[INFO] fetching crate fast-async-mutex 0.6.7...
[INFO] testing fast-async-mutex-0.6.7 against try#d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 for pr-86479
[INFO] extracting crate fast-async-mutex 0.6.7 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate fast-async-mutex 0.6.7 on toolchain d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fast-async-mutex 0.6.7
[INFO] finished tweaking crates.io crate fast-async-mutex 0.6.7
[INFO] tweaked toml for crates.io crate fast-async-mutex 0.6.7 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bytes v0.6.0
[INFO] [stderr]   Downloaded tokio-macros v0.3.2
[INFO] [stderr]   Downloaded tokio v0.3.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c5ef5cf1db477da412dadf910b2883c5391360f2201c6e5fbd9972bf477ed03d
[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" "c5ef5cf1db477da412dadf910b2883c5391360f2201c6e5fbd9972bf477ed03d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c5ef5cf1db477da412dadf910b2883c5391360f2201c6e5fbd9972bf477ed03d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5ef5cf1db477da412dadf910b2883c5391360f2201c6e5fbd9972bf477ed03d", kill_on_drop: false }`
[INFO] [stdout] c5ef5cf1db477da412dadf910b2883c5391360f2201c6e5fbd9972bf477ed03d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=forbid" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f9f227d26aeb02ae548cabd4c70590a9358a75fe3ee4d2d8bf67d5bc08eaef94
[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" "f9f227d26aeb02ae548cabd4c70590a9358a75fe3ee4d2d8bf67d5bc08eaef94", kill_on_drop: false }`
[INFO] [stderr]    Compiling fast-async-mutex v0.6.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "f9f227d26aeb02ae548cabd4c70590a9358a75fe3ee4d2d8bf67d5bc08eaef94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9f227d26aeb02ae548cabd4c70590a9358a75fe3ee4d2d8bf67d5bc08eaef94", kill_on_drop: false }`
[INFO] [stdout] f9f227d26aeb02ae548cabd4c70590a9358a75fe3ee4d2d8bf67d5bc08eaef94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=forbid" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a45837f6554ce406c370bc144c93762f7a41ea24267a0fc53b3f00cb04392e68
[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" "a45837f6554ce406c370bc144c93762f7a41ea24267a0fc53b3f00cb04392e68", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling futures-channel v0.3.16
[INFO] [stderr]    Compiling futures-sink v0.3.16
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling futures-io v0.3.16
[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]    Compiling tokio v0.3.7
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling instant v0.1.10
[INFO] [stderr]    Compiling lock_api v0.4.4
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling mio v0.7.13
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling tokio-macros v0.3.2
[INFO] [stderr]    Compiling futures-executor v0.3.16
[INFO] [stderr]    Compiling futures v0.3.16
[INFO] [stderr]    Compiling fast-async-mutex v0.6.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 49.29s
[INFO] running `Command { std: "docker" "inspect" "a45837f6554ce406c370bc144c93762f7a41ea24267a0fc53b3f00cb04392e68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a45837f6554ce406c370bc144c93762f7a41ea24267a0fc53b3f00cb04392e68", kill_on_drop: false }`
[INFO] [stdout] a45837f6554ce406c370bc144c93762f7a41ea24267a0fc53b3f00cb04392e68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=forbid" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 13a9801e745cde02d48ecd6aa4597c7fd047b11448fb875e78f35ed3fa0cf773
[INFO] running `Command { std: "docker" "start" "-a" "13a9801e745cde02d48ecd6aa4597c7fd047b11448fb875e78f35ed3fa0cf773", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/fast_async_mutex-475760b7f9502fb8)
[INFO] [stdout] 
[INFO] [stdout] running 30 tests
[INFO] [stdout] test mutex::tests::test_timeout ... ok
[INFO] [stdout] test mutex_ordered::tests::test_timeout ... ok
[INFO] [stdout] test mutex_ordered::tests::test_overflow ... ok
[INFO] [stdout] test mutex::tests::test_container ... ok
[INFO] [stdout] test mutex_ordered::tests::test_container ... ok
[INFO] [stdout] test rwlock::tests::multithreading_test ... ok
[INFO] [stdout] test mutex_ordered::tests::multithreading_test ... ok
[INFO] [stdout] test rwlock_ordered::tests::multithreading_test ... ok
[INFO] [stdout] test rwlock::tests::test_mutex ... ok
[INFO] [stdout] test mutex::tests::multithreading_test ... ok
[INFO] [stdout] test rwlock::tests::test_container ... ok
[INFO] [stdout] test mutex_ordered::tests::test_owned_mutex ... ok
[INFO] [stdout] test mutex::tests::test_mutex ... ok
[INFO] [stdout] test mutex_ordered::tests::test_mutex ... ok
[INFO] [stdout] test rwlock_ordered::tests::test_concurrent_reading ... ok
[INFO] [stdout] test rwlock::tests::test_owned_mutex ... ok
[INFO] [stdout] test rwlock_ordered::tests::test_container ... ok
[INFO] [stdout] test rwlock_ordered::tests::test_overflow ... ok
[INFO] [stdout] test rwlock::tests::test_concurrent_reading_writing ... ok
[INFO] [stdout] test rwlock::tests::test_concurrent_reading ... ok
[INFO] [stdout] test mutex::tests::test_owned_mutex ... ok
[INFO] [stdout] test rwlock::tests::test_timeout ... ok
[INFO] [stdout] test rwlock_ordered::tests::test_concurrent_reading_writing ... ok
[INFO] [stdout] test rwlock_ordered::tests::test_timeout ... ok
[INFO] [stdout] test rwlock_ordered::tests::test_mutex ... ok
[INFO] [stdout] test rwlock_ordered::tests::test_owned_mutex ... ok
[INFO] [stdout] test mutex_ordered::tests::test_mutex_delay ... ok
[INFO] [stdout] test mutex::tests::test_mutex_delay ... ok
[INFO] [stdout] test rwlock::tests::test_mutex_delay ... ok
[INFO] [stderr]    Doc-tests fast-async-mutex
[INFO] [stdout] test rwlock_ordered::tests::test_mutex_delay ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 30 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 7.22s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name fast_async_mutex --test /opt/rustwide/workdir/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern fast_async_mutex=/opt/rustwide/target/debug/deps/libfast_async_mutex-3100b72e8027d016.rlib --extern futures=/opt/rustwide/target/debug/deps/libfutures-9fe82132aca3dc8b.rlib --extern tokio=/opt/rustwide/target/debug/deps/libtokio-6cfa49518afedfa9.rlib -C embed-bitcode=no --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "13a9801e745cde02d48ecd6aa4597c7fd047b11448fb875e78f35ed3fa0cf773", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13a9801e745cde02d48ecd6aa4597c7fd047b11448fb875e78f35ed3fa0cf773", kill_on_drop: false }`
[INFO] [stdout] 13a9801e745cde02d48ecd6aa4597c7fd047b11448fb875e78f35ed3fa0cf773