[INFO] crate fibers_tasque 0.1.2 is already in cache [INFO] testing fibers_tasque-0.1.2 against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274 [INFO] extracting crate fibers_tasque 0.1.2 into /workspace/builds/worker-3/source [INFO] validating manifest of crates.io crate fibers_tasque 0.1.2 on toolchain 41997647ba6a77908f6ef64401414feb00bccf16 [INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking crates.io crate fibers_tasque 0.1.2 [INFO] finished tweaking crates.io crate fibers_tasque 0.1.2 [INFO] tweaked toml for crates.io crate fibers_tasque 0.1.2 written to /workspace/builds/worker-3/source/Cargo.toml [INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] c81fe98d42ed5cd34b7ae8c5e61110c48cf85f4f3c8306f9521612409d1f327d [INFO] running `"docker" "start" "-a" "c81fe98d42ed5cd34b7ae8c5e61110c48cf85f4f3c8306f9521612409d1f327d"` [INFO] [stderr] Compiling libc v0.2.69 [INFO] [stderr] Compiling proc-macro2 v1.0.10 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling nom v2.2.1 [INFO] [stderr] Compiling atomic_immut v0.1.4 [INFO] [stderr] Compiling slab v0.4.2 [INFO] [stderr] Compiling splay_tree v0.2.10 [INFO] [stderr] Compiling nbchan v0.1.3 [INFO] [stderr] Compiling futures v0.1.29 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling procinfo v0.4.2 [INFO] [stderr] Compiling quote v1.0.3 [INFO] [stderr] Compiling syn v1.0.17 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling num_cpus v1.13.0 [INFO] [stderr] Compiling net2 v0.2.33 [INFO] [stderr] Compiling mio v0.6.21 [INFO] [stderr] Compiling fibers v0.1.13 [INFO] [stderr] Compiling trackable_derive v0.1.3 [INFO] [stderr] Compiling trackable v0.2.23 [INFO] [stderr] Compiling prometrics v0.1.13 [INFO] [stderr] Compiling tasque v0.1.5 [INFO] [stderr] Compiling fibers_tasque v0.1.2 (/opt/rustwide/workdir) [INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string() [INFO] [stderr] --> src/async.rs:55:14 [INFO] [stderr] | [INFO] [stderr] 55 | self.description().fmt(f) [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 39.48s [INFO] running `"docker" "inspect" "c81fe98d42ed5cd34b7ae8c5e61110c48cf85f4f3c8306f9521612409d1f327d"` [INFO] running `"docker" "rm" "-f" "c81fe98d42ed5cd34b7ae8c5e61110c48cf85f4f3c8306f9521612409d1f327d"` [INFO] [stdout] c81fe98d42ed5cd34b7ae8c5e61110c48cf85f4f3c8306f9521612409d1f327d [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen" "--no-run"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 3b44c9573efc81bd4438819861e917550e607ffe9a5b3c182b82ad1dc2939b92 [INFO] running `"docker" "start" "-a" "3b44c9573efc81bd4438819861e917550e607ffe9a5b3c182b82ad1dc2939b92"` [INFO] [stderr] Compiling fibers_tasque v0.1.2 (/opt/rustwide/workdir) [INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string() [INFO] [stderr] --> src/async.rs:55:14 [INFO] [stderr] | [INFO] [stderr] 55 | self.description().fmt(f) [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string() [INFO] [stderr] --> src/async.rs:55:14 [INFO] [stderr] | [INFO] [stderr] 55 | self.description().fmt(f) [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 2.09s [INFO] running `"docker" "inspect" "3b44c9573efc81bd4438819861e917550e607ffe9a5b3c182b82ad1dc2939b92"` [INFO] running `"docker" "rm" "-f" "3b44c9573efc81bd4438819861e917550e607ffe9a5b3c182b82ad1dc2939b92"` [INFO] [stdout] 