[INFO] fetching crate once_spin 0.1.3...
[INFO] testing once_spin-0.1.3 against beta-2020-10-09 for beta-1.48-1
[INFO] extracting crate once_spin 0.1.3 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate once_spin 0.1.3 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate once_spin 0.1.3
[INFO] finished tweaking crates.io crate once_spin 0.1.3
[INFO] tweaked toml for crates.io crate once_spin 0.1.3 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate once_spin 0.1.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4fe7a0214ff9b54db13e7bd50b9b9f1ba9b6a5f31ad774b505b864730ef21435
[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" "4fe7a0214ff9b54db13e7bd50b9b9f1ba9b6a5f31ad774b505b864730ef21435", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4fe7a0214ff9b54db13e7bd50b9b9f1ba9b6a5f31ad774b505b864730ef21435", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fe7a0214ff9b54db13e7bd50b9b9f1ba9b6a5f31ad774b505b864730ef21435", kill_on_drop: false }`
[INFO] [stdout] 4fe7a0214ff9b54db13e7bd50b9b9f1ba9b6a5f31ad774b505b864730ef21435
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf89ad29d6e4a7cbdabd22d35502e78c5086ac5a2c0fb1abedbb2260ad90656d
[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" "bf89ad29d6e4a7cbdabd22d35502e78c5086ac5a2c0fb1abedbb2260ad90656d", kill_on_drop: false }`
[INFO] [stderr]    Compiling once_spin v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "bf89ad29d6e4a7cbdabd22d35502e78c5086ac5a2c0fb1abedbb2260ad90656d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf89ad29d6e4a7cbdabd22d35502e78c5086ac5a2c0fb1abedbb2260ad90656d", kill_on_drop: false }`
[INFO] [stdout] bf89ad29d6e4a7cbdabd22d35502e78c5086ac5a2c0fb1abedbb2260ad90656d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2020-10-09" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 212a9190951b838421d33d7bde7636d0f9b214911996e03381fb71a6e9262e22
[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" "212a9190951b838421d33d7bde7636d0f9b214911996e03381fb71a6e9262e22", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling once_spin v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.10s
[INFO] running `Command { std: "docker" "inspect" "212a9190951b838421d33d7bde7636d0f9b214911996e03381fb71a6e9262e22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "212a9190951b838421d33d7bde7636d0f9b214911996e03381fb71a6e9262e22", kill_on_drop: false }`
[INFO] [stdout] 212a9190951b838421d33d7bde7636d0f9b214911996e03381fb71a6e9262e22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2020-10-09" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f9e6db5c34a68814a03a318ccb98558c4a2e877da6f64970f8ad9192c6ed29f3
[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" "f9e6db5c34a68814a03a318ccb98558c4a2e877da6f64970f8ad9192c6ed29f3", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/once_spin-b89bdd27c719e6e6
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/barrier-617f9889cec09a83
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_barrier ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mutex-4ff99d09e221f5c6
[INFO] [stdout] 
[INFO] [stderr] thread '<unnamed>' panicked at 'explicit panic', tests/mutex.rs:130:9
[INFO] [stdout] running 9 tests
[INFO] [stderr] stack backtrace:
[INFO] [stdout] test smoke ... ok
[INFO] [stdout] test try_lock ... ok
[INFO] [stdout] test test_mutex_unsized ... ok
[INFO] [stdout] test test_mutex_force_lock ... ok
[INFO] [stdout] test test_mutex_arc_nested ... ok
[INFO] [stdout] test test_into_inner_drop ... ok
[INFO] [stderr]    0:     0x560327bca420 - std::backtrace_rs::backtrace::libunwind::trace::h7cf3ca97bd83fbab
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stderr]    1:     0x560327bca420 - std::backtrace_rs::backtrace::trace_unsynchronized::h5a69c674b2d9ea5c
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x560327bca420 - std::sys_common::backtrace::_print_fmt::hdf72478dfcb50678
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:79
[INFO] [stderr]    3:     0x560327bca420 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h1e0bdbb35e83deca
