[INFO] crate i2cdev-lsm303d 0.1.2 is already in cache
[INFO] extracting crate i2cdev-lsm303d 0.1.2 into work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/reg/i2cdev-lsm303d/0.1.2
[INFO] extracting crate i2cdev-lsm303d 0.1.2 into work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/reg/i2cdev-lsm303d/0.1.2
[INFO] validating manifest of i2cdev-lsm303d-0.1.2 on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of i2cdev-lsm303d-0.1.2 on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing i2cdev-lsm303d-0.1.2
[INFO] finished frobbing i2cdev-lsm303d-0.1.2
[INFO] frobbed toml for i2cdev-lsm303d-0.1.2 written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/reg/i2cdev-lsm303d/0.1.2/Cargo.toml
[INFO] started frobbing i2cdev-lsm303d-0.1.2
[INFO] finished frobbing i2cdev-lsm303d-0.1.2
[INFO] frobbed toml for i2cdev-lsm303d-0.1.2 written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/reg/i2cdev-lsm303d/0.1.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking i2cdev-lsm303d-0.1.2 against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-6/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/reg/i2cdev-lsm303d/0.1.2:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 66532a72e5bdef595b90bf69689f097742f34f5c07399f71b90bd5813ab29ee5
[INFO] running `"docker" "start" "-a" "66532a72e5bdef595b90bf69689f097742f34f5c07399f71b90bd5813ab29ee5"`
[INFO] [stderr]     Checking i2csensors v0.1.3
[INFO] [stderr]     Checking i2cdev-lsm303d v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::thread`
[INFO] [stderr]   --> src/lib.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 | use std::thread;
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Duration`
[INFO] [stderr]   --> src/lib.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 | use std::time::Duration;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::error::Error`
[INFO] [stderr]   --> src/lib.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | use std::error::Error;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant `g2` should have an upper camel case name
[INFO] [stderr]   --> src/lib.rs:68:5
[INFO] [stderr]    |
[INFO] [stderr] 68 |     g2 = 0b000,
[INFO] [stderr]    |     ^^ help: convert the identifier to upper camel case: `G2`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_camel_case_types)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `g4` should have an upper camel case name
[INFO] [stderr]   --> src/lib.rs:69:5
[INFO] [stderr]    |
[INFO] [stderr] 69 |     g4 = 0b001,
[INFO] [stderr]    |     ^^ help: convert the identifier to upper camel case: `G4`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `g6` should have an upper camel case name
[INFO] [stderr]   --> src/lib.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 70 |     g6 = 0b010,
[INFO] [stderr]    |     ^^ help: convert the identifier to upper camel case: `G6`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `g8` should have an upper camel case name
[INFO] [stderr]   --> src/lib.rs:71:5
[INFO] [stderr]    |
[INFO] [stderr] 71 |     g8 = 0b011,
[INFO] [stderr]    |     ^^ help: convert the identifier to upper camel case: `G8`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `g16` should have an upper camel case name
[INFO] [stderr]   --> src/lib.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 |     g16 = 0b100
[INFO] [stderr]    |     ^^^ help: convert the identifier to upper camel case: `G16`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `gauss2` should have an upper camel case name
[INFO] [stderr]    --> src/lib.rs:102:5
[INFO] [stderr]     |
[INFO] [stderr] 102 |     gauss2 = 0b00,
[INFO] [stderr]     |     ^^^^^^ help: convert the identifier to upper camel case: `Gauss2`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `gauss4` should have an upper camel case name
[INFO] [stderr]    --> src/lib.rs:103:5
[INFO] [stderr]     |
[INFO] [stderr] 103 |     gauss4 = 0b01,
[INFO] [stderr]     |     ^^^^^^ help: convert the identifier to upper camel case: `Gauss4`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `gauss8` should have an upper camel case name
[INFO] [stderr]    --> src/lib.rs:104:5
[INFO] [stderr]     |
[INFO] [stderr] 104 |     gauss8 = 0b10,
[INFO] [stderr]     |     ^^^^^^ help: convert the identifier to upper camel case: `Gauss8`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `gauss12` should have an upper camel case name
[INFO] [stderr]    --> src/lib.rs:105:5
[INFO] [stderr]     |
[INFO] [stderr] 105 |     gauss12 = 0b11
[INFO] [stderr]     |     ^^^^^^^ help: convert the identifier to upper camel case: `Gauss12`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread`
[INFO] [stderr]   --> src/lib.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 | use std::thread;
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Duration`
[INFO] [stderr]   --> src/lib.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 | use std::time::Duration;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::error::Error`
[INFO] [stderr]   --> src/lib.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | use std::error::Error;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant `g2` should have an upper camel case name
[INFO] [stderr]   --> src/lib.rs:68:5
[INFO] [stderr]    |
[INFO] [stderr] 68 |     g2 = 0b000,
[INFO] [stderr]    |     ^^ help: convert the identifier to upper camel case: `G2`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_camel_case_types)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `g4` should have an upper camel case name
[INFO] [stderr]   --> src/lib.rs:69:5
[INFO] [stderr]    |
[INFO] [stderr] 69 |     g4 = 0b001,
