===> License MIT accepted by the user ===> erlang-backoff-0cipiertest depends on file: /usr/local/sbin/pkg - found ===> Fetching all distfiles required by erlang-backoff-0cipiertest for building ===> Extracting for erlang-backoff-0cipiertest => SHA256 Checksum OK for ferd-backoff-0cipiertest_GH0.tar.gz. ===> Patching for erlang-backoff-0cipiertest ===> erlang-backoff-0cipiertest depends on executable: erl - found ===> erlang-backoff-0cipiertest depends on package: rebar3>=0 - found ===> Configuring for erlang-backoff-0cipiertest ===> Building for erlang-backoff-0cipiertest ===> Package rebar3_proper-0.7.2 not found. Fetching registry updates and trying again... ===> Updating package registry... ===> Plugin {rebar3_proper,"0.7.2"} not available. It will not be used. ===> Package rebar3_proper-0.7.2 not found. Fetching registry updates and trying again... ===> Updating package registry... ===> Plugin {rebar3_proper,"0.7.2"} not available. It will not be used. ===> Package rebar3_proper-0.7.2 not found. Fetching registry updates and trying again... ===> Updating package registry... ===> Plugin {rebar3_proper,"0.7.2"} not available. It will not be used. ===> Verifying dependencies... ===> Compiling backoff 0