[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)     -> adria0/eip2315
[INFO] [stderr]  - [deleted]             (none)     -> vorot93/num-0.2
[INFO] [stderr]  - [deleted]             (none)     -> vorot93/yolov1
[INFO] [stderr]    1de605a75..e7f253aac  HandleImportOfForks2      -> HandleImportOfForks2
[INFO] [stderr]    651da65a0..defa34839  adria0/prometheus         -> adria0/prometheus
[INFO] [stderr]    e00517223..5368a8dcd  denisgranha/add-arm-build -> denisgranha/add-arm-build
[INFO] [stderr]    9190e6e50..38749a546  dp/chore/upgrade-to-rocksdb-0.14 -> dp/chore/upgrade-to-rocksdb-0.14
[INFO] [stderr]    d4733b84a..5d5352a63  master                    -> master
[INFO] [stderr]  + 4922c4fb1...ae4e0e30d vorot93/remove-etc        -> vorot93/remove-etc  (forced update)
[INFO] [stderr]  * [new branch]          vorot93/upstream-modexp   -> vorot93/upstream-modexp
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5d5352a63d4114c90dc679ac7fe2024434806e7b
[ERROR] this task or one of its parent failed!
[ERROR] command `"/workspace/cargo-home/bin/cargo" "+450abe80f193ccefbfcd48214d70520f2d507f0e" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.