[INFO] cloning repository https://github.com/ytg32/rust_exam
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ytg32/rust_exam" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fytg32%2Frust_exam", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fytg32%2Frust_exam'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 63a9e3341ded881cfe346b0aff9310da0593a862
[INFO] checking ytg32/rust_exam against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fytg32%2Frust_exam" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ytg32/rust_exam
[INFO] finished tweaking git repo https://github.com/ytg32/rust_exam
[INFO] tweaked toml for git repo https://github.com/ytg32/rust_exam written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ytg32/rust_exam on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ytg32/rust_exam 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded renderdoc-sys v0.7.1
[INFO] [stderr]   Downloaded text_io v0.1.12
[INFO] [stderr]   Downloaded inplace_it v0.3.5
[INFO] [stderr]   Downloaded gpu-alloc-types v0.2.0
[INFO] [stderr]   Downloaded show-image v0.13.1
[INFO] [stderr]   Downloaded core-text v20.1.0
[INFO] [stderr]   Downloaded csscolorparser v0.6.2
[INFO] [stderr]   Downloaded colorgrad v0.6.2
[INFO] [stderr]   Downloaded system-deps v6.2.1
[INFO] [stderr]   Downloaded image-webp v0.1.0
[INFO] [stderr]   Downloaded toml v0.8.11
[INFO] [stderr]   Downloaded d3d12 v0.5.0
[INFO] [stderr]   Downloaded toml_edit v0.22.7
[INFO] [stderr]   Downloaded gpu-alloc v0.5.4
[INFO] [stderr]   Downloaded wgpu v0.13.1
[INFO] [stderr]   Downloaded spirv v0.2.0+1.5.4
[INFO] [stderr]   Downloaded wgpu-types v0.13.2
[INFO] [stderr]   Downloaded wgpu-core v0.13.2
[INFO] [stderr]   Downloaded show-image-macros v0.12.3
[INFO] [stderr]   Downloaded wgpu-hal v0.13.2
[INFO] [stderr]   Downloaded khronos-egl v4.1.0
[INFO] [stderr]   Downloaded glam v0.21.3
[INFO] [stderr]   Downloaded crossfont v0.5.2
[INFO] [stderr]   Downloaded naga v0.9.0
[INFO] [stderr]   Downloaded metal v0.24.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ecb63cfdfa72c0106b18ed87689afbfd30d3bdb2f48a538e249795dcd2c19448
[INFO] running `Command { std: "docker" "start" "-a" "ecb63cfdfa72c0106b18ed87689afbfd30d3bdb2f48a538e249795dcd2c19448", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ecb63cfdfa72c0106b18ed87689afbfd30d3bdb2f48a538e249795dcd2c19448", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecb63cfdfa72c0106b18ed87689afbfd30d3bdb2f48a538e249795dcd2c19448", kill_on_drop: false }`
[INFO] [stdout] ecb63cfdfa72c0106b18ed87689afbfd30d3bdb2f48a538e249795dcd2c19448
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dbbbe8cd1931fbdd0de23d005fd970750de6fbb71b08480a20ca87d92b2178bb
[INFO] running `Command { std: "docker" "start" "-a" "dbbbe8cd1931fbdd0de23d005fd970750de6fbb71b08480a20ca87d92b2178bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling cc v1.0.90
[INFO] [stderr]    Compiling thiserror v1.0.58
[INFO] [stderr]    Compiling xml-rs v0.8.19
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling wayland-sys v0.29.5
[INFO] [stderr]     Checking zerocopy v0.7.32
[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]     Checking allocator-api2 v0.2.16
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]    Compiling slotmap v1.0.7
[INFO] [stderr]    Compiling servo-fontconfig-sys v5.1.0
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]     Checking libloading v0.7.4
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling siphasher v0.3.11
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]     Checking fixedbitset v0.4.2
[INFO] [stderr]    Compiling anyhow v1.0.81
[INFO] [stderr]    Compiling cmake v0.1.50
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]    Compiling khronos-egl v4.1.0
[INFO] [stderr]    Compiling ash v0.37.3+1.3.251
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]     Checking codespan-reporting v0.11.1
[INFO] [stderr]    Compiling phf_shared v0.11.2
[INFO] [stderr]     Checking gpu-descriptor-types v0.1.2
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]    Compiling wayland-scanner v0.29.5
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]     Checking gpu-alloc-types v0.2.0
[INFO] [stderr]    Compiling crossfont v0.5.2
[INFO] [stderr]    Compiling smithay-client-toolkit v0.16.1
[INFO] [stderr]     Checking arrayref v0.3.7
[INFO] [stderr]     Checking hexf-parse v0.2.1
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking xcursor v0.3.5
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking foreign-types-shared v0.3.1
[INFO] [stderr]    Compiling built v0.7.1
[INFO] [stderr]     Checking unicode-xid v0.2.4
[INFO] [stderr]    Compiling cfg_aliases v0.1.1
[INFO] [stderr]     Checking tiny-skia-path v0.7.0
[INFO] [stderr]     Checking gpu-alloc v0.5.4
[INFO] [stderr]     Checking indexmap v2.2.5
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]    Compiling wgpu-core v0.13.2
[INFO] [stderr]     Checking gpu-descriptor v0.2.4
[INFO] [stderr]    Compiling phf_generator v0.11.2
[INFO] [stderr]    Compiling freetype-sys v0.13.1
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]     Checking nix v0.24.3
[INFO] [stderr]     Checking parking_lot_core v0.9.9
[INFO] [stderr]     Checking nix v0.25.1
[INFO] [stderr]    Compiling rav1e v0.7.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking memmap2 v0.5.10
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking safe_arch v0.5.2
[INFO] [stderr]     Checking wgpu-types v0.13.2
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking renderdoc-sys v0.7.1
[INFO] [stderr]     Checking rayon-core v1.12.1
[INFO] [stderr]     Checking petgraph v0.6.4
[INFO] [stderr]     Checking glow v0.11.2
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking freetype-rs v0.26.0
[INFO] [stderr]     Checking inplace_it v0.3.5
[INFO] [stderr]     Checking servo-fontconfig v0.5.1
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking spirv v0.2.0+1.5.4
[INFO] [stderr]     Checking v_frame v0.3.8
[INFO] [stderr]     Checking tiny-skia v0.7.0
[INFO] [stderr]     Checking itertools v0.12.1
[INFO] [stderr]    Compiling simd_helpers v0.1.0
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking rayon v1.9.0
[INFO] [stderr]    Compiling wayland-client v0.29.5
[INFO] [stderr]    Compiling wayland-protocols v0.29.5
[INFO] [stderr]     Checking bitstream-io v2.2.0
[INFO] [stderr]     Checking copyless v0.1.5
[INFO] [stderr]     Checking flume v0.11.0
[INFO] [stderr]    Compiling show-image v0.13.1
[INFO] [stderr]     Checking x11-dl v2.21.0
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking avif-serialize v0.8.1
[INFO] [stderr]     Checking wayland-commons v0.29.5
[INFO] [stderr]     Checking rgb v0.8.37
[INFO] [stderr]     Checking half v2.4.0
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking raw-window-handle v0.5.2
[INFO] [stderr]     Checking zune-jpeg v0.4.11
[INFO] [stderr]     Checking tiff v0.9.1
[INFO] [stderr]     Checking exr v1.72.0
[INFO] [stderr]    Compiling show-image-macros v0.12.3
[INFO] [stderr]     Checking image v0.24.9
[INFO] [stderr]     Checking qoi v0.4.1
[INFO] [stderr]     Checking glam v0.21.3
[INFO] [stderr]     Checking av1-grain v0.2.3
[INFO] [stderr]     Checking text_io v0.1.12
[INFO] [stderr]     Checking wayland-cursor v0.29.5
[INFO] [stderr]     Checking maybe-rayon v0.1.1
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]    Compiling profiling-procmacros v1.0.15
[INFO] [stderr]    Compiling foreign-types-macros v0.2.3
[INFO] [stderr]    Compiling num-derive v0.4.2
[INFO] [stderr]    Compiling arg_enum_proc_macro v0.3.4
[INFO] [stderr]    Compiling phf_macros v0.11.2
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking profiling v1.0.15
[INFO] [stderr]     Checking naga v0.9.0
[INFO] [stderr]     Checking calloop v0.10.6
[INFO] [stderr]     Checking image-webp v0.1.0
[INFO] [stderr]     Checking phf v0.11.2
[INFO] [stderr]     Checking foreign-types v0.5.0
[INFO] [stderr]     Checking csscolorparser v0.6.2
[INFO] [stderr]     Checking colorgrad v0.6.2
[INFO] [stderr]     Checking wgpu-hal v0.13.2
[INFO] [stderr]     Checking ravif v0.11.5
[INFO] [stderr]     Checking image v0.25.0
[INFO] [stderr]     Checking wgpu v0.13.1
[INFO] [stderr]     Checking sctk-adwaita v0.4.3
[INFO] [stderr]     Checking winit v0.27.5
[INFO] [stderr]     Checking final_exercice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `get_max_iterations` is never used
[INFO] [stdout]  --> src/mandelbrot.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub trait ColorMap {
[INFO] [stdout]   |           -------- method in this trait
[INFO] [stdout] 7 |     fn color(&self, i: u32) -> image::Rgb<u8>;
[INFO] [stdout] 8 |     fn get_max_iterations(&self) -> u32;
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]  --> src/util.rs:7:33
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn to_showable_image(image: &RgbImage) -> show_image::ImageView {
[INFO] [stdout]   |                                 ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]   |                                 |
[INFO] [stdout]   |                                 the lifetime is elided here
[INFO] [stdout]   |
[INFO] [stdout]   = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]   = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn to_showable_image(image: &RgbImage) -> show_image::ImageView<'_> {
[INFO] [stdout]   |                                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_max_iterations` is never used
[INFO] [stdout]  --> src/mandelbrot.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub trait ColorMap {
[INFO] [stdout]   |           -------- method in this trait
[INFO] [stdout] 7 |     fn color(&self, i: u32) -> image::Rgb<u8>;
[INFO] [stdout] 8 |     fn get_max_iterations(&self) -> u32;
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]  --> src/util.rs:7:33
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn to_showable_image(image: &RgbImage) -> show_image::ImageView {
[INFO] [stdout]   |                                 ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]   |                                 |
[INFO] [stdout]   |                                 the lifetime is elided here
[INFO] [stdout]   |
[INFO] [stdout]   = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]   = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn to_showable_image(image: &RgbImage) -> show_image::ImageView<'_> {
[INFO] [stdout]   |                                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 58.36s
[INFO] running `Command { std: "docker" "inspect" "dbbbe8cd1931fbdd0de23d005fd970750de6fbb71b08480a20ca87d92b2178bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbbbe8cd1931fbdd0de23d005fd970750de6fbb71b08480a20ca87d92b2178bb", kill_on_drop: false }`
[INFO] [stdout] dbbbe8cd1931fbdd0de23d005fd970750de6fbb71b08480a20ca87d92b2178bb