[INFO] fetching crate cargo-swarm 0.1.0-alpha...
[INFO] testing cargo-swarm-0.1.0-alpha against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate cargo-swarm 0.1.0-alpha into /workspace/builds/worker-55/source
[INFO] validating manifest of crates.io crate cargo-swarm 0.1.0-alpha on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-swarm 0.1.0-alpha
[INFO] finished tweaking crates.io crate cargo-swarm 0.1.0-alpha
[INFO] tweaked toml for crates.io crate cargo-swarm 0.1.0-alpha written to /workspace/builds/worker-55/source/Cargo.toml
[INFO] crate crates.io crate cargo-swarm 0.1.0-alpha already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 06639b5a0580f41fb83f4252cad74ea14de779ff879c38d2cd8d68d90812265c
[INFO] running `Command { std: "docker" "start" "-a" "06639b5a0580f41fb83f4252cad74ea14de779ff879c38d2cd8d68d90812265c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "06639b5a0580f41fb83f4252cad74ea14de779ff879c38d2cd8d68d90812265c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06639b5a0580f41fb83f4252cad74ea14de779ff879c38d2cd8d68d90812265c", kill_on_drop: false }`
[INFO] [stdout] 06639b5a0580f41fb83f4252cad74ea14de779ff879c38d2cd8d68d90812265c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f70254f1b543dc6930fa1fbd4e2a5551644a8574e09778d814ba0f2b2561b748
[INFO] running `Command { std: "docker" "start" "-a" "f70254f1b543dc6930fa1fbd4e2a5551644a8574e09778d814ba0f2b2561b748", 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] [stderr]    Compiling cargo-swarm v0.1.0-alpha (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.45s
[INFO] running `Command { std: "docker" "inspect" "f70254f1b543dc6930fa1fbd4e2a5551644a8574e09778d814ba0f2b2561b748", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f70254f1b543dc6930fa1fbd4e2a5551644a8574e09778d814ba0f2b2561b748", kill_on_drop: false }`
[INFO] [stdout] f70254f1b543dc6930fa1fbd4e2a5551644a8574e09778d814ba0f2b2561b748
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b628c51febb19da32978098b8a426f2a58b7e800eab3405ea6fb562d603be05c
[INFO] running `Command { std: "docker" "start" "-a" "b628c51febb19da32978098b8a426f2a58b7e800eab3405ea6fb562d603be05c", kill_on_drop: false }`
[INFO] [stderr]    Compiling cargo-swarm v0.1.0-alpha (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "b628c51febb19da32978098b8a426f2a58b7e800eab3405ea6fb562d603be05c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b628c51febb19da32978098b8a426f2a58b7e800eab3405ea6fb562d603be05c", kill_on_drop: false }`
[INFO] [stdout] b628c51febb19da32978098b8a426f2a58b7e800eab3405ea6fb562d603be05c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a9c0db2eb1f7cf3c5c7fa025f778668e78d8cbf31cffe8625a3f55048f8963a9
[INFO] running `Command { std: "docker" "start" "-a" "a9c0db2eb1f7cf3c5c7fa025f778668e78d8cbf31cffe8625a3f55048f8963a9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cargo_swarm-0187d07e1b098128)
[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" "a9c0db2eb1f7cf3c5c7fa025f778668e78d8cbf31cffe8625a3f55048f8963a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9c0db2eb1f7cf3c5c7fa025f778668e78d8cbf31cffe8625a3f55048f8963a9", kill_on_drop: false }`
[INFO] [stdout] a9c0db2eb1f7cf3c5c7fa025f778668e78d8cbf31cffe8625a3f55048f8963a9