Fix additional issue

Noticed this when adding the new test case, if not filtering targets then expressions that could never evaluate to true were causing graph inclusion

src/builder.rs

@@ -1279,6 +1279,20 @@ impl Builder {
                                 if !matched {
                                     return None;
                                 }
+                            } else if cfg.starts_with("cfg(") {
+                                // This is _basically_ a tortured way to evaluate `cfg(any())`, which is always false but
+                                // is used by eg. serde -> serde_derive. If not filtering targets this would mean that
+                                // serde_derive and all of its dependencies would be pulled into the graph, even if the
+                                // only edge was the cfg(any()).
+                                if let Ok(expr) = cfg_expr::Expression::parse(cfg) {
+                                    // We can't just do an eval and always return true, as that then would cause any
+                                    // not() expressions to evaluate to false
+                                    if expr.predicates().count() == 0 {
+                                        if !expr.eval(|_| true) {
+                                            return None;
+                                        }
+                                    }
+                                }
                             }
 
                             Some(cfg)

tests/snapshots/features__ignores_features_for_ignored_kinds.snap

@@ -834,7 +834,6 @@ digraph {
     128 -> 32 [ label = "" ]
     128 -> 102 [ label = "" ]
     131 -> 132 [ label = "" ]
-    132 -> 253 [ label = " 'cfg(any())'" ]
     132 -> 253 [ label = "" ]
     133 -> 180 [ label = "" ]
     133 -> 182 [ label = "" ]

tests/snapshots/features__includes_target_specific_feature_dependencies.snap

@@ -4,52 +4,12 @@ expression: dotgraph
 ---
 digraph {
     0 [ label = "crate features-2 0.1.0 path+file:///krates/tests/features-2" ]
-    1 [ label = "crate proc-macro2 1.0.79" ]
-    2 [ label = "crate quote 1.0.36" ]
-    3 [ label = "crate serde 1.0.197" ]
-    4 [ label = "crate serde_derive 1.0.197" ]
-    5 [ label = "crate smallvec 1.13.2" ]
-    6 [ label = "crate syn 2.0.58" ]
-    7 [ label = "crate unicode-ident 1.0.12" ]
-    8 [ label = "feature serde" ]
-    9 [ label = "feature proc-macro" ]
-    10 [ label = "feature default" ]
-    11 [ label = "feature proc-macro" ]
-    12 [ label = "feature clone-impls" ]
-    13 [ label = "feature derive" ]
-    14 [ label = "feature parsing" ]
-    15 [ label = "feature printing" ]
-    16 [ label = "feature proc-macro" ]
-    0 -> 5 [ label = "" ]
-    0 -> 8 [ label = " 'cfg(target_os = \"android\")'" ]
-    1 -> 7 [ label = "" ]
+    1 [ label = "crate serde 1.0.197" ]
+    2 [ label = "crate smallvec 1.13.2" ]
+    3 [ label = "feature serde" ]
+    0 -> 2 [ label = "" ]
+    0 -> 3 [ label = " 'cfg(target_os = \"android\")'" ]
     2 -> 1 [ label = "" ]
-    2 -> 9 [ label = "" ]
-    3 -> 10 [ label = " 'cfg(any())'" ]
-    4 -> 9 [ label = "" ]
-    4 -> 11 [ label = "" ]
-    4 -> 12 [ label = "" ]
-    4 -> 13 [ label = "" ]
-    4 -> 14 [ label = "" ]
-    4 -> 15 [ label = "" ]
-    4 -> 16 [ label = "" ]
-    5 -> 3 [ label = "" ]
-    6 -> 1 [ label = "" ]
-    6 -> 9 [ label = "" ]
-    6 -> 2 [ label = "" ]
-    6 -> 11 [ label = "" ]
-    6 -> 7 [ label = "" ]
-    9 -> 1 [ label = "" ]
-    11 -> 2 [ label = "" ]
-    11 -> 9 [ label = "" ]
-    10 -> 4 [ label = "" ]
-    8 -> 5 [ label = "" ]
-    8 -> 3 [ label = "" ]
-    16 -> 6 [ label = "" ]
-    16 -> 9 [ label = "" ]
-    15 -> 6 [ label = "" ]
-    15 -> 2 [ label = "" ]
-    14 -> 6 [ label = "" ]
-    13 -> 6 [ label = "" ]
-    12 -> 6 [ label = "" ]
+    3 -> 2 [ label = "" ]
+    3 -> 1 [ label = "" ]
 }