Barby / Semacode segfaults randomly

[AndrewRayCode]

Likely related: toretore/barby#83

Open tests/test.rb

Change the last line to be the troublesome data:

require 'json'
semacode = DataMatrix::Encoder.new(JSON.generate({ hello: "TEST TEST TEST TEST" }))

Then

while ruby tests/test.rb; do :; done

Eventually:

ruby(42018,0x7fffe3cd23c0) malloc: *** error for object 0x7fde87a14620: incorrect checksum for freed object - object was probably modified after being freed.
*** set a breakpoint in malloc_error_break to debug
Abort trap: 6