One of my nodes using `onlynet=tor` nodes is completely broken with current master as of 97a35f3ae5bff7f4a25d37d8961191fdbc8c5b67.

Tor is manually configured. Relevant `bitcoin.conf`:
```
onlynet=onion
proxy=127.0.0.1:9050
onion=127.0.0.1:9050
```

It does not manage to make any outgoing connections. The log has an endless stream of:
```
2021-03-03T13:42:13Z Socks5() connect to […].onion:8333 failed: general failure
2021-03-03T13:42:13Z Socks5() connect to […].onion:8333 failed: general failure
2021-03-03T13:42:14Z Socks5() connect to […].onion:8333 failed: general failure
2021-03-03T13:42:14Z Socks5() connect to […].onion:8333 failed: general failure
2021-03-03T13:42:15Z Socks5() connect to […].onion:8333 failed: general failure
2021-03-03T13:42:15Z Socks5() connect to […].onion:8333 failed: general failure
2021-03-03T13:42:16Z Socks5() connect to […].onion:8333 failed: general failure
2021-03-03T13:42:16Z Socks5() connect to […].onion:8333 failed: general failure
2021-03-03T13:42:17Z Socks5() connect to […].onion:8333 failed: general failure
2021-03-03T13:42:17Z Socks5() connect to […].onion:8333 failed: general failure
2021-03-03T13:42:18Z Socks5() connect to […].onion:8333 failed: general failure
2021-03-03T13:42:18Z Socks5() connect to […].onion:8333 failed: general failure
2021-03-03T13:42:19Z Socks5() connect to […].onion:8333 failed: general failure
2021-03-03T13:42:19Z Socks5() connect to […].onion:8333 failed: general failure
2021-03-03T13:42:20Z Socks5() connect to […].onion:8333 failed: general failure
2021-03-03T13:42:20Z Socks5() connect to […].onion:8333 failed: general failure
…
```
(multiple messages per second, all `[…]` are short v2 onion addresses)

```
$ systemctl status tor
● tor.service - Anonymizing overlay network for TCP
     Loaded: loaded (/etc/systemd/system/tor.service; enabled; vendor preset: enabled)
     Active: active (running) since Wed 2021-03-03 14:45:24 CET; 3min 0s ago
    Process: 158931 ExecStartPre=/opt/tor/bin/tor -f /opt/tor/etc/tor/torrc --verify-config (code=exited, status=0/SUCCESS)
   Main PID: 158962 (tor)
      Tasks: 1 (limit: 9367)
     Memory: 38.4M
     CGroup: /system.slice/tor.service
             └─158962 /opt/tor/bin/tor -f /opt/tor/etc/tor/torrc

Mar 03 14:48:20 tor[158962]: Mar 03 14:48:20.000 [warn] Invalid hostname [scrubbed]; rejecting
Mar 03 14:48:20 tor[158962]: Mar 03 14:48:20.000 [warn] Invalid hostname [scrubbed]; rejecting
Mar 03 14:48:21 tor[158962]: Mar 03 14:48:21.000 [warn] Invalid hostname [scrubbed]; rejecting
Mar 03 14:48:21 tor[158962]: Mar 03 14:48:21.000 [warn] Invalid hostname [scrubbed]; rejecting
Mar 03 14:48:22 tor[158962]: Mar 03 14:48:22.000 [warn] Invalid hostname [scrubbed]; rejecting
Mar 03 14:48:22 tor[158962]: Mar 03 14:48:22.000 [warn] Invalid hostname [scrubbed]; rejecting
Mar 03 14:48:23 tor[158962]: Mar 03 14:48:23.000 [warn] Invalid hostname [scrubbed]; rejecting
Mar 03 14:48:23 tor[158962]: Mar 03 14:48:23.000 [warn] Invalid hostname [scrubbed]; rejecting
Mar 03 14:48:24 tor[158962]: Mar 03 14:48:24.000 [warn] Invalid hostname [scrubbed]; rejecting
Mar 03 14:48:24 tor[158962]: Mar 03 14:48:24.000 [warn] Invalid hostname [scrubbed]; rejecting
```

I'll try to see if I can figure out what it's sending. Tor (current master) is otherwise successfully able to connect to hidden services, at least v3 ones.

