[INFO] cloning repository https://github.com/szymski/dumb_gfx_format
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[INFO] [stdout] 837c2915ce8677618841c1cabe5260387e02f6ab
[INFO] testing szymski/dumb_gfx_format against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fszymski%2Fdumb_gfx_format" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/szymski/dumb_gfx_format
[INFO] finished tweaking git repo https://github.com/szymski/dumb_gfx_format
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[INFO] crate git repo https://github.com/szymski/dumb_gfx_format 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]    Compiling dumb_gfx_format v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/dct.rs:11:37
[INFO] [stdout]    |
[INFO] [stdout] 11 |         return sum * T::inv(T::sqrt((n as T)));
[INFO] [stdout]    |                                     ^      ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 11 -         return sum * T::inv(T::sqrt((n as T)));
[INFO] [stdout] 11 +         return sum * T::inv(T::sqrt(n as T ));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::Borrow`
[INFO] [stdout]  --> src/decoder.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::borrow::Borrow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ToPixelBuffer`
[INFO] [stdout]   --> src/main.rs:10:27
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::pixel_buffer::{ToPixelBuffer};
[INFO] [stdout]    |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Rgb`
[INFO] [stdout]   --> src/main.rs:12:26
[INFO] [stdout]    |
[INFO] [stdout] 12 | use image::{ImageResult, Rgb, RgbImage};
[INFO] [stdout]    |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/decoder.rs:125:9
[INFO] [stdout]     |
[INFO] [stdout] 125 |         _ => {
[INFO] [stdout]     |         ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/decoder.rs:125:9
[INFO] [stdout]     |
[INFO] [stdout]  79 |         ImageCompressionMode::None => buffer.clone(),
[INFO] [stdout]     |         -------------------------- matches some of the same values
[INFO] [stdout]  80 |         ImageCompressionMode::Dct => {
[INFO] [stdout]     |         ------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 125 |         _ => {
[INFO] [stdout]     |         ^ collectively making this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mode`
[INFO] [stdout]   --> src/dgf.rs:16:62
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new(version: DgfVersion, width: u16, height: u16, mode: ImageMode) -> Dgf {
[INFO] [stdout]    |                                                              ^^^^ help: if this is intentional, prefix it with an underscore: `_mode`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/encoder.rs:120:9
[INFO] [stdout]     |
[INFO] [stdout] 120 |         _ => {
[INFO] [stdout]     |         ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/encoder.rs:120:9
[INFO] [stdout]     |
[INFO] [stdout]  81 |         ImageCompressionMode::None => image.as_raw().clone(),
[INFO] [stdout]     |         -------------------------- matches some of the same values
[INFO] [stdout]  82 |         ImageCompressionMode::Dct => {
[INFO] [stdout]     |         ------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 120 |         _ => {
[INFO] [stdout]     |         ^ collectively making this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `g`
[INFO] [stdout]   --> src/encoder.rs:98:33
[INFO] [stdout]    |
[INFO] [stdout] 98 |                         let [r, g, b] = image.get_pixel(x, y).0;
[INFO] [stdout]    |                                 ^ help: if this is intentional, prefix it with an underscore: `_g`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/encoder.rs:98:36
[INFO] [stdout]    |
[INFO] [stdout] 98 |                         let [r, g, b] = image.get_pixel(x, y).0;
[INFO] [stdout]    |                                    ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]   --> src/dgf.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub struct Dgf {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 12 |     pub data: Vec<u8>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `reserved` is never read
[INFO] [stdout]   --> src/dgf.rs:78:13
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub struct DgfImageProperties {
[INFO] [stdout]    |                ------------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 78 |         pub reserved: [u8; 32],
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DgfImageProperties` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Grayscale1` is never constructed
[INFO] [stdout]   --> src/dgf.rs:84:9
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub enum ImageMode {
[INFO] [stdout]    |              --------- variant in this enum
[INFO] [stdout] 84 |         Grayscale1 = 0x00,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ImageMode` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `reserved` is never read
[INFO] [stdout]    --> src/dgf.rs:117:21
[INFO] [stdout]     |
[INFO] [stdout] 114 |             pub struct DctProperties {
[INFO] [stdout]     |                        ------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 117 |                 pub reserved: [u8; 2],
[INFO] [stdout]     |                     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `DctProperties` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `reserved` is never read
