[INFO] updating cached repository amilajack/rust-algos
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/amilajack/rust-algos
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/amilajack/rust-algos" "work/ex/clippy-test-run/sources/stable/gh/amilajack/rust-algos"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/amilajack/rust-algos'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/amilajack/rust-algos" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/amilajack/rust-algos"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/amilajack/rust-algos'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3ddc9195f0689b631bfdd97dd878adb04574f7b9
[INFO] sha for GitHub repo amilajack/rust-algos: 3ddc9195f0689b631bfdd97dd878adb04574f7b9
[INFO] validating manifest of amilajack/rust-algos 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 amilajack/rust-algos 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 amilajack/rust-algos
[INFO] finished frobbing amilajack/rust-algos
[INFO] frobbed toml for amilajack/rust-algos written to work/ex/clippy-test-run/sources/stable/gh/amilajack/rust-algos/Cargo.toml
[INFO] started frobbing amilajack/rust-algos
[INFO] finished frobbing amilajack/rust-algos
[INFO] frobbed toml for amilajack/rust-algos written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/amilajack/rust-algos/Cargo.toml
[INFO] crate amilajack/rust-algos 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 amilajack/rust-algos against stable+rustflags=-Dclippy::into_iter_on_array for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-0/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/amilajack/rust-algos:/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 -Dclippy::into_iter_on_array" "-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] 12510405daa84a02b878e65bf71ba0edc1056cbca3a5cdd44d1dcabfb307896f
[INFO] running `"docker" "start" "-a" "12510405daa84a02b878e65bf71ba0edc1056cbca3a5cdd44d1dcabfb307896f"`
[INFO] [stderr]     Checking algos v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `is_prime`
[INFO] [stderr]   --> src/math.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub fn is_prime(a: u32) -> bool {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: taken reference of right operand
[INFO] [stderr]   --> src/search.rs:13:12
[INFO] [stderr]    |
[INFO] [stderr] 13 |         if middle_value < &item {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^-----
[INFO] [stderr]    |                           |
[INFO] [stderr]    |                           help: use the right value directly: `item`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::op_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#op_ref
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to match on a boolean expression
[INFO] [stderr]   --> src/math.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 | /         match euclidean_gcd(a, b) == 1 {
[INFO] [stderr] 27 | |             true => continue,
[INFO] [stderr] 28 | |             false => return false
[INFO] [stderr] 29 | |         }
[INFO] [stderr]    | |_________^ help: consider using an if/else expression: `if euclidean_gcd(a, b) == 1 { continue } else { return false }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_bool)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_bool
[INFO] [stderr] 
[INFO] [stderr] warning: taken reference of right operand
[INFO] [stderr]   --> src/search.rs:13:12
[INFO] [stderr]    |
[INFO] [stderr] 13 |         if middle_value < &item {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^-----
[INFO] [stderr]    |                           |
[INFO] [stderr]    |                           help: use the right value directly: `item`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::op_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#op_ref
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to match on a boolean expression
[INFO] [stderr]   --> src/math.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 | /         match euclidean_gcd(a, b) == 1 {
[INFO] [stderr] 27 | |             true => continue,
[INFO] [stderr] 28 | |             false => return false
[INFO] [stderr] 29 | |         }
[INFO] [stderr]    | |_________^ help: consider using an if/else expression: `if euclidean_gcd(a, b) == 1 { continue } else { return false }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_bool)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_bool
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `"docker" "inspect" "12510405daa84a02b878e65bf71ba0edc1056cbca3a5cdd44d1dcabfb307896f"`
[INFO] running `"docker" "rm" "-f" "12510405daa84a02b878e65bf71ba0edc1056cbca3a5cdd44d1dcabfb307896f"`
[INFO] [stdout] 12510405daa84a02b878e65bf71ba0edc1056cbca3a5cdd44d1dcabfb307896f