[INFO] cloning repository fast-french/erf
[INFO] running `"git" "clone" "--bare" "git://github.com/fast-french/erf.git" "work/cache/sources/gh/fast-french/erf"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/fast-french/erf'...
[INFO] running `"git" "clone" "work/cache/sources/gh/fast-french/erf" "work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/fast-french/erf"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/fast-french/erf'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/fast-french/erf" "work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/fast-french/erf"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/fast-french/erf'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3ca87e2f26e8578e902ee8460905c63d9f0c5e90
[INFO] sha for GitHub repo fast-french/erf: 3ca87e2f26e8578e902ee8460905c63d9f0c5e90
[INFO] validating manifest of fast-french/erf on toolchain master#c0086b9e8972fef9fd4af24bae20d45021ed06c6
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of fast-french/erf on toolchain try#290ac7b29f41ff9fa5232f9a1116ea71a3501063
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing fast-french/erf
[INFO] finished frobbing fast-french/erf
[INFO] frobbed toml for fast-french/erf written to work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/fast-french/erf/Cargo.toml
[INFO] started frobbing fast-french/erf
[INFO] finished frobbing fast-french/erf
[INFO] frobbed toml for fast-french/erf written to work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/fast-french/erf/Cargo.toml
[INFO] crate fast-french/erf has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/fast-french/erf/Cargo.lock needs to be updated but --locked was passed to prevent this
[ERROR] this task or one of its parent failed!
[ERROR] command `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed