[INFO] fetching crate hints 0.0.5...
[INFO] checking hints-0.0.5 against master#f8f6997469237299c1d60814c7b9828602a1f8e4 for pr-143808
[INFO] extracting crate hints 0.0.5 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate hints 0.0.5
[INFO] finished tweaking crates.io crate hints 0.0.5
[INFO] tweaked toml for crates.io crate hints 0.0.5 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate hints 0.0.5 on toolchain f8f6997469237299c1d60814c7b9828602a1f8e4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f8f6997469237299c1d60814c7b9828602a1f8e4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate hints 0.0.5 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" "+f8f6997469237299c1d60814c7b9828602a1f8e4" "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 `ark-serialize`.
[INFO] [stderr]     ... required by package `hints v0.0.5 (/workspace/builds/worker-6-tc1/source)`
[INFO] [stderr] versions that meet the requirements `^0.5.0` are: 0.5.0
[INFO] [stderr] 
[INFO] [stderr] package `hints` depends on `ark-serialize` with feature `serde_with` but `ark-serialize` does not have that feature.
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `ark-serialize` which could resolve this conflict


command failed: exit status: 101

    Blocking waiting for file lock on package cache
    Updating crates.io index
error: failed to select a version for `ark-serialize`.
    ... required by package `hints v0.0.5 (/workspace/builds/worker-6-tc1/source)`
versions that meet the requirements `^0.5.0` are: 0.5.0

package `hints` depends on `ark-serialize` with feature `serde_with` but `ark-serialize` does not have that feature.


failed to select a version for `ark-serialize` which could resolve this conflict