Dec 18 02:59:22.069 INFO checking brinchj/rustfest-fastware against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 02:59:22.069 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/brinchj/rustfest-fastware:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 02:59:22.618 INFO [stdout] dce6c47f202c54770a271d00cae5112eb6dca21cc8f6fb6d215d8d6389af8353
Dec 18 02:59:22.622 INFO running `"docker" "start" "-a" "dce6c47f202c54770a271d00cae5112eb6dca21cc8f6fb6d215d8d6389af8353"`
Dec 18 02:59:24.196 INFO [stderr]     Checking memchr v2.0.1
Dec 18 02:59:24.196 INFO [stderr]    Compiling im v10.2.0
Dec 18 02:59:24.692 INFO [stderr]     Checking combine v3.2.0
Dec 18 02:59:44.362 INFO [stderr]     Checking rustfest v0.1.0 (/opt/crater/workdir)
Dec 18 02:59:46.700 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 02:59:46.701 INFO [stderr]    --> src/lib.rs:387:17
Dec 18 02:59:46.701 INFO [stderr]     |
Dec 18 02:59:46.701 INFO [stderr] 387 |                 black_box(eval(&line, &mut env));
Dec 18 02:59:46.701 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 02:59:46.702 INFO [stderr]     |
Dec 18 02:59:46.702 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 02:59:46.702 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 02:59:46.702 INFO [stderr] 
Dec 18 02:59:46.739 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.59s
Dec 18 02:59:48.220 INFO running `"docker" "inspect" "dce6c47f202c54770a271d00cae5112eb6dca21cc8f6fb6d215d8d6389af8353"`
Dec 18 02:59:48.566 INFO running `"docker" "rm" "-f" "dce6c47f202c54770a271d00cae5112eb6dca21cc8f6fb6d215d8d6389af8353"`
Dec 18 02:59:48.932 INFO [stdout] dce6c47f202c54770a271d00cae5112eb6dca21cc8f6fb6d215d8d6389af8353