noncrashing syncthing

gistfile1.txt

[DFBQ4] 02:08:10 INFO: Established secure connection to CKEWUTO at [2601:]:50747-[2a01:]:22000 (tcp-client) (TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305)
[DFBQ4] 02:08:10 INFO: Device CKEWUTO client is "syncthing v0.14.42" named "z"
[DFBQ4] 02:08:11 INFO: Completed initial scan of readonly folder "G" (rg5cj-byvph)
[DFBQ4] 02:08:16 INFO: New NAT port mapping: external TCP address 73:51492 to local address 0.0.0.0:22000.
[DFBQ4] 02:08:16 INFO: New NAT port mapping: external TCP address 73:14529 to local address 0.0.0.0:22000.
[DFBQ4] 02:08:16 INFO: Detected 2 NAT devices
[DFBQ4] 02:08:24 INFO: Joined relay relay://107.150.6.122:8080
[DFBQ4] 02:08:25 INFO: kcp://0.0.0.0:22020 detected NAT type: Port restricted NAT
[DFBQ4] 02:08:25 INFO: kcp://0.0.0.0:22020 resolved external address kcp://73:22020 (via stun.voipstunt.com:3478)
[DFBQ4] 02:08:30 INFO: Connected to already connected device CKEWUTO (existing: [2601]:50747-[2a01]:22000/tcp-client new: 192.:50836-107.150.6.122:8080/relay-server)
[DFBQ4] 02:11:19 INFO: Connection to CKEWUTO closed: reading length: EOF
[DFBQ4] 02:11:53 INFO: Established secure connection to CKEWUTO at 192:50876-107.150.6.122:8080 (relay-server) (TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305)
[DFBQ4] 02:11:53 INFO: Device CKEWUTO client is "syncthing v0.14.42" named "z"
[DFBQ4] 02:11:54 INFO: Connection to CKEWUTO closed: reading length: EOF
[DFBQ4] 02:12:14 INFO: Established secure connection to CKEWUTO at [2601]:50890-[2a01]:22000 (tcp-client) (TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305)
[DFBQ4] 02:12:14 INFO: Device CKEWUTO client is "syncthing v0.14.42" named "z"
[DFBQ4] 02:12:29 INFO: Connection to CKEWUTO closed: reading length: EOF
[DFBQ4] 02:12:38 INFO: Established secure connection to CKEWUTO at 0.0.0.0:22020-5.:22020 (kcp-client) (TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305)
[DFBQ4] 02:12:38 INFO: Device CKEWUTO client is "syncthing v0.14.42" named "z"
[DFBQ4] 02:12:38 INFO: Connection to CKEWUTO closed: reading length: EOF
[DFBQ4] 02:13:03 INFO: Established secure connection to CKEWUTO at 0.0.0.0:22020-[2a01:]:22020 (kcp-client) (TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305)
[DFBQ4] 02:13:03 INFO: Device CKEWUTO client is "syncthing v0.14.42" named "z"
[DFBQ4] 02:13:20 INFO: Established secure connection to CKEWUTO at [2601]:50911-[2a01]:22000 (tcp-client) (TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305)
[DFBQ4] 02:13:20 INFO: Replacing old connection 0.0.0.0:22020-[2a01]:22020/kcp-client with [2601]:50911-[2a01]:22000/tcp-client for CKEWUTO
[DFBQ4] 02:13:20 INFO: Connection to CKEWUTO closed: writing message: broken pipe
[DFBQ4] 02:23:15 INFO: Device CKEWUTO client is "syncthing v0.14.42" named "z"
[DFBQ4] 02:23:15 INFO: Failed to exchange Hello messages with CKEWUTO ([2a01:]:22020): broken pipe
[DFBQ4] 02:23:15 INFO: Failed to exchange Hello messages with CKEWUTO ([2a01:]:22020): broken pipe
[DFBQ4] 02:23:15 INFO: Connection to CKEWUTO closed: reading length: read tcp [2601]:50911->[2a01]:22000: wsarecv: An existing connection was forcibly closed by the remote host.
[DFBQ4] 02:23:40 INFO: Established secure connection to CKEWUTO at 192.:51028-107.150.6.122:8080 (relay-server) (TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305)
[DFBQ4] 02:23:40 INFO: Device CKEWUTO client is "syncthing v0.14.42" named "z"
[DFBQ4] 02:23:47 INFO: Established secure connection to CKEWUTO at [2601]:51035-[2a01]:22000 (tcp-client) (TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305)
[DFBQ4] 02:23:47 INFO: Replacing old connection 192.:51028-107.150.6.122:8080/relay-server with [2601]:51035-[2a01:]:22000/tcp-client for CKEWUTO
[DFBQ4] 02:23:47 INFO: Connection to CKEWUTO closed: reading length: read tcp 192.:51028->107.150.6.122:8080: use of closed network connection
[DFBQ4] 02:23:47 INFO: Device CKEWUTO client is "syncthing v0.14.42" named "z"
[DFBQ4] 02:23:56 INFO: Connected to already connected device CKEWUTO (existing: [2601:]:51035-[2a01:]:22000/tcp-client new: 0.0.0.0:22020-[2a01:]:22020/kcp-server)