when I test callhome, "double free or corruption (!prev)" happen!!!

[yongfeng-liu]

HI:
when I test callhome function, I met this problem:

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listen
Waiting 60s for an SSH Call Home connection on port 4334...
The authenticity of the host '::ffff:127.0.0.1' cannot be established.
ssh-rsa key fingerprint is 8c:e5:df:c4:84:c9:76:f1:71:2a:0a:d5:4a:83:bd:5d:b5:5b:7c:54.
Are you sure you want to continue connecting (yes/no)? yes
nc ERROR: Request authentication methods timeout.
double free or corruption (!prev)
已放弃 (核心已转储)

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The version of netconf-cli is:

version
Netopeer2 CLI 2.0.52
Compile time: Aug 12 2019, 15:59:24