Dec 19 19:02:47.016 INFO checking christian-blades-cb/rust-length-encoding against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 19:02:47.016 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-2/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/christian-blades-cb/rust-length-encoding:/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 19:02:47.417 INFO [stdout] 1582347981d8b9309dd7c159c517d04cb25f89420d6c2fcef5a0c15e9c7a54c1
Dec 19 19:02:47.423 INFO running `"docker" "start" "-a" "1582347981d8b9309dd7c159c517d04cb25f89420d6c2fcef5a0c15e9c7a54c1"`
Dec 19 19:02:48.790 INFO [stderr]     Checking either v1.3.0
Dec 19 19:02:49.132 INFO [stderr]     Checking itertools v0.7.2
Dec 19 19:02:50.760 INFO [stderr]     Checking rle v0.1.0 (/opt/crater/workdir)
Dec 19 19:02:50.995 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.22s
Dec 19 19:02:51.351 INFO running `"docker" "inspect" "1582347981d8b9309dd7c159c517d04cb25f89420d6c2fcef5a0c15e9c7a54c1"`
Dec 19 19:02:51.462 INFO running `"docker" "rm" "-f" "1582347981d8b9309dd7c159c517d04cb25f89420d6c2fcef5a0c15e9c7a54c1"`
Dec 19 19:02:51.581 INFO [stdout] 1582347981d8b9309dd7c159c517d04cb25f89420d6c2fcef5a0c15e9c7a54c1