[INFO] updating cached repository librespot-org/librespot
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/librespot-org/librespot
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/librespot-org/librespot" "work/ex/beta-1.38-1/sources/1.37.0/gh/librespot-org/librespot"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/librespot-org/librespot'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/librespot-org/librespot" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/librespot-org/librespot"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/librespot-org/librespot'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4e3576ba7c6146cf68e1953daeec929d619b26b1
[INFO] sha for GitHub repo librespot-org/librespot: 4e3576ba7c6146cf68e1953daeec929d619b26b1
[INFO] validating manifest of librespot-org/librespot on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of librespot-org/librespot on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing librespot-org/librespot
[INFO] removed workspace from librespot-org/librespot
[INFO] removed path dependency librespot-audio from librespot-org/librespot
[INFO] removed path dependency librespot-connect from librespot-org/librespot
[INFO] removed path dependency librespot-core from librespot-org/librespot
[INFO] removed path dependency librespot-metadata from librespot-org/librespot
[INFO] removed path dependency librespot-playback from librespot-org/librespot
[INFO] removed path dependency librespot-protocol from librespot-org/librespot
[INFO] finished frobbing librespot-org/librespot
[INFO] frobbed toml for librespot-org/librespot written to work/ex/beta-1.38-1/sources/1.37.0/gh/librespot-org/librespot/Cargo.toml
[INFO] started frobbing librespot-org/librespot
[INFO] removed workspace from librespot-org/librespot
[INFO] removed path dependency librespot-audio from librespot-org/librespot
[INFO] removed path dependency librespot-connect from librespot-org/librespot
[INFO] removed path dependency librespot-core from librespot-org/librespot
[INFO] removed path dependency librespot-metadata from librespot-org/librespot
[INFO] removed path dependency librespot-playback from librespot-org/librespot
[INFO] removed path dependency librespot-protocol from librespot-org/librespot
[INFO] finished frobbing librespot-org/librespot
[INFO] frobbed toml for librespot-org/librespot written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/librespot-org/librespot/Cargo.toml
[INFO] crate librespot-org/librespot already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[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 `librespot-audio`.
[INFO] [stderr]     ... required by package `librespot v0.1.0 (/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/librespot-org/librespot)`
[INFO] [stderr] versions that meet the requirements `*` are: 0.0.0
[INFO] [stderr] 
[INFO] [stderr] the package `librespot` depends on `librespot-audio`, with features: `with-vorbis, with-tremor` but `librespot-audio` does not have these features.
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `librespot-audio` which could resolve this conflict
[ERROR] this task or one of its parent failed!
[ERROR] command `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed