these 2 derivations will be built:
  /nix/store/8ncg7kx2chvsl2a2fvd98id7fm04psih-tincd-deps-0.1.0.drv
  /nix/store/i6jk00ghvdz6b2haw0glx9j6vyhpca5i-tincd-test-0.1.0.drv
error: build of '/nix/store/i6jk00ghvdz6b2haw0glx9j6vyhpca5i-tincd-test-0.1.0.drv' on 'ssh-ng://customer@mac02' failed: Cannot build '/nix/store/i6jk00ghvdz6b2haw0glx9j6vyhpca5i-tincd-test-0.1.0.drv'.
       Reason: builder failed with exit code 101.
       Output paths:
         /nix/store/fr3vixc1fy78qbh9q3a1isnjmmandx9x-tincd-test-0.1.0
       Last 25 log lines:
       >    Compiling rsa v0.10.0-rc.18
       >    Compiling ppv-lite86 v0.2.21
       >    Compiling rand_chacha v0.9.0
       >    Compiling rand_chacha v0.10.0
       >    Compiling tinc-tools v0.0.0 (/nix/var/nix/builds/nix-9660-1461221875/source/crates/tinc-tools)
       >    Compiling proptest v1.11.0
       > warning: unused variable: `n_shards`
       >    --> crates/tincd/src/daemon/setup.rs:659:13
       >     |
       > 659 |         let n_shards = if shard_tuns.is_empty() {
       >     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_n_shards`
       >     |
       >     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
       >
       > warning: `tincd` (lib) generated 1 warning (run `cargo fix --lib -p tincd` to apply 1 suggestion)
       > warning: `tincd` (lib test) generated 1 warning (1 duplicate)
       >     Finished `release` profile [optimized] target(s) in 1m 57s
       >      Running unittests src/lib.rs (target/release/deps/tinc_conf-77fd787b6d1285d6)
       > error: test failed, to rerun pass `-p tinc-conf --lib`
       >
       > Caused by:
       >   could not execute process `/nix/var/nix/builds/nix-9660-1461221875/source/scripts/macos-test-runner.sh /nix/var/nix/builds/nix-9660-1461221875/source/target/release/deps/tinc_conf-77fd787b6d1285d6` (never executed)
       >
       > Caused by:
       >   No such file or directory (os error 2)
       For full logs, run:
         nix log /nix/store/i6jk00ghvdz6b2haw0glx9j6vyhpca5i-tincd-test-0.1.0.drv
error: Cannot build '/nix/store/i6jk00ghvdz6b2haw0glx9j6vyhpca5i-tincd-test-0.1.0.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/fr3vixc1fy78qbh9q3a1isnjmmandx9x-tincd-test-0.1.0