[INFO] updating cached repository jcaesar/matrix-devclean
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jcaesar/matrix-devclean
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jcaesar/matrix-devclean" "work/ex/pr-60174/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/jcaesar/matrix-devclean"`
[INFO] [stderr] Cloning into 'work/ex/pr-60174/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/jcaesar/matrix-devclean'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jcaesar/matrix-devclean" "work/ex/pr-60174/sources/try#74092351c05ae61047b2be02024415546595e974/gh/jcaesar/matrix-devclean"`
[INFO] [stderr] Cloning into 'work/ex/pr-60174/sources/try#74092351c05ae61047b2be02024415546595e974/gh/jcaesar/matrix-devclean'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8096d58055587581e5523fa452d173f51cdb3c17
[INFO] sha for GitHub repo jcaesar/matrix-devclean: 8096d58055587581e5523fa452d173f51cdb3c17
[INFO] validating manifest of jcaesar/matrix-devclean on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jcaesar/matrix-devclean on toolchain try#74092351c05ae61047b2be02024415546595e974
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+74092351c05ae61047b2be02024415546595e974-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jcaesar/matrix-devclean
[INFO] finished frobbing jcaesar/matrix-devclean
[INFO] frobbed toml for jcaesar/matrix-devclean written to work/ex/pr-60174/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/jcaesar/matrix-devclean/Cargo.toml
[INFO] started frobbing jcaesar/matrix-devclean
[INFO] finished frobbing jcaesar/matrix-devclean
[INFO] frobbed toml for jcaesar/matrix-devclean written to work/ex/pr-60174/sources/try#74092351c05ae61047b2be02024415546595e974/gh/jcaesar/matrix-devclean/Cargo.toml
[INFO] crate jcaesar/matrix-devclean already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+74092351c05ae61047b2be02024415546595e974-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking jcaesar/matrix-devclean against master#e305df1846a6d985315917ae0c81b74af8b4e641 for pr-60174
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60174/worker-3/master#e305df1846a6d985315917ae0c81b74af8b4e641:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60174/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/jcaesar/matrix-devclean:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] fa2de5945cf06a685591d32af30dab89c1475cb1729ed271e4bdfb7f617360c0
[INFO] running `"docker" "start" "-a" "fa2de5945cf06a685591d32af30dab89c1475cb1729ed271e4bdfb7f617360c0"`
[INFO] [stderr] error: failed to load source for a dependency on `restson`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Unable to update https://github.com/jcaesar/restson-rust?rev=a6c190af161901b4052739ab530cffcf45a9469a#a6c190af
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to open: /opt/crater/cargo-home/git/.cargo-lock-git
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Read-only file system (os error 30)
[INFO] running `"docker" "inspect" "fa2de5945cf06a685591d32af30dab89c1475cb1729ed271e4bdfb7f617360c0"`
[INFO] running `"docker" "rm" "-f" "fa2de5945cf06a685591d32af30dab89c1475cb1729ed271e4bdfb7f617360c0"`
[INFO] [stdout] fa2de5945cf06a685591d32af30dab89c1475cb1729ed271e4bdfb7f617360c0