723482c94fbf07269b21a68ac6b784b460073689676ac629
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d752af1fb39e6d6559a37313fd6684bff15b16236d4704c8d76ce112c377548c
[INFO] running `Command { std: "docker" "start" "-a" "d752af1fb39e6d6559a37313fd6684bff15b16236d4704c8d76ce112c377548c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.36s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/spin-70fa9a9fa3d2d4a3
[INFO] [stdout] running 28 tests
[INFO] [stdout] test mutex::tests::test_into_inner ... ok
[INFO] [stdout] test mutex::tests::test_into_inner_drop ... ok
[INFO] [stdout] test mutex::tests::test_mutex_arc_nested ... ok
[INFO] [stdout] test mutex::tests::test_mutex_unsized ... ok
[INFO] [stdout] test mutex::tests::smoke ... ok
[INFO] [stdout] test once::tests::smoke_once_value ... ok
[INFO] [stdout] test once::tests::wait ... ok
[INFO] [stdout] test rw_lock::tests::smoke ... ok
[INFO] [stdout] test rw_lock::tests::test_force_write_unlock ... ok
[INFO] [stdout] test once::tests::try ... ok
[INFO] [stdout] test mutex::tests::test_mutex_force_lock ... ok
[INFO] [stdout] test once::tests::smoke_once ... ok
[INFO] [stdout] test rw_lock::tests::test_force_read_decrement ... ok
[INFO] [stdout] test once::tests::try_no_wait ... ok
[INFO] [stderr] thread '<unnamed>' panicked at 'explicit panic', src/rw_lock.rs:934:13
[INFO] [stdout] test rw_lock::tests::test_into_inner ... ok
[INFO] [stderr] thread '<unnamed>' panicked at 'explicit panic', src/mutex.rs:414:13
[INFO] [stdout] test rw_lock::tests::test_upgrade_downgrade ... ok
[INFO] [stdout] test rw_lock::tests::test_rw_try_read ... ok
[INFO] [stdout] test rw_lock::tests::test_rwlock_unsized ... ok
[INFO] [stdout] test rw_lock::tests::test_into_inner_drop ... ok
[INFO] [stdout] test mutex::tests::lots_and_lots ... ok
[INFO] [stdout] test mutex::tests::try_lock ... ok
[INFO] [stdout] test once::tests::init_constant ... ok
[INFO] [stdout] test rw_lock::tests::test_rwlock_try_write ... ok
[INFO] [stdout] test once::tests::panic ... ok
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x5558a1c9afc0 - std::backtrace_rs::backtrace::libunwind::trace::h577ea05e9ca4629a
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stderr]    1:     0x5558a1c9afc0 - std::backtrace_rs::backtrace::trace_unsynchronized::h50b9b72b84c7dd56
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x5558a1c9afc0 - std::sys_common::backtrace::_print_fmt::h6541cf9823837fac
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:79
[INFO] [stderr]    3:     0x5558a1c9afc0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hf64fbff071026df5
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:58
[INFO] [stderr]    4:     0x5558a1cbde0c - core::fmt::write::h9ddafa4860d8adff
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/fmt/mod.rs:1082
[INFO] [stderr]    5:     0x5558a1c97c47 - std::io::Write::write_fmt::h1d2ee292d2b65481
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/io/mod.rs:1514
[INFO] [stderr]    6:     0x5558a1c9d440 - std::sys_common::backtrace::_print::ha25f9ff5080d886d
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:61
[INFO] [stderr]    7:     0x5558a1c9d440 - std::sys_common::backtrace::print::h213e8aa8dc5405c0
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:48
[INFO] [stderr]    8:     0x5558a1c9d440 - std::panicking::default_hook::{{closure}}::h6482fae49ef9d963
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:200
[INFO] [stderr]    9:     0x5558a1c9d18c - std::panicking::default_hook::he30ad7589e0970f9
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:219
[INFO] [stderr]   10:     0x5558a1c9daa3 - std::panicking::rust_panic_with_hook::haa1ed36ada4ffb03
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:569
[INFO] [stderr]   11:     0x5558a1c0f2c8 - std::panicking::begin_panic::{{closure}}::h96cc4465f71d47b5
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:498
[INFO] [stderr]   12:     0x5558a1c3ac58 - std::sys_common::backtrace::__rust_end_short_backtrace::hbab92caed6a98221
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:153
[INFO] [stderr]   13:     0x5558a1c0f1f3 - std::panicking::begin_panic::h5bc086efd2010e24
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:497
[INFO] [stderr]   14:     0x5558a1c1eef6 - spin::rw_lock::tests::test_rw_access_in_unwind::{{closure}}::hf69315e169a4425b
[INFO] [stderr]                                at /opt/rustwide/workdir/src/rw_lock.rs:934
[INFO] [stderr]   15:     0x5558a1c3ad5e - std::sys_common::backtrace::__rust_begin_short_backtrace::h401f8802c71108a7
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:137
