[INFO] cloning repository https://github.com/wahtak/rust-mandelbrot [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wahtak/rust-mandelbrot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwahtak%2Frust-mandelbrot", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwahtak%2Frust-mandelbrot'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 24b3733a697b095f90e8de6f920251efc7e2fe6e [INFO] checking wahtak/rust-mandelbrot against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwahtak%2Frust-mandelbrot" "/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/wahtak/rust-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/wahtak/rust-mandelbrot [INFO] finished tweaking git repo https://github.com/wahtak/rust-mandelbrot [INFO] tweaked toml for git repo https://github.com/wahtak/rust-mandelbrot written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/wahtak/rust-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 }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded libc v0.2.53 [INFO] [stderr] Downloaded image v0.21.1 [INFO] [stderr] Downloaded syn v0.15.33 [INFO] [stderr] Downloaded proc-macro2 v0.4.28 [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" "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] 035d4c738a9bf413df9e0ad69f3d900ce2e14ac9b4f7fbb3c921303cc548df02 [INFO] running `Command { std: "docker" "start" "-a" "035d4c738a9bf413df9e0ad69f3d900ce2e14ac9b4f7fbb3c921303cc548df02", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "035d4c738a9bf413df9e0ad69f3d900ce2e14ac9b4f7fbb3c921303cc548df02", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "035d4c738a9bf413df9e0ad69f3d900ce2e14ac9b4f7fbb3c921303cc548df02", kill_on_drop: false }` [INFO] [stdout] 035d4c738a9bf413df9e0ad69f3d900ce2e14ac9b4f7fbb3c921303cc548df02 [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" "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] 5aee8bb185ef2baf5af953219755bf28bbbeef5ce6425da5f8ecdcbf82959265 [INFO] running `Command { std: "docker" "start" "-a" "5aee8bb185ef2baf5af953219755bf28bbbeef5ce6425da5f8ecdcbf82959265", kill_on_drop: false }` [INFO] [stderr] Compiling arrayvec v0.4.10 [INFO] [stderr] Compiling num-integer v0.1.39 [INFO] [stderr] Compiling byteorder v1.3.1 [INFO] [stderr] Compiling proc-macro2 v0.4.28 [INFO] [stderr] Compiling libc v0.2.53 [INFO] [stderr] Checking nodrop v0.1.13 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Checking lazy_static v1.3.0 [INFO] [stderr] Compiling rayon-core v1.4.1 [INFO] [stderr] Checking memoffset v0.2.1 [INFO] [stderr] Checking scopeguard v0.3.3 [INFO] [stderr] Compiling syn v0.15.33 [INFO] [stderr] Compiling rayon v1.0.3 [INFO] [stderr] Compiling num-rational v0.2.1 [INFO] [stderr] Checking either v1.5.2 [INFO] [stderr] Checking bitflags v1.0.4 [INFO] [stderr] Checking crossbeam-utils v0.2.2 [INFO] [stderr] Checking inflate v0.4.5 [INFO] [stderr] Checking gif v0.10.1 [INFO] [stderr] Checking num-complex v0.2.1 [INFO] [stderr] Checking num-iter v0.1.37 [INFO] [stderr] Checking num-bigint v0.2.2 [INFO] [stderr] Checking deflate v0.7.19 [INFO] [stderr] Checking crossbeam-epoch v0.3.1 [INFO] [stderr] Checking num_cpus v1.10.0 [INFO] [stderr] Checking crossbeam-deque v0.2.0 [INFO] [stderr] Compiling quote v0.6.12 [INFO] [stderr] Checking png v0.14.1 [INFO] [stderr] Checking num v0.2.0 [INFO] [stderr] Checking jpeg-decoder v0.1.15 [INFO] [stderr] Compiling num-derive v0.2.5 [INFO] [stderr] Checking tiff v0.2.2 [INFO] [stderr] Checking image v0.21.1 [INFO] [stderr] Checking rust_mandelbrot v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/draw.rs:7:30 [INFO] [stdout] | [INFO] [stdout] 7 | pub fn draw(color_function: &Fn(u32, u32) -> image::Rgb) -> image::RgbImage { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(u32, u32) -> image::Rgb` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/mandelbrot.rs:21:49 [INFO] [stdout] | [INFO] [stdout] 21 | pub fn mandelbrot_function(c: Complex64) -> Box Complex64> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Complex64) -> Complex64` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/mandelbrot.rs:26:16 [INFO] [stdout] | [INFO] [stdout] 26 | function: &Fn(T) -> T, [INFO] [stdout] | ^^^^^^^^^^ help: use `dyn`: `dyn Fn(T) -> T` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `draw` [INFO] [stdout] --> src/draw.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | pub fn draw(color_function: &Fn(u32, u32) -> image::Rgb) -> image::RgbImage { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/draw.rs:7:30 [INFO] [stdout] | [INFO] [stdout] 7 | pub fn draw(color_function: &Fn(u32, u32) -> image::Rgb) -> image::RgbImage { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(u32, u32) -> image::Rgb` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/mandelbrot.rs:21:49 [INFO] [stdout] | [INFO] [stdout] 21 | pub fn mandelbrot_function(c: Complex64) -> Box Complex64> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Complex64) -> Complex64` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/mandelbrot.rs:26:16 [INFO] [stdout] | [INFO] [stdout] 26 | function: &Fn(T) -> T, [INFO] [stdout] | ^^^^^^^^^^ help: use `dyn`: `dyn Fn(T) -> T` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 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 13.42s [INFO] running `Command { std: "docker" "inspect" "5aee8bb185ef2baf5af953219755bf28bbbeef5ce6425da5f8ecdcbf82959265", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5aee8bb185ef2baf5af953219755bf28bbbeef5ce6425da5f8ecdcbf82959265", kill_on_drop: false }` [INFO] [stdout] 5aee8bb185ef2baf5af953219755bf28bbbeef5ce6425da5f8ecdcbf82959265