[INFO] updating cached repository hmc-memsafe-2016f/wk5-solution [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/hmc-memsafe-2016f/wk5-solution [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/hmc-memsafe-2016f/wk5-solution" "work/ex/pr-60620-1/sources/master#ef01f29964df207f181bd5bcf236e41372a17273/gh/hmc-memsafe-2016f/wk5-solution"` [INFO] [stderr] Cloning into 'work/ex/pr-60620-1/sources/master#ef01f29964df207f181bd5bcf236e41372a17273/gh/hmc-memsafe-2016f/wk5-solution'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/hmc-memsafe-2016f/wk5-solution" "work/ex/pr-60620-1/sources/try#a7cff45e655f886da150e206c7acbe984df4ab71/gh/hmc-memsafe-2016f/wk5-solution"` [INFO] [stderr] Cloning into 'work/ex/pr-60620-1/sources/try#a7cff45e655f886da150e206c7acbe984df4ab71/gh/hmc-memsafe-2016f/wk5-solution'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 1a81e234c7c0fc4679f72cb33331044e96ab008a [INFO] sha for GitHub repo hmc-memsafe-2016f/wk5-solution: 1a81e234c7c0fc4679f72cb33331044e96ab008a [INFO] validating manifest of hmc-memsafe-2016f/wk5-solution 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 hmc-memsafe-2016f/wk5-solution 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 hmc-memsafe-2016f/wk5-solution [INFO] finished frobbing hmc-memsafe-2016f/wk5-solution [INFO] frobbed toml for hmc-memsafe-2016f/wk5-solution written to work/ex/pr-60620-1/sources/master#ef01f29964df207f181bd5bcf236e41372a17273/gh/hmc-memsafe-2016f/wk5-solution/Cargo.toml [INFO] started frobbing hmc-memsafe-2016f/wk5-solution [INFO] finished frobbing hmc-memsafe-2016f/wk5-solution [INFO] frobbed toml for hmc-memsafe-2016f/wk5-solution written to work/ex/pr-60620-1/sources/try#a7cff45e655f886da150e206c7acbe984df4ab71/gh/hmc-memsafe-2016f/wk5-solution/Cargo.toml [INFO] crate hmc-memsafe-2016f/wk5-solution 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a7cff45e655f886da150e206c7acbe984df4ab71-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking hmc-memsafe-2016f/wk5-solution 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/hmc-memsafe-2016f/wk5-solution:/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] 37ad4c812bce3608a4b76949f7cb77f1be2717fb62150a994bd14d96b47e8031 [INFO] running `"docker" "start" "-a" "37ad4c812bce3608a4b76949f7cb77f1be2717fb62150a994bd14d96b47e8031"` [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" "37ad4c812bce3608a4b76949f7cb77f1be2717fb62150a994bd14d96b47e8031"` [INFO] running `"docker" "rm" "-f" "37ad4c812bce3608a4b76949f7cb77f1be2717fb62150a994bd14d96b47e8031"` [INFO] [stdout] 37ad4c812bce3608a4b76949f7cb77f1be2717fb62150a994bd14d96b47e8031