V8 running out of memory when building Nuxt

Hi!
Running a quite large app on a 8Gb ram VPS, my CI/CD pipelines started to fail earlier this day for no reason.

Looking at the free space of the VPS, there is ~3.5Gb free memory when running the pipeline and I modified the node option
max-old-space-size
to 3000.
top - 09:19:24 up  2:15,  1 user,  load average: 0.10, 0.17, 0.34
Tasks: 174 total,   1 running, 173 sleeping,   0 stopped,   0 zombie
%Cpu(s):  3.1 us,  0.6 sy,  0.0 ni, 95.8 id,  0.0 wa,  0.0 hi,  0.1 si,  0.5 st 
MiB Mem :   7940.7 total,   2707.5 free,   3535.3 used,   2079.9 buff/cache     
MiB Swap:      0.0 total,      0.0 free,      0.0 used.   4405.5 avail Mem 


I have absolutely no idea why this is happening so suddenly, does anyone have any clue that I may explore?
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