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Index: hex/Cargo.toml
===================================================================
--- hex.orig/Cargo.toml
+++ hex/Cargo.toml
@@ -29,6 +29,8 @@ rustdoc-args = ["--cfg", "docsrs"]
[[bench]]
name = "hex"
harness = false
+required-features = ["alloc"]
+
[dependencies.serde]
version = "1.0"
optional = true
Index: hex/src/lib.rs
===================================================================
--- hex.orig/src/lib.rs
+++ hex/src/lib.rs
@@ -388,6 +388,9 @@ mod test {
#[cfg(feature = "alloc")]
use alloc::string::ToString;
use pretty_assertions::assert_eq;
+
+ #[cfg(feature = "alloc")]
+ use alloc::vec;
#[test]
#[cfg(feature = "alloc")]
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