JavaScript heap out of memory

[juniglee]

I have a grunt runner that uses grunt-postcss, and it seems to always fail on this stage.

Including the log for reference.

<--- Last few GCs --->

   94795 ms: Mark-sweep 1211.0 (1408.5) -> 1210.9 (1414.5) MB, 1796.0 / 0.0 ms [allocation failure] [GC in old space requested].
   96814 ms: Mark-sweep 1210.9 (1414.5) -> 1210.9 (1414.5) MB, 2019.4 / 0.0 ms [allocation failure] [GC in old space requested].
   98916 ms: Mark-sweep 1210.9 (1414.5) -> 1241.9 (1407.5) MB, 2101.3 / 0.0 ms [last resort gc].
  101075 ms: Mark-sweep 1241.9 (1407.5) -> 1272.9 (1407.5) MB, 2158.2 / 0.0 ms [last resort gc].


<--- JS stacktrace --->

==== JS stack trace =========================================

Security context: 000002C1A903FA99 <JS Object>
    2: comment [D:\Source\wng-frontend\node_modules\grunt-postcss\node_modules\postcss\lib\stringifier.js:~41] [pc=0000020FBF1D776F] (this=000003BB1B9FFFE1 <a Stringifier with map 000000D9AA549221>,node=000002BDF73309F1 <a Comment with map 000000D9AA5465C9>)
    3: arguments adaptor frame: 2->1
    4: rule [D:\Source\wng-frontend\node_modules\grunt-postcss\node_modules\postcss\lib\stringifier...

FATAL ERROR: CALL_AND_RETRY_LAST Allocation failed - JavaScript heap out of memory

Can I please get some assistance? I wonder if this is to do with the fact that we recently changed to Stylelint as our linter of choice. Stylelint uses PostCSS v6, but grunt-postcss is still currently using PostCSS v5.

[juniglee]

We have updated our version of grunt-postcss with the new version that was recently uploaded to use PostCSS v6, but we are still encountering the issue.