Index: head/Mk/Uses/cargo.mk
===================================================================
--- head/Mk/Uses/cargo.mk
+++ head/Mk/Uses/cargo.mk
@@ -184,6 +184,8 @@
 .include "${USESDIR}/ssl.mk"
 CARGO_ENV+=	OPENSSL_LIB_DIR=${OPENSSLLIB} \
 		OPENSSL_INCLUDE_DIR=${OPENSSLINC}
+# Silence bogus QA warning about needing USES=ssl
+QA_ENV+=	USESSSL=yes
 .endif
 
 .if ${CARGO_CRATES:Mpkg-config-[0-9]*}