[INFO] updating cached repository rsb007/Rust_Employee
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/rsb007/Rust_Employee
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/rsb007/Rust_Employee" "work/ex/pr-60620-1/sources/master#ef01f29964df207f181bd5bcf236e41372a17273/gh/rsb007/Rust_Employee"`
[INFO] [stderr] Cloning into 'work/ex/pr-60620-1/sources/master#ef01f29964df207f181bd5bcf236e41372a17273/gh/rsb007/Rust_Employee'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/rsb007/Rust_Employee" "work/ex/pr-60620-1/sources/try#a7cff45e655f886da150e206c7acbe984df4ab71/gh/rsb007/Rust_Employee"`
[INFO] [stderr] Cloning into 'work/ex/pr-60620-1/sources/try#a7cff45e655f886da150e206c7acbe984df4ab71/gh/rsb007/Rust_Employee'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a1cf28a8818a370cd4152f8367d54daa0396e522
[INFO] sha for GitHub repo rsb007/Rust_Employee: a1cf28a8818a370cd4152f8367d54daa0396e522
[INFO] validating manifest of rsb007/Rust_Employee 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 rsb007/Rust_Employee 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 rsb007/Rust_Employee
[INFO] finished frobbing rsb007/Rust_Employee
[INFO] frobbed toml for rsb007/Rust_Employee written to work/ex/pr-60620-1/sources/master#ef01f29964df207f181bd5bcf236e41372a17273/gh/rsb007/Rust_Employee/Cargo.toml
[INFO] started frobbing rsb007/Rust_Employee
[INFO] finished frobbing rsb007/Rust_Employee
[INFO] frobbed toml for rsb007/Rust_Employee written to work/ex/pr-60620-1/sources/try#a7cff45e655f886da150e206c7acbe984df4ab71/gh/rsb007/Rust_Employee/Cargo.toml
[INFO] crate rsb007/Rust_Employee 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] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] checking rsb007/Rust_Employee against master#ef01f29964df207f181bd5bcf236e41372a17273 for pr-60620-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60620-1/worker-0/master#ef01f29964df207f181bd5bcf236e41372a17273:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60620-1/sources/master#ef01f29964df207f181bd5bcf236e41372a17273/gh/rsb007/Rust_Employee:/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] 99b0f3b99a06e99aab6062423ac0ba53634d1eec5d1f9065e8ef7da9ee707e97
[INFO] running `"docker" "start" "-a" "99b0f3b99a06e99aab6062423ac0ba53634d1eec5d1f9065e8ef7da9ee707e97"`
[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" "99b0f3b99a06e99aab6062423ac0ba53634d1eec5d1f9065e8ef7da9ee707e97"`
[INFO] running `"docker" "rm" "-f" "99b0f3b99a06e99aab6062423ac0ba53634d1eec5d1f9065e8ef7da9ee707e97"`
[INFO] [stdout] 99b0f3b99a06e99aab6062423ac0ba53634d1eec5d1f9065e8ef7da9ee707e97