[INFO] fetching crate qwiic-lcd-rs 0.1.11...
[INFO] building qwiic-lcd-rs-0.1.11 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate qwiic-lcd-rs 0.1.11 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate qwiic-lcd-rs 0.1.11
[INFO] finished tweaking crates.io crate qwiic-lcd-rs 0.1.11
[INFO] tweaked toml for crates.io crate qwiic-lcd-rs 0.1.11 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate qwiic-lcd-rs 0.1.11 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 14 packages to latest compatible versions
[INFO] [stderr]       Adding i2cdev v0.4.4 (available: v0.6.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3931fbfd60edd2bf17aafc5f309217b12a6b01e9b79709a4b395eb248d72b69e
[INFO] running `Command { std: "docker" "start" "-a" "3931fbfd60edd2bf17aafc5f309217b12a6b01e9b79709a4b395eb248d72b69e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3931fbfd60edd2bf17aafc5f309217b12a6b01e9b79709a4b395eb248d72b69e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3931fbfd60edd2bf17aafc5f309217b12a6b01e9b79709a4b395eb248d72b69e", kill_on_drop: false }`
[INFO] [stdout] 3931fbfd60edd2bf17aafc5f309217b12a6b01e9b79709a4b395eb248d72b69e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a4abfa3bd4b8a0b3c7770721f8907bafc3f28b03ef662ad120ae1067e41fedc2
[INFO] running `Command { std: "docker" "start" "-a" "a4abfa3bd4b8a0b3c7770721f8907bafc3f28b03ef662ad120ae1067e41fedc2", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling enum_primitive v0.1.1
[INFO] [stderr]    Compiling i2cdev v0.4.4
[INFO] [stderr]    Compiling qwiic-lcd-rs v0.1.11 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> src/lib.rs:188:26
[INFO] [stdout]     |
[INFO] [stdout] 188 |         self.write_block((Command::SettingCommand as u8), block)
[INFO] [stdout]     |                          ^                             ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 188 -         self.write_block((Command::SettingCommand as u8), block)
[INFO] [stdout] 188 +         self.write_block(Command::SettingCommand as u8, block)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/lib.rs:210:23
[INFO] [stdout]     |
[INFO] [stdout] 210 |         let command = ((Command::SetDDRamAddr as u8) | ((col + row_offsets[row]) as u8));
[INFO] [stdout]     |                       ^                                                                ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 210 -         let command = ((Command::SetDDRamAddr as u8) | ((col + row_offsets[row]) as u8));
[INFO] [stdout] 210 +         let command = (Command::SetDDRamAddr as u8) | ((col + row_offsets[row]) as u8);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> src/lib.rs:273:40
[INFO] [stdout]     |
[INFO] [stdout] 273 |         self.dev.smbus_write_byte_data((Command::SettingCommand as u8), command)?;
[INFO] [stdout]     |                                        ^                             ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 273 -         self.dev.smbus_write_byte_data((Command::SettingCommand as u8), command)?;
[INFO] [stdout] 273 +         self.dev.smbus_write_byte_data(Command::SettingCommand as u8, command)?;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> src/lib.rs:279:40
[INFO] [stdout]     |
[INFO] [stdout] 279 |         self.dev.smbus_write_byte_data((Command::SpecialCommand as u8), command)?;
[INFO] [stdout]     |                                        ^                             ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 279 -         self.dev.smbus_write_byte_data((Command::SpecialCommand as u8), command)?;
[INFO] [stdout] 279 +         self.dev.smbus_write_byte_data(Command::SpecialCommand as u8, command)?;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/lib.rs:286:24
[INFO] [stdout]     |
[INFO] [stdout] 286 |     return usize::from(((x-in_min) * (out_max-out_min) / (in_max-in_min) + out_min));
[INFO] [stdout]     |                        ^                                                          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 286 -     return usize::from(((x-in_min) * (out_max-out_min) / (in_max-in_min) + out_min));
[INFO] [stdout] 286 +     return usize::from((x-in_min) * (out_max-out_min) / (in_max-in_min) + out_min);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max_rows`
[INFO] [stdout]    --> src/lib.rs:117:16
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn new(max_rows: u8, max_columns: u8) -> ScreenConfig {
[INFO] [stdout]     |                ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_rows`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max_columns`
[INFO] [stdout]    --> src/lib.rs:117:30
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn new(max_rows: u8, max_columns: u8) -> ScreenConfig {
[INFO] [stdout]     |                              ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_columns`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:192:9
[INFO] [stdout]     |
