[INFO] cloning repository https://github.com/uek-1/pngpeg
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/uek-1/pngpeg" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuek-1%2Fpngpeg", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuek-1%2Fpngpeg'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a7efed94148a71fb192cba9786048a2b02451edc
[INFO] testing uek-1/pngpeg against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuek-1%2Fpngpeg" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/uek-1/pngpeg
[INFO] finished tweaking git repo https://github.com/uek-1/pngpeg
[INFO] tweaked toml for git repo https://github.com/uek-1/pngpeg written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/uek-1/pngpeg on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/uek-1/pngpeg 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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f4a5a11402a58614d05c85ae91cf38a12ecb10b3a72eec1c8891c64ab3a9816c
[INFO] running `Command { std: "docker" "start" "-a" "f4a5a11402a58614d05c85ae91cf38a12ecb10b3a72eec1c8891c64ab3a9816c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f4a5a11402a58614d05c85ae91cf38a12ecb10b3a72eec1c8891c64ab3a9816c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4a5a11402a58614d05c85ae91cf38a12ecb10b3a72eec1c8891c64ab3a9816c", kill_on_drop: false }`
[INFO] [stdout] f4a5a11402a58614d05c85ae91cf38a12ecb10b3a72eec1c8891c64ab3a9816c
[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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 077fb4a717ddac501651ac3b0998d0776ba30e3cd9dbbbb98ccc708381b7bc52
[INFO] running `Command { std: "docker" "start" "-a" "077fb4a717ddac501651ac3b0998d0776ba30e3cd9dbbbb98ccc708381b7bc52", kill_on_drop: false }`
[INFO] [stderr]    Compiling miniz_oxide v0.7.1
[INFO] [stderr]    Compiling pngpeg v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `ColorType` and `Pixel`
[INFO] [stdout]  --> src/jpeg.rs:1:21
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{pixel::{Pixel, Pixels, ColorType}, png::DecPng};
[INFO] [stdout]   |                     ^^^^^          ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/jpeg.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::utils`
[INFO] [stdout]  --> src/jpeg.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::utils;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `DecJpeg` and `EncJpeg`
[INFO] [stdout]  --> src/main.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | use jpeg::{EncJpeg, DecJpeg};
[INFO] [stdout]   |            ^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pixels`
[INFO] [stdout]   --> src/jpeg.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn from(pixels : Pixels) -> JpegBlocks {
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_pixels`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `blocks`
[INFO] [stdout]    --> src/jpeg.rs:139:13
[INFO] [stdout]     |
[INFO] [stdout] 139 |         let blocks = JpegBlocks::from(subsampled);
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_blocks`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `zig_zag`
[INFO] [stdout]    --> src/utils.rs:992:27
[INFO] [stdout]     |
[INFO] [stdout] 992 | pub fn create_jpeg_stream(zig_zag: Vec<i32>, prev_dc : i32) -> Vec<u8> {
[INFO] [stdout]     |                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_zig_zag`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prev_dc`
[INFO] [stdout]    --> src/utils.rs:992:46
[INFO] [stdout]     |
[INFO] [stdout] 992 | pub fn create_jpeg_stream(zig_zag: Vec<i32>, prev_dc : i32) -> Vec<u8> {
[INFO] [stdout]     |                                              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prev_dc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Png` is never used
[INFO] [stdout]  --> src/png.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub enum Png {
[INFO] [stdout]   |          ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `set_scanlines`, and `get_scanlines` are never used
[INFO] [stdout]    --> src/png.rs:271:12
[INFO] [stdout]     |
[INFO] [stdout] 270 | impl DecPng {
[INFO] [stdout]     | ----------- associated items in this implementation
[INFO] [stdout] 271 |     pub fn new() -> DecPng {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 275 |     pub fn set_scanlines(&mut self, scanlines: Vec<Vec<Pixel>>) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 279 |     pub fn get_scanlines(&self) -> Pixels {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `JpegBlock` is never constructed
[INFO] [stdout]  --> src/jpeg.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct JpegBlock {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/jpeg.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl JpegBlock {
[INFO] [stdout]    | -------------- associated function in this implementation
[INFO] [stdout] 12 |     pub fn new(luma : Vec<Vec<u8>>, diff_blue : Vec<Vec<u8>>, diff_red : Vec<Vec<u8>>) -> JpegBlock {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `JpegBlocks` is never constructed
[INFO] [stdout]   --> src/jpeg.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct JpegBlocks(Vec<JpegBlock>);
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EncJpeg` is never constructed
[INFO] [stdout]   --> src/jpeg.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct EncJpeg {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `write_to_path` is never used
