[INFO] fetching crate fferris 0.0.0...
[INFO] checking fferris-0.0.0 against try#3857be5045fe74bd0f296f6f4c23db10f8857f73 for pr-156807
[INFO] extracting crate fferris 0.0.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate fferris 0.0.0
[INFO] finished tweaking crates.io crate fferris 0.0.0
[INFO] tweaked toml for crates.io crate fferris 0.0.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fferris 0.0.0 on toolchain 3857be5045fe74bd0f296f6f4c23db10f8857f73
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3857be5045fe74bd0f296f6f4c23db10f8857f73" "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" "+3857be5045fe74bd0f296f6f4c23db10f8857f73" "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 `fferris-sys`.
[INFO] [stderr]     ... required by package `fferris v0.0.0 (/workspace/builds/worker-7-tc2/source)`
[INFO] [stderr] versions that meet the requirements `^0.0.0` are: 0.0.0
[INFO] [stderr] 
[INFO] [stderr] package `fferris` depends on `fferris-sys` with feature `avfilter` but `fferris-sys` does not have that feature.
[INFO] [stderr] help: available features: __bindgen, avcodec, avdevice, avformat, default
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `fferris-sys` which could resolve this conflict
[INFO] checking fferris-0.0.0 against try#3857be5045fe74bd0f296f6f4c23db10f8857f73 for pr-156807
[INFO] extracting crate fferris 0.0.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate fferris 0.0.0
[INFO] finished tweaking crates.io crate fferris 0.0.0
[INFO] tweaked toml for crates.io crate fferris 0.0.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fferris 0.0.0 on toolchain 3857be5045fe74bd0f296f6f4c23db10f8857f73
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3857be5045fe74bd0f296f6f4c23db10f8857f73" "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" "+3857be5045fe74bd0f296f6f4c23db10f8857f73" "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 `fferris-sys`.
[INFO] [stderr]     ... required by package `fferris v0.0.0 (/workspace/builds/worker-7-tc2/source)`
[INFO] [stderr] versions that meet the requirements `^0.0.0` are: 0.0.0
[INFO] [stderr] 
[INFO] [stderr] package `fferris` depends on `fferris-sys` with feature `avfilter` but `fferris-sys` does not have that feature.
[INFO] [stderr] help: available features: __bindgen, avcodec, avdevice, avformat, default
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `fferris-sys` which could resolve this conflict
[INFO] checking fferris-0.0.0 against try#3857be5045fe74bd0f296f6f4c23db10f8857f73 for pr-156807
[INFO] extracting crate fferris 0.0.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate fferris 0.0.0
[INFO] finished tweaking crates.io crate fferris 0.0.0
[INFO] tweaked toml for crates.io crate fferris 0.0.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fferris 0.0.0 on toolchain 3857be5045fe74bd0f296f6f4c23db10f8857f73
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3857be5045fe74bd0f296f6f4c23db10f8857f73" "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" "+3857be5045fe74bd0f296f6f4c23db10f8857f73" "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 `fferris-sys`.
[INFO] [stderr]     ... required by package `fferris v0.0.0 (/workspace/builds/worker-7-tc2/source)`
[INFO] [stderr] versions that meet the requirements `^0.0.0` are: 0.0.0
[INFO] [stderr] 
[INFO] [stderr] package `fferris` depends on `fferris-sys` with feature `avfilter` but `fferris-sys` does not have that feature.
[INFO] [stderr] help: available features: __bindgen, avcodec, avdevice, avformat, default
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `fferris-sys` which could resolve this conflict
[INFO] checking fferris-0.0.0 against try#3857be5045fe74bd0f296f6f4c23db10f8857f73 for pr-156807
[INFO] extracting crate fferris 0.0.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate fferris 0.0.0
[INFO] finished tweaking crates.io crate fferris 0.0.0
[INFO] tweaked toml for crates.io crate fferris 0.0.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fferris 0.0.0 on toolchain 3857be5045fe74bd0f296f6f4c23db10f8857f73
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3857be5045fe74bd0f296f6f4c23db10f8857f73" "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" "+3857be5045fe74bd0f296f6f4c23db10f8857f73" "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 `fferris-sys`.
[INFO] [stderr]     ... required by package `fferris v0.0.0 (/workspace/builds/worker-7-tc2/source)`
[INFO] [stderr] versions that meet the requirements `^0.0.0` are: 0.0.0
[INFO] [stderr] 
[INFO] [stderr] package `fferris` depends on `fferris-sys` with feature `avfilter` but `fferris-sys` does not have that feature.
[INFO] [stderr] help: available features: __bindgen, avcodec, avdevice, avformat, default
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `fferris-sys` which could resolve this conflict
[INFO] checking fferris-0.0.0 against try#3857be5045fe74bd0f296f6f4c23db10f8857f73 for pr-156807
[INFO] extracting crate fferris 0.0.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate fferris 0.0.0
[INFO] finished tweaking crates.io crate fferris 0.0.0
[INFO] tweaked toml for crates.io crate fferris 0.0.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fferris 0.0.0 on toolchain 3857be5045fe74bd0f296f6f4c23db10f8857f73
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3857be5045fe74bd0f296f6f4c23db10f8857f73" "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" "+3857be5045fe74bd0f296f6f4c23db10f8857f73" "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 `fferris-sys`.
[INFO] [stderr]     ... required by package `fferris v0.0.0 (/workspace/builds/worker-7-tc2/source)`
[INFO] [stderr] versions that meet the requirements `^0.0.0` are: 0.0.0
[INFO] [stderr] 
[INFO] [stderr] package `fferris` depends on `fferris-sys` with feature `avfilter` but `fferris-sys` does not have that feature.
[INFO] [stderr] help: available features: __bindgen, avcodec, avdevice, avformat, default
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `fferris-sys` 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 `fferris-sys`.
           ... required by package `fferris v0.0.0 (/workspace/builds/worker-7-tc2/source)`
       versions that meet the requirements `^0.0.0` are: 0.0.0
       
       package `fferris` depends on `fferris-sys` with feature `avfilter` but `fferris-sys` does not have that feature.
       help: available features: __bindgen, avcodec, avdevice, avformat, default
       
       
       failed to select a version for `fferris-sys` which could resolve this conflict