error[E0599]: no function or associated item named `try_from_object` found for struct `CString` in the current scope
    --> vm/src/stdlib/os.rs:1700:54
     |
1700 |                     let cstring = std::ffi::CString::try_from_object(vm, obj)?;
     |                                                      ^^^^^^^^^^^^^^^ function or associated item not found in `CString`
     |
     = help: items from traits can only be used if the trait is implemented and in scope
note: `pyobject::TryFromObject` defines an item `try_from_object`, perhaps you need to implement it``