these 32 derivations will be built:
  /nix/store/dsk3kaa7jcc1rfr0r1br5p9agdka6rhb-nix.conf.drv
  /nix/store/l0i1y1wybx25slb89z46zcgipa5qqyhf-X-Restart-Triggers-nix-daemon.drv
  /nix/store/lb747hs77y89x10xpc7qp5jbkdss84qx-unit-nix-daemon.service.drv
  /nix/store/pfkqialy5xawzzx3hvvlrmha97zlg007-unit-nix-grpc-daemon.service.drv
  /nix/store/z21gnrhrxfa060mw9svysdkjl7vwxyda-system-units.drv
  /nix/store/9glczql8hms9nj3f94dq1750z9b390ql-etc.drv
  /nix/store/4cfis6nik2fy7bb18727d4qr3z90r3zm-activate.drv
  /nix/store/br4dyznmc2rmpxqw8ld9dyb43ham5hm4-nixos-system-worker1-test.drv
  /nix/store/rbx86yg029vgn55r91mi1y2d84pg26wq-closure-info.drv
  /nix/store/5a7j00c4yqb1c6filrvw2skp96j0v23d-run-nixos-vm.drv
  /nix/store/1dl1vpb4ppbhkzs3z6s3c33jsl521dg2-nixos-vm.drv
  /nix/store/xlykgpg4im102pwyin88g7d55mpk42fq-nix.conf.drv
  /nix/store/8vpqsdq1yvhsqla04a0snim2g971xvmf-X-Restart-Triggers-nix-daemon.drv
  /nix/store/nlavc0bd8jcq7jaav1sdylsg8apix2hr-unit-nix-daemon.service.drv
  /nix/store/55i0nxgzai1spj8g35p12w5mjilbqmnx-system-units.drv
  /nix/store/f2szcc1llxf9prcr07k49xby3zddl4v1-etc.drv
  /nix/store/gfx9rh662mvg998shwqlrbykqhwjfhw3-activate.drv
  /nix/store/54yw0sga0d52c0nf3b1j33p914fm6mi7-nixos-system-client-test.drv
  /nix/store/cdqsf25b75rdvmxaqazg7vlz6q2fadzz-closure-info.drv
  /nix/store/vgpd5b8gzn5h9kfjsb7lhbg39rqwxxiq-run-nixos-vm.drv
  /nix/store/979c2pwfbh725jppgacj4ms0slzbfd6s-nixos-vm.drv
  /nix/store/h8ghksz63di39gphc575z89s1ifxa3w6-test-script.drv
  /nix/store/m9vz11hc7iarfzc84m8r920nsn715ykb-system-units.drv
  /nix/store/58a009znk9a6csq6hkpkpmp8yl4ja19j-etc.drv
  /nix/store/lp5kwck2lfrwbhn79xqrbc64m3wzv79s-activate.drv
  /nix/store/r2m81p6yc14srq6bkympyl98i528rp52-nixos-system-worker2-test.drv
  /nix/store/fcvilw95q09h17qa3976lx0vjc9hhaxj-closure-info.drv
  /nix/store/h1jg396jphvyp1pj3qq2bid8xi466xhp-run-nixos-vm.drv
  /nix/store/z5zd8zqxb5ls7ih80ihl44sw0w1hb2qq-nixos-vm.drv
  /nix/store/4z3xx9j7v5b4yf0bi6bpmrhzsd9am6qz-driverConfiguration.json.drv
  /nix/store/7kinm0d611iicz61qprp1avg39difpx8-nixos-test-driver-nix-grpc-farm.drv
  /nix/store/i7gsqyrb8bzpivhqvk0z6qj76qsi5bwb-vm-test-run-nix-grpc-farm.drv
Failed to find a machine for remote build!
