[INFO] cloning repository https://github.com/TimBush/Rust-Pixel-Diff [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TimBush/Rust-Pixel-Diff" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTimBush%2FRust-Pixel-Diff", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTimBush%2FRust-Pixel-Diff'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 25e32e7fb6aa74f936820922b4c903d3750bd26b [INFO] checking TimBush/Rust-Pixel-Diff against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTimBush%2FRust-Pixel-Diff" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/TimBush/Rust-Pixel-Diff on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/TimBush/Rust-Pixel-Diff [INFO] finished tweaking git repo https://github.com/TimBush/Rust-Pixel-Diff [INFO] tweaked toml for git repo https://github.com/TimBush/Rust-Pixel-Diff written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/TimBush/Rust-Pixel-Diff 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: unused manifest key: package.author [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded crossbeam-channel v0.5.3 [INFO] [stderr] Downloaded flume v0.10.12 [INFO] [stderr] Downloaded image v0.24.1 [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4ae9a79ab9315d2916f0efebc851a7a7db324bf75e4433e71c50e8cf195b70f5 [INFO] running `Command { std: "docker" "start" "-a" "4ae9a79ab9315d2916f0efebc851a7a7db324bf75e4433e71c50e8cf195b70f5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4ae9a79ab9315d2916f0efebc851a7a7db324bf75e4433e71c50e8cf195b70f5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4ae9a79ab9315d2916f0efebc851a7a7db324bf75e4433e71c50e8cf195b70f5", kill_on_drop: false }` [INFO] [stdout] 4ae9a79ab9315d2916f0efebc851a7a7db324bf75e4433e71c50e8cf195b70f5 [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e838614379cdc0a2daeac27d46464eeb312af6e200a86be56d603dab28858082 [INFO] running `Command { std: "docker" "start" "-a" "e838614379cdc0a2daeac27d46464eeb312af6e200a86be56d603dab28858082", kill_on_drop: false }` [INFO] [stderr] warning: unused manifest key: package.author [INFO] [stderr] Compiling libc v0.2.120 [INFO] [stderr] Compiling syn v1.0.89 [INFO] [stderr] Compiling crossbeam-utils v0.8.8 [INFO] [stderr] Compiling memoffset v0.6.5 [INFO] [stderr] Compiling crossbeam-epoch v0.9.8 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling miniz_oxide v0.4.4 [INFO] [stderr] Compiling futures-core v0.3.21 [INFO] [stderr] Checking lock_api v0.4.6 [INFO] [stderr] Compiling rayon v1.5.1 [INFO] [stderr] Checking deflate v1.0.0 [INFO] [stderr] Compiling quote v1.0.16 [INFO] [stderr] Compiling indexmap v1.8.0 [INFO] [stderr] Compiling num-rational v0.4.0 [INFO] [stderr] Compiling num-iter v0.1.42 [INFO] [stderr] Checking spin v0.9.2 [INFO] [stderr] Checking futures-sink v0.3.21 [INFO] [stderr] Checking inflate v0.4.5 [INFO] [stderr] Checking miniz_oxide v0.5.1 [INFO] [stderr] Checking lebe v0.5.1 [INFO] [stderr] Checking jpeg-decoder v0.1.22 [INFO] [stderr] Checking bit_field v0.10.1 [INFO] [stderr] Checking half v1.8.2 [INFO] [stderr] Checking gif v0.11.3 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Checking os_str_bytes v6.0.0 [INFO] [stderr] Checking bytemuck v1.8.0 [INFO] [stderr] Checking crossbeam-channel v0.5.3 [INFO] [stderr] Checking textwrap v0.15.0 [INFO] [stderr] Checking crossbeam-deque v0.8.1 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking getrandom v0.2.5 [INFO] [stderr] Checking flate2 v1.0.22 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking png v0.17.5 [INFO] [stderr] Checking nanorand v0.7.0 [INFO] [stderr] Checking rayon-core v1.9.1 [INFO] [stderr] Checking threadpool v1.8.1 [INFO] [stderr] Checking tiff v0.7.1 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling pin-project-internal v1.0.10 [INFO] [stderr] Compiling clap_derive v3.1.4 [INFO] [stderr] Checking jpeg-decoder v0.2.2 [INFO] [stderr] Checking pin-project v1.0.10 [INFO] [stderr] Checking flume v0.10.12 [INFO] [stderr] Checking exr v1.4.1 [INFO] [stderr] Checking clap v3.1.6 [INFO] [stderr] Checking image v0.24.1 [INFO] [stderr] Checking png_diff v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Result` is imported redundantly [INFO] [stdout] --> src/lib.rs:2:9 [INFO] [stdout] | [INFO] [stdout] 2 | use std::result::Result; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Result` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fmt::Error` [INFO] [stdout] --> src/lib.