[INFO] updating cached repository https://github.com/mozilla-services/syncstorage-rs
[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/mozilla-services/syncstorage-rs
[INFO] [stderr]  - [deleted]               (none)     -> bug/504
[INFO] [stderr]  - [deleted]               (none)     -> bug/purge_retry
[INFO] [stderr]  - [deleted]               (none)     -> dependabot/cargo/serde_json-1.0.53
[INFO] [stderr]  - [deleted]               (none)     -> dependabot/cargo/sha2-0.8.2
[INFO] [stderr]  - [deleted]               (none)     -> doc/472
[INFO] [stderr]  - [deleted]               (none)     -> docs/update-docker
[INFO] [stderr]  - [deleted]               (none)     -> feat/642
[INFO] [stderr]  - [deleted]               (none)     -> release/0.2b
[INFO] [stderr]  - [deleted]               (none)     -> user_migration4
[INFO] [stderr]  - [deleted]               (none)     -> user_migration5
[INFO] [stderr]  + 0097f47329...d964e84f6c dependabot/cargo/base64-0.12.1 -> dependabot/cargo/base64-0.12.1  (forced update)
[INFO] [stderr]  + ec39e7eded...3e81056b6c dependabot/cargo/failure-0.1.8 -> dependabot/cargo/failure-0.1.8  (forced update)
[INFO] [stderr]  + 869b191ac5...e7ed71f9ef dependabot/cargo/futures-0.3.5 -> dependabot/cargo/futures-0.3.5  (forced update)
[INFO] [stderr]  + 0038dcc415...9a1f71cff6 dependabot/cargo/grpcio-0.5.3 -> dependabot/cargo/grpcio-0.5.3  (forced update)
[INFO] [stderr]  + 1118871b5c...7bb09216ff dependabot/cargo/hawk-3.2.0 -> dependabot/cargo/hawk-3.2.0  (forced update)
[INFO] [stderr]  + 4adc38c4d7...878d1638ee dependabot/cargo/protobuf-2.13.0 -> dependabot/cargo/protobuf-2.13.0  (forced update)
[INFO] [stderr]  + 1a907edc89...8d2f586b94 dependabot/cargo/regex-1.3.9 -> dependabot/cargo/regex-1.3.9  (forced update)
[INFO] [stderr]  + 968ff8ad4c...2e513e87bf dependabot/cargo/sentry-0.18.1 -> dependabot/cargo/sentry-0.18.1  (forced update)
[INFO] [stderr]  + 9ec98d34c6...6acdb40948 dependabot/cargo/serde-1.0.111 -> dependabot/cargo/serde-1.0.111  (forced update)
[INFO] [stderr]  * [new branch]            dependabot/cargo/serde_json-1.0.55 -> dependabot/cargo/serde_json-1.0.55
[INFO] [stderr]  * [new branch]            dependabot/cargo/sha2-0.9.0 -> dependabot/cargo/sha2-0.9.0
[INFO] [stderr]  + 9425209a53...652fb89bb1 dependabot/cargo/slog-term-2.6.0 -> dependabot/cargo/slog-term-2.6.0  (forced update)
[INFO] [stderr]  + f01d022d48...892e5ad4bb dependabot/cargo/time-0.2.16 -> dependabot/cargo/time-0.2.16  (forced update)
[INFO] [stderr]  * [new branch]            feat/631                    -> feat/631
[INFO] [stderr]  * [new branch]            fix/647                     -> fix/647
[INFO] [stderr]    7203b8fb7f..2060601c48  master                      -> master
[INFO] [stderr]    4eff9ec41e..a1dc2eadfa  release/0.3-merge           -> release/0.3-merge
[INFO] [stderr]  * [new branch]            release/0.4                 -> release/0.4
[INFO] [stderr]  * [new tag]               0.4.0                       -> 0.4.0
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2060601c483a09c50ae6c7809d5b658980ad3ad8
[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.