[INFO] fetching crate len-caching-lock 0.1.1...
[INFO] testing len-caching-lock-0.1.1 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] extracting crate len-caching-lock 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate len-caching-lock 0.1.1 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate len-caching-lock 0.1.1
[INFO] finished tweaking crates.io crate len-caching-lock 0.1.1
[INFO] tweaked toml for crates.io crate len-caching-lock 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", 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] 6bb8821ce3f9900530de83b197cf3b69c4089a6a150d6abbbe2f2eb1b21ac8d2
[INFO] running `Command { std: "docker" "start" "-a" "6bb8821ce3f9900530de83b197cf3b69c4089a6a150d6abbbe2f2eb1b21ac8d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6bb8821ce3f9900530de83b197cf3b69c4089a6a150d6abbbe2f2eb1b21ac8d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bb8821ce3f9900530de83b197cf3b69c4089a6a150d6abbbe2f2eb1b21ac8d2", kill_on_drop: false }`
[INFO] [stdout] 6bb8821ce3f9900530de83b197cf3b69c4089a6a150d6abbbe2f2eb1b21ac8d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", 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] a3a145c12157a46914958ac9a461572822b0ac99ab19b7dc248cc7c3c1d0cd0e
[INFO] running `Command { std: "docker" "start" "-a" "a3a145c12157a46914958ac9a461572822b0ac99ab19b7dc248cc7c3c1d0cd0e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling len-caching-lock v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.69s
[INFO] running `Command { std: "docker" "inspect" "a3a145c12157a46914958ac9a461572822b0ac99ab19b7dc248cc7c3c1d0cd0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3a145c12157a46914958ac9a461572822b0ac99ab19b7dc248cc7c3c1d0cd0e", kill_on_drop: false }`
[INFO] [stdout] a3a145c12157a46914958ac9a461572822b0ac99ab19b7dc248cc7c3c1d0cd0e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", 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] 40f60304488d9e17ce2a2405a8c1a3b1604618e8fac675e3f207b5a6b504a690
[INFO] running `Command { std: "docker" "start" "-a" "40f60304488d9e17ce2a2405a8c1a3b1604618e8fac675e3f207b5a6b504a690", kill_on_drop: false }`
[INFO] [stderr]    Compiling len-caching-lock v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "40f60304488d9e17ce2a2405a8c1a3b1604618e8fac675e3f207b5a6b504a690", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40f60304488d9e17ce2a2405a8c1a3b1604618e8fac675e3f207b5a6b504a690", kill_on_drop: false }`
[INFO] [stdout] 40f60304488d9e17ce2a2405a8c1a3b1604618e8fac675e3f207b5a6b504a690
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b6b1957d57870f8a4a5b469b795cfed57fb3ed7089cb6ecb5fbc03c0616660a9
[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" "b6b1957d57870f8a4a5b469b795cfed57fb3ed7089cb6ecb5fbc03c0616660a9", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/len_caching_lock-ef43803493d0c27a)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test mutex::tests::caches_len ... ok
[INFO] [stdout] test mutex::tests::works_with_vec ... ok
[INFO] [stdout] test mutex::tests::works_with_vecdeque ... ok
[INFO] [stdout] test rwlock::tests::caches_len ... ok
[INFO] [stdout] test rwlock::tests::read_works ... ok
[INFO] [stdout] test rwlock::tests::works_with_vec ... ok
[INFO] [stdout] test rwlock::tests::works_with_vecdeque ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests len-caching-lock
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 27) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.30s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b6b1957d57870f8a4a5b469b795cfed57fb3ed7089cb6ecb5fbc03c0616660a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6b1957d57870f8a4a5b469b795cfed57fb3ed7089cb6ecb5fbc03c0616660a9", kill_on_drop: false }`
[INFO] [stdout] b6b1957d57870f8a4a5b469b795cfed57fb3ed7089cb6ecb5fbc03c0616660a9