[INFO] crate jsonrpc-http-server 9.0.0 is already in cache
[INFO] extracting crate jsonrpc-http-server 9.0.0 into work/ex/clippy-test-run/sources/stable/reg/jsonrpc-http-server/9.0.0
[INFO] extracting crate jsonrpc-http-server 9.0.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/jsonrpc-http-server/9.0.0
[INFO] validating manifest of jsonrpc-http-server-9.0.0 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 jsonrpc-http-server-9.0.0 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 jsonrpc-http-server-9.0.0
[INFO] finished frobbing jsonrpc-http-server-9.0.0
[INFO] frobbed toml for jsonrpc-http-server-9.0.0 written to work/ex/clippy-test-run/sources/stable/reg/jsonrpc-http-server/9.0.0/Cargo.toml
[INFO] started frobbing jsonrpc-http-server-9.0.0
[INFO] finished frobbing jsonrpc-http-server-9.0.0
[INFO] frobbed toml for jsonrpc-http-server-9.0.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/jsonrpc-http-server/9.0.0/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 jsonrpc-http-server-9.0.0 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/jsonrpc-http-server/9.0.0:/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] 227e802c08dbcb6213c59b6d9f15121df6b8c2b330f0b828309656ba96625842
[INFO] running `"docker" "start" "-a" "227e802c08dbcb6213c59b6d9f15121df6b8c2b330f0b828309656ba96625842"`
[INFO] [stderr]     Checking jsonrpc-core v9.0.0
[INFO] [stderr]     Checking jsonrpc-server-utils v9.0.0
[INFO] [stderr]     Checking jsonrpc-http-server v9.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/tests.rs:116:3
[INFO] [stderr]     |
[INFO] [stderr] 116 |         status: status,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^ help: replace it with: `status`
[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/tests.rs:117:3
[INFO] [stderr]     |
[INFO] [stderr] 117 |         headers: headers,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^ help: replace it with: `headers`
[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/tests.rs:118:3
[INFO] [stderr]     |
[INFO] [stderr] 118 |         body: body,
[INFO] [stderr]     |         ^^^^^^^^^^ help: replace it with: `body`
[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/handler.rs:407:3
[INFO] [stderr]     |
[INFO] [stderr] 407 |           return Ok(RpcPollState::Ready(RpcHandlerState::WaitingForResponse(
[INFO] [stderr]     |  _________^
[INFO] [stderr] 408 | |             future::Either::B(self.jsonrpc_handler.handler.handle_rpc_request(call, metadata))
[INFO] [stderr] 409 | |                 .map(|res| match res {
[INFO] [stderr] 410 | |                     Some(core::Response::Single(Output::Success(Success { result, .. }))) => {
[INFO] [stderr] ...   |
[INFO] [stderr] 423 | |                 })
[INFO] [stderr] 424 | |         )));
[INFO] [stderr]     | |____________^
[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] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 407 |         Ok(RpcPollState::Ready(RpcHandlerState::WaitingForResponse(
[INFO] [stderr] 408 |             future::Either::B(self.jsonrpc_handler.handler.handle_rpc_request(call, metadata))
[INFO] [stderr] 409 |                 .map(|res| match res {
[INFO] [stderr] 410 |                     Some(core::Response::Single(Output::Success(Success { result, .. }))) => {
[INFO] [stderr] 411 |                         let result = serde_json::to_string(&result)
[INFO] [stderr] 412 |                             .expect("Serialization of result is infallible;qed");
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/handler.rs:455:3
[INFO] [stderr]     |
[INFO] [stderr] 455 |           return Ok(RpcPollState::Ready(RpcHandlerState::Waiting(
[INFO] [stderr]     |  _________^
[INFO] [stderr] 456 | |             future::Either::B(self.jsonrpc_handler.handler.handle_rpc_request(call, metadata))
[INFO] [stderr] 457 | |                 .map(|res| res.map(|x| serde_json::to_string(&x)
[INFO] [stderr] 458 | |                     .expect("Serialization of response is infallible;qed")
[INFO] [stderr] 459 | |                 ))
[INFO] [stderr] 460 | |         )));
[INFO] [stderr]     | |____________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 455 |         Ok(RpcPollState::Ready(RpcHandlerState::Waiting(
[INFO] [stderr] 456 |             future::Either::B(self.jsonrpc_handler.handler.handle_rpc_request(call, metadata))
[INFO] [stderr] 457 |                 .map(|res| res.map(|x| serde_json::to_string(&x)
[INFO] [stderr] 458 |                     .expect("Serialization of response is infallible;qed")
[INFO] [stderr] 459 |                 ))
