[INFO] fetching crate fpool 0.5.0...
[INFO] testing fpool-0.5.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate fpool 0.5.0 into /workspace/builds/worker-84/source
[INFO] validating manifest of crates.io crate fpool 0.5.0 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fpool 0.5.0
[INFO] finished tweaking crates.io crate fpool 0.5.0
[INFO] tweaked toml for crates.io crate fpool 0.5.0 written to /workspace/builds/worker-84/source/Cargo.toml
[INFO] crate crates.io crate fpool 0.5.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e9011ca15d314b0c1c8dc922d52a2da7d38e34d7ea20dda7e1510a832898c06d
[INFO] running `Command { std: "docker" "start" "-a" "e9011ca15d314b0c1c8dc922d52a2da7d38e34d7ea20dda7e1510a832898c06d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e9011ca15d314b0c1c8dc922d52a2da7d38e34d7ea20dda7e1510a832898c06d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9011ca15d314b0c1c8dc922d52a2da7d38e34d7ea20dda7e1510a832898c06d", kill_on_drop: false }`
[INFO] [stdout] e9011ca15d314b0c1c8dc922d52a2da7d38e34d7ea20dda7e1510a832898c06d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 13f5696cfda0e85e6889330faf3fa58f8599b5390ccc75358444f0dec2f1c12c
[INFO] running `Command { std: "docker" "start" "-a" "13f5696cfda0e85e6889330faf3fa58f8599b5390ccc75358444f0dec2f1c12c", kill_on_drop: false }`
[INFO] [stderr]    Compiling fpool v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "13f5696cfda0e85e6889330faf3fa58f8599b5390ccc75358444f0dec2f1c12c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13f5696cfda0e85e6889330faf3fa58f8599b5390ccc75358444f0dec2f1c12c", kill_on_drop: false }`
[INFO] [stdout] 13f5696cfda0e85e6889330faf3fa58f8599b5390ccc75358444f0dec2f1c12c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 427510f11bc46e0000ac3d31b7785bc9cb13b3d157dfa4280aaf22546f889ddf
[INFO] running `Command { std: "docker" "start" "-a" "427510f11bc46e0000ac3d31b7785bc9cb13b3d157dfa4280aaf22546f889ddf", kill_on_drop: false }`
[INFO] [stderr]    Compiling fpool v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "427510f11bc46e0000ac3d31b7785bc9cb13b3d157dfa4280aaf22546f889ddf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "427510f11bc46e0000ac3d31b7785bc9cb13b3d157dfa4280aaf22546f889ddf", kill_on_drop: false }`
[INFO] [stdout] 427510f11bc46e0000ac3d31b7785bc9cb13b3d157dfa4280aaf22546f889ddf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f4c653df0ad257318febc622a10f9d4d9cfb6886923411494670a353a729af36
[INFO] running `Command { std: "docker" "start" "-a" "f4c653df0ad257318febc622a10f9d4d9cfb6886923411494670a353a729af36", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.43s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/fpool-bc73d56146947f80)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fpool
[INFO] [stdout] running 2 tests
[INFO] [stdout] test pool::round_robin_pool::tests::refills_items_as_expected ... ok
[INFO] [stdout] test pool::round_robin_pool::tests::works_in_round_robin_fashion ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 19) - compile ... ok
[INFO] [stdout] test src/lib.rs - (line 27) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.50s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f4c653df0ad257318febc622a10f9d4d9cfb6886923411494670a353a729af36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4c653df0ad257318febc622a10f9d4d9cfb6886923411494670a353a729af36", kill_on_drop: false }`
[INFO] [stdout] f4c653df0ad257318febc622a10f9d4d9cfb6886923411494670a353a729af36