Dec 19 17:59:54.191 INFO checking dgryski/rust-bf against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 17:59:54.191 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/dgryski/rust-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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 17:59:54.487 INFO [stdout] 75df7acd4c550e12d5a649897ae0e847e2a3b757260163d6f67e8924e39a1921
Dec 19 17:59:54.488 INFO running `"docker" "start" "-a" "75df7acd4c550e12d5a649897ae0e847e2a3b757260163d6f67e8924e39a1921"`
Dec 19 17:59:55.448 INFO [stderr]     Checking bf v0.1.0 (/opt/crater/workdir)
Dec 19 17:59:55.728 INFO [stderr] warning: unused variable: `arg1`
Dec 19 17:59:55.728 INFO [stderr]   --> src/main.rs:17:13
Dec 19 17:59:55.728 INFO [stderr]    |
Dec 19 17:59:55.728 INFO [stderr] 17 |     let ref arg1 = args[1];
Dec 19 17:59:55.728 INFO [stderr]    |             ^^^^ help: consider using `_arg1` instead
Dec 19 17:59:55.728 INFO [stderr]    |
Dec 19 17:59:55.728 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 17:59:55.728 INFO [stderr] 
Dec 19 17:59:55.750 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 17:59:55.750 INFO [stderr]   --> src/main.rs:31:9
Dec 19 17:59:55.750 INFO [stderr]    |
Dec 19 17:59:55.750 INFO [stderr] 31 |         io::stderr().write(err.as_bytes());
Dec 19 17:59:55.750 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:59:55.750 INFO [stderr]    |
Dec 19 17:59:55.750 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 17:59:55.750 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 17:59:55.750 INFO [stderr] 
Dec 19 17:59:55.832 INFO [stderr] warning: unused variable: `arg1`
Dec 19 17:59:55.832 INFO [stderr]   --> src/main.rs:17:13
Dec 19 17:59:55.832 INFO [stderr]    |
Dec 19 17:59:55.832 INFO [stderr] 17 |     let ref arg1 = args[1];
Dec 19 17:59:55.832 INFO [stderr]    |             ^^^^ help: consider using `_arg1` instead
Dec 19 17:59:55.832 INFO [stderr]    |
Dec 19 17:59:55.832 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 17:59:55.832 INFO [stderr] 
Dec 19 17:59:55.846 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 17:59:55.846 INFO [stderr]   --> src/main.rs:31:9
Dec 19 17:59:55.846 INFO [stderr]    |
Dec 19 17:59:55.846 INFO [stderr] 31 |         io::stderr().write(err.as_bytes());
Dec 19 17:59:55.846 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:59:55.846 INFO [stderr]    |
Dec 19 17:59:55.846 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 17:59:55.846 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 17:59:55.846 INFO [stderr] 
Dec 19 17:59:55.884 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
Dec 19 17:59:56.660 INFO running `"docker" "inspect" "75df7acd4c550e12d5a649897ae0e847e2a3b757260163d6f67e8924e39a1921"`
Dec 19 17:59:57.020 INFO running `"docker" "rm" "-f" "75df7acd4c550e12d5a649897ae0e847e2a3b757260163d6f67e8924e39a1921"`
Dec 19 17:59:57.276 INFO [stdout] 75df7acd4c550e12d5a649897ae0e847e2a3b757260163d6f67e8924e39a1921