[INFO] crate tasque 0.1.4 is already in cache [INFO] extracting crate tasque 0.1.4 into work/ex/beta-1.38-1/sources/1.37.0/reg/tasque/0.1.4 [INFO] extracting crate tasque 0.1.4 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tasque/0.1.4 [INFO] validating manifest of tasque-0.1.4 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 tasque-0.1.4 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 tasque-0.1.4 [INFO] finished frobbing tasque-0.1.4 [INFO] frobbed toml for tasque-0.1.4 written to work/ex/beta-1.38-1/sources/1.37.0/reg/tasque/0.1.4/Cargo.toml [INFO] started frobbing tasque-0.1.4 [INFO] finished frobbing tasque-0.1.4 [INFO] frobbed toml for tasque-0.1.4 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tasque/0.1.4/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] [stderr] Downloading crates ... [INFO] [stderr] Downloaded prometrics v0.1.12 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] testing tasque-0.1.4 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/tasque/0.1.4:/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] 01c6379dc4bb4fabf1c69161723a4ca2f0c913d99b09ecd59be6dc461c39745f [INFO] running `"docker" "start" "-a" "01c6379dc4bb4fabf1c69161723a4ca2f0c913d99b09ecd59be6dc461c39745f"` [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 prometrics v0.1.12 [INFO] [stderr] Compiling tasque v0.1.4 (/opt/crater/workdir) [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/task.rs:8:15 [INFO] [stderr] | [INFO] [stderr] 8 | task: Box, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() + Send + 'static` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(bare_trait_objects)] on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 17.51s [INFO] running `"docker" "inspect" "01c6379dc4bb4fabf1c69161723a4ca2f0c913d99b09ecd59be6dc461c39745f"` [INFO] running `"docker" "rm" "-f" "01c6379dc4bb4fabf1c69161723a4ca2f0c913d99b09ecd59be6dc461c39745f"` [INFO] [stdout] 01c6379dc4bb4fabf1c69161723a4ca2f0c913d99b09ecd59be6dc461c39745f [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/tasque/0.1.4:/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] 9414ae42bda5226c7dd654f1a26cc8e37ebe9584fbb54c335a370c682ce4ac4f [INFO] running `"docker" "start" "-a" "9414ae42bda5226c7dd654f1a26cc8e37ebe9584fbb54c335a370c682ce4ac4f"` [INFO] [stderr] Compiling tasque v0.1.4 (/opt/crater/workdir) [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/task.rs:8:15 [INFO] [stderr] | [INFO] [stderr] 8 | task: Box, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() + Send + 'static` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(bare_trait_objects)] on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.27s [INFO] running `"docker" "inspect" "9414ae42bda5226c7dd654f1a26cc8e37ebe9584fbb54c335a370c682ce4ac4f"` [INFO] running `"docker" "rm" "-f" "9414ae42bda5226c7dd654f1a26cc8e37ebe9584fbb54c335a370c682ce4ac4f"` [INFO] [stdout] 9414ae42bda5226c7dd654f1a26cc8e37ebe9584fbb54c335a370c682ce4ac4f [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/tasque/0.1.4:/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] 28e8a76ddd733eb1179fb78946d1e6d909fd4440a791453b01bea596a9b124d8 [INFO] running `"docker" "start" "-a" "28e8a76ddd733eb1179fb78946d1e6d909fd4440a791453b01bea596a9b124d8"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running /opt/crater/target/debug/deps/tasque-bd6a14f783ecc8f3 [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stderr] thread '' panicked at 'explicit panic', src/lib.rs:84:26 [INFO] [stderr] stack backtrace: [INFO] [stdout] test tests::multiple_workers_works ... ok [INFO] [stderr] 0: 0x55e23d350ffb - 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: 0x55e23d350ffb - 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: 0x55e23d350ffb - std::sys_common::backtrace::_print::h527254ae44989167 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x55e23d350ffb - std::sys_common::backtrace::print::he85dd5ddddf46503 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x55e23d350ffb - std::panicking::default_hook::{{closure}}::h847a2eb38b396f14 [INFO] [stderr] at src/libstd/panicking.rs:200 [INFO] [stderr] 5: 0x55e23d350cd7 - std::panicking::default_hook::h2ca0f9a30a0e206b [INFO] [stderr] at src/libstd/panicking.rs:214 [INFO] [stderr] 6: 0x55e23d351770 - std::panicking::rust_panic_with_hook::hffcefc09751839d1 [INFO] [stderr] at src/libstd/panicking.rs:477 [INFO] [stderr] 