[INFO] fetching crate pixelsorting 0.1.1...
[INFO] testing pixelsorting-0.1.1 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate pixelsorting 0.1.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate pixelsorting 0.1.1
[INFO] finished tweaking crates.io crate pixelsorting 0.1.1
[INFO] tweaked toml for crates.io crate pixelsorting 0.1.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pixelsorting 0.1.1 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] crate crates.io crate pixelsorting 0.1.1 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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] ca45d5ca56a6416ed4aa90398a49bd9faf7ffb679900747afe6fb1b1dc13d1ea
[INFO] running `Command { std: "docker" "start" "-a" "ca45d5ca56a6416ed4aa90398a49bd9faf7ffb679900747afe6fb1b1dc13d1ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca45d5ca56a6416ed4aa90398a49bd9faf7ffb679900747afe6fb1b1dc13d1ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca45d5ca56a6416ed4aa90398a49bd9faf7ffb679900747afe6fb1b1dc13d1ea", kill_on_drop: false }`
[INFO] [stdout] ca45d5ca56a6416ed4aa90398a49bd9faf7ffb679900747afe6fb1b1dc13d1ea
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[INFO] [stdout] ac5bfb22f9b3d4d23b397b7df36c132a75c5e1e5a8cad7d379351dd0b7375dd9
[INFO] running `Command { std: "docker" "start" "-a" "ac5bfb22f9b3d4d23b397b7df36c132a75c5e1e5a8cad7d379351dd0b7375dd9", kill_on_drop: false }`
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[INFO] [stderr]    Compiling num-derive v0.4.2
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[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling ravif v0.11.11
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[INFO] [stderr]    Compiling pixelsorting v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `GenericImageView` and `GenericImage`
[INFO] [stdout]  --> src/server.rs:6:27
[INFO] [stdout]   |
[INFO] [stdout] 6 | use image::{DynamicImage, GenericImage, GenericImageView, ImageFormat};
[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: `edge_detection`
[INFO] [stdout]  --> src/server.rs:9:22
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::sorting::{edge_detection, sortable_regions_image, vertical_sort};
[INFO] [stdout]   |                      ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `sorted_image` is never read
[INFO] [stdout]   --> src/server.rs:72:54
[INFO] [stdout]    |
[INFO] [stdout] 72 |                 let mut sorted_image: DynamicImage = Default::default();
[INFO] [stdout]    |                                                      ^^^^^^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 77 |                     sorted_image = vertical_sort(src_image, parsed.luma_threshold, parsed.edge_detection);
[INFO] [stdout]    |                     ------------ `sorted_image` is overwritten here before the previous value is read
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/sorting.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut luma_img = img.to_luma8();
[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: `luma_img`
[INFO] [stdout]  --> src/sorting.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut luma_img = img.to_luma8();
[INFO] [stdout]   |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_luma_img`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/sorting.rs:110:38
[INFO] [stdout]     |
[INFO] [stdout] 110 | pub(crate) fn sortable_regions_image(mut img: &DynamicImage, luma_threshold: u8, do_edge_detection: bool) -> DynamicImage {
[INFO] [stdout]     |                                      ----^^^
[INFO] [stdout]     |                                      |
[INFO] [stdout]     |                                      help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 34.67s
[INFO] running `Command { std: "docker" "inspect" "ac5bfb22f9b3d4d23b397b7df36c132a75c5e1e5a8cad7d379351dd0b7375dd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac5bfb22f9b3d4d23b397b7df36c132a75c5e1e5a8cad7d379351dd0b7375dd9", kill_on_drop: false }`
[INFO] [stdout] ac5bfb22f9b3d4d23b397b7df36c132a75c5e1e5a8cad7d379351dd0b7375dd9
[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] f829add0ef5ab9cd3a795ed92dc3b842914d1fa8c2fb4ddf7a2bf51ca5a1b4cd
[INFO] running `Command { std: "docker" "start" "-a" "f829add0ef5ab9cd3a795ed92dc3b842914d1fa8c2fb4ddf7a2bf51ca5a1b4cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling pixelsorting v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `GenericImageView` and `GenericImage`
[INFO] [stdout]  --> src/server.rs:6:27
[INFO] [stdout]   |
[INFO] [stdout] 6 | use image::{DynamicImage, GenericImage, GenericImageView, ImageFormat};
[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: `edge_detection`
[INFO] [stdout]  --> src/server.rs:9:22
