[INFO] updating cached repository gnunicorn/clippy-service
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/gnunicorn/clippy-service
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/gnunicorn/clippy-service" "work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/gnunicorn/clippy-service"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/gnunicorn/clippy-service'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/gnunicorn/clippy-service" "work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/gnunicorn/clippy-service"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/gnunicorn/clippy-service'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6ecbaadcececfaf567fba53a1352a7d297b98d52
[INFO] sha for GitHub repo gnunicorn/clippy-service: 6ecbaadcececfaf567fba53a1352a7d297b98d52
[INFO] validating manifest of gnunicorn/clippy-service on toolchain master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of gnunicorn/clippy-service on toolchain try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing gnunicorn/clippy-service
[INFO] finished frobbing gnunicorn/clippy-service
[INFO] frobbed toml for gnunicorn/clippy-service written to work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/gnunicorn/clippy-service/Cargo.toml
[INFO] started frobbing gnunicorn/clippy-service
[INFO] finished frobbing gnunicorn/clippy-service
[INFO] frobbed toml for gnunicorn/clippy-service written to work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/gnunicorn/clippy-service/Cargo.toml
[INFO] crate gnunicorn/clippy-service already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Updating git repository `https://github.com/Manishearth/rust-clippy`
[INFO] [stderr]     Blocking waiting for file lock on the registry index
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: failed to select a version for `matches`.
[INFO] [stderr]     ... required by package `clippy_lints v0.0.212 (https://github.com/Manishearth/rust-clippy#54e20519)`
[INFO] [stderr]     ... which is depended on by `clippy v0.0.212 (https://github.com/Manishearth/rust-clippy#54e20519)`
[INFO] [stderr]     ... which is depended on by `clippy_service v1.0.0 (/mnt/crater-raid/crater/work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/gnunicorn/clippy-service)`
[INFO] [stderr] versions that meet the requirements `^0.1.7` are: 0.1.8, 0.1.7
[INFO] [stderr] 
[INFO] [stderr] all possible versions conflict with previously selected packages.
[INFO] [stderr] 
[INFO] [stderr]   previously selected package `matches v0.1.2`
[INFO] [stderr]     ... which is depended on by `unicode-bidi v0.2.3`
[INFO] [stderr]     ... which is depended on by `url v0.5.7`
[INFO] [stderr]     ... which is depended on by `clippy_service v1.0.0 (/mnt/crater-raid/crater/work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/gnunicorn/clippy-service)`
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `matches` which could resolve this conflict
[ERROR] this task or one of its parent failed!
[ERROR] command `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed