Build failure (and question about discussion channel)

[kination]

Describe the bug Build is not working with build/gimel install -T 8 -B in MacOS (Java 1.8)

Screenshots

[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO]
[INFO] Gimel Data API 2.0.0-SNAPSHOT ...................... SUCCESS [  2.134 s]
[INFO] gimel-logging 0.4.3-SNAPSHOT ....................... SUCCESS [  7.891 s]
[INFO] gimel-logging_2.2 0.4.3-SNAPSHOT ................... SUCCESS [ 15.038 s]
[INFO] gimel-logging_2.3 0.4.3-SNAPSHOT ................... SUCCESS [ 14.995 s]
[INFO] Gimel Data API 2.0.0-SNAPSHOT ...................... SUCCESS [  1.108 s]
[INFO] gimel-logger 2.0.0-SNAPSHOT ........................ SUCCESS [  3.548 s]
[INFO] gimel-serde 1.0-SNAPSHOT ........................... SUCCESS [  1.143 s]
[INFO] serde-common 1.0-SNAPSHOT .......................... SUCCESS [01:17 min]
[INFO] gimel-parser 2.0.0-SNAPSHOT ........................ SUCCESS [  4.381 s]
[INFO] gimel-common 2.0.0-SNAPSHOT ........................ SUCCESS [03:02 min]
[INFO] gimel-sftp 2.0.0-SNAPSHOT .......................... SKIPPED
[INFO] gimel-bigquery 2.0.0-SNAPSHOT ...................... SKIPPED
[INFO] gimel-elasticsearch-6.2 2.0.0-SNAPSHOT ............. SKIPPED
[INFO] gimel-jdbc 2.0.0-SNAPSHOT .......................... SKIPPED
[INFO] gimel-hive-1.2 2.0.0-SNAPSHOT ...................... SKIPPED
[INFO] gimel-hbase-1.2 2.0.0-SNAPSHOT ..................... SKIPPED
[INFO] gimel-cassandra-2.0 2.0.0-SNAPSHOT ................. SKIPPED
[INFO] gimel-aerospike-3.14 2.0.0-SNAPSHOT ................ SKIPPED
[INFO] gimel-kafka-0.10 2.0.0-SNAPSHOT .................... SKIPPED
[INFO] gimel-kafka-2.2 2.0.0-SNAPSHOT ..................... SKIPPED
[INFO] gimel-druid-0.82 2.0.0-SNAPSHOT .................... SKIPPED
[INFO] gimel-restapi 2.0.0-SNAPSHOT ....................... SKIPPED
[INFO] gimel-s3 2.0.0-SNAPSHOT ............................ SKIPPED
[INFO] gimel-core 2.0.0-SNAPSHOT .......................... SKIPPED
[INFO] gimel-sql 2.0.0-SNAPSHOT ........................... SKIPPED
[INFO] gimel-tools 2.0.0-SNAPSHOT ......................... SKIPPED
[INFO] gimel-examples 2.0.0-SNAPSHOT ...................... SKIPPED
[INFO] generic-deserializers 1.0-SNAPSHOT ................. FAILURE [  5.108 s]
[INFO] generic-serializers 1.0-SNAPSHOT ................... FAILURE [  7.411 s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  04:48 min (Wall Clock)
[INFO] Finished at: 2021-02-10T20:55:00+09:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.scalatest:scalatest-maven-plugin:1.0:test (test) on project generic-deserializers: There are test failures -> [Help 1]
[ERROR] Failed to execute goal org.scalatest:scalatest-maven-plugin:1.0:test (test) on project generic-serializers: There are test failures -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
[ERROR]
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR]   mvn <args> -rf :generic-deserializers
20210210 20:55:00 | Error | Stage | mvn install install

Also slack channel seems disappeared...are there other one?