[INFO] cloning repository https://github.com/HikaruApps/flux-core
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/HikaruApps/flux-core" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHikaruApps%2Fflux-core", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHikaruApps%2Fflux-core'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 81990b5d6c070cdf7d79e492e1bc83059809062b
[INFO] checking HikaruApps/flux-core against master#1fe72d35998dea48aeecaf7fc07783b0b553f24f for pr-154992
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHikaruApps%2Fflux-core" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/HikaruApps/flux-core
[INFO] finished tweaking git repo https://github.com/HikaruApps/flux-core
[INFO] tweaked toml for git repo https://github.com/HikaruApps/flux-core written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/HikaruApps/flux-core on toolchain 1fe72d35998dea48aeecaf7fc07783b0b553f24f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1fe72d35998dea48aeecaf7fc07783b0b553f24f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/HikaruApps/flux-core 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" "+1fe72d35998dea48aeecaf7fc07783b0b553f24f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: failed to select a version for `x25519-dalek`.
[INFO] [stderr]     ... required by package `flux-core v0.1.0 (/workspace/builds/worker-2-tc1/source)`
[INFO] [stderr] versions that meet the requirements `^2.0` are: 2.0.1, 2.0.0
[INFO] [stderr] 
[INFO] [stderr] all possible versions conflict with previously selected packages
[INFO] [stderr] 
[INFO] [stderr]   previously selected package `x25519-dalek v2.0.0-rc.3`
[INFO] [stderr]     ... which satisfies dependency `x25519-dalek = "=2.0.0-rc.3"` of package `boringtun v0.6.0`
[INFO] [stderr]     ... which satisfies dependency `boringtun = "^0.6"` of package `flux-core v0.1.0 (/workspace/builds/worker-2-tc1/source)`
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `x25519-dalek` which could resolve this conflict


overridden task result to prepare-fail:unknown

Caused by:
    0: uncategorized prepare error
    1: command failed: exit status: 101
       
           Updating crates.io index
       error: failed to select a version for `x25519-dalek`.
           ... required by package `flux-core v0.1.0 (/workspace/builds/worker-2-tc1/source)`
       versions that meet the requirements `^2.0` are: 2.0.1, 2.0.0
       
       all possible versions conflict with previously selected packages
       
         previously selected package `x25519-dalek v2.0.0-rc.3`
           ... which satisfies dependency `x25519-dalek = "=2.0.0-rc.3"` of package `boringtun v0.6.0`
           ... which satisfies dependency `boringtun = "^0.6"` of package `flux-core v0.1.0 (/workspace/builds/worker-2-tc1/source)`
       
       failed to select a version for `x25519-dalek` which could resolve this conflict