devel/py-spy: fix build on ARM / POWERHEADmain

error[E0308]: mismatched types
   --> /wrkdirs/usr/ports/devel/py-spy/work/py_spy-0.4.1/cargo-crates/proc-maps-0.4.0/src/freebsd_maps/ptrace.rs:188:52
    |
188 |     let result = unsafe { ptrace(PT_VM_ENTRY, pid, &vm_entry as *const _ as *mut i8, 0) };
    |                           ------                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `*mut u8`, found `*mut i8`
    |                           |
    |                           arguments to this function are incorrect
    |
    = note: expected raw pointer `*mut u8`
               found raw pointer `*mut i8`
note: function defined here
   --> /wrkdirs/usr/ports/devel/py-spy/work/py_spy-0.4.1/cargo-crates/proc-maps-0.4.0/src/freebsd_maps/ptrace.rs:150:8
    |
150 |     fn ptrace(request: c_int, pid: Pid, vm_entry: caddr_t, data: c_int) -> c_int;
    |        ^^^^^^                           --------

For more information about this error, try `rustc --explain E0308`.
error: could not compile `proc-maps` (lib) due to 1 previous error

0 files changed, 0 insertions, 0 deletions