[INFO] fetching crate killswitch 0.4.0...
[INFO] checking killswitch-0.4.0 against try#d57d2d63e6f308d854fedbafd91d7721b7c651af for pr-110141
[INFO] extracting crate killswitch 0.4.0 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate killswitch 0.4.0 on toolchain d57d2d63e6f308d854fedbafd91d7721b7c651af
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d57d2d63e6f308d854fedbafd91d7721b7c651af" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate killswitch 0.4.0
[INFO] finished tweaking crates.io crate killswitch 0.4.0
[INFO] tweaked toml for crates.io crate killswitch 0.4.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate killswitch 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d57d2d63e6f308d854fedbafd91d7721b7c651af" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:97d61d7686bf65f8ecb15491ab51835e82dc9176a96a831f143a431b191fc501" "/opt/rustwide/cargo-home/bin/cargo" "+d57d2d63e6f308d854fedbafd91d7721b7c651af" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dcc4694cc19cd46f963de69cdf6dedc81c9bf616d5ee89e1fccdf5674ebee426
[INFO] running `Command { std: "docker" "start" "-a" "dcc4694cc19cd46f963de69cdf6dedc81c9bf616d5ee89e1fccdf5674ebee426", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dcc4694cc19cd46f963de69cdf6dedc81c9bf616d5ee89e1fccdf5674ebee426", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcc4694cc19cd46f963de69cdf6dedc81c9bf616d5ee89e1fccdf5674ebee426", kill_on_drop: false }`
[INFO] [stdout] dcc4694cc19cd46f963de69cdf6dedc81c9bf616d5ee89e1fccdf5674ebee426
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "RUSTDOCFLAGS=--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@sha256:97d61d7686bf65f8ecb15491ab51835e82dc9176a96a831f143a431b191fc501" "/opt/rustwide/cargo-home/bin/cargo" "+d57d2d63e6f308d854fedbafd91d7721b7c651af" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3500d068f65a3a783cda5e67c33a3337819661e17051b80b8872eab1bc6c2ea7
[INFO] running `Command { std: "docker" "start" "-a" "3500d068f65a3a783cda5e67c33a3337819661e17051b80b8872eab1bc6c2ea7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "3500d068f65a3a783cda5e67c33a3337819661e17051b80b8872eab1bc6c2ea7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3500d068f65a3a783cda5e67c33a3337819661e17051b80b8872eab1bc6c2ea7", kill_on_drop: false }`
[INFO] [stdout] 3500d068f65a3a783cda5e67c33a3337819661e17051b80b8872eab1bc6c2ea7