[INFO] cloning repository https://github.com/kamranajabbar/ch_16_concurrency_thread
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kamranajabbar/ch_16_concurrency_thread" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkamranajabbar%2Fch_16_concurrency_thread", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkamranajabbar%2Fch_16_concurrency_thread'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3b04b520f6ab4828c204cd35133be50622a850f7
[INFO] checking kamranajabbar/ch_16_concurrency_thread against master#c5fbcd35a8217a17f6b63a22217ace06cf8f5f02 for pr-86194
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkamranajabbar%2Fch_16_concurrency_thread" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kamranajabbar/ch_16_concurrency_thread on toolchain c5fbcd35a8217a17f6b63a22217ace06cf8f5f02
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kamranajabbar/ch_16_concurrency_thread
[INFO] finished tweaking git repo https://github.com/kamranajabbar/ch_16_concurrency_thread
[INFO] tweaked toml for git repo https://github.com/kamranajabbar/ch_16_concurrency_thread written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/kamranajabbar/ch_16_concurrency_thread already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7f8c8726d7d247e6e7ba4563a7650e67c9f655181f47222161ba88b5a59401ce
[INFO] running `Command { std: "docker" "start" "-a" "7f8c8726d7d247e6e7ba4563a7650e67c9f655181f47222161ba88b5a59401ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f8c8726d7d247e6e7ba4563a7650e67c9f655181f47222161ba88b5a59401ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f8c8726d7d247e6e7ba4563a7650e67c9f655181f47222161ba88b5a59401ce", kill_on_drop: false }`
[INFO] [stdout] 7f8c8726d7d247e6e7ba4563a7650e67c9f655181f47222161ba88b5a59401ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e87c0d1cea51192b1abd298b1edddf87b51276772652a5defaf66a4bb1c5541f
[INFO] running `Command { std: "docker" "start" "-a" "e87c0d1cea51192b1abd298b1edddf87b51276772652a5defaf66a4bb1c5541f", kill_on_drop: false }`
[INFO] [stderr]     Checking ch_16_concurrency_thread v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "e87c0d1cea51192b1abd298b1edddf87b51276772652a5defaf66a4bb1c5541f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e87c0d1cea51192b1abd298b1edddf87b51276772652a5defaf66a4bb1c5541f", kill_on_drop: false }`
[INFO] [stdout] e87c0d1cea51192b1abd298b1edddf87b51276772652a5defaf66a4bb1c5541f