[INFO] crate udt 0.2.0 is already in cache
[INFO] extracting crate udt 0.2.0 into work/ex/clippy-test-run/sources/stable/reg/udt/0.2.0
[INFO] extracting crate udt 0.2.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/udt/0.2.0
[INFO] validating manifest of udt-0.2.0 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 udt-0.2.0 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 udt-0.2.0
[INFO] removed path dependency libudt4-sys from udt-0.2.0
[INFO] finished frobbing udt-0.2.0
[INFO] frobbed toml for udt-0.2.0 written to work/ex/clippy-test-run/sources/stable/reg/udt/0.2.0/Cargo.toml
[INFO] started frobbing udt-0.2.0
[INFO] removed path dependency libudt4-sys from udt-0.2.0
[INFO] finished frobbing udt-0.2.0
[INFO] frobbed toml for udt-0.2.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/udt/0.2.0/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 udt-0.2.0 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-4/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/udt/0.2.0:/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] 6c418c82d7935149ac7255cffbd8af0c70373c46d92dca3aef0b6dc71c786e21
[INFO] running `"docker" "start" "-a" "6c418c82d7935149ac7255cffbd8af0c70373c46d92dca3aef0b6dc71c786e21"`
[INFO] [stderr]    Compiling libudt4-sys v0.2.0
[INFO] [stderr]     Checking udt v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]    --> src/lib.rs:415:17
[INFO] [stderr]     |
[INFO] [stderr] 415 |             let a: u8 = ((ip & 0xff)) as u8;
[INFO] [stderr]     |                 ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::many_single_char_names)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]    --> src/lib.rs:415:17
[INFO] [stderr]     |
[INFO] [stderr] 415 |             let a: u8 = ((ip & 0xff)) as u8;
[INFO] [stderr]     |                 ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::many_single_char_names)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/lib.rs:412:32
[INFO] [stderr]     |
[INFO] [stderr] 412 |             let d: u8 = ((ip & 0xff000000) >> 24) as u8;
[INFO] [stderr]     |                                ^^^^^^^^^^ help: consider: `0xff00_0000`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/lib.rs:413:32
[INFO] [stderr]     |
[INFO] [stderr] 413 |             let c: u8 = ((ip & 0xff0000) >> 16) as u8;
[INFO] [stderr]     |                                ^^^^^^^^ help: consider: `0x00ff_0000`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: Consider removing unnecessary double parentheses
[INFO] [stderr]    --> src/lib.rs:415:25
[INFO] [stderr]     |
[INFO] [stderr] 415 |             let a: u8 = ((ip & 0xff)) as u8;
[INFO] [stderr]     |                         ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::double_parens)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#double_parens
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/lib.rs:412:32
[INFO] [stderr]     |
[INFO] [stderr] 412 |             let d: u8 = ((ip & 0xff000000) >> 24) as u8;
[INFO] [stderr]     |                                ^^^^^^^^^^ help: consider: `0xff00_0000`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/lib.rs:413:32
[INFO] [stderr]     |
[INFO] [stderr] 413 |             let c: u8 = ((ip & 0xff0000) >> 16) as u8;
[INFO] [stderr]     |                                ^^^^^^^^ help: consider: `0x00ff_0000`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: Consider removing unnecessary double parentheses
[INFO] [stderr]    --> src/lib.rs:415:25
[INFO] [stderr]     |
[INFO] [stderr] 415 |             let a: u8 = ((ip & 0xff)) as u8;
[INFO] [stderr]     |                         ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::double_parens)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#double_parens
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:344:28
[INFO] [stderr]     |
[INFO] [stderr] 344 |         let addr_b: u32 = ((addr_bytes[3] as u32) << 24)  + 
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(addr_bytes[3])`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:345:14
[INFO] [stderr]     |
[INFO] [stderr] 345 |             ((addr_bytes[2] as u32) << 16)  + 
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(addr_bytes[2])`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:346:14
[INFO] [stderr]     |
[INFO] [stderr] 346 |             ((addr_bytes[1] as u32) << 8 )  + 
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(addr_bytes[1])`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:347:13
[INFO] [stderr]     |
[INFO] [stderr] 347 |             ( addr_bytes[0] as u32);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(addr_bytes[0])`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u16 to i32 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:406:20
[INFO] [stderr]     |
[INFO] [stderr] 406 |     let fam: i32 = s.sa_family as i32;
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^ help: try: `i32::from(s.sa_family)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:477:17
[INFO] [stderr]     |
[INFO] [stderr] 477 |     pub fn bind(&self, name: std::net::SocketAddr) -> Result<(), UdtError> {
[INFO] [stderr]     |                 ^^^^^ help: consider passing by value instead: `self`
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:506:22
[INFO] [stderr]     |
[INFO] [stderr] 506 |     pub fn bind_from(&self, other: std::net::UdpSocket) -> Result<(), UdtError> {
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:542:20
[INFO] [stderr]     |
[INFO] [stderr] 542 |     pub fn connect(&self, name: std::net::SocketAddr) -> Result<(), UdtError> {
[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: unreachable expression
[INFO] [stderr]     --> src/lib.rs:1057:76
[INFO] [stderr]      |
[INFO] [stderr] 1057 |     sock.bind(SocketAddr::V4(SocketAddrV4::new(localhost, 0))).or_else(|e| Err(panic!("Failed to bind to {:?} --> {:?}", localhost, e)));
[INFO] [stderr]      |                                                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: #[warn(unreachable_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:566:19
[INFO] [stderr]     |
[INFO] [stderr] 566 |     pub fn listen(&self, backlog: i32) -> Result<(), UdtError> {
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:592:19
[INFO] [stderr]     |
[INFO] [stderr] 592 |     pub fn accept(&self) -> Result<(UdtSocket, SocketAddr), UdtError> {
[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: unreachable expression
[INFO] [stderr]     --> src/lib.rs:1078:76
[INFO] [stderr]      |
[INFO] [stderr] 1078 |     sock.bind(SocketAddr::V4(SocketAddrV4::new(localhost, 0))).or_else(|e| Err(panic!("Failed to bind to {:?} --> {:?}", localhost, e)));
[INFO] [stderr]      |                                                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:639:24
[INFO] [stderr]     |
[INFO] [stderr] 639 |     pub fn getpeername(&self) -> Result<std::net::SocketAddr, UdtError> {
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:674:24
[INFO] [stderr]     |
[INFO] [stderr] 674 |     pub fn getsockname(&self) -> Result<std::net::SocketAddr, UdtError> {
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:723:20
[INFO] [stderr]     |
[INFO] [stderr] 723 |     pub fn sendmsg(&self, buf: &[u8]) -> Result<i32, UdtError> {
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:761:17
[INFO] [stderr]     |
[INFO] [stderr] 761 |     pub fn send(&self, buf: &[u8]) -> Result<i32, UdtError> {
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:796:20
[INFO] [stderr]     |
[INFO] [stderr] 796 |     pub fn recvmsg(&self, buf: &mut [u8]) -> Result<usize, UdtError> {
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:823:17
[INFO] [stderr]     |
[INFO] [stderr] 823 |     pub fn recv(&self, buf: &mut [u8], len: usize) -> Result<i32, UdtError> {
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:850:52
[INFO] [stderr]     |
[INFO] [stderr] 850 |     pub fn getsockopt<B: Default, T: UdtOption<B>>(&self, opt: T) -> Result<B, UdtError> {
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:870:43
[INFO] [stderr]     |
[INFO] [stderr] 870 |     pub fn setsockopt<B, T: UdtOption<B>>(&self, opt: T, value: B) -> Result<(), UdtError> {
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:886:21
[INFO] [stderr]     |
[INFO] [stderr] 886 |     pub fn getstate(&self) -> UdtStatus {
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:944:41
[INFO] [stderr]     |
[INFO] [stderr] 944 |     pub fn add_usock(&mut self, socket: &UdtSocket, events: Option<EpollEvents>) -> Result<(), UdtError> {
[INFO] [stderr]     |                                         ^^^^^^^^^^ help: consider passing by value instead: `UdtSocket`
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:967:40
[INFO] [stderr]     |
[INFO] [stderr] 967 |     pub fn remove_usock(&self, socket: &UdtSocket) -> Result<(), UdtError> {
[INFO] [stderr]     |                                        ^^^^^^^^^^ help: consider passing by value instead: `UdtSocket`
[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: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:344:28
[INFO] [stderr]     |
[INFO] [stderr] 344 |         let addr_b: u32 = ((addr_bytes[3] as u32) << 24)  + 
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(addr_bytes[3])`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:345:14
[INFO] [stderr]     |
[INFO] [stderr] 345 |             ((addr_bytes[2] as u32) << 16)  + 
