The Intelhex output format was broken in version v0.13.7 apparently by enhancement #206. Intelhex output is stripping leading and trailing binary zeros (0x00) from each 32 byte Intelhex output record. The stripped data is valid program code. Issue is show below.

Example code:

#ruledef
{
nop => 0x00
ldi sp, {value: i8} => 0x08 @ value
}
nop
ldi sp, 0xff
nop

Annotated Output:

outp | addr | data (base 16)

0:0 | 0 | 00 ; nop
1:0 | 1 | 08 ff ; ldi sp, 0xff
3:0 | 3 | 00 ; nop

Intelhex Output:

:0200010008FFF6
:00000001FF

In the Intelhex output above is starting at address 0x1. The NOP's at addresses 0x0 and 0x3 are removed from the binary.