[INFO] updating cached repository gkbrk/RustOre-Classic
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/gkbrk/RustOre-Classic
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/gkbrk/RustOre-Classic" "work/ex/beta-1.38-1/sources/1.37.0/gh/gkbrk/RustOre-Classic"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/gkbrk/RustOre-Classic'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/gkbrk/RustOre-Classic" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gkbrk/RustOre-Classic"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gkbrk/RustOre-Classic'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0ceb927ad06c5a6905811ba56137abff6b5ceb66
[INFO] sha for GitHub repo gkbrk/RustOre-Classic: 0ceb927ad06c5a6905811ba56137abff6b5ceb66
[INFO] validating manifest of gkbrk/RustOre-Classic 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 gkbrk/RustOre-Classic 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 gkbrk/RustOre-Classic
[INFO] finished frobbing gkbrk/RustOre-Classic
[INFO] frobbed toml for gkbrk/RustOre-Classic written to work/ex/beta-1.38-1/sources/1.37.0/gh/gkbrk/RustOre-Classic/Cargo.toml
[INFO] started frobbing gkbrk/RustOre-Classic
[INFO] finished frobbing gkbrk/RustOre-Classic
[INFO] frobbed toml for gkbrk/RustOre-Classic written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gkbrk/RustOre-Classic/Cargo.toml
[INFO] crate gkbrk/RustOre-Classic 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] error: no matching package named `curl-sys` found
[INFO] [stderr] location searched: https://github.com/carllerche/curl-rust#6f4d66ed
[INFO] [stderr] required by package `curl v0.1.4 (https://github.com/carllerche/curl-rust#6f4d66ed)`
[INFO] [stderr]     ... which is depended on by `RustOre-Classic v0.0.1 (/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/gkbrk/RustOre-Classic)`
[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