Dec 18 03:20:46.029 INFO checking bgmarx/recommender against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 03:20:46.029 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/gh/bgmarx/recommender:/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 03:20:46.359 INFO [stdout] bc0ad5bfbbcbdead1cc559a2dbbee51179b256c6f11935666b93db7f3510ae66
Dec 18 03:20:46.361 INFO running `"docker" "start" "-a" "bc0ad5bfbbcbdead1cc559a2dbbee51179b256c6f11935666b93db7f3510ae66"`
Dec 18 03:20:47.453 INFO [stderr]    Compiling ndarray v0.11.2
Dec 18 03:20:47.459 INFO [stderr]     Checking smallvec v0.5.1
Dec 18 03:20:47.460 INFO [stderr]     Checking csv v1.0.0
Dec 18 03:20:47.462 INFO [stderr]     Checking bincode v0.9.2
Dec 18 03:20:47.464 INFO [stderr]     Checking crossbeam-epoch v0.3.1
Dec 18 03:20:47.466 INFO [stderr]     Checking tokio-reactor v0.1.2
Dec 18 03:20:47.468 INFO [stderr]     Checking rand_core v0.2.1
Dec 18 03:20:47.470 INFO [stderr]     Checking tokio-threadpool v0.1.5
Dec 18 03:20:48.571 INFO [stderr]     Checking failure v0.1.2
Dec 18 03:20:48.961 INFO [stderr]     Checking crossbeam-deque v0.2.0
Dec 18 03:20:49.496 INFO [stderr]     Checking rand v0.5.4
Dec 18 03:20:49.690 INFO [stderr]     Checking rayon-core v1.4.1
Dec 18 03:20:49.871 INFO [stderr]     Checking tokio-tcp v0.1.0
Dec 18 03:20:50.082 INFO [stderr]     Checking tokio-udp v0.1.1
Dec 18 03:20:50.636 INFO [stderr]     Checking tokio-fs v0.1.2
Dec 18 03:20:50.996 INFO [stderr]     Checking rayon v1.0.2
Dec 18 03:20:51.464 INFO [stderr]     Checking tokio v0.1.7
Dec 18 03:20:52.647 INFO [stderr]     Checking tokio-core v0.1.17
Dec 18 03:20:54.742 INFO [stderr]     Checking tokio-tls v0.1.4
Dec 18 03:20:54.742 INFO [stderr]     Checking hyper v0.11.27
Dec 18 03:20:56.299 INFO [stderr]     Checking hibitset v0.5.1
Dec 18 03:21:01.248 INFO [stderr]     Checking wyrm v0.9.1
Dec 18 03:21:01.730 INFO [stderr]     Checking hyper-tls v0.1.4
Dec 18 03:21:02.860 INFO [stderr]     Checking reqwest v0.8.7
Dec 18 03:21:05.462 INFO [stderr]     Checking sbr v0.4.0
Dec 18 03:21:09.267 INFO [stderr]     Checking goodbooks-recommender v0.1.0 (/opt/crater/workdir)
Dec 18 03:21:11.556 INFO [stderr] warning: unused variable: `title_to_id`
Dec 18 03:21:11.556 INFO [stderr]    --> src/main.rs:226:10
Dec 18 03:21:11.556 INFO [stderr]     |
Dec 18 03:21:11.556 INFO [stderr] 226 |          title_to_id) = deserialize_books(books_path).unwrap();
Dec 18 03:21:11.556 INFO [stderr]     |          ^^^^^^^^^^^ help: consider using `_title_to_id` instead
Dec 18 03:21:11.556 INFO [stderr]     |
Dec 18 03:21:11.556 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 18 03:21:11.556 INFO [stderr] 
Dec 18 03:21:11.816 INFO [stderr] warning: unused variable: `title_to_id`
Dec 18 03:21:11.816 INFO [stderr]    --> src/main.rs:226:10
Dec 18 03:21:11.816 INFO [stderr]     |
Dec 18 03:21:11.816 INFO [stderr] 226 |          title_to_id) = deserialize_books(books_path).unwrap();
Dec 18 03:21:11.816 INFO [stderr]     |          ^^^^^^^^^^^ help: consider using `_title_to_id` instead
Dec 18 03:21:11.816 INFO [stderr]     |
Dec 18 03:21:11.816 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 18 03:21:11.816 INFO [stderr] 
Dec 18 03:21:11.964 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.83s
Dec 18 03:21:13.070 INFO running `"docker" "inspect" "bc0ad5bfbbcbdead1cc559a2dbbee51179b256c6f11935666b93db7f3510ae66"`
Dec 18 03:21:13.388 INFO running `"docker" "rm" "-f" "bc0ad5bfbbcbdead1cc559a2dbbee51179b256c6f11935666b93db7f3510ae66"`
Dec 18 03:21:13.711 INFO [stdout] bc0ad5bfbbcbdead1cc559a2dbbee51179b256c6f11935666b93db7f3510ae66