Upgrade to rustfmt 0.8.3.

src/filetest/subtest.rs

@@ -76,12 +76,14 @@ impl<'a> filecheck::VariableMap for Context<'a> {
 /// Run filecheck on `text`, using directives extracted from `context`.
 pub fn run_filecheck(text: &str, context: &Context) -> Result<()> {
     let checker = build_filechecker(context)?;
-    if checker.check(&text, context)
+    if checker
+           .check(&text, context)
            .map_err(|e| format!("filecheck: {}", e))? {
         Ok(())
     } else {
         // Filecheck mismatch. Emit an explanation as output.
-        let (_, explain) = checker.explain(&text, context)
+        let (_, explain) = checker
+            .explain(&text, context)
             .map_err(|e| format!("explain: {}", e))?;
         Err(format!("filecheck failed:\n{}{}", checker, explain))
     }
@@ -92,11 +94,13 @@ pub fn build_filechecker(context: &Context) -> Result<Checker> {
     let mut builder = CheckerBuilder::new();
     // Preamble comments apply to all functions.
     for comment in context.preamble_comments {
-        builder.directive(comment.text)
+        builder
+            .directive(comment.text)
             .map_err(|e| format!("filecheck: {}", e))?;
     }
     for comment in &context.details.comments {
-        builder.directive(comment.text)
+        builder
+            .directive(comment.text)
             .map_err(|e| format!("filecheck: {}", e))?;
     }
     let checker = builder.finish();