Dec 18 18:02:20.865 INFO checking bson-0.13.0 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 18:02:20.865 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/bson/0.13.0:/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 18:02:21.061 INFO [stdout] 3718c7c55b75ef65283fdb544ff39f360ced20ec55c74b819225bf70a5ddfa94
Dec 18 18:02:21.066 INFO running `"docker" "start" "-a" "3718c7c55b75ef65283fdb544ff39f360ced20ec55c74b819225bf70a5ddfa94"`
Dec 18 18:02:22.015 INFO [stderr]     Checking bson v0.13.0 (/opt/crater/workdir)
Dec 18 18:02:24.341 INFO [stderr] warning: unused variable: `tmp`
Dec 18 18:02:24.341 INFO [stderr]  --> examples/test.rs:7:9
Dec 18 18:02:24.341 INFO [stderr]   |
Dec 18 18:02:24.341 INFO [stderr] 7 |     let tmp = bson::to_bson(&map).unwrap();
Dec 18 18:02:24.341 INFO [stderr]   |         ^^^ help: consider using `_tmp` instead
Dec 18 18:02:24.341 INFO [stderr]   |
Dec 18 18:02:24.341 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 18 18:02:24.341 INFO [stderr] 
Dec 18 18:02:25.288 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.36s
Dec 18 18:02:25.596 INFO running `"docker" "inspect" "3718c7c55b75ef65283fdb544ff39f360ced20ec55c74b819225bf70a5ddfa94"`
Dec 18 18:02:25.742 INFO running `"docker" "rm" "-f" "3718c7c55b75ef65283fdb544ff39f360ced20ec55c74b819225bf70a5ddfa94"`
Dec 18 18:02:25.912 INFO [stdout] 3718c7c55b75ef65283fdb544ff39f360ced20ec55c74b819225bf70a5ddfa94