[INFO] fetching crate mutex-watersheds 0.1.1...
[INFO] testing mutex-watersheds-0.1.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate mutex-watersheds 0.1.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate mutex-watersheds 0.1.1 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 mutex-watersheds 0.1.1
[INFO] finished tweaking crates.io crate mutex-watersheds 0.1.1
[INFO] tweaked toml for crates.io crate mutex-watersheds 0.1.1 written to /workspace/builds/worker-8/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] 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" "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] 8688819072b94c7bdf6dfc57174d2fa5b1227bebe58fecadee6baeb816de1c14
[INFO] running `Command { std: "docker" "start" "-a" "8688819072b94c7bdf6dfc57174d2fa5b1227bebe58fecadee6baeb816de1c14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8688819072b94c7bdf6dfc57174d2fa5b1227bebe58fecadee6baeb816de1c14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8688819072b94c7bdf6dfc57174d2fa5b1227bebe58fecadee6baeb816de1c14", kill_on_drop: false }`
[INFO] [stdout] 8688819072b94c7bdf6dfc57174d2fa5b1227bebe58fecadee6baeb816de1c14
[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" "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] 585284200b2dd4de5947cea0f967b846cec765fc529a3c5ca6d7feb947738a04
[INFO] running `Command { std: "docker" "start" "-a" "585284200b2dd4de5947cea0f967b846cec765fc529a3c5ca6d7feb947738a04", kill_on_drop: false }`
[INFO] [stderr]    Compiling disjoint-sets v0.4.2
[INFO] [stderr]    Compiling mutex-watersheds v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.33s
[INFO] running `Command { std: "docker" "inspect" "585284200b2dd4de5947cea0f967b846cec765fc529a3c5ca6d7feb947738a04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "585284200b2dd4de5947cea0f967b846cec765fc529a3c5ca6d7feb947738a04", kill_on_drop: false }`
[INFO] [stdout] 585284200b2dd4de5947cea0f967b846cec765fc529a3c5ca6d7feb947738a04
[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" "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] 830882a28f367ab4010d04086a8afb54f8f0f58623b80f9b54dff40c84a96c6b
[INFO] running `Command { std: "docker" "start" "-a" "830882a28f367ab4010d04086a8afb54f8f0f58623b80f9b54dff40c84a96c6b", kill_on_drop: false }`
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling mutex-watersheds v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.94s
[INFO] running `Command { std: "docker" "inspect" "830882a28f367ab4010d04086a8afb54f8f0f58623b80f9b54dff40c84a96c6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "830882a28f367ab4010d04086a8afb54f8f0f58623b80f9b54dff40c84a96c6b", kill_on_drop: false }`
[INFO] [stdout] 830882a28f367ab4010d04086a8afb54f8f0f58623b80f9b54dff40c84a96c6b
[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" "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] 8a8f8c3ad22b813189d74baf01e130b9a894f60eb78c76fb2de8f8497a8b3d4f
[INFO] running `Command { std: "docker" "start" "-a" "8a8f8c3ad22b813189d74baf01e130b9a894f60eb78c76fb2de8f8497a8b3d4f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mutex_watersheds-1169848a8be3b175)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::mutex_ws ... ok
[INFO] [stderr]    Doc-tests mutex-watersheds
[INFO] [stdout] test tests::mutex_ws_variable_edge ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8a8f8c3ad22b813189d74baf01e130b9a894f60eb78c76fb2de8f8497a8b3d4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a8f8c3ad22b813189d74baf01e130b9a894f60eb78c76fb2de8f8497a8b3d4f", kill_on_drop: false }`
[INFO] [stdout] 8a8f8c3ad22b813189d74baf01e130b9a894f60eb78c76fb2de8f8497a8b3d4f