Ineffective mark-compacts near heap limit Allocation failed

[srwadleigh]

This is a follow-up issue for a problem that was debugged in slack by @ramilexe

• add-contract.ts command also runs backfiller using childProcess.spawn and it doesn't inherit env from parent process.

Nodejs version is v15.14.0
Attempted fix NODE_OPTIONS=--max_old_space_size=8192

npx ts-node src/cli/add-contract.ts --name FPS --address ... --source-path ~/contract-tests/contracts/FPS.sol --artifact-path ~/contract-tests/artifacts/contracts/FPS.sol/FPS.json --starting-block 8498738

<--- Last few GCs --->

[60474:0x5c90660]  1582159 ms: Mark-sweep 3764.0 (4127.7) -> 3745.7 (4123.5) MB, 4864.7 / 0.0 ms  (average mu = 0.315, current mu = 0.285) task scavenge might not succeed
[60474:0x5c90660]  1582951 ms: Scavenge 3763.4 (4125.3) -> 3748.4 (4123.9) MB, 17.4 / 0.0 ms  (average mu = 0.315, current mu = 0.285) task 
[60474:0x5c90660]  1583353 ms: Scavenge 3764.7 (4126.0) -> 3750.8 (4125.3) MB, 18.5 / 0.0 ms  (average mu = 0.315, current mu = 0.285) task 

<--- JS stacktrace --->

FATAL ERROR: Ineffective mark-compacts near heap limit Allocation failed - JavaScript heap out of memory

stderr:  1: 0xa89e60 node::Abort() [node]

stderr:  2: 0x9ade29 node::FatalError(char const*, char const*) [node]

stderr:  3: 0xc7583e v8::Utils::ReportOOMFailure(v8::internal::Isolate*, char const*, bool) [node]

stderr:  4: 0xc75bb7 v8::internal::V8::FatalProcessOutOfMemory(v8::internal::Isolate*, char const*, bool) [node]
 5: 0xe3f6d5  [node]
 6: 0xe4027c  [node]
 7: 0xe4dc0b v8::internal::Heap::CollectGarbage(v8::internal::AllocationSpace, v8::internal::GarbageCollectionReason, v8::GCCallbackFlags) [node]
 8: 0xe5190c v8::internal::Heap::AllocateRawWithRetryOrFailSlowPath(int, v8::internal::AllocationType, v8::internal::AllocationOrigin, v8::internal::AllocationAlignment) [node]
 9: 0xe157da v8::internal::Factory::NewFillerObject(int, bool, v8::internal::AllocationType, v8::internal::AllocationOrigin) [node]
10: 0x116d4ab v8::internal::Runtime_AllocateInYoungGeneration(int, unsigned long*, v8::internal::Isolate*) [node]
11: 0x15045f9  [node]

Unhandled Rejection at: Promise { <rejected> null } reason: null