[INFO] updating cached repository Jon0/usbdrivers
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Jon0/usbdrivers
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Jon0/usbdrivers" "work/ex/clippy-test-run/sources/stable/gh/Jon0/usbdrivers"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/Jon0/usbdrivers'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Jon0/usbdrivers" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Jon0/usbdrivers"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Jon0/usbdrivers'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6a48811ff261e93446c5dd09f25bd61219742232
[INFO] sha for GitHub repo Jon0/usbdrivers: 6a48811ff261e93446c5dd09f25bd61219742232
[INFO] validating manifest of Jon0/usbdrivers 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 Jon0/usbdrivers 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 Jon0/usbdrivers
[INFO] finished frobbing Jon0/usbdrivers
[INFO] frobbed toml for Jon0/usbdrivers written to work/ex/clippy-test-run/sources/stable/gh/Jon0/usbdrivers/Cargo.toml
[INFO] started frobbing Jon0/usbdrivers
[INFO] finished frobbing Jon0/usbdrivers
[INFO] frobbed toml for Jon0/usbdrivers written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Jon0/usbdrivers/Cargo.toml
[INFO] crate Jon0/usbdrivers has a lockfile. skipping
[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 Jon0/usbdrivers 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/gh/Jon0/usbdrivers:/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] daace5857f075e7501b12947e3ab8ec0e4b31692646aedcbb8eaa20675ac2400
[INFO] running `"docker" "start" "-a" "daace5857f075e7501b12947e3ab8ec0e4b31692646aedcbb8eaa20675ac2400"`
[INFO] [stderr]    Compiling libusb-sys v0.2.3
[INFO] [stderr]     Checking bit-set v0.2.0
[INFO] [stderr]     Checking libusb v0.3.0
[INFO] [stderr]     Checking logictl v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/main.rs:63:13
[INFO] [stderr]    |
[INFO] [stderr] 63 |             print_messages: print_messages
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `print_messages`
[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/main.rs:910:52
[INFO] [stderr]     |
[INFO] [stderr] 910 |                 config.led_mode = LedMode::Static{ r: r, g: g, b: b };
[INFO] [stderr]     |                                                    ^^^^ help: replace it with: `r`
[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/main.rs:910:58
[INFO] [stderr]     |
[INFO] [stderr] 910 |                 config.led_mode = LedMode::Static{ r: r, g: g, b: b };
[INFO] [stderr]     |                                                          ^^^^ help: replace it with: `g`
[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/main.rs:910:64
[INFO] [stderr]     |
[INFO] [stderr] 910 |                 config.led_mode = LedMode::Static{ r: r, g: g, b: b };
[INFO] [stderr]     |                                                                ^^^^ help: replace it with: `b`
[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/main.rs:63:13
[INFO] [stderr]    |
[INFO] [stderr] 63 |             print_messages: print_messages
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `print_messages`
[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/main.rs:910:52
[INFO] [stderr]     |
[INFO] [stderr] 910 |                 config.led_mode = LedMode::Static{ r: r, g: g, b: b };
[INFO] [stderr]     |                                                    ^^^^ help: replace it with: `r`
[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/main.rs:910:58
[INFO] [stderr]     |
[INFO] [stderr] 910 |                 config.led_mode = LedMode::Static{ r: r, g: g, b: b };
[INFO] [stderr]     |                                                          ^^^^ help: replace it with: `g`
[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/main.rs:910:64
[INFO] [stderr]     |
[INFO] [stderr] 910 |                 config.led_mode = LedMode::Static{ r: r, g: g, b: b };
[INFO] [stderr]     |                                                                ^^^^ help: replace it with: `b`
[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: unused import: `std::io::Read`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::io::Read;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Seek`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::io::Seek;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::SeekFrom`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::io::SeekFrom;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::fs;
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::fs::File;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::path::PathBuf`
