Gitlab Docker Build Failed but Pipeline is OK

Running with gitlab-runner 13.3.1 (738bbe5a)
  on ip-10-10-200-228 r6wZ2uat
section_start:1599476424:prepare_executor
Preparing the "shell" executor
Using Shell executor...
section_end:1599476424:prepare_executor
section_start:1599476424:prepare_script
Preparing environment
Running on ip-10-10-200-228...
section_end:1599476424:prepare_script
section_start:1599476424:get_sources
Getting source from Git repository
Fetching changes with git depth set to 50...
Reinitialized existing Git repository in /home/gitlab-runner/builds/r6wZ2uat/0/syslit/BE/.git/
Checking out 4ebcdecb as master...
Skipping Git submodules setup
section_end:1599476426:get_sources
section_start:1599476426:download_artifacts
Downloading artifacts
Downloading artifacts for generateDbObjects (724500662)...
Runtime platform                                    arch=amd64 os=linux pid=14921 revision=738bbe5a version=13.3.1
Downloading artifacts from coordinator... ok        id=724500662 responseStatus=200 OK token=A23wzJxP
Downloading artifacts for prepareConfigs (724500665)...
Runtime platform                                    arch=amd64 os=linux pid=14928 revision=738bbe5a version=13.3.1
Downloading artifacts from coordinator... ok        id=724500665 responseStatus=200 OK token=gJYpnHMC
section_end:1599476428:download_artifacts
section_start:1599476428:step_script
Executing "step_script" stage of the job script
$ ./factory/buildAndPush.sh web
WARNING! Your password will be stored unencrypted in /home/gitlab-runner/.docker/config.json.
Configure a credential helper to remove this warning. See
https://docs.docker.com/engine/reference/commandline/login/#credentials-store

Login Succeeded
latest: Pulling from backend/web
Digest: sha256:ba49e2680bab2406f5848d769fee4dd3aa1f7568ba138b3ad925db208e257ae8
Status: Image is up to date for xxx/backend/web:latest
xxx/backend/web:latest
Sending build context to Docker daemon  33.23MB

Step 1/7 : FROM openjdk:14-slim
 ---> 8043e126a68b
Step 2/7 : COPY . /app
 ---> 7a83ca009baf
Step 3/7 : WORKDIR /app
 ---> Running in 0624c5481864
Removing intermediate container 0624c5481864
 ---> b30ac1c1d5c5
Step 4/7 : RUN  ls
 ---> Running in 96877dbab5f5
README.md
build.gradle
crunch
db
docker
es
factory
fetch
gradle
gradlew
gradlew.bat
services
settings.gradle
watchdog
web
Removing intermediate container 96877dbab5f5
 ---> 091b2510f86a
Step 5/7 : RUN ./gradlew clean bootJar -p web
 ---> Running in 5167a2d09bbb
Downloading https://services.gradle.org/distributions/gradle-6.3-all.zip
..........................................................................................................................................

Welcome to Gradle 6.3!

Here are the highlights of this release:
 - Java 14 support
 - Improved error messages for unexpected failures

For more details see https://docs.gradle.org/6.3/release-notes.html

Starting a Gradle Daemon (subsequent builds will be faster)
> Task :web:clean UP-TO-DATE

> Task :db:generateDbObjects
Generating db objects...
JAVA_HOME is /usr/local/openjdk-14
/app/db/gradle-local.properties found
org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 72; cvc-elt.1.a: Cannot find the declaration of element 'configuration'.
...done generating db objects.

> Task :db:compileJava
Note: /app/db/src/main/java/net/syslit/db/web/Sequences.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.

> Task :db:processResources
> Task :db:classes
> Task :db:jar

> Task :services:compileJava
warning: unknown enum constant When.MAYBE
  reason: class file for javax.annotation.meta.When not found
warning: unknown enum constant When.MAYBE
  reason: class file for javax.annotation.meta.When not found
warning: unknown enum constant When.MAYBE
  reason: class file for javax.annotation.meta.When not found
/app/services/src/main/java/net/syslit/dao/JobLockingDao.java:8: error: cannot find symbol
public class JobLockingDao extends AbstractDao {
                                   ^
  symbol: class AbstractDao
/app/services/src/main/java/net/syslit/dao/IncomingDao.java:14: error: cannot find symbol
public class IncomingDao extends AbstractDao {
                                 ^
  symbol: class AbstractDao
/app/services/src/main/java/net/syslit/dao/ConfigParamDao.java:14: error: cannot find symbol
public class ConfigParamDao extends AbstractDao {
                                    ^
  symbol: class AbstractDao
/app/services/src/main/java/net/syslit/dao/LocalitiesDao.java:15: error: cannot find symbol
public class LocalitiesDao extends AbstractDao {
                                   ^
  symbol: class AbstractDao
/app/services/src/main/java/net/syslit/dao/SimilaritiesDao.java:18: error: cannot find symbol
public class SimilaritiesDao extends AbstractDao {
                                     ^
  symbol: class AbstractDao
/app/services/src/main/java/net/syslit/dao/ListingDao.java:18: error: cannot find symbol
public class ListingDao extends AbstractDao {
                                ^
  symbol: class AbstractDao
warning: unknown enum constant When.MAYBE
  reason: class file for javax.annotation.meta.When not found
Note: Some input files use preview language features.
Note: Recompile with -Xlint:preview for details.
6 errors
4 warnings

> Task :services:compileJava FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':services:compileJava'.
> Compilation failed; see the compiler error output for details.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

Deprecated Gradle features were used in this build, making it incompatible with Gradle 7.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/6.3/userguide/command_line_interface.html#sec:command_line_warnings

BUILD FAILED in 55s
6 actionable tasks: 5 executed, 1 up-to-date
The command '/bin/sh -c ./gradlew clean bootJar -p web' returned a non-zero code: 1
The push refers to repository [xxx/backend/web]
tag does not exist: xxx/backend/web:4ebcdecb348c
The push refers to repository [xxx/backend/web]
65e57cb0588c: Preparing
2edcf6c27151: Preparing
8ef48689a1b2: Preparing
6a95470659de: Preparing
a309b0b82650: Preparing
95c20fa5728d: Preparing
d0f104dc0a1f: Preparing
95c20fa5728d: Waiting
d0f104dc0a1f: Waiting
2edcf6c27151: Layer already exists
65e57cb0588c: Layer already exists
a309b0b82650: Layer already exists
8ef48689a1b2: Layer already exists
6a95470659de: Layer already exists
95c20fa5728d: Layer already exists
d0f104dc0a1f: Layer already exists
latest: digest: sha256:ba49e2680bab2406f5848d769fee4dd3aa1f756awwaad925db208e257ae8 size: 1798
section_end:1599476489:step_script
Job succeeded