while (<DATA>) {
    push @errors, $_ if m/^E|gmake/i;
}

print @errors;

__DATA__
E : abcdfcsds 1387382 43243 

ijigje jg445 3u4 (53545545) 

E : abcdfcsds 1387382 43243 

ijigje jg445 3u4 (53545545) 

E : abcdfcsds 1387382 43243 

ijigje jg445 3u4 (53545545) 

E : abcdfcsds 1387382 43243 

ijigje jg445 3u4 (53545545) 

E : abcdfcsds 1387382 43243 

ijigje jg445 3u4 (53545545) 

gmake : **** build failed fdjgu43uffer Error 1