[INFO] cloning repository https://github.com/benjmnxu/data-structures
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/benjmnxu/data-structures" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenjmnxu%2Fdata-structures", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenjmnxu%2Fdata-structures'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 43f7df3bf13fa27e1acdc732a0c71cc07af61cb2
[INFO] checking benjmnxu/data-structures against try#0de49ae9e81f9a1e7df6f0783824ce94ed18e8a9 for pr-147185
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenjmnxu%2Fdata-structures" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/benjmnxu/data-structures
[INFO] finished tweaking git repo https://github.com/benjmnxu/data-structures
[INFO] tweaked toml for git repo https://github.com/benjmnxu/data-structures written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/benjmnxu/data-structures on toolchain 0de49ae9e81f9a1e7df6f0783824ce94ed18e8a9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0de49ae9e81f9a1e7df6f0783824ce94ed18e8a9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/benjmnxu/data-structures 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" "+0de49ae9e81f9a1e7df6f0783824ce94ed18e8a9" "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 benjmnxu/data-structures against try#0de49ae9e81f9a1e7df6f0783824ce94ed18e8a9 for pr-147185
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenjmnxu%2Fdata-structures" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/benjmnxu/data-structures
[INFO] finished tweaking git repo https://github.com/benjmnxu/data-structures
[INFO] tweaked toml for git repo https://github.com/benjmnxu/data-structures written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/benjmnxu/data-structures on toolchain 0de49ae9e81f9a1e7df6f0783824ce94ed18e8a9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0de49ae9e81f9a1e7df6f0783824ce94ed18e8a9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/benjmnxu/data-structures 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" "+0de49ae9e81f9a1e7df6f0783824ce94ed18e8a9" "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 libc v0.2.159
[INFO] [stderr]   Downloaded regex v1.10.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+0de49ae9e81f9a1e7df6f0783824ce94ed18e8a9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f78b743b6035968ac2fdfdf61e864b550ed985d2771a74836beb64d40e6e85fe
[INFO] running `Command { std: "docker" "start" "-a" "f78b743b6035968ac2fdfdf61e864b550ed985d2771a74836beb64d40e6e85fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f78b743b6035968ac2fdfdf61e864b550ed985d2771a74836beb64d40e6e85fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f78b743b6035968ac2fdfdf61e864b550ed985d2771a74836beb64d40e6e85fe", kill_on_drop: false }`
[INFO] [stdout] f78b743b6035968ac2fdfdf61e864b550ed985d2771a74836beb64d40e6e85fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+0de49ae9e81f9a1e7df6f0783824ce94ed18e8a9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 985c21c083a844780495c2437993f20b807265846d75d8246d3f1f28729f3015
[INFO] running `Command { std: "docker" "start" "-a" "985c21c083a844780495c2437993f20b807265846d75d8246d3f1f28729f3015", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.159
[INFO] [stderr]     Checking regex-syntax v0.8.4
[INFO] [stderr]     Checking log v0.4.22
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking regex v1.10.6
[INFO] [stderr]     Checking env_logger v0.8.4
[INFO] [stderr]     Checking quickcheck v1.0.3
[INFO] [stderr]     Checking links v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.52s
[INFO] running `Command { std: "docker" "inspect" "985c21c083a844780495c2437993f20b807265846d75d8246d3f1f28729f3015", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "985c21c083a844780495c2437993f20b807265846d75d8246d3f1f28729f3015", kill_on_drop: false }`
[INFO] [stdout] 985c21c083a844780495c2437993f20b807265846d75d8246d3f1f28729f3015