[INFO] crate tango-client 0.1.0 is already in cache [INFO] extracting crate tango-client 0.1.0 into work/ex/pr-60620-1/sources/master#ef01f29964df207f181bd5bcf236e41372a17273/reg/tango-client/0.1.0 [INFO] extracting crate tango-client 0.1.0 into work/ex/pr-60620-1/sources/try#a7cff45e655f886da150e206c7acbe984df4ab71/reg/tango-client/0.1.0 [INFO] validating manifest of tango-client-0.1.0 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 tango-client-0.1.0 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 tango-client-0.1.0 [INFO] finished frobbing tango-client-0.1.0 [INFO] frobbed toml for tango-client-0.1.0 written to work/ex/pr-60620-1/sources/master#ef01f29964df207f181bd5bcf236e41372a17273/reg/tango-client/0.1.0/Cargo.toml [INFO] started frobbing tango-client-0.1.0 [INFO] finished frobbing tango-client-0.1.0 [INFO] frobbed toml for tango-client-0.1.0 written to work/ex/pr-60620-1/sources/try#a7cff45e655f886da150e206c7acbe984df4ab71/reg/tango-client/0.1.0/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+ef01f29964df207f181bd5bcf236e41372a17273-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a7cff45e655f886da150e206c7acbe984df4ab71-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] [stderr] Blocking waiting for file lock on package cache lock [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 tango-client-0.1.0 against master#ef01f29964df207f181bd5bcf236e41372a17273 for pr-60620-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60620-1/worker-6/master#ef01f29964df207f181bd5bcf236e41372a17273:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60620-1/sources/master#ef01f29964df207f181bd5bcf236e41372a17273/reg/tango-client/0.1.0:/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] 36379bafe2ef9a9e15db5383d979c589e058bce14fe6c21efdef229a041a5f85 [INFO] running `"docker" "start" "-a" "36379bafe2ef9a9e15db5383d979c589e058bce14fe6c21efdef229a041a5f85"` [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" "36379bafe2ef9a9e15db5383d979c589e058bce14fe6c21efdef229a041a5f85"` [INFO] running `"docker" "rm" "-f" "36379bafe2ef9a9e15db5383d979c589e058bce14fe6c21efdef229a041a5f85"` [INFO] [stdout] 36379bafe2ef9a9e15db5383d979c589e058bce14fe6c21efdef229a041a5f85