[INFO] cloning repository https://github.com/jackmead515/rust_dht11
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jackmead515/rust_dht11" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjackmead515%2Frust_dht11", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjackmead515%2Frust_dht11'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4c900bdb3c3588690034f3a8938b9b735ce4173a
[INFO] checking jackmead515/rust_dht11 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjackmead515%2Frust_dht11" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jackmead515/rust_dht11 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jackmead515/rust_dht11
[INFO] finished tweaking git repo https://github.com/jackmead515/rust_dht11
[INFO] tweaked toml for git repo https://github.com/jackmead515/rust_dht11 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/jackmead515/rust_dht11 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c23d292502d254c150cdad3838aa0ca68aa0fc389c12a70f44439c872bf3970e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c23d292502d254c150cdad3838aa0ca68aa0fc389c12a70f44439c872bf3970e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c23d292502d254c150cdad3838aa0ca68aa0fc389c12a70f44439c872bf3970e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c23d292502d254c150cdad3838aa0ca68aa0fc389c12a70f44439c872bf3970e", kill_on_drop: false }`
[INFO] [stdout] c23d292502d254c150cdad3838aa0ca68aa0fc389c12a70f44439c872bf3970e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8eadd5694752e249a133afb91aba44180c00d80758acc6829dbd86f51cc805c6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8eadd5694752e249a133afb91aba44180c00d80758acc6829dbd86f51cc805c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking rppal v0.11.3
[INFO] [stderr]     Checking rust_dht11 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:18:11
[INFO] [stdout]    |
[INFO] [stdout] 18 |       Err(e) => println!("Failed Read!")
[INFO] [stdout]    |           ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/gpio.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let mut pin = match controller.get(pin_num) {
[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: associated function is never used: `read_retry`
[INFO] [stdout]   --> src/dht11.rs:40:10
[INFO] [stdout]    |
[INFO] [stdout] 40 |   pub fn read_retry(&mut self, retry: usize) -> Result<(f32, f32), SensorError> {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pin_num`
[INFO] [stdout]  --> src/gpio.rs:9:3
[INFO] [stdout]   |
[INFO] [stdout] 9 |   pin_num: u8,
[INFO] [stdout]   |   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:18:11
[INFO] [stdout]    |
[INFO] [stdout] 18 |       Err(e) => println!("Failed Read!")
[INFO] [stdout]    |           ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/gpio.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let mut pin = match controller.get(pin_num) {
[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: associated function is never used: `read_retry`
[INFO] [stdout]   --> src/dht11.rs:40:10
[INFO] [stdout]    |
[INFO] [stdout] 40 |   pub fn read_retry(&mut self, retry: usize) -> Result<(f32, f32), SensorError> {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pin_num`
[INFO] [stdout]  --> src/gpio.rs:9:3
[INFO] [stdout]   |
[INFO] [stdout] 9 |   pin_num: u8,
[INFO] [stdout]   |   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.17s
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8eadd5694752e249a133afb91aba44180c00d80758acc6829dbd86f51cc805c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8eadd5694752e249a133afb91aba44180c00d80758acc6829dbd86f51cc805c6", kill_on_drop: false }`
[INFO] [stdout] 8eadd5694752e249a133afb91aba44180c00d80758acc6829dbd86f51cc805c6