this derivation will be built:
  /nix/store/pq8by8dl39pzfd2ir9bss7igbda65nwg-check-cgo-flag-tables.drv
building '/nix/store/pq8by8dl39pzfd2ir9bss7igbda65nwg-check-cgo-flag-tables.drv' on 'grpc://farm.numtide.com:50051?client-cert=/run/secrets/vars/per-machine/bld1/nix-farm-ci/crt&client-key=/run/secrets/vars/per-machine/bld1/nix-farm-ci/key&connect-timeout=20&system=aarch64-darwin'
building '/nix/store/pq8by8dl39pzfd2ir9bss7igbda65nwg-check-cgo-flag-tables.drv' on farm.numtide.com:50051
check-cgo-flag-tables> mac02: building pq8by8dl39pzfd2ir9bss7igbda65nwg-check-cgo-flag-tables.drv
check-cgo-flag-tables> OK: go/go2nix/pkg/compile/cgosecurity.go matches cmd/go/internal/work/security.go of go1.26.3
could not copy /nix/store/h18qci20cniwsx29hh4084qx35dcdrgk-check-cgo-flag-tables: error: gRPC FetchNars failed: failed to connect to all addresses; last error: UNKNOWN: ipv6:%5B2a01:4f9:3071:1fc8::1%5D:50051: Handshake write failed
error: some outputs are unexpectedly invalid