[INFO] updating cached repository achntrl/rust-webserver [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/achntrl/rust-webserver [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/achntrl/rust-webserver" "work/ex/pr-60620-1/sources/master#ef01f29964df207f181bd5bcf236e41372a17273/gh/achntrl/rust-webserver"` [INFO] [stderr] Cloning into 'work/ex/pr-60620-1/sources/master#ef01f29964df207f181bd5bcf236e41372a17273/gh/achntrl/rust-webserver'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/achntrl/rust-webserver" "work/ex/pr-60620-1/sources/try#a7cff45e655f886da150e206c7acbe984df4ab71/gh/achntrl/rust-webserver"` [INFO] [stderr] Cloning into 'work/ex/pr-60620-1/sources/try#a7cff45e655f886da150e206c7acbe984df4ab71/gh/achntrl/rust-webserver'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] e5ff503ccb0ad9a3a068a8e76e259d3a5ea19701 [INFO] sha for GitHub repo achntrl/rust-webserver: e5ff503ccb0ad9a3a068a8e76e259d3a5ea19701 [INFO] validating manifest of achntrl/rust-webserver 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 achntrl/rust-webserver 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 achntrl/rust-webserver [INFO] finished frobbing achntrl/rust-webserver [INFO] frobbed toml for achntrl/rust-webserver written to work/ex/pr-60620-1/sources/master#ef01f29964df207f181bd5bcf236e41372a17273/gh/achntrl/rust-webserver/Cargo.toml [INFO] started frobbing achntrl/rust-webserver [INFO] finished frobbing achntrl/rust-webserver [INFO] frobbed toml for achntrl/rust-webserver written to work/ex/pr-60620-1/sources/try#a7cff45e655f886da150e206c7acbe984df4ab71/gh/achntrl/rust-webserver/Cargo.toml [INFO] crate achntrl/rust-webserver 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 achntrl/rust-webserver against try#a7cff45e655f886da150e206c7acbe984df4ab71 for pr-60620-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60620-1/worker-7/try#a7cff45e655f886da150e206c7acbe984df4ab71:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60620-1/sources/try#a7cff45e655f886da150e206c7acbe984df4ab71/gh/achntrl/rust-webserver:/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" "+a7cff45e655f886da150e206c7acbe984df4ab71-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 399ae3c1dac71bbd314738687810050ba8f16b84947dd950c94dcc02e10f6b9b [INFO] running `"docker" "start" "-a" "399ae3c1dac71bbd314738687810050ba8f16b84947dd950c94dcc02e10f6b9b"` [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" "399ae3c1dac71bbd314738687810050ba8f16b84947dd950c94dcc02e10f6b9b"` [INFO] running `"docker" "rm" "-f" "399ae3c1dac71bbd314738687810050ba8f16b84947dd950c94dcc02e10f6b9b"` [INFO] [stdout] 399ae3c1dac71bbd314738687810050ba8f16b84947dd950c94dcc02e10f6b9b