[INFO] [stderr] 460 |         )))
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]    --> src/lib.rs:561:15
[INFO] [stderr]     |
[INFO] [stderr] 561 | const PROOF: &'static str = "Server is always Some until self is consumed.";
[INFO] [stderr]     |              -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::const_static_lifetime)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'server_utils::tokio::reactor::Handle::current': semantics were sometimes surprising, use Handle::default()
[INFO] [stderr]    --> src/lib.rs:462:16
[INFO] [stderr]     |
[INFO] [stderr] 462 |         let handle = tokio::reactor::Handle::current();
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/handler.rs:407:3
[INFO] [stderr]     |
[INFO] [stderr] 407 |           return Ok(RpcPollState::Ready(RpcHandlerState::WaitingForResponse(
[INFO] [stderr]     |  _________^
[INFO] [stderr] 408 | |             future::Either::B(self.jsonrpc_handler.handler.handle_rpc_request(call, metadata))
[INFO] [stderr] 409 | |                 .map(|res| match res {
[INFO] [stderr] 410 | |                     Some(core::Response::Single(Output::Success(Success { result, .. }))) => {
[INFO] [stderr] ...   |
[INFO] [stderr] 423 | |                 })
[INFO] [stderr] 424 | |         )));
[INFO] [stderr]     | |____________^
[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] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 407 |         Ok(RpcPollState::Ready(RpcHandlerState::WaitingForResponse(
[INFO] [stderr] 408 |             future::Either::B(self.jsonrpc_handler.handler.handle_rpc_request(call, metadata))
[INFO] [stderr] 409 |                 .map(|res| match res {
[INFO] [stderr] 410 |                     Some(core::Response::Single(Output::Success(Success { result, .. }))) => {
[INFO] [stderr] 411 |                         let result = serde_json::to_string(&result)
[INFO] [stderr] 412 |                             .expect("Serialization of result is infallible;qed");
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/handler.rs:455:3
[INFO] [stderr]     |
[INFO] [stderr] 455 |           return Ok(RpcPollState::Ready(RpcHandlerState::Waiting(
[INFO] [stderr]     |  _________^
[INFO] [stderr] 456 | |             future::Either::B(self.jsonrpc_handler.handler.handle_rpc_request(call, metadata))
[INFO] [stderr] 457 | |                 .map(|res| res.map(|x| serde_json::to_string(&x)
[INFO] [stderr] 458 | |                     .expect("Serialization of response is infallible;qed")
[INFO] [stderr] 459 | |                 ))
[INFO] [stderr] 460 | |         )));
[INFO] [stderr]     | |____________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 455 |         Ok(RpcPollState::Ready(RpcHandlerState::Waiting(
[INFO] [stderr] 456 |             future::Either::B(self.jsonrpc_handler.handler.handle_rpc_request(call, metadata))
[INFO] [stderr] 457 |                 .map(|res| res.map(|x| serde_json::to_string(&x)
[INFO] [stderr] 458 |                     .expect("Serialization of response is infallible;qed")
[INFO] [stderr] 459 |                 ))
[INFO] [stderr] 460 |         )))
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]    --> src/lib.rs:561:15
[INFO] [stderr]     |
[INFO] [stderr] 561 | const PROOF: &'static str = "Server is always Some until self is consumed.";
[INFO] [stderr]     |              -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::const_static_lifetime)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'server_utils::tokio::reactor::Handle::current': semantics were sometimes surprising, use Handle::default()
[INFO] [stderr]    --> src/lib.rs:462:16
[INFO] [stderr]     |
[INFO] [stderr] 462 |         let handle = tokio::reactor::Handle::current();
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: this function has too many arguments (10/7)
[INFO] [stderr]   --> src/handler.rs:33:2
[INFO] [stderr]    |
[INFO] [stderr] 33 |       pub fn new(
[INFO] [stderr]    |  _____^
[INFO] [stderr] 34 | |         jsonrpc_handler: Rpc<M, S>,
[INFO] [stderr] 35 | |         cors_domains: CorsDomains,
[INFO] [stderr] 36 | |         cors_max_age: Option<u32>,
[INFO] [stderr] ...  |
[INFO] [stderr] 56 | |         }
[INFO] [stderr] 57 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::too_many_arguments)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#too_many_arguments
[INFO] [stderr] 
[INFO] [stderr] warning: large size difference between variants
[INFO] [stderr]    --> src/handler.rs:163:2
[INFO] [stderr]     |
[INFO] [stderr] 163 |       ReadingHeaders {