[INFO] [stderr]   16:     0x5558a1c3550a - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h7857bf1578ecc2d2
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/thread/mod.rs:458
[INFO] [stderr]   17:     0x5558a1c251de - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hfd9f7b8d770c029d
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:308
[INFO] [stderr]   18:     0x5558a1c0fcba - std::panicking::try::do_call::h5d0a1a6ceefda7b3
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:373
[INFO] [stderr]   19:     0x5558a1c12b8d - __rust_try
[INFO] [stderr]   20:     0x5558a1c0f717 - std::panicking::try::h8d2c5b27b2ba46f5
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:337
[INFO] [stderr]   21:     0x5558a1c2651e - std::panic::catch_unwind::hb8dbbc7704bf885f
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:379
[INFO] [stderr]   22:     0x5558a1c34a8e - std::thread::Builder::spawn_unchecked::{{closure}}::h51d5a48a4289604e
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/thread/mod.rs:457
[INFO] [stderr]   23:     0x5558a1c132ee - core::ops::function::FnOnce::call_once{{vtable.shim}}::h52810c26c8923aae
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/ops/function.rs:227
[INFO] [stderr]   24:     0x5558a1ca425a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h670c50864ac2cb92
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/alloc/src/boxed.rs:1042
[INFO] [stderr]   25:     0x5558a1ca425a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h2511952749086d81
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/alloc/src/boxed.rs:1042
[INFO] [stderr]   26:     0x5558a1ca425a - std::sys::unix::thread::Thread::new::thread_start::h5ad4ddffe24373a8
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys/unix/thread.rs:87
[INFO] [stderr]   27:     0x7fcaf39cd609 - start_thread
[INFO] [stderr]   28:     0x7fcaf38d9103 - clone
[INFO] [stderr]   29:                0x0 - <unknown>
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x5558a1c9afc0 - std::backtrace_rs::backtrace::libunwind::trace::h577ea05e9ca4629a
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stderr]    1:     0x5558a1c9afc0 - std::backtrace_rs::backtrace::trace_unsynchronized::h50b9b72b84c7dd56
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x5558a1c9afc0 - std::sys_common::backtrace::_print_fmt::h6541cf9823837fac
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:79
[INFO] [stderr]    3:     0x5558a1c9afc0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hf64fbff071026df5
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:58
[INFO] [stderr]    4:     0x5558a1cbde0c - core::fmt::write::h9ddafa4860d8adff
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/fmt/mod.rs:1082
[INFO] [stderr]    5:     0x5558a1c97c47 - std::io::Write::write_fmt::h1d2ee292d2b65481
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/io/mod.rs:1514
[INFO] [stderr]    6:     0x5558a1c9d440 - std::sys_common::backtrace::_print::ha25f9ff5080d886d
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:61
[INFO] [stderr]    7:     0x5558a1c9d440 - std::sys_common::backtrace::print::h213e8aa8dc5405c0
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:48
[INFO] [stderr]    8:     0x5558a1c9d440 - std::panicking::default_hook::{{closure}}::h6482fae49ef9d963
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:200
[INFO] [stderr]    9:     0x5558a1c9d18c - std::panicking::default_hook::he30ad7589e0970f9
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:219
[INFO] [stderr]   10:     0x5558a1c9daa3 - std::panicking::rust_panic_with_hook::haa1ed36ada4ffb03
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:569
[INFO] [stderr]   11:     0x5558a1c0f2c8 - std::panicking::begin_panic::{{closure}}::h96cc4465f71d47b5
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:498
[INFO] [stderr]   12:     0x5558a1c3ac58 - std::sys_common::backtrace::__rust_end_short_backtrace::hbab92caed6a98221
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:153
[INFO] [stderr]   13:     0x5558a1c0f1f3 - std::panicking::begin_panic::h5bc086efd2010e24
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:497
[INFO] [stderr]   14:     0x5558a1c1d826 - spin::mutex::tests::test_mutex_arc_access_in_unwind::{{closure}}::hfdd13676af1093e2
[INFO] [stderr]                                at /opt/rustwide/workdir/src/mutex.rs:414
[INFO] [stderr]   15:     0x5558a1c3ae8e - std::sys_common::backtrace::__rust_begin_short_backtrace::he37f6c0e70126199
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:137
