Dec 19 05:44:16.124 INFO checking wbowling/rcc against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 05:44:16.124 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/wbowling/rcc:/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 05:44:16.528 INFO [stdout] c4022a09a4514bf0de82b1fa1a632292cfb6fd5dab4ba928ca03ab54fc6ea7f3
Dec 19 05:44:16.534 INFO running `"docker" "start" "-a" "c4022a09a4514bf0de82b1fa1a632292cfb6fd5dab4ba928ca03ab54fc6ea7f3"`
Dec 19 05:44:18.000 INFO [stderr]     Checking itertools v0.7.5
Dec 19 05:44:20.234 INFO [stderr]     Checking rcc v0.1.0 (/opt/crater/workdir)
Dec 19 05:44:21.478 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.51s
Dec 19 05:44:22.441 INFO running `"docker" "inspect" "c4022a09a4514bf0de82b1fa1a632292cfb6fd5dab4ba928ca03ab54fc6ea7f3"`
Dec 19 05:44:22.696 INFO running `"docker" "rm" "-f" "c4022a09a4514bf0de82b1fa1a632292cfb6fd5dab4ba928ca03ab54fc6ea7f3"`
Dec 19 05:44:22.985 INFO [stdout] c4022a09a4514bf0de82b1fa1a632292cfb6fd5dab4ba928ca03ab54fc6ea7f3