[INFO] updating cached repository Ryan1729/features_across_multiple_crates
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Ryan1729/features_across_multiple_crates
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Ryan1729/features_across_multiple_crates" "work/ex/beta-1.38-1/sources/1.37.0/gh/Ryan1729/features_across_multiple_crates"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Ryan1729/features_across_multiple_crates'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Ryan1729/features_across_multiple_crates" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Ryan1729/features_across_multiple_crates"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Ryan1729/features_across_multiple_crates'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ae84e8a2424c72d25c4ac8a4b814b1420d97e8f6
[INFO] sha for GitHub repo Ryan1729/features_across_multiple_crates: ae84e8a2424c72d25c4ac8a4b814b1420d97e8f6
[INFO] validating manifest of Ryan1729/features_across_multiple_crates on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Ryan1729/features_across_multiple_crates on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Ryan1729/features_across_multiple_crates
[INFO] removed path dependency common from Ryan1729/features_across_multiple_crates
[INFO] removed path dependency middle from Ryan1729/features_across_multiple_crates
[INFO] finished frobbing Ryan1729/features_across_multiple_crates
[INFO] frobbed toml for Ryan1729/features_across_multiple_crates written to work/ex/beta-1.38-1/sources/1.37.0/gh/Ryan1729/features_across_multiple_crates/Cargo.toml
[INFO] started frobbing Ryan1729/features_across_multiple_crates
[INFO] removed path dependency common from Ryan1729/features_across_multiple_crates
[INFO] removed path dependency middle from Ryan1729/features_across_multiple_crates
[INFO] finished frobbing Ryan1729/features_across_multiple_crates
[INFO] frobbed toml for Ryan1729/features_across_multiple_crates written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Ryan1729/features_across_multiple_crates/Cargo.toml
[INFO] crate Ryan1729/features_across_multiple_crates already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: failed to select a version for `common`.
[INFO] [stderr]     ... required by package `features_across_multiple_crates v0.1.0 (/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Ryan1729/features_across_multiple_crates)`
[INFO] [stderr] versions that meet the requirements `*` are: 0.1.0
[INFO] [stderr] 
[INFO] [stderr] the package `features_across_multiple_crates` depends on `common`, with features: `invariant-checking, logging` but `common` does not have these features.
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `common` 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" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed