[INFO] cloning repository https://github.com/nfrasser/pyoxipng
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nfrasser/pyoxipng" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnfrasser%2Fpyoxipng", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnfrasser%2Fpyoxipng'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 357ea12453f352685acaf1b7a9c4573866b5bbf6
[INFO] checking nfrasser/pyoxipng against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnfrasser%2Fpyoxipng" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/nfrasser/pyoxipng
[INFO] finished tweaking git repo https://github.com/nfrasser/pyoxipng
[INFO] tweaked toml for git repo https://github.com/nfrasser/pyoxipng written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/nfrasser/pyoxipng on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/nfrasser/pyoxipng 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7223e28464dd2db1d2a8f7bf96307fa7094462d4472c1a70367cba577cbf4b2b
[INFO] running `Command { std: "docker" "start" "-a" "7223e28464dd2db1d2a8f7bf96307fa7094462d4472c1a70367cba577cbf4b2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7223e28464dd2db1d2a8f7bf96307fa7094462d4472c1a70367cba577cbf4b2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7223e28464dd2db1d2a8f7bf96307fa7094462d4472c1a70367cba577cbf4b2b", kill_on_drop: false }`
[INFO] [stdout] 7223e28464dd2db1d2a8f7bf96307fa7094462d4472c1a70367cba577cbf4b2b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dunmustuse_in_always_ok" "-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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5fd9b183d4219039b5913510eb7895352b4bd6ad6d7f3ac9e13871168e5dc2ed
[INFO] running `Command { std: "docker" "start" "-a" "5fd9b183d4219039b5913510eb7895352b4bd6ad6d7f3ac9e13871168e5dc2ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling target-lexicon v0.13.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling rustix v1.0.8
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling rayon-core v1.13.0
[INFO] [stderr]     Checking colorchoice v1.0.4
[INFO] [stderr]     Checking linux-raw-sys v0.9.4
[INFO] [stderr]     Checking anstyle-query v1.1.4
[INFO] [stderr]     Checking bitflags v2.9.2
[INFO] [stderr]     Checking anstyle v1.0.11
[INFO] [stderr]     Checking anstyle-parse v0.2.7
[INFO] [stderr]    Compiling cc v1.2.33
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]     Checking clap_lex v0.7.5
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]     Checking wyz v0.5.1
[INFO] [stderr]     Checking env_filter v0.1.3
[INFO] [stderr]     Checking bytemuck v1.23.2
[INFO] [stderr]     Checking hashbrown v0.15.5
[INFO] [stderr]     Checking bumpalo v3.19.0
[INFO] [stderr]     Checking funty v2.0.0
[INFO] [stderr]     Checking anstream v0.6.20
[INFO] [stderr]     Checking cfg-if v1.0.3
[INFO] [stderr]     Checking simd-adler32 v0.3.7
[INFO] [stderr]     Checking rustc-hash v2.1.1
[INFO] [stderr]    Compiling indoc v2.0.6
[INFO] [stderr]     Checking rgb v0.8.52
[INFO] [stderr]    Compiling memoffset v0.9.1
[INFO] [stderr]     Checking unindent v0.2.4
[INFO] [stderr]     Checking env_logger v0.11.8
[INFO] [stderr]     Checking zopfli v0.8.2
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking crossbeam-channel v0.5.15
[INFO] [stderr]     Checking bitvec v1.0.1
[INFO] [stderr]    Compiling pyo3-build-config v0.25.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling libdeflate-sys v1.24.0
[INFO] [stderr]     Checking terminal_size v0.4.3
[INFO] [stderr]     Checking filetime v0.2.26
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking clap_builder v4.5.44
[INFO] [stderr]     Checking rayon v1.11.0
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling pyo3-ffi v0.25.1
[INFO] [stderr]    Compiling pyo3-macros-backend v0.25.1
[INFO] [stderr]    Compiling pyo3 v0.25.1
[INFO] [stderr]     Checking indexmap v2.10.0
[INFO] [stderr]     Checking clap v4.5.45
[INFO] [stderr]     Checking libdeflater v1.24.0
[INFO] [stderr]     Checking oxipng v9.1.5
[INFO] [stderr]    Compiling pyo3-macros v0.25.1
[INFO] [stderr]     Checking pyoxipng v9.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<raw::ColorType, Infallible>
[INFO] [stdout]   --> src/raw.rs:16:53
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn grayscale(transparent_shade: Option<u16>) -> Self {
[INFO] [stdout]    |                                                     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<raw::ColorType, Infallible>
[INFO] [stdout]   --> src/raw.rs:49:29
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn grayscale_alpha() -> Self {
[INFO] [stdout]    |                             ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<raw::ColorType, Infallible>
[INFO] [stdout]   --> src/raw.rs:54:18
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn rgba() -> Self {
[INFO] [stdout]    |                  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/raw.rs:119:33
[INFO] [stdout]     |
[INFO] [stdout] 119 |     fn create_optimized_png<'a>(&self, kwargs: Option<&Bound<'_, PyDict>>) -> PyResult<Cow<[u8]>> {
[INFO] [stdout]     |                                 ^^^^^ the lifetime is elided here                      ^^^^^^^^^ the same lifetime is hidden 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] 119 |     fn create_optimized_png<'a>(&self, kwargs: Option<&Bound<'_, PyDict>>) -> PyResult<Cow<'_, [u8]>> {
[INFO] [stdout]     |                                                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<types::StripChunks, Infallible>
[INFO] [stdout]    --> src/types.rs:141:18
[INFO] [stdout]     |
[INFO] [stdout] 141 |     fn none() -> Self {
[INFO] [stdout]     |                  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<types::StripChunks, Infallible>
[INFO] [stdout]    --> src/types.rs:151:18
[INFO] [stdout]     |
[INFO] [stdout] 151 |     fn safe() -> Self {
[INFO] [stdout]     |                  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<types::StripChunks, Infallible>
[INFO] [stdout]    --> src/types.rs:160:17
[INFO] [stdout]     |
[INFO] [stdout] 160 |     fn all() -> Self {
[INFO] [stdout]     |                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pyoxipng` (lib test) due to 7 previous errors; 1 warning emitted
[INFO] [stdout] error: this type will no longer be must used: Result<types::Deflaters, Infallible>
[INFO] [stdout]    --> src/types.rs:172:40
[INFO] [stdout]     |
[INFO] [stdout] 172 |     fn libdeflater(compression: u8) -> Self {
[INFO] [stdout]     |                                        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<raw::ColorType, Infallible>
[INFO] [stdout]   --> src/raw.rs:16:53
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn grayscale(transparent_shade: Option<u16>) -> Self {
[INFO] [stdout]    |                                                     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<raw::ColorType, Infallible>
[INFO] [stdout]   --> src/raw.rs:49:29
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn grayscale_alpha() -> Self {
[INFO] [stdout]    |                             ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<raw::ColorType, Infallible>
[INFO] [stdout]   --> src/raw.rs:54:18
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn rgba() -> Self {
[INFO] [stdout]    |                  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/raw.rs:119:33
[INFO] [stdout]     |
[INFO] [stdout] 119 |     fn create_optimized_png<'a>(&self, kwargs: Option<&Bound<'_, PyDict>>) -> PyResult<Cow<[u8]>> {
[INFO] [stdout]     |                                 ^^^^^ the lifetime is elided here                      ^^^^^^^^^ the same lifetime is hidden 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] 119 |     fn create_optimized_png<'a>(&self, kwargs: Option<&Bound<'_, PyDict>>) -> PyResult<Cow<'_, [u8]>> {
[INFO] [stdout]     |                                                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<types::StripChunks, Infallible>
[INFO] [stdout]    --> src/types.rs:141:18
[INFO] [stdout]     |
[INFO] [stdout] 141 |     fn none() -> Self {
[INFO] [stdout]     |                  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<types::StripChunks, Infallible>
[INFO] [stdout]    --> src/types.rs:151:18
[INFO] [stdout]     |
[INFO] [stdout] 151 |     fn safe() -> Self {
[INFO] [stdout]     |                  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<types::StripChunks, Infallible>
[INFO] [stdout]    --> src/types.rs:160:17
[INFO] [stdout]     |
[INFO] [stdout] 160 |     fn all() -> Self {
[INFO] [stdout]     |                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<types::Deflaters, Infallible>
[INFO] [stdout]    --> src/types.rs:172:40
[INFO] [stdout]     |
[INFO] [stdout] 172 |     fn libdeflater(compression: u8) -> Self {
[INFO] [stdout]     |                                        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pyoxipng` (lib) due to 7 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "5fd9b183d4219039b5913510eb7895352b4bd6ad6d7f3ac9e13871168e5dc2ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fd9b183d4219039b5913510eb7895352b4bd6ad6d7f3ac9e13871168e5dc2ed", kill_on_drop: false }`
[INFO] [stdout] 5fd9b183d4219039b5913510eb7895352b4bd6ad6d7f3ac9e13871168e5dc2ed
