<--- Last few GCs --->

   40272 ms: Mark-sweep 1232.0 (1280.6) -> 877.2 (924.8) MB, 99.9 / 0.0 ms [allocation failure] [GC in old space requested].
   40416 ms: Mark-sweep 877.2 (924.8) -> 877.2 (924.8) MB, 144.2 / 0.0 ms [allocation failure] [GC in old space requested].
   40539 ms: Mark-sweep 877.2 (924.8) -> 876.9 (887.8) MB, 123.5 / 0.0 ms [last resort gc].
   40647 ms: Mark-sweep 876.9 (887.8) -> 876.9 (887.8) MB, 107.1 / 0.0 ms [last resort gc].


<--- JS stacktrace --->

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

Security context: 0000029F31CCF791 <JS Object>
    2: toJSON [buffer.js:~793] [pc=0000039C8AF6DB81] (this=0000039E0924E219 <an Uint8Array with map 0000018895A06E01>)
    3: arguments adaptor frame: 1->0
    4: JSONSerialize(aka JSONSerialize) [native json.js:~141] [pc=0000039C8B0DBDFB] (this=0000029F31C04381 <undefined>,Q=0000014308676FC1 <String[8]: contents>,u=000003CE47635881 <an Object with map 000002A84E704259>,F=0000029F31C04201 <nu...

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