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-rw-r--r--library/rustc-std-workspace-alloc/Cargo.toml2
1 files changed, 1 insertions, 1 deletions
diff --git a/library/rustc-std-workspace-alloc/Cargo.toml b/library/rustc-std-workspace-alloc/Cargo.toml
index 1ea421834a7..049ca3e46b5 100644
--- a/library/rustc-std-workspace-alloc/Cargo.toml
+++ b/library/rustc-std-workspace-alloc/Cargo.toml
@@ -5,7 +5,7 @@ license = 'MIT OR Apache-2.0'
 description = """
 Hack for the compiler's own build system
 """
-edition = "2018"
+edition = "2021"
 
 [lib]
 path = "lib.rs"