Dec 04 14:31:52.760 INFO checking masonium/card-engine against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 14:31:52.761 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-0/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-alt check --frozen --all --all-targets" "-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 04 14:31:53.219 INFO [stdout] f5dceb2d949b6d6053f775fb91aeca0f580632d903ddb7c247fd23d8844afbfe
Dec 04 14:31:53.225 INFO running `"docker" "start" "-a" "f5dceb2d949b6d6053f775fb91aeca0f580632d903ddb7c247fd23d8844afbfe"`
Dec 04 14:31:54.311 INFO [stderr] usermod: no changes
Dec 04 14:31:54.459 INFO [stderr]    Compiling ndarray v0.9.1
Dec 04 14:31:54.459 INFO [stderr]     Checking num-complex v0.1.37
Dec 04 14:31:54.459 INFO [stderr]     Checking termion v1.3.0
Dec 04 14:32:02.875 INFO [stderr]     Checking ndarray-rand v0.5.0
Dec 04 14:32:03.595 INFO [stderr]     Checking card-engine v0.1.0 (/source)
Dec 04 14:32:04.227 INFO [stderr] warning: doc comment not used by rustdoc
Dec 04 14:32:04.227 INFO [stderr]   --> src/germanwhist/phase.rs:43:13
Dec 04 14:32:04.227 INFO [stderr]    |
Dec 04 14:32:04.227 INFO [stderr] 43 |             /// this is the first card played
Dec 04 14:32:04.227 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 14:32:04.227 INFO [stderr]    |
Dec 04 14:32:04.227 INFO [stderr]    = note: #[warn(unused_doc_comments)] on by default
Dec 04 14:32:04.227 INFO [stderr] 
Dec 04 14:32:04.227 INFO [stderr] warning: doc comment not used by rustdoc
Dec 04 14:32:04.227 INFO [stderr]   --> src/germanwhist/phase.rs:90:17
Dec 04 14:32:04.227 INFO [stderr]    |
Dec 04 14:32:04.227 INFO [stderr] 90 |                 /// Give players their new cards
Dec 04 14:32:04.227 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 14:32:04.227 INFO [stderr] 
Dec 04 14:32:04.231 INFO [stderr] warning: doc comment not used by rustdoc
Dec 04 14:32:04.231 INFO [stderr]   --> src/learning/training.rs:48:9
Dec 04 14:32:04.231 INFO [stderr]    |
Dec 04 14:32:04.231 INFO [stderr] 48 |         /// epsilon-greedy state-choosing
Dec 04 14:32:04.231 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 14:32:04.231 INFO [stderr] 
Dec 04 14:32:04.624 INFO [stderr] warning: doc comment not used by rustdoc
Dec 04 14:32:04.624 INFO [stderr]   --> src/germanwhist/phase.rs:43:13
Dec 04 14:32:04.624 INFO [stderr]    |
Dec 04 14:32:04.624 INFO [stderr] 43 |             /// this is the first card played
Dec 04 14:32:04.624 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 14:32:04.624 INFO [stderr]    |
Dec 04 14:32:04.624 INFO [stderr]    = note: #[warn(unused_doc_comments)] on by default
Dec 04 14:32:04.624 INFO [stderr] 
Dec 04 14:32:04.624 INFO [stderr] warning: doc comment not used by rustdoc
Dec 04 14:32:04.624 INFO [stderr]   --> src/germanwhist/phase.rs:90:17
Dec 04 14:32:04.624 INFO [stderr]    |
Dec 04 14:32:04.624 INFO [stderr] 90 |                 /// Give players their new cards
Dec 04 14:32:04.624 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 14:32:04.624 INFO [stderr] 
Dec 04 14:32:04.639 INFO [stderr] warning: doc comment not used by rustdoc
Dec 04 14:32:04.639 INFO [stderr]   --> src/learning/training.rs:48:9
Dec 04 14:32:04.639 INFO [stderr]    |
Dec 04 14:32:04.639 INFO [stderr] 48 |         /// epsilon-greedy state-choosing
Dec 04 14:32:04.639 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 14:32:04.639 INFO [stderr] 
Dec 04 14:32:04.915 INFO [stderr] warning: variable does not need to be mutable
Dec 04 14:32:04.915 INFO [stderr]    --> src/germanwhist/player.rs:189:23
Dec 04 14:32:04.915 INFO [stderr]     |
Dec 04 14:32:04.915 INFO [stderr] 189 |     fn card_to_vector(mut x: &mut ArrayViewMut<f32, Ix1>, card: &Option<BasicCard>, suit_order: &[Suit]) {
Dec 04 14:32:04.915 INFO [stderr]     |                       ----^
Dec 04 14:32:04.915 INFO [stderr]     |                       |
Dec 04 14:32:04.915 INFO [stderr]     |                       help: remove this `mut`
Dec 04 14:32:04.915 INFO [stderr]     |
Dec 04 14:32:04.915 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 04 14:32:04.915 INFO [stderr] 
Dec 04 14:32:05.319 INFO [stderr] warning: method is never used: `dump`
Dec 04 14:32:05.319 INFO [stderr]    --> src/learning/neural_net.rs:283:5
Dec 04 14:32:05.319 INFO [stderr]     |
Dec 04 14:32:05.319 INFO [stderr] 283 |     fn dump(&self) {
Dec 04 14:32:05.319 INFO [stderr]     |     ^^^^^^^^^^^^^^
Dec 04 14:32:05.319 INFO [stderr]     |
Dec 04 14:32:05.319 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 04 14:32:05.319 INFO [stderr] 
Dec 04 14:32:05.907 INFO [stderr] warning: variable does not need to be mutable
Dec 04 14:32:05.907 INFO [stderr]    --> src/germanwhist/player.rs:189:23
Dec 04 14:32:05.907 INFO [stderr]     |
Dec 04 14:32:05.907 INFO [stderr] 189 |     fn card_to_vector(mut x: &mut ArrayViewMut<f32, Ix1>, card: &Option<BasicCard>, suit_order: &[Suit]) {
Dec 04 14:32:05.907 INFO [stderr]     |                       ----^
Dec 04 14:32:05.907 INFO [stderr]     |                       |
Dec 04 14:32:05.907 INFO [stderr]     |                       help: remove this `mut`
Dec 04 14:32:05.911 INFO [stderr]     |
Dec 04 14:32:05.911 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 04 14:32:05.911 INFO [stderr] 
Dec 04 14:32:06.748 INFO [stderr] warning: method is never used: `dump`
Dec 04 14:32:06.748 INFO [stderr]    --> src/learning/neural_net.rs:283:5
Dec 04 14:32:06.748 INFO [stderr]     |
Dec 04 14:32:06.748 INFO [stderr] 283 |     fn dump(&self) {
Dec 04 14:32:06.748 INFO [stderr]     |     ^^^^^^^^^^^^^^
Dec 04 14:32:06.771 INFO [stderr]     |
Dec 04 14:32:06.771 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 04 14:32:06.772 INFO [stderr] 
Dec 04 14:32:07.906 INFO [stderr] warning: doc comment not used by rustdoc
Dec 04 14:32:07.907 INFO [stderr]    --> src/bin/basic_player.rs:200:5
Dec 04 14:32:07.907 INFO [stderr]     |
Dec 04 14:32:07.907 INFO [stderr] 200 |     /// start the game
Dec 04 14:32:07.908 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^
Dec 04 14:32:07.908 INFO [stderr]     |
Dec 04 14:32:07.908 INFO [stderr]     = note: #[warn(unused_doc_comments)] on by default
Dec 04 14:32:07.908 INFO [stderr] 
Dec 04 14:32:07.947 INFO [stderr] warning: doc comment not used by rustdoc
Dec 04 14:32:07.947 INFO [stderr]    --> src/bin/basic_player.rs:200:5
Dec 04 14:32:07.948 INFO [stderr]     |
Dec 04 14:32:07.948 INFO [stderr] 200 |     /// start the game
Dec 04 14:32:07.948 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^
Dec 04 14:32:07.949 INFO [stderr]     |
Dec 04 14:32:07.949 INFO [stderr]     = note: #[warn(unused_doc_comments)] on by default
Dec 04 14:32:07.949 INFO [stderr] 
Dec 04 14:32:08.583 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 14:32:08.583 INFO [stderr]    --> src/bin/basic_player.rs:251:9
Dec 04 14:32:08.583 INFO [stderr]     |
Dec 04 14:32:08.583 INFO [stderr] 251 |         sl.train_on_episode(false);
Dec 04 14:32:08.583 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 14:32:08.599 INFO [stderr]     |
Dec 04 14:32:08.599 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 04 14:32:08.599 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 14:32:08.599 INFO [stderr] 
Dec 04 14:32:08.627 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 14:32:08.627 INFO [stderr]    --> src/bin/basic_player.rs:251:9
Dec 04 14:32:08.627 INFO [stderr]     |
Dec 04 14:32:08.627 INFO [stderr] 251 |         sl.train_on_episode(false);
Dec 04 14:32:08.627 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 14:32:08.627 INFO [stderr]     |
Dec 04 14:32:08.627 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 04 14:32:08.627 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 14:32:08.627 INFO [stderr] 
Dec 04 14:32:09.080 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.74s
Dec 04 14:32:09.086 INFO [stderr] su: No module specific data is present
Dec 04 14:32:10.320 INFO running `"docker" "inspect" "f5dceb2d949b6d6053f775fb91aeca0f580632d903ddb7c247fd23d8844afbfe"`
Dec 04 14:32:10.659 INFO running `"docker" "rm" "-f" "f5dceb2d949b6d6053f775fb91aeca0f580632d903ddb7c247fd23d8844afbfe"`
Dec 04 14:32:11.087 INFO [stdout] f5dceb2d949b6d6053f775fb91aeca0f580632d903ddb7c247fd23d8844afbfe