[INFO] crate futures2 0.1.0 is already in cache
[INFO] extracting crate futures2 0.1.0 into work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/futures2/0.1.0
[INFO] extracting crate futures2 0.1.0 into work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/futures2/0.1.0
[INFO] validating manifest of futures2-0.1.0 on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of futures2-0.1.0 on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-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-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/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-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/futures2/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-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: 0.1.27, 0.1.26, 0.1.25, ...
[INFO] [stderr]   location searched: crates.io index
[INFO] [stderr] required by package `futures2 v0.1.0 (/mnt/big/crater/work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/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]