restricted system commands enabled.
(./extraprimitives-groups.tex
all 385
tex 340
core 1
etex 65
luatex 320
pdftex 0
omega 0
aleph 0
etex+luatex 385[\directlua]:1: attempt to concatenate a nil value (global 'firs
t')
stack traceback:
[\directlua]:1: in main chunk.
l.12 }
)
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