[INFO] updating cached repository jjpe/spoofax_collector
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jjpe/spoofax_collector
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jjpe/spoofax_collector" "work/ex/pr-59928/sources/master#df25d79a33b0c82b716699a75a41bfdc6089850a/gh/jjpe/spoofax_collector"`
[INFO] [stderr] Cloning into 'work/ex/pr-59928/sources/master#df25d79a33b0c82b716699a75a41bfdc6089850a/gh/jjpe/spoofax_collector'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jjpe/spoofax_collector" "work/ex/pr-59928/sources/try#424a4ae163d6517f301cd4048a4b5dd785be5b2f/gh/jjpe/spoofax_collector"`
[INFO] [stderr] Cloning into 'work/ex/pr-59928/sources/try#424a4ae163d6517f301cd4048a4b5dd785be5b2f/gh/jjpe/spoofax_collector'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2524f6234079eac9ab2cf05a8b6be4b170f18002
[INFO] sha for GitHub repo jjpe/spoofax_collector: 2524f6234079eac9ab2cf05a8b6be4b170f18002
[INFO] validating manifest of jjpe/spoofax_collector on toolchain master#df25d79a33b0c82b716699a75a41bfdc6089850a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+df25d79a33b0c82b716699a75a41bfdc6089850a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jjpe/spoofax_collector on toolchain try#424a4ae163d6517f301cd4048a4b5dd785be5b2f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+424a4ae163d6517f301cd4048a4b5dd785be5b2f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jjpe/spoofax_collector
[INFO] finished frobbing jjpe/spoofax_collector
[INFO] frobbed toml for jjpe/spoofax_collector written to work/ex/pr-59928/sources/master#df25d79a33b0c82b716699a75a41bfdc6089850a/gh/jjpe/spoofax_collector/Cargo.toml
[INFO] started frobbing jjpe/spoofax_collector
[INFO] finished frobbing jjpe/spoofax_collector
[INFO] frobbed toml for jjpe/spoofax_collector written to work/ex/pr-59928/sources/try#424a4ae163d6517f301cd4048a4b5dd785be5b2f/gh/jjpe/spoofax_collector/Cargo.toml
[INFO] crate jjpe/spoofax_collector already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+df25d79a33b0c82b716699a75a41bfdc6089850a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Updating git repository `https://github.com/jjpe/libcereal.git`
[INFO] [stderr] error: no matching package named `cereal` found
[INFO] [stderr] location searched: https://github.com/jjpe/libcereal.git
[INFO] [stderr] required by package `spoofax_collector v0.4.0 (/mnt/big/crater/work/ex/pr-59928/sources/master#df25d79a33b0c82b716699a75a41bfdc6089850a/gh/jjpe/spoofax_collector)`
[ERROR] this task or one of its parent failed!
[ERROR] command `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+df25d79a33b0c82b716699a75a41bfdc6089850a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed