Dec 19 19:33:34.899 INFO checking brinchj/rustfest-fastware against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 19:33:34.899 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/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 19:33:35.260 INFO [stdout] 18f894f3bc5604d3d6579df9304a29d5d5a31c291e14b48d22588cc5bd4bf715
Dec 19 19:33:35.262 INFO running `"docker" "start" "-a" "18f894f3bc5604d3d6579df9304a29d5d5a31c291e14b48d22588cc5bd4bf715"`
Dec 19 19:33:36.557 INFO [stderr]    Compiling rustc_version v0.2.2
Dec 19 19:33:36.557 INFO [stderr]     Checking combine v3.2.0
Dec 19 19:33:37.968 INFO [stderr]    Compiling im v10.2.0
Dec 19 19:33:55.972 INFO [stderr]     Checking rustfest v0.1.0 (/opt/crater/workdir)
Dec 19 19:33:58.143 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 19:33:58.143 INFO [stderr]    --> src/lib.rs:387:17
Dec 19 19:33:58.144 INFO [stderr]     |
Dec 19 19:33:58.144 INFO [stderr] 387 |                 black_box(eval(&line, &mut env));
Dec 19 19:33:58.144 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:33:58.145 INFO [stderr]     |
Dec 19 19:33:58.145 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 19:33:58.145 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 19:33:58.145 INFO [stderr] 
Dec 19 19:33:58.230 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.73s
Dec 19 19:33:59.521 INFO running `"docker" "inspect" "18f894f3bc5604d3d6579df9304a29d5d5a31c291e14b48d22588cc5bd4bf715"`
Dec 19 19:33:59.926 INFO running `"docker" "rm" "-f" "18f894f3bc5604d3d6579df9304a29d5d5a31c291e14b48d22588cc5bd4bf715"`
Dec 19 19:34:00.296 INFO [stdout] 18f894f3bc5604d3d6579df9304a29d5d5a31c291e14b48d22588cc5bd4bf715