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:58
[INFO] [stdout] test test_into_inner ... ok
[INFO] [stderr]    4:     0x560327bec75c - core::fmt::write::he67f9b17bcb7ee73
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/fmt/mod.rs:1080
[INFO] [stderr]    5:     0x560327bc6cf2 - std::io::Write::write_fmt::hac97d5cb5753e2ec
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/io/mod.rs:1516
[INFO] [stderr]    6:     0x560327bcc93d - std::sys_common::backtrace::_print::haa20918e28a126c5
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:61
[INFO] [stderr]    7:     0x560327bcc93d - std::sys_common::backtrace::print::h49e772a4873d9076
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:48
[INFO] [stderr]    8:     0x560327bcc93d - std::panicking::default_hook::{{closure}}::hb218b305d15e3f11
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:208
[INFO] [stderr]    9:     0x560327bcc5e8 - std::panicking::default_hook::h63997b7b949e1ce0
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:227
[INFO] [stderr]   10:     0x560327bcd021 - std::panicking::rust_panic_with_hook::hb54f09ccadf64bd3
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:577
[INFO] [stderr]   11:     0x560327b70458 - std::panicking::begin_panic::{{closure}}::h1f313923ed843cfa
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:506
[INFO] [stderr]   12:     0x560327b5b088 - std::sys_common::backtrace::__rust_end_short_backtrace::h0a330e3b2d89be02
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:153
[INFO] [stderr]   13:     0x560327b70383 - std::panicking::begin_panic::hbc872e77068cd202
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:505
[INFO] [stderr]   14:     0x560327b6a596 - mutex::test_mutex_arc_access_in_unwind::{{closure}}::he44e87fa83825fe8
[INFO] [stderr]                                at /opt/rustwide/workdir/tests/mutex.rs:130
[INFO] [stderr]   15:     0x560327b5b0be - std::sys_common::backtrace::__rust_begin_short_backtrace::h4eb9bb8c68b04979
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:137
[INFO] [stderr]   16:     0x560327b740fa - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h9829bb339903b06a
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/thread/mod.rs:464
[INFO] [stderr]   17:     0x560327b6ec4e - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h26e1f7b0102bb482
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:308
[INFO] [stderr]   18:     0x560327b7086a - std::panicking::try::do_call::h498c031d0c9e0a11
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:381
[INFO] [stderr]   19:     0x560327b719ed - __rust_try
[INFO] [stderr]   20:     0x560327b70597 - std::panicking::try::h9698fd699070716e
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:345
[INFO] [stderr]   21:     0x560327b6f07e - std::panic::catch_unwind::ha1b1ded15d0df378
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:382
[INFO] [stderr]   22:     0x560327b73f0e - std::thread::Builder::spawn_unchecked::{{closure}}::hfbb274b47764f1c8
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/thread/mod.rs:463
[INFO] [stderr]   23:     0x560327b610be - core::ops::function::FnOnce::call_once{{vtable.shim}}::hf169b1b74886cc40
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/ops/function.rs:227
[INFO] [stderr]   24:     0x560327bd304a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::hd4d30e37db281e8f
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/alloc/src/boxed.rs:1042
[INFO] [stderr]   25:     0x560327bd304a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h019185a215ba16e4
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/alloc/src/boxed.rs:1042
[INFO] [stderr]   26:     0x560327bd304a - std::sys::unix::thread::Thread::new::thread_start::h33c6d7cf25f9291f
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys/unix/thread.rs:87
[INFO] [stderr]   27:     0x7f4587b18609 - start_thread
[INFO] [stderr]   28:     0x7f4587da3103 - clone
[INFO] [stderr]   29:                0x0 - <unknown>
