`bzl index create` fails with "failed to read command - read tcp" "use of closed network connection"

[IgorMinar]

$ bzl index create
2020-05-27 17:46:54.048189 I | Connecting...
2020-05-27 17:46:54.049428 I | Connected.
INFO[0000] Gathering list of all workspaces...           service=index
INFO[0000] Filtering workspace list... (0)               service=index
INFO[0000] Processing workspace list... (1)              service=index
INFO[0000] Wrote summary "/tmp/bzl/index/599b792019b2af1e8b9ff258eedd177a/queryresult.protobin" (0 targets)  service=index
2020-05-27 17:46:54.447280 I | [1/1] indexing @//... (0 targets)
[bzld] 2020/05/27 17:46:54.447505 ERROR: client([::1]:60124) - failed to read command - read tcp [::1]:4150->[::1]:60124: use of closed network connection

bzl version 0.8.1