[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] testing wahtak/rust-mandelbrot against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwahtak%2Frust-mandelbrot" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [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-0-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/wahtak/rust-mandelbrot on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/wahtak/rust-mandelbrot 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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded num-bigint v0.2.2 [INFO] [stderr] Downloaded num-complex v0.2.1 [INFO] [stderr] Downloaded syn v0.15.33 [INFO] [stderr] Downloaded proc-macro2 v0.4.28 [INFO] [stderr] Downloaded libc v0.2.53 [INFO] [stderr] Downloaded image v0.21.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8f54696d2f9ba76e5c42eaddae4e93c866fe46dd281d0fe8a532fbe786bc6b6f [INFO] running `Command { std: "docker" "start" "-a" "8f54696d2f9ba76e5c42eaddae4e93c866fe46dd281d0fe8a532fbe786bc6b6f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8f54696d2f9ba76e5c42eaddae4e93c866fe46dd281d0fe8a532fbe786bc6b6f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8f54696d2f9ba76e5c42eaddae4e93c866fe46dd281d0fe8a532fbe786bc6b6f", kill_on_drop: false }` [INFO] [stdout] 8f54696d2f9ba76e5c42eaddae4e93c866fe46dd281d0fe8a532fbe786bc6b6f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 76c52bf8235aa8310bd6907b3661d5f641f355cae6ba2deadf1051d0e34ffa83 [INFO] running `Command { std: "docker" "start" "-a" "76c52bf8235aa8310bd6907b3661d5f641f355cae6ba2deadf1051d0e34ffa83", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.6 [INFO] [stderr] Compiling num-integer v0.1.39 [INFO] [stderr] Compiling arrayvec v0.4.10 [INFO] [stderr] Compiling nodrop v0.1.13 [INFO] [stderr] Compiling libc v0.2.53 [INFO] [stderr] Compiling proc-macro2 v0.4.28 [INFO] [stderr] Compiling cfg-if v0.1.7 [INFO] [stderr] Compiling memoffset v0.2.1 [INFO] [stderr] Compiling scopeguard v0.3.3 [INFO] [stderr] Compiling lazy_static v1.3.0 [INFO] [stderr] Compiling rayon-core v1.4.1 [INFO] [stderr] Compiling syn v0.15.33 [INFO] [stderr] Compiling num-iter v0.1.37 [INFO] [stderr] Compiling num-bigint v0.2.2 [INFO] [stderr] Compiling byteorder v1.3.1 [INFO] [stderr] Compiling rayon v1.0.3 [INFO] [stderr] Compiling crossbeam-utils v0.2.2 [INFO] [stderr] Compiling num-rational v0.2.1 [INFO] [stderr] Compiling num-derive v0.2.5 [INFO] [stderr] Compiling adler32 v1.0.3 [INFO] [stderr] Compiling lzw v0.10.0 [INFO] [stderr] Compiling num-complex v0.2.1 [INFO] [stderr] Compiling either v1.5.2 [INFO] [stderr] Compiling inflate v0.4.5 [INFO] [stderr] Compiling color_quant v1.0.1 [INFO] [stderr] Compiling deflate v0.7.19 [INFO] [stderr] Compiling gif v0.10.1 [INFO] [stderr] Compiling crossbeam-epoch v0.3.1 [INFO] [stderr] Compiling crossbeam-deque v0.2.0 [INFO] [stderr] Compiling num_cpus v1.10.0 [INFO] [stderr] Compiling quote v0.6.12 [INFO] [stderr] Compiling png v0.14.1 [INFO] [stderr] Compiling jpeg-decoder v0.1.15 [INFO] [stderr] Compiling num v0.2.0 [INFO] [stderr] Compiling tiff v0.2.2 [INFO] [stderr] Compiling image v0.21.1 [INFO] [stderr] Compiling 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] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [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 [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 7 | pub fn draw(color_function: &dyn Fn(u32, u32) -> image::Rgb) -> image::RgbImage { [INFO] [stdout] | +++ [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] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [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 [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 21 | pub fn mandelbrot_function(c: Complex64) -> Box Complex64> { [INFO] [stdout] | +++ [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] | ^^^^^^^^^^ [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 [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 26 | function: &dyn Fn(T) -> T, [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `draw` is never used [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)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.51s [INFO] running `Command { std: "docker" "inspect" "76c52bf8235aa8310bd6907b3661d5f641f355cae6ba2deadf1051d0e34ffa83", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "76c52bf8235aa8310bd6907b3661d5f641f355cae6ba2deadf1051d0e34ffa83", kill_on_drop: