[INFO] fetching crate ufire_iso_ise 0.9.0...
[INFO] documenting ufire_iso_ise-0.9.0 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate ufire_iso_ise 0.9.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate ufire_iso_ise 0.9.0 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ufire_iso_ise 0.9.0
[INFO] finished tweaking crates.io crate ufire_iso_ise 0.9.0
[INFO] tweaked toml for crates.io crate ufire_iso_ise 0.9.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+1.69.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded shrust v0.0.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7ca7eb39c163ea2bd3097bbbfbb9daeea22f2695aef1f0ef5a641aaedceecbe0
[INFO] running `Command { std: "docker" "start" "-a" "7ca7eb39c163ea2bd3097bbbfbb9daeea22f2695aef1f0ef5a641aaedceecbe0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ca7eb39c163ea2bd3097bbbfbb9daeea22f2695aef1f0ef5a641aaedceecbe0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ca7eb39c163ea2bd3097bbbfbb9daeea22f2695aef1f0ef5a641aaedceecbe0", kill_on_drop: false }`
[INFO] [stdout] 7ca7eb39c163ea2bd3097bbbfbb9daeea22f2695aef1f0ef5a641aaedceecbe0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1c8bcef4c174c2a03f93a1853426438083ba88d7244d4ac2fa30565e3940a04
[INFO] running `Command { std: "docker" "start" "-a" "f1c8bcef4c174c2a03f93a1853426438083ba88d7244d4ac2fa30565e3940a04", kill_on_drop: false }`
[INFO] [stderr]    Compiling io-lifetimes v1.0.10
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]    Compiling camino v1.1.4
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]    Compiling semver v1.0.17
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling serde_derive v1.0.160
[INFO] [stderr]    Compiling rustix v0.37.18
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling ryu v1.0.13
[INFO] [stderr]    Compiling linux-raw-sys v0.3.6
[INFO] [stderr]    Compiling itoa v1.0.6
[INFO] [stderr]    Compiling pulldown-cmark v0.9.2
[INFO] [stderr]    Compiling fastrand v1.9.0
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling walkdir v2.3.3
[INFO] [stderr]    Compiling bytecount v0.6.3
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking encode_unicode v0.3.6
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stderr]    Compiling tempfile v3.5.0
[INFO] [stderr]     Checking csv v1.2.1
[INFO] [stderr]     Checking prettytable-rs v0.8.0
[INFO] [stderr]    Compiling cargo-platform v0.1.2
[INFO] [stderr]     Checking shrust v0.0.6
[INFO] [stderr]    Compiling cargo_metadata v0.14.2
[INFO] [stderr]    Compiling skeptic v0.13.7
[INFO] [stderr]    Compiling i2cdev v0.3.2
[INFO] [stderr]     Checking ufire_iso_ise v0.9.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting ufire_iso_ise v0.9.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:75:44
[INFO] [stdout]    |
[INFO] [stdout] 75 |     pub fn measure_mv(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]    |                                            ^   ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 75 -     pub fn measure_mv(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout] 75 +     pub fn measure_mv(&mut self) -> Result<f32, Box<LinuxI2CError>> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:75:44
[INFO] [stdout]    |
[INFO] [stdout] 75 |     pub fn measure_mv(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]    |                                            ^   ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 75 -     pub fn measure_mv(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout] 75 +     pub fn measure_mv(&mut self) -> Result<f32, Box<LinuxI2CError>> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:100:56
[INFO] [stdout]     |
[INFO] [stdout] 100 |     pub fn measure_ph(&mut self, temp_c:f32) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                                        ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 100 -     pub fn measure_ph(&mut self, temp_c:f32) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout] 100 +     pub fn measure_ph(&mut self, temp_c:f32) -> Result<f32, Box<LinuxI2CError>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:149:51
[INFO] [stdout]     |
[INFO] [stdout] 149 |     pub fn ph_to_mv(&mut self, ph: f32) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                                   ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 149 -     pub fn ph_to_mv(&mut self, ph: f32) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout] 149 +     pub fn ph_to_mv(&mut self, ph: f32) -> Result<f32, Box<LinuxI2CError>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:100:56
[INFO] [stdout]     |
[INFO] [stdout] 100 |     pub fn measure_ph(&mut self, temp_c:f32) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                                        ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 100 -     pub fn measure_ph(&mut self, temp_c:f32) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout] 100 +     pub fn measure_ph(&mut self, temp_c:f32) -> Result<f32, Box<LinuxI2CError>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:160:46
[INFO] [stdout]     |
[INFO] [stdout] 160 |     pub fn measure_temp(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                              ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 160 -     pub fn measure_temp(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout] 160 +     pub fn measure_temp(&mut self) -> Result<f32, Box<LinuxI2CError>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:149:51
[INFO] [stdout]     |
[INFO] [stdout] 149 |     pub fn ph_to_mv(&mut self, ph: f32) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                                   ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 149 -     pub fn ph_to_mv(&mut self, ph: f32) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout] 149 +     pub fn ph_to_mv(&mut self, ph: f32) -> Result<f32, Box<LinuxI2CError>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:254:54
