Hmm, I've noticed a file named resolver-status.properties is created in
~/.m2/repository/org/clojure/clojure/1.7.0-master-SNAPSHOT with the following contents:
#NOTE: This is an internal implementation file, its format can be changed without prior notice.
#Sat Feb 28 21:45:36 GMT 2015
maven-metadata-clojars.xml.error=
maven-metadata-snapshots.xml.error=Could not transfer metadata org.clojure\:clojure\:1.7.0-master-SNAPSHOT/maven-metadata.xml from/to snapshots (https\://oss.sonatype.org/content/repositories/snapshots/)\: Checksum validation failed, expected 5c88ee9a5d32a33ad7d16246ec3363fc98631b0a but is c20a0181e802635cf0d33d59a244204188d5e1a5 maven-metadata-clojars.xml.lastUpdated=1425159935986
SHA1(maven-metadata.xml)= c20a0181e802635cf0d33d59a244204188d5e1a5
5c88ee9a5d32a33ad7d16246ec3363fc98631b0a
Which makes it seem like an issue with the deployed artifact/metadata? I'm not really sure why it's working for you but not me!
Thanks,
Michael