[INFO] fetching crate semaphore 0.4.0...
[INFO] testing semaphore-0.4.0 against 1.45.2 for beta-1.46-1
[INFO] extracting crate semaphore 0.4.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate semaphore 0.4.0 on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate semaphore 0.4.0
[INFO] finished tweaking crates.io crate semaphore 0.4.0
[INFO] tweaked toml for crates.io crate semaphore 0.4.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f151b5ab1c36662ef04c75b9101798bab93930f47307859029d7619954d469f8
[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" "f151b5ab1c36662ef04c75b9101798bab93930f47307859029d7619954d469f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f151b5ab1c36662ef04c75b9101798bab93930f47307859029d7619954d469f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f151b5ab1c36662ef04c75b9101798bab93930f47307859029d7619954d469f8", kill_on_drop: false }`
[INFO] [stdout] f151b5ab1c36662ef04c75b9101798bab93930f47307859029d7619954d469f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9ef4af51410a68f157b62ff9fc357aed5bc724a0673d2789f890ded11d72eed6
[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" "9ef4af51410a68f157b62ff9fc357aed5bc724a0673d2789f890ded11d72eed6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling owning_ref v0.3.3
[INFO] [stderr]    Compiling smallvec v0.6.13
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling parking_lot_core v0.2.14
[INFO] [stderr]    Compiling parking_lot v0.4.8
[INFO] [stderr]    Compiling semaphore v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.52s
[INFO] running `Command { std: "docker" "inspect" "9ef4af51410a68f157b62ff9fc357aed5bc724a0673d2789f890ded11d72eed6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ef4af51410a68f157b62ff9fc357aed5bc724a0673d2789f890ded11d72eed6", kill_on_drop: false }`
[INFO] [stdout] 9ef4af51410a68f157b62ff9fc357aed5bc724a0673d2789f890ded11d72eed6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "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] 4fc618dd338adc5e43e59231dd7741ac5ba1093abe801d0f3c7fa6d85843f012
[INFO] running `Command { std: "docker" "start" "-a" "4fc618dd338adc5e43e59231dd7741ac5ba1093abe801d0f3c7fa6d85843f012", kill_on_drop: false }`
[INFO] [stderr]    Compiling semaphore v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `Command { std: "docker" "inspect" "4fc618dd338adc5e43e59231dd7741ac5ba1093abe801d0f3c7fa6d85843f012", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fc618dd338adc5e43e59231dd7741ac5ba1093abe801d0f3c7fa6d85843f012", kill_on_drop: false }`
[INFO] [stdout] 4fc618dd338adc5e43e59231dd7741ac5ba1093abe801d0f3c7fa6d85843f012
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3d45470cdeb07ad60ad4a5769f8f1e065bd15087f2ad4fdd634e6f2621fdcb93
[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" "3d45470cdeb07ad60ad4a5769f8f1e065bd15087f2ad4fdd634e6f2621fdcb93", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/semaphore-343e9e7de39fa7ec
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test tests::dropping_guard_frees_capacity ... ok
[INFO] [stdout] test tests::first_shutdown_can_extract_resource ... ok
[INFO] [stdout] test tests::fails_to_acquire_when_full ... ok
[INFO] [stdout] test tests::shutdown_complete_when_empty ... ok
[INFO] [stdout] test tests::succeeds_to_acquire_when_empty ... ok
[INFO] [stderr]    Doc-tests semaphore
[INFO] [stdout] test tests::shutdown_complete_when_guard_drops ... ok
[INFO] [stdout] test tests::fails_to_acquire_when_shut_down ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3d45470cdeb07ad60ad4a5769f8f1e065bd15087f2ad4fdd634e6f2621fdcb93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d45470cdeb07ad60ad4a5769f8f1e065bd15087f2ad4fdd634e6f2621fdcb93", kill_on_drop: false }`
[INFO] [stdout] 3d45470cdeb07ad60ad4a5769f8f1e065bd15087f2ad4fdd634e6f2621fdcb93