1 files changed, 4 insertions, 1 deletions
diff --git a/compiler/rustc_mir/src/transform/coverage/mod.rs b/compiler/rustc_mir/src/transform/coverage/mod.rs
index c55349239b0..de37a67a174 100644
--- a/compiler/rustc_mir/src/transform/coverage/mod.rs
+++ b/compiler/rustc_mir/src/transform/coverage/mod.rs
@@ -5,6 +5,9 @@ mod debug;
 mod graph;
 mod spans;
 
+#[cfg(test)]
+mod tests;
+
 use counters::CoverageCounters;
 use graph::{BasicCoverageBlock, BasicCoverageBlockData, CoverageGraph};
 use spans::{CoverageSpan, CoverageSpans};
@@ -31,7 +34,7 @@ use rustc_span::{CharPos, Pos, SourceFile, Span, Symbol};
 
 /// A simple error message wrapper for `coverage::Error`s.
 #[derive(Debug)]
-pub(crate) struct Error {
+pub(self) struct Error {
     message: String,
 }