[INFO] [stdout]     |
[INFO] [stdout] 254 |     pub fn get_calibrate_offset(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                                      ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 254 -     pub fn get_calibrate_offset(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout] 254 +     pub fn get_calibrate_offset(&mut self) -> Result<f32, Box<LinuxI2CError>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:160:46
[INFO] [stdout]     |
[INFO] [stdout] 160 |     pub fn measure_temp(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                              ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 160 -     pub fn measure_temp(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout] 160 +     pub fn measure_temp(&mut self) -> Result<f32, Box<LinuxI2CError>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:254:54
[INFO] [stdout]     |
[INFO] [stdout] 254 |     pub fn get_calibrate_offset(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                                      ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 254 -     pub fn get_calibrate_offset(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout] 254 +     pub fn get_calibrate_offset(&mut self) -> Result<f32, Box<LinuxI2CError>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:265:62
[INFO] [stdout]     |
[INFO] [stdout] 265 |     pub fn get_calibrate_high_reference(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                                              ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 265 -     pub fn get_calibrate_high_reference(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout] 265 +     pub fn get_calibrate_high_reference(&mut self) -> Result<f32, Box<LinuxI2CError>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:265:62
[INFO] [stdout]     |
[INFO] [stdout] 265 |     pub fn get_calibrate_high_reference(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                                              ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 265 -     pub fn get_calibrate_high_reference(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout] 265 +     pub fn get_calibrate_high_reference(&mut self) -> Result<f32, Box<LinuxI2CError>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:277:60
[INFO] [stdout]     |
[INFO] [stdout] 277 |     pub fn get_calibrate_high_reading(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                                            ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 277 -     pub fn get_calibrate_high_reading(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout] 277 +     pub fn get_calibrate_high_reading(&mut self) -> Result<f32, Box<LinuxI2CError>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:277:60
[INFO] [stdout]     |
[INFO] [stdout] 277 |     pub fn get_calibrate_high_reading(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                                            ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 277 -     pub fn get_calibrate_high_reading(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout] 277 +     pub fn get_calibrate_high_reading(&mut self) -> Result<f32, Box<LinuxI2CError>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:289:61
[INFO] [stdout]     |
[INFO] [stdout] 289 |     pub fn get_calibrate_low_reference(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                                             ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 289 -     pub fn get_calibrate_low_reference(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout] 289 +     pub fn get_calibrate_low_reference(&mut self) -> Result<f32, Box<LinuxI2CError>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:289:61
[INFO] [stdout]     |
[INFO] [stdout] 289 |     pub fn get_calibrate_low_reference(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                                             ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 289 -     pub fn get_calibrate_low_reference(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout] 289 +     pub fn get_calibrate_low_reference(&mut self) -> Result<f32, Box<LinuxI2CError>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:301:59
[INFO] [stdout]     |
[INFO] [stdout] 301 |     pub fn get_calibrate_low_reading(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                                           ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 301 -     pub fn get_calibrate_low_reading(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout] 301 +     pub fn get_calibrate_low_reading(&mut self) -> Result<f32, Box<LinuxI2CError>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:312:45
[INFO] [stdout]     |
[INFO] [stdout] 312 |     pub fn get_version(&mut self) -> Result<(u8), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                             ^  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 312 -     pub fn get_version(&mut self) -> Result<(u8), Box<LinuxI2CError>> {
[INFO] [stdout] 312 +     pub fn get_version(&mut self) -> Result<u8, Box<LinuxI2CError>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:301:59
[INFO] [stdout]     |
[INFO] [stdout] 301 |     pub fn get_calibrate_low_reading(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                                           ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 301 -     pub fn get_calibrate_low_reading(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout] 301 +     pub fn get_calibrate_low_reading(&mut self) -> Result<f32, Box<LinuxI2CError>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:312:45
[INFO] [stdout]     |
[INFO] [stdout] 312 |     pub fn get_version(&mut self) -> Result<(u8), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                             ^  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 312 -     pub fn get_version(&mut self) -> Result<(u8), Box<LinuxI2CError>> {
