cargo test in the crate root fails without this

It worked in the individual crates before this, not sure why.
I bet this is due to ark_std::io being either std::io or the fork of it.

Awful lot of stupid shit in Rust is due to std::io not being core::io,
which afaik happens because of the missguided effort to add backtraces
everywhere.

dleq_vrf/src/tests.rs

@@ -54,15 +54,15 @@ fn master() {
 
     let mut buf = Vec::new();
     sig_pedersen.serialize_compressed(&mut buf).unwrap();
-    let sig_pedersen = Signature::deserialize_compressed(buf.as_ref()).unwrap();
+    let sig_pedersen = Signature::deserialize_compressed::<&[u8]>(buf.as_slice()).unwrap();
 
     buf.clear();
     sig_thin.serialize_compressed(&mut buf).unwrap();
-    let sig_thin = Signature::deserialize_compressed(buf.as_ref()).unwrap();
+    let sig_thin = Signature::deserialize_compressed::<&[u8]>(buf.as_slice()).unwrap();
 
     buf.clear();
     sk.as_publickey().serialize_compressed(&mut buf).unwrap();
-    let pk = crate::PublicKey::deserialize_compressed(buf.as_ref()).unwrap();
+    let pk = crate::PublicKey::deserialize_compressed::<&[u8]>(buf.as_slice()).unwrap();
     assert!( *sig_pedersen.as_key_commitment() == flavor.compute_blinded_publickey(&pk,&secret_blinding) );
 
     let t = Transcript::new_labeled(b"AD1");

nugget_bls/src/tests.rs

@@ -16,7 +16,7 @@ fn single() {
     let mut buf = Vec::new();
     let pk0 = sk.create_nugget_public();
     pk0.serialize_compressed(&mut buf).unwrap();
-    let pk = AggregationKey::deserialize_compressed(buf.as_ref()).unwrap();
+    let pk = AggregationKey::deserialize_compressed::<&[u8]>(buf.as_slice()).unwrap();
     assert_eq!(pk0,pk);
     pk.validate_nugget_public().unwrap();
     assert_eq!(sk.to_g1_publickey(), pk.to_g1_publickey());
@@ -29,7 +29,7 @@ fn single() {
 
     buf.clear();
     signature.serialize_compressed(&mut buf).unwrap();
-    let signature = Signature::deserialize_compressed(buf.as_ref()).unwrap();
+    let signature = Signature::deserialize_compressed::<&[u8]>(buf.as_slice()).unwrap();
 
     let t = Transcript::new_labeled(b"AD1");
     let msg = Message { domain, message };
@@ -56,3 +56,4 @@ fn aggregation() {
     assert_eq!(g1pks0, g1pks);
     agg.verify_by_pks(input,g1pks.iter()).unwrap();
 }
+