this derivation will be built:
  /nix/store/dai3k4kxq6hp3kgvq6k223xg8davbyhn-duplicacy-3.1.0.drv
building '/nix/store/dai3k4kxq6hp3kgvq6k223xg8davbyhn-duplicacy-3.1.0.drv'
duplicacy-3.1.0> unpacking sources
duplicacy-3.1.0> unpacking source archive /nix/store/lvwwj3p0sps5509a4k2cci4ji0znxvic-source
duplicacy-3.1.0> source root is source
duplicacy-3.1.0> patching sources
duplicacy-3.1.0> configuring
duplicacy-3.1.0> building
duplicacy-3.1.0> Building subPackage ./duplicacy
duplicacy-3.1.0> Building subPackage ./src
duplicacy-3.1.0> buildPhase completed in 43 seconds
duplicacy-3.1.0> installing
duplicacy-3.1.0> post-installation fixup
duplicacy-3.1.0> shrinking RPATHs of ELF executables and libraries in /nix/store/d8drwbg3dsrdcbmg5a4jl01l0ab43ccf-duplicacy-3.1.0
duplicacy-3.1.0> shrinking /nix/store/d8drwbg3dsrdcbmg5a4jl01l0ab43ccf-duplicacy-3.1.0/bin/duplicacy
duplicacy-3.1.0> strip is /nix/store/rkwixq2wda45gxx7zg1qh329zhkbvzzb-gcc-wrapper-11.3.0/bin/strip
duplicacy-3.1.0> stripping (with command strip and flags -S) in  /nix/store/d8drwbg3dsrdcbmg5a4jl01l0ab43ccf-duplicacy-3.1.0/bin
duplicacy-3.1.0> patching script interpreter paths in /nix/store/d8drwbg3dsrdcbmg5a4jl01l0ab43ccf-duplicacy-3.1.0
duplicacy-3.1.0> checking for references to /build/ in /nix/store/d8drwbg3dsrdcbmg5a4jl01l0ab43ccf-duplicacy-3.1.0...

upload niks3: ok