[INFO] updating cached repository racr-rust/racrc
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/racr-rust/racrc
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/racr-rust/racrc" "work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/racr-rust/racrc"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/racr-rust/racrc'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/racr-rust/racrc" "work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/racr-rust/racrc"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/racr-rust/racrc'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a71a84fe9febfd4e03781365f4bd31943a305de0
[INFO] sha for GitHub repo racr-rust/racrc: a71a84fe9febfd4e03781365f4bd31943a305de0
[INFO] validating manifest of racr-rust/racrc on toolchain master#a850a426491e14186af2250549bf41256b5938d2
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of racr-rust/racrc on toolchain try#06a150c7d11500b41499224f165e9de1de096768
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing racr-rust/racrc
[INFO] finished frobbing racr-rust/racrc
[INFO] frobbed toml for racr-rust/racrc written to work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/racr-rust/racrc/Cargo.toml
[INFO] started frobbing racr-rust/racrc
[INFO] finished frobbing racr-rust/racrc
[INFO] frobbed toml for racr-rust/racrc written to work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/racr-rust/racrc/Cargo.toml
[INFO] crate racr-rust/racrc already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking racr-rust/racrc against master#a850a426491e14186af2250549bf41256b5938d2 for pr-60162
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60162/worker-4/master#a850a426491e14186af2250549bf41256b5938d2:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/racr-rust/racrc:/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" "+a850a426491e14186af2250549bf41256b5938d2-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] eb3095600ce9d85e32b6e1d2967e0b172c318ec91e9036c66ea480bf3dae7238
[INFO] running `"docker" "start" "-a" "eb3095600ce9d85e32b6e1d2967e0b172c318ec91e9036c66ea480bf3dae7238"`
[INFO] [stderr] error: failed to load source for a dependency on `racr`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Unable to update https://github.com/racr-rust/racr-rust.git?rev=1f8df4bb8685e874bdfbd661c18badd20804b3e7#1f8df4bb
[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" "eb3095600ce9d85e32b6e1d2967e0b172c318ec91e9036c66ea480bf3dae7238"`
[INFO] running `"docker" "rm" "-f" "eb3095600ce9d85e32b6e1d2967e0b172c318ec91e9036c66ea480bf3dae7238"`
[INFO] [stdout] eb3095600ce9d85e32b6e1d2967e0b172c318ec91e9036c66ea480bf3dae7238