[INFO] [stderr]   --> src/main.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use std::path::PathBuf;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::Rng`
[INFO] [stderr]   --> src/main.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use rand::Rng;
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Hasher16`, `crc16`
[INFO] [stderr]   --> src/main.rs:16:11
[INFO] [stderr]    |
[INFO] [stderr] 16 | use crc::{crc16, Hasher16};
[INFO] [stderr]    |           ^^^^^  ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:58:9
[INFO] [stderr]    |
[INFO] [stderr] 58 | /         return UsbController {
[INFO] [stderr] 59 | |             handle: device.open().unwrap(),
[INFO] [stderr] 60 | |             interface: selected_interface,
[INFO] [stderr] 61 | |             read_address: selected_read_address,
[INFO] [stderr] 62 | |             write_address: selected_write_address,
[INFO] [stderr] 63 | |             print_messages: print_messages
[INFO] [stderr] 64 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 58 |         UsbController {
[INFO] [stderr] 59 |             handle: device.open().unwrap(),
[INFO] [stderr] 60 |             interface: selected_interface,
[INFO] [stderr] 61 |             read_address: selected_read_address,
[INFO] [stderr] 62 |             write_address: selected_write_address,
[INFO] [stderr] 63 |             print_messages: print_messages
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:85:9
[INFO] [stderr]    |
[INFO] [stderr] 85 |         return result;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: remove `return` as shown: `result`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:198:13
[INFO] [stderr]     |
[INFO] [stderr] 198 |             return (resp[4], resp[5]);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(resp[4], resp[5])`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:201:13
[INFO] [stderr]     |
[INFO] [stderr] 201 |             return (0, 0);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: remove `return` as shown: `(0, 0)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:324:9
[INFO] [stderr]     |
[INFO] [stderr] 324 |         return (checksum_a, checksum_b);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(checksum_a, checksum_b)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/main.rs:337:12
[INFO] [stderr]     |
[INFO] [stderr] 337 |         if (poll_rate == 500) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/main.rs:340:17
[INFO] [stderr]     |
[INFO] [stderr] 340 |         else if (poll_rate == 333) {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/main.rs:343:17
[INFO] [stderr]     |
[INFO] [stderr] 343 |         else if (poll_rate == 250) {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:452:7
[INFO] [stderr]     |
[INFO] [stderr] 452 |       return crc;
[INFO] [stderr]     |       ^^^^^^^^^^^ help: remove `return` as shown: `crc`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/main.rs:442:14
[INFO] [stderr]     |
[INFO] [stderr] 442 |       crc ^= ((data as u16) << 8);
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/main.rs:864:8
[INFO] [stderr]     |
[INFO] [stderr] 864 |     if (config.print_endpoints) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/main.rs:905:16
[INFO] [stderr]     |
[INFO] [stderr] 905 |             if (parts.len() == 3) {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Read`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::io::Read;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Seek`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::io::Seek;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::SeekFrom`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::io::SeekFrom;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::fs;
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::fs::File;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::path::PathBuf`
[INFO] [stderr]   --> src/main.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use std::path::PathBuf;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::Rng`
[INFO] [stderr]   --> src/main.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use rand::Rng;
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Hasher16`, `crc16`
[INFO] [stderr]   --> src/main.rs:16:11
[INFO] [stderr]    |
[INFO] [stderr] 16 | use crc::{crc16, Hasher16};
[INFO] [stderr]    |           ^^^^^  ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:58:9
[INFO] [stderr]    |
[INFO] [stderr] 58 | /         return UsbController {
[INFO] [stderr] 59 | |             handle: device.open().unwrap(),
[INFO] [stderr] 60 | |             interface: selected_interface,
