Failed to download https://github.com/technomancy/leiningen/
releases/download/2.5.0/leiningen-2.5.0-standalone.jar
(exit code 141) It's possible your HTTP client's certificate store does not
have the correct certificate authority needed. This is often caused
by an out-of-date version of libssl. It's also possible that you're
behind a firewall and haven't set HTTP_PROXY and HTTPS_PROXY.
Para resolver o problema basta alterar a variavel de ambiente HTTP_CLIENT.
Se voce quiser utilizar o wget, digite:
export HTTP_CLIENT="wget --no-check-certificate -O"
Se voce quiser utilizar o curl, digite:
export HTTP_CLIENT="curl --insecure -f -L -o"