[INFO] updating cached repository masonium/card-engine [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/masonium/card-engine [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/masonium/card-engine" "work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/gh/masonium/card-engine"` [INFO] [stderr] Cloning into 'work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/gh/masonium/card-engine'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/masonium/card-engine" "work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/gh/masonium/card-engine"` [INFO] [stderr] Cloning into 'work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/gh/masonium/card-engine'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 82041c99c5a84b4425e2c3ffb656a591da7e0775 [INFO] sha for GitHub repo masonium/card-engine: 82041c99c5a84b4425e2c3ffb656a591da7e0775 [INFO] validating manifest of masonium/card-engine on toolchain master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of masonium/card-engine on toolchain try#bad365140e1e8233b42b21af70a407f14ce5fec5 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing masonium/card-engine [INFO] finished frobbing masonium/card-engine [INFO] frobbed toml for masonium/card-engine written to work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/gh/masonium/card-engine/Cargo.toml [INFO] started frobbing masonium/card-engine [INFO] finished frobbing masonium/card-engine [INFO] frobbed toml for masonium/card-engine written to work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/gh/masonium/card-engine/Cargo.toml [INFO] crate masonium/card-engine has a lockfile. skipping [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking masonium/card-engine against try#bad365140e1e8233b42b21af70a407f14ce5fec5 for pr-56896 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56896/worker-1/try#bad365140e1e8233b42b21af70a407f14ce5fec5:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/gh/masonium/card-engine:/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" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 51110463d2d489fb8bad95e085d2cb7a324b50c9ca56b02f16407559a573ca94 [INFO] running `"docker" "start" "-a" "51110463d2d489fb8bad95e085d2cb7a324b50c9ca56b02f16407559a573ca94"` [INFO] [stderr] Compiling matrixmultiply v0.1.13 [INFO] [stderr] Compiling ndarray v0.9.1 [INFO] [stderr] Checking num-complex v0.1.37 [INFO] [stderr] Checking itertools v0.6.0 [INFO] [stderr] Checking termion v1.3.0 [INFO] [stderr] Checking clap v2.24.2 [INFO] [stderr] Checking ndarray-rand v0.5.0 [INFO] [stderr] Checking card-engine v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: doc comment not used by rustdoc [INFO] [stderr] --> src/germanwhist/phase.rs:43:13 [INFO] [stderr] | [INFO] [stderr] 43 | /// this is the first card played [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_doc_comments)] on by default [INFO] [stderr] [INFO] [stderr] warning: doc comment not used by rustdoc [INFO] [stderr] --> src/germanwhist/phase.rs:90:17 [INFO] [stderr] | [INFO] [stderr] 90 | /// Give players their new cards [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: doc comment not used by rustdoc [INFO] [stderr] --> src/learning/training.rs:48:9 [INFO] [stderr] | [INFO] [stderr] 48 | /// epsilon-greedy state-choosing [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: doc comment not used by rustdoc [INFO] [stderr] --> src/germanwhist/phase.rs:43:13 [INFO] [stderr] | [INFO] [stderr] 43 | /// this is the first card played [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_doc_comments)] on by default [INFO] [stderr] [INFO] [stderr] warning: doc comment not used by rustdoc [INFO] [stderr] --> src/germanwhist/phase.rs:90:17 [INFO] [stderr] | [INFO] [stderr] 90 | /// Give players their new cards [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: doc comment not used by rustdoc [INFO] [stderr] --> src/learning/training.rs:48:9 [INFO] [stderr] | [INFO] [stderr] 48 | /// epsilon-greedy state-choosing [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/germanwhist/player.rs:189:23 [INFO] [stderr] | [INFO] [stderr] 189 | fn card_to_vector(mut x: &mut ArrayViewMut, card: &Option, suit_order: &[Suit]) { [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/germanwhist/player.rs:189:23 [INFO] [stderr] | [INFO] [stderr] 189 | fn card_to_vector(mut x: &mut ArrayViewMut, card: &Option, suit_order: &[Suit]) { [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `dump` [INFO] [stderr] --> src/learning/neural_net.rs:283:5 [INFO] [stderr] | [INFO] [stderr] 283 | fn dump(&self) { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `dump` [INFO] [stderr] --> src/learning/neural_net.rs:283:5 [INFO] [stderr] | [INFO] [stderr] 283 | fn dump(&self) { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: doc comment not used by rustdoc [INFO] [stderr] --> src/bin/basic_player.rs:200:5 [INFO] [stderr] | [INFO] [stderr] 200 | /// start the game [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_doc_comments)] on by default [INFO] [stderr] [INFO] [stderr] warning: doc comment not used by rustdoc [INFO] [stderr] --> src/bin/basic_player.rs:200:5 [INFO] [stderr] | [INFO] [stderr] 200 | /// start the game [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_doc_comments)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/bin/basic_player.rs:251:9 [INFO] [stderr] | [INFO] [stderr] 251 | sl.train_on_episode(false); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/bin/basic_player.rs:251:9 [INFO] [stderr] | [INFO] [stderr] 251 | sl.train_on_episode(false); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 14.26s [INFO] running `"docker" "inspect" "51110463d2d489fb8bad95e085d2cb7a324b50c9ca56b02f16407559a573ca94"` [INFO] running `"docker" "rm" "-f" "51110463d2d489fb8bad95e085d2cb7a324b50c9ca56b02f16407559a573ca94"` [INFO] [stdout] 51110463d2d489fb8bad95e085d2cb7a324b50c9ca56b02f16407559a573ca94