false }` [INFO] [stdout] 76c52bf8235aa8310bd6907b3661d5f641f355cae6ba2deadf1051d0e34ffa83 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 713fe01c2a6987514928a6682c8abb9782c31d3a79dddd23834ae4dc37a9c9cb [INFO] running `Command { std: "docker" "start" "-a" "713fe01c2a6987514928a6682c8abb9782c31d3a79dddd23834ae4dc37a9c9cb", kill_on_drop: false }` [INFO] [stderr] Compiling 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] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [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 [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 7 | pub fn draw(color_function: &dyn Fn(u32, u32) -> image::Rgb) -> image::RgbImage { [INFO] [stdout] | +++ [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] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [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 [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 21 | pub fn mandelbrot_function(c: Complex64) -> Box Complex64> { [INFO] [stdout] | +++ [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] | ^^^^^^^^^^ [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 [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 26 | function: &dyn Fn(T) -> T, [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.60s [INFO] running `Command { std: "docker" "inspect" "713fe01c2a6987514928a6682c8abb9782c31d3a79dddd23834ae4dc37a9c9cb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "713fe01c2a6987514928a6682c8abb9782c31d3a79dddd23834ae4dc37a9c9cb", kill_on_drop: false }` [INFO] [stdout] 713fe01c2a6987514928a6682c8abb9782c31d3a79dddd23834ae4dc37a9c9cb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] e2bdddd390fd04743a05f7115d90344af270abfc1d0f512b672e4c14706e3bb5 [INFO] running `Command { std: "docker" "start" "-a" "e2bdddd390fd04743a05f7115d90344af270abfc1d0f512b672e4c14706e3bb5", kill_on_drop: false }` [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/draw.rs:7:30 [INFO] [stderr] | [INFO] [stderr] 7 | pub fn draw(color_function: &Fn(u32, u32) -> image::Rgb) -> image::RgbImage { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default [INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stderr] | [INFO] [stderr] 7 | pub fn draw(color_function: &dyn Fn(u32, u32) -> image::Rgb) -> image::RgbImage { [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/mandelbrot.rs:21:49 [INFO] [stderr] | [INFO] [stderr] 21 | pub fn mandelbrot_function(c: Complex64) -> Box Complex64> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stderr] | [INFO] [stderr] 21 | pub fn mandelbrot_function(c: Complex64) -> Box Complex64> { [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/mandelbrot.rs:26:16 [INFO] [stderr] | [INFO] [stderr] 26 | function: &Fn(T) -> T, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stderr] | [INFO] [stderr] 26 | function: &dyn Fn(T) -> T, [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: `rust_mandelbrot` (bin "rust_mandelbrot" test) generated 3 warnings (run `cargo fix --bin "rust_mandelbrot" --tests` to apply 3 suggestions) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_mandelbrot-9e1c2a33aabc178f) [INFO] [stdout] [INFO] [stdout] running 7 tests [INFO] [stdout] test draw::tests::float_range_iterates_over_range ... ok [INFO] [stdout] test mandelbrot::tests::mandelbrot_function_does_not_diverge_for_some_constant ... ok [INFO] [stdout] test mandelbrot::tests::measure_divergence_returns_none_when_number_of_iterations_exceeds_maximum ... ok [INFO] [stdout] test mandelbrot::tests::measure_divergence_returns_number_of_iterations_after_which_value_is_out_of_bound ... ok [INFO] [stdout] test mandelbrot::tests::mandelbrot_function_diverges_for_some_constant ... ok [INFO] [stdout] test draw::tests::draw_creates_rbg_image_from_color_function ... ok [INFO] [stdout] test mandelbrot::tests::mandelbrot_function_evaluates_correctly_for_complex_numbers ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "e2bdddd390fd04743a05f7115d90344af270abfc1d0f512b672e4c14706e3bb5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e2bdddd390fd04743a05f7115d90344af270abfc1d0f512b672e4c14706e3bb5", kill_on_drop: false }` [INFO] [stdout] e2bdddd390fd04743a05f7115d90344af270abfc1d0f512b672e4c14706e3bb5