Dec 19 16:37:05.225 INFO checking geoffreycopin/boggle_server against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 16:37:05.225 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/geoffreycopin/boggle_server:/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 16:37:05.632 INFO [stdout] 8659466c7f6dba6a9e106eff7e4a7780ae1d2e7dd954d9c0ef7a7cc35ef9be6c
Dec 19 16:37:05.640 INFO running `"docker" "start" "-a" "8659466c7f6dba6a9e106eff7e4a7780ae1d2e7dd954d9c0ef7a7cc35ef9be6c"`
Dec 19 16:37:07.389 INFO [stderr]     Checking clap v2.31.2
Dec 19 16:37:07.404 INFO [stderr]     Checking failure v0.1.1
Dec 19 16:37:11.740 INFO [stderr]     Checking boggle_server v0.1.0 (/opt/crater/workdir)
Dec 19 16:37:13.417 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.22s
Dec 19 16:37:14.048 INFO running `"docker" "inspect" "8659466c7f6dba6a9e106eff7e4a7780ae1d2e7dd954d9c0ef7a7cc35ef9be6c"`
Dec 19 16:37:14.230 INFO running `"docker" "rm" "-f" "8659466c7f6dba6a9e106eff7e4a7780ae1d2e7dd954d9c0ef7a7cc35ef9be6c"`
Dec 19 16:37:14.416 INFO [stdout] 8659466c7f6dba6a9e106eff7e4a7780ae1d2e7dd954d9c0ef7a7cc35ef9be6c