[INFO] cloning repository https://github.com/trilltino/xforce-crypto-info
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/trilltino/xforce-crypto-info" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrilltino%2Fxforce-crypto-info", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrilltino%2Fxforce-crypto-info'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fac423dc2581af6c45c5d7e695615044836d08cb
[INFO] checking trilltino/xforce-crypto-info against try#d83b14207998f47b18a34e930157ac0d7c18b16e for pr-149137
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrilltino%2Fxforce-crypto-info" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/trilltino/xforce-crypto-info
[INFO] finished tweaking git repo https://github.com/trilltino/xforce-crypto-info
[INFO] tweaked toml for git repo https://github.com/trilltino/xforce-crypto-info written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/trilltino/xforce-crypto-info on toolchain d83b14207998f47b18a34e930157ac0d7c18b16e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d83b14207998f47b18a34e930157ac0d7c18b16e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/trilltino/xforce-crypto-info 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" "+d83b14207998f47b18a34e930157ac0d7c18b16e" "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 `backoff = "^0.5"`
[INFO] [stderr] candidate versions found which didn't match: 0.4.0, 0.3.0, 0.3.0-alpha.1, ...
[INFO] [stderr] location searched: crates.io index
[INFO] [stderr] required by package `news-service v0.1.0 (/workspace/builds/worker-2-tc2/source/news-service)`
[INFO] [stderr] if you are looking for the prerelease package it needs to be specified explicitly
[INFO] [stderr]     backoff = { version = "0.3.0-alpha.1" }
[INFO] checking trilltino/xforce-crypto-info against try#d83b14207998f47b18a34e930157ac0d7c18b16e for pr-149137
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrilltino%2Fxforce-crypto-info" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/trilltino/xforce-crypto-info
[INFO] finished tweaking git repo https://github.com/trilltino/xforce-crypto-info
[INFO] tweaked toml for git repo https://github.com/trilltino/xforce-crypto-info written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/trilltino/xforce-crypto-info on toolchain d83b14207998f47b18a34e930157ac0d7c18b16e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d83b14207998f47b18a34e930157ac0d7c18b16e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/trilltino/xforce-crypto-info 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" "+d83b14207998f47b18a34e930157ac0d7c18b16e" "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 `backoff = "^0.5"`
[INFO] [stderr] candidate versions found which didn't match: 0.4.0, 0.3.0, 0.3.0-alpha.1, ...
[INFO] [stderr] location searched: crates.io index
[INFO] [stderr] required by package `news-service v0.1.0 (/workspace/builds/worker-2-tc2/source/news-service)`
[INFO] [stderr] if you are looking for the prerelease package it needs to be specified explicitly
[INFO] [stderr]     backoff = { version = "0.3.0-alpha.1" }
[INFO] checking trilltino/xforce-crypto-info against try#d83b14207998f47b18a34e930157ac0d7c18b16e for pr-149137
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrilltino%2Fxforce-crypto-info" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/trilltino/xforce-crypto-info
[INFO] finished tweaking git repo https://github.com/trilltino/xforce-crypto-info
[INFO] tweaked toml for git repo https://github.com/trilltino/xforce-crypto-info written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/trilltino/xforce-crypto-info on toolchain d83b14207998f47b18a34e930157ac0d7c18b16e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d83b14207998f47b18a34e930157ac0d7c18b16e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/trilltino/xforce-crypto-info 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" "+d83b14207998f47b18a34e930157ac0d7c18b16e" "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 `backoff = "^0.5"`
[INFO] [stderr] candidate versions found which didn't match: 0.4.0, 0.3.0, 0.3.0-alpha.1, ...
[INFO] [stderr] location searched: crates.io index
[INFO] [stderr] required by package `news-service v0.1.0 (/workspace/builds/worker-2-tc2/source/news-service)`
[INFO] [stderr] if you are looking for the prerelease package it needs to be specified explicitly
[INFO] [stderr]     backoff = { version = "0.3.0-alpha.1" }
[INFO] checking trilltino/xforce-crypto-info against try#d83b14207998f47b18a34e930157ac0d7c18b16e for pr-149137
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrilltino%2Fxforce-crypto-info" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/trilltino/xforce-crypto-info
[INFO] finished tweaking git repo https://github.com/trilltino/xforce-crypto-info
[INFO] tweaked toml for git repo https://github.com/trilltino/xforce-crypto-info written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/trilltino/xforce-crypto-info on toolchain d83b14207998f47b18a34e930157ac0d7c18b16e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d83b14207998f47b18a34e930157ac0d7c18b16e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/trilltino/xforce-crypto-info 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" "+d83b14207998f47b18a34e930157ac0d7c18b16e" "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 `backoff = "^0.5"`
[INFO] [stderr] candidate versions found which didn't match: 0.4.0, 0.3.0, 0.3.0-alpha.1, ...
[INFO] [stderr] location searched: crates.io index
[INFO] [stderr] required by package `news-service v0.1.0 (/workspace/builds/worker-2-tc2/source/news-service)`
[INFO] [stderr] if you are looking for the prerelease package it needs to be specified explicitly
[INFO] [stderr]     backoff = { version = "0.3.0-alpha.1" }
[INFO] checking trilltino/xforce-crypto-info against try#d83b14207998f47b18a34e930157ac0d7c18b16e for pr-149137
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrilltino%2Fxforce-crypto-info" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/trilltino/xforce-crypto-info
[INFO] finished tweaking git repo https://github.com/trilltino/xforce-crypto-info
[INFO] tweaked toml for git repo https://github.com/trilltino/xforce-crypto-info written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/trilltino/xforce-crypto-info on toolchain d83b14207998f47b18a34e930157ac0d7c18b16e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d83b14207998f47b18a34e930157ac0d7c18b16e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/trilltino/xforce-crypto-info 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" "+d83b14207998f47b18a34e930157ac0d7c18b16e" "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 `backoff = "^0.5"`
[INFO] [stderr] candidate versions found which didn't match: 0.4.0, 0.3.0, 0.3.0-alpha.1, ...
[INFO] [stderr] location searched: crates.io index
[INFO] [stderr] required by package `news-service v0.1.0 (/workspace/builds/worker-2-tc2/source/news-service)`
[INFO] [stderr] if you are looking for the prerelease package it needs to be specified explicitly
[INFO] [stderr]     backoff = { version = "0.3.0-alpha.1" }


command failed: exit status: 101

    Updating crates.io index
error: failed to select a version for the requirement `backoff = "^0.5"`
candidate versions found which didn't match: 0.4.0, 0.3.0, 0.3.0-alpha.1, ...
location searched: crates.io index
required by package `news-service v0.1.0 (/workspace/builds/worker-2-tc2/source/news-service)`
if you are looking for the prerelease package it needs to be specified explicitly
    backoff = { version = "0.3.0-alpha.1" }