[INFO] fetching crate rust-cv 0.1.0...
[INFO] testing rust-cv-0.1.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rust-cv 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate rust-cv 0.1.0
[INFO] finished tweaking crates.io crate rust-cv 0.1.0
[INFO] tweaked toml for crates.io crate rust-cv 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust-cv 0.1.0 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 8 packages to latest compatible versions
[INFO] [stderr]       Adding itertools v0.10.5 (available: v0.14.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] feebf9f5d6818d1f0e41e181f5fe8fcf821dc88d72bc60885372d3cd14c77597
[INFO] running `Command { std: "docker" "start" "-a" "feebf9f5d6818d1f0e41e181f5fe8fcf821dc88d72bc60885372d3cd14c77597", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "feebf9f5d6818d1f0e41e181f5fe8fcf821dc88d72bc60885372d3cd14c77597", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "feebf9f5d6818d1f0e41e181f5fe8fcf821dc88d72bc60885372d3cd14c77597", kill_on_drop: false }`
[INFO] [stdout] feebf9f5d6818d1f0e41e181f5fe8fcf821dc88d72bc60885372d3cd14c77597
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e6020fd3255fcf8e32fa4a3d9979c33cdf00646abccd4c237b2f8c75a696ee3
[INFO] running `Command { std: "docker" "start" "-a" "3e6020fd3255fcf8e32fa4a3d9979c33cdf00646abccd4c237b2f8c75a696ee3", kill_on_drop: false }`
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling rayon v1.12.0
[INFO] [stderr]    Compiling jpeg-decoder v0.3.2
[INFO] [stderr]    Compiling rust-cv v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Display` and `Formatter`
[INFO] [stdout]  --> src/image/image.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fmt::{Display, Formatter};
[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: `std::ops::Add`
[INFO] [stdout]  --> src/image/image.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::ops::Add;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/image/image.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let mut out = ImBuffer {
[INFO] [stdout]    |             ----^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file_name`
[INFO] [stdout]   --> src/image/image.rs:38:21
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn from_png(file_name: &str) {
[INFO] [stdout]    |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ImBuffer` is never constructed
[INFO] [stdout]  --> src/image/image.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct ImBuffer {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `from`, `from_png`, `prelude`, and `to_ppm` are never used
[INFO] [stdout]   --> src/image/image.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl ImBuffer {
[INFO] [stdout]    | ------------- associated items in this implementation
[INFO] [stdout] 15 |     pub fn new(buffer: Vec<Pixel>, dims: Dims) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn from(file_name: &str) -> ImBuffer{
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn from_png(file_name: &str) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     fn prelude(&self) -> String {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn to_ppm(&self, file_name: String) -> std::io::Result<()>{
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Pixel` is never constructed
[INFO] [stdout]  --> src/image/pixel.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Pixel{
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/image/pixel.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | impl Pixel {
[INFO] [stdout]   | ---------- associated function in this implementation
[INFO] [stdout] 9 |     pub fn new(in_slice: &[u8]) -> Self {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Dims` is never constructed
[INFO] [stdout]  --> src/image/dims.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Dims {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `width`, `height`, `max`, `set_width`, `set_height`, and `new` are never used
[INFO] [stdout]   --> src/image/dims.rs:9:12
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl Dims {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout]  9 |     pub fn width(&self) -> i32 {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 12 |     pub fn height(&self) -> i32 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub fn max(&self) -> i32 {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub fn set_width(&mut self, width: i32) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub fn set_height(&mut self, height: i32) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub fn new(width: i32, height: i32, max: i32) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.84s
[INFO] running `Command { std: "docker" "inspect" "3e6020fd3255fcf8e32fa4a3d9979c33cdf00646abccd4c237b2f8c75a696ee3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e6020fd3255fcf8e32fa4a3d9979c33cdf00646abccd4c237b2f8c75a696ee3", kill_on_drop: false }`
[INFO] [stdout] 3e6020fd3255fcf8e32fa4a3d9979c33cdf00646abccd4c237b2f8c75a696ee3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b44fcfb36834ba71072f5c952ee6e5ece06efe04a76181a9d05e24171349ed0b
[INFO] running `Command { std: "docker" "start" "-a" "b44fcfb36834ba71072f5c952ee6e5ece06efe04a76181a9d05e24171349ed0b", kill_on_drop: false }`
[INFO] [stdout] warning: unused imports: `Display` and `Formatter`
[INFO] [stdout]  --> src/image/image.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fmt::{Display, Formatter};