[INFO] [stdout]   --> src/jpeg.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 37 | impl EncJpeg {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] 38 |     pub fn write_to_path(&self, path : String) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DecJpeg` is never constructed
[INFO] [stdout]    --> src/jpeg.rs:150:12
[INFO] [stdout]     |
[INFO] [stdout] 150 | pub struct DecJpeg {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `write_bits` and `print_current_byte` are never used
[INFO] [stdout]    --> src/utils.rs:92:12
[INFO] [stdout]     |
[INFO] [stdout] 29  | impl Bits {
[INFO] [stdout]     | --------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 92  |     pub fn write_bits(&mut self, input: u32, num : usize) {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 129 |     pub fn print_current_byte(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_dct_matrix` is never used
[INFO] [stdout]    --> src/utils.rs:868:4
[INFO] [stdout]     |
[INFO] [stdout] 868 | fn generate_dct_matrix() -> Vec<Vec<f64>> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dct` is never used
[INFO] [stdout]    --> src/utils.rs:881:8
[INFO] [stdout]     |
[INFO] [stdout] 881 | pub fn dct(block: Vec<Vec<u8>>) -> Vec<Vec<i32>> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `quantize_luma` is never used
[INFO] [stdout]    --> src/utils.rs:915:8
[INFO] [stdout]     |
[INFO] [stdout] 915 | pub fn quantize_luma(block: Vec<Vec<i32>>) -> Vec<Vec<i32>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `quantize_chrom` is never used
[INFO] [stdout]    --> src/utils.rs:941:8
[INFO] [stdout]     |
[INFO] [stdout] 941 | pub fn quantize_chrom(block: Vec<Vec<i32>>) -> Vec<Vec<i32>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `zig_zag` is never used
[INFO] [stdout]    --> src/utils.rs:968:8
[INFO] [stdout]     |
[INFO] [stdout] 968 | pub fn zig_zag<T : Copy>(matrix : Vec<Vec<T>>) -> Vec<T> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_jpeg_stream` is never used
[INFO] [stdout]    --> src/utils.rs:992:8
[INFO] [stdout]     |
[INFO] [stdout] 992 | pub fn create_jpeg_stream(zig_zag: Vec<i32>, prev_dc : i32) -> Vec<u8> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `SubtractAmount` is never used
[INFO] [stdout]     --> src/utils.rs:1039:7
[INFO] [stdout]      |
[INFO] [stdout] 1039 | trait SubtractAmount<T> {
[INFO] [stdout]      |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `MatrixMultiply` is never used
[INFO] [stdout]     --> src/utils.rs:1043:7
[INFO] [stdout]      |
[INFO] [stdout] 1043 | trait MatrixMultiply<T : Mul<Output = T> + Add<Output = T> +  From<u8> + Copy> {
[INFO] [stdout]      |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Transpose` is never used
[INFO] [stdout]     --> src/utils.rs:1052:7
[INFO] [stdout]      |
[INFO] [stdout] 1052 | trait Transpose<T> {
[INFO] [stdout]      |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `YCbCr` is never constructed
[INFO] [stdout]   --> src/pixel.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 4  | pub enum ColorType {
[INFO] [stdout]    |          --------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 10 |     YCbCr,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ColorType` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `channels` is never read
[INFO] [stdout]   --> src/pixel.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub struct Pixel {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 39 |     color_type : ColorType,
[INFO] [stdout] 40 |     channels : usize,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Pixel` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `rgb_to_ycbcr` and `to_ycbcr` are never used
[INFO] [stdout]    --> src/pixel.rs:64:8
[INFO] [stdout]     |
[INFO] [stdout] 44  | impl Pixel {
[INFO] [stdout]     | ---------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 64  |     fn rgb_to_ycbcr(r: u8, g: u8, b: u8) -> Vec<u8> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 107 |     pub fn to_ycbcr(&self) -> Pixel {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `to_ycbcr` and `subsample_ycbcr` are never used
[INFO] [stdout]    --> src/pixel.rs:159:12
[INFO] [stdout]     |
[INFO] [stdout] 125 | impl Pixels {
[INFO] [stdout]     | ----------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 159 |     pub fn to_ycbcr(&self) -> Pixels {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 173 |     pub fn subsample_ycbcr(&self) -> Pixels {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/jpeg.rs:129:9
[INFO] [stdout]     |
[INFO] [stdout] 129 |         std::fs::write(path, write_bytes);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 129 |         let _ = std::fs::write(path, write_bytes);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.82s
[INFO] running `Command { std: "docker" "inspect" "077fb4a717ddac501651ac3b0998d0776ba30e3cd9dbbbb98ccc708381b7bc52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "077fb4a717ddac501651ac3b0998d0776ba30e3cd9dbbbb98ccc708381b7bc52", kill_on_drop: false }`
[INFO] [stdout] 077fb4a717ddac501651ac3b0998d0776ba30e3cd9dbbbb98ccc708381b7bc52
[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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b5f7045735800a092a54ed6d5bdfac083411d840238a446a93d66324b9c8ee76
[INFO] running `Command { std: "docker" "start" "-a" "b5f7045735800a092a54ed6d5bdfac083411d840238a446a93d66324b9c8ee76", kill_on_drop: false }`