Did Tor completely remove v2 support?

```
$ /opt/tor/bin/tor --version
Tor version 0.4.6.0-alpha-dev (git-8020ae02abb105db).
Tor is running on Linux with Libevent 2.1.11-stable, OpenSSL 1.1.1f, Zlib 1.2.11, Liblzma 5.2.4, Libzstd N/A and Glibc 2.31 as libc.
Tor compiled with GCC version 9.3.0
```
{{0xfd,0x87,0xd8,0x7e,0xeb,0x43,0x41,0xce,0x28,0xfc,0xa7,0x16,0x60,0x30,0x0b,0x98}, 8333},
    {{0xfd,0x87,0xd8,0x7e,0xeb,0x43,0x42,0x59,0xa9,0xe2,0xee,0x0f,0xea,0xaa,0x83,0x39}, 8333},
    {{0xfd,0x87,0xd8,0x7e,0xeb,0x43,0x43,0xf6,0xfa,0x52,0x06,0x3d,0x18,0x5c,0xf6,0xd6}, 8333},
    {{0xfd,0x87,0xd8,0x7e,0xeb,0x43,0x44,0x36,0xa2,0x4f,0xfa,0x2e,0xf1,0xa2,0xc5,0xe6}, 8333},
    {{0xfd,0x87,0xd8,0x7e,0xeb,0x43,0x44,0x00,0x69,0xf4,0x4e,0xe0,0xe7,0xf3,0xf8,0xe5}, 8333},
    {{0xfd,0x87,0xd8,0x7e,0xeb,0x43,0x45,0x0d,0x6e,0x69,0x07,0xf1,0xdf,0x18,0x47,0x5e}, 8333},
    {{0xfd,0x87,0xd8,0x7e,0xeb,0x43,0x45,0x4b,0xff,0xf2,0xbc,0x9f,0xd5,0xed,0xa3,0xc3}, 8333},
    {{0xfd,0x87,0xd8,0x7e,0xeb,0x43,0x45,0x4a,0x01,0x0c,0xbf,0x12,0x0d,0xac,0xeb,0x1a}, 8333},
    {{0xfd,0x87,0xd8,0x7e,0xeb,0x43,0x45,0x65,0x71,0xd9,0x54,0xeb,0x8d,0xac,0xa7,0x8b}, 8333},
    {{0xfd,0x87,0xd8,0x7e,0xeb,0x43,0x45,0xec,0x68,0x9c,0x0a,0x5d,0x69,0xc3,0x79,0xdf}, 8333},
    {{0xfd,0x87,0xd8,0x7e,0xeb,0x43,0x46,0x7b,0xe6,0x39,0xde,0x62,0x9f,0xb3,0x7e,0xee}, 8333},
    {{0xfd,0x87,0xd8,0x7e,0xeb,0x43,0x4e,0x84,0xfe,0xb2,0x96,0xea,0x76,0xba,0x30,0x57}, 8333},
    {{0xfd,0x87,0xd8,0x7e,0xeb,0x43,0x4e,0x97,0x15,0x46,0xd4,0x32,0xc7,0x62,0x5a,0xd2}, 8333},
    {{0xfd,0x87,0xd8,0x7e,0xeb,0x43,0x4e,0xa1,0x36,0x28,0x7a,0x18,0x02,0xb9,0x4b,0x3c}, 8333},
    {{0xfd,0x87,0xd8,0x7e,0xeb,0x43,0x4f,0x49,0xac,0x50,0x0d,0xef,0xeb,0xa3,0xf4,0x8b}, 8333},
    {{0xfd,0x87,0xd8,0x7e,0xeb,0x43,0x4f,0x52,0x58,0x8e,0x67,0x84,0xfa,0x6d,0x76,0xf9}, 8333},
    {{0xfd,0x87,0xd8,0x7e,0xeb,0x43,0x4f,0x56,0xad,0x52,0xba,0x0c,0x9e,0x58,0x5c,0xaa}, 8333},
    {{0xfd,0x87,0xd8,0x7e,0xeb,0x43,0x48,0x1b,0x5a,0xe6,0x4c,0xc8,0xa4,0x9d,0x95,0x0b}, 8333},
    {{0xfd,0x87,0xd8,0x7e,0xeb,0x43,0x49,0x1a,0xdd,0x4d,0x98,0x5e,0xef,0x70,0x45,0x90}, 8333},
    {{0xfd,0x87,0xd8,0x7e,0xeb,0x43,0x49,0x5c,0x4e,0x97,0x52,0x16,0x5c,0x92,0xbf,0x7a}, 8333},
    {{0xfd,0x87,0xd8,0x7e,0xeb,0x43,0x49,0x84,0x64,0x79,0x5a,0x7d,0xdc,0xe4,0x76,0x1b}, 8333},
    {{0xfd,0x87,0xd8,0x7e,0xeb,0x43,0x49,0xc0,0xd0,0x6b,0x92,0xd8,0xf2,0xa4,0x4f,0x2f}, 8333},
    {{0xfd,0x87,0xd8,0x7e,0xeb,0x43,0x4a,0x26,0x6a,0x2c,0x3a,0xe3,0x2a,0x58,0x44,0x66}, 8333},
    {{0xfd,0x87,0xd8,0x7e,0xeb,0x43,0x4a,0x69,0x5b,0x05,0x25,0xca,0xd2,0xc6,0xfe,0x7b}, 8333},
    {{0xfd,0x87,0xd8,0x7e,0xeb,0x43,0x4a,0xc4,0x57,0x30,0xd1,0xed,0xca,0x4b,0x81,0x05}, 8333},
    {{0xfd,0x87,0xd8,0x7e,0xeb,0x43,0x4a,0xc8,0x79,0x7b,0x01,0x0e,0xbd,0x05,0xb5,0xa0}, 8333},
    {{0xfd,0x87,0xd8,0x7e,0xeb,0x43,0x4a,0xd3,0x9c,0xf2,0x6c,0x0c,0x23,0x78,0x6e,0x1d}, 8333},
    {{0xfd,0x87,0xd8,0x7e,0xeb,0x43,0x4b,0x85,0xc7,0x40,0x44,0x20,0xd4,0x6f,0xfe,0xa5}, 8333},
    {{0xfd,0x87,0xd8,0x7e,0xeb,0x43,0x4c,0x7b,0x8f,0x35,0x34,0x08,0x83,0x5f,0x1b,0x7f}, 8333},
    {{0xfd,0x87,0xd8,0x7e,0xeb,0x43,0x4c,0x5c,0x07,0x4b,0xcb,0x07,0x2a,0x82,0x1d,0xdc}, 8333},