[INFO] updating cached repository s7jones/Rust-Wondrous-Numbers
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/s7jones/Rust-Wondrous-Numbers
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/s7jones/Rust-Wondrous-Numbers" "work/ex/clippy-test-run/sources/stable/gh/s7jones/Rust-Wondrous-Numbers"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/s7jones/Rust-Wondrous-Numbers'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/s7jones/Rust-Wondrous-Numbers" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/s7jones/Rust-Wondrous-Numbers"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/s7jones/Rust-Wondrous-Numbers'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9896f74b7d1e710e701447ad5fa0e23dd6621493
[INFO] sha for GitHub repo s7jones/Rust-Wondrous-Numbers: 9896f74b7d1e710e701447ad5fa0e23dd6621493
[INFO] validating manifest of s7jones/Rust-Wondrous-Numbers 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 s7jones/Rust-Wondrous-Numbers 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 s7jones/Rust-Wondrous-Numbers
[INFO] finished frobbing s7jones/Rust-Wondrous-Numbers
[INFO] frobbed toml for s7jones/Rust-Wondrous-Numbers written to work/ex/clippy-test-run/sources/stable/gh/s7jones/Rust-Wondrous-Numbers/Cargo.toml
[INFO] started frobbing s7jones/Rust-Wondrous-Numbers
[INFO] finished frobbing s7jones/Rust-Wondrous-Numbers
[INFO] frobbed toml for s7jones/Rust-Wondrous-Numbers written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/s7jones/Rust-Wondrous-Numbers/Cargo.toml
[INFO] crate s7jones/Rust-Wondrous-Numbers 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 s7jones/Rust-Wondrous-Numbers 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-5/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/s7jones/Rust-Wondrous-Numbers:/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] 36f76ec4a0c1ae42f12a2f92143458aadc584b70e40323625f1a349db7e08015
[INFO] running `"docker" "start" "-a" "36f76ec4a0c1ae42f12a2f92143458aadc584b70e40323625f1a349db7e08015"`
[INFO] [stderr]     Checking collatz_conjecture v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: called `ok().expect()` on a Result value. You can call `expect` directly on the `Result`
[INFO] [stderr]   --> src/main.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     io::stdout().flush().ok().expect("didn't flush stdout");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ok_expect)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ok_expect
[INFO] [stderr] 
[INFO] [stderr] warning: called `ok().expect()` on a Result value. You can call `expect` directly on the `Result`
[INFO] [stderr]   --> src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | /     io::stdin()
[INFO] [stderr] 17 | |         .read_line(&mut menu)
[INFO] [stderr] 18 | |         .ok()
[INFO] [stderr] 19 | |         .expect("failed to read line");
[INFO] [stderr]    | |______________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ok_expect
[INFO] [stderr] 
[INFO] [stderr] warning: called `ok().expect()` on a Result value. You can call `expect` directly on the `Result`
[INFO] [stderr]   --> src/main.rs:21:20
[INFO] [stderr]    |
[INFO] [stderr] 21 |       let menu: u8 = menu.trim()
[INFO] [stderr]    |  ____________________^
[INFO] [stderr] 22 | |         .parse()
[INFO] [stderr] 23 | |         .ok()
[INFO] [stderr] 24 | |         .expect("failed to convert to number");
[INFO] [stderr]    | |______________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ok_expect
[INFO] [stderr] 
[INFO] [stderr] warning: called `ok().expect()` on a Result value. You can call `expect` directly on the `Result`
[INFO] [stderr]   --> src/main.rs:31:13
[INFO] [stderr]    |
[INFO] [stderr] 31 |             io::stdout().flush().ok().expect("didn't flush stdout");
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ok_expect
[INFO] [stderr] 
[INFO] [stderr] warning: called `ok().expect()` on a Result value. You can call `expect` directly on the `Result`
[INFO] [stderr]   --> src/main.rs:35:13
[INFO] [stderr]    |
[INFO] [stderr] 35 | /             io::stdin()
[INFO] [stderr] 36 | |                 .read_line(&mut number)
[INFO] [stderr] 37 | |                 .ok()
[INFO] [stderr] 38 | |                 .expect("failed to read line");
[INFO] [stderr]    | |______________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ok_expect
[INFO] [stderr] 
[INFO] [stderr] warning: called `ok().expect()` on a Result value. You can call `expect` directly on the `Result`
[INFO] [stderr]   --> src/main.rs:40:35
[INFO] [stderr]    |
[INFO] [stderr] 40 |               let mut number: u64 = number.trim()
[INFO] [stderr]    |  ___________________________________^
[INFO] [stderr] 41 | |                 .parse()
[INFO] [stderr] 42 | |                 .ok()
[INFO] [stderr] 43 | |                 .expect("failed to convert to number");
[INFO] [stderr]    | |______________________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ok_expect
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/main.rs:56:21
[INFO] [stderr]    |
[INFO] [stderr] 56 |                     number = number / 2;
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^ help: replace it with: `number /= 2`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: called `ok().expect()` on a Result value. You can call `expect` directly on the `Result`
[INFO] [stderr]   --> src/main.rs:65:13
[INFO] [stderr]    |
[INFO] [stderr] 65 |             io::stdout().flush().ok().expect("didn't flush stdout");
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ok_expect
[INFO] [stderr] 
[INFO] [stderr] warning: called `ok().expect()` on a Result value. You can call `expect` directly on the `Result`
[INFO] [stderr]   --> src/main.rs:69:13
[INFO] [stderr]    |
[INFO] [stderr] 69 | /             io::stdin()
[INFO] [stderr] 70 | |                 .read_line(&mut number)
[INFO] [stderr] 71 | |                 .ok()
[INFO] [stderr] 72 | |                 .expect("failed to read line");
[INFO] [stderr]    | |______________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ok_expect
