[INFO] updating cached repository andrew-pa/rmaxima
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/andrew-pa/rmaxima
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/andrew-pa/rmaxima" "work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/andrew-pa/rmaxima"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/andrew-pa/rmaxima'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/andrew-pa/rmaxima" "work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/andrew-pa/rmaxima"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/andrew-pa/rmaxima'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] adddb9640c92465c52c7aedd390075d066095531
[INFO] sha for GitHub repo andrew-pa/rmaxima: adddb9640c92465c52c7aedd390075d066095531
[INFO] validating manifest of andrew-pa/rmaxima 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 andrew-pa/rmaxima 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 andrew-pa/rmaxima
[INFO] removed path dependency runic from andrew-pa/rmaxima
[INFO] finished frobbing andrew-pa/rmaxima
[INFO] frobbed toml for andrew-pa/rmaxima written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/andrew-pa/rmaxima/Cargo.toml
[INFO] started frobbing andrew-pa/rmaxima
[INFO] removed path dependency runic from andrew-pa/rmaxima
[INFO] finished frobbing andrew-pa/rmaxima
[INFO] frobbed toml for andrew-pa/rmaxima written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/andrew-pa/rmaxima/Cargo.toml
[INFO] crate andrew-pa/rmaxima already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/andrew-pa/rmaxima/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[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"`
[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 `rmaxima v0.1.0 (/mnt/big/crater/work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/andrew-pa/rmaxima)`
[ERROR] this task or one of its parent failed!
[ERROR] overridden task result to broken:yanked
[ERROR] caused by: crate andrew-pa/rmaxima depends on yanked crates
[ERROR]