[INFO] updating cached repository omaskery/derpy [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/omaskery/derpy [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/omaskery/derpy" "work/ex/pr-60620-1/sources/master#ef01f29964df207f181bd5bcf236e41372a17273/gh/omaskery/derpy"` [INFO] [stderr] Cloning into 'work/ex/pr-60620-1/sources/master#ef01f29964df207f181bd5bcf236e41372a17273/gh/omaskery/derpy'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/omaskery/derpy" "work/ex/pr-60620-1/sources/try#a7cff45e655f886da150e206c7acbe984df4ab71/gh/omaskery/derpy"` [INFO] [stderr] Cloning into 'work/ex/pr-60620-1/sources/try#a7cff45e655f886da150e206c7acbe984df4ab71/gh/omaskery/derpy'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 01ad0f9357368b4c7ad4e6aa05892f2b48e643f3 [INFO] sha for GitHub repo omaskery/derpy: 01ad0f9357368b4c7ad4e6aa05892f2b48e643f3 [INFO] validating manifest of omaskery/derpy 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 omaskery/derpy 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 omaskery/derpy [INFO] finished frobbing omaskery/derpy [INFO] frobbed toml for omaskery/derpy written to work/ex/pr-60620-1/sources/master#ef01f29964df207f181bd5bcf236e41372a17273/gh/omaskery/derpy/Cargo.toml [INFO] started frobbing omaskery/derpy [INFO] finished frobbing omaskery/derpy [INFO] frobbed toml for omaskery/derpy written to work/ex/pr-60620-1/sources/try#a7cff45e655f886da150e206c7acbe984df4ab71/gh/omaskery/derpy/Cargo.toml [INFO] crate omaskery/derpy 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 omaskery/derpy 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/omaskery/derpy:/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] 1d9c840bc94bd7af0fdc940c1948e50e79ac28edafcc854fe193bf954ff85aa1 [INFO] running `"docker" "start" "-a" "1d9c840bc94bd7af0fdc940c1948e50e79ac28edafcc854fe193bf954ff85aa1"` [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" "1d9c840bc94bd7af0fdc940c1948e50e79ac28edafcc854fe193bf954ff85aa1"` [INFO] running `"docker" "rm" "-f" "1d9c840bc94bd7af0fdc940c1948e50e79ac28edafcc854fe193bf954ff85aa1"` [INFO] [stdout] 1d9c840bc94bd7af0fdc940c1948e50e79ac28edafcc854fe193bf954ff85aa1