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-rw-r--r--src/liballoc/Cargo.toml1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/liballoc/Cargo.toml b/src/liballoc/Cargo.toml
index 861c7cecb88..f6d6c1de8f5 100644
--- a/src/liballoc/Cargo.toml
+++ b/src/liballoc/Cargo.toml
@@ -4,6 +4,7 @@ name = "alloc"
 version = "0.0.0"
 autotests = false
 autobenches = false
+edition = "2018"
 
 [lib]
 name = "alloc"