ci: replace hand-maintained feature-soundness scripts with cargo-hack

[Madoshakalaka]

Description

98 combinations from the full powerset might be unrealistic for CI

that's why there's --exclude-features test,serde,not_browser_env. These features don't gate any code paths

This then results in 14 clippy invocations are identical to what the old scripts ran, but now auto-discovered by cargo hack, so when features are added/removed, CI adapts automatically

--keep-going added so all failures are reported at once

Fixes #2641

Checklist

• I have reviewed my own code

[github-actions]

Visit the preview URL for this PR (updated for commit fa72abd):

https://yew-rs-api--pr4013-feat-cargo-hack-feat-3dhwlmdc.web.app

_{(expires Tue, 10 Mar 2026 12:24:27 GMT)}

_{🔥 via Firebase Hosting GitHub Action 🌎}

[github-actions]

Benchmark - core

Yew Master

vnode           fastest       │ slowest       │ median        │ mean          │ samples │ iters
╰─ vnode_clone  2.463 ns      │ 3.755 ns      │ 2.469 ns      │ 2.596 ns      │ 100     │ 1000000000

Pull Request

vnode           fastest       │ slowest       │ median        │ mean          │ samples │ iters
╰─ vnode_clone  2.403 ns      │ 3.786 ns      │ 2.408 ns      │ 2.622 ns      │ 100     │ 1000000000

[github-actions]

Size Comparison

Details

examples	master (KB)	pull request (KB)	diff (KB)	diff (%)
async_clock	100.197	100.197	0	0.000%
boids	168.080	168.080	0	0.000%
communication_child_to_parent	93.472	93.472	0	0.000%
communication_grandchild_with_grandparent	105.248	105.248	0	0.000%
communication_grandparent_to_grandchild	101.609	101.609	0	0.000%
communication_parent_to_child	90.899	90.899	0	0.000%
contexts	105.151	105.151	0	0.000%
counter	86.282	86.282	0	0.000%
counter_functional	88.276	88.276	0	0.000%
dyn_create_destroy_apps	90.320	90.320	0	0.000%
file_upload	99.346	99.346	0	0.000%
function_delayed_input	94.374	94.374	0	0.000%
function_memory_game	172.943	172.943	0	0.000%
function_router	406.410	406.410	0	0.000%
function_todomvc	164.160	164.160	0	0.000%
futures	235.159	235.159	0	0.000%
game_of_life	104.718	104.718	0	0.000%
immutable	255.879	255.879	0	0.000%
inner_html	80.803	80.803	0	0.000%
js_callback	109.379	109.379	0	0.000%
keyed_list	179.728	179.728	0	0.000%
mount_point	84.146	84.146	0	0.000%
nested_list	113.059	113.059	0	0.000%
node_refs	91.526	91.526	0	0.000%
password_strength	1729.146	1729.146	0	0.000%
portals	93.034	93.034	0	0.000%
router	376.976	376.976	0	0.000%
suspense	113.464	113.464	0	0.000%
timer	88.634	88.634	0	0.000%
timer_functional	98.877	98.877	0	0.000%
todomvc	142.088	142.088	0	0.000%
two_apps	86.146	86.146	0	0.000%
web_worker_fib	136.239	136.239	0	0.000%
web_worker_prime	187.470	187.470	0	0.000%
webgl	83.224	83.224	0	0.000%

✅ None of the examples has changed their size significantly.

[github-actions]

Benchmark - SSR

Yew Master

Details

Benchmark	Round	Min (ms)	Max (ms)	Mean (ms)	Standard Deviation
Baseline	10	310.812	312.665	311.179	0.609
Hello World	10	477.253	528.043	487.382	15.365
Function Router	10	31290.800	31729.788	31595.056	132.253
Concurrent Task	10	1006.339	1007.738	1007.336	0.431
Many Providers	10	1105.172	1148.041	1130.459	12.725

Pull Request

Details

Benchmark	Round	Min (ms)	Max (ms)	Mean (ms)	Standard Deviation
Baseline	10	310.773	311.743	311.074	0.270
Hello World	10	474.132	496.249	477.979	6.620
Function Router	10	31728.901	32272.936	32016.641	194.021
Concurrent Task	10	1006.235	1008.120	1007.191	0.601
Many Providers	10	1094.008	1140.034	1110.591	15.460

[Madoshakalaka]

Full powerset of feature soundness tests finish in 3 minutes is amazing.