[INFO] crate patience-diff 0.1.0 is already in cache
[INFO] extracting crate patience-diff 0.1.0 into work/ex/clippy-test-run/sources/stable/reg/patience-diff/0.1.0
[INFO] extracting crate patience-diff 0.1.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/patience-diff/0.1.0
[INFO] validating manifest of patience-diff-0.1.0 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 patience-diff-0.1.0 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 patience-diff-0.1.0
[INFO] finished frobbing patience-diff-0.1.0
[INFO] frobbed toml for patience-diff-0.1.0 written to work/ex/clippy-test-run/sources/stable/reg/patience-diff/0.1.0/Cargo.toml
[INFO] started frobbing patience-diff-0.1.0
[INFO] finished frobbing patience-diff-0.1.0
[INFO] frobbed toml for patience-diff-0.1.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/patience-diff/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 patience-diff-0.1.0 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-5/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/reg/patience-diff/0.1.0:/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] 52eb1c0306c328914f8951705d1e78d67f060e0cfb0b4beef2dc2b5ae6ea985b
[INFO] running `"docker" "start" "-a" "52eb1c0306c328914f8951705d1e78d67f060e0cfb0b4beef2dc2b5ae6ea985b"`
[INFO] [stderr]     Checking lcs v0.2.0
[INFO] [stderr]     Checking patience-diff v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/lib.rs:135:8
[INFO] [stderr]     |
[INFO] [stderr] 135 |     if a.len() == 0 && b.len() == 0 {
[INFO] [stderr]     |        ^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `a.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 zero
[INFO] [stderr]    --> src/lib.rs:135:24
[INFO] [stderr]     |
[INFO] [stderr] 135 |     if a.len() == 0 && b.len() == 0 {
[INFO] [stderr]     |                        ^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `b.is_empty()`
[INFO] [stderr]     |
[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 zero
[INFO] [stderr]    --> src/lib.rs:139:8
[INFO] [stderr]     |
[INFO] [stderr] 139 |     if a.len() == 0 {
[INFO] [stderr]     |        ^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `a.is_empty()`
[INFO] [stderr]     |
[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 zero
[INFO] [stderr]    --> src/lib.rs:143:8
[INFO] [stderr]     |
[INFO] [stderr] 143 |     if b.len() == 0 {
[INFO] [stderr]     |        ^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `b.is_empty()`
[INFO] [stderr]     |
[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 zero
[INFO] [stderr]    --> src/lib.rs:135:8
[INFO] [stderr]     |
[INFO] [stderr] 135 |     if a.len() == 0 && b.len() == 0 {
[INFO] [stderr]     |        ^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `a.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 zero
[INFO] [stderr]    --> src/lib.rs:135:24
[INFO] [stderr]     |
[INFO] [stderr] 135 |     if a.len() == 0 && b.len() == 0 {
[INFO] [stderr]     |                        ^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `b.is_empty()`
[INFO] [stderr]     |
[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 zero
[INFO] [stderr]    --> src/lib.rs:139:8
[INFO] [stderr]     |
[INFO] [stderr] 139 |     if a.len() == 0 {
[INFO] [stderr]     |        ^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `a.is_empty()`
[INFO] [stderr]     |
[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 zero
[INFO] [stderr]    --> src/lib.rs:143:8
[INFO] [stderr]     |
[INFO] [stderr] 143 |     if b.len() == 0 {
[INFO] [stderr]     |        ^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `b.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `"docker" "inspect" "52eb1c0306c328914f8951705d1e78d67f060e0cfb0b4beef2dc2b5ae6ea985b"`
[INFO] running `"docker" "rm" "-f" "52eb1c0306c328914f8951705d1e78d67f060e0cfb0b4beef2dc2b5ae6ea985b"`
[INFO] [stdout] 52eb1c0306c328914f8951705d1e78d67f060e0cfb0b4beef2dc2b5ae6ea985b