[INFO] cloning repository https://github.com/aucker/concurrency
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aucker/concurrency" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faucker%2Fconcurrency", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faucker%2Fconcurrency'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5c7736867c3fa5d765f54e4d938260a4f742fa1d
[INFO] checking aucker/concurrency against try#3f7b27fe41ccd116a4c0829bd9a14b65bada4578 for pr-96970
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faucker%2Fconcurrency" "/workspace/builds/worker-99/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-99/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aucker/concurrency on toolchain 3f7b27fe41ccd116a4c0829bd9a14b65bada4578
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3f7b27fe41ccd116a4c0829bd9a14b65bada4578" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aucker/concurrency
[INFO] finished tweaking git repo https://github.com/aucker/concurrency
[INFO] tweaked toml for git repo https://github.com/aucker/concurrency written to /workspace/builds/worker-99/source/Cargo.toml
[INFO] crate git repo https://github.com/aucker/concurrency already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3f7b27fe41ccd116a4c0829bd9a14b65bada4578" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+3f7b27fe41ccd116a4c0829bd9a14b65bada4578" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 47e15f7c391aee9f9fe1f53c47ab4de404566a03d5774de5b2ff85168beff675
[INFO] running `Command { std: "docker" "start" "-a" "47e15f7c391aee9f9fe1f53c47ab4de404566a03d5774de5b2ff85168beff675", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47e15f7c391aee9f9fe1f53c47ab4de404566a03d5774de5b2ff85168beff675", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47e15f7c391aee9f9fe1f53c47ab4de404566a03d5774de5b2ff85168beff675", kill_on_drop: false }`
[INFO] [stdout] 47e15f7c391aee9f9fe1f53c47ab4de404566a03d5774de5b2ff85168beff675
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+3f7b27fe41ccd116a4c0829bd9a14b65bada4578" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f1a62c848d85451348467afdb3e06a36c0f54d5bc8b464123fbd1fceaa77b34
[INFO] running `Command { std: "docker" "start" "-a" "1f1a62c848d85451348467afdb3e06a36c0f54d5bc8b464123fbd1fceaa77b34", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking concurrency v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4m 53s
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "1f1a62c848d85451348467afdb3e06a36c0f54d5bc8b464123fbd1fceaa77b34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f1a62c848d85451348467afdb3e06a36c0f54d5bc8b464123fbd1fceaa77b34", kill_on_drop: false }`
[INFO] [stdout] 1f1a62c848d85451348467afdb3e06a36c0f54d5bc8b464123fbd1fceaa77b34