[INFO] updating cached repository KaHLK/copy_watcher
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/KaHLK/copy_watcher
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/KaHLK/copy_watcher" "work/ex/clippy-test-run/sources/stable/gh/KaHLK/copy_watcher"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/KaHLK/copy_watcher'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/KaHLK/copy_watcher" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/KaHLK/copy_watcher"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/KaHLK/copy_watcher'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 51f15024d2c5203c8b97acf97a1e905fbbee17a4
[INFO] sha for GitHub repo KaHLK/copy_watcher: 51f15024d2c5203c8b97acf97a1e905fbbee17a4
[INFO] validating manifest of KaHLK/copy_watcher 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 KaHLK/copy_watcher 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 KaHLK/copy_watcher
[INFO] finished frobbing KaHLK/copy_watcher
[INFO] frobbed toml for KaHLK/copy_watcher written to work/ex/clippy-test-run/sources/stable/gh/KaHLK/copy_watcher/Cargo.toml
[INFO] started frobbing KaHLK/copy_watcher
[INFO] finished frobbing KaHLK/copy_watcher
[INFO] frobbed toml for KaHLK/copy_watcher written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/KaHLK/copy_watcher/Cargo.toml
[INFO] crate KaHLK/copy_watcher 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 KaHLK/copy_watcher against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-0/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/KaHLK/copy_watcher:/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] e93db6a106fdbb5fbac4fcb76649f7e13f77ac1590c5b8db96fe2bdb3443f22b
[INFO] running `"docker" "start" "-a" "e93db6a106fdbb5fbac4fcb76649f7e13f77ac1590c5b8db96fe2bdb3443f22b"`
[INFO] [stderr]     Checking net2 v0.2.32
[INFO] [stderr]     Checking inotify v0.3.0
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking miow v0.1.5
[INFO] [stderr]     Checking mio v0.5.1
[INFO] [stderr]     Checking notify v4.0.3
[INFO] [stderr]     Checking copy_watcher v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant pattern matching, consider using `is_err()`
[INFO] [stderr]   --> src/lib.rs:62:12
[INFO] [stderr]    |
[INFO] [stderr] 62 |       if let Err(_) = fs::create_dir_all(to) {
[INFO] [stderr]    |  _____-      ^^^^^^
[INFO] [stderr] 63 | |         exit(1);
[INFO] [stderr] 64 | |     }
[INFO] [stderr]    | |_____- help: try this: `if fs::create_dir_all(to).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: this loop could be written as a `for` loop
[INFO] [stderr]   --> src/lib.rs:69:30
[INFO] [stderr]    |
[INFO] [stderr] 69 |         while let Some(el) = to_iter.next(){
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^ help: try: `for el in to_iter { .. }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::while_let_on_iterator)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#while_let_on_iterator
[INFO] [stderr] 
[INFO] [stderr] warning: this loop could be written as a `for` loop
[INFO] [stderr]   --> src/lib.rs:72:30
[INFO] [stderr]    |
[INFO] [stderr] 72 |         while let Some(el) = iter.next() {
[INFO] [stderr]    |                              ^^^^^^^^^^^ help: try: `for el in iter { .. }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#while_let_on_iterator
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_err()`
[INFO] [stderr]   --> src/lib.rs:62:12
[INFO] [stderr]    |
[INFO] [stderr] 62 |       if let Err(_) = fs::create_dir_all(to) {
[INFO] [stderr]    |  _____-      ^^^^^^
[INFO] [stderr] 63 | |         exit(1);
[INFO] [stderr] 64 | |     }
[INFO] [stderr]    | |_____- help: try this: `if fs::create_dir_all(to).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: this loop could be written as a `for` loop
[INFO] [stderr]   --> src/lib.rs:69:30
[INFO] [stderr]    |
[INFO] [stderr] 69 |         while let Some(el) = to_iter.next(){
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^ help: try: `for el in to_iter { .. }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::while_let_on_iterator)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#while_let_on_iterator
[INFO] [stderr] 
[INFO] [stderr] warning: this loop could be written as a `for` loop
[INFO] [stderr]   --> src/lib.rs:72:30
[INFO] [stderr]    |
[INFO] [stderr] 72 |         while let Some(el) = iter.next() {
[INFO] [stderr]    |                              ^^^^^^^^^^^ help: try: `for el in iter { .. }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#while_let_on_iterator
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.85s
[INFO] running `"docker" "inspect" "e93db6a106fdbb5fbac4fcb76649f7e13f77ac1590c5b8db96fe2bdb3443f22b"`
[INFO] running `"docker" "rm" "-f" "e93db6a106fdbb5fbac4fcb76649f7e13f77ac1590c5b8db96fe2bdb3443f22b"`
[INFO] [stdout] e93db6a106fdbb5fbac4fcb76649f7e13f77ac1590c5b8db96fe2bdb3443f22b