[INFO] [stdout]    --> src/dgf.rs:125:21
[INFO] [stdout]     |
[INFO] [stdout] 123 |             pub struct PostCompression {
[INFO] [stdout]     |                        --------------- field in this struct
[INFO] [stdout] 124 |                 pub mode: PostCompressionMode,
[INFO] [stdout] 125 |                 pub reserved: [u8; 3],
[INFO] [stdout]     |                     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `PostCompression` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Rle` is never constructed
[INFO] [stdout]    --> src/dgf.rs:133:17
[INFO] [stdout]     |
[INFO] [stdout] 130 |             pub enum PostCompressionMode {
[INFO] [stdout]     |                      ------------------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 133 |                 Rle = 1,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `PostCompressionMode` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PixelBuffer` is never constructed
[INFO] [stdout]  --> src/pixel_buffer.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct PixelBuffer {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ToPixelBuffer` is never used
[INFO] [stdout]   --> src/pixel_buffer.rs:12:11
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub trait ToPixelBuffer {
[INFO] [stdout]    |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pixels` is never used
[INFO] [stdout]   --> src/util.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Chunk {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn pixels(&self) -> u32 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 28.17s
[INFO] running `Command { std: "docker" "inspect" "d4044fca925b514cc9c32ad11c8b86b98d7cce390c58219762cfd542ff5cd43d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4044fca925b514cc9c32ad11c8b86b98d7cce390c58219762cfd542ff5cd43d", kill_on_drop: false }`
[INFO] [stdout] d4044fca925b514cc9c32ad11c8b86b98d7cce390c58219762cfd542ff5cd43d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5738cb00f01d6e1d34f9376a4f7d8a932d3587d87f93d700382cb66a979da3a1
[INFO] running `Command { std: "docker" "start" "-a" "5738cb00f01d6e1d34f9376a4f7d8a932d3587d87f93d700382cb66a979da3a1", kill_on_drop: false }`
[INFO] [stderr]    Compiling dumb_gfx_format v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/dct.rs:11:37
[INFO] [stdout]    |
[INFO] [stdout] 11 |         return sum * T::inv(T::sqrt((n as T)));
[INFO] [stdout]    |                                     ^      ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 11 -         return sum * T::inv(T::sqrt((n as T)));
[INFO] [stdout] 11 +         return sum * T::inv(T::sqrt(n as T ));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::Borrow`
[INFO] [stdout]  --> src/decoder.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::borrow::Borrow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ToPixelBuffer`
[INFO] [stdout]   --> src/main.rs:10:27
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::pixel_buffer::{ToPixelBuffer};
[INFO] [stdout]    |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Rgb`
[INFO] [stdout]   --> src/main.rs:12:26
[INFO] [stdout]    |
[INFO] [stdout] 12 | use image::{ImageResult, Rgb, RgbImage};
[INFO] [stdout]    |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/decoder.rs:125:9
[INFO] [stdout]     |
[INFO] [stdout] 125 |         _ => {
[INFO] [stdout]     |         ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/decoder.rs:125:9
[INFO] [stdout]     |
[INFO] [stdout]  79 |         ImageCompressionMode::None => buffer.clone(),
[INFO] [stdout]     |         -------------------------- matches some of the same values
[INFO] [stdout]  80 |         ImageCompressionMode::Dct => {
[INFO] [stdout]     |         ------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 125 |         _ => {
[INFO] [stdout]     |         ^ collectively making this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mode`
[INFO] [stdout]   --> src/dgf.rs:16:62
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new(version: DgfVersion, width: u16, height: u16, mode: ImageMode) -> Dgf {
[INFO] [stdout]    |                                                              ^^^^ help: if this is intentional, prefix it with an underscore: `_mode`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/encoder.rs:120:9
[INFO] [stdout]     |
[INFO] [stdout] 120 |         _ => {
[INFO] [stdout]     |         ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/encoder.rs:120:9
[INFO] [stdout]     |
[INFO] [stdout]  81 |         ImageCompressionMode::None => image.as_raw().clone(),
[INFO] [stdout]     |         -------------------------- matches some of the same values
[INFO] [stdout]  82 |         ImageCompressionMode::Dct => {
[INFO] [stdout]     |         ------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 120 |         _ => {
[INFO] [stdout]     |         ^ collectively making this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `g`
[INFO] [stdout]   --> src/encoder.rs:98:33
[INFO] [stdout]    |
[INFO] [stdout] 98 |                         let [r, g, b] = image.get_pixel(x, y).0;
[INFO] [stdout]    |                                 ^ help: if this is intentional, prefix it with an underscore: `_g`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/encoder.rs:98:36
[INFO] [stdout]    |
[INFO] [stdout] 98 |                         let [r, g, b] = image.get_pixel(x, y).0;
[INFO] [stdout]    |                                    ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]   --> src/dgf.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub struct Dgf {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 12 |     pub data: Vec<u8>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `reserved` is never read
[INFO] [stdout]   --> src/dgf.rs:78:13
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub struct DgfImageProperties {
[INFO] [stdout]    |                ------------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 78 |         pub reserved: [u8; 32],
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DgfImageProperties` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Grayscale1` is never constructed
[INFO] [stdout]   --> src/dgf.rs:84:9
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub enum ImageMode {
[INFO] [stdout]    |              --------- variant in this enum
[INFO] [stdout] 84 |         Grayscale1 = 0x00,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ImageMode` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `reserved` is never read
[INFO] [stdout]    --> src/dgf.rs:117:21
[INFO] [stdout]     |
[INFO] [stdout] 114 |             pub struct DctProperties {
[INFO] [stdout]     |                        ------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 117 |                 pub reserved: [u8; 2],
[INFO] [stdout]     |                     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `DctProperties` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `reserved` is never read
[INFO] [stdout]    --> src/dgf.rs:125:21
[INFO] [stdout]     |
[INFO] [stdout] 123 |             pub struct PostCompression {
[INFO] [stdout]     |                        --------------- field in this struct
[INFO] [stdout] 124 |                 pub mode: PostCompressionMode,
[INFO] [stdout] 125 |                 pub reserved: [u8; 3],
[INFO] [stdout]     |                     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `PostCompression` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Rle` is never constructed
[INFO] [stdout]    --> src/dgf.rs:133:17
[INFO] [stdout]     |
[INFO] [stdout] 130 |             pub enum PostCompressionMode {
[INFO] [stdout]     |                      ------------------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 133 |                 Rle = 1,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `PostCompressionMode` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PixelBuffer` is never constructed
[INFO] [stdout]  --> src/pixel_buffer.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct PixelBuffer {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ToPixelBuffer` is never used
[INFO] [stdout]   --> src/pixel_buffer.rs:12:11
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub trait ToPixelBuffer {
[INFO] [stdout]    |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pixels` is never used
[INFO] [stdout]   --> src/util.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Chunk {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn pixels(&self) -> u32 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "5738cb00f01d6e1d34f9376a4f7d8a932d3587d87f93d700382cb66a979da3a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5738cb00f01d6e1d34f9376a4f7d8a932d3587d87f93d700382cb66a979da3a1", kill_on_drop: false }`
[INFO] [stdout] 5738cb00f01d6e1d34f9376a4f7d8a932d3587d87f93d700382cb66a979da3a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 12dea4f17212057c55fe3e0afe10a2ff265b1745431f3b525b28dce308e2ce3c
[INFO] running `Command { std: "docker" "start" "-a" "12dea4f17212057c55fe3e0afe10a2ff265b1745431f3b525b28dce308e2ce3c", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/dct.rs:11:37
[INFO] [stderr]    |
[INFO] [stderr] 11 |         return sum * T::inv(T::sqrt((n as T)));
[INFO] [stderr]    |                                     ^      ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 11 -         return sum * T::inv(T::sqrt((n as T)));
[INFO] [stderr] 11 +         return sum * T::inv(T::sqrt(n as T ));
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::Borrow`
[INFO] [stderr]  --> src/decoder.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::borrow::Borrow;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ToPixelBuffer`
[INFO] [stderr]   --> src/main.rs:10:27
[INFO] [stderr]    |
[INFO] [stderr] 10 | use crate::pixel_buffer::{ToPixelBuffer};
[INFO] [stderr]    |                           ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Rgb`
[INFO] [stderr]   --> src/main.rs:12:26
[INFO] [stderr]    |
[INFO] [stderr] 12 | use image::{ImageResult, Rgb, RgbImage};
[INFO] [stderr]    |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/decoder.rs:125:9
[INFO] [stderr]     |
[INFO] [stderr] 125 |         _ => {
[INFO] [stderr]     |         ^ no value can reach this
[INFO] [stderr]     |
[INFO] [stderr] note: multiple earlier patterns match some of the same values
[INFO] [stderr]    --> src/decoder.rs:125:9
[INFO] [stderr]     |
[INFO] [stderr]  79 |         ImageCompressionMode::None => buffer.clone(),
[INFO] [stderr]     |         -------------------------- matches some of the same values
[INFO] [stderr]  80 |         ImageCompressionMode::Dct => {
[INFO] [stderr]     |         ------------------------- matches some of the same values
[INFO] [stderr] ...