[INFO] [stderr]   16:     0x5558a1c354fa - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h77f39a6a96fa9532
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/thread/mod.rs:458
[INFO] [stderr]   17:     0x5558a1c251be - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hb4d9fcb0bd501637
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:308
[INFO] [stderr]   18:     0x5558a1c0fdda - std::panicking::try::do_call::hbf33334892f52b37
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:373
[INFO] [stderr]   19:     0x5558a1c12b8d - __rust_try
[INFO] [stderr]   20:     0x5558a1c0f327 - std::panicking::try::h0048336cf593f95d
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:337
[INFO] [stderr]   21:     0x5558a1c2641e - std::panic::catch_unwind::h56f6af1477c8afb4
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:379
[INFO] [stderr]   22:     0x5558a1c34d5e - std::thread::Builder::spawn_unchecked::{{closure}}::h9134f842d977c6fb
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/thread/mod.rs:457
[INFO] [stderr]   23:     0x5558a1c1338e - core::ops::function::FnOnce::call_once{{vtable.shim}}::hf01c4426d5b0afbe
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/ops/function.rs:227
[INFO] [stderr]   24:     0x5558a1ca425a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h670c50864ac2cb92
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/alloc/src/boxed.rs:1042
[INFO] [stderr]   25:     0x5558a1ca425a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h2511952749086d81
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/alloc/src/boxed.rs:1042
[INFO] [stderr]   26:     0x5558a1ca425a - std::sys::unix::thread::Thread::new::thread_start::h5ad4ddffe24373a8
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys/unix/thread.rs:87
[INFO] [stderr]   27:     0x7fcaf39cd609 - start_thread
[INFO] [stderr]   28:     0x7fcaf38d9103 - clone
[INFO] [stderr]   29:                0x0 - <unknown>
[INFO] [stdout] test rw_lock::tests::test_rw_access_in_unwind ... ok
[INFO] [stdout] test once::tests::stampede_once ... ok
[INFO] [stdout] test rw_lock::tests::test_rw_arc ... ok
[INFO] [stdout] test mutex::tests::test_mutex_arc_access_in_unwind ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 28 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests spin
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLock<T>::try_write (line 310) ... ok
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLock<T>::get_mut (line 362) ... ok
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLock<T>::try_read (line 176) ... ok
[INFO] [stdout] test src/once.rs - once::Once<T>::call_once (line 89) ... ok
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLock<T>::read (line 148) ... ok
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLock (line 38) ... ok
[INFO] [stdout] test src/mutex.rs - mutex::Mutex<T>::get_mut (line 187) ... ok
[INFO] [stdout] test src/mutex.rs - mutex::Mutex<T>::new (line 93) ... ok
[INFO] [stdout] test src/mutex.rs - mutex::Mutex (line 19) ... ok
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLock<T>::new (line 106) ... ok
[INFO] [stdout] test src/mutex.rs - mutex::Mutex<T>::lock (line 136) ... ok
[INFO] [stdout] test src/once.rs - once::Once (line 15) ... ok
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLockReadGuard::leak (line 396) ... ok
[INFO] [stdout] test src/mutex.rs - mutex::MutexGuard::leak (line 221) ... ok
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLockUpgradeableGuard::leak (line 519) ... ok
[INFO] [stdout] test src/mutex.rs - mutex::Mutex (line 41) ... ok
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLockUpgradeableGuard::upgrade (line 452) ... ok
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLock<T>::write (line 285) ... ok
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLockWriteGuard::leak (line 607) ... ok
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLockUpgradeableGuard::try_upgrade (line 472) ... ok
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLockUpgradeableGuard::downgrade (line 489) ... ok
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLockWriteGuard::downgrade_to_upgradeable (line 576) ... ok
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLockWriteGuard::downgrade (line 548) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d752af1fb39e6d6559a37313fd6684bff15b16236d4704c8d76ce112c377548c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d752af1fb39e6d6559a37313fd6684bff15b16236d4704c8d76ce112c377548c", kill_on_drop: false }`
[INFO] [stdout] d752af1fb39e6d6559a37313fd6684bff15b16236d4704c8d76ce112c377548c
