Add comment to -j 1 for Foundation test execution

ahoppen · ahoppen · commit 8ef0e2ae92fe · 2025-08-13T13:08:00.000+02:00
diff --git a/utils/build.ps1 b/utils/build.ps1
@@ -2854,7 +2854,7 @@ function Test-Foundation {
       -Bin "$BinaryCache\$($BuildPlatform.Triple)\FoundationTests" `
       -Platform $BuildPlatform `
       -Configuration $FoundationTestConfiguration `
-      -j 1
+      -j 1 # Running parallel causes a non-deterministic crash in CI only, see https://github.com/swiftlang/swift/issues/83606
   }
 }
 

Original file line number	Diff line number	Diff line change
`@@ -2854,7 +2854,7 @@ function Test-Foundation {`
`2854`	`2854`	-Bin "$BinaryCache\$($BuildPlatform.Triple)\FoundationTests" `
`2855`	`2855`	-Platform $BuildPlatform `
`2856`	`2856`	-Configuration $FoundationTestConfiguration `
`2857`		`- -j 1`
	`2857`	`+ -j 1 # Running parallel causes a non-deterministic crash in CI only, see https://github.com/swiftlang/swift/issues/83606`
`2858`	`2858`	`}`
`2859`	`2859`	`}`
`2860`	`2860`