[INFO] fetching crate arbiter-derive 0.1.3...
[INFO] checking arbiter-derive-0.1.3 against try#d336647335db03a0fc5b24fc5325cd3905c5b8e8 for pr-151146
[INFO] extracting crate arbiter-derive 0.1.3 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate arbiter-derive 0.1.3
[INFO] finished tweaking crates.io crate arbiter-derive 0.1.3
[INFO] tweaked toml for crates.io crate arbiter-derive 0.1.3 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate arbiter-derive 0.1.3 on toolchain d336647335db03a0fc5b24fc5325cd3905c5b8e8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d336647335db03a0fc5b24fc5325cd3905c5b8e8" "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" "+d336647335db03a0fc5b24fc5325cd3905c5b8e8" "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] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking arbiter-derive-0.1.3 against try#d336647335db03a0fc5b24fc5325cd3905c5b8e8 for pr-151146
[INFO] extracting crate arbiter-derive 0.1.3 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate arbiter-derive 0.1.3
[INFO] finished tweaking crates.io crate arbiter-derive 0.1.3
[INFO] tweaked toml for crates.io crate arbiter-derive 0.1.3 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate arbiter-derive 0.1.3 on toolchain d336647335db03a0fc5b24fc5325cd3905c5b8e8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d336647335db03a0fc5b24fc5325cd3905c5b8e8" "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" "+d336647335db03a0fc5b24fc5325cd3905c5b8e8" "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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] [stderr]       Adding proc-macro2 v1.0.69 (available: v1.0.106)
[INFO] [stderr]       Adding quote v1.0.33 (available: v1.0.44)
[INFO] [stderr]       Adding syn v2.0.39 (available: v2.0.114)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d336647335db03a0fc5b24fc5325cd3905c5b8e8" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.69
[INFO] [stderr]   Downloaded quote v1.0.33
[INFO] [stderr]   Downloaded syn v2.0.39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+d336647335db03a0fc5b24fc5325cd3905c5b8e8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c7f9fad719cc6aac6b7a18d1d26c086f11625f24fd821ed2fd62aab5f69cc7f6
[INFO] running `Command { std: "docker" "start" "-a" "c7f9fad719cc6aac6b7a18d1d26c086f11625f24fd821ed2fd62aab5f69cc7f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c7f9fad719cc6aac6b7a18d1d26c086f11625f24fd821ed2fd62aab5f69cc7f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7f9fad719cc6aac6b7a18d1d26c086f11625f24fd821ed2fd62aab5f69cc7f6", kill_on_drop: false }`
[INFO] [stdout] c7f9fad719cc6aac6b7a18d1d26c086f11625f24fd821ed2fd62aab5f69cc7f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+d336647335db03a0fc5b24fc5325cd3905c5b8e8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b04c59ce80eac004387c41bdb73467c4a84742e88cd246891640ce8dd36772b8
[INFO] running `Command { std: "docker" "start" "-a" "b04c59ce80eac004387c41bdb73467c4a84742e88cd246891640ce8dd36772b8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]     Checking unicode-ident v1.0.22
[INFO] [stderr]     Checking quote v1.0.33
[INFO] [stderr]     Checking syn v2.0.39
[INFO] [stderr]     Checking arbiter-derive v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.22s
[INFO] running `Command { std: "docker" "inspect" "b04c59ce80eac004387c41bdb73467c4a84742e88cd246891640ce8dd36772b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b04c59ce80eac004387c41bdb73467c4a84742e88cd246891640ce8dd36772b8", kill_on_drop: false }`
[INFO] [stdout] b04c59ce80eac004387c41bdb73467c4a84742e88cd246891640ce8dd36772b8