Run of fresh-snapshots for volume-key

Try this locally (using the lintian-brush package):

debcheckout volume-key
cd volume-key
new-upstream --snapshot
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E: Failed to fetch http://deb.debian.org/debian/pool/main/n/nss/libnss3_3.66-1_amd64.deb  500  Service Not Found [IP: 151.101.38.132 80]
E: Failed to fetch http://deb.debian.org/debian/pool/main/n/nss/libnss3-dev_3.66-1_amd64.deb  500  Service Not Found [IP: 151.101.38.132 80]
E: Failed to fetch http://deb.debian.org/debian/pool/main/n/nss/libnss3-tools_3.66-1_amd64.deb  500  Service Not Found [IP: 151.101.38.132 80]
E: Failed to fetch http://deb.debian.org/debian/pool/main/p/python3.9/libpython3.9_3.9.2-1_amd64.deb  500  Service Not Found [IP: 151.101.38.132 80]
E: Failed to fetch http://deb.debian.org/debian/pool/main/p/python3.9/libpython3.9-dev_3.9.2-1_amd64.deb  500  Service Not Found [IP: 151.101.38.132 80]
E: Failed to fetch http://deb.debian.org/debian/pool/main/p/python3-defaults/libpython3-dev_3.9.2-3_amd64.deb  500  Service Not Found [IP: 151.101.38.132 80]
E: Failed to fetch http://deb.debian.org/debian/pool/main/c/cyrus-sasl2/libsasl2-modules_2.1.27+dfsg-2.1_amd64.deb  500  Service Not Found [IP: 151.101.38.132 80]
E: Failed to fetch http://deb.debian.org/debian/pool/main/p/publicsuffix/publicsuffix_20210108.1309-1_all.deb  500  Service Not Found [IP: 151.101.38.132 80]
E: Failed to fetch http://deb.debian.org/debian/pool/main/p/python3.9/python3.9-dev_3.9.2-1_amd64.deb  500  Service Not Found [IP: 151.101.38.132 80]
E: Failed to fetch http://deb.debian.org/debian/pool/main/p/python3-defaults/python3-dev_3.9.2-3_amd64.deb  500  Service Not Found [IP: 151.101.38.132 80]
E: Failed to fetch http://deb.debian.org/debian/pool/main/s/shared-mime-info/shared-mime-info_2.0-1_amd64.deb  500  Service Not Found [IP: 151.101.38.132 80]
E: Failed to fetch http://deb.debian.org/debian/pool/main/s/swig/swig4.0_4.0.2-1_amd64.deb  500  Service Not Found [IP: 151.101.38.132 80]
E: Failed to fetch http://deb.debian.org/debian/pool/main/s/swig/swig_4.0.2-1_all.deb  500  Service Not Found [IP: 151.101.38.132 80]
E: Failed to fetch http://deb.debian.org/debian/pool/main/x/xdg-user-dirs/xdg-user-dirs_0.17-2_amd64.deb  500  Service Not Found [IP: 151.101.38.132 80]
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?
E: Failed to process build dependencies

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