pandoc-2.19.2, pdflatex from TeXLive-2022.
pandoc args: --from=markdown+smart+grid_tables+pipe_tables-simple_tables+raw_html+implicit_figures+footnotes+intraword_underscores+auto_identifiers-inline_code_attributes --embed-resources --standalone --highlight-style=tango --top-level-division=chapter --table-of-contents --template=lib/template.tex --pdf-engine=pdflatex --to=latex --pdf-engine-opt=--interaction=nonstopmode --variable papersize=letterpaper --output=dist/trpl-2019-05-04.letter.pdf; plus book itself
Error message from pdflatex:
Error producing PDF.
! Missing number, treated as zero.
<to be read again>
(
l.306 \begin
This is what the (apparently) relevant fragment of the LaTeX file looks like:
299 │ \begin{longtable}[]{@{}
300 │ >{\raggedright\arraybackslash}p{(\columnwidth - 8\tabcolsep) * \real{0.4189}}
301 │ >{\raggedright\arraybackslash}p{(\columnwidth - 8\tabcolsep) * \real{0.0676}}
302 │ >{\raggedright\arraybackslash}p{(\columnwidth - 8\tabcolsep) * \real{0.0676}}
303 │ >{\raggedright\arraybackslash}p{(\columnwidth - 8\tabcolsep) * \real{0.0676}}
304 │ >{\raggedright\arraybackslash}p{(\columnwidth - 8\tabcolsep) * \real{0.3784}}@{}}
305 │ \toprule()
306 │ \begin{minipage}[b]{\linewidth}\raggedright
307 │ Target
308 │ \end{minipage} & \begin{minipage}[b]{\linewidth}\raggedright
309 │ std
310 │ \end{minipage} & \begin{minipage}[b]{\linewidth}\raggedright