[INFO] crate futures2 0.1.0 is already in cache
[INFO] extracting crate futures2 0.1.0 into work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/reg/futures2/0.1.0
[INFO] extracting crate futures2 0.1.0 into work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/reg/futures2/0.1.0
[INFO] validating manifest of futures2-0.1.0 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 futures2-0.1.0 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 futures2-0.1.0
[INFO] finished frobbing futures2-0.1.0
[INFO] frobbed toml for futures2-0.1.0 written to work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/reg/futures2/0.1.0/Cargo.toml
[INFO] started frobbing futures2-0.1.0
[INFO] finished frobbing futures2-0.1.0
[INFO] frobbed toml for futures2-0.1.0 written to work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/reg/futures2/0.1.0/Cargo.toml
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr] error: failed to select a version for the requirement `futures = "= 0.2.0-beta"`
[INFO] [stderr]   candidate versions found which didn't match: 0.1.25, 0.1.24, 0.1.23, ...
[INFO] [stderr]   location searched: crates.io index
[INFO] [stderr] required by package `futures2 v0.1.0 (/mnt/crater-raid/crater/work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/reg/futures2/0.1.0)`
[ERROR] this task or one of its parent failed!
[ERROR] overridden task result to broken:yanked
[ERROR] caused by: crate futures2-0.1.0 depends on yanked crates
[ERROR]