[INFO] [stderr] 61 | |             read_address: selected_read_address,
[INFO] [stderr] 62 | |             write_address: selected_write_address,
[INFO] [stderr] 63 | |             print_messages: print_messages
[INFO] [stderr] 64 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 58 |         UsbController {
[INFO] [stderr] 59 |             handle: device.open().unwrap(),
[INFO] [stderr] 60 |             interface: selected_interface,
[INFO] [stderr] 61 |             read_address: selected_read_address,
[INFO] [stderr] 62 |             write_address: selected_write_address,
[INFO] [stderr] 63 |             print_messages: print_messages
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:85:9
[INFO] [stderr]    |
[INFO] [stderr] 85 |         return result;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: remove `return` as shown: `result`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:198:13
[INFO] [stderr]     |
[INFO] [stderr] 198 |             return (resp[4], resp[5]);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(resp[4], resp[5])`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:201:13
[INFO] [stderr]     |
[INFO] [stderr] 201 |             return (0, 0);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: remove `return` as shown: `(0, 0)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:324:9
[INFO] [stderr]     |
[INFO] [stderr] 324 |         return (checksum_a, checksum_b);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(checksum_a, checksum_b)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/main.rs:337:12
[INFO] [stderr]     |
[INFO] [stderr] 337 |         if (poll_rate == 500) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/main.rs:340:17
[INFO] [stderr]     |
[INFO] [stderr] 340 |         else if (poll_rate == 333) {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/main.rs:343:17
[INFO] [stderr]     |
[INFO] [stderr] 343 |         else if (poll_rate == 250) {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:452:7
[INFO] [stderr]     |
[INFO] [stderr] 452 |       return crc;
[INFO] [stderr]     |       ^^^^^^^^^^^ help: remove `return` as shown: `crc`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/main.rs:442:14
[INFO] [stderr]     |
[INFO] [stderr] 442 |       crc ^= ((data as u16) << 8);
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/main.rs:864:8
[INFO] [stderr]     |
[INFO] [stderr] 864 |     if (config.print_endpoints) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/main.rs:905:16
[INFO] [stderr]     |
[INFO] [stderr] 905 |             if (parts.len() == 3) {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]   --> src/main.rs:94:13
[INFO] [stderr]    |
[INFO] [stderr] 94 |         let result = self.handle.write_control(0x21, 9, 0x0210, 1, msg, Duration::from_secs(1)).unwrap();
[INFO] [stderr]    |             ^^^^^^ help: consider using `_result` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/main.rs:102:13
[INFO] [stderr]     |
[INFO] [stderr] 102 |         let result = self.handle.write_control(0x21, 9, 0x0211, 1, msg, Duration::from_secs(1)).unwrap();
[INFO] [stderr]     |             ^^^^^^ help: consider using `_result` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cmd_param`
[INFO] [stderr]    --> src/main.rs:316:13
[INFO] [stderr]     |
[INFO] [stderr] 316 |         let cmd_param = 0x1d;
[INFO] [stderr]     |             ^^^^^^^^^ help: consider using `_cmd_param` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/main.rs:443:11
[INFO] [stderr]     |
[INFO] [stderr] 443 |       for x in 0..8 {
[INFO] [stderr]     |           ^ help: consider using `_x` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `command_type_0`
[INFO] [stderr]    --> src/main.rs:506:13
[INFO] [stderr]     |
[INFO] [stderr] 506 |         let command_type_0 = 0x0c; // root
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: consider using `_command_type_0` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `command_type_1`
[INFO] [stderr]    --> src/main.rs:507:13
[INFO] [stderr]     |
[INFO] [stderr] 507 |         let command_type_1 = 0x1c; //
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: consider using `_command_type_1` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `command_type_2`
[INFO] [stderr]    --> src/main.rs:508:13
[INFO] [stderr]     |
[INFO] [stderr] 508 |         let command_type_2 = 0x2c; // check connected
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: consider using `_command_type_2` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `command_type_3`
[INFO] [stderr]    --> src/main.rs:509:13
[INFO] [stderr]     |
[INFO] [stderr] 509 |         let command_type_3 = 0x3c; // color setting
