This is pdfTeX, Version 3.141592653-2.6-1.40.23 (TeX Live 2021/Arch Linux) (preloaded format=pdflatex 2022.3.24)  17 APR 2022 16:06
entering extended mode
 restricted \write18 enabled.
 %&-line parsing enabled.
**lab.tex

! Emergency stop.
<*> lab.tex
           
End of file on the terminal!

 
Here is how much of TeX's memory you used:
 3 strings out of 478276
 110 string characters out of 5853013
 289381 words of memory out of 5000000
 18313 multiletter control sequences out of 15000+600000
 469259 words of font info for 28 fonts, out of 8000000 for 9000
 1141 hyphenation exceptions out of 8191
 0i,0n,0p,1b,6s stack positions out of 5000i,500n,10000p,200000b,80000s
!  ==> Fatal error occurred, no output PDF file produced!