[INFO] crate rocket_client 0.1.0 is already in cache
[INFO] extracting crate rocket_client 0.1.0 into work/ex/clippy-test-run/sources/stable/reg/rocket_client/0.1.0
[INFO] extracting crate rocket_client 0.1.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/rocket_client/0.1.0
[INFO] validating manifest of rocket_client-0.1.0 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 rocket_client-0.1.0 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 rocket_client-0.1.0
[INFO] finished frobbing rocket_client-0.1.0
[INFO] frobbed toml for rocket_client-0.1.0 written to work/ex/clippy-test-run/sources/stable/reg/rocket_client/0.1.0/Cargo.toml
[INFO] started frobbing rocket_client-0.1.0
[INFO] finished frobbing rocket_client-0.1.0
[INFO] frobbed toml for rocket_client-0.1.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/rocket_client/0.1.0/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 rocket_client-0.1.0 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-0/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/rocket_client/0.1.0:/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] 91da1cb61b5faa8ef0defd69dd67ee7d4a21eaeb761e7034b92103137b3dac28
[INFO] running `"docker" "start" "-a" "91da1cb61b5faa8ef0defd69dd67ee7d4a21eaeb761e7034b92103137b3dac28"`
[INFO] [stderr]     Checking rocket_sync v0.1.0
[INFO] [stderr]     Checking rocket_client v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lib.rs:82:23
[INFO] [stderr]    |
[INFO] [stderr] 82 |         Ok(SyncClient{stream: stream})
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^ help: replace it with: `stream`
[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/lib.rs:82:23
[INFO] [stderr]    |
[INFO] [stderr] 82 |         Ok(SyncClient{stream: stream})
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^ help: replace it with: `stream`
[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: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/lib.rs:18:22
[INFO] [stderr]    |
[INFO] [stderr] 18 | const CLIENT_GREET: &'static str = "hello, synctracker!";
[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: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/lib.rs:19:22
[INFO] [stderr]    |
[INFO] [stderr] 19 | const SERVER_GREET: &'static str = "hello, demo!";
[INFO] [stderr]    |                     -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[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: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/lib.rs:18:22
[INFO] [stderr]    |
[INFO] [stderr] 18 | const CLIENT_GREET: &'static str = "hello, synctracker!";
[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: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/lib.rs:19:22
[INFO] [stderr]    |
[INFO] [stderr] 19 | const SERVER_GREET: &'static str = "hello, demo!";
[INFO] [stderr]    |                     -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/utils.rs:32:26
[INFO] [stderr]    |
[INFO] [stderr] 32 | pub fn net_to_u32(bytes: &[u8; 4]) -> u32 {
[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: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]   --> src/utils.rs:35:10
[INFO] [stderr]    |
[INFO] [stderr] 35 |     n += (bytes[0] as u32) << 24;
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^ help: try: `u32::from(bytes[0])`
[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/utils.rs:36:10
[INFO] [stderr]    |
[INFO] [stderr] 36 |     n += (bytes[1] as u32) << 16;
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^ help: try: `u32::from(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/utils.rs:37:10
[INFO] [stderr]    |
[INFO] [stderr] 37 |     n += (bytes[2] as u32) << 8;
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^ help: try: `u32::from(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: the operation is ineffective. Consider reducing it to `(bytes[3] as u32)`
[INFO] [stderr]   --> src/utils.rs:38:10
[INFO] [stderr]    |
[INFO] [stderr] 38 |     n += (bytes[3] as u32) << 0;
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::identity_op)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]   --> src/utils.rs:38:10
[INFO] [stderr]    |
[INFO] [stderr] 38 |     n += (bytes[3] as u32) << 0;
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^ help: try: `u32::from(bytes[3])`
[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/utils.rs:44:26
[INFO] [stderr]    |
[INFO] [stderr] 44 | pub fn net_to_f32(bytes: &[u8; 4]) -> f32 {