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::sorting::{edge_detection, sortable_regions_image, vertical_sort};
[INFO] [stdout]   |                      ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `sorted_image` is never read
[INFO] [stdout]   --> src/server.rs:72:54
[INFO] [stdout]    |
[INFO] [stdout] 72 |                 let mut sorted_image: DynamicImage = Default::default();
[INFO] [stdout]    |                                                      ^^^^^^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 77 |                     sorted_image = vertical_sort(src_image, parsed.luma_threshold, parsed.edge_detection);
[INFO] [stdout]    |                     ------------ `sorted_image` is overwritten here before the previous value is read
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/sorting.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut luma_img = img.to_luma8();
[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: `luma_img`
[INFO] [stdout]  --> src/sorting.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut luma_img = img.to_luma8();
[INFO] [stdout]   |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_luma_img`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/sorting.rs:110:38
[INFO] [stdout]     |
[INFO] [stdout] 110 | pub(crate) fn sortable_regions_image(mut img: &DynamicImage, luma_threshold: u8, do_edge_detection: bool) -> DynamicImage {
[INFO] [stdout]     |                                      ----^^^
[INFO] [stdout]     |                                      |
[INFO] [stdout]     |                                      help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "f829add0ef5ab9cd3a795ed92dc3b842914d1fa8c2fb4ddf7a2bf51ca5a1b4cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f829add0ef5ab9cd3a795ed92dc3b842914d1fa8c2fb4ddf7a2bf51ca5a1b4cd", kill_on_drop: false }`
[INFO] [stdout] f829add0ef5ab9cd3a795ed92dc3b842914d1fa8c2fb4ddf7a2bf51ca5a1b4cd
[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] d925ec6af9003440bb9a0adea5c0a18c95fee20b525fb288ad264aa380cf9827
[INFO] running `Command { std: "docker" "start" "-a" "d925ec6af9003440bb9a0adea5c0a18c95fee20b525fb288ad264aa380cf9827", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `GenericImageView` and `GenericImage`
[INFO] [stderr]  --> src/server.rs:6:27
[INFO] [stderr]   |
[INFO] [stderr] 6 | use image::{DynamicImage, GenericImage, GenericImageView, ImageFormat};
[INFO] [stderr]   |                           ^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `edge_detection`
[INFO] [stderr]  --> src/server.rs:9:22
[INFO] [stderr]   |
[INFO] [stderr] 9 | use crate::sorting::{edge_detection, sortable_regions_image, vertical_sort};
[INFO] [stderr]   |                      ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `sorted_image` is never read
[INFO] [stderr]   --> src/server.rs:72:54
[INFO] [stderr]    |
[INFO] [stderr] 72 |                 let mut sorted_image: DynamicImage = Default::default();
[INFO] [stderr]    |                                                      ^^^^^^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stderr] ...
[INFO] [stderr] 77 |                     sorted_image = vertical_sort(src_image, parsed.luma_threshold, parsed.edge_detection);
[INFO] [stderr]    |                     ------------ `sorted_image` is overwritten here before the previous value is read
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/sorting.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 |     let mut luma_img = img.to_luma8();
[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: `luma_img`
[INFO] [stderr]  --> src/sorting.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 |     let mut luma_img = img.to_luma8();
[INFO] [stderr]   |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_luma_img`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/sorting.rs:110:38
[INFO] [stderr]     |
[INFO] [stderr] 110 | pub(crate) fn sortable_regions_image(mut img: &DynamicImage, luma_threshold: u8, do_edge_detection: bool) -> DynamicImage {
[INFO] [stderr]     |                                      ----^^^
[INFO] [stderr]     |                                      |
[INFO] [stderr]     |                                      help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: `pixelsorting` (bin "pixelsorting" test) generated 6 warnings (run `cargo fix --bin "pixelsorting" -p pixelsorting --tests` to apply 5 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/pixelsorting-0173c01b27c3ca40)
[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" "d925ec6af9003440bb9a0adea5c0a18c95fee20b525fb288ad264aa380cf9827", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d925ec6af9003440bb9a0adea5c0a18c95fee20b525fb288ad264aa380cf9827", kill_on_drop: false }`
[INFO] [stdout] d925ec6af9003440bb9a0adea5c0a18c95fee20b525fb288ad264aa380cf9827
