Dec 17 19:37:16.227 INFO checking millere/bf against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 19:37:16.227 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-1/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/millere/bf:/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 17 19:37:16.692 INFO [stdout] d98efc3de61944945302cf552fe47d079a90dfd8d9e00fb7233789c70ec9b293
Dec 17 19:37:16.698 INFO running `"docker" "start" "-a" "d98efc3de61944945302cf552fe47d079a90dfd8d9e00fb7233789c70ec9b293"`
Dec 17 19:37:18.340 INFO [stderr]     Checking bf v0.0.1 (/opt/crater/workdir)
Dec 17 19:37:18.564 INFO [stderr] warning: unused import: `std::io::Read`
Dec 17 19:37:18.564 INFO [stderr]  --> src/main.rs:2:5
Dec 17 19:37:18.564 INFO [stderr]   |
Dec 17 19:37:18.564 INFO [stderr] 2 | use std::io::Read;
Dec 17 19:37:18.564 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 17 19:37:18.564 INFO [stderr]   |
Dec 17 19:37:18.564 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 19:37:18.564 INFO [stderr] 
Dec 17 19:37:18.592 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 19:37:18.592 INFO [stderr]   --> src/main.rs:14:22
Dec 17 19:37:18.592 INFO [stderr]    |
Dec 17 19:37:18.592 INFO [stderr] 14 |             b'.' => {output.write(&mut buffer[mptr .. mptr+1]);},
Dec 17 19:37:18.592 INFO [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 19:37:18.592 INFO [stderr]    |
Dec 17 19:37:18.592 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 19:37:18.592 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 19:37:18.592 INFO [stderr] 
Dec 17 19:37:18.704 INFO [stderr] warning: unused import: `std::io::Read`
Dec 17 19:37:18.704 INFO [stderr]  --> src/main.rs:2:5
Dec 17 19:37:18.704 INFO [stderr]   |
Dec 17 19:37:18.704 INFO [stderr] 2 | use std::io::Read;
Dec 17 19:37:18.704 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 17 19:37:18.704 INFO [stderr]   |
Dec 17 19:37:18.704 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 19:37:18.704 INFO [stderr] 
Dec 17 19:37:18.714 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 19:37:18.715 INFO [stderr]   --> src/main.rs:14:22
Dec 17 19:37:18.715 INFO [stderr]    |
Dec 17 19:37:18.715 INFO [stderr] 14 |             b'.' => {output.write(&mut buffer[mptr .. mptr+1]);},
Dec 17 19:37:18.715 INFO [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 19:37:18.715 INFO [stderr]    |
Dec 17 19:37:18.715 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 19:37:18.715 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 19:37:18.715 INFO [stderr] 
Dec 17 19:37:18.756 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.44s
Dec 17 19:37:19.391 INFO running `"docker" "inspect" "d98efc3de61944945302cf552fe47d079a90dfd8d9e00fb7233789c70ec9b293"`
Dec 17 19:37:19.577 INFO running `"docker" "rm" "-f" "d98efc3de61944945302cf552fe47d079a90dfd8d9e00fb7233789c70ec9b293"`
Dec 17 19:37:19.670 INFO [stdout] d98efc3de61944945302cf552fe47d079a90dfd8d9e00fb7233789c70ec9b293