[INFO] updating cached repository Yatekii/font-experiments
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Yatekii/font-experiments
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Yatekii/font-experiments" "work/ex/clippy-test-run/sources/stable/gh/Yatekii/font-experiments"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/Yatekii/font-experiments'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Yatekii/font-experiments" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Yatekii/font-experiments"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Yatekii/font-experiments'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 29529c3b24823c622107dbd3c486370244d5e589
[INFO] sha for GitHub repo Yatekii/font-experiments: 29529c3b24823c622107dbd3c486370244d5e589
[INFO] validating manifest of Yatekii/font-experiments 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 Yatekii/font-experiments 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 Yatekii/font-experiments
[INFO] finished frobbing Yatekii/font-experiments
[INFO] frobbed toml for Yatekii/font-experiments written to work/ex/clippy-test-run/sources/stable/gh/Yatekii/font-experiments/Cargo.toml
[INFO] started frobbing Yatekii/font-experiments
[INFO] finished frobbing Yatekii/font-experiments
[INFO] frobbed toml for Yatekii/font-experiments written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Yatekii/font-experiments/Cargo.toml
[INFO] crate Yatekii/font-experiments 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 Yatekii/font-experiments against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-7/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/Yatekii/font-experiments:/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] aa4fb2ac6cc6aa413e5c73d86f94a5a9427783ac250605706c4a1937bf19254e
[INFO] running `"docker" "start" "-a" "aa4fb2ac6cc6aa413e5c73d86f94a5a9427783ac250605706c4a1937bf19254e"`
[INFO] [stderr]     Checking rusttype v0.2.3
[INFO] [stderr]     Checking rayon v0.7.1
[INFO] [stderr]     Checking nalgebra v0.11.2
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stderr]     Checking quickcheck v0.2.27
[INFO] [stderr]     Checking imageproc v0.13.0
[INFO] [stderr]     Checking font-experiments v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `dx`
[INFO] [stderr]   --> src/main.rs:55:29
[INFO] [stderr]    |
[INFO] [stderr] 55 |                         let dx = x;
[INFO] [stderr]    |                             ^^ help: consider using `_dx` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dy`
[INFO] [stderr]   --> src/main.rs:56:29
[INFO] [stderr]    |
[INFO] [stderr] 56 |                         let dy = y;
[INFO] [stderr]    |                             ^^ help: consider using `_dy` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dx`
[INFO] [stderr]   --> src/main.rs:55:29
[INFO] [stderr]    |
[INFO] [stderr] 55 |                         let dx = x;
[INFO] [stderr]    |                             ^^ help: consider using `_dx` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dy`
[INFO] [stderr]   --> src/main.rs:56:29
[INFO] [stderr]    |
[INFO] [stderr] 56 |                         let dy = y;
[INFO] [stderr]    |                             ^^ help: consider using `_dy` instead
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `length`
[INFO] [stderr]   --> src/main.rs:70:1
[INFO] [stderr]    |
[INFO] [stderr] 70 | fn length(x: u32, y: u32) -> u32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]   --> src/main.rs:79:5
[INFO] [stderr]    |
[INFO] [stderr] 79 |     let _ = raster_glyphs(height, &font);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::let_unit_value)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `length`
[INFO] [stderr]   --> src/main.rs:70:1
[INFO] [stderr]    |
[INFO] [stderr] 70 | fn length(x: u32, y: u32) -> u32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]   --> src/main.rs:79:5
[INFO] [stderr]    |
[INFO] [stderr] 79 |     let _ = raster_glyphs(height, &font);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::let_unit_value)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.66s
[INFO] running `"docker" "inspect" "aa4fb2ac6cc6aa413e5c73d86f94a5a9427783ac250605706c4a1937bf19254e"`
[INFO] running `"docker" "rm" "-f" "aa4fb2ac6cc6aa413e5c73d86f94a5a9427783ac250605706c4a1937bf19254e"`
[INFO] [stdout] aa4fb2ac6cc6aa413e5c73d86f94a5a9427783ac250605706c4a1937bf19254e