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(addr_bytes[2])`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:346:14
[INFO] [stderr]     |
[INFO] [stderr] 346 |             ((addr_bytes[1] as u32) << 8 )  + 
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(addr_bytes[1])`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:347:13
[INFO] [stderr]     |
[INFO] [stderr] 347 |             ( addr_bytes[0] as u32);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(addr_bytes[0])`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u16 to i32 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:406:20
[INFO] [stderr]     |
[INFO] [stderr] 406 |     let fam: i32 = s.sa_family as i32;
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^ help: try: `i32::from(s.sa_family)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:477:17
[INFO] [stderr]     |
[INFO] [stderr] 477 |     pub fn bind(&self, name: std::net::SocketAddr) -> Result<(), UdtError> {
[INFO] [stderr]     |                 ^^^^^ help: consider passing by value instead: `self`
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:506:22
[INFO] [stderr]     |
[INFO] [stderr] 506 |     pub fn bind_from(&self, other: std::net::UdpSocket) -> Result<(), UdtError> {
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:542:20
[INFO] [stderr]     |
[INFO] [stderr] 542 |     pub fn connect(&self, name: std::net::SocketAddr) -> Result<(), UdtError> {
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:566:19
[INFO] [stderr]     |
[INFO] [stderr] 566 |     pub fn listen(&self, backlog: i32) -> Result<(), UdtError> {
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:592:19
[INFO] [stderr]     |
[INFO] [stderr] 592 |     pub fn accept(&self) -> Result<(UdtSocket, SocketAddr), UdtError> {
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:639:24
[INFO] [stderr]     |
[INFO] [stderr] 639 |     pub fn getpeername(&self) -> Result<std::net::SocketAddr, UdtError> {
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:674:24
[INFO] [stderr]     |
[INFO] [stderr] 674 |     pub fn getsockname(&self) -> Result<std::net::SocketAddr, UdtError> {
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:723:20
[INFO] [stderr]     |
[INFO] [stderr] 723 |     pub fn sendmsg(&self, buf: &[u8]) -> Result<i32, UdtError> {
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:761:17
[INFO] [stderr]     |
[INFO] [stderr] 761 |     pub fn send(&self, buf: &[u8]) -> Result<i32, UdtError> {
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:796:20
[INFO] [stderr]     |
[INFO] [stderr] 796 |     pub fn recvmsg(&self, buf: &mut [u8]) -> Result<usize, UdtError> {
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:823:17
[INFO] [stderr]     |
[INFO] [stderr] 823 |     pub fn recv(&self, buf: &mut [u8], len: usize) -> Result<i32, UdtError> {
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:850:52
[INFO] [stderr]     |
[INFO] [stderr] 850 |     pub fn getsockopt<B: Default, T: UdtOption<B>>(&self, opt: T) -> Result<B, UdtError> {
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:870:43
[INFO] [stderr]     |
[INFO] [stderr] 870 |     pub fn setsockopt<B, T: UdtOption<B>>(&self, opt: T, value: B) -> Result<(), UdtError> {
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:886:21
[INFO] [stderr]     |
[INFO] [stderr] 886 |     pub fn getstate(&self) -> UdtStatus {
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:944:41
[INFO] [stderr]     |
[INFO] [stderr] 944 |     pub fn add_usock(&mut self, socket: &UdtSocket, events: Option<EpollEvents>) -> Result<(), UdtError> {
[INFO] [stderr]     |                                         ^^^^^^^^^^ help: consider passing by value instead: `UdtSocket`
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:967:40
[INFO] [stderr]     |
[INFO] [stderr] 967 |     pub fn remove_usock(&self, socket: &UdtSocket) -> Result<(), UdtError> {
[INFO] [stderr]     |                                        ^^^^^^^^^^ help: consider passing by value instead: `UdtSocket`
[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: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/lib.rs:1057:5
[INFO] [stderr]      |
[INFO] [stderr] 1057 |     sock.bind(SocketAddr::V4(SocketAddrV4::new(localhost, 0))).or_else(|e| Err(panic!("Failed to bind to {:?} --> {:?}", localhost, e)));
[INFO] [stderr]      |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]     --> src/lib.rs:1057:80
[INFO] [stderr]      |
[INFO] [stderr] 1057 |     sock.bind(SocketAddr::V4(SocketAddrV4::new(localhost, 0))).or_else(|e| Err(panic!("Failed to bind to {:?} --> {:?}", localhost, e)));
[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: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/lib.rs:1078:5
[INFO] [stderr]      |
[INFO] [stderr] 1078 |     sock.bind(SocketAddr::V4(SocketAddrV4::new(localhost, 0))).or_else(|e| Err(panic!("Failed to bind to {:?} --> {:?}", localhost, e)));
[INFO] [stderr]      |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: passing a unit value to a function
[INFO] [stderr]     --> src/lib.rs:1078:80
[INFO] [stderr]      |
[INFO] [stderr] 1078 |     sock.bind(SocketAddr::V4(SocketAddrV4::new(localhost, 0))).or_else(|e| Err(panic!("Failed to bind to {:?} --> {:?}", localhost, e)));
[INFO] [stderr]      |                                                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[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: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> tests/test.rs:87:33
[INFO] [stderr]    |
[INFO] [stderr] 87 |         assert_eq!(&msg[..len], "hello".as_bytes());
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"hello"`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::string_lit_as_bytes)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> tests/test.rs:88:21
[INFO] [stderr]    |
[INFO] [stderr] 88 |         new.sendmsg("world".as_bytes()).unwrap();
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"world"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]    --> tests/test.rs:103:22
[INFO] [stderr]     |
[INFO] [stderr] 103 |         sock.sendmsg("hello".as_bytes()).unwrap();
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"hello"`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]    --> tests/test.rs:107:33
[INFO] [stderr]     |
[INFO] [stderr] 107 |         assert_eq!(&msg[..len], "world".as_bytes());
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"world"`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]    --> tests/test.rs:154:32
[INFO] [stderr]     |
[INFO] [stderr] 154 |         assert_eq!(&buf[0..5], "hello".as_bytes());
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"hello"`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]    --> tests/test.rs:157:31
[INFO] [stderr]     |
[INFO] [stderr] 157 |         assert_eq!(&buf[5..], "world".as_bytes());
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"world"`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]    --> tests/test.rs:158:26
[INFO] [stderr]     |
[INFO] [stderr] 158 |         assert_eq!(&buf, "helloworld".as_bytes());
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"helloworld"`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]    --> tests/test.rs:173:30
[INFO] [stderr]     |
[INFO] [stderr] 173 |         assert_eq!(sock.send("hello".as_bytes()).unwrap(), 5);
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"hello"`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]    --> tests/test.rs:174:30
[INFO] [stderr]     |
[INFO] [stderr] 174 |         assert_eq!(sock.send("world".as_bytes()).unwrap(), 5);
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"world"`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]    --> tests/test.rs:266:22
[INFO] [stderr]     |
[INFO] [stderr] 266 |         sock.sendmsg("hello".as_bytes()).unwrap();
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"hello"`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]    --> tests/test.rs:269:22
[INFO] [stderr]     |
[INFO] [stderr] 269 |         sock.sendmsg("world".as_bytes()).unwrap();
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"world"`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]    --> tests/test.rs:270:22
[INFO] [stderr]     |
[INFO] [stderr] 270 |         sock.sendmsg("done.".as_bytes()).unwrap();
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"done."`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]    --> tests/test.rs:368:22
[INFO] [stderr]     |
[INFO] [stderr] 368 |         sock.sendmsg("hello".as_bytes()).unwrap();
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"hello"`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]    --> tests/test.rs:371:22
[INFO] [stderr]     |
[INFO] [stderr] 371 |         sock.sendmsg("world".as_bytes()).unwrap();
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"world"`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]    --> tests/test.rs:372:22
[INFO] [stderr]     |
[INFO] [stderr] 372 |         sock.sendmsg("done.".as_bytes()).unwrap();
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"done."`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.30s
[INFO] running `"docker" "inspect" "6c418c82d7935149ac7255cffbd8af0c70373c46d92dca3aef0b6dc71c786e21"`
[INFO] running `"docker" "rm" "-f" "6c418c82d7935149ac7255cffbd8af0c70373c46d92dca3aef0b6dc71c786e21"`
[INFO] [stdout] 6c418c82d7935149ac7255cffbd8af0c70373c46d92dca3aef0b6dc71c786e21