[INFO] cloning repository https://github.com/rust-bootcamp-101/02-concurrency
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rust-bootcamp-101/02-concurrency" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-bootcamp-101%2F02-concurrency", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-bootcamp-101%2F02-concurrency'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ce24eab6bce77c68c45105de1d3c21a50da910fb
[INFO] checking rust-bootcamp-101/02-concurrency against master#f21fbac535ab2c3bc50db20547f4d48477357103 for pr-143193
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-bootcamp-101%2F02-concurrency" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/rust-bootcamp-101/02-concurrency
[INFO] finished tweaking git repo https://github.com/rust-bootcamp-101/02-concurrency
[INFO] tweaked toml for git repo https://github.com/rust-bootcamp-101/02-concurrency written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rust-bootcamp-101/02-concurrency on toolchain f21fbac535ab2c3bc50db20547f4d48477357103
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f21fbac535ab2c3bc50db20547f4d48477357103" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rust-bootcamp-101/02-concurrency 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" "+f21fbac535ab2c3bc50db20547f4d48477357103" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+f21fbac535ab2c3bc50db20547f4d48477357103" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a35e1267666b0dad940e0bf13e05602dbc48b28f6f981007090f7e27757a35c2
[INFO] running `Command { std: "docker" "start" "-a" "a35e1267666b0dad940e0bf13e05602dbc48b28f6f981007090f7e27757a35c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a35e1267666b0dad940e0bf13e05602dbc48b28f6f981007090f7e27757a35c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a35e1267666b0dad940e0bf13e05602dbc48b28f6f981007090f7e27757a35c2", kill_on_drop: false }`
[INFO] [stdout] a35e1267666b0dad940e0bf13e05602dbc48b28f6f981007090f7e27757a35c2
[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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+f21fbac535ab2c3bc50db20547f4d48477357103" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b20a5f8f461cbef55863f69dcde3268fefb9c74af247e9730df08637aa9e2c8f
[INFO] running `Command { std: "docker" "start" "-a" "b20a5f8f461cbef55863f69dcde3268fefb9c74af247e9730df08637aa9e2c8f", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: mkdir /var/lib/docker/containers/b20a5f8f461cbef55863f69dcde3268fefb9c74af247e9730df08637aa9e2c8f/mounts: no space left on device
[INFO] running `Command { std: "docker" "inspect" "b20a5f8f461cbef55863f69dcde3268fefb9c74af247e9730df08637aa9e2c8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b20a5f8f461cbef55863f69dcde3268fefb9c74af247e9730df08637aa9e2c8f", kill_on_drop: false }`
[INFO] [stdout] b20a5f8f461cbef55863f69dcde3268fefb9c74af247e9730df08637aa9e2c8f