[INFO] cloning repository discordance/rust_sampler_test
[INFO] running `"git" "clone" "--bare" "git://github.com/discordance/rust_sampler_test.git" "work/cache/sources/gh/discordance/rust_sampler_test"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/discordance/rust_sampler_test'...
[INFO] running `"git" "clone" "work/cache/sources/gh/discordance/rust_sampler_test" "work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/discordance/rust_sampler_test"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/discordance/rust_sampler_test'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/discordance/rust_sampler_test" "work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/discordance/rust_sampler_test"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/discordance/rust_sampler_test'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6096dd4f3dc23bff4f1c25dc32d2fdeacd3e7d3e
[INFO] sha for GitHub repo discordance/rust_sampler_test: 6096dd4f3dc23bff4f1c25dc32d2fdeacd3e7d3e
[INFO] validating manifest of discordance/rust_sampler_test 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 discordance/rust_sampler_test 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 discordance/rust_sampler_test
[INFO] removed path dependency aubio from discordance/rust_sampler_test
[INFO] finished frobbing discordance/rust_sampler_test
[INFO] frobbed toml for discordance/rust_sampler_test written to work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/discordance/rust_sampler_test/Cargo.toml
[INFO] started frobbing discordance/rust_sampler_test
[INFO] removed path dependency aubio from discordance/rust_sampler_test
[INFO] finished frobbing discordance/rust_sampler_test
[INFO] frobbed toml for discordance/rust_sampler_test written to work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/discordance/rust_sampler_test/Cargo.toml
[INFO] crate discordance/rust_sampler_test 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]     Updating crates.io index
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/discordance/rust_sampler_test/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