[INFO] crate text-diff 0.4.0 is already in cache
[INFO] extracting crate text-diff 0.4.0 into work/ex/clippy-test-run/sources/stable/reg/text-diff/0.4.0
[INFO] extracting crate text-diff 0.4.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/text-diff/0.4.0
[INFO] validating manifest of text-diff-0.4.0 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 text-diff-0.4.0 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 text-diff-0.4.0
[INFO] finished frobbing text-diff-0.4.0
[INFO] frobbed toml for text-diff-0.4.0 written to work/ex/clippy-test-run/sources/stable/reg/text-diff/0.4.0/Cargo.toml
[INFO] started frobbing text-diff-0.4.0
[INFO] finished frobbing text-diff-0.4.0
[INFO] frobbed toml for text-diff-0.4.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/text-diff/0.4.0/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 text-diff-0.4.0 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/reg/text-diff/0.4.0:/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" "-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] 44fe9295a75d6d9caa0028b73ae6cd46a57d9a55042b480b891d1365da6170cd
[INFO] running `"docker" "start" "-a" "44fe9295a75d6d9caa0028b73ae6cd46a57d9a55042b480b891d1365da6170cd"`
[INFO] [stderr]     Checking text-diff v0.4.0 (/opt/crater/workdir)
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]   --> src/lcs.rs:37:21
[INFO] [stderr]    |
[INFO] [stderr] 37 |             let mut x;
[INFO] [stderr]    |                     ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::many_single_char_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: 6th binding whose name is just one char
[INFO] [stderr]   --> src/lcs.rs:46:21
[INFO] [stderr]    |
[INFO] [stderr] 46 |             let mut y = x - k;
[INFO] [stderr]    |                     ^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]   --> src/lcs.rs:37:21
[INFO] [stderr]    |
[INFO] [stderr] 37 |             let mut x;
[INFO] [stderr]    |                     ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::many_single_char_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: 6th binding whose name is just one char
[INFO] [stderr]   --> src/lcs.rs:46:21
[INFO] [stderr]    |
[INFO] [stderr] 46 |             let mut y = x - k;
[INFO] [stderr]    |                     ^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/lcs.rs:49:20
[INFO] [stderr]    |
[INFO] [stderr] 49 |                 if snake.len() > 0 {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!snake.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/lcs.rs:68:24
[INFO] [stderr]    |
[INFO] [stderr] 68 |                     if common.len() > 0 {
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!common.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/lcs.rs:82:16
[INFO] [stderr]    |
[INFO] [stderr] 82 |             if common.len() > 0 {
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!common.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/merge.rs:17:16
[INFO] [stderr]    |
[INFO] [stderr] 17 |             if rem.len() > 0 {
[INFO] [stderr]    |                ^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!rem.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/merge.rs:26:16
[INFO] [stderr]    |
[INFO] [stderr] 26 |             if add.len() > 0 {
[INFO] [stderr]    |                ^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!add.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/merge.rs:33:12
[INFO] [stderr]    |
[INFO] [stderr] 33 |         if add.len() > 0 || rem.len() > 0 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!add.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/merge.rs:33:29
[INFO] [stderr]    |
[INFO] [stderr] 33 |         if add.len() > 0 || rem.len() > 0 {
[INFO] [stderr]    |                             ^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!rem.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/merge.rs:38:12
[INFO] [stderr]    |
[INFO] [stderr] 38 |         if rem.len() > 0 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!rem.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/merge.rs:42:12
[INFO] [stderr]    |
[INFO] [stderr] 42 |         if add.len() > 0 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!add.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/merge.rs:46:12
[INFO] [stderr]    |
[INFO] [stderr] 46 |         if same.len() > 0 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!same.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/merge.rs:51:8
[INFO] [stderr]    |
[INFO] [stderr] 51 |     if same.len() > 0 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!same.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/merge.rs:60:12
[INFO] [stderr]    |
[INFO] [stderr] 60 |         if rem.len() > 0 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!rem.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/merge.rs:65:8
[INFO] [stderr]    |
[INFO] [stderr] 65 |     if rem.len() > 0 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!rem.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/merge.rs:71:12
[INFO] [stderr]    |
[INFO] [stderr] 71 |         if add.len() > 0 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!add.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/merge.rs:76:8
[INFO] [stderr]    |
[INFO] [stderr] 76 |     if add.len() > 0 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!add.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/lcs.rs:49:20
[INFO] [stderr]    |
[INFO] [stderr] 49 |                 if snake.len() > 0 {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!snake.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/lcs.rs:68:24
[INFO] [stderr]    |
[INFO] [stderr] 68 |                     if common.len() > 0 {
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!common.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/lcs.rs:82:16
[INFO] [stderr]    |
[INFO] [stderr] 82 |             if common.len() > 0 {
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!common.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/merge.rs:17:16
[INFO] [stderr]    |
[INFO] [stderr] 17 |             if rem.len() > 0 {
[INFO] [stderr]    |                ^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!rem.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/merge.rs:26:16
[INFO] [stderr]    |
[INFO] [stderr] 26 |             if add.len() > 0 {
[INFO] [stderr]    |                ^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!add.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/merge.rs:33:12
[INFO] [stderr]    |
[INFO] [stderr] 33 |         if add.len() > 0 || rem.len() > 0 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!add.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/merge.rs:33:29
[INFO] [stderr]    |
[INFO] [stderr] 33 |         if add.len() > 0 || rem.len() > 0 {
[INFO] [stderr]    |                             ^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!rem.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/merge.rs:38:12
[INFO] [stderr]    |
[INFO] [stderr] 38 |         if rem.len() > 0 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!rem.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/merge.rs:42:12
[INFO] [stderr]    |
[INFO] [stderr] 42 |         if add.len() > 0 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!add.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/merge.rs:46:12
[INFO] [stderr]    |
[INFO] [stderr] 46 |         if same.len() > 0 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!same.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/merge.rs:51:8
[INFO] [stderr]    |
[INFO] [stderr] 51 |     if same.len() > 0 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!same.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/merge.rs:60:12
[INFO] [stderr]    |
[INFO] [stderr] 60 |         if rem.len() > 0 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!rem.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/merge.rs:65:8
[INFO] [stderr]    |
[INFO] [stderr] 65 |     if rem.len() > 0 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!rem.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/merge.rs:71:12
[INFO] [stderr]    |
[INFO] [stderr] 71 |         if add.len() > 0 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!add.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/merge.rs:76:8
[INFO] [stderr]    |
[INFO] [stderr] 76 |     if add.len() > 0 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!add.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 1.99s
[INFO] running `"docker" "inspect" "44fe9295a75d6d9caa0028b73ae6cd46a57d9a55042b480b891d1365da6170cd"`
[INFO] running `"docker" "rm" "-f" "44fe9295a75d6d9caa0028b73ae6cd46a57d9a55042b480b891d1365da6170cd"`
[INFO] [stdout] 44fe9295a75d6d9caa0028b73ae6cd46a57d9a55042b480b891d1365da6170cd