[INFO] fetching crate rust_rpi_4wd_car 0.0.12...
[INFO] checking rust_rpi_4wd_car-0.0.12 against master#0a8629bff642c3c3b84bb644c0099194f063b627 for pr-86231
[INFO] extracting crate rust_rpi_4wd_car 0.0.12 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate rust_rpi_4wd_car 0.0.12 on toolchain 0a8629bff642c3c3b84bb644c0099194f063b627
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust_rpi_4wd_car 0.0.12
[INFO] finished tweaking crates.io crate rust_rpi_4wd_car 0.0.12
[INFO] tweaked toml for crates.io crate rust_rpi_4wd_car 0.0.12 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate rust_rpi_4wd_car 0.0.12 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4269ccd60d06472e048440ce3cab21d51e25c939fc0ce000997fb108262902eb
[INFO] running `Command { std: "docker" "start" "-a" "4269ccd60d06472e048440ce3cab21d51e25c939fc0ce000997fb108262902eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4269ccd60d06472e048440ce3cab21d51e25c939fc0ce000997fb108262902eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4269ccd60d06472e048440ce3cab21d51e25c939fc0ce000997fb108262902eb", kill_on_drop: false }`
[INFO] [stdout] 4269ccd60d06472e048440ce3cab21d51e25c939fc0ce000997fb108262902eb
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 85edefb579df35bba1b04ae40e40450fc0ff61580b5f13f1772f9ebbb09ef716
[INFO] running `Command { std: "docker" "start" "-a" "85edefb579df35bba1b04ae40e40450fc0ff61580b5f13f1772f9ebbb09ef716", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling tokio v1.5.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking embedded-hal v0.2.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking rppal v0.12.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]     Checking ctrlc v3.1.9
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking rust_rpi_4wd_car v0.0.12 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/sensors.rs:387:12
[INFO] [stdout]     |
[INFO] [stdout] 387 |     pub fn new() -> Rr4cResult<Self> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/sensors.rs:387:12
[INFO] [stdout]     |
[INFO] [stdout] 387 |     pub fn new() -> Rr4cResult<Self> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.90s
[INFO] running `Command { std: "docker" "inspect" "85edefb579df35bba1b04ae40e40450fc0ff61580b5f13f1772f9ebbb09ef716", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85edefb579df35bba1b04ae40e40450fc0ff61580b5f13f1772f9ebbb09ef716", kill_on_drop: false }`
[INFO] [stdout] 85edefb579df35bba1b04ae40e40450fc0ff61580b5f13f1772f9ebbb09ef716