Update changelog for 2:6.0.0+dfsg-1 (experimental)

Signed-off-by: Jongmin Kim <jmkim@pukyong.ac.kr>
8 jobs for transition-to-6 in 3 minutes and 48 seconds (queued for 9 seconds)
latest
Status Job ID Name Coverage
  Build
failed #289930
build

00:03:48

 
  Test
skipped #289935
autopkgtest
skipped #289936
blhc
skipped #289934
lintian
skipped #289937
piuparts
skipped #289933
reprotest
skipped #289932
test-build-all
skipped #289931
test-build-any
 
Name Stage Failure
failed
build Build
dpkg-buildpackage: warning: (Use -d flag to override.)
+ cleanup
+ docker rm -f 482448295f2f0f4836b83354aba668656af40137dd731610265d6737a1a4b29f
482448295f2f0f4836b83354aba668656af40137dd731610265d6737a1a4b29f
gbp:error: 'docker-build.sh registry.salsa.debian.org/salsa-ci-team/pipeline/dockerbuilder:unstable ' failed: it exited with 1
Uploading artifacts...
/builds/ruby-team/rails/debian/output/: found 5223 matching files
Uploading artifacts to coordinator... ok
id=289930 responseStatus=201 Created token=gYX5bKDF
ERROR: Job failed: exit code 1