[INFO] fetching crate adrift_queue 0.0.1...
[INFO] checking adrift_queue-0.0.1 against try#0c70cfbec949d241375e31c5a42066be70c720fc for pr-149681
[INFO] extracting crate adrift_queue 0.0.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate adrift_queue 0.0.1
[INFO] finished tweaking crates.io crate adrift_queue 0.0.1
[INFO] tweaked toml for crates.io crate adrift_queue 0.0.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate adrift_queue 0.0.1 on toolchain 0c70cfbec949d241375e31c5a42066be70c720fc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0c70cfbec949d241375e31c5a42066be70c720fc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0c70cfbec949d241375e31c5a42066be70c720fc" "generate-lockfile" "--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 adrift_queue-0.0.1 against try#0c70cfbec949d241375e31c5a42066be70c720fc for pr-149681
[INFO] extracting crate adrift_queue 0.0.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate adrift_queue 0.0.1
[INFO] finished tweaking crates.io crate adrift_queue 0.0.1
[INFO] tweaked toml for crates.io crate adrift_queue 0.0.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate adrift_queue 0.0.1 on toolchain 0c70cfbec949d241375e31c5a42066be70c720fc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0c70cfbec949d241375e31c5a42066be70c720fc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0c70cfbec949d241375e31c5a42066be70c720fc" "generate-lockfile" "--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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0c70cfbec949d241375e31c5a42066be70c720fc" "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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0c70cfbec949d241375e31c5a42066be70c720fc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ca003fd23c9cda570970abf7a6eee4e277015a9ee307d564eca683a1d78b2134
[INFO] running `Command { std: "docker" "start" "-a" "ca003fd23c9cda570970abf7a6eee4e277015a9ee307d564eca683a1d78b2134", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca003fd23c9cda570970abf7a6eee4e277015a9ee307d564eca683a1d78b2134", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca003fd23c9cda570970abf7a6eee4e277015a9ee307d564eca683a1d78b2134", kill_on_drop: false }`
[INFO] [stdout] ca003fd23c9cda570970abf7a6eee4e277015a9ee307d564eca683a1d78b2134
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0c70cfbec949d241375e31c5a42066be70c720fc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bb495ddd0b342ecbf44ee3675dc6564fcb52fee12713e8c4dc74f78f2bd2eea7
[INFO] running `Command { std: "docker" "start" "-a" "bb495ddd0b342ecbf44ee3675dc6564fcb52fee12713e8c4dc74f78f2bd2eea7", kill_on_drop: false }`
[INFO] [stderr]     Checking adrift_queue v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "bb495ddd0b342ecbf44ee3675dc6564fcb52fee12713e8c4dc74f78f2bd2eea7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb495ddd0b342ecbf44ee3675dc6564fcb52fee12713e8c4dc74f78f2bd2eea7", kill_on_drop: false }`
[INFO] [stdout] bb495ddd0b342ecbf44ee3675dc6564fcb52fee12713e8c4dc74f78f2bd2eea7