[INFO] [stderr]    |                          ^^^^^^^^ help: consider passing by value instead: `[u8; 4]`
[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: transmute from a `u32` to a `f32`
[INFO] [stderr]   --> src/utils.rs:45:32
[INFO] [stderr]    |
[INFO] [stderr] 45 |     let number: f32 = unsafe { mem::transmute(net_to_u32(bytes)) };
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `f32::from_bits(net_to_u32(bytes))`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::transmute_int_to_float)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_int_to_float
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `n`
[INFO] [stderr]   --> src/utils.rs:56:17
[INFO] [stderr]    |
[INFO] [stderr] 56 |     bytes[3] = ((n >>  0) & 0xFF) as u8;
[INFO] [stderr]    |                 ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `n`
[INFO] [stderr]   --> src/utils.rs:65:17
[INFO] [stderr]    |
[INFO] [stderr] 65 |     bytes[0] = ((n >>  0) & 0xFF) as u8;
[INFO] [stderr]    |                 ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/utils.rs:81:14
[INFO] [stderr]    |
[INFO] [stderr] 81 |     let t = ((row as f64) / rps) * 1000.0 + 0.5;
[INFO] [stderr]    |              ^^^^^^^^^^^^ help: try: `f64::from(row)`
[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] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]   --> src/lib.rs:55:9
[INFO] [stderr]    |
[INFO] [stderr] 55 |         stream.write(CLIENT_GREET.as_bytes())?;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/utils.rs:32:26
[INFO] [stderr]    |
[INFO] [stderr] 32 | pub fn net_to_u32(bytes: &[u8; 4]) -> u32 {
[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: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]   --> src/utils.rs:35:10
[INFO] [stderr]    |
[INFO] [stderr] 35 |     n += (bytes[0] as u32) << 24;
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^ help: try: `u32::from(bytes[0])`
[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/utils.rs:36:10
[INFO] [stderr]    |
[INFO] [stderr] 36 |     n += (bytes[1] as u32) << 16;
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^ help: try: `u32::from(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/utils.rs:37:10
[INFO] [stderr]    |
[INFO] [stderr] 37 |     n += (bytes[2] as u32) << 8;
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^ help: try: `u32::from(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: the operation is ineffective. Consider reducing it to `(bytes[3] as u32)`
[INFO] [stderr]   --> src/utils.rs:38:10
[INFO] [stderr]    |
[INFO] [stderr] 38 |     n += (bytes[3] as u32) << 0;
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::identity_op)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]   --> src/utils.rs:38:10
[INFO] [stderr]    |
[INFO] [stderr] 38 |     n += (bytes[3] as u32) << 0;
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^ help: try: `u32::from(bytes[3])`
[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/utils.rs:44:26
[INFO] [stderr]    |
[INFO] [stderr] 44 | pub fn net_to_f32(bytes: &[u8; 4]) -> f32 {
[INFO] [stderr]    |                          ^^^^^^^^ help: consider passing by value instead: `[u8; 4]`
[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: transmute from a `u32` to a `f32`
[INFO] [stderr]   --> src/utils.rs:45:32
[INFO] [stderr]    |
[INFO] [stderr] 45 |     let number: f32 = unsafe { mem::transmute(net_to_u32(bytes)) };
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `f32::from_bits(net_to_u32(bytes))`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::transmute_int_to_float)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_int_to_float
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `n`
[INFO] [stderr]   --> src/utils.rs:56:17
[INFO] [stderr]    |
[INFO] [stderr] 56 |     bytes[3] = ((n >>  0) & 0xFF) as u8;
[INFO] [stderr]    |                 ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `n`
[INFO] [stderr]   --> src/utils.rs:65:17
[INFO] [stderr]    |
[INFO] [stderr] 65 |     bytes[0] = ((n >>  0) & 0xFF) as u8;
[INFO] [stderr]    |                 ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/utils.rs:81:14
[INFO] [stderr]    |
[INFO] [stderr] 81 |     let t = ((row as f64) / rps) * 1000.0 + 0.5;
[INFO] [stderr]    |              ^^^^^^^^^^^^ help: try: `f64::from(row)`
[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]    |
[INFO] [stderr]    = note: #[deny(clippy::unused_io_amount)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]   --> src/lib.rs:64:28
