Possible memory leak

[exigon]

The following code produced a nasty error message

Plugins:
susy (2.2.12)
breakpoint (2.6.1)

Code (with expected result):
https://gist.github.com/exigon/57905c7d03a98be600cacb369037a9a6

Actual result (500 Internal Server Error):
PHP Fatal error: Out of memory (allocated 149159936) (tried to allocate 130968 bytes) in /Libraries/scssphp/src/Compiler.php on line 1204

I tracked it to the span mixin of susy. (Without including spans, all went well, although it made susy useless.)

[syphen]

I was just trying to get Susy running myself and ran into this issue. Does anyone have any potential fixes or should I be using a different branch?

This is the exact error:
Allowed memory size of 134217728 bytes exhausted (tried to allocate 130968 bytes) in /src/Compiler.php on line 1205

[Cerdic]

Still an issue

Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 262144 bytes) in /Users/cedric/Sites/scssphp/src/Compiler.php on line 1502```

[Cerdic]

Not a memory leak but an infinite compiling loop due to the tricky:

@mixin span($span) {
...
    @include nested($span) { @content; }
 ...
}

which was falling on a mixin @content bug (picking the wrong level one)