[INFO] fetching crate sefr 0.3.1...
[INFO] checking sefr-0.3.1 against master#068609ce766e55d2e7371cd2a86143a6d7e8e2e4 for pr-138952
[INFO] extracting crate sefr 0.3.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate sefr 0.3.1 on toolchain 068609ce766e55d2e7371cd2a86143a6d7e8e2e4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+068609ce766e55d2e7371cd2a86143a6d7e8e2e4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sefr 0.3.1
[INFO] finished tweaking crates.io crate sefr 0.3.1
[INFO] tweaked toml for crates.io crate sefr 0.3.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+068609ce766e55d2e7371cd2a86143a6d7e8e2e4" "generate-lockfile" "--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]      Locking 48 packages to latest compatible versions
[INFO] [stderr]       Adding crossterm v0.9.6 (available: v0.28.1)
[INFO] [stderr]       Adding directories v1.0.2 (available: v6.0.0)
[INFO] [stderr]       Adding json v0.11.15 (available: v0.12.4)
[INFO] [stderr]       Adding minreq v1.4.1 (available: v2.13.3)
[INFO] [stderr]       Adding percent-encoding v1.0.1 (available: v2.3.1)
[INFO] [stderr]       Adding toml v0.4.10 (available: v0.8.20)
[INFO] [stderr]       Adding webbrowser v0.5.5 (available: v1.0.4)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+068609ce766e55d2e7371cd2a86143a6d7e8e2e4" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crossterm_utils v0.2.4
[INFO] [stderr]   Downloaded crossterm v0.9.6
[INFO] [stderr]   Downloaded crossterm_style v0.3.3
[INFO] [stderr]   Downloaded crossterm_screen v0.2.5
[INFO] [stderr]   Downloaded minreq v1.4.1
[INFO] [stderr]   Downloaded crossterm_winapi v0.1.5
[INFO] [stderr]   Downloaded crossterm_cursor v0.2.6
[INFO] [stderr]   Downloaded crossterm_input v0.3.9
[INFO] [stderr]   Downloaded crossterm_terminal v0.2.6
[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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+068609ce766e55d2e7371cd2a86143a6d7e8e2e4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b5516a3f571bea20d6a4dba839b9700e28f378e0d262328a8bdf38b1be9d15d8
[INFO] running `Command { std: "docker" "start" "-a" "b5516a3f571bea20d6a4dba839b9700e28f378e0d262328a8bdf38b1be9d15d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b5516a3f571bea20d6a4dba839b9700e28f378e0d262328a8bdf38b1be9d15d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5516a3f571bea20d6a4dba839b9700e28f378e0d262328a8bdf38b1be9d15d8", kill_on_drop: false }`
[INFO] [stdout] b5516a3f571bea20d6a4dba839b9700e28f378e0d262328a8bdf38b1be9d15d8
[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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+068609ce766e55d2e7371cd2a86143a6d7e8e2e4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 30116f52acaacd9bf2310178ec2b04251c4da5fc670d7eb3d2f5b21794a5b354
[INFO] running `Command { std: "docker" "start" "-a" "30116f52acaacd9bf2310178ec2b04251c4da5fc670d7eb3d2f5b21794a5b354", kill_on_drop: false }`
[INFO] [stderr] 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/cargo-home" to rootfs at "/opt/rustwide/cargo-home": mkdir /var/lib/docker/overlay2/9adc8fecdda071617535329c2e08a79d0055efd3f13a0c7e76b5e4f7b3806385/merged/opt/rustwide/cargo-home: no space left on device: unknown
[INFO] running `Command { std: "docker" "inspect" "30116f52acaacd9bf2310178ec2b04251c4da5fc670d7eb3d2f5b21794a5b354", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30116f52acaacd9bf2310178ec2b04251c4da5fc670d7eb3d2f5b21794a5b354", kill_on_drop: false }`
[INFO] [stdout] 30116f52acaacd9bf2310178ec2b04251c4da5fc670d7eb3d2f5b21794a5b354