[INFO] fetching crate tbf 0.1.7...
[INFO] checking tbf-0.1.7 against master#18bd2dd5cda08b09ace6e37c1a0312e9b2bb4beb for pr-96970
[INFO] extracting crate tbf 0.1.7 into /workspace/builds/worker-81/source
[INFO] validating manifest of crates.io crate tbf 0.1.7 on toolchain 18bd2dd5cda08b09ace6e37c1a0312e9b2bb4beb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+18bd2dd5cda08b09ace6e37c1a0312e9b2bb4beb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tbf 0.1.7
[INFO] finished tweaking crates.io crate tbf 0.1.7
[INFO] tweaked toml for crates.io crate tbf 0.1.7 written to /workspace/builds/worker-81/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+18bd2dd5cda08b09ace6e37c1a0312e9b2bb4beb" "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" "+18bd2dd5cda08b09ace6e37c1a0312e9b2bb4beb" "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-81/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+18bd2dd5cda08b09ace6e37c1a0312e9b2bb4beb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c19c0f90c9ee4dedbd88ff0ded28c1d5239bc73fbbbe3abc8f7b934e7294e061
[INFO] running `Command { std: "docker" "start" "-a" "c19c0f90c9ee4dedbd88ff0ded28c1d5239bc73fbbbe3abc8f7b934e7294e061", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c19c0f90c9ee4dedbd88ff0ded28c1d5239bc73fbbbe3abc8f7b934e7294e061", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c19c0f90c9ee4dedbd88ff0ded28c1d5239bc73fbbbe3abc8f7b934e7294e061", kill_on_drop: false }`
[INFO] [stdout] c19c0f90c9ee4dedbd88ff0ded28c1d5239bc73fbbbe3abc8f7b934e7294e061
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+18bd2dd5cda08b09ace6e37c1a0312e9b2bb4beb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e7f01ffd8e7ed38e67d4885358e326269128e55f3a2160d9eb67f899f3f7cbf
[INFO] running `Command { std: "docker" "start" "-a" "3e7f01ffd8e7ed38e67d4885358e326269128e55f3a2160d9eb67f899f3f7cbf", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "3e7f01ffd8e7ed38e67d4885358e326269128e55f3a2160d9eb67f899f3f7cbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e7f01ffd8e7ed38e67d4885358e326269128e55f3a2160d9eb67f899f3f7cbf", kill_on_drop: false }`
[INFO] [stdout] 3e7f01ffd8e7ed38e67d4885358e326269128e55f3a2160d9eb67f899f3f7cbf