[INFO] [stdout] 192 |         self.write_setting_cmd(Command::ClearDisplay as u8);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 192 |         let _ = self.write_setting_cmd(Command::ClearDisplay as u8);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/lib.rs:203:49
[INFO] [stdout]     |
[INFO] [stdout] 203 |         if row > self.config.max_rows.into() || row < 0 {
[INFO] [stdout]     |                                                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/lib.rs:206:52
[INFO] [stdout]     |
[INFO] [stdout] 206 |         if col > self.config.max_columns.into() || col < 0 {
[INFO] [stdout]     |                                                    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.16s
[INFO] running `Command { std: "docker" "inspect" "a4abfa3bd4b8a0b3c7770721f8907bafc3f28b03ef662ad120ae1067e41fedc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4abfa3bd4b8a0b3c7770721f8907bafc3f28b03ef662ad120ae1067e41fedc2", kill_on_drop: false }`
[INFO] [stdout] a4abfa3bd4b8a0b3c7770721f8907bafc3f28b03ef662ad120ae1067e41fedc2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5be86fa557fc21e4d2a22f9423cfc74ed340a727333d257752586f7d0c769d1b
[INFO] running `Command { std: "docker" "start" "-a" "5be86fa557fc21e4d2a22f9423cfc74ed340a727333d257752586f7d0c769d1b", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> src/lib.rs:188:26
[INFO] [stdout]     |
[INFO] [stdout] 188 |         self.write_block((Command::SettingCommand as u8), block)
[INFO] [stdout]     |                          ^                             ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 188 -         self.write_block((Command::SettingCommand as u8), block)
[INFO] [stdout] 188 +         self.write_block(Command::SettingCommand as u8, block)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/lib.rs:210:23
[INFO] [stdout]     |
[INFO] [stdout] 210 |         let command = ((Command::SetDDRamAddr as u8) | ((col + row_offsets[row]) as u8));
[INFO] [stdout]     |                       ^                                                                ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 210 -         let command = ((Command::SetDDRamAddr as u8) | ((col + row_offsets[row]) as u8));
[INFO] [stdout] 210 +         let command = (Command::SetDDRamAddr as u8) | ((col + row_offsets[row]) as u8);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> src/lib.rs:273:40
[INFO] [stdout]     |
[INFO] [stdout] 273 |         self.dev.smbus_write_byte_data((Command::SettingCommand as u8), command)?;
[INFO] [stdout]     |                                        ^                             ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 273 -         self.dev.smbus_write_byte_data((Command::SettingCommand as u8), command)?;
[INFO] [stdout] 273 +         self.dev.smbus_write_byte_data(Command::SettingCommand as u8, command)?;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling qwiic-lcd-rs v0.1.11 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> src/lib.rs:279:40
[INFO] [stdout]     |
[INFO] [stdout] 279 |         self.dev.smbus_write_byte_data((Command::SpecialCommand as u8), command)?;
[INFO] [stdout]     |                                        ^                             ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 279 -         self.dev.smbus_write_byte_data((Command::SpecialCommand as u8), command)?;
[INFO] [stdout] 279 +         self.dev.smbus_write_byte_data(Command::SpecialCommand as u8, command)?;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/lib.rs:286:24
[INFO] [stdout]     |
[INFO] [stdout] 286 |     return usize::from(((x-in_min) * (out_max-out_min) / (in_max-in_min) + out_min));
[INFO] [stdout]     |                        ^                                                          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 286 -     return usize::from(((x-in_min) * (out_max-out_min) / (in_max-in_min) + out_min));
[INFO] [stdout] 286 +     return usize::from((x-in_min) * (out_max-out_min) / (in_max-in_min) + out_min);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max_rows`
[INFO] [stdout]    --> src/lib.rs:117:16
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn new(max_rows: u8, max_columns: u8) -> ScreenConfig {
[INFO] [stdout]     |                ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_rows`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max_columns`
[INFO] [stdout]    --> src/lib.rs:117:30
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn new(max_rows: u8, max_columns: u8) -> ScreenConfig {
[INFO] [stdout]     |                              ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_columns`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:192:9
[INFO] [stdout]     |
[INFO] [stdout] 192 |         self.write_setting_cmd(Command::ClearDisplay as u8);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 192 |         let _ = self.write_setting_cmd(Command::ClearDisplay as u8);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/lib.rs:203:49
