[INFO] fetching crate ncrs 0.1.1...
[INFO] checking ncrs-0.1.1 against master#f4d794ea0b845413344621d89f6c945062748485 for pr-119369
[INFO] extracting crate ncrs 0.1.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate ncrs 0.1.1 on toolchain f4d794ea0b845413344621d89f6c945062748485
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f4d794ea0b845413344621d89f6c945062748485" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ncrs 0.1.1
[INFO] finished tweaking crates.io crate ncrs 0.1.1
[INFO] tweaked toml for crates.io crate ncrs 0.1.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f4d794ea0b845413344621d89f6c945062748485" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f4d794ea0b845413344621d89f6c945062748485" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking ncrs-0.1.1 against try#3832a95f57d4260fb5641e183906f49b4e5c6bdd for pr-119369
[INFO] extracting crate ncrs 0.1.1 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate ncrs 0.1.1 on toolchain 3832a95f57d4260fb5641e183906f49b4e5c6bdd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3832a95f57d4260fb5641e183906f49b4e5c6bdd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ncrs 0.1.1
[INFO] finished tweaking crates.io crate ncrs 0.1.1
[INFO] tweaked toml for crates.io crate ncrs 0.1.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3832a95f57d4260fb5641e183906f49b4e5c6bdd" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3832a95f57d4260fb5641e183906f49b4e5c6bdd" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3832a95f57d4260fb5641e183906f49b4e5c6bdd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d74c4ec66e90fa4f9edbcf3e755cd871cff710ee7dadddeb0efe8303d3e3c998
[INFO] running `Command { std: "docker" "start" "-a" "d74c4ec66e90fa4f9edbcf3e755cd871cff710ee7dadddeb0efe8303d3e3c998", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d74c4ec66e90fa4f9edbcf3e755cd871cff710ee7dadddeb0efe8303d3e3c998", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d74c4ec66e90fa4f9edbcf3e755cd871cff710ee7dadddeb0efe8303d3e3c998", kill_on_drop: false }`
[INFO] [stdout] d74c4ec66e90fa4f9edbcf3e755cd871cff710ee7dadddeb0efe8303d3e3c998
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3832a95f57d4260fb5641e183906f49b4e5c6bdd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d7fb2eae623fe26eadb853b82a4cf4da7ea77138f5bcdd43f462bf728cae8370
[INFO] running `Command { std: "docker" "start" "-a" "d7fb2eae623fe26eadb853b82a4cf4da7ea77138f5bcdd43f462bf728cae8370", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.77
[INFO] [stderr]     Checking ncrs v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "d7fb2eae623fe26eadb853b82a4cf4da7ea77138f5bcdd43f462bf728cae8370", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7fb2eae623fe26eadb853b82a4cf4da7ea77138f5bcdd43f462bf728cae8370", kill_on_drop: false }`
[INFO] [stdout] d7fb2eae623fe26eadb853b82a4cf4da7ea77138f5bcdd43f462bf728cae8370