[INFO] cloning repository https://github.com/jimblandy/async-chat2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jimblandy/async-chat2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjimblandy%2Fasync-chat2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjimblandy%2Fasync-chat2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e841646a9552d3df5c51052d70ea8c30635bb15b
[INFO] checking jimblandy/async-chat2 against master#fd17deacce374a4185c882795be162e17b557050 for pr-138001
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjimblandy%2Fasync-chat2" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jimblandy/async-chat2 on toolchain fd17deacce374a4185c882795be162e17b557050
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fd17deacce374a4185c882795be162e17b557050" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jimblandy/async-chat2
[INFO] finished tweaking git repo https://github.com/jimblandy/async-chat2
[INFO] tweaked toml for git repo https://github.com/jimblandy/async-chat2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jimblandy/async-chat2 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" "+fd17deacce374a4185c882795be162e17b557050" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pin-project v0.4.17
[INFO] [stderr]   Downloaded wepoll-binding v2.0.1
[INFO] [stderr]   Downloaded kv-log-macro v1.0.5
[INFO] [stderr]   Downloaded piper v0.1.2
[INFO] [stderr]   Downloaded cc v1.0.53
[INFO] [stderr]   Downloaded pin-project-internal v0.4.17
[INFO] [stderr]   Downloaded async-std v1.6.0-beta.2
[INFO] [stderr]   Downloaded smol v0.1.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+fd17deacce374a4185c882795be162e17b557050" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] da583c0dcbab71b91540f34c0d2c950a17cafb2bce9f9c7bd6432b1eaf3dd9b7
[INFO] running `Command { std: "docker" "start" "-a" "da583c0dcbab71b91540f34c0d2c950a17cafb2bce9f9c7bd6432b1eaf3dd9b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da583c0dcbab71b91540f34c0d2c950a17cafb2bce9f9c7bd6432b1eaf3dd9b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da583c0dcbab71b91540f34c0d2c950a17cafb2bce9f9c7bd6432b1eaf3dd9b7", kill_on_drop: false }`
[INFO] [stdout] da583c0dcbab71b91540f34c0d2c950a17cafb2bce9f9c7bd6432b1eaf3dd9b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+fd17deacce374a4185c882795be162e17b557050" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ac912c65c8e487b935fa9ff3ba42f85f69ca65a7749f608d4b3d8751dd13966
[INFO] running `Command { std: "docker" "start" "-a" "0ac912c65c8e487b935fa9ff3ba42f85f69ca65a7749f608d4b3d8751dd13966", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: failed to create task for container: failed to create shim task: OCI runtime create failed: runc create failed: unable to start container process: error during container init: error mounting "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target" to rootfs at "/opt/rustwide/target": mkdir /var/lib/docker/overlay2/15b57d9769cb78e67dbb100de587f23e746fc79ce8e14f76136ef4b55cb941a3/merged/opt/rustwide/target: no space left on device: unknown
[INFO] running `Command { std: "docker" "inspect" "0ac912c65c8e487b935fa9ff3ba42f85f69ca65a7749f608d4b3d8751dd13966", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ac912c65c8e487b935fa9ff3ba42f85f69ca65a7749f608d4b3d8751dd13966", kill_on_drop: false }`
[INFO] [stdout] 0ac912c65c8e487b935fa9ff3ba42f85f69ca65a7749f608d4b3d8751dd13966