[INFO] cloning repository https://github.com/SteveBirtles/rust_for_polyglots
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SteveBirtles/rust_for_polyglots" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSteveBirtles%2Frust_for_polyglots", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSteveBirtles%2Frust_for_polyglots'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1dfc720c5b211fb49bc60e106ab8daace0a10d11
[INFO] building SteveBirtles/rust_for_polyglots against try#8aaecdf5df68a6fbc126704e44d399ba2fe66bf2 for pr-94962
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSteveBirtles%2Frust_for_polyglots" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SteveBirtles/rust_for_polyglots on toolchain 8aaecdf5df68a6fbc126704e44d399ba2fe66bf2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8aaecdf5df68a6fbc126704e44d399ba2fe66bf2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SteveBirtles/rust_for_polyglots
[INFO] finished tweaking git repo https://github.com/SteveBirtles/rust_for_polyglots
[INFO] tweaked toml for git repo https://github.com/SteveBirtles/rust_for_polyglots written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/SteveBirtles/rust_for_polyglots already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8aaecdf5df68a6fbc126704e44d399ba2fe66bf2" "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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:1ede1414886370302e694df474b9877c02906499f04c196936ce0973d30c5eaa" "/opt/rustwide/cargo-home/bin/cargo" "+8aaecdf5df68a6fbc126704e44d399ba2fe66bf2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2491ff0a145b7570d40e745fcf810c9ad07403d3012232bcb1aa0851741e019c
[INFO] running `Command { std: "docker" "start" "-a" "2491ff0a145b7570d40e745fcf810c9ad07403d3012232bcb1aa0851741e019c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2491ff0a145b7570d40e745fcf810c9ad07403d3012232bcb1aa0851741e019c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2491ff0a145b7570d40e745fcf810c9ad07403d3012232bcb1aa0851741e019c", kill_on_drop: false }`
[INFO] [stdout] 2491ff0a145b7570d40e745fcf810c9ad07403d3012232bcb1aa0851741e019c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:1ede1414886370302e694df474b9877c02906499f04c196936ce0973d30c5eaa" "/opt/rustwide/cargo-home/bin/cargo" "+8aaecdf5df68a6fbc126704e44d399ba2fe66bf2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a254e1a2fc57a9812af580bf3a8fd3f38766e6406f7d614d7e785f25bb6d03b6
[INFO] running `Command { std: "docker" "start" "-a" "a254e1a2fc57a9812af580bf3a8fd3f38766e6406f7d614d7e785f25bb6d03b6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.36
[INFO] [stderr]    Compiling rand v0.3.20
[INFO] [stderr]    Compiling rust_for_polyglots v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.48s
[INFO] running `Command { std: "docker" "inspect" "a254e1a2fc57a9812af580bf3a8fd3f38766e6406f7d614d7e785f25bb6d03b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a254e1a2fc57a9812af580bf3a8fd3f38766e6406f7d614d7e785f25bb6d03b6", kill_on_drop: false }`
[INFO] [stdout] a254e1a2fc57a9812af580bf3a8fd3f38766e6406f7d614d7e785f25bb6d03b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:1ede1414886370302e694df474b9877c02906499f04c196936ce0973d30c5eaa" "/opt/rustwide/cargo-home/bin/cargo" "+8aaecdf5df68a6fbc126704e44d399ba2fe66bf2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fd6a3e32b6d05a76a6f6b986c4e3f5c6f9950c558ca5608f58dfafbf093ca3e5
[INFO] running `Command { std: "docker" "start" "-a" "fd6a3e32b6d05a76a6f6b986c4e3f5c6f9950c558ca5608f58dfafbf093ca3e5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust_for_polyglots v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 20.96s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_for_polyglots-d25377bdfa179326)
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "fd6a3e32b6d05a76a6f6b986c4e3f5c6f9950c558ca5608f58dfafbf093ca3e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd6a3e32b6d05a76a6f6b986c4e3f5c6f9950c558ca5608f58dfafbf093ca3e5", kill_on_drop: false }`
[INFO] [stdout] fd6a3e32b6d05a76a6f6b986c4e3f5c6f9950c558ca5608f58dfafbf093ca3e5