[INFO] updating cached repository Stuv7CB/guessing-game
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Stuv7CB/guessing-game
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Stuv7CB/guessing-game" "work/ex/clippy-test-run/sources/stable/gh/Stuv7CB/guessing-game"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/Stuv7CB/guessing-game'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Stuv7CB/guessing-game" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Stuv7CB/guessing-game"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Stuv7CB/guessing-game'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 79e7e7cc602f5ecb3224056c5dfd7f7225971db2
[INFO] sha for GitHub repo Stuv7CB/guessing-game: 79e7e7cc602f5ecb3224056c5dfd7f7225971db2
[INFO] validating manifest of Stuv7CB/guessing-game on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Stuv7CB/guessing-game on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Stuv7CB/guessing-game
[INFO] finished frobbing Stuv7CB/guessing-game
[INFO] frobbed toml for Stuv7CB/guessing-game written to work/ex/clippy-test-run/sources/stable/gh/Stuv7CB/guessing-game/Cargo.toml
[INFO] started frobbing Stuv7CB/guessing-game
[INFO] finished frobbing Stuv7CB/guessing-game
[INFO] frobbed toml for Stuv7CB/guessing-game written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Stuv7CB/guessing-game/Cargo.toml
[INFO] crate Stuv7CB/guessing-game has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting Stuv7CB/guessing-game against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-3/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/Stuv7CB/guessing-game:/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" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 0c3dacacb7124111ce22e38520c83a5f6d4c25bde012d229d2d300bef91628a8
[INFO] running `"docker" "start" "-a" "0c3dacacb7124111ce22e38520c83a5f6d4c25bde012d229d2d300bef91628a8"`
[INFO] [stderr]     Checking num-bigint v0.1.43
[INFO] [stderr]     Checking backtrace-sys v0.1.16
[INFO] [stderr]     Checking rusttype v0.4.1
[INFO] [stderr]     Checking backtrace v0.3.5
[INFO] [stderr]     Checking glium v0.20.0
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking conrod v0.58.0
[INFO] [stderr]     Checking guessing-game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]    --> src/app.rs:105:5
[INFO] [stderr]     |
[INFO] [stderr] 105 |     font_path
[INFO] [stderr]     |     ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::let_and_return)] on by default
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]    --> src/app.rs:103:21
[INFO] [stderr]     |
[INFO] [stderr] 103 |     let font_path = fonts.join(font);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]    --> src/app.rs:105:5
[INFO] [stderr]     |
[INFO] [stderr] 105 |     font_path
[INFO] [stderr]     |     ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::let_and_return)] on by default
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]    --> src/app.rs:103:21
[INFO] [stderr]     |
[INFO] [stderr] 103 |     let font_path = fonts.join(font);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` directly on a function argument is ignored. Consider using a reference type instead.
[INFO] [stderr]  --> src/logic.rs:9:15
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn update(ref mut ui: conrod::UiCell, ids: &Ids, game: &mut GameData, data: &mut AppData) {
[INFO] [stderr]   |               ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::toplevel_ref_arg)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:104:42
[INFO] [stderr]     |
[INFO] [stderr] 104 |     let mut ui = conrod::UiBuilder::new([data.width as f64, data.height as f64]).build();
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^ help: try: `f64::from(data.width)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:104:61
[INFO] [stderr]     |
[INFO] [stderr] 104 |     let mut ui = conrod::UiBuilder::new([data.width as f64, data.height as f64]).build();
[INFO] [stderr]     |                                                             ^^^^^^^^^^^^^^^^^^ help: try: `f64::from(data.height)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` directly on a function argument is ignored. Consider using a reference type instead.
[INFO] [stderr]  --> src/logic.rs:9:15
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn update(ref mut ui: conrod::UiCell, ids: &Ids, game: &mut GameData, data: &mut AppData) {
[INFO] [stderr]   |               ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::toplevel_ref_arg)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:104:42
[INFO] [stderr]     |
[INFO] [stderr] 104 |     let mut ui = conrod::UiBuilder::new([data.width as f64, data.height as f64]).build();
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^ help: try: `f64::from(data.width)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:104:61
[INFO] [stderr]     |
[INFO] [stderr] 104 |     let mut ui = conrod::UiBuilder::new([data.width as f64, data.height as f64]).build();
[INFO] [stderr]     |                                                             ^^^^^^^^^^^^^^^^^^ help: try: `f64::from(data.height)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.16s
[INFO] running `"docker" "inspect" "0c3dacacb7124111ce22e38520c83a5f6d4c25bde012d229d2d300bef91628a8"`
[INFO] running `"docker" "rm" "-f" "0c3dacacb7124111ce22e38520c83a5f6d4c25bde012d229d2d300bef91628a8"`
[INFO] [stdout] 0c3dacacb7124111ce22e38520c83a5f6d4c25bde012d229d2d300bef91628a8