[INFO] cloning repository https://github.com/mare5x/rust-micrograd
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mare5x/rust-micrograd" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmare5x%2Frust-micrograd", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmare5x%2Frust-micrograd'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f8663f32295591a53533390884189ec24fb72761
[INFO] checking mare5x/rust-micrograd against master#4455c8937007f3cc3c078375a335d86dbab391ce for pr-140956
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmare5x%2Frust-micrograd" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mare5x/rust-micrograd
[INFO] finished tweaking git repo https://github.com/mare5x/rust-micrograd
[INFO] tweaked toml for git repo https://github.com/mare5x/rust-micrograd written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mare5x/rust-micrograd on toolchain 4455c8937007f3cc3c078375a335d86dbab391ce
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4455c8937007f3cc3c078375a335d86dbab391ce" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mare5x/rust-micrograd 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" "+4455c8937007f3cc3c078375a335d86dbab391ce" "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-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+4455c8937007f3cc3c078375a335d86dbab391ce" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b8dbd04c0e91e9d81821a9b2d01259365ac75841c25259d5b7b1f36ab8d79230
[INFO] running `Command { std: "docker" "start" "-a" "b8dbd04c0e91e9d81821a9b2d01259365ac75841c25259d5b7b1f36ab8d79230", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8dbd04c0e91e9d81821a9b2d01259365ac75841c25259d5b7b1f36ab8d79230", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8dbd04c0e91e9d81821a9b2d01259365ac75841c25259d5b7b1f36ab8d79230", kill_on_drop: false }`
[INFO] [stdout] b8dbd04c0e91e9d81821a9b2d01259365ac75841c25259d5b7b1f36ab8d79230


command failed: exit status: 1

Error response from daemon: mkdir /var/lib/docker/overlay2/638d0b7c5fb0d05ad6d24b3881d0397ca5c970d18930920b7c6109856d89721f/merged: no space left on device