Dec 18 18:02:09.353 INFO checking btree-0.1.0 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 18:02:09.353 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/btree/0.1.0:/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 18:02:09.570 INFO [stdout] f90b3235fcd56d85c6aaaeb6e4c1768236186440628b9aa29f8edd179a7b1fc9
Dec 18 18:02:09.574 INFO running `"docker" "start" "-a" "f90b3235fcd56d85c6aaaeb6e4c1768236186440628b9aa29f8edd179a7b1fc9"`
Dec 18 18:02:10.628 INFO [stderr] warning: `panic` setting is ignored for `test` profile
Dec 18 18:02:10.664 INFO [stderr]    Compiling raw_serde_derive v0.1.2
Dec 18 18:02:11.960 INFO [stderr]     Checking raw_serde v0.1.4
Dec 18 18:02:16.944 INFO [stderr]     Checking btree v0.1.0 (/opt/crater/workdir)
Dec 18 18:02:17.784 INFO [stderr] warning: unused variable: `x`
Dec 18 18:02:17.784 INFO [stderr]   --> src/lib.rs:26:13
Dec 18 18:02:17.784 INFO [stderr]    |
Dec 18 18:02:17.784 INFO [stderr] 26 |         let x = t.search(&i.to_string()).unwrap().unwrap();
Dec 18 18:02:17.784 INFO [stderr]    |             ^ help: consider using `_x` instead
Dec 18 18:02:17.784 INFO [stderr]    |
Dec 18 18:02:17.784 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 18:02:17.784 INFO [stderr] 
Dec 18 18:02:17.864 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.26s
Dec 18 18:02:18.507 INFO running `"docker" "inspect" "f90b3235fcd56d85c6aaaeb6e4c1768236186440628b9aa29f8edd179a7b1fc9"`
Dec 18 18:02:18.733 INFO running `"docker" "rm" "-f" "f90b3235fcd56d85c6aaaeb6e4c1768236186440628b9aa29f8edd179a7b1fc9"`
Dec 18 18:02:18.996 INFO [stdout] f90b3235fcd56d85c6aaaeb6e4c1768236186440628b9aa29f8edd179a7b1fc9