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: consider using `_command_type_3` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `command_type_4`
[INFO] [stderr]    --> src/main.rs:510:13
[INFO] [stderr]     |
[INFO] [stderr] 510 |         let command_type_4 = 0x4c; // get status, returns err and current profile
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: consider using `_command_type_4` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `command_type_6`
[INFO] [stderr]    --> src/main.rs:511:13
[INFO] [stderr]     |
[INFO] [stderr] 511 |         let command_type_6 = 0x6c;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: consider using `_command_type_6` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `command_type_7`
[INFO] [stderr]    --> src/main.rs:512:13
[INFO] [stderr]     |
[INFO] [stderr] 512 |         let command_type_7 = 0x7c;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: consider using `_command_type_7` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/main.rs:589:13
[INFO] [stderr]     |
[INFO] [stderr] 589 |         let result = self.handle.write_control(0x21, 9, 0x0210, 1, msg, Duration::from_secs(10)).unwrap();
[INFO] [stderr]     |             ^^^^^^ help: consider using `_result` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/main.rs:599:13
[INFO] [stderr]     |
[INFO] [stderr] 599 |         let result = self.handle.write_control(0x21, 9, 0x0211, 1, msg, Duration::from_secs(10)).unwrap();
[INFO] [stderr]     |             ^^^^^^ help: consider using `_result` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/main.rs:605:13
[INFO] [stderr]     |
[INFO] [stderr] 605 |         let result = self.handle.write_interrupt(self.write_address, msg, Duration::from_secs(10)).unwrap();
[INFO] [stderr]     |             ^^^^^^ help: consider using `_result` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/main.rs:650:34
[INFO] [stderr]     |
[INFO] [stderr] 650 |     fn enable_profile(&mut self, n: u8) {
[INFO] [stderr]     |                                  ^ help: consider using `_n` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `mode_id` is never read
[INFO] [stderr]    --> src/main.rs:684:17
[INFO] [stderr]     |
[INFO] [stderr] 684 |         let mut mode_id = 0x00;
[INFO] [stderr]     |                 ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_assignments)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]    --> src/main.rs:760:18
[INFO] [stderr]     |
[INFO] [stderr] 760 |             let (err, p) = self.send_4_status(device_index, feature_index, swid);
[INFO] [stderr]     |                  ^^^ help: consider using `_err` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]   --> src/main.rs:94:13
[INFO] [stderr]    |
[INFO] [stderr] 94 |         let result = self.handle.write_control(0x21, 9, 0x0210, 1, msg, Duration::from_secs(1)).unwrap();
[INFO] [stderr]    |             ^^^^^^ help: consider using `_result` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/main.rs:102:13
[INFO] [stderr]     |
[INFO] [stderr] 102 |         let result = self.handle.write_control(0x21, 9, 0x0211, 1, msg, Duration::from_secs(1)).unwrap();
[INFO] [stderr]     |             ^^^^^^ help: consider using `_result` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cmd_param`
[INFO] [stderr]    --> src/main.rs:316:13
[INFO] [stderr]     |
[INFO] [stderr] 316 |         let cmd_param = 0x1d;
[INFO] [stderr]     |             ^^^^^^^^^ help: consider using `_cmd_param` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/main.rs:443:11
[INFO] [stderr]     |
[INFO] [stderr] 443 |       for x in 0..8 {
[INFO] [stderr]     |           ^ help: consider using `_x` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `command_type_0`
[INFO] [stderr]    --> src/main.rs:506:13
[INFO] [stderr]     |
[INFO] [stderr] 506 |         let command_type_0 = 0x0c; // root
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: consider using `_command_type_0` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `command_type_1`
[INFO] [stderr]    --> src/main.rs:507:13
[INFO] [stderr]     |
[INFO] [stderr] 507 |         let command_type_1 = 0x1c; //
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: consider using `_command_type_1` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `command_type_2`
[INFO] [stderr]    --> src/main.rs:508:13
[INFO] [stderr]     |
[INFO] [stderr] 508 |         let command_type_2 = 0x2c; // check connected
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: consider using `_command_type_2` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `command_type_3`