[INFO] [stderr]    |
[INFO] [stderr] 64 |                         if String::from(SERVER_GREET) != resp {
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `SERVER_GREET`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cmp_owned)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]   --> src/lib.rs:55:9
[INFO] [stderr]    |
[INFO] [stderr] 55 |         stream.write(CLIENT_GREET.as_bytes())?;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::unused_io_amount)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]   --> src/lib.rs:64:28
[INFO] [stderr]    |
[INFO] [stderr] 64 |                         if String::from(SERVER_GREET) != resp {
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `SERVER_GREET`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cmp_owned)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]    --> src/lib.rs:162:9
[INFO] [stderr]     |
[INFO] [stderr] 162 |         self.stream.write(&buf)?;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]    --> src/lib.rs:162:9
[INFO] [stderr]     |
[INFO] [stderr] 162 |         self.stream.write(&buf)?;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]    --> src/lib.rs:167:9
[INFO] [stderr]     |
[INFO] [stderr] 167 |         self.stream.write(&buf)?;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/lib.rs:173:53
[INFO] [stderr]     |
[INFO] [stderr] 173 |     pub fn send_track_names(&mut self, track_names: &Vec<String>) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                                     ^^^^^^^^^^^^ help: change this to: `&[String]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]    --> src/lib.rs:181:13
[INFO] [stderr]     |
[INFO] [stderr] 181 |             self.stream.write(&buf)?;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]    --> src/lib.rs:185:13
[INFO] [stderr]     |
[INFO] [stderr] 185 |             self.stream.write(&buf)?;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]    --> src/lib.rs:189:13
[INFO] [stderr]     |
[INFO] [stderr] 189 |             self.stream.write(buf)?;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]    --> src/lib.rs:167:9
[INFO] [stderr]     |
[INFO] [stderr] 167 |         self.stream.write(&buf)?;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/lib.rs:173:53
[INFO] [stderr]     |
[INFO] [stderr] 173 |     pub fn send_track_names(&mut self, track_names: &Vec<String>) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                                     ^^^^^^^^^^^^ help: change this to: `&[String]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]    --> src/lib.rs:181:13
[INFO] [stderr]     |
[INFO] [stderr] 181 |             self.stream.write(&buf)?;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]    --> src/lib.rs:185:13
[INFO] [stderr]     |
[INFO] [stderr] 185 |             self.stream.write(&buf)?;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]    --> src/lib.rs:189:13
[INFO] [stderr]     |
[INFO] [stderr] 189 |             self.stream.write(buf)?;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/lib.rs:227:12
[INFO] [stderr]     |
[INFO] [stderr] 227 |         if device.tracks.len() == 0 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `device.tracks.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/lib.rs:258:12
[INFO] [stderr]     |
[INFO] [stderr] 258 |         if device.tracks.len() == 0 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `device.tracks.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: length comparison to zero
[INFO] [stderr]    --> src/lib.rs:227:12
[INFO] [stderr]     |
[INFO] [stderr] 227 |         if device.tracks.len() == 0 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `device.tracks.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/lib.rs:258:12
[INFO] [stderr]     |
[INFO] [stderr] 258 |         if device.tracks.len() == 0 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `device.tracks.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] error: aborting due to 6 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `rocket_client`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: aborting due to 6 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `rocket_client`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "91da1cb61b5faa8ef0defd69dd67ee7d4a21eaeb761e7034b92103137b3dac28"`
[INFO] running `"docker" "rm" "-f" "91da1cb61b5faa8ef0defd69dd67ee7d4a21eaeb761e7034b92103137b3dac28"`
[INFO] [stdout] 91da1cb61b5faa8ef0defd69dd67ee7d4a21eaeb761e7034b92103137b3dac28