[INFO] fetching crate arborust 0.2.0...
[INFO] checking arborust-0.2.0 against try#349c4bfa6ac87b818f6fd19d4869c0b24790ac6a for pr-152856
[INFO] extracting crate arborust 0.2.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate arborust 0.2.0
[INFO] finished tweaking crates.io crate arborust 0.2.0
[INFO] tweaked toml for crates.io crate arborust 0.2.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate arborust 0.2.0 on toolchain 349c4bfa6ac87b818f6fd19d4869c0b24790ac6a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+349c4bfa6ac87b818f6fd19d4869c0b24790ac6a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate arborust 0.2.0 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" "+349c4bfa6ac87b818f6fd19d4869c0b24790ac6a" "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 arborust-0.2.0 against try#349c4bfa6ac87b818f6fd19d4869c0b24790ac6a for pr-152856
[INFO] extracting crate arborust 0.2.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate arborust 0.2.0
[INFO] finished tweaking crates.io crate arborust 0.2.0
[INFO] tweaked toml for crates.io crate arborust 0.2.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate arborust 0.2.0 on toolchain 349c4bfa6ac87b818f6fd19d4869c0b24790ac6a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+349c4bfa6ac87b818f6fd19d4869c0b24790ac6a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate arborust 0.2.0 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" "+349c4bfa6ac87b818f6fd19d4869c0b24790ac6a" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+349c4bfa6ac87b818f6fd19d4869c0b24790ac6a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 210901c216ab256882306399f9065ef0187efdf608b2d243474d5c59c593dee1
[INFO] running `Command { std: "docker" "start" "-a" "210901c216ab256882306399f9065ef0187efdf608b2d243474d5c59c593dee1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "210901c216ab256882306399f9065ef0187efdf608b2d243474d5c59c593dee1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "210901c216ab256882306399f9065ef0187efdf608b2d243474d5c59c593dee1", kill_on_drop: false }`
[INFO] [stdout] 210901c216ab256882306399f9065ef0187efdf608b2d243474d5c59c593dee1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+349c4bfa6ac87b818f6fd19d4869c0b24790ac6a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1bbce1ed8b01bdf76e4636ee7fd2f737d63514ca09e2664ab9b1a2b7b0e0f925
[INFO] running `Command { std: "docker" "start" "-a" "1bbce1ed8b01bdf76e4636ee7fd2f737d63514ca09e2664ab9b1a2b7b0e0f925", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]     Checking walkdir v2.4.0
[INFO] [stderr]     Checking thread_local v1.1.7
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]     Checking bstr v1.7.0
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]     Checking globset v0.4.13
[INFO] [stderr]     Checking ignore v0.4.20
[INFO] [stderr]     Checking arborust v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.76s
[INFO] running `Command { std: "docker" "inspect" "1bbce1ed8b01bdf76e4636ee7fd2f737d63514ca09e2664ab9b1a2b7b0e0f925", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bbce1ed8b01bdf76e4636ee7fd2f737d63514ca09e2664ab9b1a2b7b0e0f925", kill_on_drop: false }`
[INFO] [stdout] 1bbce1ed8b01bdf76e4636ee7fd2f737d63514ca09e2664ab9b1a2b7b0e0f925