[INFO] updating cached repository svevang/open-analytics
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/svevang/open-analytics
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/svevang/open-analytics" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/svevang/open-analytics"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/svevang/open-analytics'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/svevang/open-analytics" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/svevang/open-analytics"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/svevang/open-analytics'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 33488e4a3d7f420eb89f5bc5f57871184f716bff
[INFO] sha for GitHub repo svevang/open-analytics: 33488e4a3d7f420eb89f5bc5f57871184f716bff
[INFO] validating manifest of svevang/open-analytics on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of svevang/open-analytics on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing svevang/open-analytics
[INFO] finished frobbing svevang/open-analytics
[INFO] frobbed toml for svevang/open-analytics written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/svevang/open-analytics/Cargo.toml
[INFO] started frobbing svevang/open-analytics
[INFO] finished frobbing svevang/open-analytics
[INFO] frobbed toml for svevang/open-analytics written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/svevang/open-analytics/Cargo.toml
[INFO] crate svevang/open-analytics already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: failed to select a version for `postgres`.
[INFO] [stderr]     ... required by package `open_analytics v0.0.1 (/mnt/big/crater/work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/svevang/open-analytics)`
[INFO] [stderr] versions that meet the requirements `= 0.9.6` are: 0.9.6
[INFO] [stderr] 
[INFO] [stderr] the package `open_analytics` depends on `postgres`, with features: `rustc-serialize` but `postgres` does not have these features.
[INFO] [stderr]  It has a required dependency with that name, but only optional dependencies can be used as features.
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `postgres` 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" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed