error: Unexpected meta-item format `attribute cannot contain `__deku_` these are internal variables. Please use the `deku::` instead.`
  --> tests/test_compile/cases/internal_variables.rs:88:19
   |
88 |     #[deku(cond = "__deku_bit_offset == *field_a as usize")]
   |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error[E0277]: the trait bound `W: Seek` is not satisfied
  --> tests/test_compile/cases/internal_variables.rs:75:66
   |
75 | fn dummy_writer<W: std::io::Write>(_offset: usize, _writer: &mut deku::writer::Writer<W>) -> Result<(), DekuError> {
   |                                                                  ^^^^^^^^^^^^^^^^^^^^^^^ the trait `Seek` is not implemented for `W`
   |
note: required by a bound in `Writer`
  --> src/writer.rs
   |
   | pub struct Writer<W: Write + Seek> {
   |                              ^^^^ required by this bound in `Writer`
help: consider further restricting this bound
   |
75 | fn dummy_writer<W: std::io::Write + std::io::Seek>(_offset: usize, _writer: &mut deku::writer::Writer<W>) -> Result<(), DekuError> {
   |                                   +++++++++++++++

warning: unused variable: `offset`
  --> tests/test_compile/cases/internal_variables.rs:53:5
   |
53 |     offset: usize,
   |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_offset`
   |
   = note: `#[warn(unused_variables)]` on by default