this derivation will be built: /nix/store/4wb551v1cghgj4cw1m1gcgxm58pbdmwr-vm-test-run-hermes-vm.drv error: Cannot build '/nix/store/4wb551v1cghgj4cw1m1gcgxm58pbdmwr-vm-test-run-hermes-vm.drv'. Reason: builder failed with exit code 1. Output paths: /nix/store/63mkdxyk0dafi2ga923d525cwblph6ja-vm-test-run-hermes-vm Last 25 log lines: > machine # mm_receive_fd: recvmsg: expected received 1 got 0 > machine # proxy dialer did not pass back a connection > machine # [ 2473.406218] runuser[10463]: pam_unix(runuser:session): session closed for user alice > machine # [ 2474.422709] runuser[10473]: pam_unix(runuser:session): session opened for user alice(uid=1000) by (uid=0) > machine # Failed to connect to vsock:735577804:22: Connection timed out > machine # mm_receive_fd: recvmsg: expected received 1 got 0 > machine # proxy dialer did not pass back a connection > machine # [ 2476.478397] runuser[10473]: pam_unix(runuser:session): session closed for user alice > !!! Traceback (most recent call last): > !!! File "", line 67, in > !!! machine.wait_until_succeeds( > !!! > !!! RequestedAssertionFailed: action timed out after 2404.41 seconds (timeout=2400.0) > cleanup > kill QemuMachine (pid 45) > machine # qemu-system-x86_64: terminating on signal 15 from pid 39 (/nix/store/d64q19q1xjdwfhqx6czvrjgrhq0n3lcc-python3-3.14.7/bin/python3.14) > machine # [2026-09-20T05:58:50Z INFO virtiofsd] Client disconnected, shutting down > machine # [2026-09-20T05:58:50Z INFO virtiofsd] Client disconnected, shutting down > machine # [2026-09-20T05:58:50Z INFO virtiofsd] Client disconnected, shutting down > kill QemuMachine (pid 96) > nft # qemu-system-x86_64: terminating on signal 15 from pid 39 (/nix/store/d64q19q1xjdwfhqx6czvrjgrhq0n3lcc-python3-3.14.7/bin/python3.14) > nft # [2026-09-20T05:58:51Z INFO virtiofsd] Client disconnected, shutting down > nft # [2026-09-20T05:58:51Z INFO virtiofsd] Client disconnected, shutting down > nft # [2026-09-20T05:58:51Z INFO virtiofsd] Client disconnected, shutting down > (finished: cleanup, in 0.78 seconds) For full logs, run: nix log /nix/store/4wb551v1cghgj4cw1m1gcgxm58pbdmwr-vm-test-run-hermes-vm.drv