rustdoc: Optimize IdMap

[rust.git] / src / librustdoc / Cargo.toml

diff --git a/src/librustdoc/Cargo.toml b/src/librustdoc/Cargo.toml
index cc5c583bea8e25d81dda1b114b6e96a04dffeedf..21efd040663b8aa9e848aa6ff3456f1fa864fa89 100644 (file)
--- a/src/librustdoc/Cargo.toml
+++ b/src/librustdoc/Cargo.toml
@@ -22,6 +22,7 @@ regex = "1"
 rustdoc-json-types = { path = "../rustdoc-json-types" }
 tracing = "0.1"
 tracing-tree = "0.2.0"
+once_cell = "1.10.0"
 
 [dependencies.tracing-subscriber]
 version = "0.3.3"