Found 5.5.1 via distributionUrl
Running /opt/gradle/versions/5.5.1/bin/gradle assembleRelease
> Task :preBuild UP-TO-DATE
> Task :preReleaseBuild
> Task :compileReleaseAidl NO-SOURCE
> Task :compileReleaseRenderscript NO-SOURCE
> Task :checkReleaseManifest
> Task :generateReleaseBuildConfig
> Task :prepareLintJar
> Task :generateReleaseSources
> Task :javaPreCompileRelease
> Task :mainApkListPersistenceRelease
> Task :generateReleaseResValues
> Task :generateReleaseResources
> Task :mergeReleaseResources
> Task :createReleaseCompatibleScreenManifests
> Task :processReleaseManifest
> Task :processReleaseResources

> Task :compileReleaseJavaWithJavac
/home/vagrant/build/net.minetest.minetest/build/android/src/main/java/net.minetest.minetest/MinetestAssetCopy.java:99: error: non-static method getAssets() cannot be referenced from a static context
				InputStream src = getAssets().open(filename);
				                  ^
/home/vagrant/build/net.minetest.minetest/build/android/src/main/java/net.minetest.minetest/MinetestAssetCopy.java:156: error: non-static variable m_ProgressBar cannot be referenced from a static context
			m_ProgressBar.setMax(m_tocopy.size());
			^
/home/vagrant/build/net.minetest.minetest/build/android/src/main/java/net.minetest.minetest/MinetestAssetCopy.java:177: error: non-static method getAssets() cannot be referenced from a static context
						src = getAssets().open(filename);
						      ^
/home/vagrant/build/net.minetest.minetest/build/android/src/main/java/net.minetest.minetest/MinetestAssetCopy.java:204: error: non-static method getAssets() cannot be referenced from a static context
							src = getAssets().open(filename);
							      ^
/home/vagrant/build/net.minetest.minetest/build/android/src/main/java/net.minetest.minetest/MinetestAssetCopy.java:254: error: non-static variable m_ProgressBar cannot be referenced from a static context
				m_ProgressBar.setProgress(progress[0]);
				^
/home/vagrant/build/net.minetest.minetest/build/android/src/main/java/net.minetest.minetest/MinetestAssetCopy.java:255: error: non-static variable m_Filename cannot be referenced from a static context
				m_Filename.setText(todisplay);
				^
/home/vagrant/build/net.minetest.minetest/build/android/src/main/java/net.minetest.minetest/MinetestAssetCopy.java:260: error: non-static variable m_Filename cannot be referenced from a static context
				m_Filename.setText(full_text);
				^
/home/vagrant/build/net.minetest.minetest/build/android/src/main/java/net.minetest.minetest/MinetestAssetCopy.java:307: error: non-static method getAssets() cannot be referenced from a static context
						AssetFileDescriptor fd = getAssets().openFd(current_path);
						                         ^
/home/vagrant/build/net.minetest.minetest/build/android/src/main/java/net.minetest.minetest/MinetestAssetCopy.java:336: error: non-static method getAssets() cannot be referenced from a static context
				InputStream is = getAssets().open("index.txt");
				                 ^
/home/vagrant/build/net.minetest.minetest/build/android/src/main/java/net.minetest.minetest/MinetestAssetCopy.java:357: error: non-static method getAssets() cannot be referenced from a static context
				InputStream is = getAssets().open("filelist.txt");
				                 ^
/home/vagrant/build/net.minetest.minetest/build/android/src/main/java/net.minetest.minetest/MinetestAssetCopy.java:374: error: non-static method finish() cannot be referenced from a static context
			finish();
			^
Note: /home/vagrant/build/net.minetest.minetest/build/android/src/main/java/net.minetest.minetest/MinetestAssetCopy.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
11 errors

> Task :compileReleaseJavaWithJavac FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':compileReleaseJavaWithJavac'.
> 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 6.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/5.5.1/userguide/command_line_interface.html#sec:command_line_warnings

BUILD FAILED in 9s
12 actionable tasks: 12 executed
Makefile:687: recipe for target 'apk' failed
make[1]: *** [apk] Error 1
make[1]: Leaving directory '/home/vagrant/build/net.minetest.minetest/build/android'
Makefile:156: recipe for target 'release' failed
make: *** [release] Error 2
==== detail end ====
DEBUG: Error encoutered, stopping by user request.