pkcs8: pem pulls alloc feature

Signed-off-by: Arthur Gautier <[email protected]>

Author: baloo

pkcs8/src/lib.rs

@@ -70,7 +70,7 @@
 //! [PKCS#5v2 Password Based Encryption Scheme 2 (RFC 8018)]: https://tools.ietf.org/html/rfc8018#section-6.2
 //! [scrypt]: https://en.wikipedia.org/wiki/Scrypt
 
-#[cfg(feature = "pem")]
+#[cfg(feature = "alloc")]
 extern crate alloc;
 #[cfg(feature = "std")]
 extern crate std;