[INFO] cloning repository https://github.com/xasopheno/weresocool_ring_buffer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xasopheno/weresocool_ring_buffer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxasopheno%2Fweresocool_ring_buffer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxasopheno%2Fweresocool_ring_buffer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bc415d23050c58f491a08da16cf738f7f3d5fae5
[INFO] checking xasopheno/weresocool_ring_buffer against master#03eb45452305f2d52348279d0caa5fc1f12c438d for pr-138176
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxasopheno%2Fweresocool_ring_buffer" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xasopheno/weresocool_ring_buffer on toolchain 03eb45452305f2d52348279d0caa5fc1f12c438d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+03eb45452305f2d52348279d0caa5fc1f12c438d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/xasopheno/weresocool_ring_buffer
[INFO] finished tweaking git repo https://github.com/xasopheno/weresocool_ring_buffer
[INFO] tweaked toml for git repo https://github.com/xasopheno/weresocool_ring_buffer written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/xasopheno/weresocool_ring_buffer 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" "+03eb45452305f2d52348279d0caa5fc1f12c438d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+03eb45452305f2d52348279d0caa5fc1f12c438d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bc998b2566df9645be876d8e378cd3d05d48427283b0953f3da30fd811901e74
[INFO] running `Command { std: "docker" "start" "-a" "bc998b2566df9645be876d8e378cd3d05d48427283b0953f3da30fd811901e74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc998b2566df9645be876d8e378cd3d05d48427283b0953f3da30fd811901e74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc998b2566df9645be876d8e378cd3d05d48427283b0953f3da30fd811901e74", kill_on_drop: false }`
[INFO] [stdout] bc998b2566df9645be876d8e378cd3d05d48427283b0953f3da30fd811901e74
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+03eb45452305f2d52348279d0caa5fc1f12c438d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ae4fbe656d0996d8d79dbdaabd55b0cb34348e2e1f6e67ed11a995e6049b8d14
[INFO] running `Command { std: "docker" "start" "-a" "ae4fbe656d0996d8d79dbdaabd55b0cb34348e2e1f6e67ed11a995e6049b8d14", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: failed to create task for container: failed to start shim: mkdir /var/lib/containerd/io.containerd.runtime.v2.task/moby/ae4fbe656d0996d8d79dbdaabd55b0cb34348e2e1f6e67ed11a995e6049b8d14: no space left on device: unknown
[INFO] running `Command { std: "docker" "inspect" "ae4fbe656d0996d8d79dbdaabd55b0cb34348e2e1f6e67ed11a995e6049b8d14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae4fbe656d0996d8d79dbdaabd55b0cb34348e2e1f6e67ed11a995e6049b8d14", kill_on_drop: false }`
[INFO] [stdout] ae4fbe656d0996d8d79dbdaabd55b0cb34348e2e1f6e67ed11a995e6049b8d14