[INFO] crate whos-online 0.1.2 is already in cache
[INFO] extracting crate whos-online 0.1.2 into work/ex/clippy-test-run/sources/stable/reg/whos-online/0.1.2
[INFO] extracting crate whos-online 0.1.2 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/whos-online/0.1.2
[INFO] validating manifest of whos-online-0.1.2 on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of whos-online-0.1.2 on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing whos-online-0.1.2
[INFO] finished frobbing whos-online-0.1.2
[INFO] frobbed toml for whos-online-0.1.2 written to work/ex/clippy-test-run/sources/stable/reg/whos-online/0.1.2/Cargo.toml
[INFO] started frobbing whos-online-0.1.2
[INFO] finished frobbing whos-online-0.1.2
[INFO] frobbed toml for whos-online-0.1.2 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/whos-online/0.1.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr] error: failed to select a version for the requirement `ring = "^0.11.0"`
[INFO] [stderr]   candidate versions found which didn't match: 0.14.3, 0.14.2, 0.14.1, ...
[INFO] [stderr]   location searched: crates.io index
[INFO] [stderr] required by package `cookie v0.9.1`
[INFO] [stderr]     ... which is depended on by `rocket v0.3.0`
[INFO] [stderr]     ... which is depended on by `whos-online v0.1.2 (/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/whos-online/0.1.2)`
[ERROR] this task or one of its parent failed!
[ERROR] command `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` failed