Dec 19 16:36:54.500 INFO checking geoffreycopin/boggle_server against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 16:36:54.500 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-1/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 16:36:55.116 INFO [stdout] 8932443ec830308a1b47e03f84263a960d7f30aaca339dfc40ca9addb0875603
Dec 19 16:36:55.118 INFO running `"docker" "start" "-a" "8932443ec830308a1b47e03f84263a960d7f30aaca339dfc40ca9addb0875603"`
Dec 19 16:36:57.557 INFO [stderr]     Checking clap v2.31.2
Dec 19 16:36:57.565 INFO [stderr]     Checking backtrace-sys v0.1.16
Dec 19 16:36:58.005 INFO [stderr]     Checking backtrace v0.3.6
Dec 19 16:36:58.842 INFO [stderr]     Checking failure v0.1.1
Dec 19 16:37:02.755 INFO [stderr]     Checking boggle_server v0.1.0 (/opt/crater/workdir)
Dec 19 16:37:04.456 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.06s
Dec 19 16:37:05.114 INFO running `"docker" "inspect" "8932443ec830308a1b47e03f84263a960d7f30aaca339dfc40ca9addb0875603"`
Dec 19 16:37:05.398 INFO running `"docker" "rm" "-f" "8932443ec830308a1b47e03f84263a960d7f30aaca339dfc40ca9addb0875603"`
Dec 19 16:37:05.719 INFO [stdout] 8932443ec830308a1b47e03f84263a960d7f30aaca339dfc40ca9addb0875603