[INFO] fetching crate qwiic-lcd-rs 0.1.1... [INFO] testing qwiic-lcd-rs-0.1.1 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799 [INFO] extracting crate qwiic-lcd-rs 0.1.1 into /workspace/builds/worker-84/source [INFO] validating manifest of crates.io crate qwiic-lcd-rs 0.1.1 on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate qwiic-lcd-rs 0.1.1 [INFO] finished tweaking crates.io crate qwiic-lcd-rs 0.1.1 [INFO] tweaked toml for crates.io crate qwiic-lcd-rs 0.1.1 written to /workspace/builds/worker-84/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e0397caf7a13544e5b2dab6d9f4e826ac32971746eba1c1f88f562e0d0541e3c [INFO] running `Command { std: "docker" "start" "-a" "e0397caf7a13544e5b2dab6d9f4e826ac32971746eba1c1f88f562e0d0541e3c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e0397caf7a13544e5b2dab6d9f4e826ac32971746eba1c1f88f562e0d0541e3c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e0397caf7a13544e5b2dab6d9f4e826ac32971746eba1c1f88f562e0d0541e3c", kill_on_drop: false }` [INFO] [stdout] e0397caf7a13544e5b2dab6d9f4e826ac32971746eba1c1f88f562e0d0541e3c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ef2ccacc8731fa87dbc1043f8e941f0f3fff84b5b437bb74e5a3b90e3ecdd918 [INFO] running `Command { std: "docker" "start" "-a" "ef2ccacc8731fa87dbc1043f8e941f0f3fff84b5b437bb74e5a3b90e3ecdd918", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling libc v0.2.108 [INFO] [stderr] Compiling nix v0.14.1 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling void v1.0.2 [INFO] [stderr] Compiling num-traits v0.2.14 [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 v0.1.1 (/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)]` 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)]` 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: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [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: 10 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 6.51s [INFO] running `Command { std: "docker" "inspect" "ef2ccacc8731fa87dbc1043f8e941f0f3fff84b5b437bb74e5a3b90e3ecdd918", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ef2ccacc8731fa87dbc1043f8e941f0f3fff84b5b437bb74e5a3b90e3ecdd918", kill_on_drop: false }` [INFO] [stdout] ef2ccacc8731fa87dbc1043f8e941f0f3fff84b5b437bb74e5a3b90e3ecdd918 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7e488474c8ce3271d06b7efd0321d5d562445a166dbb5b8ea484959a9d96cc65 [INFO] running `Command { std: "docker" "start" "-a" "7e488474c8ce3271d06b7efd0321d5d562445a166dbb5b8ea484959a9d96cc65", kill_on_drop: false }` [INFO] [stderr] Compiling qwiic-lcd-rs v0.1.1 (/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)]` 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)]` 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: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [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: 10 warnings emitted [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)]` 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)]` 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: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [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: 10 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.81s [INFO] running `Command { std: "docker" "inspect" "7e488474c8ce3271d06b7efd0321d5d562445a166dbb5b8ea484959a9d96cc65", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7e488474c8ce3271d06b7efd0321d5d562445a166dbb5b8ea484959a9d96cc65", kill_on_drop: false }` [INFO] [stdout] 7e488474c8ce3271d06b7efd0321d5d562445a166dbb5b8ea484959a9d96cc65 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] e4d021233ea42dd4907e1571a7204fc734f7995dbd9bd18c9ead237d6a814e0a [INFO] running `Command { std: "docker" "start" "-a" "e4d021233ea42dd4907e1571a7204fc734f7995dbd9bd18c9ead237d6a814e0a", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: unnecessary parentheses around method argument [INFO] [stderr] --> src/lib.rs:188:26 [INFO] [stderr] | [INFO] [stderr] 188 | self.write_block((Command::SettingCommand as u8), block) [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 188 - self.write_block((Command::SettingCommand as u8), block) [INFO] [stderr] 188 + self.write_block(Command::SettingCommand as u8, block) [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around assigned value [INFO] [stderr] --> src/lib.rs:210:23 [INFO] [stderr] | [INFO] [stderr] 210 | let command = ((Command::SetDDRamAddr as u8) | ((col + row_offsets[row]) as u8)); [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 210 - let command = ((Command::SetDDRamAddr as u8) | ((col + row_offsets[row]) as u8)); [INFO] [stderr] 210 + let command = (Command::SetDDRamAddr as u8) | ((col + row_offsets[row]) as u8); [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around method argument [INFO] [stderr] --> src/lib.rs:273:40 [INFO] [stderr] | [INFO] [stderr] 273 | self.dev.smbus_write_byte_data((Command::SettingCommand as