Rc files read:
  NONE
Latexmk: This is Latexmk, John Collins, 15 June 2025. Version 4.87.
No existing .aux file, so I'll make a simple one, and require run of *latex.
Latexmk: applying rule 'pdflatex'...
Rule 'pdflatex':  Reasons for rerun
Category 'other':
  Rerun of 'pdflatex' forced or previously required:
    Reason or flag: 'Initial setup'

------------
Run number 1 of rule 'pdflatex'
------------
------------
Running 'lualatex --no-shell-escape  -interaction=nonstopmode -file-line-error -recorder -output-directory="/work/out"  "bad.tex"'
------------
This is LuaHBTeX, Version 1.22.0 (TeX Live 2025) 
(./bad.tex
LaTeX2e <2025-11-01>
L3 programming layer <2026-01-19>
 (/opt/texlive/texmf-dist/tex/latex/base/article.cls
Document Class: article 2025/01/22 v1.4n Standard LaTeX document class
(/opt/texlive/texmf-dist/tex/latex/base/size10.clo)) (/opt/texlive/texmf-dist/tex/latex/fontspec/fontspec.sty (/opt/texlive/texmf-dist/tex/latex/l3packages/xparse/xparse.sty (/opt/texlive/texmf-dist/tex/latex/l3kernel/expl3.sty (/opt/texlive/texmf-dist/tex/latex/l3backend/l3backend-luatex.def))) (/opt/texlive/texmf-dist/tex/latex/fontspec/fontspec-luatex.sty (/opt/texlive/texmf-dist/tex/latex/base/fontenc.sty) (/opt/texlive/texmf-dist/tex/latex/fontspec/fontspec.cfg))) (/work/out/bad.aux)
./bad.tex:5: Undefined control sequence.
l.5 \undefinedmacro
                   {x}

LaTeX Warning: Reference `later' on page 1 undefined on input line 6.


Overfull \hbox (114.97337pt too wide) detected at line 6
\TU/TeXGyreTermes(0)/m/n/10 wide wide wide wide wide wide
Missing character: There is no 𝔸 (U+1D538) in font "name:TeX Gyre Termes:mode=node;script=latn;language=dflt;+tlig;"!
Missing character: There is no ᚠ (U+16A0) in font "name:TeX Gyre Termes:mode=node;script=latn;language=dflt;+tlig;"!
Missing character: There is no 𝔸 (U+1D538) in font "name:TeX Gyre Termes:mode=node;script=latn;language=dflt;+tlig;"!
Missing character: There is no ᚠ (U+16A0) in font "name:TeX Gyre Termes:mode=node;script=latn;language=dflt;+tlig;"!
[1{/opt/texlive/texmf-var/fonts/map/pdftex/updmap/pdftex.map}
Missing character: There is no 𝔸 (U+1D538) in font "name:TeX Gyre Termes:mode=node;script=latn;language=dflt;+tlig;"!
Missing character: There is no ᚠ (U+16A0) in font "name:TeX Gyre Termes:mode=node;script=latn;language=dflt;+tlig;"!
] (/work/out/bad.aux)

LaTeX Warning: There were undefined references.


LaTeX Warning: Label(s) may have changed. Rerun to get cross-references right.

)
(see the transcript file for additional information)
 411 words of node memory still in use:
   3 hlist, 1 vlist, 1 rule, 2 glue, 3 kern, 1 glyph, 4 attribute, 49 glue_spec, 4 attribute_list, 1 write nodes
   avail lists: 1:1,2:48,3:18,4:1,5:23,6:4,7:160,9:26
</opt/texlive/texmf-dist/fonts/opentype/public/tex-gyre/texgyretermes-bold.otf></opt/texlive/texmf-dist/fonts/opentype/public/tex-gyre/texgyretermes-regular.otf>
Output written on bad.pdf (1 page, 5830 bytes).
Transcript written on bad.log.
Latexmk: Getting log file '/work/out/bad.log'
Latexmk: Examining '/work/out/bad.fls'
Latexmk: Examining '/work/out/bad.log'
Latexmk: References changed.
Latexmk: Log file says output to 'bad.pdf'
Latexmk: Using bibtex to make bibliography file(s).
Latexmk: ====Undefined refs and citations with line #s in .tex file:
  Reference `later' on page 1 undefined on input line 6
  Missing character: There is no 𝔸 (U+1D538) in font "name:TeX Gyre Termes:mode=node;script=latn;language=dflt;+tlig;"!
  Missing character: There is no ᚠ (U+16A0) in font "name:TeX Gyre Termes:mode=node;script=latn;language=dflt;+tlig;"!
  Missing character: There is no 𝔸 (U+1D538) in font "name:TeX Gyre Termes:mode=node;script=latn;language=dflt;+tlig;"!
  Missing character: There is no ᚠ (U+16A0) in font "name:TeX Gyre Termes:mode=node;script=latn;language=dflt;+tlig;"!
  Missing character: There is no 𝔸 (U+1D538) in font "name:TeX Gyre Termes:mode=node;script=latn;language=dflt;+tlig;"!
  Missing character: There is no ᚠ (U+16A0) in font "name:TeX Gyre Termes:mode=node;script=latn;language=dflt;+tlig;"!
Latexmk: Summary of warnings from last run of *latex:
  Latex failed to resolve 1 reference(s)
  =====Latex reported missing or unavailable character(s).
=====See log file for details.
Latexmk: Errors, so I did not complete making targets
Latexmk: Sometimes, the -f option can be used to get latexmk
  to try to force complete processing.
  But normally, you will need to correct the file(s) that caused the
  error, and then rerun latexmk.
  In some cases, it is best to clean out generated files before rerunning
  latexmk after you've corrected the files.
Collected error summary (may duplicate other messages):
  pdflatex: Command for 'pdflatex' gave return code 1
      Refer to '/work/out/bad.log' and/or above output for details

