go version go1.13.5 linux/amd64 git sha of code: 09e4007c31337dea27e9efca5f385bb37dad1f9a Linux hecturchi2.fritz.box 4.12.14-lp151.28.36-default #1 SMP Fri Dec 6 13:50:27 UTC 2019 (8f4a495) x86_64 x86_64 x86_64 GNU/Linux built on Fri Dec 20 17:49:42 CET 2019