tl2020 pretest begin

[Uwe Siart]

Karl Berry <karl at freefriends.org> writes:

> BTW, as discussed in the LaTeX newsletters and other places, lualatex in
> the pretest now invokes the luahbtex engine, as lualatex-dev did for the
> last couple months in TL19.

Install went smooth on Win7. But every call of lualatex invokes a remake
of lualatex.fmt - over and over again. It starts with:

-------
This is LuaTeX, Version 1.12.0 (TeX Live 2020/W32TeX)
 restricted system commands enabled.

kpathsea: Running mktexfmt lualatex.fmt

The command name is C:\Programme1\texlive\2020\bin\win32\mktexfmt
Running the command C:\Programme1\texlive\2020\bin\win32\fmtutil-user.exe
fmtutil: fmtutil is using the following fmtutil.cnf files (in precedence order):
-------

And then it exits with

-------
warning  (pdf backend): no pages of output.
Transcript written on lualatex.log.
fmtutil [INFO]: log file copied to: c:/users/siart/.texlive2020/texmf-var/web2c/luahbtex/lualatex.log
fmtutil [INFO]: c:/users/siart/.texlive2020/texmf-var/web2c/luahbtex/lualatex.fmt installed.
fmtutil [INFO]: disabled formats: 5
fmtutil [INFO]: successfully rebuilt formats: 1
fmtutil [INFO]: not selected formats: 54
fmtutil [INFO]: total formats: 60
fmtutil [INFO]: exiting with status 0
I can't find the format file `lualatex.fmt'!
-------

-- 
Uwe