[INFO] [stderr]    --> src/main.rs:509:13
[INFO] [stderr]     |
[INFO] [stderr] 509 |         let command_type_3 = 0x3c; // color setting
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: consider using `_command_type_3` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `command_type_4`
[INFO] [stderr]    --> src/main.rs:510:13
[INFO] [stderr]     |
[INFO] [stderr] 510 |         let command_type_4 = 0x4c; // get status, returns err and current profile
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: consider using `_command_type_4` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `command_type_6`
[INFO] [stderr]    --> src/main.rs:511:13
[INFO] [stderr]     |
[INFO] [stderr] 511 |         let command_type_6 = 0x6c;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: consider using `_command_type_6` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `command_type_7`
[INFO] [stderr]    --> src/main.rs:512:13
[INFO] [stderr]     |
[INFO] [stderr] 512 |         let command_type_7 = 0x7c;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: consider using `_command_type_7` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/main.rs:589:13
[INFO] [stderr]     |
[INFO] [stderr] 589 |         let result = self.handle.write_control(0x21, 9, 0x0210, 1, msg, Duration::from_secs(10)).unwrap();
[INFO] [stderr]     |             ^^^^^^ help: consider using `_result` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/main.rs:599:13
[INFO] [stderr]     |
[INFO] [stderr] 599 |         let result = self.handle.write_control(0x21, 9, 0x0211, 1, msg, Duration::from_secs(10)).unwrap();
[INFO] [stderr]     |             ^^^^^^ help: consider using `_result` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/main.rs:605:13
[INFO] [stderr]     |
[INFO] [stderr] 605 |         let result = self.handle.write_interrupt(self.write_address, msg, Duration::from_secs(10)).unwrap();
[INFO] [stderr]     |             ^^^^^^ help: consider using `_result` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/main.rs:650:34
[INFO] [stderr]     |
[INFO] [stderr] 650 |     fn enable_profile(&mut self, n: u8) {
[INFO] [stderr]     |                                  ^ help: consider using `_n` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `mode_id` is never read
[INFO] [stderr]    --> src/main.rs:684:17
[INFO] [stderr]     |
[INFO] [stderr] 684 |         let mut mode_id = 0x00;
[INFO] [stderr]     |                 ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_assignments)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]    --> src/main.rs:760:18
[INFO] [stderr]     |
[INFO] [stderr] 760 |             let (err, p) = self.send_4_status(device_index, feature_index, swid);
[INFO] [stderr]     |                  ^^^ help: consider using `_err` instead
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:695:13
[INFO] [stderr]     |
[INFO] [stderr] 695 |         let mut unknown = 0x01;
[INFO] [stderr]     |             ----^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:695:13
[INFO] [stderr]     |
[INFO] [stderr] 695 |         let mut unknown = 0x01;
[INFO] [stderr]     |             ----^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:930:9
[INFO] [stderr]     |
[INFO] [stderr] 930 |     let mut context = libusb::Context::new().unwrap();
[INFO] [stderr]     |         ----^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `write_address`
[INFO] [stderr]   --> src/main.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     write_address: u8,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `send_1_get_features`
[INFO] [stderr]    --> src/main.rs:120:5
[INFO] [stderr]     |
[INFO] [stderr] 120 |     fn send_1_get_features(&mut self, di: u8, fi: u8, swid: u8, offset: u8, param_b: u8, param_c: u8) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `send_2_connected`
[INFO] [stderr]    --> src/main.rs:136:5
[INFO] [stderr]     |
[INFO] [stderr] 136 |     fn send_2_connected(&mut self, di: u8, fi: u8, swid: u8, offset: u8, param_b: u8, param_c: u8) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `send_5_read_record`
[INFO] [stderr]    --> src/main.rs:209:5
[INFO] [stderr]     |
[INFO] [stderr] 209 |     fn send_5_read_record(&mut self, di: u8, fi: u8, swid: u8, id_a: u8, profile: u8, offset: u8) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_magic_numbers`
[INFO] [stderr]    --> src/main.rs:272:5
[INFO] [stderr]     |
[INFO] [stderr] 272 |     fn get_magic_numbers(&self) -> (u8, u8) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `send_group_7_enable_profile`
[INFO] [stderr]    --> src/main.rs:456:5
[INFO] [stderr]     |
