[INFO] cloning repository https://github.com/RezRh/FlatDrop
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RezRh/FlatDrop" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRezRh%2FFlatDrop", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRezRh%2FFlatDrop'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7d89d275be6cb5f805475e02985895be4f1c2e25
[INFO] checking RezRh/FlatDrop against master#4b9792692fbb675174d4d2082e7c37b2bc930e71 for pr-153692-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRezRh%2FFlatDrop" "/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/RezRh/FlatDrop
[INFO] finished tweaking git repo https://github.com/RezRh/FlatDrop
[INFO] tweaked toml for git repo https://github.com/RezRh/FlatDrop written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/RezRh/FlatDrop on toolchain 4b9792692fbb675174d4d2082e7c37b2bc930e71
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4b9792692fbb675174d4d2082e7c37b2bc930e71" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/RezRh/FlatDrop 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" "+4b9792692fbb675174d4d2082e7c37b2bc930e71" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: failed to select a version for `chacha20poly1305`.
[INFO] [stderr]     ... required by package `hub v0.1.0 (/workspace/builds/worker-2-tc1/source/native/hub)`
[INFO] [stderr] versions that meet the requirements `^0.10` (locked to 0.10.1) are: 0.10.1
[INFO] [stderr] 
[INFO] [stderr] package `hub` depends on `chacha20poly1305` with feature `zeroize` but `chacha20poly1305` does not have that feature.
[INFO] [stderr] note: a required dependency with that name exists, but only optional dependencies can be used as features.
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `chacha20poly1305` which could resolve this conflict


overridden task result to prepare-fail:unknown

Caused by:
    0: uncategorized prepare error
    1: command failed: exit status: 101
       
           Blocking waiting for file lock on package cache
           Updating crates.io index
       error: failed to select a version for `chacha20poly1305`.
           ... required by package `hub v0.1.0 (/workspace/builds/worker-2-tc1/source/native/hub)`
       versions that meet the requirements `^0.10` (locked to 0.10.1) are: 0.10.1
       
       package `hub` depends on `chacha20poly1305` with feature `zeroize` but `chacha20poly1305` does not have that feature.
       note: a required dependency with that name exists, but only optional dependencies can be used as features.
       
       
       failed to select a version for `chacha20poly1305` which could resolve this conflict