3b44c9573efc81bd4438819861e917550e607ffe9a5b3c182b82ad1dc2939b92 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 8ad6b9ab22544c87b4802bc17cbf1607d68da6aea3f9eab92d5ed6dc8c1154cc [INFO] running `"docker" "start" "-a" "8ad6b9ab22544c87b4802bc17cbf1607d68da6aea3f9eab92d5ed6dc8c1154cc"` [INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string() [INFO] [stderr] --> src/async.rs:55:14 [INFO] [stderr] | [INFO] [stderr] 55 | self.description().fmt(f) [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string() [INFO] [stderr] --> src/async.rs:55:14 [INFO] [stderr] | [INFO] [stderr] 55 | self.description().fmt(f) [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.24s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/fibers_tasque-0f92573c26196357 [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: 0x55dee292b2c4 - backtrace::backtrace::libunwind::trace::h61666fa4b9834a45 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86 [INFO] [stderr] 1: 0x55dee292b2c4 - backtrace::backtrace::trace_unsynchronized::h01d3725fb5da8653 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x55dee292b2c4 - std::sys_common::backtrace::_print_fmt::h5c7c4751bc296f90 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:78 [INFO] [stderr] 3: 0x55dee292b2c4 - ::fmt::h7729313ad2d729c7 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stderr] 4: 0x55dee2953fec - core::fmt::write::hb0049f6c12bdaffc [INFO] [stderr] at src/libcore/fmt/mod.rs:1069 [INFO] [stderr] 5: 0x55dee2927af3 - std::io::Write::write_fmt::hfb486fa6ccb90f14 [INFO] [stderr] at src/libstd/io/mod.rs:1504 [INFO] [stderr] 6: 0x55dee292dba5 - std::sys_common::backtrace::_print::ha087cac92e84a414 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stderr] 7: 0x55dee292dba5 - std::sys_common::backtrace::print::h6b013d3bfe6cbcb8 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stderr] 8: 0x55dee292dba5 - std::panicking::default_hook::{{closure}}::h016d7de02def2736 [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 9: 0x55dee292d8e2 - std::panicking::default_hook::h9386f7e484840463 [INFO] [stderr] at src/libstd/panicking.rs:218 [INFO] [stderr] 10: 0x55dee292e202 - std::panicking::rust_panic_with_hook::h3846eb1b2e5a9312 [INFO] [stderr] at src/libstd/panicking.rs:511 [INFO] [stderr] 11: 0x55dee29176b1 - std::panicking::begin_panic::ha518aba066134835 [INFO] [stderr] at /rustc/41997647ba6a77908f6ef64401414feb00bccf16/src/libstd/panicking.rs:438 [INFO] [stderr] 12: 0x55dee27fe4dd - fibers_tasque::test::it_works::{{closure}}::he12b526c272e3ee9 [INFO] [stderr] at src/lib.rs:40 [INFO] [stderr] 13: 0x55dee27fb853 - ::async_call::{{closure}}::h8d1e950ae762c2e3 [INFO] [stderr] at src/async.rs:27 [INFO] [stderr] 14: 0x55dee27fb45a - tasque::task::Task::new::{{closure}}::h239a2971a89c8abd [INFO] [stderr] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tasque-0.1.5/src/task.rs:21 [INFO] [stderr] 15: 0x55dee2853cc6 - as core::ops::function::FnMut>::call_mut::hd7d32c975c805598 [INFO] [stderr] at /rustc/41997647ba6a77908f6ef64401414feb00bccf16/src/liballoc/boxed.rs:1015 [INFO] [stderr] 16: 0x55dee2867c31 - tasque::task::Task::execute::h07dfe4e0e0858c02 [INFO] [stderr] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tasque-0.1.5/src/task.rs:31 [INFO] [stderr] 17: 0x55dee2858dd0 - tasque::worker::Worker::run_once::{{closure}}::h4aee26765683ca70 [INFO] [stderr] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tasque-0.1.5/src/worker.rs:25 [INFO] [stderr] 18: 0x55dee2867eee - prometrics::metrics::histogram::Histogram::time::h60de8d79637b18cc [INFO] [stderr] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/prometrics-0.1.13/src/metrics/histogram.rs:102 [INFO] [stderr] 19: 0x55dee2858cee - tasque::worker::Worker::run_once::h5b3f1060d3014f04 [INFO] [stderr] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tasque-0.1.5/src/worker.rs:25 [INFO] [stderr] 20: 0x55dee2858b83 - tasque::worker::Worker::start::{{closure}}::ha37553b09dab17be [INFO] [stderr] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tasque-0.1.5/src/worker.rs:17 [INFO] [stderr] 21: 0x55dee284e3e5 - std::sys_common::backtrace::__rust_begin_short_backtrace::hac7119c65bc435fe [INFO] [stderr] at /rustc/41997647ba6a77908f6ef64401414feb00bccf16/src/libstd/sys_common/backtrace.rs:130 [INFO] [stderr] 22: 0x55dee283eac6 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h940481c046ef8c4d [INFO] [stderr] at /rustc/41997647ba6a77908f6ef64401414feb00bccf16/src/libstd/thread/mod.rs:475 [INFO] [stderr] 23: 0x55dee284e2c9 - as core::ops::function::FnOnce<()>>::call_once::h42a165e128b7c595 [INFO] [stderr] at /rustc/41997647ba6a77908f6ef64401414feb00bccf16/src/libstd/panic.rs:318 [INFO] [stderr] 24: 0x55dee284e932 - std::panicking::try::do_call::hefe3bdcae9fcbd99 [INFO] [stderr] at /rustc/41997647ba6a77908f6ef64401414feb00bccf16/src/libstd/panicking.rs:331 [INFO] [stderr] 25: 0x55dee28500dd - __rust_try [INFO] [stderr] 26: 0x55dee284e7fd - std::panicking::try::hb92abaea609cf288 [INFO] [stderr] at /rustc/41997647ba6a77908f6ef64401414feb00bccf16/src/libstd/panicking.rs:274 [INFO] [stderr] 27: 0x55dee284e5e9 - std::panic::catch_unwind::heea3f0b13b609e58 [INFO] [stderr] at /rustc/41997647ba6a77908f6ef64401414feb00bccf16/src/libstd/panic.rs:394 [INFO] [stderr] 28: 0x55dee283e881 - std::thread::Builder::spawn_unchecked::{{closure}}::hed439b18f176eeb7 [INFO] [stderr] at /rustc/41997647ba6a77908f6ef64401414feb00bccf16/src/libstd/thread/mod.rs:474 [INFO] [stderr] 29: 0x55dee283ecbf - core::ops::function::FnOnce::call_once{{vtable.shim}}::h02d0795e8da29aa2 [INFO] [stderr] at /rustc/41997647ba6a77908f6ef64401414feb00bccf16/src/libcore/ops/function.rs:232 [INFO] [stderr] 30: 0x55dee292168f - as core::ops::function::FnOnce>::call_once::h7deaeeba480c6ce2 [INFO] [stderr] at /rustc/41997647ba6a77908f6ef64401414feb00bccf16/src/liballoc/boxed.rs:1008 [INFO] [stderr] 31: 0x55dee2934a63 - as core::ops::function::FnOnce>::call_once::h968b1dfb87756523 [INFO] [stderr] at /rustc/41997647ba6a77908f6ef64401414feb00bccf16/src/liballoc/boxed.rs:1008 [INFO] [stderr] 32: 0x55dee2934a63 - std::sys::unix::thread::Thread::new::thread_start::h2399addeb6370595 [INFO] [stderr] at src/libstd/sys/unix/thread.rs:87 [INFO] [stderr] 33: 0x7f785d4496db - start_thread [INFO] [stderr] 34: 0x7f785cf5a88f - __clone [INFO] [stderr] 35: 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" "8ad6b9ab22544c87b4802bc17cbf1607d68da6aea3f9eab92d5ed6dc8c1154cc"` [INFO] running `"docker" "rm" "-f" "8ad6b9ab22544c87b4802bc17cbf1607d68da6aea3f9eab92d5ed6dc8c1154cc"` [INFO] [stdout] 8ad6b9ab22544c87b4802bc17cbf1607d68da6aea3f9eab92d5ed6dc8c1154cc