[INFO] updating cached repository eott/mandelrust [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/eott/mandelrust [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/eott/mandelrust" "work/ex/clippy-test-run/sources/stable/gh/eott/mandelrust"` [INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/eott/mandelrust'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/eott/mandelrust" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/eott/mandelrust"` [INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/eott/mandelrust'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 5b0fecd477d01e0ff98ab24c58d5acfcd8627131 [INFO] sha for GitHub repo eott/mandelrust: 5b0fecd477d01e0ff98ab24c58d5acfcd8627131 [INFO] validating manifest of eott/mandelrust 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 eott/mandelrust 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 eott/mandelrust [INFO] finished frobbing eott/mandelrust [INFO] frobbed toml for eott/mandelrust written to work/ex/clippy-test-run/sources/stable/gh/eott/mandelrust/Cargo.toml [INFO] started frobbing eott/mandelrust [INFO] finished frobbing eott/mandelrust [INFO] frobbed toml for eott/mandelrust written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/eott/mandelrust/Cargo.toml [INFO] crate eott/mandelrust 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 eott/mandelrust against stable for clippy-test-run [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-4/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/eott/mandelrust:/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] 9949153d860af435e336fb1ebb8883346478c90549ec423b98ed46c403fc18f4 [INFO] running `"docker" "start" "-a" "9949153d860af435e336fb1ebb8883346478c90549ec423b98ed46c403fc18f4"` [INFO] [stderr] Checking mandelrust v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change [INFO] [stderr] --> src/main.rs:70:52 [INFO] [stderr] | [INFO] [stderr] 70 | let step_img = (DIMENSION[1] - DIMENSION[0]) / HEIGHT as f64; [INFO] [stderr] | ^^^^^^^^^^^^^ help: try: `f64::from(HEIGHT)` [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 i32 to f64 may become silently lossy if types change [INFO] [stderr] --> src/main.rs:71:53 [INFO] [stderr] | [INFO] [stderr] 71 | let step_real = (DIMENSION[3] - DIMENSION[2]) / WIDTH as f64; [INFO] [stderr] | ^^^^^^^^^^^^ help: try: `f64::from(WIDTH)` [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: casting i32 to f64 may become silently lossy if types change [INFO] [stderr] --> src/main.rs:80:43 [INFO] [stderr] | [INFO] [stderr] 80 | DIMENSION[0] + step_img * y as f64, [INFO] [stderr] | ^^^^^^^^ help: try: `f64::from(y)` [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: casting i32 to f64 may become silently lossy if types change [INFO] [stderr] --> src/main.rs:81:44 [INFO] [stderr] | [INFO] [stderr] 81 | DIMENSION[2] + step_real * x as f64 [INFO] [stderr] | ^^^^^^^^ help: try: `f64::from(x)` [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: casting i32 to f64 may become silently lossy if types change [INFO] [stderr] --> src/main.rs:70:52 [INFO] [stderr] | [INFO] [stderr] 70 | let step_img = (DIMENSION[1] - DIMENSION[0]) / HEIGHT as f64; [INFO] [stderr] | ^^^^^^^^^^^^^ help: try: `f64::from(HEIGHT)` [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 i32 to f64 may become silently lossy if types change [INFO] [stderr] --> src/main.rs:71:53 [INFO] [stderr] | [INFO] [stderr] 71 | let step_real = (DIMENSION[3] - DIMENSION[2]) / WIDTH as f64; [INFO] [stderr] | ^^^^^^^^^^^^ help: try: `f64::from(WIDTH)` [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: casting i32 to f64 may become silently lossy if types change [INFO] [stderr] --> src/main.rs:80:43 [INFO] [stderr] | [INFO] [stderr] 80 | DIMENSION[0] + step_img * y as f64, [INFO] [stderr] | ^^^^^^^^ help: try: `f64::from(y)` [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: casting i32 to f64 may become silently lossy if types change [INFO] [stderr] --> src/main.rs:81:44 [INFO] [stderr] | [INFO] [stderr] 81 | DIMENSION[2] + step_real * x as f64 [INFO] [stderr] | ^^^^^^^^ help: try: `f64::from(x)` [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 1.17s [INFO] running `"docker" "inspect" "9949153d860af435e336fb1ebb8883346478c90549ec423b98ed46c403fc18f4"` [INFO] running `"docker" "rm" "-f" "9949153d860af435e336fb1ebb8883346478c90549ec423b98ed46c403fc18f4"` [INFO] [stdout] 9949153d860af435e336fb1ebb8883346478c90549ec423b98ed46c403fc18f4