[INFO] [stderr] 456 |     fn send_group_7_enable_profile(&mut self, di: u8, fi: u8, swid: u8) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `write_init_commands`
[INFO] [stderr]    --> src/main.rs:500:5
[INFO] [stderr]     |
[INFO] [stderr] 500 |     fn write_init_commands(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `send_ctl_7`
[INFO] [stderr]    --> src/main.rs:587:5
[INFO] [stderr]     |
[INFO] [stderr] 587 |     fn send_ctl_7(&mut self, msg: &[u8]) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `send_ctl_20`
[INFO] [stderr]    --> src/main.rs:597:5
[INFO] [stderr]     |
[INFO] [stderr] 597 |     fn send_ctl_20(&mut self, msg: &[u8]) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `send_msg`
[INFO] [stderr]    --> src/main.rs:604:5
[INFO] [stderr]     |
[INFO] [stderr] 604 |     fn send_msg(&mut self, msg: &[u8]) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `enable_profile`
[INFO] [stderr]    --> src/main.rs:650:5
[INFO] [stderr]     |
[INFO] [stderr] 650 |     fn enable_profile(&mut self, n: u8) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `before_apply`
[INFO] [stderr]    --> src/main.rs:721:5
[INFO] [stderr]     |
[INFO] [stderr] 721 |     fn before_apply(&mut self, profile: u8) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Off`
[INFO] [stderr]    --> src/main.rs:820:5
[INFO] [stderr]     |
[INFO] [stderr] 820 |     Off, Static { r: u8, g: u8, b: u8 }, Cycle { speed: u16, brightness: u8 }
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Cycle`
[INFO] [stderr]    --> src/main.rs:820:42
[INFO] [stderr]     |
[INFO] [stderr] 820 |     Off, Static { r: u8, g: u8, b: u8 }, Cycle { speed: u16, brightness: u8 }
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:68:9
[INFO] [stderr]    |
[INFO] [stderr] 68 |         self.handle.detach_kernel_driver(self.interface);
[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: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:69:9
[INFO] [stderr]    |
[INFO] [stderr] 69 |         self.handle.claim_interface(self.interface);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:73:9
[INFO] [stderr]    |
[INFO] [stderr] 73 |         self.handle.release_interface(self.interface);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `b` is only used to index `out`.
[INFO] [stderr]   --> src/main.rs:80:22
[INFO] [stderr]    |
[INFO] [stderr] 80 |             for b in 0..result {
[INFO] [stderr]    |                      ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]    |
[INFO] [stderr] 80 |             for <item> in out.iter().take(result) {
[INFO] [stderr]    |                 ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `swid`
[INFO] [stderr]    --> src/main.rs:106:22
[INFO] [stderr]     |
[INFO] [stderr] 106 |         let byte_3 = 0x00 + swid;
[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: this function has too many arguments (12/7)
[INFO] [stderr]    --> src/main.rs:170:5
[INFO] [stderr]     |
[INFO] [stderr] 170 | /     fn send_3_color(&mut self, di: u8, fi: u8, swid: u8, led_mode: u8, led_r: u8, led_g: u8, led_b: u8, cycle_a: u8, cycle_b: u8, cycle_c: u8, param: u8) {
[INFO] [stderr] 171 | |         let command_3 = 0x30 + swid;
[INFO] [stderr] 172 | |         let buf: [u8; 20] = [
[INFO] [stderr] 173 | |             0x11, di, fi, command_3, 0x00, led_mode, led_r, led_g,
[INFO] [stderr] ...   |
[INFO] [stderr] 180 | |         self.read_response(&mut resp);
[INFO] [stderr] 181 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::too_many_arguments)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#too_many_arguments
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:930:9
[INFO] [stderr]     |
[INFO] [stderr] 930 |     let mut context = libusb::Context::new().unwrap();
[INFO] [stderr]     |         ----^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `write_address`
[INFO] [stderr]   --> src/main.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     write_address: u8,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `send_1_get_features`
[INFO] [stderr]    --> src/main.rs:120:5
[INFO] [stderr]     |
[INFO] [stderr] 120 |     fn send_1_get_features(&mut self, di: u8, fi: u8, swid: u8, offset: u8, param_b: u8, param_c: u8) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `send_2_connected`
[INFO] [stderr]    --> src/main.rs:136:5
[INFO] [stderr]     |
[INFO] [stderr] 136 |     fn send_2_connected(&mut self, di: u8, fi: u8, swid: u8, offset: u8, param_b: u8, param_c: u8) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `send_5_read_record`
[INFO] [stderr]    --> src/main.rs:209:5
[INFO] [stderr]     |
