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-rw-r--r--compiler/rustc_span/Cargo.toml1
1 files changed, 1 insertions, 0 deletions
diff --git a/compiler/rustc_span/Cargo.toml b/compiler/rustc_span/Cargo.toml
index ae81d95e2..a7c7575f3 100644
--- a/compiler/rustc_span/Cargo.toml
+++ b/compiler/rustc_span/Cargo.toml
@@ -18,3 +18,4 @@ tracing = "0.1"
sha1 = "0.10.0"
sha2 = "0.10.1"
md5 = { package = "md-5", version = "0.10.0" }
+indexmap = { version = "1.9.3" }