[INFO] fetching crate bme68x-rust 0.1.3...
[INFO] checking bme68x-rust-0.1.3 against master#80399064afa4a2cd153f30d02c25f7ea0383ed65 for opaque-soundness-fix
[INFO] extracting crate bme68x-rust 0.1.3 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate bme68x-rust 0.1.3 on toolchain 80399064afa4a2cd153f30d02c25f7ea0383ed65
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bme68x-rust 0.1.3
[INFO] finished tweaking crates.io crate bme68x-rust 0.1.3
[INFO] tweaked toml for crates.io crate bme68x-rust 0.1.3 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate bme68x-rust 0.1.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.129
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 67382430f5ec20af6d1d939b2250153f714d39984941b2a420140044e8a7f609
[INFO] running `Command { std: "docker" "start" "-a" "67382430f5ec20af6d1d939b2250153f714d39984941b2a420140044e8a7f609", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "67382430f5ec20af6d1d939b2250153f714d39984941b2a420140044e8a7f609", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67382430f5ec20af6d1d939b2250153f714d39984941b2a420140044e8a7f609", kill_on_drop: false }`
[INFO] [stdout] 67382430f5ec20af6d1d939b2250153f714d39984941b2a420140044e8a7f609
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 205d6f6f09d989df818fe4379475e3b9f077d4f872db856a9278aabe65082c61
[INFO] running `Command { std: "docker" "start" "-a" "205d6f6f09d989df818fe4379475e3b9f077d4f872db856a9278aabe65082c61", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling libc v0.2.129
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking os_str_bytes v6.2.0
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking bme68x-rust v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bme68x.rs:462:32
[INFO] [stdout]     |
[INFO] [stdout] 462 |     pub fn get_conf(&mut self, mut conf: &mut DeviceConfig) -> Result<(), Error> {
[INFO] [stdout]     |                                ----^^^^
[INFO] [stdout]     |                                |
[INFO] [stdout]     |                                help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/internal.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     mut dev: *mut Device<I>,
[INFO] [stdout]   |     ----^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/internal.rs:160:5
[INFO] [stdout]     |
[INFO] [stdout] 160 |     mut data: *mut SensorData,
[INFO] [stdout]     |     ----^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/internal.rs:484:63
[INFO] [stdout]     |
[INFO] [stdout] 484 | pub(crate) unsafe fn set_mem_page<I: Interface>(reg_addr: u8, mut dev: *mut Device<I>) -> i8 {
[INFO] [stdout]     |                                                               ----^^^
[INFO] [stdout]     |                                                               |
[INFO] [stdout]     |                                                               help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/internal.rs:522:49
[INFO] [stdout]     |
[INFO] [stdout] 522 | pub(crate) unsafe fn get_mem_page<I: Interface>(mut dev: *mut Device<I>) -> i8 {
[INFO] [stdout]     |                                                 ----^^^
[INFO] [stdout]     |                                                 |
[INFO] [stdout]     |                                                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/internal.rs:791:44
[INFO] [stdout]     |
[INFO] [stdout] 791 | pub(crate) fn get_calib_data<I: Interface>(mut dev: &mut Device<I>) -> i8 {
[INFO] [stdout]     |                                            ----^^^
[INFO] [stdout]     |                                            |
[INFO] [stdout]     |                                            help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/internal.rs:858:45
[INFO] [stdout]     |
[INFO] [stdout] 858 | pub(crate) fn read_variant_id<I: Interface>(mut dev: &mut Device<I>) -> i8 {
[INFO] [stdout]     |                                             ----^^^
[INFO] [stdout]     |                                             |
[INFO] [stdout]     |                                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling clap_derive v3.2.15
[INFO] [stderr]     Checking clap v3.2.16
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bme68x.rs:462:32
[INFO] [stdout]     |
[INFO] [stdout] 462 |     pub fn get_conf(&mut self, mut conf: &mut DeviceConfig) -> Result<(), Error> {
[INFO] [stdout]     |                                ----^^^^
[INFO] [stdout]     |                                |
[INFO] [stdout]     |                                help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/internal.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     mut dev: *mut Device<I>,
[INFO] [stdout]   |     ----^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/internal.rs:160:5
[INFO] [stdout]     |
[INFO] [stdout] 160 |     mut data: *mut SensorData,
[INFO] [stdout]     |     ----^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/internal.rs:484:63
[INFO] [stdout]     |
[INFO] [stdout] 484 | pub(crate) unsafe fn set_mem_page<I: Interface>(reg_addr: u8, mut dev: *mut Device<I>) -> i8 {
[INFO] [stdout]     |                                                               ----^^^
[INFO] [stdout]     |                                                               |
[INFO] [stdout]     |                                                               help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/internal.rs:522:49
[INFO] [stdout]     |
[INFO] [stdout] 522 | pub(crate) unsafe fn get_mem_page<I: Interface>(mut dev: *mut Device<I>) -> i8 {
[INFO] [stdout]     |                                                 ----^^^
[INFO] [stdout]     |                                                 |
[INFO] [stdout]     |                                                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/internal.rs:791:44
[INFO] [stdout]     |
[INFO] [stdout] 791 | pub(crate) fn get_calib_data<I: Interface>(mut dev: &mut Device<I>) -> i8 {
[INFO] [stdout]     |                                            ----^^^
[INFO] [stdout]     |                                            |
[INFO] [stdout]     |                                            help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/internal.rs:858:45
[INFO] [stdout]     |
[INFO] [stdout] 858 | pub(crate) fn read_variant_id<I: Interface>(mut dev: &mut Device<I>) -> i8 {
[INFO] [stdout]     |                                             ----^^^
[INFO] [stdout]     |                                             |
[INFO] [stdout]     |                                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.92s
[INFO] running `Command { std: "docker" "inspect" "205d6f6f09d989df818fe4379475e3b9f077d4f872db856a9278aabe65082c61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "205d6f6f09d989df818fe4379475e3b9f077d4f872db856a9278aabe65082c61", kill_on_drop: false }`
[INFO] [stdout] 205d6f6f09d989df818fe4379475e3b9f077d4f872db856a9278aabe65082c61
