[INFO] fetching crate mentor 0.1.0...
[INFO] testing mentor-0.1.0 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] extracting crate mentor 0.1.0 into /workspace/builds/worker-67/source
[INFO] validating manifest of crates.io crate mentor 0.1.0 on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mentor 0.1.0
[INFO] finished tweaking crates.io crate mentor 0.1.0
[INFO] tweaked toml for crates.io crate mentor 0.1.0 written to /workspace/builds/worker-67/source/Cargo.toml
[INFO] crate crates.io crate mentor 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a46f76cfa5ef8934cbb762f7cbb53c9c316729472e8765725a37488d23752b4a
[INFO] running `Command { std: "docker" "start" "-a" "a46f76cfa5ef8934cbb762f7cbb53c9c316729472e8765725a37488d23752b4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a46f76cfa5ef8934cbb762f7cbb53c9c316729472e8765725a37488d23752b4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a46f76cfa5ef8934cbb762f7cbb53c9c316729472e8765725a37488d23752b4a", kill_on_drop: false }`
[INFO] [stdout] a46f76cfa5ef8934cbb762f7cbb53c9c316729472e8765725a37488d23752b4a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a18d7865de0677b2dfea5ff11730053e9ec8ca1c768a4b479d8f3bdf7a105b4
[INFO] running `Command { std: "docker" "start" "-a" "2a18d7865de0677b2dfea5ff11730053e9ec8ca1c768a4b479d8f3bdf7a105b4", kill_on_drop: false }`
[INFO] [stderr]    Compiling mentor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.42s
[INFO] running `Command { std: "docker" "inspect" "2a18d7865de0677b2dfea5ff11730053e9ec8ca1c768a4b479d8f3bdf7a105b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a18d7865de0677b2dfea5ff11730053e9ec8ca1c768a4b479d8f3bdf7a105b4", kill_on_drop: false }`
[INFO] [stdout] 2a18d7865de0677b2dfea5ff11730053e9ec8ca1c768a4b479d8f3bdf7a105b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a2dc2361aa75c52e928a3664588f0a1994aa36673628d987b445ab782f17397
[INFO] running `Command { std: "docker" "start" "-a" "6a2dc2361aa75c52e928a3664588f0a1994aa36673628d987b445ab782f17397", kill_on_drop: false }`
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "6a2dc2361aa75c52e928a3664588f0a1994aa36673628d987b445ab782f17397", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a2dc2361aa75c52e928a3664588f0a1994aa36673628d987b445ab782f17397", kill_on_drop: false }`
[INFO] [stdout] 6a2dc2361aa75c52e928a3664588f0a1994aa36673628d987b445ab782f17397