Collecting twitter.common.lang==0.3.9 (from twitter.common.collections<0.4,>=0.3.1->-r /Users/yic/workspace/pants/3rdparty/python/twitter/commons/requirements.txt (line 1))
Collecting twitter.common.log==0.3.9 (from twitter.common.confluence<0.4,>=0.3.1->-r /Users/yic/workspace/pants/3rdparty/python/twitter/commons/requirements.txt (line 2))
Collecting twitter.common.options==0.3.9 (from twitter.common.log==0.3.9->twitter.common.confluence<0.4,>=0.3.1->-r /Users/yic/workspace/pants/3rdparty/python/twitter/commons/requirements.txt (line 2))
Installing collected packages: twitter.common.lang, twitter.common.collections, twitter.common.dirutil, twitter.common.options, twitter.common.log, twitter.common.confluence
Successfully installed twitter.common.collections-0.3.9 twitter.common.confluence-0.3.9 twitter.common.dirutil-0.3.9 twitter.common.lang-0.3.9 twitter.common.log-0.3.9 twitter.common.options-0.3.9
Requirement already satisfied: beautifulsoup4<4.4,>=4.3.2 in ./build-support/pants_dev_deps.venv/lib/python2.7/site-packages (from -r /Users/yic/workspace/pants/pants-plugins/3rdparty/python/requirements.txt (line 1))
A pants owned rustup installation could not be found, installing via the instructions at <https://www.rustup.rs> ...
info: downloading installer
warning: it looks like you have an existing installation of Rust
warning: rustup cannot be installed alongside Rust. Please uninstall first
warning: run `/usr/local/lib/rustlib/uninstall.sh` as root to uninstall Rust
error: cannot install while Rust is installed
rustup: command failed: /var/folders/yt/pxdd3gp96530xh_116kskmkh0000gn/T/tmp.J29bevMb/rustup-init -y --no-modify-path
/Users/yic/workspace/pants/build-support/bin/native/bootstrap.sh: line 41: /Users/yic/.cache/pants/rust-toolchain/bin/rustup: No such file or directory
/Users/yic/workspace/pants/build-support/bin/native/bootstrap.sh: line 55: /Users/yic/.cache/pants/rust-toolchain/bin/cargo: No such file or directory