[INFO] [stderr] 209 |     fn send_5_read_record(&mut self, di: u8, fi: u8, swid: u8, id_a: u8, profile: u8, offset: u8) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_magic_numbers`
[INFO] [stderr]    --> src/main.rs:272:5
[INFO] [stderr]     |
[INFO] [stderr] 272 |     fn get_magic_numbers(&self) -> (u8, u8) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `send_group_7_enable_profile`
[INFO] [stderr]    --> src/main.rs:456:5
[INFO] [stderr]     |
[INFO] [stderr] 456 |     fn send_group_7_enable_profile(&mut self, di: u8, fi: u8, swid: u8) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `write_init_commands`
[INFO] [stderr]    --> src/main.rs:500:5
[INFO] [stderr]     |
[INFO] [stderr] 500 |     fn write_init_commands(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `send_ctl_7`
[INFO] [stderr]    --> src/main.rs:587:5
[INFO] [stderr]     |
[INFO] [stderr] 587 |     fn send_ctl_7(&mut self, msg: &[u8]) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `send_ctl_20`
[INFO] [stderr]    --> src/main.rs:597:5
[INFO] [stderr]     |
[INFO] [stderr] 597 |     fn send_ctl_20(&mut self, msg: &[u8]) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `send_msg`
[INFO] [stderr]    --> src/main.rs:604:5
[INFO] [stderr]     |
[INFO] [stderr] 604 |     fn send_msg(&mut self, msg: &[u8]) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `enable_profile`
[INFO] [stderr]    --> src/main.rs:650:5
[INFO] [stderr]     |
[INFO] [stderr] 650 |     fn enable_profile(&mut self, n: u8) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `before_apply`
[INFO] [stderr]    --> src/main.rs:721:5
[INFO] [stderr]     |
[INFO] [stderr] 721 |     fn before_apply(&mut self, profile: u8) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Off`
[INFO] [stderr]    --> src/main.rs:820:5
[INFO] [stderr]     |
[INFO] [stderr] 820 |     Off, Static { r: u8, g: u8, b: u8 }, Cycle { speed: u16, brightness: u8 }
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Cycle`
[INFO] [stderr]    --> src/main.rs:820:42
[INFO] [stderr]     |
[INFO] [stderr] 820 |     Off, Static { r: u8, g: u8, b: u8 }, Cycle { speed: u16, brightness: u8 }
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/main.rs:369:12
[INFO] [stderr]     |
[INFO] [stderr] 369 |         if dpi_array.len() > 0 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!dpi_array.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: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:68:9
[INFO] [stderr]    |
[INFO] [stderr] 68 |         self.handle.detach_kernel_driver(self.interface);
[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: `if _ { .. } else { .. }` is an expression
[INFO] [stderr]    --> src/main.rs:414:13
[INFO] [stderr]     |
[INFO] [stderr] 414 | /             let mut range = packet.len();
[INFO] [stderr] 415 | |             if crc_count == 0xf0 {
[INFO] [stderr] 416 | |                 range = packet.len() - 2; // skip last 2 bytes
[INFO] [stderr] 417 | |             }
[INFO] [stderr]     | |_____________^ help: it is more idiomatic to write: `let <mut> range = if crc_count == 0xf0 { packet.len() - 2 } else { packet.len() };`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::useless_let_if_seq)] on by default
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:69:9
[INFO] [stderr]    |
[INFO] [stderr] 69 |         self.handle.claim_interface(self.interface);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = note: you might not need `mut` at all
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_let_if_seq
[INFO] [stderr] 
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `x` is only used to index `packet`.
[INFO] [stderr]    --> src/main.rs:418:22
[INFO] [stderr]     |
[INFO] [stderr] 418 |             for x in 0..range {
[INFO] [stderr]     |                      ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 418 |             for <item> in packet.iter().take(range) {
[INFO] [stderr]     |                 ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:73:9
[INFO] [stderr]    |
[INFO] [stderr] 73 |         self.handle.release_interface(self.interface);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u16 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:442:15
[INFO] [stderr]     |
[INFO] [stderr] 442 |       crc ^= ((data as u16) << 8);
[INFO] [stderr]     |               ^^^^^^^^^^^^^ help: try: `u16::from(data)`
[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: the operation is ineffective. Consider reducing it to `((crc << 1) ^ 0x1021)`
[INFO] [stderr]    --> src/main.rs:445:21
[INFO] [stderr]     |
[INFO] [stderr] 445 |               crc = ((crc << 1) ^ 0x1021) & 0xFFFF;
[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 loop variable `b` is only used to index `out`.
