[INFO] updating cached repository https://github.com/paritytech/parity-ethereum
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/paritytech/parity-ethereum
[INFO] [stderr]  - [deleted]             (none)     -> dp/perf/faster-kill_garbage
[INFO] [stderr]  - [deleted]             (none)     -> mp-fix-darwin
[INFO] [stderr]  - [deleted]             (none)     -> vorot93/remove-ipfs
[INFO] [stderr]  + 693c2b7f4...cbb79397c ao-show-io-stats      -> ao-show-io-stats  (forced update)
[INFO] [stderr]  * [new branch]          dp/perf/less-cloning-when-importing-blocks -> dp/perf/less-cloning-when-importing-blocks
[INFO] [stderr]    cd7018007..597cbc2d6  master                -> master
[INFO] [stderr]    cb7da0125..47b67ef34  mp-de-parityify       -> mp-de-parityify
[INFO] [stderr]    a01e733e7..2e6d2fdb1  na-ethcore-blockerror -> na-ethcore-blockerror
[INFO] [stderr]  + 730a9af12...8a3e74bf6 vorot93/enr           -> vorot93/enr  (forced update)
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 597cbc2d6c62cae6374f8e6fce6eb954de3504cb
[ERROR] this task or one of its parent failed!
[ERROR] command `"/workspace/cargo-home/bin/cargo" "+f503dc8e6998ec30e0e3a3937c0fd18331a5dc9f" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.