restricted system commands enabled.
(./font-not-loadable.tex
! Font \a=nonexist not loadable: metric data not found or bad.
<to be read again>
\show
l.5 \font\a=nonexist \show
\a
> \a=select font nullfont.
l.5 \font\a=nonexist \show\a
! Font \b=nonexist at 12pt not loadable: metric data not found or bad.
l.6 \font\b=nonexist at 12pt
\show\b
> \b=select font nullfont.
l.6 \font\b=nonexist at 12pt \show\b
! Font \c=nonexist at 12.5pt not loadable: metric data not found or bad.
l.7 \font\c=nonexist at 12.5pt
! Font \d=nonexist scaled 1200 not loadable: metric data not found or bad.
l.8 \font\d=nonexist scaled 1200
> \e=select font nullfont.
l.10 \font\e=nonexist at 3pt \show\e
\message{[\fontname\e]}
[nullfont]
! Font \f=nonexist at 12pt not loadable: metric data not found or bad.
l.13 \font\f=nonexist at 12pt
\show\f
> \f=select font nullfont.
l.13 \font\f=nonexist at 12pt \show\f
! Font \g=nonexist2 at 12pt not loadable: metric data not found or bad.
l.15 \font\g=nonexist2 at 12pt
\show\g
> \g=select font nullfont.
l.15 \font\g=nonexist2 at 12pt \show\g
! Font \i=nonexist4 not loadable: metric data not found or bad.
<to be read again>
\show
l.17 \font\i=nonexist4 \show
\i
> \i=select font nullfont.
l.17 \font\i=nonexist4 \show\i
> \j=select font nullfont.
l.19 \font\j=nonexist5 \show\j
> \k=select font nullfont.
l.21 \font\k=nonexist6 \show\k
! error: (font): lua-loaded font '1' has no name!
! ==> Fatal error occurred, bad output DVI file produced!
No pages of output.