[INFO] [stderr] 
[INFO] [stderr] warning: called `ok().expect()` on a Result value. You can call `expect` directly on the `Result`
[INFO] [stderr]   --> src/main.rs:74:35
[INFO] [stderr]    |
[INFO] [stderr] 74 |               let mut number: u64 = number.trim()
[INFO] [stderr]    |  ___________________________________^
[INFO] [stderr] 75 | |                 .parse()
[INFO] [stderr] 76 | |                 .ok()
[INFO] [stderr] 77 | |                 .expect("failed to convert to number");
[INFO] [stderr]    | |______________________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ok_expect
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/main.rs:94:21
[INFO] [stderr]    |
[INFO] [stderr] 94 |                     number = number / 2;
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^ help: replace it with: `number /= 2`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: called `ok().expect()` on a Result value. You can call `expect` directly on the `Result`
[INFO] [stderr]   --> src/main.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     io::stdout().flush().ok().expect("didn't flush stdout");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ok_expect)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ok_expect
[INFO] [stderr] 
[INFO] [stderr] warning: called `ok().expect()` on a Result value. You can call `expect` directly on the `Result`
[INFO] [stderr]   --> src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | /     io::stdin()
[INFO] [stderr] 17 | |         .read_line(&mut menu)
[INFO] [stderr] 18 | |         .ok()
[INFO] [stderr] 19 | |         .expect("failed to read line");
[INFO] [stderr]    | |______________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ok_expect
[INFO] [stderr] 
[INFO] [stderr] warning: called `ok().expect()` on a Result value. You can call `expect` directly on the `Result`
[INFO] [stderr]   --> src/main.rs:21:20
[INFO] [stderr]    |
[INFO] [stderr] 21 |       let menu: u8 = menu.trim()
[INFO] [stderr]    |  ____________________^
[INFO] [stderr] 22 | |         .parse()
[INFO] [stderr] 23 | |         .ok()
[INFO] [stderr] 24 | |         .expect("failed to convert to number");
[INFO] [stderr]    | |______________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ok_expect
[INFO] [stderr] 
[INFO] [stderr] warning: called `ok().expect()` on a Result value. You can call `expect` directly on the `Result`
[INFO] [stderr]   --> src/main.rs:31:13
[INFO] [stderr]    |
[INFO] [stderr] 31 |             io::stdout().flush().ok().expect("didn't flush stdout");
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ok_expect
[INFO] [stderr] 
[INFO] [stderr] warning: called `ok().expect()` on a Result value. You can call `expect` directly on the `Result`
[INFO] [stderr]   --> src/main.rs:35:13
[INFO] [stderr]    |
[INFO] [stderr] 35 | /             io::stdin()
[INFO] [stderr] 36 | |                 .read_line(&mut number)
[INFO] [stderr] 37 | |                 .ok()
[INFO] [stderr] 38 | |                 .expect("failed to read line");
[INFO] [stderr]    | |______________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ok_expect
[INFO] [stderr] 
[INFO] [stderr] warning: called `ok().expect()` on a Result value. You can call `expect` directly on the `Result`
[INFO] [stderr]   --> src/main.rs:40:35
[INFO] [stderr]    |
[INFO] [stderr] 40 |               let mut number: u64 = number.trim()
[INFO] [stderr]    |  ___________________________________^
[INFO] [stderr] 41 | |                 .parse()
[INFO] [stderr] 42 | |                 .ok()
[INFO] [stderr] 43 | |                 .expect("failed to convert to number");
[INFO] [stderr]    | |______________________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ok_expect
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/main.rs:56:21
[INFO] [stderr]    |
[INFO] [stderr] 56 |                     number = number / 2;
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^ help: replace it with: `number /= 2`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: called `ok().expect()` on a Result value. You can call `expect` directly on the `Result`
[INFO] [stderr]   --> src/main.rs:65:13
[INFO] [stderr]    |
[INFO] [stderr] 65 |             io::stdout().flush().ok().expect("didn't flush stdout");
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ok_expect
[INFO] [stderr] 
[INFO] [stderr] warning: called `ok().expect()` on a Result value. You can call `expect` directly on the `Result`
[INFO] [stderr]   --> src/main.rs:69:13
[INFO] [stderr]    |
[INFO] [stderr] 69 | /             io::stdin()
[INFO] [stderr] 70 | |                 .read_line(&mut number)
[INFO] [stderr] 71 | |                 .ok()
[INFO] [stderr] 72 | |                 .expect("failed to read line");
[INFO] [stderr]    | |______________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ok_expect
[INFO] [stderr] 
[INFO] [stderr] warning: called `ok().expect()` on a Result value. You can call `expect` directly on the `Result`
[INFO] [stderr]   --> src/main.rs:74:35
[INFO] [stderr]    |
[INFO] [stderr] 74 |               let mut number: u64 = number.trim()
[INFO] [stderr]    |  ___________________________________^
[INFO] [stderr] 75 | |                 .parse()
[INFO] [stderr] 76 | |                 .ok()
[INFO] [stderr] 77 | |                 .expect("failed to convert to number");
[INFO] [stderr]    | |______________________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ok_expect
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/main.rs:94:21
[INFO] [stderr]    |
[INFO] [stderr] 94 |                     number = number / 2;
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^ help: replace it with: `number /= 2`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `"docker" "inspect" "36f76ec4a0c1ae42f12a2f92143458aadc584b70e40323625f1a349db7e08015"`
[INFO] running `"docker" "rm" "-f" "36f76ec4a0c1ae42f12a2f92143458aadc584b70e40323625f1a349db7e08015"`
[INFO] [stdout] 36f76ec4a0c1ae42f12a2f92143458aadc584b70e40323625f1a349db7e08015