[INFO] cloning repository https://github.com/ogeagla/fesaic [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ogeagla/fesaic" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fogeagla%2Ffesaic", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fogeagla%2Ffesaic'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0cec7968b130575cc8494c78bb2c72d5a7bb87c8 [INFO] testing ogeagla/fesaic against beta-2021-01-01 for beta-1.50-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fogeagla%2Ffesaic" "/workspace/builds/worker-4/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ogeagla/fesaic on toolchain beta-2021-01-01 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/ogeagla/fesaic [INFO] finished tweaking git repo https://github.com/ogeagla/fesaic [INFO] tweaked toml for git repo https://github.com/ogeagla/fesaic written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/ogeagla/fesaic already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] error: the lock file /workspace/builds/worker-4/source/Cargo.lock needs to be updated but --locked was passed to prevent this [INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag. [INFO] the lockfile is outdated, regenerating it [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6cba96c27983c0bf5af23be3c1fb8a8a6e2319138b4d90718bde5b9103bfc9c2 [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" "6cba96c27983c0bf5af23be3c1fb8a8a6e2319138b4d90718bde5b9103bfc9c2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6cba96c27983c0bf5af23be3c1fb8a8a6e2319138b4d90718bde5b9103bfc9c2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6cba96c27983c0bf5af23be3c1fb8a8a6e2319138b4d90718bde5b9103bfc9c2", kill_on_drop: false }` [INFO] [stdout] 6cba96c27983c0bf5af23be3c1fb8a8a6e2319138b4d90718bde5b9103bfc9c2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e63de2ea5c5447b8f379d8e4493cb8e70986c4469bbcf76cb619e247456ca68e [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" "e63de2ea5c5447b8f379d8e4493cb8e70986c4469bbcf76cb619e247456ca68e", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling const_fn v0.4.5 [INFO] [stderr] Compiling libc v0.2.81 [INFO] [stderr] Compiling rayon-core v1.9.0 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling either v1.6.1 [INFO] [stderr] Compiling crc32fast v1.2.1 [INFO] [stderr] Compiling adler32 v1.2.0 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling weezl v0.1.3 [INFO] [stderr] Compiling adler v0.2.3 [INFO] [stderr] Compiling color_quant v1.1.0 [INFO] [stderr] Compiling scoped_threadpool v0.1.9 [INFO] [stderr] Compiling bytemuck v1.4.1 [INFO] [stderr] Compiling miniz_oxide v0.3.7 [INFO] [stderr] Compiling gif v0.11.1 [INFO] [stderr] Compiling crossbeam-utils v0.8.1 [INFO] [stderr] Compiling memoffset v0.6.1 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling num-bigint v0.3.1 [INFO] [stderr] Compiling rayon v1.5.0 [INFO] [stderr] Compiling miniz_oxide v0.4.3 [INFO] [stderr] Compiling num-iter v0.1.42 [INFO] [stderr] Compiling num-rational v0.3.2 [INFO] [stderr] Compiling deflate v0.8.6 [INFO] [stderr] Compiling num_cpus v1.13.0 [INFO] [stderr] Compiling png v0.16.8 [INFO] [stderr] Compiling crossbeam-epoch v0.9.1 [INFO] [stderr] Compiling crossbeam-channel v0.5.0 [INFO] [stderr] Compiling num-complex v0.3.1 [INFO] [stderr] Compiling crossbeam-deque v0.8.0 [INFO] [stderr] Compiling num v0.3.1 [INFO] [stderr] Compiling jpeg-decoder v0.1.20 [INFO] [stderr] Compiling tiff v0.6.1 [INFO] [stderr] Compiling image v0.23.12 [INFO] [stderr] Compiling fesaic v0.0.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::fs::File` [INFO] [stdout] --> src/main.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::fs::File; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::path::Path` [INFO] [stdout] --> src/main.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::path::Path; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `num::complex::Complex` [INFO] [stdout] --> src/main.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use num::complex::Complex; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `GenericImage`, `ImageBuffer` [INFO] [stdout] --> src/main.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | GenericImage, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] 11 | ImageBuffer, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `image::ColorType` [INFO] [stdout] --> src/main.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | use image::ColorType; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `pixel` [INFO] [stdout] --> src/main.rs:50:24 [INFO] [stdout] | [INFO] [stdout] 50 | for (_, _, pixel) in subimg.to_image().enumerate_pixels() { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_pixel` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `pix` [INFO] [stdout] --> src/main.rs:62:17 [INFO] [stdout] | [INFO] [stdout] 62 | let pix = image::Rgba([accR, accG, accB, accA]); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_pix` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `accR` should have a snake case name [INFO] [stdout] --> src/main.rs:44:21 [INFO] [stdout] | [INFO] [stdout] 44 | let mut accR = 0.0 as f32; [INFO] [stdout] | ^^^^ help: convert the identifier to snake case: `acc_r` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `accG` should have a snake case name [INFO] [stdout] --> src/main.rs:45:21 [INFO] [stdout] | [INFO] [stdout] 45 | let mut accG = 0.0 as f32; [INFO] [stdout] | ^^^^ help: convert the identifier to snake case: `acc_g` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `accB` should have a snake case name [INFO] [stdout] --> src/main.rs:46:21 [INFO] [stdout] | [INFO] [stdout] 46 | let mut accB = 0.0 as f32; [INFO] [stdout] | ^^^^ help: convert the identifier to snake case: `acc_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `accA` should have a snake case name [INFO] [stdout] --> src/main.rs:47:21 [INFO] [stdout] | [INFO] [stdout] 47 | let mut accA = 0.0 as f32; [INFO] [stdout] | ^^^^ help: convert the identifier to snake case: `acc_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 56.38s [INFO] running `Command { std: "docker" "inspect" "e63de2ea5c5447b8f379d8e4493cb8e70986c4469bbcf76cb619e247456ca68e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e63de2ea5c5447b8f379d8e4493cb8e70986c4469bbcf76cb619e247456ca68e", kill_on_drop: false }` [INFO] [stdout] e63de2ea5c5447b8f379d8e4493cb8e70986c4469bbcf76cb619e247456ca68e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2cc6d3a5ef9ff749c0d1c5db1e761024c8d3893e1273a439185657b674cc10eb [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" "2cc6d3a5ef9ff749c0d1c5db1e761024c8d3893e1273a439185657b674cc10eb", kill_on_drop: false }` [INFO] [stderr] Compiling fesaic v0.0.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::fs::File` [INFO] [stdout] --> src/main.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::fs::File; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::path::Path` [INFO] [stdout] --> src/main.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::path::Path; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `num::complex::Complex` [INFO] [stdout] --> src/main.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use num::complex::Complex; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `GenericImage`, `ImageBuffer` [INFO] [stdout] --> src/main.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | GenericImage, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] 11 | ImageBuffer, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `image::ColorType` [INFO] [stdout] --> src/main.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | use image::ColorType; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `pixel` [INFO] [stdout] --> src/main.rs:50:24 [INFO] [stdout] | [INFO] [stdout] 50 | for (_, _, pixel) in subimg.to_image().enumerate_pixels() { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_pixel` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `pix` [INFO] [stdout] --> src/main.rs:62:17 [INFO] [stdout] | [INFO] [stdout] 62 | let pix = image::Rgba([accR, accG, accB, accA]); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_pix` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `accR` should have a snake case name [INFO] [stdout] --> src/main.rs:44:21 [INFO] [stdout] | [INFO] [stdout] 44 | let mut accR = 0.0 as f32; [INFO] [stdout] | ^^^^ help: convert the identifier to snake case: `acc_r` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `accG` should have a snake case name [INFO] [stdout] --> src/main.rs:45:21 [INFO] [stdout] | [INFO] [stdout] 45 | let mut accG = 0.0 as f32; [INFO] [stdout] | ^^^^ help: convert the identifier to snake case: `acc_g` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `accB` should have a snake case name [INFO] [stdout] --> src/main.rs:46:21 [INFO] [stdout] | [INFO] [stdout] 46 | let mut accB = 0.0 as f32; [INFO] [stdout] | ^^^^ help: convert the identifier to snake case: `acc_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `accA` should have a snake case name [INFO] [stdout] --> src/main.rs:47:21 [INFO] [stdout] | [INFO] [stdout] 47 | let mut accA = 0.0 as f32; [INFO] [stdout] | ^^^^ help: convert the identifier to snake case: `acc_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.72s [INFO] running `Command { std: "docker" "inspect" "2cc6d3a5ef9ff749c0d1c5db1e761024c8d3893e1273a439185657b674cc10eb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2cc6d3a5ef9ff749c0d1c5db1e761024c8d3893e1273a439185657b674cc10eb", kill_on_drop: false }` [INFO] [stdout] 2cc6d3a5ef9ff749c0d1c5db1e761024c8d3893e1273a439185657b674cc10eb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 4d07f4c69ee5cab11aa0a716ebccb3784074c1ff49f37c73b366b8aee5747a13 [INFO] running `Command { std: "docker" "start" "-a" "4d07f4c69ee5cab11aa0a716ebccb3784074c1ff49f37c73b366b8aee5747a13", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `std::fs::File` [INFO] [stderr] --> src/main.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::fs::File; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::path::Path` [INFO] [stderr] --> src/main.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use std::path::Path; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `num::complex::Complex` [INFO] [stderr] --> src/main.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | use num::complex::Complex; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `GenericImage`, `ImageBuffer` [INFO] [stderr] --> src/main.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | GenericImage, [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] 11 | ImageBuffer, [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `image::ColorType` [INFO] [stderr] --> src/main.rs:14:5 [INFO] [stderr] | [INFO] [stderr] 14 | use image::ColorType; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `pixel` [INFO] [stderr] --> src/main.rs:50:24 [INFO] [stderr] | [INFO] [stderr] 50 | for (_, _, pixel) in subimg.to_image().enumerate_pixels() { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_pixel` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `pix` [INFO] [stderr] --> src/main.rs:62:17 [INFO] [stderr] | [INFO] [stderr] 62 | let pix = image::Rgba([accR, accG, accB, accA]); [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_pix` [INFO] [stderr] [INFO] [stderr] warning: variable `accR` should have a snake case name [INFO] [stderr] --> src/main.rs:44:21 [INFO] [stderr] | [INFO] [stderr] 44 | let mut accR = 0.0 as f32; [INFO] [stderr] | ^^^^ help: convert the identifier to snake case: `acc_r` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable `accG` should have a snake case name [INFO] [stderr] --> src/main.rs:45:21 [INFO] [stderr] | [INFO] [stderr] 45 | let mut accG = 0.0 as f32; [INFO] [stderr] | ^^^^ help: convert the identifier to snake case: `acc_g` [INFO] [stderr] [INFO] [stderr] warning: variable `accB` should have a snake case name [INFO] [stderr] --> src/main.rs:46:21 [INFO] [stderr] | [INFO] [stderr] 46 | let mut accB = 0.0 as f32; [INFO] [stderr] | ^^^^ help: convert the identifier to snake case: `acc_b` [INFO] [stderr] [INFO] [stderr] warning: variable `accA` should have a snake case name [INFO] [stderr] --> src/main.rs:47:21 [INFO] [stderr] | [INFO] [stderr] 47 | let mut accA = 0.0 as f32; [INFO] [stderr] | ^^^^ help: convert the identifier to snake case: `acc_a` [INFO] [stderr] [INFO] [stderr] warning: 11 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/fesaic-50fd79454f58728c [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "4d07f4c69ee5cab11aa0a716ebccb3784074c1ff49f37c73b366b8aee5747a13", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4d07f4c69ee5cab11aa0a716ebccb3784074c1ff49f37c73b366b8aee5747a13", kill_on_drop: false }` [INFO] [stdout] 4d07f4c69ee5cab11aa0a716ebccb3784074c1ff49f37c73b366b8aee5747a13