[INFO] cloning repository https://github.com/JPDye/mandelbrot-viewer [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JPDye/mandelbrot-viewer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJPDye%2Fmandelbrot-viewer", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJPDye%2Fmandelbrot-viewer'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 708ce631e1f35f850cdb0c9975f19cb949601d47 [INFO] checking JPDye/mandelbrot-viewer against try#b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f for pr-76104 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJPDye%2Fmandelbrot-viewer" "/workspace/builds/worker-8/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/JPDye/mandelbrot-viewer on toolchain b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/JPDye/mandelbrot-viewer [INFO] finished tweaking git repo https://github.com/JPDye/mandelbrot-viewer [INFO] tweaked toml for git repo https://github.com/JPDye/mandelbrot-viewer written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/JPDye/mandelbrot-viewer already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded deque v0.3.2 [INFO] [stderr] Downloaded rayon v0.4.3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ff565d99f73cce430913b347067e35d7c0db92d2e8333cc933036864e4dec154 [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" "ff565d99f73cce430913b347067e35d7c0db92d2e8333cc933036864e4dec154", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ff565d99f73cce430913b347067e35d7c0db92d2e8333cc933036864e4dec154", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ff565d99f73cce430913b347067e35d7c0db92d2e8333cc933036864e4dec154", kill_on_drop: false }` [INFO] [stdout] ff565d99f73cce430913b347067e35d7c0db92d2e8333cc933036864e4dec154 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ce9ff4ab1a5f204526c587d1de0a0b529bb328cf5f14c3fd0c4eef39237c6ed7 [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" "ce9ff4ab1a5f204526c587d1de0a0b529bb328cf5f14c3fd0c4eef39237c6ed7", kill_on_drop: false }` [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling ppv-lite86 v0.2.9 [INFO] [stderr] Compiling siphasher v0.3.3 [INFO] [stderr] Compiling rayon-core v1.8.0 [INFO] [stderr] Compiling proc-macro2 v1.0.20 [INFO] [stderr] Compiling syn v1.0.39 [INFO] [stderr] Checking inflate v0.2.0 [INFO] [stderr] Checking deque v0.3.2 [INFO] [stderr] Checking crossbeam v0.2.12 [INFO] [stderr] Compiling num-iter v0.1.41 [INFO] [stderr] Compiling rayon v1.4.0 [INFO] [stderr] Compiling num-bigint v0.3.0 [INFO] [stderr] Compiling num-rational v0.3.0 [INFO] [stderr] Checking gif v0.9.2 [INFO] [stderr] Compiling libc v0.2.76 [INFO] [stderr] Compiling phf_shared v0.8.0 [INFO] [stderr] Checking deflate v0.7.20 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking num-traits v0.1.43 [INFO] [stderr] Checking approx v0.3.2 [INFO] [stderr] Checking num-complex v0.3.0 [INFO] [stderr] Checking crossbeam-channel v0.4.3 [INFO] [stderr] Checking num-rational v0.1.42 [INFO] [stderr] Checking enum_primitive v0.1.1 [INFO] [stderr] Checking phf v0.8.0 [INFO] [stderr] Checking rand v0.3.23 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Checking rayon v0.4.3 [INFO] [stderr] Compiling rand_pcg v0.2.1 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Checking png v0.7.0 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Checking num v0.3.0 [INFO] [stderr] Compiling phf_generator v0.8.0 [INFO] [stderr] Compiling phf_codegen v0.8.0 [INFO] [stderr] Compiling palette v0.5.0 [INFO] [stderr] Checking jpeg-decoder v0.1.20 [INFO] [stderr] Checking image v0.13.0 [INFO] [stderr] Compiling palette_derive v0.5.0 [INFO] [stderr] Checking mandelbrot v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `num_cols` [INFO] [stdout] --> src/main.rs:34:51 [INFO] [stdout] | [INFO] [stdout] 34 | fn potential_colouring(c: Complex, lim: u32, num_cols: u32, grad: &Gradient) -> Rgb> { [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_cols` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `num_cols` [INFO] [stdout] --> src/main.rs:34:51 [INFO] [stdout] | [INFO] [stdout] 34 | fn potential_colouring(c: Complex, lim: u32, num_cols: u32, grad: &Gradient) -> Rgb> { [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_cols` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 46.62s [INFO] running `Command { std: "docker" "inspect" "ce9ff4ab1a5f204526c587d1de0a0b529bb328cf5f14c3fd0c4eef39237c6ed7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ce9ff4ab1a5f204526c587d1de0a0b529bb328cf5f14c3fd0c4eef39237c6ed7", kill_on_drop: false }` [INFO] [stdout] ce9ff4ab1a5f204526c587d1de0a0b529bb328cf5f14c3fd0c4eef39237c6ed7