[INFO] cloning repository happenslol/tidy
[INFO] running `"git" "clone" "--bare" "git://github.com/happenslol/tidy.git" "work/cache/sources/gh/happenslol/tidy"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/happenslol/tidy'...
[INFO] running `"git" "clone" "work/cache/sources/gh/happenslol/tidy" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/happenslol/tidy"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/happenslol/tidy'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/happenslol/tidy" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/happenslol/tidy"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/happenslol/tidy'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a8ead478bcf4239102446001e6bab168348f557d
[INFO] sha for GitHub repo happenslol/tidy: a8ead478bcf4239102446001e6bab168348f557d
[INFO] validating manifest of happenslol/tidy on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of happenslol/tidy on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing happenslol/tidy
[INFO] finished frobbing happenslol/tidy
[INFO] frobbed toml for happenslol/tidy written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/happenslol/tidy/Cargo.toml
[INFO] started frobbing happenslol/tidy
[INFO] finished frobbing happenslol/tidy
[INFO] frobbed toml for happenslol/tidy written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/happenslol/tidy/Cargo.toml
[INFO] crate happenslol/tidy already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: checksum for `xcb-util v0.2.0` changed between lock files
[INFO] [stderr] 
[INFO] [stderr] this could be indicative of a few possible errors:
[INFO] [stderr] 
[INFO] [stderr]     * the lock file is corrupt
[INFO] [stderr]     * a replacement source in use (e.g., a mirror) returned a different checksum
[INFO] [stderr]     * the source itself may be corrupt in one way or another
[INFO] [stderr] 
[INFO] [stderr] unable to verify that `xcb-util v0.2.0` is the same as when the lockfile was generated
[INFO] [stderr] 
[ERROR] this task or one of its parent failed!
[ERROR] command `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed