[INFO] fetching crate lock_ext 0.1.0...
[INFO] testing lock_ext-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate lock_ext 0.1.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate lock_ext 0.1.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lock_ext 0.1.0
[INFO] finished tweaking crates.io crate lock_ext 0.1.0
[INFO] tweaked toml for crates.io crate lock_ext 0.1.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 872ad8b6863b7c8267a6cae6309838f1ef3dc1322b73b5abf0fe5882942a231e
[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" "872ad8b6863b7c8267a6cae6309838f1ef3dc1322b73b5abf0fe5882942a231e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "872ad8b6863b7c8267a6cae6309838f1ef3dc1322b73b5abf0fe5882942a231e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "872ad8b6863b7c8267a6cae6309838f1ef3dc1322b73b5abf0fe5882942a231e", kill_on_drop: false }`
[INFO] [stdout] 872ad8b6863b7c8267a6cae6309838f1ef3dc1322b73b5abf0fe5882942a231e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 33524408c6af6b5bba40ace41d44ccd013b3699fc19c66fc6468e59b4f8301d9
[INFO] running `Command { std: "docker" "start" "-a" "33524408c6af6b5bba40ace41d44ccd013b3699fc19c66fc6468e59b4f8301d9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling parking_lot_core v0.7.2
[INFO] [stderr]    Compiling parking_lot v0.10.2
[INFO] [stderr]    Compiling lock_ext v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.82s
[INFO] running `Command { std: "docker" "inspect" "33524408c6af6b5bba40ace41d44ccd013b3699fc19c66fc6468e59b4f8301d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33524408c6af6b5bba40ace41d44ccd013b3699fc19c66fc6468e59b4f8301d9", kill_on_drop: false }`
[INFO] [stdout] 33524408c6af6b5bba40ace41d44ccd013b3699fc19c66fc6468e59b4f8301d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b1c953dd863ea92b4a7bb2135be5275b1ecac1ec952e6b3e8af8c788f8a6e15
[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" "4b1c953dd863ea92b4a7bb2135be5275b1ecac1ec952e6b3e8af8c788f8a6e15", kill_on_drop: false }`
[INFO] [stderr]    Compiling lock_ext v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "4b1c953dd863ea92b4a7bb2135be5275b1ecac1ec952e6b3e8af8c788f8a6e15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b1c953dd863ea92b4a7bb2135be5275b1ecac1ec952e6b3e8af8c788f8a6e15", kill_on_drop: false }`
[INFO] [stdout] 4b1c953dd863ea92b4a7bb2135be5275b1ecac1ec952e6b3e8af8c788f8a6e15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] afc56c9568c259d55c6d451941108f21ea26b01564c3fd7debd072cfeffd49f5
[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" "afc56c9568c259d55c6d451941108f21ea26b01564c3fd7debd072cfeffd49f5", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/lock_ext-d62580b2f6a3eb41
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test::simple ... ok
[INFO] [stdout] test test::rwlock ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests lock_ext
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - RwLockExt (line 66) ... ok
[INFO] [stdout] test src/lib.rs - LockExt (line 20) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "afc56c9568c259d55c6d451941108f21ea26b01564c3fd7debd072cfeffd49f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afc56c9568c259d55c6d451941108f21ea26b01564c3fd7debd072cfeffd49f5", kill_on_drop: false }`
[INFO] [stdout] afc56c9568c259d55c6d451941108f21ea26b01564c3fd7debd072cfeffd49f5