[INFO] updating cached repository buntine/rust-smart-pointers-cow
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/buntine/rust-smart-pointers-cow
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/buntine/rust-smart-pointers-cow" "work/ex/clippy-test-run/sources/stable/gh/buntine/rust-smart-pointers-cow"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/buntine/rust-smart-pointers-cow'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/buntine/rust-smart-pointers-cow" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/buntine/rust-smart-pointers-cow"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/buntine/rust-smart-pointers-cow'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 17ac1f11b17a1daf1b5d876439845a09acc61ee4
[INFO] sha for GitHub repo buntine/rust-smart-pointers-cow: 17ac1f11b17a1daf1b5d876439845a09acc61ee4
[INFO] validating manifest of buntine/rust-smart-pointers-cow 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 buntine/rust-smart-pointers-cow 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 buntine/rust-smart-pointers-cow
[INFO] finished frobbing buntine/rust-smart-pointers-cow
[INFO] frobbed toml for buntine/rust-smart-pointers-cow written to work/ex/clippy-test-run/sources/stable/gh/buntine/rust-smart-pointers-cow/Cargo.toml
[INFO] started frobbing buntine/rust-smart-pointers-cow
[INFO] finished frobbing buntine/rust-smart-pointers-cow
[INFO] frobbed toml for buntine/rust-smart-pointers-cow written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/buntine/rust-smart-pointers-cow/Cargo.toml
[INFO] crate buntine/rust-smart-pointers-cow has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting buntine/rust-smart-pointers-cow against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-1/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/buntine/rust-smart-pointers-cow:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 84c84cb99f5faca6516b944633e2e3dd35b8b86fea83af34ac84c7d92a2b6202
[INFO] running `"docker" "start" "-a" "84c84cb99f5faca6516b944633e2e3dd35b8b86fea83af34ac84c7d92a2b6202"`
[INFO] [stderr]     Checking cow v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: this `.fold` can be written more succinctly using another method
[INFO] [stderr]   --> src/main.rs:37:15
[INFO] [stderr]    |
[INFO] [stderr] 37 |       lst.iter()
[INFO] [stderr]    |  _______________^
[INFO] [stderr] 38 | |        .fold(0, |acc, &n| acc + n)
[INFO] [stderr]    | |__________________________________^ help: try: `.sum()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unnecessary_fold)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_fold
[INFO] [stderr] 
[INFO] [stderr] warning: this `.fold` can be written more succinctly using another method
[INFO] [stderr]   --> src/main.rs:37:15
[INFO] [stderr]    |
[INFO] [stderr] 37 |       lst.iter()
[INFO] [stderr]    |  _______________^
[INFO] [stderr] 38 | |        .fold(0, |acc, &n| acc + n)
[INFO] [stderr]    | |__________________________________^ help: try: `.sum()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unnecessary_fold)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_fold
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.23s
[INFO] running `"docker" "inspect" "84c84cb99f5faca6516b944633e2e3dd35b8b86fea83af34ac84c7d92a2b6202"`
[INFO] running `"docker" "rm" "-f" "84c84cb99f5faca6516b944633e2e3dd35b8b86fea83af34ac84c7d92a2b6202"`
[INFO] [stdout] 84c84cb99f5faca6516b944633e2e3dd35b8b86fea83af34ac84c7d92a2b6202