u8), command)?; [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 273 - self.dev.smbus_write_byte_data((Command::SettingCommand as u8), command)?; [INFO] [stderr] 273 + self.dev.smbus_write_byte_data(Command::SettingCommand as u8, command)?; [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around method argument [INFO] [stderr] --> src/lib.rs:279:40 [INFO] [stderr] | [INFO] [stderr] 279 | self.dev.smbus_write_byte_data((Command::SpecialCommand as u8), command)?; [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 279 - self.dev.smbus_write_byte_data((Command::SpecialCommand as u8), command)?; [INFO] [stderr] 279 + self.dev.smbus_write_byte_data(Command::SpecialCommand as u8, command)?; [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> src/lib.rs:286:24 [INFO] [stderr] | [INFO] [stderr] 286 | return usize::from(((x-in_min) * (out_max-out_min) / (in_max-in_min) + out_min)); [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 286 - return usize::from(((x-in_min) * (out_max-out_min) / (in_max-in_min) + out_min)); [INFO] [stderr] 286 + return usize::from((x-in_min) * (out_max-out_min) / (in_max-in_min) + out_min); [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unused variable: `max_rows` [INFO] [stderr] --> src/lib.rs:117:16 [INFO] [stderr] | [INFO] [stderr] 117 | pub fn new(max_rows: u8, max_columns: u8) -> ScreenConfig { [INFO] [stderr] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_rows` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `max_columns` [INFO] [stderr] --> src/lib.rs:117:30 [INFO] [stderr] | [INFO] [stderr] 117 | pub fn new(max_rows: u8, max_columns: u8) -> ScreenConfig { [INFO] [stderr] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_columns` [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/lib.rs:192:9 [INFO] [stderr] | [INFO] [stderr] 192 | self.write_setting_cmd(Command::ClearDisplay as u8); [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: comparison is useless due to type limits [INFO] [stderr] --> src/lib.rs:203:49 [INFO] [stderr] | [INFO] [stderr] 203 | if row > self.config.max_rows.into() || row < 0 { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_comparisons)]` on by default [INFO] [stderr] [INFO] [stderr] warning: comparison is useless due to type limits [INFO] [stderr] --> src/lib.rs:206:52 [INFO] [stderr] | [INFO] [stderr] 206 | if col > self.config.max_columns.into() || col < 0 { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `qwiic-lcd-rs` (lib) generated 10 warnings [INFO] [stderr] warning: `qwiic-lcd-rs` (lib test) generated 10 warnings (10 duplicates) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.96s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/qwiic_lcd_rs-e32781747da26deb) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test tests::test_init ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- tests::test_init stdout ---- [INFO] [stdout] thread 'tests::test_init' panicked at 'Could not init device: Io(Os { code: 2, kind: NotFound, message: "No such file or directory" })', src/lib.rs:298:66 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x557a7568244c - std::backtrace_rs::backtrace::libunwind::trace::h793e05efd273d0f4 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5 [INFO] [stdout] 1: 0x557a7568244c - std::backtrace_rs::backtrace::trace_unsynchronized::h640b7b86ff610c77 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x557a7568244c - std::sys_common::backtrace::_print_fmt::h362fa2a4f354f877 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stdout] 3: 0x557a7568244c - ::fmt::hf439e5ed84c74abd [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stdout] 4: 0x557a756a519c - core::fmt::write::h72801a82c94e6ff1 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/fmt/mod.rs:1149:17 [INFO] [stdout] 5: 0x557a7567e3f5 - std::io::Write::write_fmt::h54337adeb3504c03 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/io/mod.rs:1697:15 [INFO] [stdout] 6: 0x557a75683ea0 - std::sys_common::backtrace::_print::hb29ddd998d02631c [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stdout] 7: 0x557a75683ea0 - std::sys_common::backtrace::print::h81965e3d7c90fbb6 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stdout] 8: 0x557a75683ea0 - std::panicking::default_hook::{{closure}}::h84db205ab6674b38 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:211:50 [INFO] [stdout] 9: 0x557a75683a86 - std::panicking::default_hook::h1bf8bb4159936bca [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:225:9 [INFO] [stdout] 10: 0x557a75684554 - std::panicking::rust_panic_with_hook::hf8e86850fbbd03b1 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:606:17 [INFO] [stdout] 11: 0x557a75684030 - std::panicking::begin_panic_handler::{{closure}}::h590a0d6060ff866e [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:502:13 [INFO] [stdout] 12: 0x557a75682904 - std::sys_common::backtrace::__rust_end_short_backtrace::h260b8bd1c848a03c [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:139:18 [INFO] [stdout] 13: 0x557a75683f99 - rust_begin_unwind [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:498:5 [INFO] [stdout] 14: 0x557a75622871 - core::panicking::panic_fmt::h7b8580d81fcbbacd [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/panicking.rs:106:14 [INFO] [stdout] 15: 0x557a75622963 - core::result::unwrap_failed::h885d3f7beb571353 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/result.rs:1613:5 [INFO] [stdout] 16: 0x557a75625f54 - core::result::Result::expect::hbbf34e4cf4c782b0 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/result.rs:1255:23 [INFO] [stdout] 17: 0x557a75626ead - qwiic_lcd_rs::tests::test_init::hb768cd658975cd77 [INFO] [stdout] at /opt/rustwide/workdir/src/lib.rs:298:26 [INFO] [stdout] 18: 0x557a75626e1a - qwiic_lcd_rs::tests::test_init::{{closure}}::h6662700fde3d5ba1 [INFO] [stdout] at /opt/rustwide/workdir/src/lib.rs:294:5 [INFO] [stdout] 19: 0x557a7562516e - core::ops::function::FnOnce::call_once::hc9f7ae6ffd3942e7 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 20: 0x557a7565ba13 - core::ops::function::FnOnce::call_once::h24a32b9da1a40fdb [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 21: 0x557a7565ba13 - test::__rust_begin_short_backtrace::h3c3a0492fb4a12eb [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:585:5 [INFO] [stdout] 22: 0x557a7565a627 - as core::ops::function::FnOnce>::call_once::h9a8e38435f73d5e0 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/alloc/src/boxed.rs:1694:9 [INFO] [stdout] 23: 0x557a7565a627 - as core::ops::function::FnOnce<()>>::call_once::hb23d7496a0e6d1b4 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 24: 0x557a7565a627 - std::panicking::try::do_call::ha2bb9825b32d2cc2 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:406:40 [INFO] [stdout] 25: 0x557a7565a627 - std::panicking::try::hdc38a574bbebc53e [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:370:19 [INFO] [stdout] 26: 0x557a7565a627 - std::panic::catch_unwind::hc45ed246595c621c [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panic.rs:133:14 [INFO] [stdout] 27: 0x557a7565a627 - test::run_test_in_process::h4249138faaea8d54 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:608:18 [INFO] [stdout] 28: 0x557a7565a627 - test::run_test::run_test_inner::{{closure}}::h3c1b37669f6e9fd7 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:500:39 [INFO] [stdout] 29: 0x557a756278ce - test::run_test::run_test_inner::{{closure}}::h388760469edd5c24 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:527:37 [INFO] [stdout] 30: 0x557a756278ce - std::sys_common::backtrace::__rust_begin_short_backtrace::hbbaecdcfad18643e [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:123:18 [INFO] [stdout] 31: 0x557a7562c628 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h09cd3ca65896da91 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/thread/mod.rs:484:17 [INFO] [stdout] 32: 0x557a7562c628 - as core::ops::function::FnOnce<()>>::call_once::hc52dbb4f9088d18b [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 33: 0x557a7562c628 - std::panicking::try::do_call::h4485cfee22b11c08 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:406:40 [INFO] [stdout] 34: 0x557a7562c628 - std::panicking::try::hb62aa8549e20c08b [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:370:19 [INFO] [stdout] 35: 0x557a7562c628 - std::panic::catch_unwind::ha322c7a5bc666762 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panic.rs:133:14 [INFO] [stdout] 36: 0x557a7562c628 - std::thread::Builder::spawn_unchecked::{{closure}}::h1076fc1398603b77 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/thread/mod.rs:483:30 [INFO] [stdout] 37: 0x557a7562c628 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h911e510344167353 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 38: 0x557a75689003 - as core::ops::function::FnOnce>::call_once::h771719d52c343434 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/alloc/src/boxed.rs:1694:9 [INFO] [stdout] 39: 0x557a75689003 - as core::ops::function::FnOnce>::call_once::hf441746dfa4b0f57 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/alloc/src/boxed.rs:1694:9 [INFO] [stdout] 40: 0x557a75689003 - std::sys::unix::thread::Thread::new::thread_start::hfd168f9d312b29ca [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys/unix/thread.rs:106:17 [INFO] [stdout] 41: 0x7fdba891e609 - start_thread [INFO] [stdout] 42: 0x7fdba86f0293 - clone [INFO] [stdout] 43: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] tests::test_init [INFO] [stdout] [INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--lib' [INFO] running `Command { std: "docker" "inspect" "e4d021233ea42dd4907e1571a7204fc734f7995dbd9bd18c9ead237d6a814e0a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e4d021233ea42dd4907e1571a7204fc734f7995dbd9bd18c9ead237d6a814e0a", kill_on_drop: false }` [INFO] [stdout] e4d021233ea42dd4907e1571a7204fc734f7995dbd9bd18c9ead237d6a814e0a