[INFO] [stderr]    Compiling pngpeg v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `ColorType` and `Pixel`
[INFO] [stdout]  --> src/jpeg.rs:1:21
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{pixel::{Pixel, Pixels, ColorType}, png::DecPng};
[INFO] [stdout]   |                     ^^^^^          ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/jpeg.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::utils`
[INFO] [stdout]  --> src/jpeg.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::utils;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `DecJpeg` and `EncJpeg`
[INFO] [stdout]  --> src/main.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | use jpeg::{EncJpeg, DecJpeg};
[INFO] [stdout]   |            ^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pixels`
[INFO] [stdout]   --> src/jpeg.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn from(pixels : Pixels) -> JpegBlocks {
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_pixels`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `blocks`
[INFO] [stdout]    --> src/jpeg.rs:139:13
[INFO] [stdout]     |
[INFO] [stdout] 139 |         let blocks = JpegBlocks::from(subsampled);
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_blocks`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `zig_zag`
[INFO] [stdout]    --> src/utils.rs:992:27
[INFO] [stdout]     |
[INFO] [stdout] 992 | pub fn create_jpeg_stream(zig_zag: Vec<i32>, prev_dc : i32) -> Vec<u8> {
[INFO] [stdout]     |                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_zig_zag`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prev_dc`
[INFO] [stdout]    --> src/utils.rs:992:46
[INFO] [stdout]     |
[INFO] [stdout] 992 | pub fn create_jpeg_stream(zig_zag: Vec<i32>, prev_dc : i32) -> Vec<u8> {
[INFO] [stdout]     |                                              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prev_dc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `subtracted`
[INFO] [stdout]     --> src/utils.rs:1093:13
[INFO] [stdout]      |
[INFO] [stdout] 1093 |         let subtracted = matrix.subtract_amount(5);
[INFO] [stdout]      |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_subtracted`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/utils.rs:1085:13
[INFO] [stdout]      |
[INFO] [stdout] 1085 |         let mut count : u8 = 0;
[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: enum `Png` is never used
[INFO] [stdout]  --> src/png.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub enum Png {
[INFO] [stdout]   |          ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `set_scanlines`, and `get_scanlines` are never used
[INFO] [stdout]    --> src/png.rs:271:12
[INFO] [stdout]     |
[INFO] [stdout] 270 | impl DecPng {
[INFO] [stdout]     | ----------- associated items in this implementation
[INFO] [stdout] 271 |     pub fn new() -> DecPng {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 275 |     pub fn set_scanlines(&mut self, scanlines: Vec<Vec<Pixel>>) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 279 |     pub fn get_scanlines(&self) -> Pixels {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `JpegBlock` is never constructed
[INFO] [stdout]  --> src/jpeg.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct JpegBlock {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/jpeg.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl JpegBlock {
[INFO] [stdout]    | -------------- associated function in this implementation
[INFO] [stdout] 12 |     pub fn new(luma : Vec<Vec<u8>>, diff_blue : Vec<Vec<u8>>, diff_red : Vec<Vec<u8>>) -> JpegBlock {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `JpegBlocks` is never constructed
[INFO] [stdout]   --> src/jpeg.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct JpegBlocks(Vec<JpegBlock>);
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EncJpeg` is never constructed
[INFO] [stdout]   --> src/jpeg.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct EncJpeg {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `write_to_path` is never used
[INFO] [stdout]   --> src/jpeg.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 37 | impl EncJpeg {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] 38 |     pub fn write_to_path(&self, path : String) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DecJpeg` is never constructed
[INFO] [stdout]    --> src/jpeg.rs:150:12
[INFO] [stdout]     |
[INFO] [stdout] 150 | pub struct DecJpeg {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `write_jpeg_test` is never used
[INFO] [stdout]    --> src/jpeg.rs:173:8
[INFO] [stdout]     |
[INFO] [stdout] 173 |     fn write_jpeg_test() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print_current_byte` is never used
[INFO] [stdout]    --> src/utils.rs:129:12
[INFO] [stdout]     |
[INFO] [stdout] 29  | impl Bits {
[INFO] [stdout]     | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 129 |     pub fn print_current_byte(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dct` is never used
[INFO] [stdout]    --> src/utils.rs:881:8
[INFO] [stdout]     |
[INFO] [stdout] 881 | pub fn dct(block: Vec<Vec<u8>>) -> Vec<Vec<i32>> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `quantize_luma` is never used
[INFO] [stdout]    --> src/utils.rs:915:8
[INFO] [stdout]     |
