[INFO] cloning repository johnliu55tw/rust-zmq-poller
[INFO] running `"git" "clone" "--bare" "git://github.com/johnliu55tw/rust-zmq-poller.git" "work/cache/sources/gh/johnliu55tw/rust-zmq-poller"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/johnliu55tw/rust-zmq-poller'...
[INFO] running `"git" "clone" "work/cache/sources/gh/johnliu55tw/rust-zmq-poller" "work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/johnliu55tw/rust-zmq-poller"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/johnliu55tw/rust-zmq-poller'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/johnliu55tw/rust-zmq-poller" "work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/johnliu55tw/rust-zmq-poller"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/johnliu55tw/rust-zmq-poller'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ff6e17a3d085686e780f8bbff85e9020a59910cd
[INFO] sha for GitHub repo johnliu55tw/rust-zmq-poller: ff6e17a3d085686e780f8bbff85e9020a59910cd
[INFO] validating manifest of johnliu55tw/rust-zmq-poller on toolchain master#c0086b9e8972fef9fd4af24bae20d45021ed06c6
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of johnliu55tw/rust-zmq-poller on toolchain try#290ac7b29f41ff9fa5232f9a1116ea71a3501063
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing johnliu55tw/rust-zmq-poller
[INFO] finished frobbing johnliu55tw/rust-zmq-poller
[INFO] frobbed toml for johnliu55tw/rust-zmq-poller written to work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/johnliu55tw/rust-zmq-poller/Cargo.toml
[INFO] started frobbing johnliu55tw/rust-zmq-poller
[INFO] finished frobbing johnliu55tw/rust-zmq-poller
[INFO] frobbed toml for johnliu55tw/rust-zmq-poller written to work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/johnliu55tw/rust-zmq-poller/Cargo.toml
[INFO] crate johnliu55tw/rust-zmq-poller has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on the git checkouts
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/johnliu55tw/rust-zmq-poller/Cargo.lock needs to be updated but --locked was passed to prevent this
[ERROR] this task or one of its parent failed!
[ERROR] command `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed