[INFO] updating cached repository vintersnow/edit_distance.rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/vintersnow/edit_distance.rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/vintersnow/edit_distance.rs" "work/ex/clippy-test-run/sources/stable/gh/vintersnow/edit_distance.rs"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/vintersnow/edit_distance.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/vintersnow/edit_distance.rs" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/vintersnow/edit_distance.rs"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/vintersnow/edit_distance.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4a2914343119708430980c38346a214fdfe9d155
[INFO] sha for GitHub repo vintersnow/edit_distance.rs: 4a2914343119708430980c38346a214fdfe9d155
[INFO] validating manifest of vintersnow/edit_distance.rs 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 vintersnow/edit_distance.rs 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 vintersnow/edit_distance.rs
[INFO] finished frobbing vintersnow/edit_distance.rs
[INFO] frobbed toml for vintersnow/edit_distance.rs written to work/ex/clippy-test-run/sources/stable/gh/vintersnow/edit_distance.rs/Cargo.toml
[INFO] started frobbing vintersnow/edit_distance.rs
[INFO] finished frobbing vintersnow/edit_distance.rs
[INFO] frobbed toml for vintersnow/edit_distance.rs written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/vintersnow/edit_distance.rs/Cargo.toml
[INFO] crate vintersnow/edit_distance.rs 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 vintersnow/edit_distance.rs 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-1/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/vintersnow/edit_distance.rs:/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] 94273f98a0feaca63a107f753d21002254b389d2e58f9fe19b535d2ea8f5152e
[INFO] running `"docker" "start" "-a" "94273f98a0feaca63a107f753d21002254b389d2e58f9fe19b535d2ea8f5152e"`
[INFO] [stderr]     Checking edit_distance v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/main.rs:40:13
[INFO] [stderr]    |
[INFO] [stderr] 40 |             s1: s1,
[INFO] [stderr]    |             ^^^^^^ help: replace it with: `s1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/main.rs:41:13
[INFO] [stderr]    |
[INFO] [stderr] 41 |             s2: s2,
[INFO] [stderr]    |             ^^^^^^ help: replace it with: `s2`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/main.rs:40:13
[INFO] [stderr]    |
[INFO] [stderr] 40 |             s1: s1,
[INFO] [stderr]    |             ^^^^^^ help: replace it with: `s1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/main.rs:41:13
[INFO] [stderr]    |
[INFO] [stderr] 41 |             s2: s2,
[INFO] [stderr]    |             ^^^^^^ help: replace it with: `s2`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:78:9
[INFO] [stderr]    |
[INFO] [stderr] 78 |         return self.dist_mat[self.s1.len() - 1][self.s2.len() - 1];
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.dist_mat[self.s1.len() - 1][self.s2.len() - 1]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/main.rs:54:35
[INFO] [stderr]    |
[INFO] [stderr] 54 |             self.dist_mat[i][0] = 1000000 as u32;
[INFO] [stderr]    |                                   ^^^^^^^ help: consider: `1_000_000`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/main.rs:58:35
[INFO] [stderr]    |
[INFO] [stderr] 58 |             self.dist_mat[0][i] = 1000000 as u32;
[INFO] [stderr]    |                                   ^^^^^^^ help: consider: `1_000_000`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:78:9
[INFO] [stderr]    |
[INFO] [stderr] 78 |         return self.dist_mat[self.s1.len() - 1][self.s2.len() - 1];
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.dist_mat[self.s1.len() - 1][self.s2.len() - 1]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/main.rs:54:35
[INFO] [stderr]    |
[INFO] [stderr] 54 |             self.dist_mat[i][0] = 1000000 as u32;
[INFO] [stderr]    |                                   ^^^^^^^ help: consider: `1_000_000`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/main.rs:58:35
[INFO] [stderr]    |
[INFO] [stderr] 58 |             self.dist_mat[0][i] = 1000000 as u32;
[INFO] [stderr]    |                                   ^^^^^^^ help: consider: `1_000_000`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/main.rs:74:39
[INFO] [stderr]    |
[INFO] [stderr] 74 |                 self.dist_mat[i][j] = (*m).clone();
[INFO] [stderr]    |                                       ^^^^^^^^^^^^ help: try removing the `clone` call: `(*m)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::clone_on_copy)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/main.rs:100:22
[INFO] [stderr]     |
[INFO] [stderr] 100 |                 0 => j = j-1,
[INFO] [stderr]     |                      ^^^^^^^ help: replace it with: `j -= 1`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/main.rs:101:22
[INFO] [stderr]     |
[INFO] [stderr] 101 |                 1 => i = i-1,
[INFO] [stderr]     |                      ^^^^^^^ help: replace it with: `i -= 1`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/main.rs:102:23
[INFO] [stderr]     |
[INFO] [stderr] 102 |                 _ => {j=j-1; i=i-1}
[INFO] [stderr]     |                       ^^^^^ help: replace it with: `j -= 1`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/main.rs:102:30
[INFO] [stderr]     |
[INFO] [stderr] 102 |                 _ => {j=j-1; i=i-1}
[INFO] [stderr]     |                              ^^^^^ help: replace it with: `i -= 1`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] error: using `clone` on a double-reference; this will copy the reference instead of cloning the inner type
[INFO] [stderr]    --> src/main.rs:112:46
[INFO] [stderr]     |
[INFO] [stderr] 112 |                 0 => {s2_idx+=1; ("+", (" ", self.s2[s2_idx].clone()))},
[INFO] [stderr]     |                                              ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::clone_double_ref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_double_ref
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]     |
[INFO] [stderr] 112 |                 0 => {s2_idx+=1; ("+", (" ", &(*self.s2[s2_idx]).clone()))},
[INFO] [stderr]     |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 112 |                 0 => {s2_idx+=1; ("+", (" ", &str::clone(self.s2[s2_idx])))},
[INFO] [stderr]     |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: using `clone` on a double-reference; this will copy the reference instead of cloning the inner type
[INFO] [stderr]    --> src/main.rs:113:41
[INFO] [stderr]     |
[INFO] [stderr] 113 |                 1 => {s1_idx+=1; ("-", (self.s1[s1_idx].clone(), " "))},
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_double_ref
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]     |
[INFO] [stderr] 113 |                 1 => {s1_idx+=1; ("-", (&(*self.s1[s1_idx]).clone(), " "))},
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 113 |                 1 => {s1_idx+=1; ("-", (&str::clone(self.s1[s1_idx]), " "))},
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: using `clone` on a double-reference; this will copy the reference instead of cloning the inner type
[INFO] [stderr]    --> src/main.rs:114:52
[INFO] [stderr]     |
[INFO] [stderr] 114 |                 2 => {s1_idx+=1; s2_idx+=1; ("#", (self.s1[s1_idx].clone(), self.s2[s2_idx].clone()))},
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_double_ref
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]     |
[INFO] [stderr] 114 |                 2 => {s1_idx+=1; s2_idx+=1; ("#", (&(*self.s1[s1_idx]).clone(), self.s2[s2_idx].clone()))},
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 114 |                 2 => {s1_idx+=1; s2_idx+=1; ("#", (&str::clone(self.s1[s1_idx]), self.s2[s2_idx].clone()))},
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: using `clone` on a double-reference; this will copy the reference instead of cloning the inner type
[INFO] [stderr]    --> src/main.rs:114:77
[INFO] [stderr]     |
[INFO] [stderr] 114 |                 2 => {s1_idx+=1; s2_idx+=1; ("#", (self.s1[s1_idx].clone(), self.s2[s2_idx].clone()))},
[INFO] [stderr]     |                                                                             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_double_ref
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]     |
[INFO] [stderr] 114 |                 2 => {s1_idx+=1; s2_idx+=1; ("#", (self.s1[s1_idx].clone(), &(*self.s2[s2_idx]).clone()))},
[INFO] [stderr]     |                                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 114 |                 2 => {s1_idx+=1; s2_idx+=1; ("#", (self.s1[s1_idx].clone(), &str::clone(self.s2[s2_idx])))},
[INFO] [stderr]     |                                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: using `clone` on a double-reference; this will copy the reference instead of cloning the inner type
[INFO] [stderr]    --> src/main.rs:115:52
[INFO] [stderr]     |
[INFO] [stderr] 115 |                 _ => {s1_idx+=1; s2_idx+=1; ("=", (self.s1[s1_idx].clone(), self.s2[s2_idx].clone()))},
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_double_ref
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]     |
[INFO] [stderr] 115 |                 _ => {s1_idx+=1; s2_idx+=1; ("=", (&(*self.s1[s1_idx]).clone(), self.s2[s2_idx].clone()))},
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 115 |                 _ => {s1_idx+=1; s2_idx+=1; ("=", (&str::clone(self.s1[s1_idx]), self.s2[s2_idx].clone()))},
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: using `clone` on a double-reference; this will copy the reference instead of cloning the inner type
[INFO] [stderr]    --> src/main.rs:115:77
[INFO] [stderr]     |
[INFO] [stderr] 115 |                 _ => {s1_idx+=1; s2_idx+=1; ("=", (self.s1[s1_idx].clone(), self.s2[s2_idx].clone()))},
[INFO] [stderr]     |                                                                             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_double_ref
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]     |
[INFO] [stderr] 115 |                 _ => {s1_idx+=1; s2_idx+=1; ("=", (self.s1[s1_idx].clone(), &(*self.s2[s2_idx]).clone()))},
[INFO] [stderr]     |                                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 115 |                 _ => {s1_idx+=1; s2_idx+=1; ("=", (self.s1[s1_idx].clone(), &str::clone(self.s2[s2_idx])))},
[INFO] [stderr]     |                                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/main.rs:176:8
[INFO] [stderr]     |
[INFO] [stderr] 176 |     if v.len() != 0 {
[INFO] [stderr]     |        ^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!v.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] error: aborting due to 6 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `edit_distance`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/main.rs:74:39
[INFO] [stderr]    |
[INFO] [stderr] 74 |                 self.dist_mat[i][j] = (*m).clone();
[INFO] [stderr]    |                                       ^^^^^^^^^^^^ help: try removing the `clone` call: `(*m)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::clone_on_copy)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/main.rs:100:22
[INFO] [stderr]     |
[INFO] [stderr] 100 |                 0 => j = j-1,
[INFO] [stderr]     |                      ^^^^^^^ help: replace it with: `j -= 1`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/main.rs:101:22
[INFO] [stderr]     |
[INFO] [stderr] 101 |                 1 => i = i-1,
[INFO] [stderr]     |                      ^^^^^^^ help: replace it with: `i -= 1`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/main.rs:102:23
[INFO] [stderr]     |
[INFO] [stderr] 102 |                 _ => {j=j-1; i=i-1}
[INFO] [stderr]     |                       ^^^^^ help: replace it with: `j -= 1`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/main.rs:102:30
[INFO] [stderr]     |
[INFO] [stderr] 102 |                 _ => {j=j-1; i=i-1}
[INFO] [stderr]     |                              ^^^^^ help: replace it with: `i -= 1`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] error: using `clone` on a double-reference; this will copy the reference instead of cloning the inner type
[INFO] [stderr]    --> src/main.rs:112:46
[INFO] [stderr]     |
[INFO] [stderr] 112 |                 0 => {s2_idx+=1; ("+", (" ", self.s2[s2_idx].clone()))},
[INFO] [stderr]     |                                              ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::clone_double_ref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_double_ref
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]     |
[INFO] [stderr] 112 |                 0 => {s2_idx+=1; ("+", (" ", &(*self.s2[s2_idx]).clone()))},
[INFO] [stderr]     |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 112 |                 0 => {s2_idx+=1; ("+", (" ", &str::clone(self.s2[s2_idx])))},
[INFO] [stderr]     |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: using `clone` on a double-reference; this will copy the reference instead of cloning the inner type
[INFO] [stderr]    --> src/main.rs:113:41
[INFO] [stderr]     |
[INFO] [stderr] 113 |                 1 => {s1_idx+=1; ("-", (self.s1[s1_idx].clone(), " "))},
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_double_ref