[INFO] [stdout] 915 | pub fn quantize_luma(block: Vec<Vec<i32>>) -> Vec<Vec<i32>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `quantize_chrom` is never used
[INFO] [stdout]    --> src/utils.rs:941:8
[INFO] [stdout]     |
[INFO] [stdout] 941 | pub fn quantize_chrom(block: Vec<Vec<i32>>) -> Vec<Vec<i32>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_jpeg_stream` is never used
[INFO] [stdout]    --> src/utils.rs:992:8
[INFO] [stdout]     |
[INFO] [stdout] 992 | pub fn create_jpeg_stream(zig_zag: Vec<i32>, prev_dc : i32) -> Vec<u8> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `SubtractAmount` is never used
[INFO] [stdout]     --> src/utils.rs:1039:7
[INFO] [stdout]      |
[INFO] [stdout] 1039 | trait SubtractAmount<T> {
[INFO] [stdout]      |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `MatrixMultiply` is never used
[INFO] [stdout]     --> src/utils.rs:1043:7
[INFO] [stdout]      |
[INFO] [stdout] 1043 | trait MatrixMultiply<T : Mul<Output = T> + Add<Output = T> +  From<u8> + Copy> {
[INFO] [stdout]      |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check_dct` is never used
[INFO] [stdout]     --> src/utils.rs:1083:8
[INFO] [stdout]      |
[INFO] [stdout] 1083 |     fn check_dct() {
[INFO] [stdout]      |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `YCbCr` is never constructed
[INFO] [stdout]   --> src/pixel.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 4  | pub enum ColorType {
[INFO] [stdout]    |          --------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 10 |     YCbCr,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ColorType` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `channels` is never read
[INFO] [stdout]   --> src/pixel.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub struct Pixel {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 39 |     color_type : ColorType,
[INFO] [stdout] 40 |     channels : usize,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Pixel` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_ycbcr` is never used
[INFO] [stdout]    --> src/pixel.rs:107:12
[INFO] [stdout]     |
[INFO] [stdout] 44  | impl Pixel {
[INFO] [stdout]     | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 107 |     pub fn to_ycbcr(&self) -> Pixel {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `to_ycbcr` and `subsample_ycbcr` are never used
[INFO] [stdout]    --> src/pixel.rs:159:12
[INFO] [stdout]     |
[INFO] [stdout] 125 | impl Pixels {
[INFO] [stdout]     | ----------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 159 |     pub fn to_ycbcr(&self) -> Pixels {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 173 |     pub fn subsample_ycbcr(&self) -> Pixels {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/jpeg.rs:129:9
[INFO] [stdout]     |
[INFO] [stdout] 129 |         std::fs::write(path, write_bytes);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 129 |         let _ = std::fs::write(path, write_bytes);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "b5f7045735800a092a54ed6d5bdfac083411d840238a446a93d66324b9c8ee76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5f7045735800a092a54ed6d5bdfac083411d840238a446a93d66324b9c8ee76", kill_on_drop: false }`
[INFO] [stdout] b5f7045735800a092a54ed6d5bdfac083411d840238a446a93d66324b9c8ee76
[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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cb6fbe9fa09a360f2aa72211ae4cc805437ee5117b5a11046fef919dad537e92
[INFO] running `Command { std: "docker" "start" "-a" "cb6fbe9fa09a360f2aa72211ae4cc805437ee5117b5a11046fef919dad537e92", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `ColorType` and `Pixel`
[INFO] [stderr]  --> src/jpeg.rs:1:21
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::{pixel::{Pixel, Pixels, ColorType}, png::DecPng};
[INFO] [stderr]   |                     ^^^^^          ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs`
[INFO] [stderr]  --> src/jpeg.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::fs;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::utils`
[INFO] [stderr]  --> src/jpeg.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crate::utils;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `DecJpeg` and `EncJpeg`
[INFO] [stderr]  --> src/main.rs:8:12
[INFO] [stderr]   |
[INFO] [stderr] 8 | use jpeg::{EncJpeg, DecJpeg};
[INFO] [stderr]   |            ^^^^^^^  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pixels`
[INFO] [stderr]   --> src/jpeg.rs:26:13
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn from(pixels : Pixels) -> JpegBlocks {
[INFO] [stderr]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_pixels`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `blocks`
[INFO] [stderr]    --> src/jpeg.rs:139:13
[INFO] [stderr]     |
[INFO] [stderr] 139 |         let blocks = JpegBlocks::from(subsampled);
[INFO] [stderr]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_blocks`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `zig_zag`
[INFO] [stderr]    --> src/utils.rs:992:27
[INFO] [stderr]     |
[INFO] [stderr] 992 | pub fn create_jpeg_stream(zig_zag: Vec<i32>, prev_dc : i32) -> Vec<u8> {
[INFO] [stderr]     |                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_zig_zag`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `prev_dc`
[INFO] [stderr]    --> src/utils.rs:992:46
[INFO] [stderr]     |
