[INFO] cloning repository snbn/mrbind
[INFO] running `"git" "clone" "--bare" "git://github.com/snbn/mrbind.git" "work/cache/sources/gh/snbn/mrbind"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/snbn/mrbind'...
[INFO] running `"git" "clone" "work/cache/sources/gh/snbn/mrbind" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/snbn/mrbind"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/snbn/mrbind'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/snbn/mrbind" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/snbn/mrbind"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/snbn/mrbind'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 574bd548ddb26fb4855e2bb7ccfc3a2f11a56297
[INFO] sha for GitHub repo snbn/mrbind: 574bd548ddb26fb4855e2bb7ccfc3a2f11a56297
[INFO] validating manifest of snbn/mrbind on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of snbn/mrbind on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing snbn/mrbind
[INFO] removed path dependency mruby-sys from snbn/mrbind
[INFO] finished frobbing snbn/mrbind
[INFO] frobbed toml for snbn/mrbind written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/snbn/mrbind/Cargo.toml
[INFO] started frobbing snbn/mrbind
[INFO] removed path dependency mruby-sys from snbn/mrbind
[INFO] finished frobbing snbn/mrbind
[INFO] frobbed toml for snbn/mrbind written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/snbn/mrbind/Cargo.toml
[INFO] crate snbn/mrbind already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: failed to select a version for `mruby-sys`.
[INFO] [stderr]     ... required by package `mrbind v0.1.0 (/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/snbn/mrbind)`
[INFO] [stderr] versions that meet the requirements `*` are: 0.2.0, 0.1.1, 0.1.0
[INFO] [stderr] 
[INFO] [stderr] the package `mrbind` depends on `mruby-sys`, with features: `error, compiler` but `mruby-sys` does not have these features.
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `mruby-sys` which could resolve this conflict
[ERROR] this task or one of its parent failed!
[ERROR] command `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed