Dec 18 03:20:50.945 INFO checking bgmarx/recommender against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 03:20:50.945 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/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 03:20:51.250 INFO [stdout] bff808e0bd6f9aac6a9bae5e12b79beb86b64ce2945fa0f913e27be4ccc717d6
Dec 18 03:20:51.252 INFO running `"docker" "start" "-a" "bff808e0bd6f9aac6a9bae5e12b79beb86b64ce2945fa0f913e27be4ccc717d6"`
Dec 18 03:20:52.886 INFO [stderr]    Compiling serde v1.0.70
Dec 18 03:20:52.894 INFO [stderr]    Compiling ndarray v0.11.2
Dec 18 03:20:52.917 INFO [stderr]     Checking memchr v2.0.1
Dec 18 03:20:52.925 INFO [stderr]     Checking want v0.0.4
Dec 18 03:20:52.926 INFO [stderr]     Checking mio v0.6.15
Dec 18 03:20:52.927 INFO [stderr]     Checking tokio-io v0.1.7
Dec 18 03:20:52.928 INFO [stderr]    Compiling serde_derive v1.0.70
Dec 18 03:20:52.929 INFO [stderr]     Checking tokio-threadpool v0.1.5
Dec 18 03:20:54.187 INFO [stderr]     Checking rayon-core v1.4.1
Dec 18 03:20:54.432 INFO [stderr]     Checking failure v0.1.2
Dec 18 03:20:54.709 INFO [stderr]     Checking csv-core v0.1.4
Dec 18 03:20:56.451 INFO [stderr]     Checking mime_guess v2.0.0-alpha.6
Dec 18 03:20:57.067 INFO [stderr]     Checking rayon v1.0.2
Dec 18 03:20:57.299 INFO [stderr]     Checking tokio-codec v0.1.0
Dec 18 03:20:58.321 INFO [stderr]     Checking tokio-fs v0.1.2
Dec 18 03:20:58.836 INFO [stderr]     Checking tokio-reactor v0.1.2
Dec 18 03:21:00.088 INFO [stderr]     Checking tokio-udp v0.1.1
Dec 18 03:21:00.088 INFO [stderr]     Checking tokio-tcp v0.1.0
Dec 18 03:21:00.784 INFO [stderr]     Checking tokio v0.1.7
Dec 18 03:21:02.068 INFO [stderr]     Checking tokio-core v0.1.17
Dec 18 03:21:02.896 INFO [stderr]     Checking hibitset v0.5.1
Dec 18 03:21:04.648 INFO [stderr]     Checking hyper v0.11.27
Dec 18 03:21:04.648 INFO [stderr]     Checking tokio-tls v0.1.4
Dec 18 03:21:17.192 INFO [stderr]     Checking hyper-tls v0.1.4
Dec 18 03:21:18.408 INFO [stderr]     Checking rand_core v0.2.1
Dec 18 03:21:18.408 INFO [stderr]     Checking smallvec v0.5.1
Dec 18 03:21:18.416 INFO [stderr]     Checking serde_urlencoded v0.5.2
Dec 18 03:21:18.428 INFO [stderr]     Checking serde_json v1.0.24
Dec 18 03:21:18.428 INFO [stderr]     Checking bincode v0.9.2
Dec 18 03:21:18.428 INFO [stderr]     Checking csv v1.0.0
Dec 18 03:21:20.752 INFO [stderr]     Checking rand v0.5.4
Dec 18 03:21:23.196 INFO [stderr]     Checking reqwest v0.8.7
Dec 18 03:21:29.780 INFO [stderr]     Checking wyrm v0.9.1
Dec 18 03:21:32.264 INFO [stderr]     Checking sbr v0.4.0
Dec 18 03:21:35.629 INFO [stderr]     Checking goodbooks-recommender v0.1.0 (/opt/crater/workdir)
Dec 18 03:21:38.096 INFO [stderr] warning: unused variable: `title_to_id`
Dec 18 03:21:38.096 INFO [stderr]    --> src/main.rs:226:10
Dec 18 03:21:38.096 INFO [stderr]     |
Dec 18 03:21:38.096 INFO [stderr] 226 |          title_to_id) = deserialize_books(books_path).unwrap();
Dec 18 03:21:38.096 INFO [stderr]     |          ^^^^^^^^^^^ help: consider using `_title_to_id` instead
Dec 18 03:21:38.096 INFO [stderr]     |
Dec 18 03:21:38.096 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 18 03:21:38.096 INFO [stderr] 
Dec 18 03:21:38.396 INFO [stderr] warning: unused variable: `title_to_id`
Dec 18 03:21:38.396 INFO [stderr]    --> src/main.rs:226:10
Dec 18 03:21:38.396 INFO [stderr]     |
Dec 18 03:21:38.396 INFO [stderr] 226 |          title_to_id) = deserialize_books(books_path).unwrap();
Dec 18 03:21:38.396 INFO [stderr]     |          ^^^^^^^^^^^ help: consider using `_title_to_id` instead
Dec 18 03:21:38.396 INFO [stderr]     |
Dec 18 03:21:38.396 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 18 03:21:38.396 INFO [stderr] 
Dec 18 03:21:38.546 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.95s
Dec 18 03:21:39.775 INFO running `"docker" "inspect" "bff808e0bd6f9aac6a9bae5e12b79beb86b64ce2945fa0f913e27be4ccc717d6"`
Dec 18 03:21:40.148 INFO running `"docker" "rm" "-f" "bff808e0bd6f9aac6a9bae5e12b79beb86b64ce2945fa0f913e27be4ccc717d6"`
Dec 18 03:21:40.520 INFO [stdout] bff808e0bd6f9aac6a9bae5e12b79beb86b64ce2945fa0f913e27be4ccc717d6