[INFO] updating cached repository wrongway4you/sierpinski-triangle-rs [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/wrongway4you/sierpinski-triangle-rs [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/wrongway4you/sierpinski-triangle-rs" "work/ex/clippy-test-run/sources/stable/gh/wrongway4you/sierpinski-triangle-rs"` [INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/wrongway4you/sierpinski-triangle-rs'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/wrongway4you/sierpinski-triangle-rs" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/wrongway4you/sierpinski-triangle-rs"` [INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/wrongway4you/sierpinski-triangle-rs'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 61d5a631e7a10cb5e0f870cb778cd498be08f6a3 [INFO] sha for GitHub repo wrongway4you/sierpinski-triangle-rs: 61d5a631e7a10cb5e0f870cb778cd498be08f6a3 [INFO] validating manifest of wrongway4you/sierpinski-triangle-rs 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 wrongway4you/sierpinski-triangle-rs 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 wrongway4you/sierpinski-triangle-rs [INFO] finished frobbing wrongway4you/sierpinski-triangle-rs [INFO] frobbed toml for wrongway4you/sierpinski-triangle-rs written to work/ex/clippy-test-run/sources/stable/gh/wrongway4you/sierpinski-triangle-rs/Cargo.toml [INFO] started frobbing wrongway4you/sierpinski-triangle-rs [INFO] finished frobbing wrongway4you/sierpinski-triangle-rs [INFO] frobbed toml for wrongway4you/sierpinski-triangle-rs written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/wrongway4you/sierpinski-triangle-rs/Cargo.toml [INFO] crate wrongway4you/sierpinski-triangle-rs 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 wrongway4you/sierpinski-triangle-rs against stable for clippy-test-run [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-5/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/wrongway4you/sierpinski-triangle-rs:/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] 2039260f4e288927b7d580b0a0b1287c6c4af90c9421debcfbd3486b252f8487 [INFO] running `"docker" "start" "-a" "2039260f4e288927b7d580b0a0b1287c6c4af90c9421debcfbd3486b252f8487"` [INFO] [stderr] Checking libc v0.2.22 [INFO] [stderr] Compiling rayon-core v1.0.0 [INFO] [stderr] Checking deque v0.3.2 [INFO] [stderr] Checking num-traits v0.1.37 [INFO] [stderr] Checking color_quant v1.0.0 [INFO] [stderr] Checking inflate v0.2.0 [INFO] [stderr] Checking unicode-segmentation v1.1.0 [INFO] [stderr] Checking scoped_threadpool v0.1.7 [INFO] [stderr] Checking deflate v0.7.11 [INFO] [stderr] Checking gif v0.9.1 [INFO] [stderr] Checking rand v0.3.15 [INFO] [stderr] Checking num_cpus v1.4.0 [INFO] [stderr] Checking term_size v0.3.0 [INFO] [stderr] Checking atty v0.2.2 [INFO] [stderr] Checking textwrap v0.6.0 [INFO] [stderr] Checking num-integer v0.1.34 [INFO] [stderr] Checking enum_primitive v0.1.1 [INFO] [stderr] Checking clap v2.25.0 [INFO] [stderr] Checking num-iter v0.1.33 [INFO] [stderr] Checking num-rational v0.1.36 [INFO] [stderr] Checking rayon v0.7.0 [INFO] [stderr] Checking png v0.7.0 [INFO] [stderr] Checking jpeg-decoder v0.1.12 [INFO] [stderr] Checking image v0.13.0 [INFO] [stderr] Checking sierpinski-triangle v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration) [INFO] [stderr] --> src/main.rs:22:1 [INFO] [stderr] | [INFO] [stderr] 22 | / fn generate_sierpinski_tri<'a>(filename: &'a str, [INFO] [stderr] 23 | | img_width: u32, [INFO] [stderr] 24 | | img_height: u32, [INFO] [stderr] 25 | | n: u32, [INFO] [stderr] ... | [INFO] [stderr] 67 | | let _ = ImageRgba8(img_buf).save(&mut file, ImageFormat::PNG).unwrap(); [INFO] [stderr] 68 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::needless_lifetimes)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes [INFO] [stderr] [INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =` [INFO] [stderr] --> src/main.rs:67:3 [INFO] [stderr] | [INFO] [stderr] 67 | let _ = ImageRgba8(img_buf).save(&mut file, ImageFormat::PNG).unwrap(); [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: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration) [INFO] [stderr] --> src/main.rs:22:1 [INFO] [stderr] | [INFO] [stderr] 22 | / fn generate_sierpinski_tri<'a>(filename: &'a str, [INFO] [stderr] 23 | | img_width: u32, [INFO] [stderr] 24 | | img_height: u32, [INFO] [stderr] 25 | | n: u32, [INFO] [stderr] ... | [INFO] [stderr] 67 | | let _ = ImageRgba8(img_buf).save(&mut file, ImageFormat::PNG).unwrap(); [INFO] [stderr] 68 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::needless_lifetimes)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes [INFO] [stderr] [INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =` [INFO] [stderr] --> src/main.rs:67:3 [INFO] [stderr] | [INFO] [stderr] 67 | let _ = ImageRgba8(img_buf).save(&mut file, ImageFormat::PNG).unwrap(); [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 18.36s [INFO] running `"docker" "inspect" "2039260f4e288927b7d580b0a0b1287c6c4af90c9421debcfbd3486b252f8487"` [INFO] running `"docker" "rm" "-f" "2039260f4e288927b7d580b0a0b1287c6c4af90c9421debcfbd3486b252f8487"` [INFO] [stdout] 2039260f4e288927b7d580b0a0b1287c6c4af90c9421debcfbd3486b252f8487