[INFO] [stdout]     |
[INFO] [stdout] 203 |         if row > self.config.max_rows.into() || row < 0 {
[INFO] [stdout]     |                                                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/lib.rs:206:52
[INFO] [stdout]     |
[INFO] [stdout] 206 |         if col > self.config.max_columns.into() || col < 0 {
[INFO] [stdout]     |                                                    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> src/lib.rs:188:26
[INFO] [stdout]     |
[INFO] [stdout] 188 |         self.write_block((Command::SettingCommand as u8), block)
[INFO] [stdout]     |                          ^                             ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 188 -         self.write_block((Command::SettingCommand as u8), block)
[INFO] [stdout] 188 +         self.write_block(Command::SettingCommand as u8, block)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/lib.rs:210:23
[INFO] [stdout]     |
[INFO] [stdout] 210 |         let command = ((Command::SetDDRamAddr as u8) | ((col + row_offsets[row]) as u8));
[INFO] [stdout]     |                       ^                                                                ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 210 -         let command = ((Command::SetDDRamAddr as u8) | ((col + row_offsets[row]) as u8));
[INFO] [stdout] 210 +         let command = (Command::SetDDRamAddr as u8) | ((col + row_offsets[row]) as u8);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> src/lib.rs:273:40
[INFO] [stdout]     |
[INFO] [stdout] 273 |         self.dev.smbus_write_byte_data((Command::SettingCommand as u8), command)?;
[INFO] [stdout]     |                                        ^                             ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 273 -         self.dev.smbus_write_byte_data((Command::SettingCommand as u8), command)?;
[INFO] [stdout] 273 +         self.dev.smbus_write_byte_data(Command::SettingCommand as u8, command)?;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> src/lib.rs:279:40
[INFO] [stdout]     |
[INFO] [stdout] 279 |         self.dev.smbus_write_byte_data((Command::SpecialCommand as u8), command)?;
[INFO] [stdout]     |                                        ^                             ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 279 -         self.dev.smbus_write_byte_data((Command::SpecialCommand as u8), command)?;
[INFO] [stdout] 279 +         self.dev.smbus_write_byte_data(Command::SpecialCommand as u8, command)?;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/lib.rs:286:24
[INFO] [stdout]     |
[INFO] [stdout] 286 |     return usize::from(((x-in_min) * (out_max-out_min) / (in_max-in_min) + out_min));
[INFO] [stdout]     |                        ^                                                          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 286 -     return usize::from(((x-in_min) * (out_max-out_min) / (in_max-in_min) + out_min));
[INFO] [stdout] 286 +     return usize::from((x-in_min) * (out_max-out_min) / (in_max-in_min) + out_min);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max_rows`
[INFO] [stdout]    --> src/lib.rs:117:16
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn new(max_rows: u8, max_columns: u8) -> ScreenConfig {
[INFO] [stdout]     |                ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_rows`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max_columns`
[INFO] [stdout]    --> src/lib.rs:117:30
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn new(max_rows: u8, max_columns: u8) -> ScreenConfig {
[INFO] [stdout]     |                              ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_columns`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:192:9
[INFO] [stdout]     |
[INFO] [stdout] 192 |         self.write_setting_cmd(Command::ClearDisplay as u8);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 192 |         let _ = self.write_setting_cmd(Command::ClearDisplay as u8);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/lib.rs:203:49
[INFO] [stdout]     |
[INFO] [stdout] 203 |         if row > self.config.max_rows.into() || row < 0 {
[INFO] [stdout]     |                                                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/lib.rs:206:52
[INFO] [stdout]     |
[INFO] [stdout] 206 |         if col > self.config.max_columns.into() || col < 0 {
[INFO] [stdout]     |                                                    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "5be86fa557fc21e4d2a22f9423cfc74ed340a727333d257752586f7d0c769d1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5be86fa557fc21e4d2a22f9423cfc74ed340a727333d257752586f7d0c769d1b", kill_on_drop: false }`
[INFO] [stdout] 5be86fa557fc21e4d2a22f9423cfc74ed340a727333d257752586f7d0c769d1b