[INFO] [stderr]     |  _____^
[INFO] [stderr] 164 | |         request: hyper::Request<Body>,
[INFO] [stderr] 165 | |         cors_domains: CorsDomains,
[INFO] [stderr] 166 | |         cors_headers: cors::AccessControlAllowHeaders,
[INFO] [stderr] 167 | |         continue_on_invalid_cors: bool,
[INFO] [stderr] 168 | |         keep_alive: bool,
[INFO] [stderr] 169 | |     },
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::large_enum_variant)] on by default
[INFO] [stderr] help: consider boxing the large fields to reduce the total size of the enum
[INFO] [stderr]    --> src/handler.rs:163:2
[INFO] [stderr]     |
[INFO] [stderr] 163 |       ReadingHeaders {
[INFO] [stderr]     |  _____^
[INFO] [stderr] 164 | |         request: hyper::Request<Body>,
[INFO] [stderr] 165 | |         cors_domains: CorsDomains,
[INFO] [stderr] 166 | |         cors_headers: cors::AccessControlAllowHeaders,
[INFO] [stderr] 167 | |         continue_on_invalid_cors: bool,
[INFO] [stderr] 168 | |         keep_alive: bool,
[INFO] [stderr] 169 | |     },
[INFO] [stderr]     | |_____^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#large_enum_variant
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]    --> src/handler.rs:263:81
[INFO] [stderr]     |
[INFO] [stderr] 263 |                     Ok(Async::Ready(response)) => RpcPollState::Ready(RpcHandlerState::Writing(response.into())),
[INFO] [stderr]     |                                                                                                ^^^^^^^^^^^^^^^ help: consider removing `.into()`: `response`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::identity_conversion)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]    --> src/handler.rs:273:52
[INFO] [stderr]     |
[INFO] [stderr] 273 |                           RpcPollState::Ready(RpcHandlerState::Writing(match response {
[INFO] [stderr]     |  ______________________________________________________________________^
[INFO] [stderr] 274 | |                             // Notification, just return empty response.
[INFO] [stderr] 275 | |                             None => Response::ok(String::new()),
[INFO] [stderr] 276 | |                             // Add new line to have nice output when using CLI clients (curl)
[INFO] [stderr] 277 | |                             Some(result) => Response::ok(format!("{}\n", result)),
[INFO] [stderr] 278 | |                         }.into()))
[INFO] [stderr]     | |________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] help: consider removing `.into()`
[INFO] [stderr]     |
[INFO] [stderr] 273 |                         RpcPollState::Ready(RpcHandlerState::Writing(match response {
[INFO] [stderr] 274 |                             // Notification, just return empty response.
[INFO] [stderr] 275 |                             None => Response::ok(String::new()),
[INFO] [stderr] 276 |                             // Add new line to have nice output when using CLI clients (curl)
[INFO] [stderr] 277 |                             Some(result) => Response::ok(format!("{}\n", result)),
[INFO] [stderr] 278 |                         }))
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]   --> src/response.rs:45:13
[INFO] [stderr]    |
[INFO] [stderr] 45 |             content: format!("{}", msg.into()),
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `msg.into().to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::useless_format)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]   --> src/utils.rs:26:57
[INFO] [stderr]    |
[INFO] [stderr] 26 |             Value(ref val) => header::HeaderValue::from_str(val).unwrap_or(header::HeaderValue::from_static("null")),
[INFO] [stderr]    |                                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| header::HeaderValue::from_static("null"))`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/utils.rs:45:29
[INFO] [stderr]    |
[INFO] [stderr] 45 |         .flat_map(|val| val.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: identical conversion
[INFO] [stderr]   --> src/utils.rs:50:3
[INFO] [stderr]    |
[INFO] [stderr] 50 |         cors_allow_headers.into(),
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `.into()`: `cors_allow_headers`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: large size difference between variants
[INFO] [stderr]   --> src/lib.rs:64:2
[INFO] [stderr]    |
[INFO] [stderr] 64 |       Proceed {
[INFO] [stderr]    |  _____^
[INFO] [stderr] 65 | |         /// Should the request be processed even if invalid CORS headers are detected?
[INFO] [stderr] 66 | |         /// This allows for side effects to take place.
[INFO] [stderr] 67 | |         should_continue_on_invalid_cors: bool,
[INFO] [stderr] 68 | |         /// The request object returned
[INFO] [stderr] 69 | |         request: hyper::Request<Body>,
[INFO] [stderr] 70 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr] help: consider boxing the large fields to reduce the total size of the enum
[INFO] [stderr]   --> src/lib.rs:64:2
[INFO] [stderr]    |
[INFO] [stderr] 64 |       Proceed {
[INFO] [stderr]    |  _____^
[INFO] [stderr] 65 | |         /// Should the request be processed even if invalid CORS headers are detected?
[INFO] [stderr] 66 | |         /// This allows for side effects to take place.
[INFO] [stderr] 67 | |         should_continue_on_invalid_cors: bool,
[INFO] [stderr] 68 | |         /// The request object returned
[INFO] [stderr] 69 | |         request: hyper::Request<Body>,
[INFO] [stderr] 70 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#large_enum_variant
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]    --> src/lib.rs:327:26
[INFO] [stderr]     |
[INFO] [stderr] 327 |         self.allowed_headers = allowed_headers.into();
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `.into()`: `allowed_headers`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: this function has too many arguments (14/7)
[INFO] [stderr]    --> src/lib.rs:444:1
[INFO] [stderr]     |
[INFO] [stderr] 444 | / fn serve<M: jsonrpc::Metadata, S: jsonrpc::Middleware<M>>(
[INFO] [stderr] 445 | |     signals: (oneshot::Receiver<()>, mpsc::Sender<io::Result<SocketAddr>>),
[INFO] [stderr] 446 | |     executor: tokio::runtime::TaskExecutor,
[INFO] [stderr] 447 | |     addr: SocketAddr,
[INFO] [stderr] ...   |
[INFO] [stderr] 535 | |     }));
[INFO] [stderr] 536 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#too_many_arguments
[INFO] [stderr] 
[INFO] [stderr] warning: called `map(f)` on an Option value where `f` is a unit closure
[INFO] [stderr]    --> src/lib.rs:589:3
[INFO] [stderr]     |
[INFO] [stderr] 589 |            self.executor.take().map(|executors| {
[INFO] [stderr]     |   _________^
[INFO] [stderr]     |  |_________|
[INFO] [stderr]     | ||
[INFO] [stderr] 590 | ||             for executor in executors { executor.close(); }
[INFO] [stderr] 591 | ||         });
[INFO] [stderr]     | ||__________^- help: try this: `if let Some(executors) = self.executor.take() { ... }`
[INFO] [stderr]     | |___________|
[INFO] [stderr]     | 
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::option_map_unit_fn)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#option_map_unit_fn
[INFO] [stderr] 
[INFO] [stderr] warning: this function has too many arguments (10/7)
[INFO] [stderr]   --> src/handler.rs:33:2
[INFO] [stderr]    |
[INFO] [stderr] 33 |       pub fn new(
[INFO] [stderr]    |  _____^
[INFO] [stderr] 34 | |         jsonrpc_handler: Rpc<M, S>,
[INFO] [stderr] 35 | |         cors_domains: CorsDomains,
[INFO] [stderr] 36 | |         cors_max_age: Option<u32>,
[INFO] [stderr] ...  |
[INFO] [stderr] 56 | |         }
[INFO] [stderr] 57 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::too_many_arguments)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#too_many_arguments
[INFO] [stderr] 
[INFO] [stderr] warning: large size difference between variants
[INFO] [stderr]    --> src/handler.rs:163:2
[INFO] [stderr]     |
[INFO] [stderr] 163 |       ReadingHeaders {
[INFO] [stderr]     |  _____^
[INFO] [stderr] 164 | |         request: hyper::Request<Body>,
[INFO] [stderr] 165 | |         cors_domains: CorsDomains,
[INFO] [stderr] 166 | |         cors_headers: cors::AccessControlAllowHeaders,
[INFO] [stderr] 167 | |         continue_on_invalid_cors: bool,
[INFO] [stderr] 168 | |         keep_alive: bool,
[INFO] [stderr] 169 | |     },
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::large_enum_variant)] on by default
[INFO] [stderr] help: consider boxing the large fields to reduce the total size of the enum
[INFO] [stderr]    --> src/handler.rs:163:2
[INFO] [stderr]     |
[INFO] [stderr] 163 |       ReadingHeaders {
[INFO] [stderr]     |  _____^
[INFO] [stderr] 164 | |         request: hyper::Request<Body>,
[INFO] [stderr] 165 | |         cors_domains: CorsDomains,
[INFO] [stderr] 166 | |         cors_headers: cors::AccessControlAllowHeaders,
[INFO] [stderr] 167 | |         continue_on_invalid_cors: bool,
[INFO] [stderr] 168 | |         keep_alive: bool,
[INFO] [stderr] 169 | |     },
[INFO] [stderr]     | |_____^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#large_enum_variant
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]    --> src/handler.rs:263:81
[INFO] [stderr]     |
[INFO] [stderr] 263 |                     Ok(Async::Ready(response)) => RpcPollState::Ready(RpcHandlerState::Writing(response.into())),
[INFO] [stderr]     |                                                                                                ^^^^^^^^^^^^^^^ help: consider removing `.into()`: `response`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::identity_conversion)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]    --> src/handler.rs:273:52
[INFO] [stderr]     |
[INFO] [stderr] 273 |                           RpcPollState::Ready(RpcHandlerState::Writing(match response {
[INFO] [stderr]     |  ______________________________________________________________________^
[INFO] [stderr] 274 | |                             // Notification, just return empty response.
[INFO] [stderr] 275 | |                             None => Response::ok(String::new()),
[INFO] [stderr] 276 | |                             // Add new line to have nice output when using CLI clients (curl)
[INFO] [stderr] 277 | |                             Some(result) => Response::ok(format!("{}\n", result)),
[INFO] [stderr] 278 | |                         }.into()))
[INFO] [stderr]     | |________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] help: consider removing `.into()`
[INFO] [stderr]     |
[INFO] [stderr] 273 |                         RpcPollState::Ready(RpcHandlerState::Writing(match response {
[INFO] [stderr] 274 |                             // Notification, just return empty response.
[INFO] [stderr] 275 |                             None => Response::ok(String::new()),
[INFO] [stderr] 276 |                             // Add new line to have nice output when using CLI clients (curl)
[INFO] [stderr] 277 |                             Some(result) => Response::ok(format!("{}\n", result)),
[INFO] [stderr] 278 |                         }))
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]   --> src/response.rs:45:13
[INFO] [stderr]    |
[INFO] [stderr] 45 |             content: format!("{}", msg.into()),
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `msg.into().to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::useless_format)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]   --> src/utils.rs:26:57
[INFO] [stderr]    |
[INFO] [stderr] 26 |             Value(ref val) => header::HeaderValue::from_str(val).unwrap_or(header::HeaderValue::from_static("null")),
[INFO] [stderr]    |                                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| header::HeaderValue::from_static("null"))`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/utils.rs:45:29
[INFO] [stderr]    |
[INFO] [stderr] 45 |         .flat_map(|val| val.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: identical conversion
[INFO] [stderr]   --> src/utils.rs:50:3
[INFO] [stderr]    |
[INFO] [stderr] 50 |         cors_allow_headers.into(),
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `.into()`: `cors_allow_headers`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> src/tests.rs:613:4
[INFO] [stderr]     |
[INFO] [stderr] 613 |           &format!("\
[INFO] [stderr]     |  __________^
[INFO] [stderr] 614 | |             OPTIONS / HTTP/1.1\r\n\
[INFO] [stderr] 615 | |             Host: 127.0.0.1:8080\r\n\
[INFO] [stderr] 616 | |             Origin: http://parity.io\r\n\
[INFO] [stderr] ...   |
[INFO] [stderr] 620 | |             \r\n\
[INFO] [stderr] 621 | |         ")
[INFO] [stderr]     | |__________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr] help: consider using .to_string()
[INFO] [stderr]     |
[INFO] [stderr] 613 |         &"\
[INFO] [stderr] 614 |             OPTIONS / HTTP/1.1\r\n\
[INFO] [stderr] 615 |             Host: 127.0.0.1:8080\r\n\
[INFO] [stderr] 616 |             Origin: http://parity.io\r\n\
[INFO] [stderr] 617 |             Connection: close\r\n\
[INFO] [stderr] 618 |             Content-Type: application/json\r\n\
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> src/tests.rs:637:4
[INFO] [stderr]     |
[INFO] [stderr] 637 |           &format!("\
[INFO] [stderr]     |  __________^
[INFO] [stderr] 638 | |             OPTIONS / HTTP/1.1\r\n\
[INFO] [stderr] 639 | |             Host: 127.0.0.1:8080\r\n\
[INFO] [stderr] 640 | |             Origin: http://parity.io\r\n\
[INFO] [stderr] ...   |
[INFO] [stderr] 645 | |             \r\n\
[INFO] [stderr] 646 | |         ")
[INFO] [stderr]     | |__________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr] help: consider using .to_string()
[INFO] [stderr]     |
[INFO] [stderr] 637 |         &"\
[INFO] [stderr] 638 |             OPTIONS / HTTP/1.1\r\n\
[INFO] [stderr] 639 |             Host: 127.0.0.1:8080\r\n\
[INFO] [stderr] 640 |             Origin: http://parity.io\r\n\
[INFO] [stderr] 641 |             Content-Length: 0\r\n\
[INFO] [stderr] 642 |             Content-Type: application/json\r\n\
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> src/tests.rs:726:4
[INFO] [stderr]     |
[INFO] [stderr] 726 |           &format!("\
[INFO] [stderr]     |  __________^
[INFO] [stderr] 727 | |             POST / HTTP/1.1\r\n\
[INFO] [stderr] 728 | |             Host: 127.0.0.1:8080\r\n\
[INFO] [stderr] 729 | |             Origin: http://parity.io\r\n\
[INFO] [stderr] ...   |
[INFO] [stderr] 734 | |             \r\n\
[INFO] [stderr] 735 | |         ")
[INFO] [stderr]     | |__________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr] help: consider using .to_string()
[INFO] [stderr]     |
[INFO] [stderr] 726 |         &"\
[INFO] [stderr] 727 |             POST / HTTP/1.1\r\n\
[INFO] [stderr] 728 |             Host: 127.0.0.1:8080\r\n\
[INFO] [stderr] 729 |             Origin: http://parity.io\r\n\
[INFO] [stderr] 730 |             Content-Length: 0\r\n\
[INFO] [stderr] 731 |             Content-Type: application/json\r\n\
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/tests.rs:751:13
[INFO] [stderr]     |
[INFO] [stderr] 751 |     let addr = server.address().clone();
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*server.address()`
[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: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/tests.rs:781:13
[INFO] [stderr]     |
[INFO] [stderr] 781 |     let addr = server.address().clone();
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*server.address()`
[INFO] [stderr]     |
[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: useless use of `format!`
[INFO] [stderr]    --> src/tests.rs:815:4
[INFO] [stderr]     |
[INFO] [stderr] 815 |           &format!("\
[INFO] [stderr]     |  __________^
[INFO] [stderr] 816 | |             OPTIONS / HTTP/1.1\r\n\
[INFO] [stderr] 817 | |             Host: 127.0.0.1:8080\r\n\
[INFO] [stderr] 818 | |             Origin: http://parity.io\r\n\
[INFO] [stderr] ...   |
[INFO] [stderr] 823 | |             \r\n\
[INFO] [stderr] 824 | |         ")
[INFO] [stderr]     | |__________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr] help: consider using .to_string()
[INFO] [stderr]     |
[INFO] [stderr] 815 |         &"\
[INFO] [stderr] 816 |             OPTIONS / HTTP/1.1\r\n\
[INFO] [stderr] 817 |             Host: 127.0.0.1:8080\r\n\
[INFO] [stderr] 818 |             Origin: http://parity.io\r\n\
[INFO] [stderr] 819 |             Content-Length: 0\r\n\
[INFO] [stderr] 820 |             Content-Type: application/json\r\n\
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> src/tests.rs:873:4
[INFO] [stderr]     |
[INFO] [stderr] 873 |           &format!("\
[INFO] [stderr]     |  __________^
[INFO] [stderr] 874 | |             OPTIONS / HTTP/1.1\r\n\
[INFO] [stderr] 875 | |             Host: 127.0.0.1:8080\r\n\
[INFO] [stderr] 876 | |             Origin: http://parity.io\r\n\
[INFO] [stderr] ...   |
[INFO] [stderr] 881 | |             \r\n\
[INFO] [stderr] 882 | |         ")
[INFO] [stderr]     | |__________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr] help: consider using .to_string()
[INFO] [stderr]     |
[INFO] [stderr] 873 |         &"\
[INFO] [stderr] 874 |             OPTIONS / HTTP/1.1\r\n\
[INFO] [stderr] 875 |             Host: 127.0.0.1:8080\r\n\
[INFO] [stderr] 876 |             Origin: http://parity.io\r\n\
[INFO] [stderr] 877 |             Content-Length: 0\r\n\
[INFO] [stderr] 878 |             Content-Type: application/json\r\n\
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> src/tests.rs:900:4
[INFO] [stderr]     |
[INFO] [stderr] 900 |           &format!("\
[INFO] [stderr]     |  __________^
[INFO] [stderr] 901 | |             OPTIONS / HTTP/1.1\r\n\
[INFO] [stderr] 902 | |             Host: 127.0.0.1:8080\r\n\
[INFO] [stderr] 903 | |             Origin: http://parity.io\r\n\
[INFO] [stderr] ...   |
[INFO] [stderr] 908 | |             \r\n\
[INFO] [stderr] 909 | |         ")
[INFO] [stderr]     | |__________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr] help: consider using .to_string()
[INFO] [stderr]     |
[INFO] [stderr] 900 |         &"\
[INFO] [stderr] 901 |             OPTIONS / HTTP/1.1\r\n\
[INFO] [stderr] 902 |             Host: 127.0.0.1:8080\r\n\
[INFO] [stderr] 903 |             Origin: http://parity.io\r\n\
[INFO] [stderr] 904 |             Content-Length: 0\r\n\
[INFO] [stderr] 905 |             Content-Type: application/json\r\n\
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/tests.rs:946:13
[INFO] [stderr]     |
[INFO] [stderr] 946 |     let addr = server.address().clone();
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*server.address()`
[INFO] [stderr]     |
[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: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/tests.rs:971:13
[INFO] [stderr]     |
[INFO] [stderr] 971 |     let addr = server.address().clone();
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*server.address()`
[INFO] [stderr]     |
[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: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/tests.rs:996:13
[INFO] [stderr]     |
[INFO] [stderr] 996 |     let addr = server.address().clone();
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*server.address()`
[INFO] [stderr]     |
[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: using `clone` on a `Copy` type
[INFO] [stderr]     --> src/tests.rs:1021:13
[INFO] [stderr]      |
[INFO] [stderr] 1021 |     let addr = server.address().clone();
[INFO] [stderr]      |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*server.address()`
[INFO] [stderr]      |
[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: using `clone` on a `Copy` type
[INFO] [stderr]     --> src/tests.rs:1046:13
[INFO] [stderr]      |
[INFO] [stderr] 1046 |     let addr = server.address().clone();
[INFO] [stderr]      |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*server.address()`
[INFO] [stderr]      |
[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: using `clone` on a `Copy` type
[INFO] [stderr]     --> src/tests.rs:1071:13
[INFO] [stderr]      |
[INFO] [stderr] 1071 |     let addr = server.address().clone();
[INFO] [stderr]      |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*server.address()`
[INFO] [stderr]      |
[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: using `clone` on a `Copy` type
[INFO] [stderr]     --> src/tests.rs:1096:13
[INFO] [stderr]      |
[INFO] [stderr] 1096 |     let addr = server.address().clone();
[INFO] [stderr]      |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*server.address()`
[INFO] [stderr]      |
[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: using `clone` on a `Copy` type
[INFO] [stderr]     --> src/tests.rs:1121:13
[INFO] [stderr]      |
[INFO] [stderr] 1121 |     let addr = server.address().clone();
[INFO] [stderr]      |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*server.address()`
[INFO] [stderr]      |
[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: using `clone` on a `Copy` type
[INFO] [stderr]     --> src/tests.rs:1145:13
[INFO] [stderr]      |
[INFO] [stderr] 1145 |     let addr = server.address().clone();
[INFO] [stderr]      |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*server.address()`
[INFO] [stderr]      |
[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: using `clone` on a `Copy` type
[INFO] [stderr]     --> src/tests.rs:1172:13
[INFO] [stderr]      |
[INFO] [stderr] 1172 |     let addr = server.address().clone();
[INFO] [stderr]      |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*server.address()`
[INFO] [stderr]      |
[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: using `clone` on a `Copy` type
[INFO] [stderr]     --> src/tests.rs:1198:13
[INFO] [stderr]      |
[INFO] [stderr] 1198 |     let addr = server.address().clone();
[INFO] [stderr]      |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*server.address()`
[INFO] [stderr]      |
[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: large size difference between variants
[INFO] [stderr]   --> src/lib.rs:64:2
[INFO] [stderr]    |
[INFO] [stderr] 64 |       Proceed {
[INFO] [stderr]    |  _____^
[INFO] [stderr] 65 | |         /// Should the request be processed even if invalid CORS headers are detected?
