[INFO] fetching crate img_hash 3.2.0...
[INFO] checking img_hash-3.2.0 against master#4eb62535fc12dd1a63fd43a4173e224e79313c4d for pr-158816
[INFO] extracting crate img_hash 3.2.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate img_hash 3.2.0
[INFO] finished tweaking crates.io crate img_hash 3.2.0
[INFO] tweaked toml for crates.io crate img_hash 3.2.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate img_hash 3.2.0 on toolchain 4eb62535fc12dd1a63fd43a4173e224e79313c4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate img_hash 3.2.0 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" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] ec52767571aa28cd1827ac7a27aedac19d146cf2d3ba9c3a789f57d1697c3dba
[INFO] running `Command { std: "docker" "start" "ec52767571aa28cd1827ac7a27aedac19d146cf2d3ba9c3a789f57d1697c3dba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec52767571aa28cd1827ac7a27aedac19d146cf2d3ba9c3a789f57d1697c3dba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ec52767571aa28cd1827ac7a27aedac19d146cf2d3ba9c3a789f57d1697c3dba" "/opt/rustwide/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec52767571aa28cd1827ac7a27aedac19d146cf2d3ba9c3a789f57d1697c3dba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ec52767571aa28cd1827ac7a27aedac19d146cf2d3ba9c3a789f57d1697c3dba" "/opt/rustwide/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stderr]    Compiling num-traits v0.2.14
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[INFO] [stderr]     Checking img_hash v3.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/alg/blockhash.rs:60:22
[INFO] [stdout]    |
[INFO] [stdout] 60 |     move |x, y, add| (blocks[(y as usize) * (width as usize) + (x as usize)] += add)
[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] 60 -     move |x, y, add| (blocks[(y as usize) * (width as usize) + (x as usize)] += add)
[INFO] [stdout] 60 +     move |x, y, add| blocks[(y as usize) * (width as usize) + (x as usize)] += add
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `image::DynamicImage::to_luma`: replaced by `to_luma8`
[INFO] [stdout]    --> src/traits.rs:191:56
[INFO] [stdout]     |
[INFO] [stdout] 191 |         self.as_luma8().map_or_else(|| Cow::Owned(self.to_luma()), Cow::Borrowed)
[INFO] [stdout]     |                                                        ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:336:21
[INFO] [stdout]     |
[INFO] [stdout] 336 |     fn to_grayscale(&self) -> Cow<GrayImage> {
[INFO] [stdout]     |                     ^^^^^     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 336 |     fn to_grayscale(&self) -> Cow<'_, GrayImage> {
[INFO] [stdout]     |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/traits.rs:125:21
[INFO] [stdout]     |
[INFO] [stdout] 125 |     fn to_grayscale(&self) -> Cow<GrayImage>;
[INFO] [stdout]     |                     ^^^^^     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 125 |     fn to_grayscale(&self) -> Cow<'_, GrayImage>;
[INFO] [stdout]     |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/traits.rs:154:21
[INFO] [stdout]     |
[INFO] [stdout] 154 |     fn to_grayscale(&self) -> Cow<GrayImage> {
[INFO] [stdout]     |                     ^^^^^     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 154 |     fn to_grayscale(&self) -> Cow<'_, GrayImage> {
[INFO] [stdout]     |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/traits.rs:190:21
[INFO] [stdout]     |
[INFO] [stdout] 190 |     fn to_grayscale(&self) -> Cow<GrayImage> {
[INFO] [stdout]     |                     ^^^^^     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 190 |     fn to_grayscale(&self) -> Cow<'_, GrayImage> {
[INFO] [stdout]     |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/traits.rs:170:5
[INFO] [stdout]     |
[INFO] [stdout] 170 |     default fn to_grayscale(&self) -> Cow<GrayImage> {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-07-05; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/traits.rs:174:5
[INFO] [stdout]     |
[INFO] [stdout] 174 |     default fn blur(&self, sigma: f32) -> Self::Buf { imageops::blur(self, sigma) }
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-07-05; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/traits.rs:176:5
[INFO] [stdout]     |
[INFO] [stdout] 176 |     default fn foreach_pixel8<F>(&self, mut foreach: F) where F: FnMut(u32, u32, &[u8]) {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-07-05; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.3.4
[INFO] [stdout] warning: use of deprecated struct `criterion::ParameterizedBenchmark`: Please use BenchmarkGroups instead.
[INFO] [stdout]   --> benches/byte_to_float.rs:15:37
[INFO] [stdout]    |
[INFO] [stdout] 15 | use criterion::{Bencher, Criterion, ParameterizedBenchmark, Throughput};
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `criterion::ParameterizedBenchmark`: Please use BenchmarkGroups instead.
[INFO] [stdout]   --> benches/byte_to_float.rs:22:17
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let bench = ParameterizedBenchmark::new(
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `criterion::Criterion::<M>::bench`: Please use BenchmarkGroups instead.
[INFO] [stdout]   --> benches/byte_to_float.rs:45:7
[INFO] [stdout]    |
[INFO] [stdout] 45 |     c.bench("byte to float conversion", bench);
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/alg/blockhash.rs:60:22
[INFO] [stdout]    |
[INFO] [stdout] 60 |     move |x, y, add| (blocks[(y as usize) * (width as usize) + (x as usize)] += add)
[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] 60 -     move |x, y, add| (blocks[(y as usize) * (width as usize) + (x as usize)] += add)
[INFO] [stdout] 60 +     move |x, y, add| blocks[(y as usize) * (width as usize) + (x as usize)] += add
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `image::DynamicImage::to_luma`: replaced by `to_luma8`
[INFO] [stdout]    --> src/traits.rs:191:56
[INFO] [stdout]     |
[INFO] [stdout] 191 |         self.as_luma8().map_or_else(|| Cow::Owned(self.to_luma()), Cow::Borrowed)
[INFO] [stdout]     |                                                        ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.66s
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:336:21
[INFO] [stdout]     |
[INFO] [stdout] 336 |     fn to_grayscale(&self) -> Cow<GrayImage> {
[INFO] [stdout]     |                     ^^^^^     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 336 |     fn to_grayscale(&self) -> Cow<'_, GrayImage> {
[INFO] [stdout]     |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.4
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/traits.rs:125:21
[INFO] [stdout]     |
[INFO] [stdout] 125 |     fn to_grayscale(&self) -> Cow<GrayImage>;
[INFO] [stdout]     |                     ^^^^^     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 125 |     fn to_grayscale(&self) -> Cow<'_, GrayImage>;
[INFO] [stdout]     |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/traits.rs:154:21
[INFO] [stdout]     |
[INFO] [stdout] 154 |     fn to_grayscale(&self) -> Cow<GrayImage> {
[INFO] [stdout]     |                     ^^^^^     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 154 |     fn to_grayscale(&self) -> Cow<'_, GrayImage> {
[INFO] [stdout]     |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/traits.rs:190:21
[INFO] [stdout]     |
[INFO] [stdout] 190 |     fn to_grayscale(&self) -> Cow<GrayImage> {
[INFO] [stdout]     |                     ^^^^^     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 190 |     fn to_grayscale(&self) -> Cow<'_, GrayImage> {
[INFO] [stdout]     |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/traits.rs:170:5
[INFO] [stdout]     |
[INFO] [stdout] 170 |     default fn to_grayscale(&self) -> Cow<GrayImage> {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-07-05; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/traits.rs:174:5
[INFO] [stdout]     |
[INFO] [stdout] 174 |     default fn blur(&self, sigma: f32) -> Self::Buf { imageops::blur(self, sigma) }
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-07-05; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/traits.rs:176:5
[INFO] [stdout]     |
[INFO] [stdout] 176 |     default fn foreach_pixel8<F>(&self, mut foreach: F) where F: FnMut(u32, u32, &[u8]) {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-07-05; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ec52767571aa28cd1827ac7a27aedac19d146cf2d3ba9c3a789f57d1697c3dba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec52767571aa28cd1827ac7a27aedac19d146cf2d3ba9c3a789f57d1697c3dba", kill_on_drop: false }`
[INFO] [stdout] ec52767571aa28cd1827ac7a27aedac19d146cf2d3ba9c3a789f57d1697c3dba
