'NimNode' and has to be discarded

[treeform]

It looks like its want me to report this bug, or the code that wants me to report the bug had a bug? I am confused.

/Users/me/.nimble/pkgs/yaml-#head/yaml/private/internal.nim(9, 5) Error: expression '
let ii378627 = ("/Users/me/.nimble/pkgs/yaml-#head/yaml/serialization.nim", 1060)
echo ["[NimYAML] Error in file ", ii378627.filename, " at line ", ii378627.line, ":"]
echo ["Too many children: " & $recListLen(recCase[i][1])]
echo ["[NimYAML] Stacktrace:"]
try: writeStackTrace()
except: discard
echo ["[NimYAML] Please report this bug."]
quit 1' is of type 'NimNode' and has to be discarded

Nim Compiler Version 0.17.3 [MacOSX: amd64]
Copyright (c) 2006-2018 by Andreas Rumpf

git hash: 5460bd2764db46048b9a3ecdd1d17a20a4b48b79
active boot switches: -d:release

[dom96]

See #54.

[treeform]

yeah its the same issue.