Dec 19 18:54:41.194 INFO checking cmckni3/rust-sandbox against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 18:54:41.194 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-1/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/cmckni3/rust-sandbox:/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 18:54:41.712 INFO [stdout] e8f18a78baa0e832435c905ab7e498e38cba9ee611fadf0ad26586ba9f35568d
Dec 19 18:54:41.718 INFO running `"docker" "start" "-a" "e8f18a78baa0e832435c905ab7e498e38cba9ee611fadf0ad26586ba9f35568d"`
Dec 19 18:54:43.437 INFO [stderr]     Checking http v0.1.1
Dec 19 18:54:43.437 INFO [stderr]     Checking env_logger v0.4.3
Dec 19 18:54:46.788 INFO [stderr]     Checking simple-server v0.1.0
Dec 19 18:54:47.208 INFO [stderr]     Checking hello_world v0.1.0 (/opt/crater/workdir)
Dec 19 18:54:47.920 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.57s
Dec 19 18:54:48.910 INFO running `"docker" "inspect" "e8f18a78baa0e832435c905ab7e498e38cba9ee611fadf0ad26586ba9f35568d"`
Dec 19 18:54:49.258 INFO running `"docker" "rm" "-f" "e8f18a78baa0e832435c905ab7e498e38cba9ee611fadf0ad26586ba9f35568d"`
Dec 19 18:54:49.532 INFO [stdout] e8f18a78baa0e832435c905ab7e498e38cba9ee611fadf0ad26586ba9f35568d