7: 0x55e23d344368 - std::panicking::begin_panic::hd4cb45c7beb9f829 [INFO] [stderr] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panicking.rs:411 [INFO] [stderr] 8: 0x55e23d27c48d - tasque::tests::worker_restart_works::{{closure}}::ha18bb17f860c60a3 [INFO] [stderr] at src/lib.rs:84 [INFO] [stderr] 9: 0x55e23d2834f9 - tasque::task::Task::new::{{closure}}::hbd8394c15705f00c [INFO] [stderr] at src/task.rs:21 [INFO] [stderr] 10: 0x55e23d2b2c03 - as core::ops::function::FnMut>::call_mut::h3516dea7044e60f4 [INFO] [stderr] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/liballoc/boxed.rs:753 [INFO] [stderr] 11: 0x55e23d28361e - tasque::task::Task::execute::h66ccf0748186c04a [INFO] [stderr] at src/task.rs:31 [INFO] [stderr] 12: 0x55e23d275410 - tasque::worker::Worker::run_once::{{closure}}::ha116cbb05664b428 [INFO] [stderr] at src/worker.rs:25 [INFO] [stderr] 13: 0x55e23d272b36 - prometrics::metrics::histogram::Histogram::time::h5f3aba98dc55676d [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/prometrics-0.1.12/src/metrics/histogram.rs:101 [INFO] [stderr] 14: 0x55e23d275305 - tasque::worker::Worker::run_once::h4967eb19350e1676 [INFO] [stderr] at src/worker.rs:25 [INFO] [stderr] 15: 0x55e23d275183 - tasque::worker::Worker::start::{{closure}}::hc439b9575ea64328 [INFO] [stderr] at src/worker.rs:17 [INFO] [stderr] 16: 0x55e23d2a6a38 - std::sys_common::backtrace::__rust_begin_short_backtrace::h9cdbc86276fcd5de [INFO] [stderr] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/sys_common/backtrace.rs:77 [INFO] [stderr] 17: 0x55e23d27da75 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::ha03842322cd37d1a [INFO] [stderr] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/thread/mod.rs:470 [INFO] [stderr] 18: 0x55e23d286788 - as core::ops::function::FnOnce<()>>::call_once::h2c9854b4f114bc31 [INFO] [stderr] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panic.rs:315 [INFO] [stderr] 19: 0x55e23d2b01c0 - std::panicking::try::do_call::h7c809e2ae835fbaa [INFO] [stderr] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panicking.rs:296 [INFO] [stderr] 20: 0x55e23d353cea - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:82 [INFO] [stderr] 21: 0x55e23d2afdb0 - std::panicking::try::h5f844b454970c1a8 [INFO] [stderr] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panicking.rs:275 [INFO] [stderr] 22: 0x55e23d286928 - std::panic::catch_unwind::hcb3909990ed081bf [INFO] [stderr] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panic.rs:394 [INFO] [stderr] 23: 0x55e23d27d502 - std::thread::Builder::spawn_unchecked::{{closure}}::h16edcbff8b1cbe9e [INFO] [stderr] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/thread/mod.rs:469 [INFO] [stderr] 24: 0x55e23d27dbb3 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h22575852dc03c095 [INFO] [stderr] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libcore/ops/function.rs:231 [INFO] [stderr] 25: 0x55e23d346baf - as core::ops::function::FnOnce>::call_once::h42806b83647d4c79 [INFO] [stderr] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/liballoc/boxed.rs:746 [INFO] [stderr] 26: 0x55e23d353440 - as core::ops::function::FnOnce>::call_once::h83c921c8e826dd1d [INFO] [stderr] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/liballoc/boxed.rs:746 [INFO] [stderr] 27: 0x55e23d353440 - std::sys_common::thread::start_thread::h2613204ce513782e [INFO] [stderr] at src/libstd/sys_common/thread.rs:13 [INFO] [stderr] 28: 0x55e23d353440 - std::sys::unix::thread::Thread::new::thread_start::h4570080769500bcd [INFO] [stderr] at src/libstd/sys/unix/thread.rs:79 [INFO] [stderr] 29: 0x7f06c11854a4 - start_thread [INFO] [stderr] 30: 0x7f06c0cb0d0f - __clone [INFO] [stderr] 31: 0x0 - [INFO] [stdout] test tests::worker_restart_works ... ok [INFO] [stdout] test tests::single_worker_works ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Doc-tests tasque [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test src/queue.rs - queue::TaskQueueBuilder (line 15) ... ok [INFO] [stdout] test src/queue.rs - queue::TaskQueue (line 85) ... ok [INFO] [stdout] test src/lib.rs - (line 7) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "28e8a76ddd733eb1179fb78946d1e6d909fd4440a791453b01bea596a9b124d8"` [INFO] running `"docker" "rm" "-f" "28e8a76ddd733eb1179fb78946d1e6d909fd4440a791453b01bea596a9b124d8"` [INFO] [stdout] 28e8a76ddd733eb1179fb78946d1e6d909fd4440a791453b01bea596a9b124d8