[INFO] updating cached repository redox-os/ion
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/redox-os/ion
[INFO] [stderr]  * branch              HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/redox-os/ion" "work/ex/beta-1.38-1/sources/1.37.0/gh/redox-os/ion"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/redox-os/ion'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/redox-os/ion" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/redox-os/ion"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/redox-os/ion'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 71db07269cc30924731ac58a135b1f57f63a7d82
[INFO] sha for GitHub repo redox-os/ion: 71db07269cc30924731ac58a135b1f57f63a7d82
[INFO] validating manifest of redox-os/ion 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 redox-os/ion 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 redox-os/ion
[INFO] removed workspace from redox-os/ion
[INFO] removed path dependency ion-ranges from redox-os/ion
[INFO] removed path dependency ion_braces from redox-os/ion
[INFO] removed path dependency ion_builtins from redox-os/ion
[INFO] removed path dependency ion_lexers from redox-os/ion
[INFO] removed path dependency ion_sys from redox-os/ion
[INFO] finished frobbing redox-os/ion
[INFO] frobbed toml for redox-os/ion written to work/ex/beta-1.38-1/sources/1.37.0/gh/redox-os/ion/Cargo.toml
[INFO] started frobbing redox-os/ion
[INFO] removed workspace from redox-os/ion
[INFO] removed path dependency ion-ranges from redox-os/ion
[INFO] removed path dependency ion_braces from redox-os/ion
[INFO] removed path dependency ion_builtins from redox-os/ion
[INFO] removed path dependency ion_lexers from redox-os/ion
[INFO] removed path dependency ion_sys from redox-os/ion
[INFO] finished frobbing redox-os/ion
[INFO] frobbed toml for redox-os/ion written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/redox-os/ion/Cargo.toml
[INFO] crate redox-os/ion 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: no matching package named `ion-ranges` found
[INFO] [stderr] location searched: registry `https://github.com/rust-lang/crates.io-index`
[INFO] [stderr] required by package `ion-shell v1.0.0-alpha (/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/redox-os/ion)`
[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