[INFO] updating cached repository https://github.com/getsentry/semaphore
[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/getsentry/semaphore
[INFO] [stderr]  - [deleted]           (none)     -> event-generator
[INFO] [stderr]  - [deleted]           (none)     -> feat/doc-key-cache
[INFO] [stderr]  - [deleted]           (none)     -> ref/aho-corasick
[INFO] [stderr]  - [deleted]           (none)     -> ref/dfa-size-limit
[INFO] [stderr]  - [deleted]           (none)     -> ref/field-attrs
[INFO] [stderr]  - [deleted]           (none)     -> release-library/0.5.10
[INFO] [stderr]  - [deleted]           (none)     -> release/20.5.0
[INFO] [stderr]  - [deleted]           (none)     -> wip/leaktest
[INFO] [stderr]  * [new branch]        build/remove-librdkafka-build-dependencies -> build/remove-librdkafka-build-dependencies
[INFO] [stderr]  + f4e4246c...4b176d27 doc/jsonschema-event      -> doc/jsonschema-event  (forced update)
[INFO] [stderr]  * [new branch]        feat/extend-kafka-outcomes-producer -> feat/extend-kafka-outcomes-producer
[INFO] [stderr]  * [new branch]        feat/outcome-track-region -> feat/outcome-track-region
[INFO] [stderr]  * [new branch]        fix/error-event-buffer    -> fix/error-event-buffer
[INFO] [stderr]    8a226679..460ed8ee  master                    -> master
[INFO] [stderr]  * [new branch]        ref/minidump-placeholder-retain -> ref/minidump-placeholder-retain
[INFO] [stderr]  * [new branch]        wip/conn-timeout          -> wip/conn-timeout
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 460ed8ee24017db9e7bb8603751f38ec82c87503
[ERROR] this task or one of its parent failed!
[ERROR] command `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.