Dec 18 08:44:52.683 INFO checking 8flag/hello_rust against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 08:44:52.683 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-5/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/8flag/hello_rust:/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 08:44:52.936 INFO [stdout] e3a0dc903b315c8007b8e343aadb01813c57773c3e224a36d94d223c9ceb9f7e
Dec 18 08:44:52.940 INFO running `"docker" "start" "-a" "e3a0dc903b315c8007b8e343aadb01813c57773c3e224a36d94d223c9ceb9f7e"`
Dec 18 08:44:53.616 INFO [stderr]     Checking hello_rust v0.1.0 (/opt/crater/workdir)
Dec 18 08:44:53.818 INFO [stderr] warning: unused variable: `b`
Dec 18 08:44:53.818 INFO [stderr]  --> src/main.rs:5:9
Dec 18 08:44:53.818 INFO [stderr]   |
Dec 18 08:44:53.818 INFO [stderr] 5 |     let b:&str = &a;
Dec 18 08:44:53.818 INFO [stderr]   |         ^ help: consider using `_b` instead
Dec 18 08:44:53.818 INFO [stderr]   |
Dec 18 08:44:53.818 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 18 08:44:53.818 INFO [stderr] 
Dec 18 08:44:53.851 INFO [stderr] warning: unused variable: `b`
Dec 18 08:44:53.851 INFO [stderr]  --> src/main.rs:5:9
Dec 18 08:44:53.851 INFO [stderr]   |
Dec 18 08:44:53.851 INFO [stderr] 5 |     let b:&str = &a;
Dec 18 08:44:53.851 INFO [stderr]   |         ^ help: consider using `_b` instead
Dec 18 08:44:53.851 INFO [stderr]   |
Dec 18 08:44:53.851 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 18 08:44:53.851 INFO [stderr] 
Dec 18 08:44:53.867 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.26s
Dec 18 08:44:54.110 INFO running `"docker" "inspect" "e3a0dc903b315c8007b8e343aadb01813c57773c3e224a36d94d223c9ceb9f7e"`
Dec 18 08:44:54.178 INFO running `"docker" "rm" "-f" "e3a0dc903b315c8007b8e343aadb01813c57773c3e224a36d94d223c9ceb9f7e"`
Dec 18 08:44:54.336 INFO [stdout] e3a0dc903b315c8007b8e343aadb01813c57773c3e224a36d94d223c9ceb9f7e