[INFO] crate ws 0.7.9 is already in cache
[INFO] extracting crate ws 0.7.9 into work/ex/clippy-test-run/sources/stable/reg/ws/0.7.9
[INFO] extracting crate ws 0.7.9 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/ws/0.7.9
[INFO] validating manifest of ws-0.7.9 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 ws-0.7.9 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 ws-0.7.9
[INFO] finished frobbing ws-0.7.9
[INFO] frobbed toml for ws-0.7.9 written to work/ex/clippy-test-run/sources/stable/reg/ws/0.7.9/Cargo.toml
[INFO] started frobbing ws-0.7.9
[INFO] finished frobbing ws-0.7.9
[INFO] frobbed toml for ws-0.7.9 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/ws/0.7.9/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 ws-0.7.9 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-5/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/ws/0.7.9:/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] 7a6427f374f5b48d18a3a436b7bd1e1283bbd432c7e4c6984988321985410ac6
[INFO] running `"docker" "start" "-a" "7a6427f374f5b48d18a3a436b7bd1e1283bbd432c7e4c6984988321985410ac6"`
[INFO] [stderr]     Checking term v0.5.1
[INFO] [stderr]     Checking mio-extras v2.0.5
[INFO] [stderr]     Checking ws v0.7.9 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/handshake.rs:380:13
[INFO] [stderr]     |
[INFO] [stderr] 380 |             headers: headers,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^ help: replace it with: `headers`
[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: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]    --> src/handshake.rs:393:9
[INFO] [stderr]     |
[INFO] [stderr] 393 |         write!(w, "{} {} HTTP/1.1\r\n", self.method, self.path)?;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::write_with_newline)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]    --> src/handshake.rs:397:13
[INFO] [stderr]     |
[INFO] [stderr] 397 |             write!(w, "\r\n")?;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]    --> src/handshake.rs:399:9
[INFO] [stderr]     |
[INFO] [stderr] 399 |         write!(w, "\r\n")?;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]    --> src/handshake.rs:634:9
[INFO] [stderr]     |
[INFO] [stderr] 634 |         write!(w, "HTTP/1.1 {} {}\r\n", self.status, self.reason)?;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]    --> src/handshake.rs:638:13
[INFO] [stderr]     |
[INFO] [stderr] 638 |             write!(w, "\r\n")?;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]    --> src/handshake.rs:640:9
[INFO] [stderr]     |
[INFO] [stderr] 640 |         write!(w, "\r\n")?;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/stream.rs:201:33
[INFO] [stderr]     |
[INFO] [stderr] 201 |                                 negotiating: negotiating,
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `negotiating`
[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/stream.rs:271:33
[INFO] [stderr]     |
[INFO] [stderr] 271 |                                 negotiating: negotiating,
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `negotiating`
[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/handshake.rs:380:13
[INFO] [stderr]     |
[INFO] [stderr] 380 |             headers: headers,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^ help: replace it with: `headers`
[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: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]    --> src/handshake.rs:393:9
[INFO] [stderr]     |
[INFO] [stderr] 393 |         write!(w, "{} {} HTTP/1.1\r\n", self.method, self.path)?;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::write_with_newline)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]    --> src/handshake.rs:397:13
[INFO] [stderr]     |
[INFO] [stderr] 397 |             write!(w, "\r\n")?;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]    --> src/handshake.rs:399:9
[INFO] [stderr]     |
[INFO] [stderr] 399 |         write!(w, "\r\n")?;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]    --> src/handshake.rs:634:9
[INFO] [stderr]     |
[INFO] [stderr] 634 |         write!(w, "HTTP/1.1 {} {}\r\n", self.status, self.reason)?;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]    --> src/handshake.rs:638:13
[INFO] [stderr]     |
[INFO] [stderr] 638 |             write!(w, "\r\n")?;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]    --> src/handshake.rs:640:9
[INFO] [stderr]     |
[INFO] [stderr] 640 |         write!(w, "\r\n")?;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/stream.rs:201:33
[INFO] [stderr]     |
[INFO] [stderr] 201 |                                 negotiating: negotiating,
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `negotiating`
[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/stream.rs:271:33
[INFO] [stderr]     |
[INFO] [stderr] 271 |                                 negotiating: negotiating,
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `negotiating`
[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: this if statement can be collapsed
[INFO] [stderr]    --> src/connection.rs:502:21
[INFO] [stderr]     |
[INFO] [stderr] 502 | /                     if self.socket.try_write_buf(res)?.is_some() {
[INFO] [stderr] 503 | |                         if res.position() as usize == res.get_ref().len() {
[INFO] [stderr] 504 | |                             done = true
[INFO] [stderr] 505 | |                         }
[INFO] [stderr] 506 | |                     }
[INFO] [stderr]     | |_____________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 502 |                     if self.socket.try_write_buf(res)?.is_some() && res.position() as usize == res.get_ref().len() {
[INFO] [stderr] 503 |     done = true
[INFO] [stderr] 504 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]    --> src/connection.rs:512:21
[INFO] [stderr]     |
[INFO] [stderr] 512 | /                     if self.socket.try_write_buf(req)?.is_some() {
[INFO] [stderr] 513 | |                         if req.position() as usize == req.get_ref().len() {
[INFO] [stderr] 514 | |                             trace!(
[INFO] [stderr] 515 | |                                 "Finished writing handshake request to {}",
[INFO] [stderr] ...   |
[INFO] [stderr] 523 | |                         }
[INFO] [stderr] 524 | |                     }
[INFO] [stderr]     | |_____________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 512 |                     if self.socket.try_write_buf(req)?.is_some() && req.position() as usize == req.get_ref().len() {
[INFO] [stderr] 513 |     trace!(
[INFO] [stderr] 514 |         "Finished writing handshake request to {}",
[INFO] [stderr] 515 |         self.socket
[INFO] [stderr] 516 |             .peer_addr()
[INFO] [stderr] 517 |             .map(|addr| addr.to_string())
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/connection.rs:732:24
[INFO] [stderr]     |
[INFO] [stderr] 732 |                   } else {
[INFO] [stderr]     |  ________________________^
[INFO] [stderr] 733 | |                     if self.is_server() {
[INFO] [stderr] 734 | |                         return Err(Error::new(
[INFO] [stderr] 735 | |                             Kind::Protocol,
[INFO] [stderr] ...   |
[INFO] [stderr] 738 | |                     }
[INFO] [stderr] 739 | |                 }
[INFO] [stderr]     | |_________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 732 |                 } else if self.is_server() {
[INFO] [stderr] 733 |     return Err(Error::new(
[INFO] [stderr] 734 |         Kind::Protocol,
[INFO] [stderr] 735 |         "Received unmasked frame from a client endpoint.",
[INFO] [stderr] 736 |     ));
[INFO] [stderr] 737 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/connection.rs:945:24
[INFO] [stderr]     |
[INFO] [stderr] 945 |                   } else {
[INFO] [stderr]     |  ________________________^
[INFO] [stderr] 946 | |                     if frame.is_control() {
[INFO] [stderr] 947 | |                         return Err(Error::new(
[INFO] [stderr] 948 | |                             Kind::Protocol,
[INFO] [stderr] ...   |
[INFO] [stderr] 960 | |                     }
[INFO] [stderr] 961 | |                 }
[INFO] [stderr]     | |_________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 945 |                 } else if frame.is_control() {
[INFO] [stderr] 946 |     return Err(Error::new(
[INFO] [stderr] 947 |         Kind::Protocol,
[INFO] [stderr] 948 |         "Encounted fragmented control frame.",
[INFO] [stderr] 949 |     ));
[INFO] [stderr] 950 | } else {
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/connection.rs:853:40
[INFO] [stderr]     |
[INFO] [stderr] 853 |                                   } else {
[INFO] [stderr]     |  ________________________________________^
[INFO] [stderr] 854 | |                                     if !self.state.is_closing() {
[INFO] [stderr] 855 | |                                         if has_reason {
[INFO] [stderr] 856 | |                                             self.send_close(named, "")?; // note this drops any extra close data
[INFO] [stderr] ...   |
[INFO] [stderr] 862 | |                                     }
[INFO] [stderr] 863 | |                                 }
[INFO] [stderr]     | |_________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 853 |                                 } else if !self.state.is_closing() {
[INFO] [stderr] 854 |     if has_reason {
[INFO] [stderr] 855 |         self.send_close(named, "")?; // note this drops any extra close data
[INFO] [stderr] 856 |     } else {
[INFO] [stderr] 857 |         self.send_close(CloseCode::Invalid, "")?;
[INFO] [stderr] 858 |     }
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]    --> src/connection.rs:502:21
[INFO] [stderr]     |
[INFO] [stderr] 502 | /                     if self.socket.try_write_buf(res)?.is_some() {
[INFO] [stderr] 503 | |                         if res.position() as usize == res.get_ref().len() {
[INFO] [stderr] 504 | |                             done = true
[INFO] [stderr] 505 | |                         }
[INFO] [stderr] 506 | |                     }
[INFO] [stderr]     | |_____________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 502 |                     if self.socket.try_write_buf(res)?.is_some() && res.position() as usize == res.get_ref().len() {
[INFO] [stderr] 503 |     done = true
[INFO] [stderr] 504 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]    --> src/connection.rs:512:21
[INFO] [stderr]     |
[INFO] [stderr] 512 | /                     if self.socket.try_write_buf(req)?.is_some() {
[INFO] [stderr] 513 | |                         if req.position() as usize == req.get_ref().len() {
[INFO] [stderr] 514 | |                             trace!(
[INFO] [stderr] 515 | |                                 "Finished writing handshake request to {}",
[INFO] [stderr] ...   |
[INFO] [stderr] 523 | |                         }
[INFO] [stderr] 524 | |                     }
[INFO] [stderr]     | |_____________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 512 |                     if self.socket.try_write_buf(req)?.is_some() && req.position() as usize == req.get_ref().len() {
[INFO] [stderr] 513 |     trace!(
[INFO] [stderr] 514 |         "Finished writing handshake request to {}",
[INFO] [stderr] 515 |         self.socket
[INFO] [stderr] 516 |             .peer_addr()
[INFO] [stderr] 517 |             .map(|addr| addr.to_string())
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/connection.rs:732:24
[INFO] [stderr]     |
[INFO] [stderr] 732 |                   } else {
[INFO] [stderr]     |  ________________________^
[INFO] [stderr] 733 | |                     if self.is_server() {
[INFO] [stderr] 734 | |                         return Err(Error::new(
[INFO] [stderr] 735 | |                             Kind::Protocol,
[INFO] [stderr] ...   |
[INFO] [stderr] 738 | |                     }
[INFO] [stderr] 739 | |                 }
[INFO] [stderr]     | |_________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 732 |                 } else if self.is_server() {
[INFO] [stderr] 733 |     return Err(Error::new(
[INFO] [stderr] 734 |         Kind::Protocol,
[INFO] [stderr] 735 |         "Received unmasked frame from a client endpoint.",
[INFO] [stderr] 736 |     ));
[INFO] [stderr] 737 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/connection.rs:945:24
[INFO] [stderr]     |
[INFO] [stderr] 945 |                   } else {
[INFO] [stderr]     |  ________________________^
[INFO] [stderr] 946 | |                     if frame.is_control() {
[INFO] [stderr] 947 | |                         return Err(Error::new(
[INFO] [stderr] 948 | |                             Kind::Protocol,
[INFO] [stderr] ...   |
[INFO] [stderr] 960 | |                     }
[INFO] [stderr] 961 | |                 }
[INFO] [stderr]     | |_________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 945 |                 } else if frame.is_control() {
[INFO] [stderr] 946 |     return Err(Error::new(
[INFO] [stderr] 947 |         Kind::Protocol,
[INFO] [stderr] 948 |         "Encounted fragmented control frame.",
[INFO] [stderr] 949 |     ));
[INFO] [stderr] 950 | } else {
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/connection.rs:853:40
[INFO] [stderr]     |
[INFO] [stderr] 853 |                                   } else {
[INFO] [stderr]     |  ________________________________________^
[INFO] [stderr] 854 | |                                     if !self.state.is_closing() {
[INFO] [stderr] 855 | |                                         if has_reason {
[INFO] [stderr] 856 | |                                             self.send_close(named, "")?; // note this drops any extra close data
[INFO] [stderr] ...   |
[INFO] [stderr] 862 | |                                     }
[INFO] [stderr] 863 | |                                 }
[INFO] [stderr]     | |_________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 853 |                                 } else if !self.state.is_closing() {
[INFO] [stderr] 854 |     if has_reason {
[INFO] [stderr] 855 |         self.send_close(named, "")?; // note this drops any extra close data
[INFO] [stderr] 856 |     } else {
[INFO] [stderr] 857 |         self.send_close(CloseCode::Invalid, "")?;
[INFO] [stderr] 858 |     }
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: You matched a field with a wildcard pattern. Consider using `..` instead
[INFO] [stderr]    --> src/io.rs:970:17
[INFO] [stderr]     |
[INFO] [stderr] 970 |                 details: _,
[INFO] [stderr]     |                 ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unneeded_field_pattern)] on by default
[INFO] [stderr]     = help: Try with `Error { kind: Kind::Internal, .. }`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_field_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: You matched a field with a wildcard pattern. Consider using `..` instead
[INFO] [stderr]    --> src/io.rs:979:17
[INFO] [stderr]     |
[INFO] [stderr] 979 |                 details: _,
[INFO] [stderr]     |                 ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Try with `Error { kind: Kind::Io(_), .. }`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_field_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: the function has a cyclomatic complexity of 29
[INFO] [stderr]    --> src/connection.rs:716:5
[INFO] [stderr]     |
[INFO] [stderr] 716 | /     fn read_frames(&mut self) -> Result<()> {
[INFO] [stderr] 717 | |         while let Some(mut frame) = Frame::parse(&mut self.in_buffer)? {
[INFO] [stderr] 718 | |             match self.state {
[INFO] [stderr] 719 | |                 // Ignore data received after receiving close frame
[INFO] [stderr] ...   |
[INFO] [stderr] 964 | |         Ok(())
[INFO] [stderr] 965 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cyclomatic_complexity)] on by default
[INFO] [stderr]     = help: you could split it up into multiple smaller functions
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cyclomatic_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/frame.rs:12:37
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn apply_mask(buf: &mut [u8], mask: &[u8; 4]) {
[INFO] [stderr]    |                                     ^^^^^^^^ help: consider passing by value instead: `[u8; 4]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: called `map(f)` on an Option value where `f` is a unit closure
[INFO] [stderr]    --> src/frame.rs:179:9
[INFO] [stderr]     |
[INFO] [stderr] 179 | /         self.mask
[INFO] [stderr] 180 | |             .take()
[INFO] [stderr] 181 | |             .map(|mask| apply_mask(&mut self.payload, &mask));
[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] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 179 |         if let Some(mask) = self.mask
[INFO] [stderr] 180 |             .take() { apply_mask(&mut self.payload, &mask) }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: the function has a cyclomatic complexity of 30
[INFO] [stderr]    --> src/io.rs:600:5
[INFO] [stderr]     |
[INFO] [stderr] 600 | /     fn handle_event(&mut self, poll: &mut Poll, token: Token, events: Ready) {
[INFO] [stderr] 601 | |         match token {
[INFO] [stderr] 602 | |             SYSTEM => {
[INFO] [stderr] 603 | |                 debug_assert!(false, "System token used for io event. This is a bug!");
[INFO] [stderr] ...   |
[INFO] [stderr] 733 | |         }
[INFO] [stderr] 734 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: you could split it up into multiple smaller functions
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cyclomatic_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: the function has a cyclomatic complexity of 50
[INFO] [stderr]    --> src/io.rs:736:5
[INFO] [stderr]     |
[INFO] [stderr] 736 | /     fn handle_queue(&mut self, poll: &mut Poll, cmd: Command) {
[INFO] [stderr] 737 | |         match cmd.token() {
[INFO] [stderr] 738 | |             SYSTEM => {
[INFO] [stderr] 739 | |                 // Scaffolding for system events such as internal timeouts
[INFO] [stderr] ...   |
[INFO] [stderr] 924 | |         }
[INFO] [stderr] 925 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: you could split it up into multiple smaller functions
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cyclomatic_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/protocol.rs:26:23
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn is_control(&self) -> bool {
[INFO] [stderr]    |                       ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: the function has a cyclomatic complexity of 29
[INFO] [stderr]    --> src/connection.rs:716:5
[INFO] [stderr]     |
[INFO] [stderr] 716 | /     fn read_frames(&mut self) -> Result<()> {
[INFO] [stderr] 717 | |         while let Some(mut frame) = Frame::parse(&mut self.in_buffer)? {
[INFO] [stderr] 718 | |             match self.state {
[INFO] [stderr] 719 | |                 // Ignore data received after receiving close frame
[INFO] [stderr] ...   |
[INFO] [stderr] 964 | |         Ok(())
[INFO] [stderr] 965 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cyclomatic_complexity)] on by default
[INFO] [stderr]     = help: you could split it up into multiple smaller functions
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cyclomatic_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/frame.rs:12:37
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn apply_mask(buf: &mut [u8], mask: &[u8; 4]) {
[INFO] [stderr]    |                                     ^^^^^^^^ help: consider passing by value instead: `[u8; 4]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: called `map(f)` on an Option value where `f` is a unit closure
[INFO] [stderr]    --> src/frame.rs:179:9
[INFO] [stderr]     |
[INFO] [stderr] 179 | /         self.mask
[INFO] [stderr] 180 | |             .take()
[INFO] [stderr] 181 | |             .map(|mask| apply_mask(&mut self.payload, &mask));
[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] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 179 |         if let Some(mask) = self.mask
[INFO] [stderr] 180 |             .take() { apply_mask(&mut self.payload, &mask) }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> examples/ssl-server.rs:103:13
[INFO] [stderr]     |
[INFO] [stderr] 103 |             out: out,
[INFO] [stderr]     |             ^^^^^^^^ help: replace it with: `out`
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]    --> src/handler.rs:385:20
[INFO] [stderr]     |
[INFO] [stderr] 385 |                   Ok(assert_eq!(
[INFO] [stderr]     |  ____________________^
[INFO] [stderr] 386 | |                     msg,
[INFO] [stderr] 387 | |                     message::Message::Text(String::from("testme"))
[INFO] [stderr] 388 | |                 ))
[INFO] [stderr]     | |_________________^
[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]     |
[INFO] [stderr]     = note: #[warn(clippy::unit_arg)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg
[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: the function has a cyclomatic complexity of 30
[INFO] [stderr]    --> src/io.rs:600:5
[INFO] [stderr]     |
[INFO] [stderr] 600 | /     fn handle_event(&mut self, poll: &mut Poll, token: Token, events: Ready) {
[INFO] [stderr] 601 | |         match token {
[INFO] [stderr] 602 | |             SYSTEM => {
[INFO] [stderr] 603 | |                 debug_assert!(false, "System token used for io event. This is a bug!");
[INFO] [stderr] ...   |
[INFO] [stderr] 733 | |         }
[INFO] [stderr] 734 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: you could split it up into multiple smaller functions
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cyclomatic_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: the function has a cyclomatic complexity of 50
[INFO] [stderr]    --> src/io.rs:736:5
[INFO] [stderr]     |
[INFO] [stderr] 736 | /     fn handle_queue(&mut self, poll: &mut Poll, cmd: Command) {
[INFO] [stderr] 737 | |         match cmd.token() {
[INFO] [stderr] 738 | |             SYSTEM => {
[INFO] [stderr] 739 | |                 // Scaffolding for system events such as internal timeouts
[INFO] [stderr] ...   |
[INFO] [stderr] 924 | |         }
[INFO] [stderr] 925 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: you could split it up into multiple smaller functions
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cyclomatic_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/io.rs:962:17
[INFO] [stderr]     |
[INFO] [stderr] 962 |         assert!(url_to_addrs(&ws_url).unwrap().len() > 0);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!url_to_addrs(&ws_url).unwrap().is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/io.rs:964:17
[INFO] [stderr]     |
[INFO] [stderr] 964 |         assert!(url_to_addrs(&wss_url).unwrap().len() > 0);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!url_to_addrs(&wss_url).unwrap().is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> src/message.rs:144:31
[INFO] [stderr]     |
[INFO] [stderr] 144 |         let t = Message::text(format!("test"));
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^ help: consider using .to_string(): `"test".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] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/protocol.rs:26:23
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn is_control(&self) -> bool {
[INFO] [stderr]    |                       ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.59s
[INFO] running `"docker" "inspect" "7a6427f374f5b48d18a3a436b7bd1e1283bbd432c7e4c6984988321985410ac6"`
[INFO] running `"docker" "rm" "-f" "7a6427f374f5b48d18a3a436b7bd1e1283bbd432c7e4c6984988321985410ac6"`
[INFO] [stdout] 7a6427f374f5b48d18a3a436b7bd1e1283bbd432c7e4c6984988321985410ac6