derivation: i7gsqyrb8bzpivhqvk0z6qj76qsi5bwb-vm-test-run-nix-grpc-farm.drv
required (system, features): (aarch64-linux, [kvm, nixos-test])
1 available machines:
(systems, maxjobs, supportedFeatures, mandatoryFeatures)
([aarch64-darwin, x86_64-darwin], 8, [big-parallel, recursive-nix], [])
error: Cannot build '/nix/store/i7gsqyrb8bzpivhqvk0z6qj76qsi5bwb-vm-test-run-nix-grpc-farm.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/r7h8wx11jby05l9n5irdnknjqgc8n5mw-vm-test-run-nix-grpc-farm
       Last 25 log lines:
       >
       > !!! Test "build hook: nix-daemon with builders = grpc://lb" failed with error: "command `nix build -L --max-jobs 0 --builders 'grpc://lb:50051?ca-cert=/nix/store/nxjidxgil6j96kna91adfd01y2hhlm82-farm-certs/ca.pem&client-cert=/nix/store/nxjidxgil6j96kna91adfd01y2hhlm82-farm-certs/ci.pem&client-key=/nix/store/nxjidxgil6j96kna91adfd01y2hhlm82-farm-certs/ci.key - - 4' --print-out-paths --no-link -f /nix/store/m74lzh91imw61a3ikc44dryv0fl01505-job.nix --argstr tag hook 2>&1 | tee /dev/stderr | tail -1` failed (exit code 1)"
       > !!! Traceback (most recent call last):
       > !!!   File "<string>", line 59, in <module>
       > !!!     out = client.succeed(f"nix build -L --max-jobs 0 --builders '{envoy} - - 4' --print-out-paths --no-link -f /nix/store/m74lzh91imw61a3ikc44dryv0fl01505-job.nix --argstr tag hook 2>&1 | tee /dev/stderr | tail -1").strip()
       > !!! 
       > !!! RequestedAssertionFailed: command `nix build -L --max-jobs 0 --builders 'grpc://lb:50051?ca-cert=/nix/store/nxjidxgil6j96kna91adfd01y2hhlm82-farm-certs/ca.pem&client-cert=/nix/store/nxjidxgil6j96kna91adfd01y2hhlm82-farm-certs/ci.pem&client-key=/nix/store/nxjidxgil6j96kna91adfd01y2hhlm82-farm-certs/ci.key - - 4' --print-out-paths --no-link -f /nix/store/m74lzh91imw61a3ikc44dryv0fl01505-job.nix --argstr tag hook 2>&1 | tee /dev/stderr | tail -1` failed (exit code 1)
       > cleanup
       > kill QemuMachine (pid 50)
       > cache # qemu-system-aarch64: terminating on signal 15 from pid 39 (/nix/store/lfh101cfjj8p8npcari9hk0lbqi33yvh-python3-3.14.7/bin/python3.14)
       > worker1 # [   52.295850] nix-daemon[785]: accepted connection from pid 1100, user nix-grpc-daemon
       > worker1 # [   52.312186] nix-daemon[785]: reaped child process 1103, status = succeeded
       > kill QemuMachine (pid 52)
       > client # qemu-system-aarch64: terminating on signal 15 from pid 39 (/nix/store/lfh101cfjj8p8npcari9hk0lbqi33yvh-python3-3.14.7/bin/python3.14)
       > kill QemuMachine (pid 51)
       > lb # qemu-system-aarch64: terminating on signal 15 from pid 39 (/nix/store/lfh101cfjj8p8npcari9hk0lbqi33yvh-python3-3.14.7/bin/python3.14)
       > kill QemuMachine (pid 53)
       > worker1 # qemu-system-aarch64: terminating on signal 15 from pid 39 (/nix/store/lfh101cfjj8p8npcari9hk0lbqi33yvh-python3-3.14.7/bin/python3.14)
       > kill QemuMachine (pid 54)
       > worker2 # qemu-system-aarch64: terminating on signal 15 from pid 39 (/nix/store/lfh101cfjj8p8npcari9hk0lbqi33yvh-python3-3.14.7/bin/python3.14)
       > (finished: cleanup, in 1.06 seconds)
       > additionally exposed symbols:
       >     cache, client, lb, worker1, worker2,
       >     vlan1,
       >     start_all, test_script, machines, machines_qemu, machines_nspawn, vlans, driver, log, os, create_machine, subtest, run_tests, join_all, retry, serial_stdout_off, serial_stdout_on, polling_condition, BaseMachine, QemuMachine, NspawnMachine, t, debug, dump_machine_ssh
       For full logs, run:
         nix log /nix/store/i7gsqyrb8bzpivhqvk0z6qj76qsi5bwb-vm-test-run-nix-grpc-farm.drv