Unable to push docker image to ECR

I am executing the data prep notebook and I am anot able to push the docker image to ECR> I see the repository is created, but docker push {ACCT_ID}.dkr.ecr.us-east-1.amazonaws.com/tfrecord-processing:20230117052830 is resulting in no image. There are no errors, except following output during the build process. Please let me know what I am missing.
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Warning: apt-key output should not be parsed (stdout is not a terminal)
Executing: /tmp/apt-key-gpghome.bP4qnyx72c/gpg.1.sh --fetch-keys https://developer.download.nvidia.com/compute/cuda/repos/ubuntu1804/x86_64/3bf863cc.pub
gpg: requesting key from 'https://developer.download.nvidia.com/compute/cuda/repos/ubuntu1804/x86_64/3bf863cc.pub'
gpg: key A4B469963BF863CC: "cudatools " not changed
gpg: Total number processed: 1
gpg: unchanged: 1
Removing intermediate container 8943c108f872
---> 65c8e1bb6ac0
Step 6/11 : RUN apt-key adv --fetch-keys https://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1804/x86_64/7fa2af80.pub
---> Running in 3ac2c68c3ebb
Warning: apt-key output should not be parsed (stdout is not a terminal)
Executing: /tmp/apt-key-gpghome.5CRPhlFuUM/gpg.1.sh --fetch-keys https://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1804/x86_64/7fa2af80.pub
gpg: requesting key from 'https://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1804/x86_64/7fa2af80.pub'
gpg: key F60F4B3D7FA2AF80: public key "cudatools " imported
gpg: Total number processed: 1
gpg: imported: 1