NSS SSL_ExportKeyingMaterial failing
Possibly similar/related to #28616 (moved)/#28973 (moved).
[warn] connection_or_compute_authenticate_cell_body(): Bug: TLS key export failed for unknown reason. (on Tor 0.4.0.1-alpha )
[warn] Couldn't send authenticate cell
[notice] Self-testing indicates your ORPort is reachable from the outside. Excellent.
[warn] connection_or_compute_authenticate_cell_body(): Bug: TLS key export failed for unknown reason. (on Tor 0.4.0.1-alpha )
[warn] Couldn't send authenticate cell
[warn] connection_or_compute_authenticate_cell_body(): Bug: TLS key export failed for unknown reason. (on Tor 0.4.0.1-alpha )
[warn] Couldn't send authenticate cell
[warn] connection_or_compute_authenticate_cell_body(): Bug: TLS key export failed for unknown reason. (on Tor 0.4.0.1-alpha )
[warn] Couldn't send authenticate cell
[warn] connection_or_compute_authenticate_cell_body(): Bug: TLS key export failed for unknown reason. (on Tor 0.4.0.1-alpha )
[warn] Couldn't send authenticate cell
[notice] Bootstrapped 15% (handshake_done): Handshake with a relay done
[notice] Bootstrapped 75% (enough_dirinfo): Loaded enough directory info to build circuits
[notice] Bootstrapped 90% (ap_handshake_done): Handshake fininshed with a relay to build circuits
[notice] Bootstrapped 95% (circuit_create): Establishing a Tor circuit
[warn] connection_or_compute_authenticate_cell_body(): Bug: TLS key export failed for unknown reason. (on Tor 0.4.0.1-alpha )
[warn] Couldn't send authenticate cell
[notice] Bootstrapped 100% (done): Done
[warn] connection_or_compute_authenticate_cell_body(): Bug: TLS key export failed for unknown reason. (on Tor 0.4.0.1-alpha )
[warn] Couldn't send authenticate cell
[warn] connection_or_compute_authenticate_cell_body(): Bug: TLS key export failed for unknown reason. (on Tor 0.4.0.1-alpha )
[warn] Couldn't send authenticate cell
[warn] connection_or_compute_authenticate_cell_body(): Bug: TLS key export failed for unknown reason. (on Tor 0.4.0.1-alpha )
Reported by Alex on tor-relays@ - https://lists.torproject.org/pipermail/tor-relays/2019-January/016890.html