document that meta_fuss tests are flaky, and to ignore.

Author: Eh2406

tests/testsuite/support/resolver.rs

@@ -460,12 +460,16 @@ pub fn registry_strategy(
 
 /// This test is to test the generator to ensure
 /// that it makes registries with large dependency trees
+///
+/// This is a form of randomized testing, if you are unlucky it can fail.
+/// A failure on it's own is not a big dael. If you did not change the
+/// `registry_strategy` then feel free to retry without concern.
 #[test]
 fn meta_test_deep_trees_from_strategy() {
     let mut dis = [0; 21];
 
     let strategy = registry_strategy(50, 20, 60);
-    for _ in 0..64 {
+    for _ in 0..128 {
         let PrettyPrintRegistry(input) = strategy
             .new_tree(&mut TestRunner::default())
             .unwrap()
@@ -488,19 +492,23 @@ fn meta_test_deep_trees_from_strategy() {
     }
 
     panic!(
-        "In 640 tries we did not see a wide enough distribution of dependency trees! dis: {:?}",
+        "In 1280 tries we did not see a wide enough distribution of dependency trees! dis: {:?}",
         dis
     );
 }
 
 /// This test is to test the generator to ensure
 /// that it makes registries that include multiple versions of the same library
+///
+/// This is a form of randomized testing, if you are unlucky it can fail.
+/// A failure on its own is not a big deal. If you did not change the
+/// `registry_strategy` then feel free to retry without concern.
 #[test]
 fn meta_test_multiple_versions_strategy() {
     let mut dis = [0; 10];
 
     let strategy = registry_strategy(50, 20, 60);
-    for _ in 0..64 {
+    for _ in 0..128 {
         let PrettyPrintRegistry(input) = strategy
             .new_tree(&mut TestRunner::default())
             .unwrap()
@@ -524,7 +532,7 @@ fn meta_test_multiple_versions_strategy() {
         }
     }
     panic!(
-        "In 640 tries we did not see a wide enough distribution of multiple versions of the same library! dis: {:?}",
+        "In 1280 tries we did not see a wide enough distribution of multiple versions of the same library! dis: {:?}",
         dis
     );
 }