Dec 14 01:27:19.041 INFO testing bgmarx/recommender against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 14 01:27:19.041 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +bd47d6825bf4090517549d33cfef10d3300b4a75-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 14 01:27:19.377 INFO [stdout] 8e244c274159c318d66d72db82abe6d77c82e7c86696fc4cfda94f54405c33e2
Dec 14 01:27:19.379 INFO running `"docker" "start" "-a" "8e244c274159c318d66d72db82abe6d77c82e7c86696fc4cfda94f54405c33e2"`
Dec 14 01:27:21.143 INFO [stderr] usermod: no changes
Dec 14 01:27:21.514 INFO [stderr]    Compiling serde v1.0.70
Dec 14 01:27:21.527 INFO [stderr]    Compiling ndarray v0.11.2
Dec 14 01:27:21.563 INFO [stderr]    Compiling want v0.0.4
Dec 14 01:27:21.567 INFO [stderr]    Compiling uuid v0.6.5
Dec 14 01:27:21.591 INFO [stderr]    Compiling tokio-reactor v0.1.2
Dec 14 01:27:21.592 INFO [stderr]    Compiling backtrace v0.3.9
Dec 14 01:27:21.593 INFO [stderr]    Compiling serde_derive v1.0.70
Dec 14 01:27:21.600 INFO [stderr]    Compiling tokio-threadpool v0.1.5
Dec 14 01:27:25.751 INFO [stderr]    Compiling hibitset v0.5.1
Dec 14 01:27:25.783 INFO [stderr]    Compiling mime_guess v2.0.0-alpha.6
Dec 14 01:27:27.783 INFO [stderr]    Compiling failure v0.1.2
Dec 14 01:27:31.299 INFO [stderr]    Compiling tokio-udp v0.1.1
Dec 14 01:27:32.475 INFO [stderr]    Compiling tokio-tcp v0.1.0
Dec 14 01:27:32.974 INFO [stderr]    Compiling tokio-fs v0.1.2
Dec 14 01:27:36.715 INFO [stderr]    Compiling tokio v0.1.7
Dec 14 01:27:41.775 INFO [stderr]    Compiling tokio-core v0.1.17
Dec 14 01:27:47.116 INFO [stderr]    Compiling hyper v0.11.27
Dec 14 01:27:47.122 INFO [stderr]    Compiling tokio-tls v0.1.4
Dec 14 01:27:47.950 INFO [stderr]    Compiling rand_core v0.2.1
Dec 14 01:27:47.950 INFO [stderr]    Compiling smallvec v0.5.1
Dec 14 01:27:47.950 INFO [stderr]    Compiling serde_urlencoded v0.5.2
Dec 14 01:27:47.950 INFO [stderr]    Compiling serde_json v1.0.24
Dec 14 01:27:47.950 INFO [stderr]    Compiling csv v1.0.0
Dec 14 01:27:52.108 INFO [stderr]    Compiling bincode v0.9.2
Dec 14 01:27:53.559 INFO [stderr]    Compiling rand v0.5.4
Dec 14 01:28:10.388 INFO [stderr]    Compiling hyper-tls v0.1.4
Dec 14 01:28:10.799 INFO [stderr]    Compiling wyrm v0.9.1
Dec 14 01:28:13.159 INFO [stderr]    Compiling reqwest v0.8.7
Dec 14 01:28:23.057 INFO [stderr]    Compiling sbr v0.4.0
Dec 14 01:28:32.403 INFO [stderr]    Compiling goodbooks-recommender v0.1.0 (/source)
Dec 14 01:28:36.823 INFO [stderr] warning: unused variable: `title_to_id`
Dec 14 01:28:36.823 INFO [stderr]    --> src/main.rs:226:10
Dec 14 01:28:36.823 INFO [stderr]     |
Dec 14 01:28:36.823 INFO [stderr] 226 |          title_to_id) = deserialize_books(books_path).unwrap();
Dec 14 01:28:36.823 INFO [stderr]     |          ^^^^^^^^^^^ help: consider using `_title_to_id` instead
Dec 14 01:28:36.823 INFO [stderr]     |
Dec 14 01:28:36.823 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 14 01:28:36.823 INFO [stderr] 
Dec 14 01:28:45.078 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 23s