[INFO] [stderr]    |     ^^ help: convert the identifier to upper camel case: `G4`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `g6` should have an upper camel case name
[INFO] [stderr]   --> src/lib.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 70 |     g6 = 0b010,
[INFO] [stderr]    |     ^^ help: convert the identifier to upper camel case: `G6`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `g8` should have an upper camel case name
[INFO] [stderr]   --> src/lib.rs:71:5
[INFO] [stderr]    |
[INFO] [stderr] 71 |     g8 = 0b011,
[INFO] [stderr]    |     ^^ help: convert the identifier to upper camel case: `G8`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `g16` should have an upper camel case name
[INFO] [stderr]   --> src/lib.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 |     g16 = 0b100
[INFO] [stderr]    |     ^^^ help: convert the identifier to upper camel case: `G16`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `gauss2` should have an upper camel case name
[INFO] [stderr]    --> src/lib.rs:102:5
[INFO] [stderr]     |
[INFO] [stderr] 102 |     gauss2 = 0b00,
[INFO] [stderr]     |     ^^^^^^ help: convert the identifier to upper camel case: `Gauss2`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `gauss4` should have an upper camel case name
[INFO] [stderr]    --> src/lib.rs:103:5
[INFO] [stderr]     |
[INFO] [stderr] 103 |     gauss4 = 0b01,
[INFO] [stderr]     |     ^^^^^^ help: convert the identifier to upper camel case: `Gauss4`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `gauss8` should have an upper camel case name
[INFO] [stderr]    --> src/lib.rs:104:5
[INFO] [stderr]     |
[INFO] [stderr] 104 |     gauss8 = 0b10,
[INFO] [stderr]     |     ^^^^^^ help: convert the identifier to upper camel case: `Gauss8`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `gauss12` should have an upper camel case name
[INFO] [stderr]    --> src/lib.rs:105:5
[INFO] [stderr]     |
[INFO] [stderr] 105 |     gauss12 = 0b11
[INFO] [stderr]     |     ^^^^^^^ help: convert the identifier to upper camel case: `Gauss12`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:152:34
[INFO] [stderr]     |
[INFO] [stderr] 152 |     pub fn new(mut accel_mag: T, mut accel_mag_settings: LSM303DSettings) -> Result<LSM303D<T>, T::Error> {
[INFO] [stderr]     |                                  ----^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |                                  |
[INFO] [stderr]     |                                  help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:164:13
[INFO] [stderr]     |
[INFO] [stderr] 164 |         let mut ctrl_reg2: u8 = 0_u8 | ((accel_mag_settings.accelerometer_sensitivity as u8) << 3) | ((accel_mag_settings.accelerometer_anti_alias_filter_bandwidth as u8) << 6);
[INFO] [stderr]     |             ----^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:167:13
[INFO] [stderr]     |
[INFO] [stderr] 167 |         let mut ctrl_reg5: u8 = 0_u8 | ((accel_mag_settings.magnetometer_resolution as u8) << 5) | ((accel_mag_settings.magnetometer_data_rate as u8) << 2); //24
[INFO] [stderr]     |             ----^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:170:13
[INFO] [stderr]     |
[INFO] [stderr] 170 |         let mut ctrl_reg6: u8 = 0_u8 | ((accel_mag_settings.magnetometer_sensitivity as u8) << 5);
[INFO] [stderr]     |             ----^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:179:13
[INFO] [stderr]     |
[INFO] [stderr] 179 |         let mut a_gain: f32;
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:180:13
[INFO] [stderr]     |
[INFO] [stderr] 180 |         let mut m_gain: f32;
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:152:34
[INFO] [stderr]     |
[INFO] [stderr] 152 |     pub fn new(mut accel_mag: T, mut accel_mag_settings: LSM303DSettings) -> Result<LSM303D<T>, T::Error> {
[INFO] [stderr]     |                                  ----^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |                                  |
[INFO] [stderr]     |                                  help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:164:13
[INFO] [stderr]     |
[INFO] [stderr] 164 |         let mut ctrl_reg2: u8 = 0_u8 | ((accel_mag_settings.accelerometer_sensitivity as u8) << 3) | ((accel_mag_settings.accelerometer_anti_alias_filter_bandwidth as u8) << 6);
[INFO] [stderr]     |             ----^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:167:13
[INFO] [stderr]     |
[INFO] [stderr] 167 |         let mut ctrl_reg5: u8 = 0_u8 | ((accel_mag_settings.magnetometer_resolution as u8) << 5) | ((accel_mag_settings.magnetometer_data_rate as u8) << 2); //24
[INFO] [stderr]     |             ----^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:170:13
[INFO] [stderr]     |
[INFO] [stderr] 170 |         let mut ctrl_reg6: u8 = 0_u8 | ((accel_mag_settings.magnetometer_sensitivity as u8) << 5);
[INFO] [stderr]     |             ----^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:179:13
[INFO] [stderr]     |
[INFO] [stderr] 179 |         let mut a_gain: f32;
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:180:13
[INFO] [stderr]     |
[INFO] [stderr] 180 |         let mut m_gain: f32;
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |     let mut i2cdev = get_linux_lsm303d_i2c_device().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] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |     let mut i2cdev = get_linux_lsm303d_i2c_device().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 1.67s
[INFO] running `"docker" "inspect" "66532a72e5bdef595b90bf69689f097742f34f5c07399f71b90bd5813ab29ee5"`
[INFO] running `"docker" "rm" "-f" "66532a72e5bdef595b90bf69689f097742f34f5c07399f71b90bd5813ab29ee5"`
[INFO] [stdout] 66532a72e5bdef595b90bf69689f097742f34f5c07399f71b90bd5813ab29ee5