Dec 19 10:44:06.801 INFO checking portaloffreedom/rail against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 10:44:06.801 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/portaloffreedom/rail:/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 10:44:07.222 INFO [stdout] 76402be8493a7820c13610e7b760efc43ec7aa99597accf32e40893f5e7e8d9e
Dec 19 10:44:07.226 INFO running `"docker" "start" "-a" "76402be8493a7820c13610e7b760efc43ec7aa99597accf32e40893f5e7e8d9e"`
Dec 19 10:44:08.624 INFO [stderr] error: failed to load source for a dependency on `imap`
Dec 19 10:44:08.624 INFO [stderr] 
Dec 19 10:44:08.624 INFO [stderr] Caused by:
Dec 19 10:44:08.624 INFO [stderr]   Unable to update https://github.com/mattnenterprise/rust-imap.git#b45beb88
Dec 19 10:44:08.624 INFO [stderr] 
Dec 19 10:44:08.624 INFO [stderr] Caused by:
Dec 19 10:44:08.624 INFO [stderr]   failed to open: /opt/crater/cargo-home/git/.cargo-lock-git
Dec 19 10:44:08.624 INFO [stderr] 
Dec 19 10:44:08.624 INFO [stderr] Caused by:
Dec 19 10:44:08.624 INFO [stderr]   Read-only file system (os error 30)
Dec 19 10:44:09.208 INFO running `"docker" "inspect" "76402be8493a7820c13610e7b760efc43ec7aa99597accf32e40893f5e7e8d9e"`
Dec 19 10:44:09.314 INFO running `"docker" "rm" "-f" "76402be8493a7820c13610e7b760efc43ec7aa99597accf32e40893f5e7e8d9e"`
Dec 19 10:44:09.469 INFO [stdout] 76402be8493a7820c13610e7b760efc43ec7aa99597accf32e40893f5e7e8d9e