go version go1.9.4 linux/amd64 git sha of code: ed55daf2c6401ce656fdc470b3a9e06f4d145c63 Linux hecturchi2 4.4.120-45-default #1 SMP Wed Mar 14 20:51:49 UTC 2018 (623211f) x86_64 x86_64 x86_64 GNU/Linux built on Thu Mar 29 13:58:34 CEST 2018