[INFO] fetching crate fibers_tasque 0.1.1...
[INFO] extracting crate fibers_tasque 0.1.1 into work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/fibers_tasque/0.1.1
[INFO] extracting crate fibers_tasque 0.1.1 into work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/fibers_tasque/0.1.1
[INFO] validating manifest of fibers_tasque-0.1.1 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 fibers_tasque-0.1.1 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 fibers_tasque-0.1.1
[INFO] finished frobbing fibers_tasque-0.1.1
[INFO] frobbed toml for fibers_tasque-0.1.1 written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/fibers_tasque/0.1.1/Cargo.toml
[INFO] started frobbing fibers_tasque-0.1.1
[INFO] finished frobbing fibers_tasque-0.1.1
[INFO] frobbed toml for fibers_tasque-0.1.1 written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/fibers_tasque/0.1.1/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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] testing fibers_tasque-0.1.1 against try#e212b7d492c96d3837691ba29d32d5f468933fb8 for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-5/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/fibers_tasque/0.1.1:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "build" "--frozen"`
[INFO] [stdout] 442521213bacab2d3f6b85c41db24a776123e94becf0ae21cf983047d398f7b9
[INFO] running `"docker" "start" "-a" "442521213bacab2d3f6b85c41db24a776123e94becf0ae21cf983047d398f7b9"`
[INFO] [stderr]    Compiling procinfo v0.4.2
[INFO] [stderr]    Compiling prometrics v0.1.11
[INFO] [stderr]    Compiling tasque v0.1.4
[INFO] [stderr]    Compiling fibers_tasque v0.1.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.14s
[INFO] running `"docker" "inspect" "442521213bacab2d3f6b85c41db24a776123e94becf0ae21cf983047d398f7b9"`
[INFO] running `"docker" "rm" "-f" "442521213bacab2d3f6b85c41db24a776123e94becf0ae21cf983047d398f7b9"`
[INFO] [stdout] 442521213bacab2d3f6b85c41db24a776123e94becf0ae21cf983047d398f7b9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-5/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/fibers_tasque/0.1.1:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] a33e1a5784bf394fb5158044553008ca509f025e9a139f28c1fbc603ad816a93
[INFO] running `"docker" "start" "-a" "a33e1a5784bf394fb5158044553008ca509f025e9a139f28c1fbc603ad816a93"`
[INFO] [stderr]    Compiling fibers_tasque v0.1.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.36s
[INFO] running `"docker" "inspect" "a33e1a5784bf394fb5158044553008ca509f025e9a139f28c1fbc603ad816a93"`
[INFO] running `"docker" "rm" "-f" "a33e1a5784bf394fb5158044553008ca509f025e9a139f28c1fbc603ad816a93"`
[INFO] [stdout] a33e1a5784bf394fb5158044553008ca509f025e9a139f28c1fbc603ad816a93
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-5/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/fibers_tasque/0.1.1:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen"`
[INFO] [stdout] 6c64fb0f0f96a6c4b00587562486f09f75f7724933eb625766af7740bc96eb78
[INFO] running `"docker" "start" "-a" "6c64fb0f0f96a6c4b00587562486f09f75f7724933eb625766af7740bc96eb78"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/fibers_tasque-bfdb5c4d327ed168
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr] thread '<unnamed>' panicked at 'explicit panic', src/lib.rs:50:63
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x56067498a3ab - backtrace::backtrace::libunwind::trace::h98ebe34dc63b52e3
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x56067498a3ab - backtrace::backtrace::trace_unsynchronized::hd041341a38fdc1ca
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x56067498a3ab - std::sys_common::backtrace::_print::hc8c584aa09df5c15
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr]    3:     0x56067498a3ab - std::sys_common::backtrace::print::h4828f56ae571c1ad
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr]    4:     0x56067498a3ab - std::panicking::default_hook::{{closure}}::h69fce690c9f4b3d3
[INFO] [stderr]                                at src/libstd/panicking.rs:198
[INFO] [stderr]    5:     0x56067498a0ac - std::panicking::default_hook::h231e0e11400caad4
[INFO] [stderr]                                at src/libstd/panicking.rs:212
[INFO] [stderr]    6:     0x56067498ab20 - std::panicking::rust_panic_with_hook::h8c0d039880f491f2
[INFO] [stderr]                                at src/libstd/panicking.rs:475
[INFO] [stderr]    7:     0x5606749779b8 - std::panicking::begin_panic::h9d17574ba64efdb7
[INFO] [stderr]                                at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/panicking.rs:409
[INFO] [stderr]    8:     0x56067485b00d - fibers_tasque::test::it_works::{{closure}}::haa752af841dd9af0
[INFO] [stderr]                                at src/lib.rs:50
[INFO] [stderr]    9:     0x560674858ef4 - <tasque::queue::TaskQueue as fibers_tasque::async::TaskQueueExt>::async_call::{{closure}}::h1b5d9bd0788912ab
