[INFO] fetching crate buffer-pool 0.0.0...
[INFO] testing buffer-pool-0.0.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate buffer-pool 0.0.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate buffer-pool 0.0.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate buffer-pool 0.0.0
[INFO] finished tweaking crates.io crate buffer-pool 0.0.0
[INFO] tweaked toml for crates.io crate buffer-pool 0.0.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e42e07e859eb7bc77b1481bbd515455e0b2d809c5443c81ee6e71e6a758ae52a
[INFO] running `Command { std: "docker" "start" "-a" "e42e07e859eb7bc77b1481bbd515455e0b2d809c5443c81ee6e71e6a758ae52a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e42e07e859eb7bc77b1481bbd515455e0b2d809c5443c81ee6e71e6a758ae52a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e42e07e859eb7bc77b1481bbd515455e0b2d809c5443c81ee6e71e6a758ae52a", kill_on_drop: false }`
[INFO] [stdout] e42e07e859eb7bc77b1481bbd515455e0b2d809c5443c81ee6e71e6a758ae52a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d81687d2ad8182e2ca5618a2271d2c6ab2b379c8e4249fceb4acd49119815f97
[INFO] running `Command { std: "docker" "start" "-a" "d81687d2ad8182e2ca5618a2271d2c6ab2b379c8e4249fceb4acd49119815f97", kill_on_drop: false }`
[INFO] [stderr]    Compiling buffer-pool v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "d81687d2ad8182e2ca5618a2271d2c6ab2b379c8e4249fceb4acd49119815f97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d81687d2ad8182e2ca5618a2271d2c6ab2b379c8e4249fceb4acd49119815f97", kill_on_drop: false }`
[INFO] [stdout] d81687d2ad8182e2ca5618a2271d2c6ab2b379c8e4249fceb4acd49119815f97
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d227413272a387cd714da53ca9baca44633fd7a8fd5ffa734086064a0a835788
[INFO] running `Command { std: "docker" "start" "-a" "d227413272a387cd714da53ca9baca44633fd7a8fd5ffa734086064a0a835788", kill_on_drop: false }`
[INFO] [stderr]    Compiling buffer-pool v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "d227413272a387cd714da53ca9baca44633fd7a8fd5ffa734086064a0a835788", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d227413272a387cd714da53ca9baca44633fd7a8fd5ffa734086064a0a835788", kill_on_drop: false }`
[INFO] [stdout] d227413272a387cd714da53ca9baca44633fd7a8fd5ffa734086064a0a835788
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d8395b31f3d0d7c94d509fcac0d6d4f0cd5c515b055766fdeb1d1d5443264126
[INFO] running `Command { std: "docker" "start" "-a" "d8395b31f3d0d7c94d509fcac0d6d4f0cd5c515b055766fdeb1d1d5443264126", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/buffer_pool-72a65cf89b8642ef)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d8395b31f3d0d7c94d509fcac0d6d4f0cd5c515b055766fdeb1d1d5443264126", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8395b31f3d0d7c94d509fcac0d6d4f0cd5c515b055766fdeb1d1d5443264126", kill_on_drop: false }`
[INFO] [stdout] d8395b31f3d0d7c94d509fcac0d6d4f0cd5c515b055766fdeb1d1d5443264126