[INFO] cloning repository https://github.com/rukarangi/png_decoder_rukarangi [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rukarangi/png_decoder_rukarangi" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frukarangi%2Fpng_decoder_rukarangi", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frukarangi%2Fpng_decoder_rukarangi'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] cf9df1c65f1b92172c96f9170e8cba019ecb7a21 [INFO] checking rukarangi/png_decoder_rukarangi against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frukarangi%2Fpng_decoder_rukarangi" "/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/rukarangi/png_decoder_rukarangi on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/rukarangi/png_decoder_rukarangi [INFO] finished tweaking git repo https://github.com/rukarangi/png_decoder_rukarangi [INFO] tweaked toml for git repo https://github.com/rukarangi/png_decoder_rukarangi written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/rukarangi/png_decoder_rukarangi already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f3ef5ec72e8d515213f48f80b9fc48ef62d3b43143111ed5cdd5a047c6f4ca04 [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" "f3ef5ec72e8d515213f48f80b9fc48ef62d3b43143111ed5cdd5a047c6f4ca04", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f3ef5ec72e8d515213f48f80b9fc48ef62d3b43143111ed5cdd5a047c6f4ca04", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f3ef5ec72e8d515213f48f80b9fc48ef62d3b43143111ed5cdd5a047c6f4ca04", kill_on_drop: false }` [INFO] [stdout] f3ef5ec72e8d515213f48f80b9fc48ef62d3b43143111ed5cdd5a047c6f4ca04 [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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 41ac6a082a6920e0697bee82725499ca15706d971b36bf905f7bfb011561882b [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" "41ac6a082a6920e0697bee82725499ca15706d971b36bf905f7bfb011561882b", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Checking adler v1.0.2 [INFO] [stderr] Compiling miniz_oxide v0.4.4 [INFO] [stderr] Checking png_get_pixels v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/main.rs:151:5 [INFO] [stdout] | [INFO] [stdout] 146 | / match filter { [INFO] [stdout] 147 | | 0 => return Ok(data[target]), [INFO] [stdout] 148 | | _ => return Err("This filter type is not implemented"), [INFO] [stdout] 149 | | } [INFO] [stdout] | |_____- any code following this `match` expression is unreachable, as all arms diverge [INFO] [stdout] 150 | [INFO] [stdout] 151 | Ok(0x0) [INFO] [stdout] | ^^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `byte` [INFO] [stdout] --> src/main.rs:45:15 [INFO] [stdout] | [INFO] [stdout] 45 | for (idx, byte) in buf.iter().enumerate() { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_byte` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `dimension2_shiz` [INFO] [stdout] --> src/main.rs:97:9 [INFO] [stdout] | [INFO] [stdout] 97 | let dimension2_shiz = become_2d(&dat_inflated, width as usize, height as usize); [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_dimension2_shiz` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `pixels` [INFO] [stdout] --> src/main.rs:99:9 [INFO] [stdout] | [INFO] [stdout] 99 | let pixels: Vec = pixel_maker(dat_inflated, width, height, bit_depth, color_type); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_pixels` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/main.rs:107:9 [INFO] [stdout] | [INFO] [stdout] 107 | for y in 0..height { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/main.rs:108:13 [INFO] [stdout] | [INFO] [stdout] 108 | for x in 0..width { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `data` [INFO] [stdout] --> src/main.rs:104:14 [INFO] [stdout] | [INFO] [stdout] 104 | fn become_2d(data: &Vec, width: usize, height: usize) -> Vec> { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `good_byte` [INFO] [stdout] --> src/main.rs:128:13 [INFO] [stdout] | [INFO] [stdout] 128 | let good_byte = match apply_filter(filter, &data, 32, idx, bit_depth, color_type) { [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_good_byte` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `height` [INFO] [stdout] --> src/main.rs:116:43 [INFO] [stdout] | [INFO] [stdout] 116 | fn pixel_maker(data: Vec, width: u32, height: u32, bit_depth: u8, color_type: u8) -> Vec { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `bit_depth` [INFO] [stdout] --> src/main.rs:139:75 [INFO] [stdout] | [INFO] [stdout] 139 | fn apply_filter(filter: u8, data: &Vec, length: usize, target: usize, bit_depth: u8, color_type: u8) -> Result { [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bit_depth` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:105:9 [INFO] [stdout] | [INFO] [stdout] 105 | let mut output: Vec> = Vec::new(); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant is never used: `HEADER` [INFO] [stdout] --> src/main.rs:10:1 [INFO] [stdout] | [INFO] [stdout] 10 | const HEADER: [u8; 8] = [0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a]; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 12 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/main.rs:151:5 [INFO] [stdout] | [INFO] [stdout] 146 | / match filter { [INFO] [stdout] 147 | | 0 => return Ok(data[target]), [INFO] [stdout] 148 | | _ => return Err("This filter type is not implemented"), [INFO] [stdout] 149 | | } [INFO] [stdout] | |_____- any code following this `match` expression is unreachable, as all arms diverge [INFO] [stdout] 150 | [INFO] [stdout] 151 | Ok(0x0) [INFO] [stdout] | ^^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `byte` [INFO] [stdout] --> src/main.rs:45:15 [INFO] [stdout] | [INFO] [stdout] 45 | for (idx, byte) in buf.iter().enumerate() { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_byte` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `dimension2_shiz` [INFO] [stdout] --> src/main.rs:97:9 [INFO] [stdout] | [INFO] [stdout] 97 | let dimension2_shiz = become_2d(&dat_inflated, width as usize, height as usize); [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_dimension2_shiz` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `pixels` [INFO] [stdout] --> src/main.rs:99:9 [INFO] [stdout] | [INFO] [stdout] 99 | let pixels: Vec = pixel_maker(dat_inflated, width, height, bit_depth, color_type); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_pixels` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/main.rs:107:9 [INFO] [stdout] | [INFO] [stdout] 107 | for y in 0..height { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/main.rs:108:13 [INFO] [stdout] | [INFO] [stdout] 108 | for x in 0..width { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `data` [INFO] [stdout] --> src/main.rs:104:14 [INFO] [stdout] | [INFO] [stdout] 104 | fn become_2d(data: &Vec, width: usize, height: usize) -> Vec> { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `good_byte` [INFO] [stdout] --> src/main.rs:128:13 [INFO] [stdout] | [INFO] [stdout] 128 | let good_byte = match apply_filter(filter, &data, 32, idx, bit_depth, color_type) { [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_good_byte` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `height` [INFO] [stdout] --> src/main.rs:116:43 [INFO] [stdout] | [INFO] [stdout] 116 | fn pixel_maker(data: Vec, width: u32, height: u32, bit_depth: u8, color_type: u8) -> Vec { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `bit_depth` [INFO] [stdout] --> src/main.rs:139:75 [INFO] [stdout] | [INFO] [stdout] 139 | fn apply_filter(filter: u8, data: &Vec, length: usize, target: usize, bit_depth: u8, color_type: u8) -> Result { [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bit_depth` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:105:9 [INFO] [stdout] | [INFO] [stdout] 105 | let mut output: Vec> = Vec::new(); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant is never used: `HEADER` [INFO] [stdout] --> src/main.rs:10:1 [INFO] [stdout] | [INFO] [stdout] 10 | const HEADER: [u8; 8] = [0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a]; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 12 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.42s [INFO] running `Command { std: "docker" "inspect" "41ac6a082a6920e0697bee82725499ca15706d971b36bf905f7bfb011561882b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "41ac6a082a6920e0697bee82725499ca15706d971b36bf905f7bfb011561882b", kill_on_drop: false }` [INFO] [stdout] 41ac6a082a6920e0697bee82725499ca15706d971b36bf905f7bfb011561882b