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-rw-r--r--compiler/rustc_mir_transform/src/coverage/test_macros/Cargo.toml2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/rustc_mir_transform/src/coverage/test_macros/Cargo.toml b/compiler/rustc_mir_transform/src/coverage/test_macros/Cargo.toml
index cc93fd482b5..f5e8b65656a 100644
--- a/compiler/rustc_mir_transform/src/coverage/test_macros/Cargo.toml
+++ b/compiler/rustc_mir_transform/src/coverage/test_macros/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "coverage_test_macros"
 version = "0.0.0"
-edition = "2018"
+edition = "2021"
 
 [lib]
 proc-macro = true