[INFO] fetching crate tbr 1.2.7...
[INFO] checking tbr-1.2.7 against master#2d5a21f63c98f8a1d5f3c3af93bcb0a8af19af36 for pr-95819
[INFO] extracting crate tbr 1.2.7 into /workspace/builds/worker-108/source
[INFO] validating manifest of crates.io crate tbr 1.2.7 on toolchain 2d5a21f63c98f8a1d5f3c3af93bcb0a8af19af36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2d5a21f63c98f8a1d5f3c3af93bcb0a8af19af36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tbr 1.2.7
[INFO] finished tweaking crates.io crate tbr 1.2.7
[INFO] tweaked toml for crates.io crate tbr 1.2.7 written to /workspace/builds/worker-108/source/Cargo.toml
[INFO] crate crates.io crate tbr 1.2.7 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2d5a21f63c98f8a1d5f3c3af93bcb0a8af19af36" "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 enum-map-derive v0.8.0
[INFO] [stderr]   Downloaded rust-embed v6.3.0
[INFO] [stderr]   Downloaded chardetng v0.1.17
[INFO] [stderr]   Downloaded xml5ever v0.16.2
[INFO] [stderr]   Downloaded enum-map v2.0.1
[INFO] [stderr]   Downloaded enumset_derive v0.5.5
[INFO] [stderr]   Downloaded enumset v1.0.8
[INFO] [stderr]   Downloaded rust-embed-impl v6.2.0
[INFO] [stderr]   Downloaded rust-embed-utils v7.1.0
[INFO] [stderr]   Downloaded cursive_core v0.3.1
[INFO] [stderr]   Downloaded cursive v0.17.0
[INFO] [stderr]   Downloaded strip_bom v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+2d5a21f63c98f8a1d5f3c3af93bcb0a8af19af36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dcf87f8146976dfed3a6a8b0e24e897bdda5a78e8bf97ab3eb8d6cbfc7037f2d
[INFO] running `Command { std: "docker" "start" "-a" "dcf87f8146976dfed3a6a8b0e24e897bdda5a78e8bf97ab3eb8d6cbfc7037f2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dcf87f8146976dfed3a6a8b0e24e897bdda5a78e8bf97ab3eb8d6cbfc7037f2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcf87f8146976dfed3a6a8b0e24e897bdda5a78e8bf97ab3eb8d6cbfc7037f2d", kill_on_drop: false }`
[INFO] [stdout] dcf87f8146976dfed3a6a8b0e24e897bdda5a78e8bf97ab3eb8d6cbfc7037f2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+2d5a21f63c98f8a1d5f3c3af93bcb0a8af19af36" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[ERROR] error running command: no output for 300 seconds