Dec 19 12:23:19.105 INFO checking mpdrescher/pottcpp-rust-vortrag against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 12:23:19.105 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-4/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/mpdrescher/pottcpp-rust-vortrag:/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 12:23:19.707 INFO [stdout] cdab3f150dfd81d986e77dee71dcc1137c527fc42bd6284453dfef8ec28c4dc7
Dec 19 12:23:19.709 INFO running `"docker" "start" "-a" "cdab3f150dfd81d986e77dee71dcc1137c527fc42bd6284453dfef8ec28c4dc7"`
Dec 19 12:23:22.263 INFO [stderr]     Checking tokio-timer v0.1.2
Dec 19 12:23:22.263 INFO [stderr]     Checking futures-cpupool v0.1.5
Dec 19 12:23:23.102 INFO [stderr]     Checking cppvortrag v0.1.0 (/opt/crater/workdir)
Dec 19 12:23:24.045 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.87s
Dec 19 12:23:25.668 INFO running `"docker" "inspect" "cdab3f150dfd81d986e77dee71dcc1137c527fc42bd6284453dfef8ec28c4dc7"`
Dec 19 12:23:25.942 INFO running `"docker" "rm" "-f" "cdab3f150dfd81d986e77dee71dcc1137c527fc42bd6284453dfef8ec28c4dc7"`
Dec 19 12:23:26.240 INFO [stdout] cdab3f150dfd81d986e77dee71dcc1137c527fc42bd6284453dfef8ec28c4dc7