Fix for 16 and 32 bit systems.

Author: tnull

lightning/src/routing/router.rs

@@ -1528,7 +1528,7 @@ where L::Target: Logger {
 			let mut path_nonce = [0u8; 8];
 			path_nonce.copy_from_slice(&cur_node_id.as_slice()[..8]);
 			let mut prng = ChaCha20::new(random_seed_bytes, &path_nonce);
-			let mut random_path_bytes = [0u8; 8];
+			let mut random_path_bytes = [0u8; ::core::mem::size_of::<usize>()];
 
 			// Pick a random path length in [1 .. 3]
 			prng.process_in_place(&mut random_path_bytes);