[INFO] cloning repository https://github.com/Wdboyes13/rust-os
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Wdboyes13/rust-os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWdboyes13%2Frust-os", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWdboyes13%2Frust-os'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 193e7024337d7062967769851d75d986fb8f3671
[INFO] checking Wdboyes13/rust-os against master#1b8f2e46e14b08208a53585570edd9206374aae8 for pr-155418
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWdboyes13%2Frust-os" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-1-tc1/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-1-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/Wdboyes13/rust-os
[INFO] finished tweaking git repo https://github.com/Wdboyes13/rust-os
[INFO] tweaked toml for git repo https://github.com/Wdboyes13/rust-os written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Wdboyes13/rust-os on toolchain 1b8f2e46e14b08208a53585570edd9206374aae8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1b8f2e46e14b08208a53585570edd9206374aae8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Wdboyes13/rust-os 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" "+1b8f2e46e14b08208a53585570edd9206374aae8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: failed to select a version for `fat32`.
[INFO] [stderr]     ... required by package `rust-os v0.1.0 (/workspace/builds/worker-1-tc1/source)`
[INFO] [stderr] versions that meet the requirements `^0.2.0` (locked to 0.2.0) are: 0.2.0
[INFO] [stderr] 
[INFO] [stderr] package `rust-os` depends on `fat32` with feature `1` but `fat32` does not have that feature.
[INFO] [stderr] help: there is a feature `512` with a similar name
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `fat32` 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 `fat32`.
           ... required by package `rust-os v0.1.0 (/workspace/builds/worker-1-tc1/source)`
       versions that meet the requirements `^0.2.0` (locked to 0.2.0) are: 0.2.0
       
       package `rust-os` depends on `fat32` with feature `1` but `fat32` does not have that feature.
       help: there is a feature `512` with a similar name
       
       
       failed to select a version for `fat32` which could resolve this conflict