[INFO] cloning repository https://github.com/gnosis/dex-cow-solver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gnosis/dex-cow-solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgnosis%2Fdex-cow-solver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgnosis%2Fdex-cow-solver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 12ad71c36e18bffe698704c0626e58820eedbd27
[INFO] checking gnosis/dex-cow-solver against master#8a65ee08296b36342bf7c3cdc15312ccbc357227 for pr-142704
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgnosis%2Fdex-cow-solver" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gnosis/dex-cow-solver on toolchain 8a65ee08296b36342bf7c3cdc15312ccbc357227
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a65ee08296b36342bf7c3cdc15312ccbc357227" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gnosis/dex-cow-solver
[INFO] finished tweaking git repo https://github.com/gnosis/dex-cow-solver
[INFO] tweaked toml for git repo https://github.com/gnosis/dex-cow-solver written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/gnosis/dex-cow-solver 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" "+8a65ee08296b36342bf7c3cdc15312ccbc357227" "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 `use = "^0.0.0"` (locked to 0.0.0)
[INFO] [stderr] candidate versions found which didn't match: 0.0.1-pre.0
[INFO] [stderr] location searched: crates.io index
[INFO] [stderr] required by package `cowdexsolver v0.1.0 (/workspace/builds/worker-7-tc1/source)`
[INFO] [stderr] if you are looking for the prerelease package it needs to be specified explicitly
[INFO] [stderr]     use = { version = "0.0.1-pre.0" }


command failed: exit status: 101

    Updating crates.io index
error: failed to select a version for the requirement `use = "^0.0.0"` (locked to 0.0.0)
candidate versions found which didn't match: 0.0.1-pre.0
location searched: crates.io index
required by package `cowdexsolver v0.1.0 (/workspace/builds/worker-7-tc1/source)`
if you are looking for the prerelease package it needs to be specified explicitly
    use = { version = "0.0.1-pre.0" }