[INFO] crate pronghorn 0.1.2 is already in cache
[INFO] extracting crate pronghorn 0.1.2 into work/ex/clippy-test-run/sources/stable/reg/pronghorn/0.1.2
[INFO] extracting crate pronghorn 0.1.2 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/pronghorn/0.1.2
[INFO] validating manifest of pronghorn-0.1.2 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 pronghorn-0.1.2 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 pronghorn-0.1.2
[INFO] finished frobbing pronghorn-0.1.2
[INFO] frobbed toml for pronghorn-0.1.2 written to work/ex/clippy-test-run/sources/stable/reg/pronghorn/0.1.2/Cargo.toml
[INFO] started frobbing pronghorn-0.1.2
[INFO] finished frobbing pronghorn-0.1.2
[INFO] frobbed toml for pronghorn-0.1.2 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/pronghorn/0.1.2/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 pronghorn-0.1.2 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-2/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/pronghorn/0.1.2:/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] 3da17159d2263fdcc843830d15277f789c212003aeb34b39a9427144fdf152d4
[INFO] running `"docker" "start" "-a" "3da17159d2263fdcc843830d15277f789c212003aeb34b39a9427144fdf152d4"`
[INFO] [stderr]     Checking pronghorn v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/router.rs:36:13
[INFO] [stderr]    |
[INFO] [stderr] 36 |             method: method,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: replace it with: `method`
[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/router.rs:38:13
[INFO] [stderr]    |
[INFO] [stderr] 38 |             handler: handler
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^ help: replace it with: `handler`
[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/context.rs:12:13
[INFO] [stderr]    |
[INFO] [stderr] 12 |             request: request,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^ help: replace it with: `request`
[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/context.rs:13:13
[INFO] [stderr]    |
[INFO] [stderr] 13 |             params: params
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: replace it with: `params`
[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/router.rs:36:13
[INFO] [stderr]    |
[INFO] [stderr] 36 |             method: method,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: replace it with: `method`
[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/router.rs:38:13
[INFO] [stderr]    |
[INFO] [stderr] 38 |             handler: handler
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^ help: replace it with: `handler`
[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/context.rs:12:13
[INFO] [stderr]    |
[INFO] [stderr] 12 |             request: request,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^ help: replace it with: `request`
[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/context.rs:13:13
[INFO] [stderr]    |
[INFO] [stderr] 13 |             params: params
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: replace it with: `params`
[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/app.rs:54:9
[INFO] [stderr]    |
[INFO] [stderr] 54 |         return Box::new(futures::future::ok(notfound));
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Box::new(futures::future::ok(notfound))`
[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/app.rs:46:25
[INFO] [stderr]    |
[INFO] [stderr] 46 |                         return futures::future::ok((r.handler)(context));
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `futures::future::ok((r.handler)(context))`
[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/router.rs:47:9
[INFO] [stderr]    |
[INFO] [stderr] 47 |         return self.path.matches_path(request.path());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.path.matches_path(request.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: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]   --> src/router.rs:90:9
[INFO] [stderr]    |
[INFO] [stderr] 90 |         path_vec
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::let_and_return)] on by default
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]   --> src/router.rs:78:24
[INFO] [stderr]    |
[INFO] [stderr] 78 |           let path_vec = path.split("/")
[INFO] [stderr]    |  ________________________^
[INFO] [stderr] 79 | |             .map(|t| {
[INFO] [stderr] 80 | |                 if re.is_match(t) {
[INFO] [stderr] 81 | |                     // Capture the variable name between {}
[INFO] [stderr] ...  |
[INFO] [stderr] 88 | |             })
[INFO] [stderr] 89 | |             .collect::<Vec<PathToken>>();
[INFO] [stderr]    | |________________________________________^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/app.rs:54:9
[INFO] [stderr]    |
[INFO] [stderr] 54 |         return Box::new(futures::future::ok(notfound));