[INFO] [stderr] 992 | pub fn create_jpeg_stream(zig_zag: Vec<i32>, prev_dc : i32) -> Vec<u8> {
[INFO] [stderr]     |                                              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prev_dc`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `subtracted`
[INFO] [stderr]     --> src/utils.rs:1093:13
[INFO] [stderr]      |
[INFO] [stderr] 1093 |         let subtracted = matrix.subtract_amount(5);
[INFO] [stderr]      |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_subtracted`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]     --> src/utils.rs:1085:13
[INFO] [stderr]      |
[INFO] [stderr] 1085 |         let mut count : u8 = 0;
[INFO] [stderr]      |             ----^^^^^
[INFO] [stderr]      |             |
[INFO] [stderr]      |             help: remove this `mut`
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Png` is never used
[INFO] [stderr]  --> src/png.rs:6:10
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub enum Png {
[INFO] [stderr]   |          ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `set_scanlines`, and `get_scanlines` are never used
[INFO] [stderr]    --> src/png.rs:271:12
[INFO] [stderr]     |
[INFO] [stderr] 270 | impl DecPng {
[INFO] [stderr]     | ----------- associated items in this implementation
[INFO] [stderr] 271 |     pub fn new() -> DecPng {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 275 |     pub fn set_scanlines(&mut self, scanlines: Vec<Vec<Pixel>>) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 279 |     pub fn get_scanlines(&self) -> Pixels {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `JpegBlock` is never constructed
[INFO] [stderr]  --> src/jpeg.rs:5:12
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct JpegBlock {
[INFO] [stderr]   |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/jpeg.rs:12:12
[INFO] [stderr]    |
[INFO] [stderr] 11 | impl JpegBlock {
[INFO] [stderr]    | -------------- associated function in this implementation
[INFO] [stderr] 12 |     pub fn new(luma : Vec<Vec<u8>>, diff_blue : Vec<Vec<u8>>, diff_red : Vec<Vec<u8>>) -> JpegBlock {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `JpegBlocks` is never constructed
[INFO] [stderr]   --> src/jpeg.rs:22:12
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub struct JpegBlocks(Vec<JpegBlock>);
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `EncJpeg` is never constructed
[INFO] [stderr]   --> src/jpeg.rs:33:12
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub struct EncJpeg {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `write_to_path` is never used
[INFO] [stderr]   --> src/jpeg.rs:38:12
[INFO] [stderr]    |
[INFO] [stderr] 37 | impl EncJpeg {
[INFO] [stderr]    | ------------ method in this implementation
[INFO] [stderr] 38 |     pub fn write_to_path(&self, path : String) {
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `DecJpeg` is never constructed
[INFO] [stderr]    --> src/jpeg.rs:150:12
[INFO] [stderr]     |
[INFO] [stderr] 150 | pub struct DecJpeg {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `write_jpeg_test` is never used
[INFO] [stderr]    --> src/jpeg.rs:173:8
[INFO] [stderr]     |
[INFO] [stderr] 173 |     fn write_jpeg_test() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `print_current_byte` is never used
[INFO] [stderr]    --> src/utils.rs:129:12
[INFO] [stderr]     |
[INFO] [stderr] 29  | impl Bits {
[INFO] [stderr]     | --------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 129 |     pub fn print_current_byte(&mut self) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `dct` is never used
[INFO] [stderr]    --> src/utils.rs:881:8
[INFO] [stderr]     |
[INFO] [stderr] 881 | pub fn dct(block: Vec<Vec<u8>>) -> Vec<Vec<i32>> {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `quantize_luma` is never used
[INFO] [stderr]    --> src/utils.rs:915:8
[INFO] [stderr]     |
[INFO] [stderr] 915 | pub fn quantize_luma(block: Vec<Vec<i32>>) -> Vec<Vec<i32>> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `quantize_chrom` is never used
[INFO] [stderr]    --> src/utils.rs:941:8
[INFO] [stderr]     |
[INFO] [stderr] 941 | pub fn quantize_chrom(block: Vec<Vec<i32>>) -> Vec<Vec<i32>> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `create_jpeg_stream` is never used
[INFO] [stderr]    --> src/utils.rs:992:8
[INFO] [stderr]     |
[INFO] [stderr] 992 | pub fn create_jpeg_stream(zig_zag: Vec<i32>, prev_dc : i32) -> Vec<u8> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `SubtractAmount` is never used
[INFO] [stderr]     --> src/utils.rs:1039:7
[INFO] [stderr]      |
[INFO] [stderr] 1039 | trait SubtractAmount<T> {
[INFO] [stderr]      |       ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `MatrixMultiply` is never used
[INFO] [stderr]     --> src/utils.rs:1043:7
[INFO] [stderr]      |
[INFO] [stderr] 1043 | trait MatrixMultiply<T : Mul<Output = T> + Add<Output = T> +  From<u8> + Copy> {
[INFO] [stderr]      |       ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `check_dct` is never used
[INFO] [stderr]     --> src/utils.rs:1083:8
[INFO] [stderr]      |
[INFO] [stderr] 1083 |     fn check_dct() {
[INFO] [stderr]      |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant `YCbCr` is never constructed
[INFO] [stderr]   --> src/pixel.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 4  | pub enum ColorType {
[INFO] [stderr]    |          --------- variant in this enum
[INFO] [stderr] ...
