[INFO] updating cached repository gifnksm/ProjectEulerRust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/gifnksm/ProjectEulerRust
[INFO] [stderr]  * branch              HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/gifnksm/ProjectEulerRust" "work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/gh/gifnksm/ProjectEulerRust"`
[INFO] [stderr] Cloning into 'work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/gh/gifnksm/ProjectEulerRust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/gifnksm/ProjectEulerRust" "work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/gifnksm/ProjectEulerRust"`
[INFO] [stderr] Cloning into 'work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/gifnksm/ProjectEulerRust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c4bc0e0392f95ce73da1afe94803c77599b708ee
[INFO] sha for GitHub repo gifnksm/ProjectEulerRust: c4bc0e0392f95ce73da1afe94803c77599b708ee
[INFO] validating manifest of gifnksm/ProjectEulerRust on toolchain master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of gifnksm/ProjectEulerRust on toolchain try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+af22dfc7f56a5057c6b6120a65c74e7b6c1530af-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing gifnksm/ProjectEulerRust
[INFO] removed workspace from gifnksm/ProjectEulerRust
[INFO] removed path dependency cont_frac from gifnksm/ProjectEulerRust
[INFO] removed path dependency integer from gifnksm/ProjectEulerRust
[INFO] removed path dependency iter from gifnksm/ProjectEulerRust
[INFO] removed path dependency playing_card from gifnksm/ProjectEulerRust
[INFO] removed path dependency prime from gifnksm/ProjectEulerRust
[INFO] removed path dependency seq from gifnksm/ProjectEulerRust
[INFO] finished frobbing gifnksm/ProjectEulerRust
[INFO] frobbed toml for gifnksm/ProjectEulerRust written to work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/gh/gifnksm/ProjectEulerRust/Cargo.toml
[INFO] started frobbing gifnksm/ProjectEulerRust
[INFO] removed workspace from gifnksm/ProjectEulerRust
[INFO] removed path dependency cont_frac from gifnksm/ProjectEulerRust
[INFO] removed path dependency integer from gifnksm/ProjectEulerRust
[INFO] removed path dependency iter from gifnksm/ProjectEulerRust
[INFO] removed path dependency playing_card from gifnksm/ProjectEulerRust
[INFO] removed path dependency prime from gifnksm/ProjectEulerRust
[INFO] removed path dependency seq from gifnksm/ProjectEulerRust
[INFO] finished frobbing gifnksm/ProjectEulerRust
[INFO] frobbed toml for gifnksm/ProjectEulerRust written to work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/gifnksm/ProjectEulerRust/Cargo.toml
[INFO] crate gifnksm/ProjectEulerRust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: no matching package named `cont_frac` found
[INFO] [stderr] location searched: registry `https://github.com/rust-lang/crates.io-index`
[INFO] [stderr] required by package `ProjectEulerRust v0.0.1 (/mnt/big/crater/work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/gh/gifnksm/ProjectEulerRust)`
[ERROR] this task or one of its parent failed!
[ERROR] command `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed