[INFO] fetching crate aklat 0.0.20...
[INFO] checking aklat-0.0.20 against try#63132bd615c9bf75e93af8405d00064212331708 for pr-153975
[INFO] extracting crate aklat 0.0.20 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate aklat 0.0.20
[INFO] finished tweaking crates.io crate aklat 0.0.20
[INFO] tweaked toml for crates.io crate aklat 0.0.20 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate aklat 0.0.20 on toolchain 63132bd615c9bf75e93af8405d00064212331708
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+63132bd615c9bf75e93af8405d00064212331708" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+63132bd615c9bf75e93af8405d00064212331708" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: failed to select a version for `toml`.
[INFO] [stderr]     ... required by package `aklat v0.0.20 (/workspace/builds/worker-3-tc2/source)`
[INFO] [stderr] versions that meet the requirements `^0.3` are: 0.3.2, 0.3.1, 0.3.0
[INFO] [stderr] 
[INFO] [stderr] package `aklat` depends on `toml` with feature `serde` but `toml` does not have that feature.
[INFO] [stderr]  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 `toml` which could resolve this conflict
[INFO] checking aklat-0.0.20 against try#63132bd615c9bf75e93af8405d00064212331708 for pr-153975
[INFO] extracting crate aklat 0.0.20 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate aklat 0.0.20
[INFO] finished tweaking crates.io crate aklat 0.0.20
[INFO] tweaked toml for crates.io crate aklat 0.0.20 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate aklat 0.0.20 on toolchain 63132bd615c9bf75e93af8405d00064212331708
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+63132bd615c9bf75e93af8405d00064212331708" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+63132bd615c9bf75e93af8405d00064212331708" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: failed to select a version for `toml`.
[INFO] [stderr]     ... required by package `aklat v0.0.20 (/workspace/builds/worker-3-tc2/source)`
[INFO] [stderr] versions that meet the requirements `^0.3` are: 0.3.2, 0.3.1, 0.3.0
[INFO] [stderr] 
[INFO] [stderr] package `aklat` depends on `toml` with feature `serde` but `toml` does not have that feature.
[INFO] [stderr]  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 `toml` which could resolve this conflict
[INFO] checking aklat-0.0.20 against try#63132bd615c9bf75e93af8405d00064212331708 for pr-153975
[INFO] extracting crate aklat 0.0.20 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate aklat 0.0.20
[INFO] finished tweaking crates.io crate aklat 0.0.20
[INFO] tweaked toml for crates.io crate aklat 0.0.20 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate aklat 0.0.20 on toolchain 63132bd615c9bf75e93af8405d00064212331708
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+63132bd615c9bf75e93af8405d00064212331708" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+63132bd615c9bf75e93af8405d00064212331708" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: failed to select a version for `toml`.
[INFO] [stderr]     ... required by package `aklat v0.0.20 (/workspace/builds/worker-3-tc2/source)`
[INFO] [stderr] versions that meet the requirements `^0.3` are: 0.3.2, 0.3.1, 0.3.0
[INFO] [stderr] 
[INFO] [stderr] package `aklat` depends on `toml` with feature `serde` but `toml` does not have that feature.
[INFO] [stderr]  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 `toml` which could resolve this conflict
[INFO] checking aklat-0.0.20 against try#63132bd615c9bf75e93af8405d00064212331708 for pr-153975
[INFO] extracting crate aklat 0.0.20 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate aklat 0.0.20
[INFO] finished tweaking crates.io crate aklat 0.0.20
[INFO] tweaked toml for crates.io crate aklat 0.0.20 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate aklat 0.0.20 on toolchain 63132bd615c9bf75e93af8405d00064212331708
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+63132bd615c9bf75e93af8405d00064212331708" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+63132bd615c9bf75e93af8405d00064212331708" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: failed to select a version for `toml`.
[INFO] [stderr]     ... required by package `aklat v0.0.20 (/workspace/builds/worker-3-tc2/source)`
[INFO] [stderr] versions that meet the requirements `^0.3` are: 0.3.2, 0.3.1, 0.3.0
[INFO] [stderr] 
[INFO] [stderr] package `aklat` depends on `toml` with feature `serde` but `toml` does not have that feature.
[INFO] [stderr]  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 `toml` which could resolve this conflict
[INFO] checking aklat-0.0.20 against try#63132bd615c9bf75e93af8405d00064212331708 for pr-153975
[INFO] extracting crate aklat 0.0.20 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate aklat 0.0.20
[INFO] finished tweaking crates.io crate aklat 0.0.20
[INFO] tweaked toml for crates.io crate aklat 0.0.20 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate aklat 0.0.20 on toolchain 63132bd615c9bf75e93af8405d00064212331708
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+63132bd615c9bf75e93af8405d00064212331708" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+63132bd615c9bf75e93af8405d00064212331708" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: failed to select a version for `toml`.
[INFO] [stderr]     ... required by package `aklat v0.0.20 (/workspace/builds/worker-3-tc2/source)`
[INFO] [stderr] versions that meet the requirements `^0.3` are: 0.3.2, 0.3.1, 0.3.0
[INFO] [stderr] 
[INFO] [stderr] package `aklat` depends on `toml` with feature `serde` but `toml` does not have that feature.
[INFO] [stderr]  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 `toml` 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 `toml`.
           ... required by package `aklat v0.0.20 (/workspace/builds/worker-3-tc2/source)`
       versions that meet the requirements `^0.3` are: 0.3.2, 0.3.1, 0.3.0
       
       package `aklat` depends on `toml` with feature `serde` but `toml` does not have that feature.
        A required dependency with that name exists, but only optional dependencies can be used as features.
       
       
       failed to select a version for `toml` which could resolve this conflict