[INFO] crate graphsearch 0.6.0 is already in cache
[INFO] extracting crate graphsearch 0.6.0 into work/ex/clippy-test-run/sources/stable/reg/graphsearch/0.6.0
[INFO] extracting crate graphsearch 0.6.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/graphsearch/0.6.0
[INFO] validating manifest of graphsearch-0.6.0 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 graphsearch-0.6.0 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 graphsearch-0.6.0
[INFO] finished frobbing graphsearch-0.6.0
[INFO] frobbed toml for graphsearch-0.6.0 written to work/ex/clippy-test-run/sources/stable/reg/graphsearch/0.6.0/Cargo.toml
[INFO] started frobbing graphsearch-0.6.0
[INFO] finished frobbing graphsearch-0.6.0
[INFO] frobbed toml for graphsearch-0.6.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/graphsearch/0.6.0/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 graphsearch-0.6.0 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-6/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/graphsearch/0.6.0:/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] 702defae33448db7694dd14b6d71a0706fb77360d92dc6ec8dd6571545465607
[INFO] running `"docker" "start" "-a" "702defae33448db7694dd14b6d71a0706fb77360d92dc6ec8dd6571545465607"`
[INFO] [stderr]     Checking graphsearch v0.6.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:132:5
[INFO] [stderr]     |
[INFO] [stderr] 132 |     return self.dijkstra(start, &target)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.dijkstra(start, &target)`
[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: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:150:5
[INFO] [stderr]     |
[INFO] [stderr] 150 |     return self.dijkstra_using_index(start, target)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.dijkstra_using_index(start, target)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:168:5
[INFO] [stderr]     |
[INFO] [stderr] 168 |     return self.inner_search(start, &target, true)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.inner_search(start, &target, true)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:186:5
[INFO] [stderr]     |
[INFO] [stderr] 186 |     return self.inner_search_using_index(start, target, true)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.inner_search_using_index(start, target, true)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:204:5
[INFO] [stderr]     |
[INFO] [stderr] 204 |     return self.inner_search(start, &target, false)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.inner_search(start, &target, false)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:222:5
[INFO] [stderr]     |
[INFO] [stderr] 222 |     return self.inner_search_using_index(start, target, false)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.inner_search_using_index(start, target, false)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:268:5
[INFO] [stderr]     |
[INFO] [stderr] 268 |     return None
[INFO] [stderr]     |     ^^^^^^^^^^^ help: remove `return` as shown: `None`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:284:17
[INFO] [stderr]     |
[INFO] [stderr] 284 |       None => { return None }, // target does not exist in the graph
[INFO] [stderr]     |                 ^^^^^^^^^^^ help: remove `return` as shown: `None`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:285:23
[INFO] [stderr]     |
[INFO] [stderr] 285 |       Some(node) => { return self.dijkstra(start, &node.content) }
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.dijkstra(start, &node.content)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:304:5
[INFO] [stderr]     |
[INFO] [stderr] 304 |     return cost
[INFO] [stderr]     |     ^^^^^^^^^^^ help: remove `return` as shown: `cost`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]    --> src/lib.rs:299:14
[INFO] [stderr]     |
[INFO] [stderr] 299 |     for i in (0..path.len()-1) {
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:323:5
[INFO] [stderr]     |
[INFO] [stderr] 323 |     return None
[INFO] [stderr]     |     ^^^^^^^^^^^ help: remove `return` as shown: `None`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]    --> src/lib.rs:320:14
[INFO] [stderr]     |
[INFO] [stderr] 320 |     for i in (0..self.graph.len()) {
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:338:5
[INFO] [stderr]     |
[INFO] [stderr] 338 |     return None
[INFO] [stderr]     |     ^^^^^^^^^^^ help: remove `return` as shown: `None`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:377:5
[INFO] [stderr]     |
[INFO] [stderr] 377 |     return None
[INFO] [stderr]     |     ^^^^^^^^^^^ help: remove `return` as shown: `None`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:382:17
[INFO] [stderr]     |
[INFO] [stderr] 382 |       None => { return None }, // target does not exist in the graph
[INFO] [stderr]     |                 ^^^^^^^^^^^ help: remove `return` as shown: `None`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:383:23
[INFO] [stderr]     |
[INFO] [stderr] 383 |       Some(node) => { return self.inner_search(start, &node.content, bfs) }
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.inner_search(start, &node.content, bfs)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:401:7
[INFO] [stderr]     |
[INFO] [stderr] 401 |       return path
[INFO] [stderr]     |       ^^^^^^^^^^^ help: remove `return` as shown: `path`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:352:11
[INFO] [stderr]     |
[INFO] [stderr] 352 |       let mut v: Option<usize>;
[INFO] [stderr]     |           ----^
[INFO] [stderr]     |           |
[INFO] [stderr]     |           help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/lib.rs:301:35
[INFO] [stderr]     |
[INFO] [stderr] 301 |         if vert.node==path[i+1] { cost = cost + vert.cost; }
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `cost += vert.cost`
[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: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:132:5
[INFO] [stderr]     |
[INFO] [stderr] 132 |     return self.dijkstra(start, &target)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.dijkstra(start, &target)`
