Cannot allocate memory, over 1g available · Issue #8400 · composer/composer · GitHub
Fatal error: Out of memory (allocated 363331584) (tried to allocate 10343341 bytes) in phar:///opt/cpanel/composer/bin/composer/src/Composer/Repository/ComposerRepository.php on line 339 · Issue #7721 · composer/composer · GitHub
Tough time iinstalling magento 2.1.5 on vps server - Magento Forums
Php: Composer fails due to insufficient memory allocation for JavaScript fork
Composer Memory Error
proc_open(): fork failed-can not allocate memory, error on aws ec2 instance while updating/installing some libraries or packages using composer | by Ziaur Rahman | Medium