Dec 19 08:35:10.838 INFO checking smolkov/mdbook-mosta against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 08:35:10.838 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-5/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/smolkov/mdbook-mosta:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 08:35:11.182 INFO [stdout] aec3e15e8990d7ed62aee87a51655e1242aacbff9feec4cd15281b82cd49e907
Dec 19 08:35:11.184 INFO running `"docker" "start" "-a" "aec3e15e8990d7ed62aee87a51655e1242aacbff9feec4cd15281b82cd49e907"`
Dec 19 08:35:12.611 INFO [stderr] error: failed to load source for a dependency on `mdbook`
Dec 19 08:35:12.611 INFO [stderr] 
Dec 19 08:35:12.611 INFO [stderr] Caused by:
Dec 19 08:35:12.611 INFO [stderr]   Unable to update https://github.com/badboy/mdBook?branch=fix-section-numbering#e6f0ef64
Dec 19 08:35:12.611 INFO [stderr] 
Dec 19 08:35:12.611 INFO [stderr] Caused by:
Dec 19 08:35:12.611 INFO [stderr]   failed to open: /opt/crater/cargo-home/git/.cargo-lock-git
Dec 19 08:35:12.611 INFO [stderr] 
Dec 19 08:35:12.611 INFO [stderr] Caused by:
Dec 19 08:35:12.611 INFO [stderr]   Read-only file system (os error 30)
Dec 19 08:35:13.263 INFO running `"docker" "inspect" "aec3e15e8990d7ed62aee87a51655e1242aacbff9feec4cd15281b82cd49e907"`
Dec 19 08:35:13.446 INFO running `"docker" "rm" "-f" "aec3e15e8990d7ed62aee87a51655e1242aacbff9feec4cd15281b82cd49e907"`
Dec 19 08:35:13.743 INFO [stdout] aec3e15e8990d7ed62aee87a51655e1242aacbff9feec4cd15281b82cd49e907