compile panics when there is error in the mustache templating

[zramsay]

in this particular case i was iterating over a list, and accidentally used a backslash instead of a forward slash e.g.,

{{#tasks}}
- {{.}}
{{\tasks}}

The correct snippet

{{#tasks}}
- {{.}}
{{/tasks}}

the error:

panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x135acc8]