[INFO] [stderr]   --> src/main.rs:80:22
[INFO] [stderr]    |
[INFO] [stderr] 80 |             for b in 0..result {
[INFO] [stderr]    |                      ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]    |
[INFO] [stderr] 80 |             for <item> in out.iter().take(result) {
[INFO] [stderr]    |                 ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `swid`
[INFO] [stderr]    --> src/main.rs:106:22
[INFO] [stderr]     |
[INFO] [stderr] 106 |         let byte_3 = 0x00 + swid;
[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: this function has too many arguments (12/7)
[INFO] [stderr]    --> src/main.rs:170:5
[INFO] [stderr]     |
[INFO] [stderr] 170 | /     fn send_3_color(&mut self, di: u8, fi: u8, swid: u8, led_mode: u8, led_r: u8, led_g: u8, led_b: u8, cycle_a: u8, cycle_b: u8, cycle_c: u8, param: u8) {
[INFO] [stderr] 171 | |         let command_3 = 0x30 + swid;
[INFO] [stderr] 172 | |         let buf: [u8; 20] = [
[INFO] [stderr] 173 | |             0x11, di, fi, command_3, 0x00, led_mode, led_r, led_g,
[INFO] [stderr] ...   |
[INFO] [stderr] 180 | |         self.read_response(&mut resp);
[INFO] [stderr] 181 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::too_many_arguments)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#too_many_arguments
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/main.rs:369:12
[INFO] [stderr]     |
[INFO] [stderr] 369 |         if dpi_array.len() > 0 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!dpi_array.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: `if _ { .. } else { .. }` is an expression
[INFO] [stderr]    --> src/main.rs:414:13
[INFO] [stderr]     |
[INFO] [stderr] 414 | /             let mut range = packet.len();
[INFO] [stderr] 415 | |             if crc_count == 0xf0 {
[INFO] [stderr] 416 | |                 range = packet.len() - 2; // skip last 2 bytes
[INFO] [stderr] 417 | |             }
[INFO] [stderr]     | |_____________^ help: it is more idiomatic to write: `let <mut> range = if crc_count == 0xf0 { packet.len() - 2 } else { packet.len() };`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::useless_let_if_seq)] on by default
[INFO] [stderr]     = note: you might not need `mut` at all
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_let_if_seq
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `x` is only used to index `packet`.
[INFO] [stderr]    --> src/main.rs:418:22
[INFO] [stderr]     |
[INFO] [stderr] 418 |             for x in 0..range {
[INFO] [stderr]     |                      ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 418 |             for <item> in packet.iter().take(range) {
[INFO] [stderr]     |                 ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u16 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:442:15
[INFO] [stderr]     |
[INFO] [stderr] 442 |       crc ^= ((data as u16) << 8);
[INFO] [stderr]     |               ^^^^^^^^^^^^^ help: try: `u16::from(data)`
[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: the operation is ineffective. Consider reducing it to `((crc << 1) ^ 0x1021)`
[INFO] [stderr]    --> src/main.rs:445:21
[INFO] [stderr]     |
[INFO] [stderr] 445 |               crc = ((crc << 1) ^ 0x1021) & 0xFFFF;
[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]     Finished dev [unoptimized + debuginfo] target(s) in 4.78s
[INFO] running `"docker" "inspect" "daace5857f075e7501b12947e3ab8ec0e4b31692646aedcbb8eaa20675ac2400"`
[INFO] running `"docker" "rm" "-f" "daace5857f075e7501b12947e3ab8ec0e4b31692646aedcbb8eaa20675ac2400"`
[INFO] [stdout] daace5857f075e7501b12947e3ab8ec0e4b31692646aedcbb8eaa20675ac2400