Subjack not working on digital ocean VPS

[ethicalhackingplayground]

I get this error when installing subjack in my digital ocean box.

fatal error: runtime: out of memory

runtime stack:
runtime.throw(0xe44a39, 0x16)
        /usr/local/go/src/runtime/panic.go:774 +0x72
runtime.sysMap(0xc024000000, 0x4000000, 0x15c6958)
        /usr/local/go/src/runtime/mem_linux.go:169 +0xc5
runtime.(*mheap).sysAlloc(0x159e940, 0x2000, 0x2000, 0x7ffed7bea668)
        /usr/local/go/src/runtime/malloc.go:701 +0x1cd
runtime.(*mheap).grow(0x159e940, 0x1, 0xffffffff)
        /usr/local/go/src/runtime/mheap.go:1255 +0xa3
runtime.(*mheap).allocSpanLocked(0x159e940, 0x1, 0x15c6968, 0x7fcaac69d5f8)
        /usr/local/go/src/runtime/mheap.go:1170 +0x266
runtime.(*mheap).alloc_m(0x159e940, 0x1, 0x15c001c, 0x7fcaac69d5f8)
        /usr/local/go/src/runtime/mheap.go:1022 +0xc2
runtime.(*mheap).alloc.func1()
        /usr/local/go/src/runtime/mheap.go:1093 +0x4c
runtime.systemstack(0x45a4e4)
        /usr/local/go/src/runtime/asm_amd64.s:370 +0x66
runtime.mstart()
        /usr/local/go/src/runtime/proc.go:1146

goroutine 1 [running]:
runtime.systemstack_switch()
        /usr/local/go/src/runtime/asm_amd64.s:330 fp=0xc01564cca0 sp=0xc01564cc98 pc=0x45a5e0
runtime.(*mheap).alloc(0x159e940, 0x1, 0x1001c, 0x0)
        /usr/local/go/src/runtime/mheap.go:1092 +0x8a fp=0xc01564ccf0 sp=0xc01564cca0 pc=0x42502a
runtime.(*mcentral).grow(0x159f3f8, 0x0)
        /usr/local/go/src/runtime/mcentral.go:255 +0x7b fp=0xc01564cd30 sp=0xc01564ccf0 pc=0x416f7b
runtime.(*mcentral).cacheSpan(0x159f3f8, 0x203008)
        /usr/local/go/src/runtime/mcentral.go:106 +0x2fe fp=0xc01564cd90 sp=0xc01564cd30 pc=0x416a9e
runtime.(*mcache).refill(0x7fcab01c8008, 0x1c)
        /usr/local/go/src/runtime/mcache.go:138 +0x85 fp=0xc01564cdb0 sp=0xc01564cd90 pc=0x416545
runtime.(*mcache).nextFree(0x7fcab01c8008, 0x1c, 0xc8, 0xe25900, 0xdb9d01)
        /usr/local/go/src/runtime/malloc.go:854 +0x87 fp=0xc01564cde8 sp=0xc01564cdb0 pc=0x40b797
runtime.mallocgc(0xd0, 0xe25900, 0x1, 0xc023fff5f0)
        /usr/local/go/src/runtime/malloc.go:1022 +0x793 fp=0xc01564ce88 sp=0xc01564cde8 pc=0x40c0d3
runtime.newobject(0xe25900, 0xc023fff5f0)
        /usr/local/go/src/runtime/malloc.go:1151 +0x38 fp=0xc01564ceb8 sp=0xc01564ce88 pc=0x40c4c8
cmd/compile/internal/gc.(*Progs).NewProg(...)
        /usr/local/go/src/cmd/compile/internal/gc/gsubr.go:84
cmd/compile/internal/gc.(*Progs).Prog(0xc00a23f650, 0xc023d51983, 0xc023fff520)
        /usr/local/go/src/cmd/compile/internal/gc/gsubr.go:129 +0x2cc fp=0xc01564cf10 sp=0xc01564ceb8 pc=0xc2696c
cmd/compile/internal/gc.(*SSAGenState).Prog(0xc002284f00, 0xc023981983, 0xc023fff520)
        /usr/local/go/src/cmd/compile/internal/gc/ssa.go:5169 +0x3c fp=0xc01564cf38 sp=0xc01564cf10 pc=0xcd29cc
cmd/compile/internal/gc.(*SSAGenState).Br(0xc002284f00, 0x311983, 0xc009b69e60, 0xc023fff520)
        /usr/local/go/src/cmd/compile/internal/gc/ssa.go:5198 +0x39 fp=0xc01564cf90 sp=0xc01564cf38 pc=0xcd2af9
cmd/compile/internal/amd64.ssaGenBlock(0xc002284f00, 0xc009b6a480, 0xc009b6a000)
        /usr/local/go/src/cmd/compile/internal/amd64/ssa.go:1236 +0x1c2 fp=0xc01564d038 sp=0xc01564cf90 pc=0xd4ee72
cmd/compile/internal/gc.genssa(0xc002ccc580, 0xc00a23f650)
        /usr/local/go/src/cmd/compile/internal/gc/ssa.go:5422 +0xde0 fp=0xc01564d510 sp=0xc01564d038 pc=0xcd4080
cmd/compile/internal/gc.compileSSA(0xc002ccd080, 0x0)
        /usr/local/go/src/cmd/compile/internal/gc/pgen.go:308 +0x3c2 fp=0xc01564d5f8 sp=0xc01564d510 pc=0xc71de2
cmd/compile/internal/gc.compile(0xc002ccd080)
        /usr/local/go/src/cmd/compile/internal/gc/pgen.go:277 +0x33d fp=0xc01564d670 sp=0xc01564d5f8 pc=0xc719ad
cmd/compile/internal/gc.funccompile(0xc002ccd080)
        /usr/local/go/src/cmd/compile/internal/gc/pgen.go:222 +0xc1 fp=0xc01564d6c8 sp=0xc01564d670 pc=0xc71561
cmd/compile/internal/gc.fninit(0xc00029d760, 0x2c, 0x2c)
        /usr/local/go/src/cmd/compile/internal/gc/init.go:63 +0x4a8 fp=0xc01564d7e8 sp=0xc01564d6c8 pc=0xc36c88
cmd/compile/internal/gc.Main(0xe5bfe8)
        /usr/local/go/src/cmd/compile/internal/gc/main.go:692 +0x394b fp=0xc01564dee8 sp=0xc01564d7e8 pc=0xc49a4b
main.main()
        /usr/local/go/src/cmd/compile/main.go:51 +0xac fp=0xc01564df60 sp=0xc01564dee8 pc=0xd8019c
runtime.main()
        /usr/local/go/src/runtime/proc.go:203 +0x21e fp=0xc01564dfe0 sp=0xc01564df60 pc=0x42f57e
runtime.goexit()
        /usr/local/go/src/runtime/asm_amd64.s:1357 +0x1 fp=0xc01564dfe8 sp=0xc01564dfe0 pc=0x45c531

[ethicalhackingplayground]

It stops installing at zonedb

[VitaliDzemidovich]

Same for me: unable to install on 1GB droplet.
But on 2GB it works fine.