autopkgtest fails due to netcat-openbsd prints connection info on stderr

[Shengjing Zhu]

https://autopkgtest.ubuntu.com/results/autopkgtest-mantic/mantic/amd64/d/davmail/20230801_081825_da2e8@/log.gz

260s autopkgtest [08:18:03]: test binary-starts: [-----------------------
261s 2023-08-01 08:18:03,408 DEBUG [main] davmail.DavGateway - Start DavMail in server mode
261s 2023-08-01 08:18:03,443 INFO [main] davmail - DavMail Gateway 6.1.0-trunk listening on SMTP port 1025 POP port 1110 IMAP port 1143 CALDAV port 1080 LDAP port 1389
270s Connection to localhost (::1) 1025 port [tcp/*] succeeded!
270s 2023-08-01 08:18:13,251 DEBUG [davmail.smtp.SmtpServer] davmail - Connection from /0:0:0:0:0:0:0:1 on port 1025
270s 2023-08-01 08:18:13,253 INFO [davmail.smtp.SmtpServer] davmail.connection - CONNECT - 0:0:0:0:0:0:0:1:39534
270s 2023-08-01 08:18:13,254 DEBUG [Shutdown] davmail - Stopping DavMail gateway
270s 2023-08-01 08:18:13,256 INFO [davmail.smtp.SmtpServer] davmail.connection - DISCONNECT - 0:0:0:0:0:0:0:1:39534
271s autopkgtest [08:18:14]: test binary-starts: -----------------------]
271s autopkgtest [08:18:14]: test binary-starts: - - - - - - - - - - results - - - - - - - - - -
271s binary-starts FAIL stderr: Connection to localhost (::1) 1025 port [tcp/*] succeeded!
271s autopkgtest [08:18:14]: test binary-starts: - - - - - - - - - - stderr - - - - - - - - - -

[Shengjing Zhu (zhsj)]

ganglia log
https://autopkgtest.ubuntu.com/results/autopkgtest-mantic/mantic/amd64/g/ganglia/20230803_081044_51469@/log.gz

124s autopkgtest [08:10:31]: test gmetad: [-----------------------
124s Connection to 127.0.0.1 8651 port [tcp/*] succeeded!
124s OK
124s autopkgtest [08:10:31]: test gmetad: -----------------------]
125s gmetad FAIL stderr: Connection to 127.0.0.1 8651 port [tcp/*] succeeded!
125s autopkgtest [08:10:32]: test gmetad: - - - - - - - - - - results - - - - - - - - - -
125s autopkgtest [08:10:32]: test gmetad: - - - - - - - - - - stderr - - - - - - - - - -

[Shengjing Zhu (zhsj)]

With netcat-openbsd 1.219-1ubuntu1

ubuntu@ubuntu-devel:~$ nc.openbsd -z 127.0.0.1 22
ubuntu@ubuntu-devel:~$

It prints nothing.

With netcat-openbsd 1.225-1ubuntu1

$ nc.openbsd -z 127.0.0.1 22
Connection to 127.0.0.1 22 port [tcp/ssh] succeeded!
ubuntu@ubuntu-devel:~$

It prints info on stderr.

[Shengjing Zhu (zhsj)]

caused by https://salsa.debian.org/debian/netcat-openbsd/-/commit/2f5a8bea5f84847ee36a90e59f585b5cb3c07537

[Launchpad Janitor (janitor)]

This bug was fixed in the package davmail - 6.1.0.3423-4

---------------
davmail (6.1.0.3423-4) unstable; urgency=medium

  * autopkgtest: use specific version of netcat (Closes: #1043143, LP: #2029465)

 -- Alexandre Rossi <email address hidden> Mon, 07 Aug 2023 08:25:04 +0200

[Graham Inggs (ginggs)]

autopkgtest is now passing

davmail (6.1.0.3423-5) unstable; urgency=medium

  * autopkgtest: make sure that test server has stopped before test script exit
  * autopkgtest: force use of nc.traditional
  * use upstream memory jvm options (Closes: #1052033)

 -- Alexandre Rossi <email address hidden> Tue, 19 Sep 2023 13:46:43 +0200