[INFO] fetching crate crossbeam-stack 0.0.0...
[INFO] testing crossbeam-stack-0.0.0 against master#0d13f6afeba4935499abe0c9a07426c94492c94e for pr-96025
[INFO] extracting crate crossbeam-stack 0.0.0 into /workspace/builds/worker-27/source
[INFO] validating manifest of crates.io crate crossbeam-stack 0.0.0 on toolchain 0d13f6afeba4935499abe0c9a07426c94492c94e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate crossbeam-stack 0.0.0
[INFO] finished tweaking crates.io crate crossbeam-stack 0.0.0
[INFO] tweaked toml for crates.io crate crossbeam-stack 0.0.0 written to /workspace/builds/worker-27/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "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" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "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-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 63937addad914b69142671ee94b9589873ffec49917009e44b917d1be997c23e
[INFO] running `Command { std: "docker" "start" "-a" "63937addad914b69142671ee94b9589873ffec49917009e44b917d1be997c23e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "63937addad914b69142671ee94b9589873ffec49917009e44b917d1be997c23e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63937addad914b69142671ee94b9589873ffec49917009e44b917d1be997c23e", kill_on_drop: false }`
[INFO] [stdout] 63937addad914b69142671ee94b9589873ffec49917009e44b917d1be997c23e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 14ade88267a785d44cb4cb694fc23bfac65525e45f1e9089c85d566c9569a279
[INFO] running `Command { std: "docker" "start" "-a" "14ade88267a785d44cb4cb694fc23bfac65525e45f1e9089c85d566c9569a279", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-stack v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "14ade88267a785d44cb4cb694fc23bfac65525e45f1e9089c85d566c9569a279", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14ade88267a785d44cb4cb694fc23bfac65525e45f1e9089c85d566c9569a279", kill_on_drop: false }`
[INFO] [stdout] 14ade88267a785d44cb4cb694fc23bfac65525e45f1e9089c85d566c9569a279
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d18aebf984d3614ff3ca0540ad509d8d889337cd24cdc48f06e2cac291060f22
[INFO] running `Command { std: "docker" "start" "-a" "d18aebf984d3614ff3ca0540ad509d8d889337cd24cdc48f06e2cac291060f22", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-stack v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 14.42s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/crossbeam_stack-960d7934aa9ce3bb)
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "d18aebf984d3614ff3ca0540ad509d8d889337cd24cdc48f06e2cac291060f22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d18aebf984d3614ff3ca0540ad509d8d889337cd24cdc48f06e2cac291060f22", kill_on_drop: false }`
[INFO] [stdout] d18aebf984d3614ff3ca0540ad509d8d889337cd24cdc48f06e2cac291060f22