kaniko cannot use scratch multi-stage build image

[iCloudBot]

When building a multi-stage image, it is always stuck in the previous step FROM scratch, and is always in Take snapshot of full filesystem... Saving file . for later use, unable to proceed to subsequent steps.
It cannot copy the entire root directory

My Dockerfile

FROM amazonlinux:2 as base

ADD openjdk-14.0.1_linux-x64_bin.tar.gz /usr/local

RUN yum upgrade -y && \
    yum install -y glibc-langpack-zh shadow-utils && \
    useradd -ml devops -u 10000 -s /sbin/nologin && \
    yum remove -y shadow-utils && \
    yum clean all

FROM scratch
COPY --from=base / /

ENV LANG=zh_CN.UTF-8 \
    LC_ALL=zh_CN.UTF-8 \
    LANGUAGE=zh_CN.UTF-8 \
    JAVA_HOME=/usr/local/jdk-14.0.1
ENV PATH=$JAVA_HOME/bin:$PATH

CMD ["java", "-version"]

[plachta11b]

Arent you missing AS keyword in the base image stage? It should be probably FROM amazonlinux:2 AS base to make it work.

[iCloudBot]

Arent you missing AS keyword in the base image stage? It should be probably FROM amazonlinux:2 AS base to make it work.

I'm sorry for missing the as base critical step, the Dockerfile contents have been updated, but still the image build is not successful. The build log looks like this:
error building image: could not save file: copying file: open /kaniko/0/kaniko/....../0/kaniko/0/etc/pki/ca-trust/extracted/openssl/ca-bundle.trust.crt: file name too long

[aaron-prindle]

This is likely a dupe of:
#2210

(also seems related to)
#2033