Dec 18 12:31:43.193 INFO checking rbtree-0.1.5 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 12:31:43.193 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/rbtree/0.1.5:/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 12:31:43.486 INFO [stdout] 5f0ead404895de356346228142428af6a22d749a8bf10985a22ee7bbdda362a9
Dec 18 12:31:43.490 INFO running `"docker" "start" "-a" "5f0ead404895de356346228142428af6a22d749a8bf10985a22ee7bbdda362a9"`
Dec 18 12:31:44.223 INFO [stderr]     Checking rbtree v0.1.5 (/opt/crater/workdir)
Dec 18 12:31:44.464 INFO [stderr] warning: unused import: `super::RBTree`
Dec 18 12:31:44.464 INFO [stderr]     --> src/lib.rs:1404:9
Dec 18 12:31:44.464 INFO [stderr]      |
Dec 18 12:31:44.464 INFO [stderr] 1404 |     use super::RBTree;
Dec 18 12:31:44.464 INFO [stderr]      |         ^^^^^^^^^^^^^
Dec 18 12:31:44.464 INFO [stderr]      |
Dec 18 12:31:44.464 INFO [stderr]      = note: #[warn(unused_imports)] on by default
Dec 18 12:31:44.464 INFO [stderr] 
Dec 18 12:31:45.184 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.96s
Dec 18 12:31:45.492 INFO running `"docker" "inspect" "5f0ead404895de356346228142428af6a22d749a8bf10985a22ee7bbdda362a9"`
Dec 18 12:31:45.642 INFO running `"docker" "rm" "-f" "5f0ead404895de356346228142428af6a22d749a8bf10985a22ee7bbdda362a9"`
Dec 18 12:31:45.800 INFO [stdout] 5f0ead404895de356346228142428af6a22d749a8bf10985a22ee7bbdda362a9