[INFO] fetching crate fuzzcheck_serializer 0.6.0...
[INFO] checking fuzzcheck_serializer-0.6.0 against master#43ca9d18e333797f0aa3b525501a7cec8d61a96b for pr-136764
[INFO] extracting crate fuzzcheck_serializer 0.6.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate fuzzcheck_serializer 0.6.0 on toolchain 43ca9d18e333797f0aa3b525501a7cec8d61a96b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+43ca9d18e333797f0aa3b525501a7cec8d61a96b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fuzzcheck_serializer 0.6.0
[INFO] finished tweaking crates.io crate fuzzcheck_serializer 0.6.0
[INFO] tweaked toml for crates.io crate fuzzcheck_serializer 0.6.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+43ca9d18e333797f0aa3b525501a7cec8d61a96b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] warning: failed to write cache, path: /workspace/cargo-home/registry/index/index.crates.io-1949cf8c6b5b557f/.cache/de/ce/decent-serde-json-derive-alternative, error: No space left on device (os error 28)
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 15 packages to latest compatible versions
[INFO] [stderr]       Adding decent-serde-json-alternative v0.4.0 (available: v0.5.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+43ca9d18e333797f0aa3b525501a7cec8d61a96b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fuzzcheck_traits v0.6.0
[INFO] [stderr]   Downloaded decent-serde-json-alternative v0.4.0
[INFO] [stderr]   Downloaded decent-synquote-alternative v0.3.0
[INFO] [stderr]   Downloaded decent-serde-json-derive-alternative v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+43ca9d18e333797f0aa3b525501a7cec8d61a96b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 649d762a45ab060cc3af74423f598b36558a681560019caf7494c1e765c3f7ef
[INFO] running `Command { std: "docker" "start" "-a" "649d762a45ab060cc3af74423f598b36558a681560019caf7494c1e765c3f7ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "649d762a45ab060cc3af74423f598b36558a681560019caf7494c1e765c3f7ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "649d762a45ab060cc3af74423f598b36558a681560019caf7494c1e765c3f7ef", kill_on_drop: false }`
[INFO] [stdout] 649d762a45ab060cc3af74423f598b36558a681560019caf7494c1e765c3f7ef


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": mkdir /var/lib/docker/overlay2/2d8efb4b01a06f9cbc73d8d51a9e853af0ed200e1f1f46eabf53b87372c9b5e4/merged/opt/rustwide/rustup-home: no space left on device: unknown