Dec 19 12:16:23.504 INFO checking mt-caret/c10e against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 12:16:23.504 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/mt-caret/c10e:/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 12:16:23.887 INFO [stdout] fe8daea40056f44d82ff3201a5e2dfd8588b233c83b2519420d1821fcf3f0daf
Dec 19 12:16:23.888 INFO running `"docker" "start" "-a" "fe8daea40056f44d82ff3201a5e2dfd8588b233c83b2519420d1821fcf3f0daf"`
Dec 19 12:16:24.630 INFO [stderr]     Checking natural v0.3.0
Dec 19 12:16:24.630 INFO [stderr]    Compiling stemmer v0.3.2
Dec 19 12:16:26.808 INFO [stderr]     Checking c10e v0.1.0 (/opt/crater/workdir)
Dec 19 12:16:27.164 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.57s
Dec 19 12:16:27.482 INFO running `"docker" "inspect" "fe8daea40056f44d82ff3201a5e2dfd8588b233c83b2519420d1821fcf3f0daf"`
Dec 19 12:16:27.679 INFO running `"docker" "rm" "-f" "fe8daea40056f44d82ff3201a5e2dfd8588b233c83b2519420d1821fcf3f0daf"`
Dec 19 12:16:27.816 INFO [stdout] fe8daea40056f44d82ff3201a5e2dfd8588b233c83b2519420d1821fcf3f0daf