this derivation will be built:
  /nix/store/iciava3jshy3x3bp4py2zcl413sk4ah2-zalgo-unstable-2020-08-26.drv
building '/nix/store/iciava3jshy3x3bp4py2zcl413sk4ah2-zalgo-unstable-2020-08-26.drv'
zalgo-unstable-2020-08-26> unpacking sources
zalgo-unstable-2020-08-26> unpacking source archive /nix/store/ydh6rh6z6azxsr188bjkzbvkalqr8csi-source
zalgo-unstable-2020-08-26> source root is source
zalgo-unstable-2020-08-26> patching sources
zalgo-unstable-2020-08-26> configuring
zalgo-unstable-2020-08-26> no configure script, doing nothing
zalgo-unstable-2020-08-26> building
zalgo-unstable-2020-08-26> build flags: SHELL=/nix/store/mysyx2ms2gm0n425gsz1hvwfk1jn1f9c-bash-5.1-p16/bin/bash
zalgo-unstable-2020-08-26> g++ main.cpp -std=c++17 -lstdc++ -o zalgo -Wall -Wextra -Wpedantic
zalgo-unstable-2020-08-26> installing
zalgo-unstable-2020-08-26> post-installation fixup
zalgo-unstable-2020-08-26> shrinking RPATHs of ELF executables and libraries in /nix/store/dhrblmi0wj060b9wkbbkcn1f5v8r2za6-zalgo-unstable-2020-08-26
zalgo-unstable-2020-08-26> shrinking /nix/store/dhrblmi0wj060b9wkbbkcn1f5v8r2za6-zalgo-unstable-2020-08-26/bin/zalgo
zalgo-unstable-2020-08-26> strip is /nix/store/rkwixq2wda45gxx7zg1qh329zhkbvzzb-gcc-wrapper-11.3.0/bin/strip
zalgo-unstable-2020-08-26> stripping (with command strip and flags -S) in  /nix/store/dhrblmi0wj060b9wkbbkcn1f5v8r2za6-zalgo-unstable-2020-08-26/bin
zalgo-unstable-2020-08-26> patching script interpreter paths in /nix/store/dhrblmi0wj060b9wkbbkcn1f5v8r2za6-zalgo-unstable-2020-08-26
zalgo-unstable-2020-08-26> checking for references to /build/ in /nix/store/dhrblmi0wj060b9wkbbkcn1f5v8r2za6-zalgo-unstable-2020-08-26...

upload niks3: ok