[INFO] cloning repository https://github.com/hemachandra0801/chat-application
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hemachandra0801/chat-application" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhemachandra0801%2Fchat-application", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhemachandra0801%2Fchat-application'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 56585b55fe95a829f2a2985581fe203da8a272e2
[INFO] checking hemachandra0801/chat-application against master#8f359beca4e58bc3ae795a666301a8f47023044c for pr-121557
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhemachandra0801%2Fchat-application" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hemachandra0801/chat-application on toolchain 8f359beca4e58bc3ae795a666301a8f47023044c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8f359beca4e58bc3ae795a666301a8f47023044c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hemachandra0801/chat-application
[INFO] finished tweaking git repo https://github.com/hemachandra0801/chat-application
[INFO] tweaked toml for git repo https://github.com/hemachandra0801/chat-application written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/hemachandra0801/chat-application already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8f359beca4e58bc3ae795a666301a8f47023044c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: failed to select a version for the requirement `hmac = "^0.1"`
[INFO] [stderr] candidate versions found which didn't match: 0.13.0-pre.3, 0.13.0-pre.2, 0.13.0-pre.1, ...
[INFO] [stderr] location searched: crates.io index
[INFO] [stderr] required by package `postgres-protocol v0.3.0`
[INFO] [stderr]     ... which satisfies dependency `postgres-protocol = "^0.3.0"` of package `postgres v0.15.1`
[INFO] [stderr]     ... which satisfies dependency `postgres = "^0.15.1"` of package `microservice v0.1.0 (/workspace/builds/worker-3-tc1/source)`
[INFO] [stderr] if you are looking for the prerelease package it needs to be specified explicitly
[INFO] [stderr]     hmac = { version = "0.13.0-pre.3" }
[INFO] [stderr] perhaps a crate was updated and forgotten to be re-vendored?
[ERROR] this task or one of its parent failed!
[ERROR] command failed: exit status: 101
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.