restricted system commands enabled.
(./attr-nodes.tex
box: hlist=5
list: glyph=7 glue=7 kern=7 penalty=7 rule=7 whatsit=7 hlist=7 disc=7
Underfull \hbox (badness 10000) in paragraph at lines 20--20
\f x
vbox: vlist=6
vlist: hlist=8
line: local_par=8 glyph=8 penalty=8 glue=8 glue=8
! \textfont1 is undefined (character 120).
l.22 \setbox0\hbox{\A=9 $x$
}
math: math=9 math=9
hpack: hlist=4
Overfull \vbox (1.0pt too high) detected at line 26
vsplit: vlist=4)
(see the transcript file for additional information)
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Transcript written on attr-nodes.log.