[INFO] updating cached repository nishtahir/identicon-generator
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/nishtahir/identicon-generator
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/nishtahir/identicon-generator" "work/ex/clippy-test-run/sources/stable/gh/nishtahir/identicon-generator"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/nishtahir/identicon-generator'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nishtahir/identicon-generator" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/nishtahir/identicon-generator"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/nishtahir/identicon-generator'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 959caf8831fbc2e2fb2dd79acd6fb735d79ec241
[INFO] sha for GitHub repo nishtahir/identicon-generator: 959caf8831fbc2e2fb2dd79acd6fb735d79ec241
[INFO] validating manifest of nishtahir/identicon-generator 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 nishtahir/identicon-generator 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 nishtahir/identicon-generator
[INFO] finished frobbing nishtahir/identicon-generator
[INFO] frobbed toml for nishtahir/identicon-generator written to work/ex/clippy-test-run/sources/stable/gh/nishtahir/identicon-generator/Cargo.toml
[INFO] started frobbing nishtahir/identicon-generator
[INFO] finished frobbing nishtahir/identicon-generator
[INFO] frobbed toml for nishtahir/identicon-generator written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/nishtahir/identicon-generator/Cargo.toml
[INFO] crate nishtahir/identicon-generator 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 nishtahir/identicon-generator 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/nishtahir/identicon-generator:/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] 94b59461a43f778edb10b455540897b7dc554932d5e0a969d97303f3d95ce8be
[INFO] running `"docker" "start" "-a" "94b59461a43f778edb10b455540897b7dc554932d5e0a969d97303f3d95ce8be"`
[INFO] [stderr]     Checking futures v0.1.15
[INFO] [stderr]    Compiling gcc v0.3.53
[INFO] [stderr]     Checking png v0.6.2
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking rayon-core v1.2.1
[INFO] [stderr]     Checking rayon v0.8.2
[INFO] [stderr]     Checking jpeg-decoder v0.1.13
[INFO] [stderr]     Checking image v0.12.4
[INFO] [stderr]     Checking image-generator v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: the loop variable `i` is used to index `tiles`
[INFO] [stderr]   --> src/main.rs:37:14
[INFO] [stderr]    |
[INFO] [stderr] 37 |     for i in 0..5 {
[INFO] [stderr]    |              ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]    |
[INFO] [stderr] 37 |     for (i, <item>) in tiles.iter_mut().enumerate().take(5) {
[INFO] [stderr]    |         ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: it looks like you're manually copying between slices
[INFO] [stderr]   --> src/main.rs:46:18
[INFO] [stderr]    |
[INFO] [stderr] 46 |         for j in 0..5 {            
[INFO] [stderr]    |                  ^^^^ help: try replacing the loop by: `tiles[4 - i][..5].clone_from_slice(&tiles[i][..5])`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::manual_memcpy)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_memcpy
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> src/main.rs:60:9
[INFO] [stderr]    |
[INFO] [stderr] 60 |     let ref mut fout = File::create(format!("{}.png", value)).unwrap();
[INFO] [stderr]    |     ----^^^^^^^^^^^^--------------------------------------------------- help: try: `let fout = &mut File::create(format!("{}.png", value)).unwrap();`
[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: the loop variable `i` is used to index `tiles`
[INFO] [stderr]   --> src/main.rs:37:14
[INFO] [stderr]    |
[INFO] [stderr] 37 |     for i in 0..5 {
[INFO] [stderr]    |              ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]    |
[INFO] [stderr] 37 |     for (i, <item>) in tiles.iter_mut().enumerate().take(5) {
[INFO] [stderr]    |         ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: it looks like you're manually copying between slices
[INFO] [stderr]   --> src/main.rs:46:18
[INFO] [stderr]    |
[INFO] [stderr] 46 |         for j in 0..5 {            
[INFO] [stderr]    |                  ^^^^ help: try replacing the loop by: `tiles[4 - i][..5].clone_from_slice(&tiles[i][..5])`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::manual_memcpy)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_memcpy
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> src/main.rs:60:9
[INFO] [stderr]    |
[INFO] [stderr] 60 |     let ref mut fout = File::create(format!("{}.png", value)).unwrap();
[INFO] [stderr]    |     ----^^^^^^^^^^^^--------------------------------------------------- help: try: `let fout = &mut File::create(format!("{}.png", value)).unwrap();`
[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]     Finished dev [unoptimized + debuginfo] target(s) in 22.37s
[INFO] running `"docker" "inspect" "94b59461a43f778edb10b455540897b7dc554932d5e0a969d97303f3d95ce8be"`
[INFO] running `"docker" "rm" "-f" "94b59461a43f778edb10b455540897b7dc554932d5e0a969d97303f3d95ce8be"`
[INFO] [stdout] 94b59461a43f778edb10b455540897b7dc554932d5e0a969d97303f3d95ce8be