[INFO] [stdout] test lots_and_lots ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/once-39cb1fd2e6103560
[INFO] [stdout] test test_mutex_arc_access_in_unwind ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test wait ... ok
[INFO] [stdout] test smoke_once ... ok
[INFO] [stdout] test try_get ... ok
[INFO] [stdout] test smoke_once_value ... ok
[INFO] [stdout] test try_no_wait ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rw_lock-1969c7ed86627310
[INFO] [stdout] test stampede_once ... ok
[INFO] [stdout] test panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test smoke ... ok
[INFO] [stdout] test test_into_inner ... ok
[INFO] [stdout] test test_rwlock_try_write ... ok
[INFO] [stdout] test test_upgrade_downgrade ... ok
[INFO] [stdout] test test_rw_try_read ... ok
[INFO] [stdout] test test_force_read_decrement ... ok
[INFO] [stdout] test test_rwlock_unsized ... ok
[INFO] [stdout] test test_into_inner_drop ... ok
[INFO] [stdout] test test_force_write_unlock ... ok
[INFO] [stderr] thread '<unnamed>' panicked at 'explicit panic', tests/rw_lock.rs:73:9
[INFO] [stderr] stack backtrace:
[INFO] [stdout] test test_rw_arc ... ok
[INFO] [stderr]    0:     0x55c60f750830 - std::backtrace_rs::backtrace::libunwind::trace::h7cf3ca97bd83fbab
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stderr]    1:     0x55c60f750830 - std::backtrace_rs::backtrace::trace_unsynchronized::h5a69c674b2d9ea5c
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x55c60f750830 - std::sys_common::backtrace::_print_fmt::hdf72478dfcb50678
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:79
[INFO] [stderr]    3:     0x55c60f750830 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h1e0bdbb35e83deca
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:58
[INFO] [stderr]    4:     0x55c60f772b6c - core::fmt::write::he67f9b17bcb7ee73
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/fmt/mod.rs:1080
[INFO] [stderr]    5:     0x55c60f74d102 - std::io::Write::write_fmt::hac97d5cb5753e2ec
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/io/mod.rs:1516
[INFO] [stderr]    6:     0x55c60f752d4d - std::sys_common::backtrace::_print::haa20918e28a126c5
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:61
[INFO] [stderr]    7:     0x55c60f752d4d - std::sys_common::backtrace::print::h49e772a4873d9076
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:48
[INFO] [stderr]    8:     0x55c60f752d4d - std::panicking::default_hook::{{closure}}::hb218b305d15e3f11
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:208
[INFO] [stderr]    9:     0x55c60f7529f8 - std::panicking::default_hook::h63997b7b949e1ce0
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:227
[INFO] [stderr]   10:     0x55c60f753431 - std::panicking::rust_panic_with_hook::hb54f09ccadf64bd3
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:577
[INFO] [stderr]   11:     0x55c60f6e5298 - std::panicking::begin_panic::{{closure}}::hb589c6251477369f
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:506
[INFO] [stderr]   12:     0x55c60f6f3dd8 - std::sys_common::backtrace::__rust_end_short_backtrace::hcbb039a1dd069874
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:153
[INFO] [stderr]   13:     0x55c60f6e51c3 - std::panicking::begin_panic::h85bdc2f51b768bbf
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:505
[INFO] [stderr]   14:     0x55c60f6ea9b6 - rw_lock::test_rw_access_in_unwind::{{closure}}::hf05a10e473ced65d
[INFO] [stderr]                                at /opt/rustwide/workdir/tests/rw_lock.rs:73
[INFO] [stderr]   15:     0x55c60f6f3e9e - std::sys_common::backtrace::__rust_begin_short_backtrace::heec9d25976979947
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:137
[INFO] [stderr]   16:     0x55c60f6ee4fa - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h5bed28528ecdc979
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/thread/mod.rs:464
[INFO] [stderr]   17:     0x55c60f6e4e2e - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hf4254a0dd2c63a46
