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-rw-r--r--compiler/rustc/Cargo.toml2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/rustc/Cargo.toml b/compiler/rustc/Cargo.toml
index 37f90bf3c10..277cf0f51d3 100644
--- a/compiler/rustc/Cargo.toml
+++ b/compiler/rustc/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "rustc-main"
 version = "0.0.0"
-edition = '2018'
+edition = "2021"
 
 [dependencies]
 rustc_driver = { path = "../rustc_driver" }