this derivation will be built:
  /nix/store/r7n3yhpd58d7mvilmrnc85k7m4i2qdk4-nix-grpc-store-0.1.0.drv
error: build of '/nix/store/r7n3yhpd58d7mvilmrnc85k7m4i2qdk4-nix-grpc-store-0.1.0.drv' on 'ssh-ng://customer@mac02' failed: Cannot build '/nix/store/r7n3yhpd58d7mvilmrnc85k7m4i2qdk4-nix-grpc-store-0.1.0.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/bnb4220mkbnxjxy8jfkw6y1r94na4la5-nix-grpc-store-0.1.0
       Last 25 log lines:
       >   415 |         cfg.inflight,
       >   416 |         presentCalls.load(),
       >   417 |         total,
       >       |         ^~~~~
       > 4 warnings generated.
       > [11/36] Compiling C++ object libnix-grpc-dispatcher.a.p/src_daemon_dispatcher.cc.o
       > [12/36] Precompiling header ../pch/daemon_pch.hh
       > [13/36] Precompiling header ../pch/client_pch.hh
       > [14/36] Compiling C++ object oidc-test.p/tests_oidc-test.cc.o
       > [15/36] Compiling C++ object dispatcher-bench.p/tests_dispatcher-bench.cc.o
       > ../tests/dispatcher-bench.cc:500:17: warning: format specifies type 'unsigned long' but the argument has type 'uint64_t' (aka 'unsigned long long') [-Wformat]
       >   498 |                 "event=op op=%s n=%lu total_ms=%.1f mean_us=%.2f max_us=%.0f\n",
       >       |                                   ~~~
       >       |                                   %llu
       >   499 |                 name.c_str(),
       >   500 |                 st.n,
       >       |                 ^~~~
       > ../tests/dispatcher-bench.cc:508:13: warning: format specifies type 'unsigned long' but the argument has type 'uint64_t' (aka 'unsigned long long') [-Wformat]
       >   507 |             "event=total msgs=%lu dispatcher_s=%.3f msgs_per_s=%.0f\n",
       >       |                               ~~~
       >       |                               %llu
       >   508 |             msgs,
       >       |             ^~~~
       > 2 warnings generated.
       > ninja: build stopped: subcommand failed.
       For full logs, run:
         nix log /nix/store/r7n3yhpd58d7mvilmrnc85k7m4i2qdk4-nix-grpc-store-0.1.0.drv
error: Cannot build '/nix/store/r7n3yhpd58d7mvilmrnc85k7m4i2qdk4-nix-grpc-store-0.1.0.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/bnb4220mkbnxjxy8jfkw6y1r94na4la5-nix-grpc-store-0.1.0