[INFO] updating cached repository cwwhitman/puffwm
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/cwwhitman/puffwm
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/cwwhitman/puffwm" "work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/cwwhitman/puffwm"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/cwwhitman/puffwm'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cwwhitman/puffwm" "work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/cwwhitman/puffwm"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/cwwhitman/puffwm'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5c6fd19b0b1446c0344a9245394d53d97be70f99
[INFO] sha for GitHub repo cwwhitman/puffwm: 5c6fd19b0b1446c0344a9245394d53d97be70f99
[INFO] validating manifest of cwwhitman/puffwm on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of cwwhitman/puffwm on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing cwwhitman/puffwm
[INFO] finished frobbing cwwhitman/puffwm
[INFO] frobbed toml for cwwhitman/puffwm written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/cwwhitman/puffwm/Cargo.toml
[INFO] started frobbing cwwhitman/puffwm
[INFO] finished frobbing cwwhitman/puffwm
[INFO] frobbed toml for cwwhitman/puffwm written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/cwwhitman/puffwm/Cargo.toml
[INFO] crate cwwhitman/puffwm already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: failed to select a version for `x11`.
[INFO] [stderr]     ... required by package `puffwm v0.1.0 (/mnt/big/crater/work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/cwwhitman/puffwm)`
[INFO] [stderr] versions that meet the requirements `= 2.17.5` are: 2.17.5
[INFO] [stderr] 
[INFO] [stderr] the package `puffwm` depends on `x11`, with features: `keysym` but `x11` does not have these features.
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `x11` 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" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed