mtx-context     | run 1: luatex --fmt="/Users/srsarnob/Library/texlive/2019/texmf-var/luatex-cache/context/a86c089b384a3076dc514ba966a1fac9/formats/luatex/cont-en" --jobname="books_computers_java" --lua="/Users/srsarnob/Library/texlive/2019/texmf-var/luatex-cache/context/a86c089b384a3076dc514ba966a1fac9/formats/luatex/cont-en.lui" --c:autogenerate --c:currentrun=1 --c:fulljobname="./books_computers_java.tex" --c:input="./books_computers_java.tex" --c:kindofrun=1 --c:maxnofruns=9 --c:synctex="1" --c:texmfbinpath="/usr/local/texlive/2019/bin/x86_64-darwin" "cont-yes.mkiv"

This is LuaTeX, Version 1.10.0 (TeX Live 2019)
 system commands enabled.
open source     > level 1, order 1, name '/usr/local/texlive/2019/texmf-dist/tex/context/base/mkiv/cont-yes.mkiv'
system          >
system          > ConTeXt  ver: 2019.03.21 21:39 MKIV beta  fmt: 2020.2.18  int: english/english
system          >
system          > 'cont-new.mkiv' loaded
open source     > level 2, order 2, name '/usr/local/texlive/2019/texmf-dist/tex/context/base/mkiv/cont-new.mkiv'
system          > beware: some patches loaded from cont-new.mkiv
close source    > level 2, order 2, name '/usr/local/texlive/2019/texmf-dist/tex/context/base/mkiv/cont-new.mkiv'
system          > files > jobname 'books_computers_java', input './books_computers_java', result 'books_computers_java'
fonts           > latin modern fonts are not preloaded
languages       > language 'en' is active
system          > synctex functionality is enabled, expect 5-10 pct runtime overhead!
open source     > level 2, order 3, name '/Users/srsarnob/Desktop/sarnobat.git/tex/books_computers_java.tex'
fonts           > preloading latin modern fonts (second stage)
fonts           > 'fallback modern-designsize rm 12pt' is loaded
structure       > sectioning > title @ level 2 : 0.0 ->  \startalignment [middle] Books (Computers & Technology 2) \stopalignment
floatblocks     > '1' placed (here)
backend         > xmp > using file '/usr/local/texlive/2019/texmf-dist/tex/context/base/mkiv/lpdf-pdx.xml'
pages           > flushing realpage 1, userpage 1, subpage 1
close source    > level 2, order 3, name '/Users/srsarnob/Desktop/sarnobat.git/tex/books_computers_java.tex'
close source    > level 1, order 3, name '/usr/local/texlive/2019/texmf-dist/tex/context/base/mkiv/cont-yes.mkiv'

mkiv lua stats  > scheme handling time: 0.000 seconds, 1 processed, threshold 86400 seconds, loaded: https:2, reused: none
mkiv lua stats  > used config file: selfautoparent:/texmfcnf.lua;selfautoparent:/texmf-dist/web2c/texmfcnf.lua
mkiv lua stats  > used cache path: readable+writable: '/Users/srsarnob/Library/texlive/2019/texmf-var/luatex-cache/context/a86c089b384a3076dc514ba966a1fac9'
mkiv lua stats  > resource resolver: loadtime 0.154 seconds, 0 scans with scantime 0.000 seconds, 0 shared scans, 18 found files, scanned paths: <none>
mkiv lua stats  > stored bytecode data: 443 modules (0.365 sec), 93 tables (0.013 sec), 536 chunks (0.378 sec)
mkiv lua stats  > traced context: maxstack: 1369, freed: 0, unreachable: 1369
mkiv lua stats  > cleaned up reserved nodes: 54 nodes, 9 lists of 440
mkiv lua stats  > node memory usage: 1 glue, 3 kern, 2 penalty, 14 attribute, 51 glue_spec, 4 attribute_list, 2 temp, 2 user_defined
mkiv lua stats  > node list callback tasks: 8 unique task lists, 7 instances (re)created, 113 calls
mkiv lua stats  > synctex tracing: 2 referenced files, 4 files ignored, 18 objects flushed, logfile: books_computers_java.synctex
mkiv lua stats  > driver time: 0.061 seconds
mkiv lua stats  > used backend: pdf (backend for directly generating pdf output)
mkiv lua stats  > jobdata time: 0.001 seconds saving, 0.000 seconds loading
mkiv lua stats  > callbacks: internal: 300, file: 170, direct: 4, late: 19, function 614, total: 1107
mkiv lua stats  > randomizer: resumed with value 0.65509332390502
mkiv lua stats  > result saved in file: books_computers_java.pdf, compresslevel 3, objectcompresslevel 1
mkiv lua stats  > loaded patterns: en::1, load time: 0.000
mkiv lua stats  > loaded fonts: 6 files: latinmodern-math.otf, lmmono12-regular.otf, lmmono8-regular.otf, lmroman10-regular.otf, lmroman12-bold.otf, lmroman12-regular.otf
mkiv lua stats  > font engine: otf 3.107, afm 1.513, tfm 1.000, 11 instances, 3 shared in backend, 3 common vectors, 0 common hashes, load time 0.229 seconds
mkiv lua stats  > graphics processing time: 0.022 seconds including tex, 2 processed images, 2 unique asked, 2 bad names
mkiv lua stats  > used platform: osx-ppc, type: unix, binary subtree: bin
mkiv lua stats  > used engine: luatex version 1.1 with functionality level 7127, banner: this is luatex, version 1.10.0 (tex live 2019)
mkiv lua stats  > control sequences: 45289 of 65536 + 100000
mkiv lua stats  > lua properties: engine: lua 5.3, used memory: 139 MB (ctx: 139 MB), hash chars: min(64,40), symbol mask: utf (τεχ)
mkiv lua stats  > runtime: 0.808 seconds, 1 processed pages, 1 shipped pages, 1.238 pages/second
system          | total runtime: 1.238 seconds