[INFO] cloning repository https://github.com/bernardocrodrigues/rusty_mandelbrot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bernardocrodrigues/rusty_mandelbrot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbernardocrodrigues%2Frusty_mandelbrot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbernardocrodrigues%2Frusty_mandelbrot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8a32f1fe688c3e509fb70667bbd81906d5f24e68
[INFO] checking bernardocrodrigues/rusty_mandelbrot against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbernardocrodrigues%2Frusty_mandelbrot" "/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/bernardocrodrigues/rusty_mandelbrot on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bernardocrodrigues/rusty_mandelbrot
[INFO] finished tweaking git repo https://github.com/bernardocrodrigues/rusty_mandelbrot
[INFO] tweaked toml for git repo https://github.com/bernardocrodrigues/rusty_mandelbrot written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/bernardocrodrigues/rusty_mandelbrot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f3e25a28806295674076276dfed5d6d83bf8477b4560fe1aaf400428a715b75
[INFO] running `Command { std: "docker" "start" "-a" "4f3e25a28806295674076276dfed5d6d83bf8477b4560fe1aaf400428a715b75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f3e25a28806295674076276dfed5d6d83bf8477b4560fe1aaf400428a715b75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f3e25a28806295674076276dfed5d6d83bf8477b4560fe1aaf400428a715b75", kill_on_drop: false }`
[INFO] [stdout] 4f3e25a28806295674076276dfed5d6d83bf8477b4560fe1aaf400428a715b75
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a960eb9ade6e670885b0a8a2379a855828292150721a7339fe70af567f2b65f9
[INFO] running `Command { std: "docker" "start" "-a" "a960eb9ade6e670885b0a8a2379a855828292150721a7339fe70af567f2b65f9", kill_on_drop: false }`
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[INFO] [stderr]    Compiling unicode-xid v0.1.0
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[INFO] [stderr]     Checking rusty_mandelbrot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value captured by `deepness` is never read
[INFO] [stdout]    --> src/main.rs:130:21
[INFO] [stdout]     |
[INFO] [stdout] 130 |                     deepness = width_excursion / world.zoom_factor;
[INFO] [stdout]     |                     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: did you mean to capture by reference instead?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value captured by `deepness` is never read
[INFO] [stdout]    --> src/main.rs:130:21
[INFO] [stdout]     |
[INFO] [stdout] 130 |                     deepness = width_excursion / world.zoom_factor;
[INFO] [stdout]     |                     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: did you mean to capture by reference instead?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `conjugate`
[INFO] [stdout]   --> src/mandelbrot.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn conjugate(&self) -> ComplexNumber {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `draw`
[INFO] [stdout]    --> src/main.rs:209:8
[INFO] [stdout]     |
[INFO] [stdout] 209 |     fn draw(&self, frame: &mut [u8]) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `conjugate`
[INFO] [stdout]   --> src/mandelbrot.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn conjugate(&self) -> ComplexNumber {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `draw`
[INFO] [stdout]    --> src/main.rs:209:8
[INFO] [stdout]     |
[INFO] [stdout] 209 |     fn draw(&self, frame: &mut [u8]) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.32s
[INFO] running `Command { std: "docker" "inspect" "a960eb9ade6e670885b0a8a2379a855828292150721a7339fe70af567f2b65f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a960eb9ade6e670885b0a8a2379a855828292150721a7339fe70af567f2b65f9", kill_on_drop: false }`
[INFO] [stdout] a960eb9ade6e670885b0a8a2379a855828292150721a7339fe70af567f2b65f9