Dec 18 18:02:11.008 INFO checking btree-0.1.0 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 18:02:11.008 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 18:02:11.246 INFO [stdout] 23023169172cd73fa7252089d4436a0eeb3bad636a348539399c78fac21bf049
Dec 18 18:02:11.249 INFO running `"docker" "start" "-a" "23023169172cd73fa7252089d4436a0eeb3bad636a348539399c78fac21bf049"`
Dec 18 18:02:11.999 INFO [stderr] warning: `panic` setting is ignored for `test` profile
Dec 18 18:02:12.024 INFO [stderr]     Checking raw_serde v0.1.4
Dec 18 18:02:17.099 INFO [stderr]     Checking btree v0.1.0 (/opt/crater/workdir)
Dec 18 18:02:17.867 INFO [stderr] warning: unused variable: `x`
Dec 18 18:02:17.867 INFO [stderr]   --> src/lib.rs:26:13
Dec 18 18:02:17.867 INFO [stderr]    |
Dec 18 18:02:17.867 INFO [stderr] 26 |         let x = t.search(&i.to_string()).unwrap().unwrap();
Dec 18 18:02:17.867 INFO [stderr]    |             ^ help: consider using `_x` instead
Dec 18 18:02:17.867 INFO [stderr]    |
Dec 18 18:02:17.867 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 18:02:17.868 INFO [stderr] 
Dec 18 18:02:17.956 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.96s
Dec 18 18:02:18.508 INFO running `"docker" "inspect" "23023169172cd73fa7252089d4436a0eeb3bad636a348539399c78fac21bf049"`
Dec 18 18:02:18.710 INFO running `"docker" "rm" "-f" "23023169172cd73fa7252089d4436a0eeb3bad636a348539399c78fac21bf049"`
Dec 18 18:02:18.960 INFO [stdout] 23023169172cd73fa7252089d4436a0eeb3bad636a348539399c78fac21bf049