[INFO] crate mpu9250-i2c 0.6.6 is already in cache
[INFO] checking mpu9250-i2c-0.6.6 against master#30ca215b4e38b32aa7abdd635c5e2d56f5724494 for pr-66037
[INFO] extracting crate mpu9250-i2c 0.6.6 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate mpu9250-i2c 0.6.6 on toolchain 30ca215b4e38b32aa7abdd635c5e2d56f5724494
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate mpu9250-i2c 0.6.6
[INFO] finished tweaking crates.io crate mpu9250-i2c 0.6.6
[INFO] tweaked toml for crates.io crate mpu9250-i2c 0.6.6 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] bbe1438efd39e6c8fe574c30d9ed6ab95ef89ab12e6506ba22dc95e3de92a15e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "bbe1438efd39e6c8fe574c30d9ed6ab95ef89ab12e6506ba22dc95e3de92a15e"`
[INFO] [stderr]     Checking m v0.1.1
[INFO] [stderr]     Checking mpu9250-i2c v0.6.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking generic-array v0.11.1
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:273:57
[INFO] [stderr]     |
[INFO] [stderr] 273 |   pub fn get_full_scale_gyro_range(&mut self) -> Result<(u8), E> {
[INFO] [stderr]     |                                                         ^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:310:58
[INFO] [stderr]     |
[INFO] [stderr] 310 |   pub fn get_full_scale_accel_range(&mut self) -> Result<(u8), E> {
[INFO] [stderr]     |                                                          ^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:538:51
[INFO] [stderr]     |
[INFO] [stderr] 538 |   pub fn enable_magnetometer(&mut self) -> Result<(bool), E> {
[INFO] [stderr]     |                                                   ^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:561:52
[INFO] [stderr]     |
[INFO] [stderr] 561 |   pub fn ak8963_get_device_id(&mut self) -> Result<(u8), E> {
[INFO] [stderr]     |                                                    ^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:638:47
[INFO] [stderr]     |
[INFO] [stderr] 638 |   pub fn ak8963_get_cntl(&mut self) -> Result<(mag::Ctnl1), E> {
[INFO] [stderr]     |                                               ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr]     Checking mat v0.2.0
[INFO] [stderr]     Checking madgwick v0.1.1
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:273:57
[INFO] [stderr]     |
[INFO] [stderr] 273 |   pub fn get_full_scale_gyro_range(&mut self) -> Result<(u8), E> {
[INFO] [stderr]     |                                                         ^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:310:58
[INFO] [stderr]     |
[INFO] [stderr] 310 |   pub fn get_full_scale_accel_range(&mut self) -> Result<(u8), E> {
[INFO] [stderr]     |                                                          ^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:538:51
[INFO] [stderr]     |
[INFO] [stderr] 538 |   pub fn enable_magnetometer(&mut self) -> Result<(bool), E> {
[INFO] [stderr]     |                                                   ^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:561:52
[INFO] [stderr]     |
[INFO] [stderr] 561 |   pub fn ak8963_get_device_id(&mut self) -> Result<(u8), E> {
[INFO] [stderr]     |                                                    ^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:638:47
[INFO] [stderr]     |
[INFO] [stderr] 638 |   pub fn ak8963_get_cntl(&mut self) -> Result<(mag::Ctnl1), E> {
[INFO] [stderr]     |                                               ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> examples/calibrate.rs:307:9
[INFO] [stderr]     |
[INFO] [stderr] 307 |     let mut vm = mpu9250.get_mag().unwrap();
[INFO] [stderr]     |         ----^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.06s
[INFO] running `"docker" "inspect" "bbe1438efd39e6c8fe574c30d9ed6ab95ef89ab12e6506ba22dc95e3de92a15e"`
[INFO] running `"docker" "rm" "-f" "bbe1438efd39e6c8fe574c30d9ed6ab95ef89ab12e6506ba22dc95e3de92a15e"`
[INFO] [stdout] bbe1438efd39e6c8fe574c30d9ed6ab95ef89ab12e6506ba22dc95e3de92a15e