Needs to format:

cd rust_psbt_lib && cargo fmt --check
Diff in /home/runner/work/bitcoinfuzz/bitcoinfuzz/modules/rustpsbt/rust_psbt_lib/src/lib.rs:69:
         Err(_) => std::ptr::null_mut(),
     }
 }
+
make[1]: *** [Makefile:33: check-format] Error 1

What's the relation between rust-bitcoin and rust-psbt? Just wondering if rust-psbt is used in rust-bitcoin.

They are very similar. I noticed that they use some types from rust-bitcoin, but the deserialize method and the struct PSBT are implemented in the rust-psbt crate. They plan to migrate the PSBT from the rust-bitcoin to rust-psbt.

rust-bitcoin/rust-bitcoin#5697

cc @tcharding

Btw, this is basically a copy and paste from the lib.rs from rust-bitcoin implementation for the psbt_parse harness. I plan to refactor the parse_psbt target in a follow-up pull request (PR) by adding all the fields that a PSBT can have.

rust-psbt code was pulled out of rust-bitcoin 0.32 a while back and then development stalled. It has now picked back up with the plan being to remove the psbt code out of rust-bitcoin 0.33 all together. I think fuzzing both bitcoin 0.32 and psbt would be super useful in case we make mistakes migrating the code. Thanks a bunch.