[INFO] [stderr] 66 | |         /// This allows for side effects to take place.
[INFO] [stderr] 67 | |         should_continue_on_invalid_cors: bool,
[INFO] [stderr] 68 | |         /// The request object returned
[INFO] [stderr] 69 | |         request: hyper::Request<Body>,
[INFO] [stderr] 70 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr] help: consider boxing the large fields to reduce the total size of the enum
[INFO] [stderr]   --> src/lib.rs:64:2
[INFO] [stderr]    |
[INFO] [stderr] 64 |       Proceed {
[INFO] [stderr]    |  _____^
[INFO] [stderr] 65 | |         /// Should the request be processed even if invalid CORS headers are detected?
[INFO] [stderr] 66 | |         /// This allows for side effects to take place.
[INFO] [stderr] 67 | |         should_continue_on_invalid_cors: bool,
[INFO] [stderr] 68 | |         /// The request object returned
[INFO] [stderr] 69 | |         request: hyper::Request<Body>,
[INFO] [stderr] 70 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#large_enum_variant
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]    --> src/lib.rs:327:26
[INFO] [stderr]     |
[INFO] [stderr] 327 |         self.allowed_headers = allowed_headers.into();
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `.into()`: `allowed_headers`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: this function has too many arguments (14/7)
[INFO] [stderr]    --> src/lib.rs:444:1
[INFO] [stderr]     |
[INFO] [stderr] 444 | / fn serve<M: jsonrpc::Metadata, S: jsonrpc::Middleware<M>>(
[INFO] [stderr] 445 | |     signals: (oneshot::Receiver<()>, mpsc::Sender<io::Result<SocketAddr>>),
[INFO] [stderr] 446 | |     executor: tokio::runtime::TaskExecutor,
[INFO] [stderr] 447 | |     addr: SocketAddr,
[INFO] [stderr] ...   |
[INFO] [stderr] 535 | |     }));
[INFO] [stderr] 536 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#too_many_arguments
[INFO] [stderr] 
[INFO] [stderr] warning: called `map(f)` on an Option value where `f` is a unit closure
[INFO] [stderr]    --> src/lib.rs:589:3
[INFO] [stderr]     |
[INFO] [stderr] 589 |            self.executor.take().map(|executors| {
[INFO] [stderr]     |   _________^
[INFO] [stderr]     |  |_________|
[INFO] [stderr]     | ||
[INFO] [stderr] 590 | ||             for executor in executors { executor.close(); }
[INFO] [stderr] 591 | ||         });
[INFO] [stderr]     | ||__________^- help: try this: `if let Some(executors) = self.executor.take() { ... }`
[INFO] [stderr]     | |___________|
[INFO] [stderr]     | 
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::option_map_unit_fn)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#option_map_unit_fn
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.27s
[INFO] running `"docker" "inspect" "227e802c08dbcb6213c59b6d9f15121df6b8c2b330f0b828309656ba96625842"`
[INFO] running `"docker" "rm" "-f" "227e802c08dbcb6213c59b6d9f15121df6b8c2b330f0b828309656ba96625842"`
[INFO] [stdout] 227e802c08dbcb6213c59b6d9f15121df6b8c2b330f0b828309656ba96625842