diff --git a/src/libboard_artiq/src/lib.rs b/src/libboard_artiq/src/lib.rs
index 79d0243..aa09aa3 100644
--- a/src/libboard_artiq/src/lib.rs
+++ b/src/libboard_artiq/src/lib.rs
@@ -1,3 +1,5 @@
+#![no_std]
+
 // has csr; taken from runtime main
 #[path = "../../../build/pl.rs"]
 pub mod pl;
diff --git a/src/libio/lib.rs b/src/libio/lib.rs
index b3e8e6b..0e4f145 100644
--- a/src/libio/lib.rs
+++ b/src/libio/lib.rs
@@ -21,6 +21,7 @@ pub use proto::{ProtoRead, ProtoWrite};
 #[cfg(all(feature = "byteorder", feature = "alloc"))]
 pub use proto::ReadStringError;
 
+#[derive(Debug, Clone, PartialEq)]
 pub enum Error<T> {
     UnexpectedEnd,
     Other(T)