[INFO] fetching crate syndicate 0.44.0-rc.3...
[INFO] checking syndicate-0.44.0-rc.3 against master#fce0e74720d199eb7839fdb51af35ac5226da178 for pr-145262
[INFO] extracting crate syndicate 0.44.0-rc.3 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate syndicate 0.44.0-rc.3
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate syndicate 0.44.0-rc.3
[INFO] tweaked toml for crates.io crate syndicate 0.44.0-rc.3 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate syndicate 0.44.0-rc.3 on toolchain fce0e74720d199eb7839fdb51af35ac5226da178
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fce0e74720d199eb7839fdb51af35ac5226da178" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate syndicate 0.44.0-rc.3 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" "+fce0e74720d199eb7839fdb51af35ac5226da178" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syndicate-schema-plugin v0.12.0-rc.1
[INFO] [stderr]   Downloaded preserves v5.0.0-rc.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+fce0e74720d199eb7839fdb51af35ac5226da178" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9d5c0e20218f1c01c84692d7256e5379cf15e240b4ff3a6cf4baf83a2be15cd7
[INFO] running `Command { std: "docker" "start" "-a" "9d5c0e20218f1c01c84692d7256e5379cf15e240b4ff3a6cf4baf83a2be15cd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d5c0e20218f1c01c84692d7256e5379cf15e240b4ff3a6cf4baf83a2be15cd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d5c0e20218f1c01c84692d7256e5379cf15e240b4ff3a6cf4baf83a2be15cd7", kill_on_drop: false }`
[INFO] [stdout] 9d5c0e20218f1c01c84692d7256e5379cf15e240b4ff3a6cf4baf83a2be15cd7


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/rustup-home" to rootfs at "/opt/rustwide/rustup-home": create mountpoint for /opt/rustwide/rustup-home mount: mkdirat /var/lib/docker/overlay2/251650c8d22be2b1b4afa7d76dc570179291add22d22bd45886d3a6cc59e8764/merged/opt/rustwide/rustup-home: no space left on device: unknown