Nitter can't be build with nim 1.4.0
```
  Building nitter/nitter using c backend
/home/nitter/nitter/src/formatters.nim(100, 18) Warning: Deprecated since v1.3.1; utcOffset= is deprecated [Deprecated]
/home/nitter/nitter/src/parserutils.nim(150, 11) template/generic instantiation of `?` from here
/home/nitter/nitter/src/parserutils.nim(18, 9) Error: expression 'j`gensym25' is of type 'JsonNode' and has to be used (or discarded)
       Tip: 58 messages have been suppressed, use --verbose to show them.
     Error: Build failed for package: nitter
        ... Execution failed with exit code 1
        ... Command: /usr/bin/nim c --colors:on --noNimblePath -d:release -d:NimblePkgVersion=0.1.0 --path:'/home/nitter/.nimble/pkgs/jester-#7e8df65' --path:/home/nitter/.nimble/pkgs/httpbeast-0.2.2 --path:'/home/nitter/.nimble/pkgs/asynctools-#pr_fix_compilation' --path:'/home/nitter/.nimble/pkgs/asynctools-#pr_fix_compilation' --path:'/home/nitter/.nimble/pkgs/regex-#2e32fdc' --path:/home/nitter/.nimble/pkgs/unicodedb-0.9.0 --path:/home/nitter/.nimble/pkgs/unicodeplus-0.8.0 --path:/home/nitter/.nimble/pkgs/unicodedb-0.9.0 --path:/home/nitter/.nimble/pkgs/segmentation-0.1.0 --path:/home/nitter/.nimble/pkgs/unicodedb-0.9.0 --path:/home/nitter/.nimble/pkgs/nimcrypto-0.4.11 --path:/home/nitter/.nimble/pkgs/karax-1.1.2 --path:/home/nitter/.nimble/pkgs/sass-0.1.0 --path:'/home/nitter/.nimble/pkgs/markdown-#head' --path:/home/nitter/.nimble/pkgs/packedjson-0.2.1 --path:'/home/nitter/.nimble/pkgs/snappy-#d13e2cc' --path:'/home/nitter/.nimble/pkgs/redpool-#57aeb25' --path:'/home/nitter/.nimble/pkgs/redis-#94bcbf1' --path:'/home/nitter/.nimble/pkgs/redis-#94bcbf1' --path:'/home/nitter/.nimble/pkgs/frosty-#0.0.6' --hints:off -o:/home/nitter/nitter/nitter /home/nitter/nitter/src/nitter.nim
```

It seems to be using deprecated code.