Dec 14 01:28:45.102 INFO [stderr] su: No module specific data is present
Dec 14 01:28:46.157 INFO running `"docker" "inspect" "8e244c274159c318d66d72db82abe6d77c82e7c86696fc4cfda94f54405c33e2"`
Dec 14 01:28:46.589 INFO running `"docker" "rm" "-f" "8e244c274159c318d66d72db82abe6d77c82e7c86696fc4cfda94f54405c33e2"`
Dec 14 01:28:46.943 INFO [stdout] 8e244c274159c318d66d72db82abe6d77c82e7c86696fc4cfda94f54405c33e2
Dec 14 01:28:46.949 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 14 01:28:47.519 INFO [stdout] 8443d49d714677393e538bba3ff629f0c406d90a5f7b122be3627f4c688e183d
Dec 14 01:28:47.524 INFO running `"docker" "start" "-a" "8443d49d714677393e538bba3ff629f0c406d90a5f7b122be3627f4c688e183d"`
Dec 14 01:28:48.886 INFO [stderr] usermod: no changes
Dec 14 01:28:49.232 INFO [stderr]    Compiling goodbooks-recommender v0.1.0 (/source)
Dec 14 01:28:54.058 INFO [stderr] warning: unused variable: `title_to_id`
Dec 14 01:28:54.058 INFO [stderr]    --> src/main.rs:226:10
Dec 14 01:28:54.058 INFO [stderr]     |
Dec 14 01:28:54.058 INFO [stderr] 226 |          title_to_id) = deserialize_books(books_path).unwrap();
Dec 14 01:28:54.058 INFO [stderr]     |          ^^^^^^^^^^^ help: consider using `_title_to_id` instead
Dec 14 01:28:54.058 INFO [stderr]     |
Dec 14 01:28:54.058 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 14 01:28:54.058 INFO [stderr] 
Dec 14 01:28:54.520 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.59s
Dec 14 01:28:54.543 INFO [stderr] su: No module specific data is present
Dec 14 01:28:55.350 INFO running `"docker" "inspect" "8443d49d714677393e538bba3ff629f0c406d90a5f7b122be3627f4c688e183d"`
Dec 14 01:28:55.585 INFO running `"docker" "rm" "-f" "8443d49d714677393e538bba3ff629f0c406d90a5f7b122be3627f4c688e183d"`
Dec 14 01:28:55.835 INFO [stdout] 8443d49d714677393e538bba3ff629f0c406d90a5f7b122be3627f4c688e183d
Dec 14 01:28:55.840 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 14 01:28:56.451 INFO [stdout] 03f1780571c46aebf8ab9acbfdabf10137e511da671128754ebbe1db6ef1bd6c
Dec 14 01:28:56.451 INFO running `"docker" "start" "-a" "03f1780571c46aebf8ab9acbfdabf10137e511da671128754ebbe1db6ef1bd6c"`
Dec 14 01:28:57.879 INFO [stderr] usermod: no changes
Dec 14 01:28:58.319 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
Dec 14 01:28:58.335 INFO [stderr]      Running /target/debug/deps/goodbooks_recommender-abf2e3779408c5d9
Dec 14 01:28:58.338 INFO [stdout] 
Dec 14 01:28:58.338 INFO [stdout] running 0 tests
Dec 14 01:28:58.338 INFO [stdout] 
Dec 14 01:28:58.338 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 14 01:28:58.338 INFO [stdout] 
Dec 14 01:28:58.347 INFO [stderr] su: No module specific data is present
Dec 14 01:28:59.173 INFO running `"docker" "inspect" "03f1780571c46aebf8ab9acbfdabf10137e511da671128754ebbe1db6ef1bd6c"`
Dec 14 01:28:59.428 INFO running `"docker" "rm" "-f" "03f1780571c46aebf8ab9acbfdabf10137e511da671128754ebbe1db6ef1bd6c"`
Dec 14 01:28:59.759 INFO [stdout] 03f1780571c46aebf8ab9acbfdabf10137e511da671128754ebbe1db6ef1bd6c