[INFO] updating cached repository focusaurus/slugger
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/focusaurus/slugger
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/focusaurus/slugger" "work/ex/clippy-test-run/sources/stable/gh/focusaurus/slugger"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/focusaurus/slugger'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/focusaurus/slugger" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/focusaurus/slugger"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/focusaurus/slugger'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 64af05be5494cd4a03ef6f42198cc6409fd921e3
[INFO] sha for GitHub repo focusaurus/slugger: 64af05be5494cd4a03ef6f42198cc6409fd921e3
[INFO] validating manifest of focusaurus/slugger 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 focusaurus/slugger 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 focusaurus/slugger
[INFO] finished frobbing focusaurus/slugger
[INFO] frobbed toml for focusaurus/slugger written to work/ex/clippy-test-run/sources/stable/gh/focusaurus/slugger/Cargo.toml
[INFO] started frobbing focusaurus/slugger
[INFO] finished frobbing focusaurus/slugger
[INFO] frobbed toml for focusaurus/slugger written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/focusaurus/slugger/Cargo.toml
[INFO] crate focusaurus/slugger 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 focusaurus/slugger against stable+rustflags=-Dclippy::into_iter_on_array for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-6/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/focusaurus/slugger:/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 -Dclippy::into_iter_on_array" "-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] a7ca2f48835cee34d0762f01f1d2833a3486bd7fec54d8adc448be50ea2f65df
[INFO] running `"docker" "start" "-a" "a7ca2f48835cee34d0762f01f1d2833a3486bd7fec54d8adc448be50ea2f65df"`
[INFO] [stderr]     Checking unidecode v0.3.0
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking parking_lot v0.4.8
[INFO] [stderr]     Checking rsfs v0.4.1
[INFO] [stderr]     Checking slugger v1.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea
[INFO] [stderr]    --> src/lib.rs:175:13
[INFO] [stderr]     |
[INFO] [stderr] 175 |             Err(_) => {
[INFO] [stderr]     |             ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::match_wild_err_arm)] on by default
[INFO] [stderr]     = note: to remove this warning, match each error separately or use unreachable macro
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_err()`
[INFO] [stderr]    --> src/lib.rs:213:16
[INFO] [stderr]     |
[INFO] [stderr] 213 |           if let Err(_) = rename(&mut fs, &slug) {
[INFO] [stderr]     |  _________-      ^^^^^^
[INFO] [stderr] 214 | |             panic!("should not error if existing file is already a slug");
[INFO] [stderr] 215 | |         }
[INFO] [stderr]     | |_________- help: try this: `if rename(&mut fs, &slug).is_err()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_pattern_matching)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to one
[INFO] [stderr]   --> src/main.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 |     if args.len() < 1 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `args.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to one
[INFO] [stderr]   --> src/main.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 |     if args.len() < 1 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `args.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `vec!`
[INFO] [stderr]   --> src/main.rs:40:37
[INFO] [stderr]    |
[INFO] [stderr] 40 |         match slugger_main(&mut fs, &vec![]) {
[INFO] [stderr]    |                                     ^^^^^^^ help: you can use a slice directly: `&[]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::useless_vec)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_vec
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.84s
[INFO] running `"docker" "inspect" "a7ca2f48835cee34d0762f01f1d2833a3486bd7fec54d8adc448be50ea2f65df"`
[INFO] running `"docker" "rm" "-f" "a7ca2f48835cee34d0762f01f1d2833a3486bd7fec54d8adc448be50ea2f65df"`
[INFO] [stdout] a7ca2f48835cee34d0762f01f1d2833a3486bd7fec54d8adc448be50ea2f65df