[INFO] crate fibers_tasque 0.1.2 is already in cache [INFO] extracting crate fibers_tasque 0.1.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/fibers_tasque/0.1.2 [INFO] extracting crate fibers_tasque 0.1.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/fibers_tasque/0.1.2 [INFO] validating manifest of fibers_tasque-0.1.2 on toolchain 1.37.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of fibers_tasque-0.1.2 on toolchain beta-2019-08-13 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing fibers_tasque-0.1.2 [INFO] finished frobbing fibers_tasque-0.1.2 [INFO] frobbed toml for fibers_tasque-0.1.2 written to work/ex/beta-1.38-1/sources/1.37.0/reg/fibers_tasque/0.1.2/Cargo.toml [INFO] started frobbing fibers_tasque-0.1.2 [INFO] finished frobbing fibers_tasque-0.1.2 [INFO] frobbed toml for fibers_tasque-0.1.2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/fibers_tasque/0.1.2/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing fibers_tasque-0.1.2 against 1.37.0 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/fibers_tasque/0.1.2:/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=warn" "-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" "+1.37.0" "build" "--frozen"` [INFO] [stdout] 04d83c7efd3fb8db6347f4516ee8dc4a603dfffb069b2a54621055fe40db4b3c [INFO] running `"docker" "start" "-a" "04d83c7efd3fb8db6347f4516ee8dc4a603dfffb069b2a54621055fe40db4b3c"` [INFO] [stderr] Compiling nom v2.2.1 [INFO] [stderr] Compiling atomic_immut v0.1.4 [INFO] [stderr] Compiling procinfo v0.4.2 [INFO] [stderr] Compiling trackable_derive v0.1.2 [INFO] [stderr] Compiling trackable v0.2.23 [INFO] [stderr] Compiling prometrics v0.1.12 [INFO] [stderr] Compiling tasque v0.1.5 [INFO] [stderr] Compiling fibers_tasque v0.1.2 (/opt/crater/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 26.67s [INFO] running `"docker" "inspect" "04d83c7efd3fb8db6347f4516ee8dc4a603dfffb069b2a54621055fe40db4b3c"` [INFO] running `"docker" "rm" "-f" "04d83c7efd3fb8db6347f4516ee8dc4a603dfffb069b2a54621055fe40db4b3c"` [INFO] [stdout] 04d83c7efd3fb8db6347f4516ee8dc4a603dfffb069b2a54621055fe40db4b3c [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/fibers_tasque/0.1.2:/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=warn" "-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" "+1.37.0" "test" "--frozen" "--no-run"` [INFO] [stdout] 139e66fdd7fa3cd38960b0f798a52cd0617d3568d1968f9063e31528cf59e18b [INFO] running `"docker" "start" "-a" "139e66fdd7fa3cd38960b0f798a52cd0617d3568d1968f9063e31528cf59e18b"` [INFO] [stderr] Compiling fibers_tasque v0.1.2 (/opt/crater/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.79s [INFO] running `"docker" "inspect" "139e66fdd7fa3cd38960b0f798a52cd0617d3568d1968f9063e31528cf59e18b"` [INFO] running `"docker" "rm" "-f" "139e66fdd7fa3cd38960b0f798a52cd0617d3568d1968f9063e31528cf59e18b"` [INFO] [stdout] 139e66fdd7fa3cd38960b0f798a52cd0617d3568d1968f9063e31528cf59e18b [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/fibers_tasque/0.1.2:/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=warn" "-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" "+1.37.0" "test" "--frozen"` [INFO] [stdout] 73084849a056728770e349f1d97b15851179e3dfdbe45a5da919d9f7884b717f [INFO] running `"docker" "start" "-a" "73084849a056728770e349f1d97b15851179e3dfdbe45a5da919d9f7884b717f"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.11s [INFO] [stderr] Running /opt/crater/target/debug/deps/fibers_tasque-da694d29a0392339 [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stderr] thread '' panicked at 'explicit panic', src/lib.rs:40:63 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x560abfb06d9b - backtrace::backtrace::libunwind::trace::hfe5db90796807973 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x560abfb06d9b - backtrace::backtrace::trace_unsynchronized::h34b865a835594335 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x560abfb06d9b - std::sys_common::backtrace::_print::h527254ae44989167 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x560abfb06d9b - std::sys_common::backtrace::print::he85dd5ddddf46503 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x560abfb06d9b - std::panicking::default_hook::{{closure}}::h847a2eb38b396f14 [INFO] [stderr] at src/libstd/panicking.rs:200 [INFO] [stderr] 5: 0x560abfb06a77 - std::panicking::default_hook::h2ca0f9a30a0e206b [INFO] [stderr] at src/libstd/panicking.rs:214 [INFO] [stderr] 6: 0x560abfb07510 - std::panicking::rust_panic_with_hook::hffcefc09751839d1 [INFO] [stderr] at src/libstd/panicking.rs:477 [INFO] [stderr] 7: 0x560abfaf8548 - std::panicking::begin_panic::hab11aff429965e42 [INFO] [stderr] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panicking.rs:411 [INFO] [stderr] 8: 0x560abf9d007d - fibers_tasque::test::it_works::{{closure}}::hcb29de8208b664b0 [INFO] [stderr] at src/lib.rs:40 [INFO] [stderr] 9: 0x560abf9d85d4 - ::async_call::{{closure}}::hecee0d9ef0309c0f [INFO] [stderr] at src/async.rs:27 [INFO] [stderr] 10: 0x560abf9d723b - tasque::task::Task::new::{{closure}}::h79917086572a7e42 [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/tasque-0.1.5/src/task.rs:21 [INFO] [stderr] 11: 0x560abfa43fe3 - as core::ops::function::FnMut>::call_mut::h99d755c2afe85fc0 [INFO] [stderr] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/liballoc/boxed.rs:753 [INFO] [stderr] 12: 0x560abfa17a62 - tasque::task::Task::execute::h9370a7d030cb6f6c [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/tasque-0.1.5/src/task.rs:31 [INFO] [stderr] 13: 0x560abfa49400 - tasque::worker::Worker::run_once::{{closure}}::h67802a911d7f1283 [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/tasque-0.1.5/src/worker.rs:25 [INFO] [stderr] 14: 0x560abfa15586 - prometrics::metrics::histogram::Histogram::time::h7de3eb4898829617 [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/prometrics-0.1.12/src/metrics/histogram.rs:101 [INFO] [stderr] 15: 0x560abfa492ee - tasque::worker::Worker::run_once::h51a55bd9bd007333 [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/tasque-0.1.5/src/worker.rs:25 [INFO] [stderr] 16: 0x560abfa49163 - tasque::worker::Worker::start::{{closure}}::h7abcd50de73f05a6 [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/tasque-0.1.5/src/worker.rs:17 [INFO] [stderr] 17: 0x560abfa48118 - std::sys_common::backtrace::__rust_begin_short_backtrace::h7e6cd10d0f317807 [INFO] [stderr] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/sys_common/backtrace.rs:77 [INFO] [stderr] 18: 0x560abfa25a86 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h1cf72c8626977f0d [INFO] [stderr] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/thread/mod.rs:470 [INFO] [stderr] 19: 0x560abfa15379 - as core::ops::function::FnOnce<()>>::call_once::h51c3c7a395000c16 [INFO] [stderr] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panic.rs:315 [INFO] [stderr] 20: 0x560abfa3fe42 - std::panicking::try::do_call::h3d26ed10366f53d9 [INFO] [stderr] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panicking.rs:296 [INFO] [stderr] 21: 0x560abfb09ada - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:82 [INFO] [stderr] 22: 0x560abfa3fc93 - std::panicking::try::h6d9810665f7597d1 [INFO] [stderr] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panicking.rs:275 [INFO] [stderr] 23: 0x560abfa15ae9 - std::panic::catch_unwind::he74d401b62f676a7 [INFO] [stderr] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panic.rs:394 [INFO] [stderr] 24: 0x560abfa25836 - std::thread::Builder::spawn_unchecked::{{closure}}::hfae2af7533d7016d [INFO] [stderr] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/thread/mod.rs:469 [INFO] [stderr] 25: 0x560abfa40294 - core::ops::function::FnOnce::call_once{{vtable.shim}}::ha3215974722e57e1 [INFO] [stderr] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libcore/ops/function.rs:231 [INFO] [stderr] 26: 0x560abfafc93f - as core::ops::function::FnOnce>::call_once::h42806b83647d4c79 [INFO] [stderr] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/liballoc/boxed.rs:746 [INFO] [stderr] 27: 0x560abfb09230 - as core::ops::function::FnOnce>::call_once::h83c921c8e826dd1d [INFO] [stderr] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/liballoc/boxed.rs:746 [INFO] [stderr] 28: 0x560abfb09230 - std::sys_common::thread::start_thread::h2613204ce513782e [INFO] [stderr] at src/libstd/sys_common/thread.rs:13 [INFO] [stderr] 29: 0x560abfb09230 - std::sys::unix::thread::Thread::new::thread_start::h4570080769500bcd [INFO] [stderr] at src/libstd/sys/unix/thread.rs:79 [INFO] [stderr] 30: 0x7f5ba6b9e4a4 - start_thread [INFO] [stderr] 31: 0x7f5ba66c9d0f - __clone [INFO] [stderr] 32: 0x0 - [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" "73084849a056728770e349f1d97b15851179e3dfdbe45a5da919d9f7884b717f"` [INFO] running `"docker" "rm" "-f" "73084849a056728770e349f1d97b15851179e3dfdbe45a5da919d9f7884b717f"` [INFO] [stdout] 73084849a056728770e349f1d97b15851179e3dfdbe45a5da919d9f7884b717f