[INFO] cloning repository https://github.com/BersisSe/feather
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BersisSe/feather" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBersisSe%2Ffeather", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBersisSe%2Ffeather'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e617c1b91f6119c82bcf770e079642f408f01dc7
[INFO] checking BersisSe/feather against master#d14d202262d13df896b0c624b0cec6e4bfde631a for pr-143028
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBersisSe%2Ffeather" "/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/BersisSe/feather
[INFO] finished tweaking git repo https://github.com/BersisSe/feather
[INFO] tweaked toml for git repo https://github.com/BersisSe/feather written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/BersisSe/feather on toolchain d14d202262d13df896b0c624b0cec6e4bfde631a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d14d202262d13df896b0c624b0cec6e4bfde631a" "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" "+d14d202262d13df896b0c624b0cec6e4bfde631a" "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 `feather-runtime`.
[INFO] [stderr]     ... required by package `feather v0.4.6 (/workspace/builds/worker-2-tc1/source/crates/feather)`
[INFO] [stderr] versions that meet the requirements `~0.3` are: 0.3.2
[INFO] [stderr] 
[INFO] [stderr] package `feather` depends on `feather-runtime` with feature `serde` but `feather-runtime` 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 `feather-runtime` which could resolve this conflict


command failed: exit status: 101

    Updating crates.io index
error: failed to select a version for `feather-runtime`.
    ... required by package `feather v0.4.6 (/workspace/builds/worker-2-tc1/source/crates/feather)`
versions that meet the requirements `~0.3` are: 0.3.2

package `feather` depends on `feather-runtime` with feature `serde` but `feather-runtime` 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 `feather-runtime` which could resolve this conflict