[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: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:150:5
[INFO] [stderr]     |
[INFO] [stderr] 150 |     return self.dijkstra_using_index(start, target)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.dijkstra_using_index(start, target)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:168:5
[INFO] [stderr]     |
[INFO] [stderr] 168 |     return self.inner_search(start, &target, true)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.inner_search(start, &target, true)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:186:5
[INFO] [stderr]     |
[INFO] [stderr] 186 |     return self.inner_search_using_index(start, target, true)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.inner_search_using_index(start, target, true)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:204:5
[INFO] [stderr]     |
[INFO] [stderr] 204 |     return self.inner_search(start, &target, false)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.inner_search(start, &target, false)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:222:5
[INFO] [stderr]     |
[INFO] [stderr] 222 |     return self.inner_search_using_index(start, target, false)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.inner_search_using_index(start, target, false)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:268:5
[INFO] [stderr]     |
[INFO] [stderr] 268 |     return None
[INFO] [stderr]     |     ^^^^^^^^^^^ help: remove `return` as shown: `None`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:284:17
[INFO] [stderr]     |
[INFO] [stderr] 284 |       None => { return None }, // target does not exist in the graph
[INFO] [stderr]     |                 ^^^^^^^^^^^ help: remove `return` as shown: `None`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:285:23
[INFO] [stderr]     |
[INFO] [stderr] 285 |       Some(node) => { return self.dijkstra(start, &node.content) }
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.dijkstra(start, &node.content)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:304:5
[INFO] [stderr]     |
[INFO] [stderr] 304 |     return cost
[INFO] [stderr]     |     ^^^^^^^^^^^ help: remove `return` as shown: `cost`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]    --> src/lib.rs:299:14
[INFO] [stderr]     |
[INFO] [stderr] 299 |     for i in (0..path.len()-1) {
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:323:5
[INFO] [stderr]     |
[INFO] [stderr] 323 |     return None
[INFO] [stderr]     |     ^^^^^^^^^^^ help: remove `return` as shown: `None`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]    --> src/lib.rs:320:14
[INFO] [stderr]     |
[INFO] [stderr] 320 |     for i in (0..self.graph.len()) {
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:338:5
[INFO] [stderr]     |
[INFO] [stderr] 338 |     return None
[INFO] [stderr]     |     ^^^^^^^^^^^ help: remove `return` as shown: `None`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:377:5
[INFO] [stderr]     |
[INFO] [stderr] 377 |     return None
[INFO] [stderr]     |     ^^^^^^^^^^^ help: remove `return` as shown: `None`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:382:17
[INFO] [stderr]     |
[INFO] [stderr] 382 |       None => { return None }, // target does not exist in the graph
[INFO] [stderr]     |                 ^^^^^^^^^^^ help: remove `return` as shown: `None`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:383:23
[INFO] [stderr]     |
[INFO] [stderr] 383 |       Some(node) => { return self.inner_search(start, &node.content, bfs) }
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.inner_search(start, &node.content, bfs)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:401:7
[INFO] [stderr]     |
[INFO] [stderr] 401 |       return path
[INFO] [stderr]     |       ^^^^^^^^^^^ help: remove `return` as shown: `path`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]    --> src/lib.rs:432:16
[INFO] [stderr]     |
[INFO] [stderr] 432 |       for i in (0..expected_path.len()) { assert_eq!(result[i], expected_path[i]); }
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]    --> src/lib.rs:493:16
[INFO] [stderr]     |
[INFO] [stderr] 493 |       for i in (0..expected_path.len()) { assert_eq!(result[i], expected_path[i]); }
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]    --> src/lib.rs:556:16
[INFO] [stderr]     |
[INFO] [stderr] 556 |       for i in (0..expected_path.len()) { assert_eq!(result[i], expected_path[i]); }
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]    --> src/lib.rs:616:16
[INFO] [stderr]     |
[INFO] [stderr] 616 |       for i in (0..expected_path.len()) { assert_eq!(result[i], expected_path[i]); }
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]    --> src/lib.rs:678:16
[INFO] [stderr]     |
[INFO] [stderr] 678 |       for i in (0..expected_path.len()) { assert_eq!(result[i], expected_path[i]); }
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]    --> src/lib.rs:738:16
[INFO] [stderr]     |
[INFO] [stderr] 738 |       for i in (0..expected_path.len()) { assert_eq!(result[i], expected_path[i]); }
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]    --> src/lib.rs:830:16
[INFO] [stderr]     |
[INFO] [stderr] 830 |       for i in (0..expected_path.len()) { assert_eq!(result[i], expected_path[i]); }
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:352:11
[INFO] [stderr]     |
[INFO] [stderr] 352 |       let mut v: Option<usize>;
[INFO] [stderr]     |           ----^
[INFO] [stderr]     |           |
[INFO] [stderr]     |           help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/lib.rs:301:35
[INFO] [stderr]     |
[INFO] [stderr] 301 |         if vert.node==path[i+1] { cost = cost + vert.cost; }
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `cost += vert.cost`
[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]     Finished dev [unoptimized + debuginfo] target(s) in 1.37s
[INFO] running `"docker" "inspect" "702defae33448db7694dd14b6d71a0706fb77360d92dc6ec8dd6571545465607"`
[INFO] running `"docker" "rm" "-f" "702defae33448db7694dd14b6d71a0706fb77360d92dc6ec8dd6571545465607"`
[INFO] [stdout] 702defae33448db7694dd14b6d71a0706fb77360d92dc6ec8dd6571545465607