[INFO] fetching crate serde_stacker 0.1.12...
[INFO] checking serde_stacker-0.1.12 against master#e9182f195b8505c87c4bd055b9f6e114ccda0981 for pr-144098
[INFO] extracting crate serde_stacker 0.1.12 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate serde_stacker 0.1.12
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate serde_stacker 0.1.12
[INFO] tweaked toml for crates.io crate serde_stacker 0.1.12 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde_stacker 0.1.12 on toolchain e9182f195b8505c87c4bd055b9f6e114ccda0981
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e9182f195b8505c87c4bd055b9f6e114ccda0981" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate serde_stacker 0.1.12 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" "+e9182f195b8505c87c4bd055b9f6e114ccda0981" "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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+e9182f195b8505c87c4bd055b9f6e114ccda0981" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 98a5bb763103aa8b9c9ffbf186bb22d252d34b6a42613fc4f673519796e17b52
[INFO] running `Command { std: "docker" "start" "-a" "98a5bb763103aa8b9c9ffbf186bb22d252d34b6a42613fc4f673519796e17b52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98a5bb763103aa8b9c9ffbf186bb22d252d34b6a42613fc4f673519796e17b52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98a5bb763103aa8b9c9ffbf186bb22d252d34b6a42613fc4f673519796e17b52", kill_on_drop: false }`
[INFO] [stdout] 98a5bb763103aa8b9c9ffbf186bb22d252d34b6a42613fc4f673519796e17b52


command failed: exit status: 1

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-2-tc1/target" to rootfs at "/opt/rustwide/target": create mountpoint for /opt/rustwide/target mount: mkdirat /var/lib/docker/overlay2/0c42f5ac8a06bb161f1807622d9ee719355cb0c649e5b865936ab3979a26d843/merged/opt/rustwide/target: no space left on device: unknown