[INFO] [stderr] 125 |         _ => {
[INFO] [stderr]     |         ^ collectively making this unreachable
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mode`
[INFO] [stderr]   --> src/dgf.rs:16:62
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn new(version: DgfVersion, width: u16, height: u16, mode: ImageMode) -> Dgf {
[INFO] [stderr]    |                                                              ^^^^ help: if this is intentional, prefix it with an underscore: `_mode`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/encoder.rs:120:9
[INFO] [stderr]     |
[INFO] [stderr] 120 |         _ => {
[INFO] [stderr]     |         ^ no value can reach this
[INFO] [stderr]     |
[INFO] [stderr] note: multiple earlier patterns match some of the same values
[INFO] [stderr]    --> src/encoder.rs:120:9
[INFO] [stderr]     |
[INFO] [stderr]  81 |         ImageCompressionMode::None => image.as_raw().clone(),
[INFO] [stderr]     |         -------------------------- matches some of the same values
[INFO] [stderr]  82 |         ImageCompressionMode::Dct => {
[INFO] [stderr]     |         ------------------------- matches some of the same values
[INFO] [stderr] ...
[INFO] [stderr] 120 |         _ => {
[INFO] [stderr]     |         ^ collectively making this unreachable
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `g`
[INFO] [stderr]   --> src/encoder.rs:98:33
[INFO] [stderr]    |
[INFO] [stderr] 98 |                         let [r, g, b] = image.get_pixel(x, y).0;
[INFO] [stderr]    |                                 ^ help: if this is intentional, prefix it with an underscore: `_g`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]   --> src/encoder.rs:98:36
[INFO] [stderr]    |
[INFO] [stderr] 98 |                         let [r, g, b] = image.get_pixel(x, y).0;
[INFO] [stderr]    |                                    ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: field `data` is never read
[INFO] [stderr]   --> src/dgf.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr]  8 | pub struct Dgf {
[INFO] [stderr]    |            --- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 12 |     pub data: Vec<u8>,
[INFO] [stderr]    |         ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `reserved` is never read
[INFO] [stderr]   --> src/dgf.rs:78:13
[INFO] [stderr]    |
[INFO] [stderr] 74 |     pub struct DgfImageProperties {
[INFO] [stderr]    |                ------------------ field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 78 |         pub reserved: [u8; 32],
[INFO] [stderr]    |             ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `DgfImageProperties` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Grayscale1` is never constructed
[INFO] [stderr]   --> src/dgf.rs:84:9
[INFO] [stderr]    |
[INFO] [stderr] 83 |     pub enum ImageMode {
[INFO] [stderr]    |              --------- variant in this enum
[INFO] [stderr] 84 |         Grayscale1 = 0x00,
[INFO] [stderr]    |         ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `ImageMode` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `reserved` is never read
[INFO] [stderr]    --> src/dgf.rs:117:21
[INFO] [stderr]     |
[INFO] [stderr] 114 |             pub struct DctProperties {
[INFO] [stderr]     |                        ------------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 117 |                 pub reserved: [u8; 2],
[INFO] [stderr]     |                     ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `DctProperties` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `reserved` is never read
[INFO] [stderr]    --> src/dgf.rs:125:21
[INFO] [stderr]     |
[INFO] [stderr] 123 |             pub struct PostCompression {
[INFO] [stderr]     |                        --------------- field in this struct
[INFO] [stderr] 124 |                 pub mode: PostCompressionMode,
[INFO] [stderr] 125 |                 pub reserved: [u8; 3],
[INFO] [stderr]     |                     ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `PostCompression` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Rle` is never constructed
[INFO] [stderr]    --> src/dgf.rs:133:17
[INFO] [stderr]     |
[INFO] [stderr] 130 |             pub enum PostCompressionMode {
[INFO] [stderr]     |                      ------------------- variant in this enum
[INFO] [stderr] ...
[INFO] [stderr] 133 |                 Rle = 1,
[INFO] [stderr]     |                 ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `PostCompressionMode` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: struct `PixelBuffer` is never constructed
[INFO] [stderr]  --> src/pixel_buffer.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct PixelBuffer {
[INFO] [stderr]   |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `ToPixelBuffer` is never used
[INFO] [stderr]   --> src/pixel_buffer.rs:12:11
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub trait ToPixelBuffer {
[INFO] [stderr]    |           ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `pixels` is never used
[INFO] [stderr]   --> src/util.rs:27:12
[INFO] [stderr]    |
[INFO] [stderr] 10 | impl Chunk {
[INFO] [stderr]    | ---------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 27 |     pub fn pixels(&self) -> u32 {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `dumb_gfx_format` (bin "dumb_gfx_format" test) generated 18 warnings (run `cargo fix --bin "dumb_gfx_format" -p dumb_gfx_format --tests` to apply 7 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/dumb_gfx_format-41c59cdf8776c872)
[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" "12dea4f17212057c55fe3e0afe10a2ff265b1745431f3b525b28dce308e2ce3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12dea4f17212057c55fe3e0afe10a2ff265b1745431f3b525b28dce308e2ce3c", kill_on_drop: false }`
[INFO] [stdout] 12dea4f17212057c55fe3e0afe10a2ff265b1745431f3b525b28dce308e2ce3c
