> cargo build
    Updating crates.io index
   Compiling libc v0.2.81
   ...
   Compiling pnet_packet v0.21.0
error[E0599]: no method named `to_primitive_values` found for struct `MacAddr` in the current scope
   --> target/debug/build/pnet_packet-8156a982b0731b69/out/ethernet.rs:442:24
    |
442 |         let vals = val.to_primitive_values();
    |                        ^^^^^^^^^^^^^^^^^^^ method not found in `MacAddr`

error[E0599]: no method named `to_primitive_values` found for struct `MacAddr` in the current scope
   --> target/debug/build/pnet_packet-8156a982b0731b69/out/ethernet.rs:499:24
    |
499 |         let vals = val.to_primitive_values();
    |                        ^^^^^^^^^^^^^^^^^^^ method not found in `MacAddr`

error[E0599]: no method named `to_primitive_values` found for struct `MacAddr` in the current scope
   --> target/debug/build/pnet_packet-8156a982b0731b69/out/arp.rs:776:24
    |
776 |         let vals = val.to_primitive_values();
    |                        ^^^^^^^^^^^^^^^^^^^ method not found in `MacAddr`

error[E0599]: no method named `to_primitive_values` found for struct `MacAddr` in the current scope
   --> target/debug/build/pnet_packet-8156a982b0731b69/out/arp.rs:874:24
    |
874 |         let vals = val.to_primitive_values();
    |                        ^^^^^^^^^^^^^^^^^^^ method not found in `MacAddr`

error: aborting due to 4 previous errors

For more information about this error, try `rustc --explain E0599`.
error: could not compile `pnet_packet`