[INFO] [stdout] 312 +     pub fn get_version(&mut self) -> Result<u8, Box<LinuxI2CError>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:325:46
[INFO] [stdout]     |
[INFO] [stdout] 325 |     pub fn get_firmware(&mut self) -> Result<(u8), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                              ^  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 325 -     pub fn get_firmware(&mut self) -> Result<(u8), Box<LinuxI2CError>> {
[INFO] [stdout] 325 +     pub fn get_firmware(&mut self) -> Result<u8, Box<LinuxI2CError>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:325:46
[INFO] [stdout]     |
[INFO] [stdout] 325 |     pub fn get_firmware(&mut self) -> Result<(u8), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                              ^  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 325 -     pub fn get_firmware(&mut self) -> Result<(u8), Box<LinuxI2CError>> {
[INFO] [stdout] 325 +     pub fn get_firmware(&mut self) -> Result<u8, Box<LinuxI2CError>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:374:58
[INFO] [stdout]     |
[INFO] [stdout] 374 |     pub fn read_eeprom(&mut self, address: u8) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                                          ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 374 -     pub fn read_eeprom(&mut self, address: u8) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout] 374 +     pub fn read_eeprom(&mut self, address: u8) -> Result<f32, Box<LinuxI2CError>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:408:53
[INFO] [stdout]     |
[INFO] [stdout] 408 |     pub fn get_probe_potential(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                                     ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 408 -     pub fn get_probe_potential(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout] 408 +     pub fn get_probe_potential(&mut self) -> Result<f32, Box<LinuxI2CError>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:374:58
[INFO] [stdout]     |
[INFO] [stdout] 374 |     pub fn read_eeprom(&mut self, address: u8) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                                          ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 374 -     pub fn read_eeprom(&mut self, address: u8) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout] 374 +     pub fn read_eeprom(&mut self, address: u8) -> Result<f32, Box<LinuxI2CError>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:441:62
[INFO] [stdout]     |
[INFO] [stdout] 441 |     pub fn _read_register(&mut self, register: u8) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                                              ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 441 -     pub fn _read_register(&mut self, register: u8) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout] 441 +     pub fn _read_register(&mut self, register: u8) -> Result<f32, Box<LinuxI2CError>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:408:53
[INFO] [stdout]     |
[INFO] [stdout] 408 |     pub fn get_probe_potential(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                                     ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 408 -     pub fn get_probe_potential(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout] 408 +     pub fn get_probe_potential(&mut self) -> Result<f32, Box<LinuxI2CError>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:441:62
[INFO] [stdout]     |
[INFO] [stdout] 441 |     pub fn _read_register(&mut self, register: u8) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                                              ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 441 -     pub fn _read_register(&mut self, register: u8) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout] 441 +     pub fn _read_register(&mut self, register: u8) -> Result<f32, Box<LinuxI2CError>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.06s
[INFO] running `Command { std: "docker" "inspect" "f1c8bcef4c174c2a03f93a1853426438083ba88d7244d4ac2fa30565e3940a04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1c8bcef4c174c2a03f93a1853426438083ba88d7244d4ac2fa30565e3940a04", kill_on_drop: false }`
[INFO] [stdout] f1c8bcef4c174c2a03f93a1853426438083ba88d7244d4ac2fa30565e3940a04
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=1" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "rustdoc" "--lib" "-Zrustdoc-map" "-Z" "unstable-options" "--config" "build.rustdocflags=[\"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] add0a911d2724c565234903d6c0d02f8593eb73149ddcae67e8cfc3c615617b0
[INFO] running `Command { std: "docker" "start" "-a" "add0a911d2724c565234903d6c0d02f8593eb73149ddcae67e8cfc3c615617b0", kill_on_drop: false }`
[INFO] [stderr]  Documenting ufire_iso_ise v0.9.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:75:44
[INFO] [stdout]    |
[INFO] [stdout] 75 |     pub fn measure_mv(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]    |                                            ^   ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 75 -     pub fn measure_mv(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout] 75 +     pub fn measure_mv(&mut self) -> Result<f32, Box<LinuxI2CError>> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:100:56
[INFO] [stdout]     |
[INFO] [stdout] 100 |     pub fn measure_ph(&mut self, temp_c:f32) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                                        ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 100 -     pub fn measure_ph(&mut self, temp_c:f32) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout] 100 +     pub fn measure_ph(&mut self, temp_c:f32) -> Result<f32, Box<LinuxI2CError>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:149:51
[INFO] [stdout]     |
[INFO] [stdout] 149 |     pub fn ph_to_mv(&mut self, ph: f32) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                                   ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 149 -     pub fn ph_to_mv(&mut self, ph: f32) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout] 149 +     pub fn ph_to_mv(&mut self, ph: f32) -> Result<f32, Box<LinuxI2CError>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:160:46
[INFO] [stdout]     |
[INFO] [stdout] 160 |     pub fn measure_temp(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                              ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 160 -     pub fn measure_temp(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout] 160 +     pub fn measure_temp(&mut self) -> Result<f32, Box<LinuxI2CError>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:254:54
[INFO] [stdout]     |
[INFO] [stdout] 254 |     pub fn get_calibrate_offset(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                                      ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 254 -     pub fn get_calibrate_offset(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout] 254 +     pub fn get_calibrate_offset(&mut self) -> Result<f32, Box<LinuxI2CError>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:265:62
[INFO] [stdout]     |
[INFO] [stdout] 265 |     pub fn get_calibrate_high_reference(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                                              ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 265 -     pub fn get_calibrate_high_reference(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout] 265 +     pub fn get_calibrate_high_reference(&mut self) -> Result<f32, Box<LinuxI2CError>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:277:60
[INFO] [stdout]     |
[INFO] [stdout] 277 |     pub fn get_calibrate_high_reading(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                                            ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 277 -     pub fn get_calibrate_high_reading(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout] 277 +     pub fn get_calibrate_high_reading(&mut self) -> Result<f32, Box<LinuxI2CError>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:289:61
[INFO] [stdout]     |
[INFO] [stdout] 289 |     pub fn get_calibrate_low_reference(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                                             ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 289 -     pub fn get_calibrate_low_reference(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout] 289 +     pub fn get_calibrate_low_reference(&mut self) -> Result<f32, Box<LinuxI2CError>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:301:59
[INFO] [stdout]     |
[INFO] [stdout] 301 |     pub fn get_calibrate_low_reading(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                                           ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 301 -     pub fn get_calibrate_low_reading(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout] 301 +     pub fn get_calibrate_low_reading(&mut self) -> Result<f32, Box<LinuxI2CError>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:312:45
[INFO] [stdout]     |
[INFO] [stdout] 312 |     pub fn get_version(&mut self) -> Result<(u8), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                             ^  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 312 -     pub fn get_version(&mut self) -> Result<(u8), Box<LinuxI2CError>> {
[INFO] [stdout] 312 +     pub fn get_version(&mut self) -> Result<u8, Box<LinuxI2CError>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:325:46
[INFO] [stdout]     |
[INFO] [stdout] 325 |     pub fn get_firmware(&mut self) -> Result<(u8), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                              ^  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 325 -     pub fn get_firmware(&mut self) -> Result<(u8), Box<LinuxI2CError>> {
[INFO] [stdout] 325 +     pub fn get_firmware(&mut self) -> Result<u8, Box<LinuxI2CError>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:374:58
[INFO] [stdout]     |
[INFO] [stdout] 374 |     pub fn read_eeprom(&mut self, address: u8) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                                          ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 374 -     pub fn read_eeprom(&mut self, address: u8) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout] 374 +     pub fn read_eeprom(&mut self, address: u8) -> Result<f32, Box<LinuxI2CError>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:408:53
[INFO] [stdout]     |
[INFO] [stdout] 408 |     pub fn get_probe_potential(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                                     ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 408 -     pub fn get_probe_potential(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout] 408 +     pub fn get_probe_potential(&mut self) -> Result<f32, Box<LinuxI2CError>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:441:62
[INFO] [stdout]     |
[INFO] [stdout] 441 |     pub fn _read_register(&mut self, register: u8) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                                              ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 441 -     pub fn _read_register(&mut self, register: u8) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout] 441 +     pub fn _read_register(&mut self, register: u8) -> Result<f32, Box<LinuxI2CError>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "add0a911d2724c565234903d6c0d02f8593eb73149ddcae67e8cfc3c615617b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "add0a911d2724c565234903d6c0d02f8593eb73149ddcae67e8cfc3c615617b0", kill_on_drop: false }`
[INFO] [stdout] add0a911d2724c565234903d6c0d02f8593eb73149ddcae67e8cfc3c615617b0
