[INFO] updating cached repository aprilwade/randomprime
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/aprilwade/randomprime
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/aprilwade/randomprime" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/aprilwade/randomprime"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/aprilwade/randomprime'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/aprilwade/randomprime" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/aprilwade/randomprime"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/aprilwade/randomprime'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ce8c0a79a6e4ddb9c12734a83dfd8b0af0ff454e
[INFO] sha for GitHub repo aprilwade/randomprime: ce8c0a79a6e4ddb9c12734a83dfd8b0af0ff454e
[INFO] validating manifest of aprilwade/randomprime on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of aprilwade/randomprime on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing aprilwade/randomprime
[INFO] removed workspace from aprilwade/randomprime
[INFO] removed path dependency reader_writer from aprilwade/randomprime
[INFO] removed path dependency structs from aprilwade/randomprime
[INFO] finished frobbing aprilwade/randomprime
[INFO] frobbed toml for aprilwade/randomprime written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/aprilwade/randomprime/Cargo.toml
[INFO] started frobbing aprilwade/randomprime
[INFO] removed workspace from aprilwade/randomprime
[INFO] removed path dependency reader_writer from aprilwade/randomprime
[INFO] removed path dependency structs from aprilwade/randomprime
[INFO] finished frobbing aprilwade/randomprime
[INFO] frobbed toml for aprilwade/randomprime written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/aprilwade/randomprime/Cargo.toml
[INFO] crate aprilwade/randomprime has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on the registry index
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: no matching package named `reader_writer` found
[INFO] [stderr] location searched: registry `https://github.com/rust-lang/crates.io-index`
[INFO] [stderr] perhaps you meant: reader-writer
[INFO] [stderr] required by package `randomprime v0.2.3 (/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/aprilwade/randomprime)`
[ERROR] this task or one of its parent failed!
[ERROR] command `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed