Dec 19 19:06:53.142 INFO checking cheezgi/stones against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 19:06:53.142 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/cheezgi/stones:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 19:06:53.623 INFO [stdout] 49d416f903c9a472500d2392e1f051a3424d88321a9c6e20eba833e81878c13a
Dec 19 19:06:53.625 INFO running `"docker" "start" "-a" "49d416f903c9a472500d2392e1f051a3424d88321a9c6e20eba833e81878c13a"`
Dec 19 19:06:55.855 INFO [stderr]     Checking nix v0.5.1
Dec 19 19:06:59.256 INFO [stderr]     Checking rustyline v1.0.0
Dec 19 19:07:00.275 INFO [stderr]     Checking stones v0.5.0 (/opt/crater/workdir)
Dec 19 19:07:01.844 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.02s
Dec 19 19:07:02.344 INFO running `"docker" "inspect" "49d416f903c9a472500d2392e1f051a3424d88321a9c6e20eba833e81878c13a"`
Dec 19 19:07:02.565 INFO running `"docker" "rm" "-f" "49d416f903c9a472500d2392e1f051a3424d88321a9c6e20eba833e81878c13a"`
Dec 19 19:07:02.844 INFO [stdout] 49d416f903c9a472500d2392e1f051a3424d88321a9c6e20eba833e81878c13a