[INFO] [stderr] 10 |     YCbCr,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `ColorType` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `channels` is never read
[INFO] [stderr]   --> src/pixel.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 38 | pub struct Pixel {
[INFO] [stderr]    |            ----- field in this struct
[INFO] [stderr] 39 |     color_type : ColorType,
[INFO] [stderr] 40 |     channels : usize,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Pixel` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: method `to_ycbcr` is never used
[INFO] [stderr]    --> src/pixel.rs:107:12
[INFO] [stderr]     |
[INFO] [stderr] 44  | impl Pixel {
[INFO] [stderr]     | ---------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 107 |     pub fn to_ycbcr(&self) -> Pixel {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `to_ycbcr` and `subsample_ycbcr` are never used
[INFO] [stderr]    --> src/pixel.rs:159:12
[INFO] [stderr]     |
[INFO] [stderr] 125 | impl Pixels {
[INFO] [stderr]     | ----------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 159 |     pub fn to_ycbcr(&self) -> Pixels {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 173 |     pub fn subsample_ycbcr(&self) -> Pixels {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/jpeg.rs:129:9
[INFO] [stderr]     |
[INFO] [stderr] 129 |         std::fs::write(path, write_bytes);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 129 |         let _ = std::fs::write(path, write_bytes);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `pngpeg` (bin "pngpeg" test) generated 32 warnings (run `cargo fix --bin "pngpeg" --tests` to apply 5 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/pngpeg-4421caa8b1009645)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test utils::tests::check_dct_matrix ... ok
[INFO] [stdout] test utils::tests::check_zig_zag ... ok
[INFO] [stdout] test utils::tests::check_transpose ... ok
[INFO] [stdout] test pixel::tests::test_rgb_ycbcr ... FAILED
[INFO] [stdout] test utils::tests::check_bits_write ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- pixel::tests::test_rgb_ycbcr stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'pixel::tests::test_rgb_ycbcr' panicked at src/pixel.rs:224:9:
[INFO] [stdout] assertion `left == right` failed
[INFO] [stdout]   left: [0, 255, 255]
[INFO] [stdout]  right: [255, 128, 127]
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x64d989279652 - std::backtrace_rs::backtrace::libunwind::trace::h73a647620bf1c49d
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x64d989279652 - std::backtrace_rs::backtrace::trace_unsynchronized::hd4d513ed96cb3cb1
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x64d989279652 - std::sys::backtrace::_print_fmt::h61bb95f7476aafa5
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x64d989279652 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::ha2e7e3a01df69042
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x64d98929eaf3 - core::fmt::rt::Argument::fmt::hf14163372f0f9a76
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x64d98929eaf3 - core::fmt::write::h7cb8f63788cd01d2
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/fmt/mod.rs:1465:25
[INFO] [stdout]    6:     0x64d9892765e3 - std::io::default_write_fmt::h9ed739ccee8a150c
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x64d9892765e3 - std::io::Write::write_fmt::h1c0a32da913b32f1
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x64d9892794a2 - std::sys::backtrace::BacktraceLock::print::h3ec4d7883eb25e61
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x64d98927abbc - std::panicking::default_hook::{{closure}}::h29548987efd832cb
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:300:27
[INFO] [stdout]   10:     0x64d98927aa12 - std::panicking::default_hook::ha25170a15c643514
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:324:9
[INFO] [stdout]   11:     0x64d989242b34 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h562adeecbf43c420
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   12:     0x64d989242b34 - test::test_main_with_exit_callback::{{closure}}::h97dd2a879d27e0e4
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x64d98927b59b - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h7e85cbdbda26fdb7
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   14:     0x64d98927b59b - std::panicking::rust_panic_with_hook::h0d81afcd829aa24b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:841:13
[INFO] [stdout]   15:     0x64d98927b36a - std::panicking::begin_panic_handler::{{closure}}::hc84a33f1202346cf
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:706:13
[INFO] [stdout]   16:     0x64d989279b49 - std::sys::backtrace::__rust_end_short_backtrace::h373067a14f6c59aa
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:168:18
[INFO] [stdout]   17:     0x64d98927affd - __rustc[beb0385846a06d21]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:697:5
[INFO] [stdout]   18:     0x64d98929d290 - core::panicking::panic_fmt::ha33fa2ae772efba9
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panicking.rs:75:14
[INFO] [stdout]   19:     0x64d98929d527 - core::panicking::assert_failed_inner::h6a89cd271393c011
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panicking.rs:448:17
[INFO] [stdout]   20:     0x64d98920878d - core::panicking::assert_failed::h5d74e9ece476390f
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panicking.rs:403:5
[INFO] [stdout]   21:     0x64d989207bda - pngpeg::pixel::tests::test_rgb_ycbcr::hbad7ea6b368a34ae
[INFO] [stdout]                                at /opt/rustwide/workdir/src/pixel.rs:224:9
[INFO] [stdout]   22:     0x64d989207bda - pngpeg::pixel::tests::test_rgb_ycbcr::{{closure}}::h972c443f57e652b7
[INFO] [stdout]                                at /opt/rustwide/workdir/src/pixel.rs:223:24
[INFO] [stdout]   23:     0x64d989207bda - core::ops::function::FnOnce::call_once::h616ad743b1def600
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x64d98924826b - core::ops::function::FnOnce::call_once::hf84b9c3d864a6959
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x64d98924826b - test::__rust_begin_short_backtrace::h5724e31441c16fcb
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:648:18
[INFO] [stdout]   26:     0x64d9892474ae - test::run_test_in_process::{{closure}}::hbc28c9aa91793d7d
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:671:74
[INFO] [stdout]   27:     0x64d9892474ae - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hc17b0e238c0f8f3e
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   28:     0x64d9892474ae - std::panicking::catch_unwind::do_call::hcdbce0d6dd6c83ce
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:589:40
[INFO] [stdout]   29:     0x64d9892474ae - std::panicking::catch_unwind::h9477967ceea044e8
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:552:19
[INFO] [stdout]   30:     0x64d9892474ae - std::panic::catch_unwind::h616a2e249da12e16
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x64d9892474ae - test::run_test_in_process::h2758deb0f2e54430
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:671:27
[INFO] [stdout]   32:     0x64d9892474ae - test::run_test::{{closure}}::habe5cd2564b18aaa
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:592:43
[INFO] [stdout]   33:     0x64d98920b054 - test::run_test::{{closure}}::h9a0a6928f1a15421
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:622:41
[INFO] [stdout]   34:     0x64d98920b054 - std::sys::backtrace::__rust_begin_short_backtrace::hd68b5332434a22ca
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:152:18
[INFO] [stdout]   35:     0x64d98920e9fa - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h264ddcc3098eacae
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   36:     0x64d98920e9fa - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h9fa39489749d6f3c
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   37:     0x64d98920e9fa - std::panicking::catch_unwind::do_call::hb9a1944b9f85100f
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:589:40
[INFO] [stdout]   38:     0x64d98920e9fa - std::panicking::catch_unwind::h0c6f100786c0dad8
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:552:19
[INFO] [stdout]   39:     0x64d98920e9fa - std::panic::catch_unwind::hf6084e2723385823
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x64d98920e9fa - std::thread::Builder::spawn_unchecked_::{{closure}}::hf0af58ce658143ad
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   41:     0x64d98920e9fa - core::ops::function::FnOnce::call_once{{vtable.shim}}::h88a14f9b2e79f9de
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x64d98927e4f7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf31256ba38644b65
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   43:     0x64d98927e4f7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h100ad77f3448041b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   44:     0x64d98927e4f7 - std::sys::pal::unix::thread::Thread::new::thread_start::h1a22ded422ce395b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/pal/unix/thread.rs:97:17
[INFO] [stdout]   45:     0x7c6967da0aa4 - <unknown>
[INFO] [stdout]   46:     0x7c6967e2da34 - clone
[INFO] [stdout]   47:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- utils::tests::check_bits_write stdout ----
[INFO] [stdout] 1
[INFO] [stdout] 1
[INFO] [stdout] 1
[INFO] [stdout] 0
[INFO] [stdout] 1
[INFO] [stdout] 1
[INFO] [stdout] 0b0
[INFO] [stdout] 
[INFO] [stdout] thread 'utils::tests::check_bits_write' panicked at src/utils.rs:1119:9:
[INFO] [stdout] assertion `left == right` failed
[INFO] [stdout]   left: 6
[INFO] [stdout]  right: 0
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x64d989279652 - std::backtrace_rs::backtrace::libunwind::trace::h73a647620bf1c49d
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x64d989279652 - std::backtrace_rs::backtrace::trace_unsynchronized::hd4d513ed96cb3cb1
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x64d989279652 - std::sys::backtrace::_print_fmt::h61bb95f7476aafa5
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x64d989279652 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::ha2e7e3a01df69042
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x64d98929eaf3 - core::fmt::rt::Argument::fmt::hf14163372f0f9a76
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x64d98929eaf3 - core::fmt::write::h7cb8f63788cd01d2
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/fmt/mod.rs:1465:25
[INFO] [stdout]    6:     0x64d9892765e3 - std::io::default_write_fmt::h9ed739ccee8a150c
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x64d9892765e3 - std::io::Write::write_fmt::h1c0a32da913b32f1
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x64d9892794a2 - std::sys::backtrace::BacktraceLock::print::h3ec4d7883eb25e61
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x64d98927abbc - std::panicking::default_hook::{{closure}}::h29548987efd832cb
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:300:27
[INFO] [stdout]   10:     0x64d98927aa12 - std::panicking::default_hook::ha25170a15c643514
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:324:9
[INFO] [stdout]   11:     0x64d989242b34 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h562adeecbf43c420
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   12:     0x64d989242b34 - test::test_main_with_exit_callback::{{closure}}::h97dd2a879d27e0e4
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x64d98927b59b - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h7e85cbdbda26fdb7
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   14:     0x64d98927b59b - std::panicking::rust_panic_with_hook::h0d81afcd829aa24b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:841:13
[INFO] [stdout]   15:     0x64d98927b36a - std::panicking::begin_panic_handler::{{closure}}::hc84a33f1202346cf
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:706:13
[INFO] [stdout]   16:     0x64d989279b49 - std::sys::backtrace::__rust_end_short_backtrace::h373067a14f6c59aa
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:168:18
[INFO] [stdout]   17:     0x64d98927affd - __rustc[beb0385846a06d21]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:697:5
[INFO] [stdout]   18:     0x64d98929d290 - core::panicking::panic_fmt::ha33fa2ae772efba9
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panicking.rs:75:14
[INFO] [stdout]   19:     0x64d98929d527 - core::panicking::assert_failed_inner::h6a89cd271393c011
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panicking.rs:448:17
[INFO] [stdout]   20:     0x64d9892087c8 - core::panicking::assert_failed::h93ad523f2441a194
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panicking.rs:403:5
[INFO] [stdout]   21:     0x64d9892086a2 - pngpeg::utils::tests::check_bits_write::h97042b351dfd3fdb
[INFO] [stdout]                                at /opt/rustwide/workdir/src/utils.rs:1119:9
[INFO] [stdout]   22:     0x64d9892086a2 - pngpeg::utils::tests::check_bits_write::{{closure}}::h0af94c92e096b4d2
[INFO] [stdout]                                at /opt/rustwide/workdir/src/utils.rs:1107:26
[INFO] [stdout]   23:     0x64d9892086a2 - core::ops::function::FnOnce::call_once::hd518cc461a89cd7e
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x64d98924826b - core::ops::function::FnOnce::call_once::hf84b9c3d864a6959
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x64d98924826b - test::__rust_begin_short_backtrace::h5724e31441c16fcb
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:648:18
[INFO] [stdout]   26:     0x64d9892474ae - test::run_test_in_process::{{closure}}::hbc28c9aa91793d7d
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:671:74
[INFO] [stdout]   27:     0x64d9892474ae - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hc17b0e238c0f8f3e
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   28:     0x64d9892474ae - std::panicking::catch_unwind::do_call::hcdbce0d6dd6c83ce
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:589:40
[INFO] [stdout]   29:     0x64d9892474ae - std::panicking::catch_unwind::h9477967ceea044e8
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:552:19
[INFO] [stdout]   30:     0x64d9892474ae - std::panic::catch_unwind::h616a2e249da12e16
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x64d9892474ae - test::run_test_in_process::h2758deb0f2e54430
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:671:27
[INFO] [stdout]   32:     0x64d9892474ae - test::run_test::{{closure}}::habe5cd2564b18aaa
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:592:43
[INFO] [stdout]   33:     0x64d98920b054 - test::run_test::{{closure}}::h9a0a6928f1a15421
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:622:41
[INFO] [stdout]   34:     0x64d98920b054 - std::sys::backtrace::__rust_begin_short_backtrace::hd68b5332434a22ca
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:152:18
[INFO] [stdout]   35:     0x64d98920e9fa - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h264ddcc3098eacae
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   36:     0x64d98920e9fa - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h9fa39489749d6f3c
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   37:     0x64d98920e9fa - std::panicking::catch_unwind::do_call::hb9a1944b9f85100f
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:589:40
[INFO] [stdout]   38:     0x64d98920e9fa - std::panicking::catch_unwind::h0c6f100786c0dad8
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:552:19
[INFO] [stdout]   39:     0x64d98920e9fa - std::panic::catch_unwind::hf6084e2723385823
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x64d98920e9fa - std::thread::Builder::spawn_unchecked_::{{closure}}::hf0af58ce658143ad
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   41:     0x64d98920e9fa - core::ops::function::FnOnce::call_once{{vtable.shim}}::h88a14f9b2e79f9de
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x64d98927e4f7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf31256ba38644b65
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   43:     0x64d98927e4f7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h100ad77f3448041b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   44:     0x64d98927e4f7 - std::sys::pal::unix::thread::Thread::new::thread_start::h1a22ded422ce395b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/pal/unix/thread.rs:97:17
[INFO] [stdout]   45:     0x7c6967da0aa4 - <unknown>
[INFO] [stdout]   46:     0x7c6967e2da34 - clone
[INFO] [stdout]   47:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     pixel::tests::test_rgb_ycbcr
[INFO] [stdout]     utils::tests::check_bits_write
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 3 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin pngpeg`
[INFO] running `Command { std: "docker" "inspect" "cb6fbe9fa09a360f2aa72211ae4cc805437ee5117b5a11046fef919dad537e92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb6fbe9fa09a360f2aa72211ae4cc805437ee5117b5a11046fef919dad537e92", kill_on_drop: false }`
[INFO] [stdout] cb6fbe9fa09a360f2aa72211ae4cc805437ee5117b5a11046fef919dad537e92
