[INFO] cloning repository https://github.com/harryjjacobs/neckcheck
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/harryjjacobs/neckcheck" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharryjjacobs%2Fneckcheck", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharryjjacobs%2Fneckcheck'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f8b5ba3aeaf1445d260b02145c9151b4642fcd41
[INFO] building harryjjacobs/neckcheck against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharryjjacobs%2Fneckcheck" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/harryjjacobs/neckcheck
[INFO] finished tweaking git repo https://github.com/harryjjacobs/neckcheck
[INFO] tweaked toml for git repo https://github.com/harryjjacobs/neckcheck written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/harryjjacobs/neckcheck on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/harryjjacobs/neckcheck 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e46ae164e2f7acbd749e7394bb1c98d4dfa758a0a5ad55c164dbb09b02c42551
[INFO] running `Command { std: "docker" "start" "-a" "e46ae164e2f7acbd749e7394bb1c98d4dfa758a0a5ad55c164dbb09b02c42551", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e46ae164e2f7acbd749e7394bb1c98d4dfa758a0a5ad55c164dbb09b02c42551", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e46ae164e2f7acbd749e7394bb1c98d4dfa758a0a5ad55c164dbb09b02c42551", kill_on_drop: false }`
[INFO] [stdout] e46ae164e2f7acbd749e7394bb1c98d4dfa758a0a5ad55c164dbb09b02c42551
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9b30e2202af63966ea6dc3b218d023ec62c8e357c0cf6bca248d5de37b4d048
[INFO] running `Command { std: "docker" "start" "-a" "e9b30e2202af63966ea6dc3b218d023ec62c8e357c0cf6bca248d5de37b4d048", kill_on_drop: false }`
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[INFO] [stderr]    Compiling nokhwa v0.10.5
[INFO] [stderr]    Compiling imageproc v0.23.0
[INFO] [stderr]    Compiling neckcheck v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `Discrete` is never constructed
[INFO] [stdout]   --> src/main.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | enum WebCamMode {
[INFO] [stdout]    |      ---------- variant in this enum
[INFO] [stdout] 38 |     Continuous,
[INFO] [stdout] 39 |     Discrete,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `draw` is never used
[INFO] [stdout]    --> src/main.rs:135:12
[INFO] [stdout]     |
[INFO] [stdout] 110 | impl FaceDetector {
[INFO] [stdout]     | ----------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 135 |     pub fn draw(image: &mut RgbImage, faces: Vec<Rect>) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 10s
[INFO] running `Command { std: "docker" "inspect" "e9b30e2202af63966ea6dc3b218d023ec62c8e357c0cf6bca248d5de37b4d048", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9b30e2202af63966ea6dc3b218d023ec62c8e357c0cf6bca248d5de37b4d048", kill_on_drop: false }`
[INFO] [stdout] e9b30e2202af63966ea6dc3b218d023ec62c8e357c0cf6bca248d5de37b4d048
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 29b88d6431b4f117a7e5bba578d8afaa9f302f7c6fe2fa4442478d4e557bee83
[INFO] running `Command { std: "docker" "start" "-a" "29b88d6431b4f117a7e5bba578d8afaa9f302f7c6fe2fa4442478d4e557bee83", kill_on_drop: false }`
[INFO] [stderr]    Compiling neckcheck v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `Discrete` is never constructed
[INFO] [stdout]   --> src/main.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | enum WebCamMode {
[INFO] [stdout]    |      ---------- variant in this enum
[INFO] [stdout] 38 |     Continuous,
[INFO] [stdout] 39 |     Discrete,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `draw` is never used
[INFO] [stdout]    --> src/main.rs:135:12
[INFO] [stdout]     |
[INFO] [stdout] 110 | impl FaceDetector {
[INFO] [stdout]     | ----------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 135 |     pub fn draw(image: &mut RgbImage, faces: Vec<Rect>) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "29b88d6431b4f117a7e5bba578d8afaa9f302f7c6fe2fa4442478d4e557bee83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29b88d6431b4f117a7e5bba578d8afaa9f302f7c6fe2fa4442478d4e557bee83", kill_on_drop: false }`
[INFO] [stdout] 29b88d6431b4f117a7e5bba578d8afaa9f302f7c6fe2fa4442478d4e557bee83