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 4 | use std::fmt::Error; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Result` is imported redundantly [INFO] [stdout] --> src/lib.rs:2:9 [INFO] [stdout] | [INFO] [stdout] 2 | use std::result::Result; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Result` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fmt::Error` [INFO] [stdout] --> src/lib.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 4 | use std::fmt::Error; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:29:9 [INFO] [stdout] | [INFO] [stdout] 29 | for i in 0..num_of_pixels { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `delta_E` should have a snake case name [INFO] [stdout] --> src/main.rs:35:17 [INFO] [stdout] | [INFO] [stdout] 35 | let delta_E = calculate_delta_E(rgb1.0, rgb2.0); [INFO] [stdout] | ^^^^^^^ help: convert the identifier to snake case: `delta_e` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:29:9 [INFO] [stdout] | [INFO] [stdout] 29 | for i in 0..num_of_pixels { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `calculate_delta_E` should have a snake case name [INFO] [stdout] --> src/main.rs:55:4 [INFO] [stdout] | [INFO] [stdout] 55 | fn calculate_delta_E(color_1: [u8; 4], color_2: [u8; 4]) -> f64 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `calculate_delta_e` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `delta_E` should have a snake case name [INFO] [stdout] --> src/main.rs:35:17 [INFO] [stdout] | [INFO] [stdout] 35 | let delta_E = calculate_delta_E(rgb1.0, rgb2.0); [INFO] [stdout] | ^^^^^^^ help: convert the identifier to snake case: `delta_e` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `calculate_delta_E` should have a snake case name [INFO] [stdout] --> src/main.rs:55:4 [INFO] [stdout] | [INFO] [stdout] 55 | fn calculate_delta_E(color_1: [u8; 4], color_2: [u8; 4]) -> f64 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `calculate_delta_e` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.33s [INFO] running `Command { std: "docker" "inspect" "e838614379cdc0a2daeac27d46464eeb312af6e200a86be56d603dab28858082", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e838614379cdc0a2daeac27d46464eeb312af6e200a86be56d603dab28858082", kill_on_drop: false }` [INFO] [stdout] e838614379cdc0a2daeac27d46464eeb312af6e200a86be56d603dab28858082 [INFO] checking TimBush/Rust-Pixel-Diff against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTimBush%2FRust-Pixel-Diff" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/TimBush/Rust-Pixel-Diff on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/TimBush/Rust-Pixel-Diff [INFO] finished tweaking git repo https://github.com/TimBush/Rust-Pixel-Diff [INFO] tweaked toml for git repo https://github.com/TimBush/Rust-Pixel-Diff written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/TimBush/Rust-Pixel-Diff 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: unused manifest key: package.author [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5616a623e3355f1aba5790fcd9cf48723c5049894a10a3293c26b816157e4f3b [INFO] running `Command { std: "docker" "start" "-a" "5616a623e3355f1aba5790fcd9cf48723c5049894a10a3293c26b816157e4f3b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5616a623e3355f1aba5790fcd9cf48723c5049894a10a3293c26b816157e4f3b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5616a623e3355f1aba5790fcd9cf48723c5049894a10a3293c26b816157e4f3b", kill_on_drop: false }` [INFO] [stdout] 5616a623e3355f1aba5790fcd9cf48723c5049894a10a3293c26b816157e4f3b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ac992367ebf9781419d042375a72ce145d3ad0e78de9d70dd7df1b9d24b02931 [INFO] running `Command { std: "docker" "start" "-a" "ac992367ebf9781419d042375a72ce145d3ad0e78de9d70dd7df1b9d24b02931", kill_on_drop: false }` [INFO] [stderr] warning: unused manifest key: package.author [INFO] [stderr] Compiling libc v0.2.120 [INFO] [stderr] Compiling syn v1.0.89 [INFO] [stderr] Compiling crossbeam-utils v0.8.8 [INFO] [stderr] Compiling memoffset v0.6.5 [INFO] [stderr] Compiling crossbeam-epoch v0.9.8 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling miniz_oxide v0.4.4 [INFO] [stderr] Compiling futures-core v0.3.21 [INFO] [stderr] Checking lock_api v0.4.6 [INFO] [stderr] Compiling rayon v1.5.1 [INFO] [stderr] Checking deflate v1.0.0 [INFO] [stderr] Compiling quote v1.0.16 [INFO] [stderr] Compiling num-rational v0.4.0 [INFO] [stderr] Compiling num-iter v0.1.42 [INFO] [stderr] Compiling indexmap v1.8.0 [INFO] [stderr] Checking futures-sink v0.3.21 [INFO] [stderr] Checking inflate v0.4.5 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Checking miniz_oxide v0.5.1 [INFO] [stderr] Checking spin v0.9.2 [INFO] [stderr] Checking lebe v0.5.1 [INFO] [stderr] Checking bit_field v0.10.1 [INFO] [stderr] Checking jpeg-decoder v0.1.22 [INFO] [stderr] Checking half v1.8.2 [INFO] [stderr] Checking gif v0.11.3 [INFO] [stderr] Checking os_str_bytes v6.0.0 [INFO] [stderr] Checking bytemuck v1.8.0 [INFO] [stderr] Checking textwrap v0.15.0 [INFO] [stderr] Checking crossbeam-channel v0.5.3 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking getrandom v0.2.5 [INFO] [stderr] Checking flate2 v1.0.22 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking threadpool v1.8.1 [INFO] [stderr] Checking nanorand v0.7.0 [INFO] [stderr] Checking png v0.17.5 [INFO] [stderr] Checking crossbeam-deque v0.8.1 [INFO] [stderr] Checking tiff v0.7.1 [INFO] [stderr] Checking rayon-core v1.9.1 [INFO] [stderr] Checking jpeg-decoder v0.2.2 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling pin-project-internal v1.0.10 [INFO] [stderr] Compiling clap_derive v3.1.4 [INFO] [stderr] Checking pin-project v1.0.10 [INFO] [stderr] Checking flume v0.10.12 [INFO] [stderr] Checking exr v1.4.1 [INFO] [stderr] Checking clap v3.1.6 [INFO] [stderr] Checking image v0.24.1 [INFO] [stderr] Checking png_diff v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Result` is imported redundantly [INFO] [stdout] --> src/lib.rs:2:9 [INFO] [stdout] | [INFO] [stdout] 2 | use std::result::Result; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Result` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fmt::Error` [INFO] [stdout] --> src/lib.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 4 | use std::fmt::Error; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Result` is imported redundantly [INFO] [stdout] --> src/lib.rs:2:9 [INFO] [stdout] | [INFO] [stdout] 2 | use std::result::Result; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Result` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fmt::Error` [INFO] [stdout] --> src/lib.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 4 | use std::fmt::Error; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:29:9 [INFO] [stdout] | [INFO] [stdout] 29 | for i in 0..num_of_pixels { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `delta_E` should have a snake case name [INFO] [stdout] --> src/main.rs:35:17 [INFO] [stdout] | [INFO] [stdout] 35 | let delta_E = calculate_delta_E(rgb1.0, rgb2.0); [INFO] [stdout] | ^^^^^^^ help: convert the identifier to snake case: `delta_e` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `calculate_delta_E` should have a snake case name [INFO] [stdout] --> src/main.rs:55:4 [INFO] [stdout] | [INFO] [stdout] 55 | fn calculate_delta_E(color_1: [u8; 4], color_2: [u8; 4]) -> f64 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `calculate_delta_e` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:29:9 [INFO] [stdout] | [INFO] [stdout] 29 | for i in 0..num_of_pixels { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `delta_E` should have a snake case name [INFO] [stdout] --> src/main.rs:35:17 [INFO] [stdout] | [INFO] [stdout] 35 | let delta_E = calculate_delta_E(rgb1.0, rgb2.0); [INFO] [stdout] | ^^^^^^^ help: convert the identifier to snake case: `delta_e` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `calculate_delta_E` should have a snake case name [INFO] [stdout] --> src/main.rs:55:4 [INFO] [stdout] | [INFO] [stdout] 55 | fn calculate_delta_E(color_1: [u8; 4], color_2: [u8; 4]) -> f64 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `calculate_delta_e` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.81s [INFO] running `Command { std: "docker" "inspect" "ac992367ebf9781419d042375a72ce145d3ad0e78de9d70dd7df1b9d24b02931", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ac992367ebf9781419d042375a72ce145d3ad0e78de9d70dd7df1b9d24b02931", kill_on_drop: false }` [INFO] [stdout] ac992367ebf9781419d042375a72ce145d3ad0e78de9d70dd7df1b9d24b02931