[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: `std::ops::Add`
[INFO] [stdout]  --> src/image/image.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::ops::Add;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/image/image.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let mut out = ImBuffer {
[INFO] [stdout]    |             ----^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file_name`
[INFO] [stdout]   --> src/image/image.rs:38:21
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn from_png(file_name: &str) {
[INFO] [stdout]    |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ImBuffer` is never constructed
[INFO] [stdout]  --> src/image/image.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct ImBuffer {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `from`, `from_png`, `prelude`, and `to_ppm` are never used
[INFO] [stdout]   --> src/image/image.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl ImBuffer {
[INFO] [stdout]    | ------------- associated items in this implementation
[INFO] [stdout] 15 |     pub fn new(buffer: Vec<Pixel>, dims: Dims) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn from(file_name: &str) -> ImBuffer{
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn from_png(file_name: &str) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     fn prelude(&self) -> String {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn to_ppm(&self, file_name: String) -> std::io::Result<()>{
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Pixel` is never constructed
[INFO] [stdout]  --> src/image/pixel.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Pixel{
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/image/pixel.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | impl Pixel {
[INFO] [stdout]   | ---------- associated function in this implementation
[INFO] [stdout] 9 |     pub fn new(in_slice: &[u8]) -> Self {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Dims` is never constructed
[INFO] [stdout]  --> src/image/dims.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Dims {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `width`, `height`, `max`, `set_width`, `set_height`, and `new` are never used
[INFO] [stdout]   --> src/image/dims.rs:9:12
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl Dims {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout]  9 |     pub fn width(&self) -> i32 {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 12 |     pub fn height(&self) -> i32 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub fn max(&self) -> i32 {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub fn set_width(&mut self, width: i32) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub fn set_height(&mut self, height: i32) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub fn new(width: i32, height: i32, max: i32) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rust-cv v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Display` and `Formatter`
[INFO] [stdout]  --> src/image/image.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fmt::{Display, Formatter};
[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: `std::ops::Add`
[INFO] [stdout]  --> src/image/image.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::ops::Add;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/image/image.rs:76:9
[INFO] [stdout]    |
[INFO] [stdout] 76 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/image/image.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let mut out = ImBuffer {
[INFO] [stdout]    |             ----^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file_name`
[INFO] [stdout]   --> src/image/image.rs:38:21
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn from_png(file_name: &str) {
[INFO] [stdout]    |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ImBuffer` is never constructed
[INFO] [stdout]  --> src/image/image.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct ImBuffer {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `from`, `from_png`, `prelude`, and `to_ppm` are never used
[INFO] [stdout]   --> src/image/image.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl ImBuffer {
[INFO] [stdout]    | ------------- associated items in this implementation
[INFO] [stdout] 15 |     pub fn new(buffer: Vec<Pixel>, dims: Dims) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn from(file_name: &str) -> ImBuffer{
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn from_png(file_name: &str) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     fn prelude(&self) -> String {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn to_ppm(&self, file_name: String) -> std::io::Result<()>{
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Pixel` is never constructed
[INFO] [stdout]  --> src/image/pixel.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Pixel{
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/image/pixel.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | impl Pixel {
[INFO] [stdout]   | ---------- associated function in this implementation
[INFO] [stdout] 9 |     pub fn new(in_slice: &[u8]) -> Self {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Dims` is never constructed
[INFO] [stdout]  --> src/image/dims.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Dims {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `width`, `height`, `max`, `set_width`, `set_height`, and `new` are never used
[INFO] [stdout]   --> src/image/dims.rs:9:12
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl Dims {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout]  9 |     pub fn width(&self) -> i32 {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 12 |     pub fn height(&self) -> i32 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub fn max(&self) -> i32 {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub fn set_width(&mut self, width: i32) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub fn set_height(&mut self, height: i32) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub fn new(width: i32, height: i32, max: i32) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "b44fcfb36834ba71072f5c952ee6e5ece06efe04a76181a9d05e24171349ed0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b44fcfb36834ba71072f5c952ee6e5ece06efe04a76181a9d05e24171349ed0b", kill_on_drop: false }`
[INFO] [stdout] b44fcfb36834ba71072f5c952ee6e5ece06efe04a76181a9d05e24171349ed0b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 37fb9f3c65730e32f19e85aa67a1f17171ca97b07c1164de84be1fd25d771497
[INFO] running `Command { std: "docker" "start" "-a" "37fb9f3c65730e32f19e85aa67a1f17171ca97b07c1164de84be1fd25d771497", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `Display` and `Formatter`
[INFO] [stderr]  --> src/image/image.rs:3:16
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::fmt::{Display, Formatter};
[INFO] [stderr]   |                ^^^^^^^  ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ops::Add`
[INFO] [stderr]  --> src/image/image.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::ops::Add;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/image/image.rs:16:13
[INFO] [stderr]    |
[INFO] [stderr] 16 |         let mut out = ImBuffer {
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `file_name`
[INFO] [stderr]   --> src/image/image.rs:38:21
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn from_png(file_name: &str) {
[INFO] [stderr]    |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_name`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `ImBuffer` is never constructed
[INFO] [stderr]  --> src/image/image.rs:9:12
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub struct ImBuffer {
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `from`, `from_png`, `prelude`, and `to_ppm` are never used
[INFO] [stderr]   --> src/image/image.rs:15:12
[INFO] [stderr]    |
[INFO] [stderr] 14 | impl ImBuffer {
[INFO] [stderr]    | ------------- associated items in this implementation
[INFO] [stderr] 15 |     pub fn new(buffer: Vec<Pixel>, dims: Dims) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 22 |     pub fn from(file_name: &str) -> ImBuffer{
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 38 |     pub fn from_png(file_name: &str) {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 41 |     fn prelude(&self) -> String {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 46 |     pub fn to_ppm(&self, file_name: String) -> std::io::Result<()>{
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Pixel` is never constructed
[INFO] [stderr]  --> src/image/pixel.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct Pixel{
[INFO] [stderr]   |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]  --> src/image/pixel.rs:9:12
[INFO] [stderr]   |
[INFO] [stderr] 8 | impl Pixel {
[INFO] [stderr]   | ---------- associated function in this implementation
[INFO] [stderr] 9 |     pub fn new(in_slice: &[u8]) -> Self {
[INFO] [stderr]   |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Dims` is never constructed
[INFO] [stderr]  --> src/image/dims.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct Dims {
[INFO] [stderr]   |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `width`, `height`, `max`, `set_width`, `set_height`, and `new` are never used
[INFO] [stderr]   --> src/image/dims.rs:9:12
[INFO] [stderr]    |
[INFO] [stderr]  8 | impl Dims {
[INFO] [stderr]    | --------- associated items in this implementation
[INFO] [stderr]  9 |     pub fn width(&self) -> i32 {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 12 |     pub fn height(&self) -> i32 {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 15 |     pub fn max(&self) -> i32 {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 18 |     pub fn set_width(&mut self, width: i32) {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 21 |     pub fn set_height(&mut self, height: i32) {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 24 |     pub fn new(width: i32, height: i32, max: i32) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-cv` (lib) generated 10 warnings (run `cargo fix --lib -p rust-cv` to apply 4 suggestions)
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/image/image.rs:76:9
[INFO] [stderr]    |
[INFO] [stderr] 76 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-cv` (lib test) generated 11 warnings (10 duplicates) (run `cargo fix --lib -p rust-cv --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust_cv-7c9f107103a2c74a)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rust_cv
[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" "37fb9f3c65730e32f19e85aa67a1f17171ca97b07c1164de84be1fd25d771497", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37fb9f3c65730e32f19e85aa67a1f17171ca97b07c1164de84be1fd25d771497", kill_on_drop: false }`
[INFO] [stdout] 37fb9f3c65730e32f19e85aa67a1f17171ca97b07c1164de84be1fd25d771497