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:308
[INFO] [stderr]   18:     0x55c60f6e55ea - std::panicking::try::do_call::he8ebe1fefbfa4d58
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:381
[INFO] [stderr]   19:     0x55c60f6e787d - __rust_try
[INFO] [stderr]   20:     0x55c60f6e53a7 - std::panicking::try::h7af979ec838ab398
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:345
[INFO] [stderr]   21:     0x55c60f6e50fe - std::panic::catch_unwind::h3e6ea8db3eb671f6
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:382
[INFO] [stderr]   22:     0x55c60f6ee04e - std::thread::Builder::spawn_unchecked::{{closure}}::hb4eecfe1300f3253
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/thread/mod.rs:463
[INFO] [stderr]   23:     0x55c60f6e080e - core::ops::function::FnOnce::call_once{{vtable.shim}}::h2ea946b69da64ba2
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/ops/function.rs:227
[INFO] [stderr]   24:     0x55c60f75945a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::hd4d30e37db281e8f
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/alloc/src/boxed.rs:1042
[INFO] [stderr]   25:     0x55c60f75945a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h019185a215ba16e4
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/alloc/src/boxed.rs:1042
[INFO] [stderr]   26:     0x55c60f75945a - std::sys::unix::thread::Thread::new::thread_start::h33c6d7cf25f9291f
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys/unix/thread.rs:87
[INFO] [stderr]   27:     0x7fa3092b6609 - start_thread
[INFO] [stderr]   28:     0x7fa309541103 - clone
[INFO] [stderr]   29:                0x0 - <unknown>
[INFO] [stdout] test test_rw_access_in_unwind ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests once_spin
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test src/mutex.rs - mutex::Mutex<T>::get_mut (line 173) ... ok
[INFO] [stdout] test src/once.rs - once::Once (line 20) ... ok
[INFO] [stdout] test src/once.rs - once::Once<T>::call_once (line 64) ... ok
[INFO] [stdout] test src/mutex.rs - mutex::Mutex<T>::new (line 83) ... ok
[INFO] [stdout] test src/barrier.rs - barrier::BarrierWaitResult::is_leader (line 142) ... ok
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLock (line 44) ... ok
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLock<T>::new (line 77) ... ok
[INFO] [stdout] test src/barrier.rs - barrier::BarrierWaitResult (line 46) ... ok
[INFO] [stdout] test src/mutex.rs - mutex::Mutex<T>::lock (line 122) ... ok
[INFO] [stdout] test src/barrier.rs - barrier::Barrier::new (line 64) ... ok
[INFO] [stdout] test src/mutex.rs - mutex::Mutex (line 42) ... ok
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLock<T>::get_mut (line 299) ... ok
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLock<T>::read (line 152) ... ok
[INFO] [stdout] test src/barrier.rs - barrier::Barrier (line 9) ... ok
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLockUpgradeableGuard::try_upgrade (line 416) ... ok
[INFO] [stdout] test src/mutex.rs - mutex::Mutex (line 19) ... ok
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLock<T>::try_read (line 112) ... ok
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLock<T>::write (line 248) ... ok
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLock<T>::try_write (line 220) ... ok
[INFO] [stdout] test src/barrier.rs - barrier::Barrier::wait (line 94) ... ok
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLockUpgradeableGuard::upgrade (line 433) ... ok
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLockUpgradeableGuard::downgrade (line 453) ... ok
[INFO] [stdout] test src/rw_lock.rs - rw_lock::RwLockWriteGuard::downgrade (line 478) ... 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" "f9e6db5c34a68814a03a318ccb98558c4a2e877da6f64970f8ad9192c6ed29f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9e6db5c34a68814a03a318ccb98558c4a2e877da6f64970f8ad9192c6ed29f3", kill_on_drop: false }`
[INFO] [stdout] f9e6db5c34a68814a03a318ccb98558c4a2e877da6f64970f8ad9192c6ed29f3
