ci: run clippy on all crates

Author: magistau

.github/features.ua

@@ -1,20 +1,34 @@
 # Test combinations of features
 
-Command  ← {"cargo" "clippy" "--lib" "--no-default-features"}
-Features ← (
-  {"audio" "tls"}
-  ⊂⨬(
-    {"gif,image,terminal_image,webcam" "lsp,raw_mode"}
-  | {"audio_encode" "gif" "image" "terminal_image" "lsp" "native_sys" "raw_mode"}
-  ) ∈:□"all" &args
+Command     ← {"cargo" "clippy" "--no-default-features"}
+ClippyArgs  ← {"--deny=warnings"}
+AllowNotAll ← {"--allow=unused"}
+# Success ? Package Features UseAll
+Run ← (
+  ⊸(&p $"Checking package _")
+  ⊂Command {"--package" ∘}
+  ⊙(
+    ˜⧅⋅⋅1⇡2⊸⧻
+    ≡⌟{"--features" /$"_,_"▽}
+    ⍚(⊂□⨬$"features: _"⋅"no features"=₀⊸⧻°□⊸⊣)
+    ⍚˜⊂{⊂₃{"--"} ClippyArgs AllowNotAll}
+    ⊂⊙(˜▽{⊂{"all features" "--all-features" "--"} ClippyArgs})
+  )
+  ≡⌞(
+    ⊙◇°⊂
+    ⊙(&p $"Checking with _")
+    &runi ⊂
+  )
+  /×=₀
 )
-
-&p "Checking with no features"
-⍤⟜≍: 0 &runi Command
-
-↘1⋯⇡ⁿ:2⧻. Features
-≡(/$"_,_" ▽
-  &p $"Checking with features: _".
-  ⊂ Command ⊂ □"--features" □
-  ⍤⟜≍: 0 &runi
-)⊙¤
+/◇⊂{
+  ¤Run "uiua" (
+    {"audio" "tls" "binary"}
+    ⊂⨬(
+      {"gif,image,terminal_image,webcam" "lsp,raw_mode"}
+    | {"audio_encode" "gif" "image" "terminal_image" "lsp" "native_sys" "raw_mode"}
+    ) ˜∊□"all" &args
+  ) 1
+  ≡⌟₂◇Run {"site" "uiua-editor" "tests_ffi" "uiua_parser"} {} 0
+}
+⍤"One or more invocations failed" /×

Cargo.toml

@@ -165,6 +165,7 @@ system = ["libffi?/system"]
 
 [[bin]]
 name = "uiua"
+required-features = ["binary"]
 
 [workspace]
 members = ["site", "tests_ffi", "pad/editor", "parser"]

src/sys/mod.rs

@@ -1174,6 +1174,7 @@ pub(crate) fn run_sys_op(op: &SysOp, env: &mut Uiua) -> UiuaResult {
                 .change_directory(&path)
                 .map_err(|e| env.error(e))?;
         }
+        #[cfg_attr(not(feature="image"), expect(clippy::let_unit_value))]
         SysOp::WebcamCapture => {
             let index = env.pop(1)?.as_nat(env, "Webcam index must be an integer")?;
             let _image = (env.rt.backend)