Build fails on OSX Timestamp

[vbisbest]

Getting this error building:
FAILED: /bin/bash out/target/common/docs/system-api-stubs-timestamp.rsp
out/target/common/docs/system-api-stubs-timestamp.rsp: line 1: 21391 Killed javadoc -encoding UTF-8 @out/target/common/obj/JAVA_LIBRARIES/system-api-stubs_intermediates/droiddoc-src-list -J-Xmx1600m -XDignore.symbol.file -quiet -doclet com.google.doclava.Doclava -docletpath out/host/linux-x86/framework/jsilver.jar:out/host/linux-x86/framework/doclava.jar -templatedir build/tools/droiddoc/templates-sdk -htmldir frameworks/base/docs/html -bootclasspath out/target/common/obj/JAVA_LIBRARIES/core-oj_intermediates/classes.jar:out/target/common/obj/JAVA_LIBRARIES/core-libart_intermediates/classes.jar -classpath out/target/common/obj/JAVA_LIBRARIES/bouncycastle_intermediates/classes.jar:out/target/common/obj/JAVA_LIBRARIES/conscrypt_intermediates/classes.jar:out/target/common/obj/JAVA_LIBRARIES/core-libart_intermediates/classes.jar:out/target/common/obj/JAVA_LIBRARIES/core-oj_intermediates/classes.jar:out/target/common/obj/JAVA_LIBRARIES/ext_intermediates/classes.jar:out/target/common/obj/JAVA_LIBRARIES/framework_intermediates/classes.jar:out/target/common/obj/JAVA_LIBRARIES/icu4j_intermediates/classes.jar:out/target/common/obj/JAVA_LIBRARIES/okhttp_intermediates/classes.jar:out/target/common/obj/JAVA_LIBRARIES/telephony-common_intermediates/classes.jar:out/target/common/obj/JAVA_LIBRARIES/voip-common_intermediates/classes.jar: -sourcepath frameworks/base/core/java:frameworks/base/graphics/java:frameworks/base/location/java:frameworks/base/media/java:frameworks/base/media/mca/effect/java:frameworks/base/media/mca/filterfw/java:frameworks/base/media/mca/filterpacks/java:frameworks/base/drm/java:frameworks/base/opengl/java:frameworks/base/sax/java:frameworks/base/telecomm/java:frameworks/base/telephony/java:frameworks/base/wifi/java:frameworks/base/keystore/java:frameworks/base/rs/java:out/target/common/obj/JAVA_LIBRARIES/bouncycastle_intermediates/classes.jar:out/target/common/obj/JAVA_LIBRARIES/conscrypt_intermediates/classes.jar:out/target/common/obj/JAVA_LIBRARIES/core-libart_intermediates/classes.jar:out/target/common/obj/JAVA_LIBRARIES/core-oj_intermediates/classes.jar:out/target/common/obj/JAVA_LIBRARIES/ext_intermediates/classes.jar:out/target/common/obj/JAVA_LIBRARIES/framework_intermediates/classes.jar:out/target/common/obj/JAVA_LIBRARIES/icu4j_intermediates/classes.jar:out/target/common/obj/JAVA_LIBRARIES/okhttp_intermediates/classes.jar:out/target/common/obj/JAVA_LIBRARIES/telephony-common_intermediates/classes.jar:out/target/common/obj/JAVA_LIBRARIES/voip-common_intermediates/classes.jar: -d out/target/common/docs/system-api-stubs -hdf page.build NZH54D-$(cat out/build_number.txt) -hdf page.now "$(date -d @$(cat out/build_date.txt) "+%d %b %Y %k:%M")" -knowntags ./frameworks/base/docs/knowntags.txt -knowntags ./libcore/known_oj_tags.txt -hidePackage com.android.org.conscrypt -since prebuilts/sdk/api/1.xml 1 -since prebuilts/sdk/api/2.xml 2 -since prebuilts/sdk/api/3.xml 3 -since prebuilts/sdk/api/4.xml 4 -since prebuilts/sdk/api/5.xml 5 -since prebuilts/sdk/api/6.xml 6 -since prebuilts/sdk/api/7.xml 7 -since prebuilts/sdk/api/8.xml 8 -since prebuilts/sdk/api/9.xml 9 -since prebuilts/sdk/api/10.xml 10 -since prebuilts/sdk/api/11.xml 11 -since prebuilts/sdk/api/12.xml 12 -since prebuilts/sdk/api/13.xml 13 -since prebuilts/sdk/api/14.txt 14 -since prebuilts/sdk/api/15.txt 15 -since prebuilts/sdk/api/16.txt 16 -since prebuilts/sdk/api/17.txt 17 -since prebuilts/sdk/api/18.txt 18 -since prebuilts/sdk/api/19.txt 19 -since prebuilts/sdk/api/20.txt 20 -since prebuilts/sdk/api/21.txt 21 -since prebuilts/sdk/api/22.txt 22 -since prebuilts/sdk/api/23.txt 23 -since prebuilts/sdk/api/24.txt 24 -since prebuilts/sdk/api/25.txt 25 -werror -hide 111 -hide 113 -overview frameworks/base/core/java/overview.html -hdf sdk.codename N -hdf sdk.preview.version 5 -hdf sdk.version 7.0 -hdf sdk.rel.id 1 -hdf sdk.preview 0 -referenceonly -showAnnotation android.annotation.SystemApi -api out/target/common/obj/PACKAGING/system-api.txt -removedApi out/target/common/obj/PACKAGING/system-removed.txt -nodocs -stubs out/target/common/obj/JAVA_LIBRARIES/android_system_stubs_current_intermediates/src
[ 6% 2234/35163] Docs droiddoc: out/target/common/docs/api-stubs
FAILED: /bin/bash out/target/common/docs/api-stubs-timestamp.rsp

Any ideas?