[INFO] [stderr]                                at src/async.rs:27
[INFO] [stderr]   10:     0x5606748543cb - tasque::task::Task::new::{{closure}}::h0b6cb97dd89fcd69
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/tasque-0.1.4/src/task.rs:21
[INFO] [stderr]   11:     0x5606748c4663 - <alloc::boxed::Box<F> as core::ops::function::FnMut<A>>::call_mut::h267740c17e0b7145
[INFO] [stderr]                                at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/liballoc/boxed.rs:753
[INFO] [stderr]   12:     0x5606748983a2 - tasque::task::Task::execute::h844a4c802cef67c7
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/tasque-0.1.4/src/task.rs:31
[INFO] [stderr]   13:     0x560674898a50 - tasque::worker::Worker::run_once::{{closure}}::h71b2054265aee55e
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/tasque-0.1.4/src/worker.rs:25
[INFO] [stderr]   14:     0x560674897496 - prometrics::metrics::histogram::Histogram::time::h510405d687644188
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/prometrics-0.1.11/src/metrics/histogram.rs:101
[INFO] [stderr]   15:     0x560674898938 - tasque::worker::Worker::run_once::hc1b73c9ed2e62cb4
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/tasque-0.1.4/src/worker.rs:25
[INFO] [stderr]   16:     0x5606748987c3 - tasque::worker::Worker::start::{{closure}}::hd2f4971590032892
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/tasque-0.1.4/src/worker.rs:17
[INFO] [stderr]   17:     0x5606748b3458 - std::sys_common::backtrace::__rust_begin_short_backtrace::hc602d71d85e8358d
[INFO] [stderr]                                at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/sys_common/backtrace.rs:77
[INFO] [stderr]   18:     0x5606748a8eb6 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h2aed354353b94c91
[INFO] [stderr]                                at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/thread/mod.rs:470
[INFO] [stderr]   19:     0x560674898d49 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::ha76ac9b2472f4042
[INFO] [stderr]                                at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/panic.rs:309
[INFO] [stderr]   20:     0x5606748c2fb2 - std::panicking::try::do_call::h0edcce7c425e01d9
[INFO] [stderr]                                at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/panicking.rs:294
[INFO] [stderr]   21:     0x56067498d70a - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:85
[INFO] [stderr]   22:     0x5606748c2c23 - std::panicking::try::h6ce33de516ca368d
[INFO] [stderr]                                at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/panicking.rs:273
[INFO] [stderr]   23:     0x560674899189 - std::panic::catch_unwind::hdf0b1e0cbcdd7430
[INFO] [stderr]                                at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/panic.rs:388
[INFO] [stderr]   24:     0x5606748a8ca6 - std::thread::Builder::spawn_unchecked::{{closure}}::hffa074df2abf3e76
[INFO] [stderr]                                at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/thread/mod.rs:469
[INFO] [stderr]   25:     0x5606748c4a24 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h01603e357096fc55
[INFO] [stderr]                                at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libcore/ops/function.rs:231
[INFO] [stderr]   26:     0x5606749801cf - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h146d737fe1c8556c
[INFO] [stderr]                                at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/liballoc/boxed.rs:746
[INFO] [stderr]   27:     0x56067498ce50 - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h44ec2de830c4be09
[INFO] [stderr]                                at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/liballoc/boxed.rs:746
[INFO] [stderr]   28:     0x56067498ce50 - std::sys_common::thread::start_thread::hed7ed434f3e17f57
[INFO] [stderr]                                at src/libstd/sys_common/thread.rs:13
[INFO] [stderr]   29:     0x56067498ce50 - std::sys::unix::thread::Thread::new::thread_start::h62b89907378dc35b
[INFO] [stderr]                                at src/libstd/sys/unix/thread.rs:79
[INFO] [stderr]   30:     0x7f1d200944a4 - start_thread
[INFO] [stderr]   31:     0x7f1d1fbbfd0f - __clone
[INFO] [stderr]   32:                0x0 - <unknown>
[INFO] [stdout] test test::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fibers_tasque
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs -  (line 10) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "6c64fb0f0f96a6c4b00587562486f09f75f7724933eb625766af7740bc96eb78"`
[INFO] running `"docker" "rm" "-f" "6c64fb0f0f96a6c4b00587562486f09f75f7724933eb625766af7740bc96eb78"`
[INFO] [stdout] 6c64fb0f0f96a6c4b00587562486f09f75f7724933eb625766af7740bc96eb78