[INFO] updating cached repository robindaumann/aoc2018 [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/robindaumann/aoc2018 [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/robindaumann/aoc2018" "work/ex/pr-60620-1/sources/master#ef01f29964df207f181bd5bcf236e41372a17273/gh/robindaumann/aoc2018"` [INFO] [stderr] Cloning into 'work/ex/pr-60620-1/sources/master#ef01f29964df207f181bd5bcf236e41372a17273/gh/robindaumann/aoc2018'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/robindaumann/aoc2018" "work/ex/pr-60620-1/sources/try#a7cff45e655f886da150e206c7acbe984df4ab71/gh/robindaumann/aoc2018"` [INFO] [stderr] Cloning into 'work/ex/pr-60620-1/sources/try#a7cff45e655f886da150e206c7acbe984df4ab71/gh/robindaumann/aoc2018'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 588f79ae4167171fb484f9f098a1f972f33e876a [INFO] sha for GitHub repo robindaumann/aoc2018: 588f79ae4167171fb484f9f098a1f972f33e876a [INFO] validating manifest of robindaumann/aoc2018 on toolchain master#ef01f29964df207f181bd5bcf236e41372a17273 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+ef01f29964df207f181bd5bcf236e41372a17273-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of robindaumann/aoc2018 on toolchain try#a7cff45e655f886da150e206c7acbe984df4ab71 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a7cff45e655f886da150e206c7acbe984df4ab71-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing robindaumann/aoc2018 [INFO] finished frobbing robindaumann/aoc2018 [INFO] frobbed toml for robindaumann/aoc2018 written to work/ex/pr-60620-1/sources/master#ef01f29964df207f181bd5bcf236e41372a17273/gh/robindaumann/aoc2018/Cargo.toml [INFO] started frobbing robindaumann/aoc2018 [INFO] finished frobbing robindaumann/aoc2018 [INFO] frobbed toml for robindaumann/aoc2018 written to work/ex/pr-60620-1/sources/try#a7cff45e655f886da150e206c7acbe984df4ab71/gh/robindaumann/aoc2018/Cargo.toml [INFO] crate robindaumann/aoc2018 already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+ef01f29964df207f181bd5bcf236e41372a17273-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache lock [INFO] [stderr] Blocking waiting for file lock on package cache lock [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a7cff45e655f886da150e206c7acbe984df4ab71-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking robindaumann/aoc2018 against master#ef01f29964df207f181bd5bcf236e41372a17273 for pr-60620-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60620-1/worker-7/master#ef01f29964df207f181bd5bcf236e41372a17273:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60620-1/sources/master#ef01f29964df207f181bd5bcf236e41372a17273/gh/robindaumann/aoc2018:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+ef01f29964df207f181bd5bcf236e41372a17273-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] e1e1acccc82ee78e87f73ea66529f9001afc33f939329e1b0c6a12ce0b24a532 [INFO] running `"docker" "start" "-a" "e1e1acccc82ee78e87f73ea66529f9001afc33f939329e1b0c6a12ce0b24a532"` [INFO] [stderr] error: failed to acquire package cache lock [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] failed to open: /opt/crater/cargo-home/.package-cache [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] Read-only file system (os error 30) [INFO] running `"docker" "inspect" "e1e1acccc82ee78e87f73ea66529f9001afc33f939329e1b0c6a12ce0b24a532"` [INFO] running `"docker" "rm" "-f" "e1e1acccc82ee78e87f73ea66529f9001afc33f939329e1b0c6a12ce0b24a532"` [INFO] [stdout] e1e1acccc82ee78e87f73ea66529f9001afc33f939329e1b0c6a12ce0b24a532