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Box::new(futures::future::ok(notfound))`
[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/app.rs:46:25
[INFO] [stderr]    |
[INFO] [stderr] 46 |                         return futures::future::ok((r.handler)(context));
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `futures::future::ok((r.handler)(context))`
[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/router.rs:47:9
[INFO] [stderr]    |
[INFO] [stderr] 47 |         return self.path.matches_path(request.path());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.path.matches_path(request.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: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]   --> src/router.rs:90:9
[INFO] [stderr]    |
[INFO] [stderr] 90 |         path_vec
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::let_and_return)] on by default
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]   --> src/router.rs:78:24
[INFO] [stderr]    |
[INFO] [stderr] 78 |           let path_vec = path.split("/")
[INFO] [stderr]    |  ________________________^
[INFO] [stderr] 79 | |             .map(|t| {
[INFO] [stderr] 80 | |                 if re.is_match(t) {
[INFO] [stderr] 81 | |                     // Capture the variable name between {}
[INFO] [stderr] ...  |
[INFO] [stderr] 88 | |             })
[INFO] [stderr] 89 | |             .collect::<Vec<PathToken>>();
[INFO] [stderr]    | |________________________________________^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/router.rs:135:9
[INFO] [stderr]     |
[INFO] [stderr] 135 |         return Response::new();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Response::new()`
[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: you should consider adding a `Default` implementation for `app::App`
[INFO] [stderr]   --> src/app.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | /     pub fn new() -> App {
[INFO] [stderr] 19 | |         App {
[INFO] [stderr] 20 | |             router: Router::new(),
[INFO] [stderr] 21 | |             pool: Builder::new().create()
[INFO] [stderr] 22 | |         }
[INFO] [stderr] 23 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::new_without_default)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 17 | impl Default for app::App {
[INFO] [stderr] 18 |     fn default() -> Self {
[INFO] [stderr] 19 |         Self::new()
[INFO] [stderr] 20 |     }
[INFO] [stderr] 21 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/app.rs:41:13
[INFO] [stderr]    |
[INFO] [stderr] 41 | /             match route.matches_request(&req) {
[INFO] [stderr] 42 | |                 Some(params) => {
[INFO] [stderr] 43 | |                     let r = route.clone();
[INFO] [stderr] 44 | |                     return Box::new(self.pool.spawn_fn(move || {
[INFO] [stderr] ...  |
[INFO] [stderr] 49 | |                 None => ()
[INFO] [stderr] 50 | |             }
[INFO] [stderr]    | |_____________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 41 |             if let Some(params) = route.matches_request(&req) {
[INFO] [stderr] 42 |     let r = route.clone();
[INFO] [stderr] 43 |     return Box::new(self.pool.spawn_fn(move || {
[INFO] [stderr] 44 |         let context = Context::new(req, params);
[INFO] [stderr] 45 |         return futures::future::ok((r.handler)(context));
[INFO] [stderr] 46 |     }))
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `router::Router`
[INFO] [stderr]   --> src/router.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | /     pub fn new() -> Router {
[INFO] [stderr] 14 | |         Router {
[INFO] [stderr] 15 | |             routes: Vec::new()
[INFO] [stderr] 16 | |         }
[INFO] [stderr] 17 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::new_without_default_derive)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 8  | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/router.rs:78:35
[INFO] [stderr]    |
[INFO] [stderr] 78 |         let path_vec = path.split("/")
[INFO] [stderr]    |                                   ^^^ help: try using a char instead: `'/'`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_char_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/router.rs:95:54
[INFO] [stderr]    |
[INFO] [stderr] 95 |         let incoming_path = &request_path[1..].split("/").map(|i| {
[INFO] [stderr]    |                                                      ^^^ help: try using a char instead: `'/'`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/router.rs:108:13
[INFO] [stderr]     |
[INFO] [stderr] 108 | /             match token {
[INFO] [stderr] 109 | |                 &PathToken::Str(ref s) => {
[INFO] [stderr] 110 | |                     if *s != incoming_path[index] {
[INFO] [stderr] 111 | |                         return None
[INFO] [stderr] ...   |
[INFO] [stderr] 121 | |                 } 
[INFO] [stderr] 122 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 108 |             match *token {
[INFO] [stderr] 109 |                 PathToken::Str(ref s) => {
[INFO] [stderr] 110 |                     if *s != incoming_path[index] {
[INFO] [stderr] 111 |                         return None
[INFO] [stderr] 112 |                     }
[INFO] [stderr] 113 |                 },
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider adding a `Default` implementation for `app::App`
[INFO] [stderr]   --> src/app.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | /     pub fn new() -> App {
[INFO] [stderr] 19 | |         App {
[INFO] [stderr] 20 | |             router: Router::new(),
[INFO] [stderr] 21 | |             pool: Builder::new().create()
[INFO] [stderr] 22 | |         }
[INFO] [stderr] 23 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::new_without_default)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 17 | impl Default for app::App {
[INFO] [stderr] 18 |     fn default() -> Self {
[INFO] [stderr] 19 |         Self::new()
[INFO] [stderr] 20 |     }
[INFO] [stderr] 21 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/app.rs:41:13
[INFO] [stderr]    |
[INFO] [stderr] 41 | /             match route.matches_request(&req) {
[INFO] [stderr] 42 | |                 Some(params) => {
[INFO] [stderr] 43 | |                     let r = route.clone();
[INFO] [stderr] 44 | |                     return Box::new(self.pool.spawn_fn(move || {
[INFO] [stderr] ...  |
[INFO] [stderr] 49 | |                 None => ()
[INFO] [stderr] 50 | |             }
[INFO] [stderr]    | |_____________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 41 |             if let Some(params) = route.matches_request(&req) {
[INFO] [stderr] 42 |     let r = route.clone();
[INFO] [stderr] 43 |     return Box::new(self.pool.spawn_fn(move || {
[INFO] [stderr] 44 |         let context = Context::new(req, params);
[INFO] [stderr] 45 |         return futures::future::ok((r.handler)(context));
[INFO] [stderr] 46 |     }))
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `router::Router`
[INFO] [stderr]   --> src/router.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | /     pub fn new() -> Router {
[INFO] [stderr] 14 | |         Router {
[INFO] [stderr] 15 | |             routes: Vec::new()
[INFO] [stderr] 16 | |         }
[INFO] [stderr] 17 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::new_without_default_derive)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 8  | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/router.rs:78:35
[INFO] [stderr]    |
[INFO] [stderr] 78 |         let path_vec = path.split("/")
[INFO] [stderr]    |                                   ^^^ help: try using a char instead: `'/'`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_char_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/router.rs:95:54
[INFO] [stderr]    |
[INFO] [stderr] 95 |         let incoming_path = &request_path[1..].split("/").map(|i| {
[INFO] [stderr]    |                                                      ^^^ help: try using a char instead: `'/'`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/router.rs:108:13
[INFO] [stderr]     |
[INFO] [stderr] 108 | /             match token {
[INFO] [stderr] 109 | |                 &PathToken::Str(ref s) => {
[INFO] [stderr] 110 | |                     if *s != incoming_path[index] {
[INFO] [stderr] 111 | |                         return None
[INFO] [stderr] ...   |
[INFO] [stderr] 121 | |                 } 
[INFO] [stderr] 122 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 108 |             match *token {
[INFO] [stderr] 109 |                 PathToken::Str(ref s) => {
[INFO] [stderr] 110 |                     if *s != incoming_path[index] {
[INFO] [stderr] 111 |                         return None
[INFO] [stderr] 112 |                     }
[INFO] [stderr] 113 |                 },
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> examples/simple.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     return Response::new();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Response::new()`
[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: called `.get().unwrap()` on a BTreeMap. Using `[]` is more clear and more concise
[INFO] [stderr]   --> examples/simple.rs:19:20
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let username = context.params.get("username").unwrap();
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&context.params["username"]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.15s
[INFO] running `"docker" "inspect" "3da17159d2263fdcc843830d15277f789c212003aeb34b39a9427144fdf152d4"`
[INFO] running `"docker" "rm" "-f" "3da17159d2263fdcc843830d15277f789c212003aeb34b39a9427144fdf152d4"`
[INFO] [stdout] 3da17159d2263fdcc843830d15277f789c212003aeb34b39a9427144fdf152d4