Fix lints.

Signed-off-by: Jason Volk <jason@zemos.net>

src/database/tests.rs

@@ -335,7 +335,7 @@ fn ser_array() {
 }
 
 #[test]
-#[ignore]
+#[ignore = "does not work yet. TODO! Fixme!"]
 fn de_array() {
 	let a: u64 = 123_456;
 	let b: u64 = 987_654;
@@ -367,7 +367,7 @@ fn de_array() {
 }
 
 #[test]
-#[ignore]
+#[ignore = "does not work yet. TODO! Fixme!"]
 fn de_complex() {
 	type Key<'a> = (&'a UserId, ArrayVec<u64, 2>, &'a RoomId);