[INFO] cloning repository https://github.com/thumperca/mutex-experiments
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thumperca/mutex-experiments" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthumperca%2Fmutex-experiments", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthumperca%2Fmutex-experiments'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 052da1010a141b49b486ea496ed21a0b2ce28104
[INFO] checking thumperca/mutex-experiments against try#5fee451ebd94296ea05214e819c311e164b30af6 for pr-139042
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthumperca%2Fmutex-experiments" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/thumperca/mutex-experiments on toolchain 5fee451ebd94296ea05214e819c311e164b30af6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5fee451ebd94296ea05214e819c311e164b30af6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/thumperca/mutex-experiments
[INFO] finished tweaking git repo https://github.com/thumperca/mutex-experiments
[INFO] tweaked toml for git repo https://github.com/thumperca/mutex-experiments written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/thumperca/mutex-experiments 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" "+5fee451ebd94296ea05214e819c311e164b30af6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+5fee451ebd94296ea05214e819c311e164b30af6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6ef5f989864d953bac773a87ee52ccbd983b2ef65d089f22a7465850b9492a50
[INFO] running `Command { std: "docker" "start" "-a" "6ef5f989864d953bac773a87ee52ccbd983b2ef65d089f22a7465850b9492a50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ef5f989864d953bac773a87ee52ccbd983b2ef65d089f22a7465850b9492a50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ef5f989864d953bac773a87ee52ccbd983b2ef65d089f22a7465850b9492a50", kill_on_drop: false }`
[INFO] [stdout] 6ef5f989864d953bac773a87ee52ccbd983b2ef65d089f22a7465850b9492a50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+5fee451ebd94296ea05214e819c311e164b30af6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b19fdf0889e2fcb6c3553b17f2a2e0da17ba46cfcb57c20e168ae9aad1a62ff
[INFO] running `Command { std: "docker" "start" "-a" "9b19fdf0889e2fcb6c3553b17f2a2e0da17ba46cfcb57c20e168ae9aad1a62ff", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: mkdir /var/lib/docker/overlay2/5ae86d5430a0cb2884bd5e8574fa828bfee472a06a4484ebeda6d57891dee2f3/merged: no space left on device
[INFO] running `Command { std: "docker" "inspect" "9b19fdf0889e2fcb6c3553b17f2a2e0da17ba46cfcb57c20e168ae9aad1a62ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b19fdf0889e2fcb6c3553b17f2a2e0da17ba46cfcb57c20e168ae9aad1a62ff", kill_on_drop: false }`
[INFO] [stdout] 9b19fdf0889e2fcb6c3553b17f2a2e0da17ba46cfcb57c20e168ae9aad1a62ff