[INFO] fetching crate specimen__writable 0.1.0...
[INFO] testing specimen__writable-0.1.0 against 1.90.0 for beta-1.91-2
[INFO] extracting crate specimen__writable 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate specimen__writable 0.1.0
[INFO] finished tweaking crates.io crate specimen__writable 0.1.0
[INFO] tweaked toml for crates.io crate specimen__writable 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate specimen__writable 0.1.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dcf273e72a17cf0e6afd4e650c84df708df9ee6dc7484a6e04fd9dcecb83cacf
[INFO] running `Command { std: "docker" "start" "-a" "dcf273e72a17cf0e6afd4e650c84df708df9ee6dc7484a6e04fd9dcecb83cacf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dcf273e72a17cf0e6afd4e650c84df708df9ee6dc7484a6e04fd9dcecb83cacf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcf273e72a17cf0e6afd4e650c84df708df9ee6dc7484a6e04fd9dcecb83cacf", kill_on_drop: false }`
[INFO] [stdout] dcf273e72a17cf0e6afd4e650c84df708df9ee6dc7484a6e04fd9dcecb83cacf
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0886ec8bcedd78360494160ee6f0317c3ff1186b7476b28de6778a8b55dee4ea
[INFO] running `Command { std: "docker" "start" "-a" "0886ec8bcedd78360494160ee6f0317c3ff1186b7476b28de6778a8b55dee4ea", kill_on_drop: false }`
[INFO] [stderr] error: failed to create directory `/opt/rustwide/target/debug/.fingerprint/specimen__writable-90df1204a9f527f1`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] running `Command { std: "docker" "inspect" "0886ec8bcedd78360494160ee6f0317c3ff1186b7476b28de6778a8b55dee4ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0886ec8bcedd78360494160ee6f0317c3ff1186b7476b28de6778a8b55dee4ea", kill_on_drop: false }`
[INFO] [stdout] 0886ec8bcedd78360494160ee6f0317c3ff1186b7476b28de6778a8b55dee4ea