[INFO] fetching crate poly_enum_derive 0.1.1...
[INFO] checking poly_enum_derive-0.1.1 against try#73ffebff6f34db7eb167bf9edcf2afa19c3073e9 for pr-147841
[INFO] extracting crate poly_enum_derive 0.1.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate poly_enum_derive 0.1.1
[INFO] finished tweaking crates.io crate poly_enum_derive 0.1.1
[INFO] tweaked toml for crates.io crate poly_enum_derive 0.1.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate poly_enum_derive 0.1.1 on toolchain 73ffebff6f34db7eb167bf9edcf2afa19c3073e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate poly_enum_derive 0.1.1 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" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking poly_enum_derive-0.1.1 against try#73ffebff6f34db7eb167bf9edcf2afa19c3073e9 for pr-147841
[INFO] extracting crate poly_enum_derive 0.1.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate poly_enum_derive 0.1.1
[INFO] finished tweaking crates.io crate poly_enum_derive 0.1.1
[INFO] tweaked toml for crates.io crate poly_enum_derive 0.1.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate poly_enum_derive 0.1.1 on toolchain 73ffebff6f34db7eb167bf9edcf2afa19c3073e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate poly_enum_derive 0.1.1 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" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2a109f515c0b517564bd4b64b52c25e5ffdad0ee4da58af910a71c5502ef026d
[INFO] running `Command { std: "docker" "start" "-a" "2a109f515c0b517564bd4b64b52c25e5ffdad0ee4da58af910a71c5502ef026d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a109f515c0b517564bd4b64b52c25e5ffdad0ee4da58af910a71c5502ef026d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a109f515c0b517564bd4b64b52c25e5ffdad0ee4da58af910a71c5502ef026d", kill_on_drop: false }`
[INFO] [stdout] 2a109f515c0b517564bd4b64b52c25e5ffdad0ee4da58af910a71c5502ef026d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3fe61caf42d70d9c423fb2797708638ee353b287a87033f75e26986be6d3f5c8
[INFO] running `Command { std: "docker" "start" "-a" "3fe61caf42d70d9c423fb2797708638ee353b287a87033f75e26986be6d3f5c8", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-ident v1.0.18
[INFO] [stderr]     Checking proc-macro2 v1.0.95
[INFO] [stderr]     Checking quote v1.0.40
[INFO] [stderr]     Checking syn v2.0.101
[INFO] [stderr]     Checking poly_enum_derive v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.57s
[INFO] running `Command { std: "docker" "inspect" "3fe61caf42d70d9c423fb2797708638ee353b287a87033f75e26986be6d3f5c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fe61caf42d70d9c423fb2797708638ee353b287a87033f75e26986be6d3f5c8", kill_on_drop: false }`
[INFO] [stdout] 3fe61caf42d70d9c423fb2797708638ee353b287a87033f75e26986be6d3f5c8