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]     |
[INFO] [stderr] 113 |                 1 => {s1_idx+=1; ("-", (&(*self.s1[s1_idx]).clone(), " "))},
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 113 |                 1 => {s1_idx+=1; ("-", (&str::clone(self.s1[s1_idx]), " "))},
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: using `clone` on a double-reference; this will copy the reference instead of cloning the inner type
[INFO] [stderr]    --> src/main.rs:114:52
[INFO] [stderr]     |
[INFO] [stderr] 114 |                 2 => {s1_idx+=1; s2_idx+=1; ("#", (self.s1[s1_idx].clone(), self.s2[s2_idx].clone()))},
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_double_ref
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]     |
[INFO] [stderr] 114 |                 2 => {s1_idx+=1; s2_idx+=1; ("#", (&(*self.s1[s1_idx]).clone(), self.s2[s2_idx].clone()))},
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 114 |                 2 => {s1_idx+=1; s2_idx+=1; ("#", (&str::clone(self.s1[s1_idx]), self.s2[s2_idx].clone()))},
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: using `clone` on a double-reference; this will copy the reference instead of cloning the inner type
[INFO] [stderr]    --> src/main.rs:114:77
[INFO] [stderr]     |
[INFO] [stderr] 114 |                 2 => {s1_idx+=1; s2_idx+=1; ("#", (self.s1[s1_idx].clone(), self.s2[s2_idx].clone()))},
[INFO] [stderr]     |                                                                             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_double_ref
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]     |
[INFO] [stderr] 114 |                 2 => {s1_idx+=1; s2_idx+=1; ("#", (self.s1[s1_idx].clone(), &(*self.s2[s2_idx]).clone()))},
[INFO] [stderr]     |                                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 114 |                 2 => {s1_idx+=1; s2_idx+=1; ("#", (self.s1[s1_idx].clone(), &str::clone(self.s2[s2_idx])))},
[INFO] [stderr]     |                                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: using `clone` on a double-reference; this will copy the reference instead of cloning the inner type
[INFO] [stderr]    --> src/main.rs:115:52
[INFO] [stderr]     |
[INFO] [stderr] 115 |                 _ => {s1_idx+=1; s2_idx+=1; ("=", (self.s1[s1_idx].clone(), self.s2[s2_idx].clone()))},
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_double_ref
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]     |
[INFO] [stderr] 115 |                 _ => {s1_idx+=1; s2_idx+=1; ("=", (&(*self.s1[s1_idx]).clone(), self.s2[s2_idx].clone()))},
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 115 |                 _ => {s1_idx+=1; s2_idx+=1; ("=", (&str::clone(self.s1[s1_idx]), self.s2[s2_idx].clone()))},
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: using `clone` on a double-reference; this will copy the reference instead of cloning the inner type
[INFO] [stderr]    --> src/main.rs:115:77
[INFO] [stderr]     |
[INFO] [stderr] 115 |                 _ => {s1_idx+=1; s2_idx+=1; ("=", (self.s1[s1_idx].clone(), self.s2[s2_idx].clone()))},
[INFO] [stderr]     |                                                                             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_double_ref
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]     |
[INFO] [stderr] 115 |                 _ => {s1_idx+=1; s2_idx+=1; ("=", (self.s1[s1_idx].clone(), &(*self.s2[s2_idx]).clone()))},
[INFO] [stderr]     |                                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 115 |                 _ => {s1_idx+=1; s2_idx+=1; ("=", (self.s1[s1_idx].clone(), &str::clone(self.s2[s2_idx])))},
[INFO] [stderr]     |                                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/main.rs:176:8
[INFO] [stderr]     |
[INFO] [stderr] 176 |     if v.len() != 0 {
[INFO] [stderr]     |        ^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!v.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] error: aborting due to 6 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `edit_distance`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "94273f98a0feaca63a107f753d21002254b389d2e58f9fe19b535d2ea8f5152e"`
[INFO] running `"docker" "rm" "-f" "94273f98a0feaca63a107f753d21002254b389d2e58f9fe19b535d2ea8f5152e"`
[INFO] [stdout] 94273f98a0feaca63a107f753d21002254b389d2e58f9fe19b535d2ea8f5152e