[INFO] updating cached repository Lenkhar/encrypted_chat
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Lenkhar/encrypted_chat
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Lenkhar/encrypted_chat" "work/ex/clippy-test-run/sources/stable/gh/Lenkhar/encrypted_chat"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/Lenkhar/encrypted_chat'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Lenkhar/encrypted_chat" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Lenkhar/encrypted_chat"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Lenkhar/encrypted_chat'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] aebf00cabbd594832fc608ab3d9882caa17ebd6b
[INFO] sha for GitHub repo Lenkhar/encrypted_chat: aebf00cabbd594832fc608ab3d9882caa17ebd6b
[INFO] validating manifest of Lenkhar/encrypted_chat 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 Lenkhar/encrypted_chat 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 Lenkhar/encrypted_chat
[INFO] finished frobbing Lenkhar/encrypted_chat
[INFO] frobbed toml for Lenkhar/encrypted_chat written to work/ex/clippy-test-run/sources/stable/gh/Lenkhar/encrypted_chat/Cargo.toml
[INFO] started frobbing Lenkhar/encrypted_chat
[INFO] finished frobbing Lenkhar/encrypted_chat
[INFO] frobbed toml for Lenkhar/encrypted_chat written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Lenkhar/encrypted_chat/Cargo.toml
[INFO] crate Lenkhar/encrypted_chat 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 Lenkhar/encrypted_chat 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-4/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/Lenkhar/encrypted_chat:/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] 45f7a5bbfa040886ba60ccc2f20165da10ae9629cc5164584649548c3f5792fb
[INFO] running `"docker" "start" "-a" "45f7a5bbfa040886ba60ccc2f20165da10ae9629cc5164584649548c3f5792fb"`
[INFO] [stderr]     Checking num-complex v0.1.39
[INFO] [stderr]     Checking num-bigint v0.1.40
[INFO] [stderr]     Checking num-rational v0.1.39
[INFO] [stderr]     Checking num v0.1.40
[INFO] [stderr]     Checking encrypted_chat v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]   --> src/small_primes.rs:16:13
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let mut x = power_modulo(a, d, n);
[INFO] [stderr]    |             ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::many_single_char_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: 6th binding whose name is just one char
[INFO] [stderr]   --> src/small_primes.rs:17:13
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let mut y: u64 = 0;
[INFO] [stderr]    |             ^
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]   --> src/small_primes.rs:16:13
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let mut x = power_modulo(a, d, n);
[INFO] [stderr]    |             ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::many_single_char_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: 6th binding whose name is just one char
[INFO] [stderr]   --> src/small_primes.rs:17:13
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let mut y: u64 = 0;
[INFO] [stderr]    |             ^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]   --> src/big_op.rs:29:13
[INFO] [stderr]    |
[INFO] [stderr] 29 |     let mut v: T = zero();
[INFO] [stderr]    |             ^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: 6th binding whose name is just one char
[INFO] [stderr]   --> src/big_op.rs:36:13
[INFO] [stderr]    |
[INFO] [stderr] 36 |         let q = &r / &rr;
[INFO] [stderr]    |             ^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]   --> src/rsa.rs:49:13
[INFO] [stderr]    |
[INFO] [stderr] 49 |     let (_, d, _) = big_op::euclide(s_e, s_phi.clone());
[INFO] [stderr]    |             ^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]   --> src/big_op.rs:29:13
[INFO] [stderr]    |
[INFO] [stderr] 29 |     let mut v: T = zero();
[INFO] [stderr]    |             ^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: 6th binding whose name is just one char
[INFO] [stderr]   --> src/big_op.rs:36:13
[INFO] [stderr]    |
[INFO] [stderr] 36 |         let q = &r / &rr;
[INFO] [stderr]    |             ^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]   --> src/rsa.rs:49:13
[INFO] [stderr]    |
[INFO] [stderr] 49 |     let (_, d, _) = big_op::euclide(s_e, s_phi.clone());
[INFO] [stderr]    |             ^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/small_primes.rs:56:26
[INFO] [stderr]    |
[INFO] [stderr] 56 |         witness(n, s, d, 1662803)
[INFO] [stderr]    |                          ^^^^^^^ help: consider: `1_662_803`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/big_primes.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 |     return true;
[INFO] [stderr]    |     ^^^^^^^^^^^^ help: remove `return` as shown: `true`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/big_primes.rs:98:5
[INFO] [stderr]    |
[INFO] [stderr] 98 |     return true;
[INFO] [stderr]    |     ^^^^^^^^^^^^ help: remove `return` as shown: `true`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/big_primes.rs:117:5
[INFO] [stderr]     |
[INFO] [stderr] 117 |     return candidate;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `candidate`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/big_op.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     return (r, u, v);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(r, u, v)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/small_primes.rs:56:26
[INFO] [stderr]    |
[INFO] [stderr] 56 |         witness(n, s, d, 1662803)
[INFO] [stderr]    |                          ^^^^^^^ help: consider: `1_662_803`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/big_primes.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 |     return true;
[INFO] [stderr]    |     ^^^^^^^^^^^^ help: remove `return` as shown: `true`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/big_primes.rs:98:5
[INFO] [stderr]    |
[INFO] [stderr] 98 |     return true;
[INFO] [stderr]    |     ^^^^^^^^^^^^ help: remove `return` as shown: `true`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/big_primes.rs:117:5
[INFO] [stderr]     |
[INFO] [stderr] 117 |     return candidate;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `candidate`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/big_op.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     return (r, u, v);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(r, u, v)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/small_primes.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |         s = s - 1;
[INFO] [stderr]    |         ^^^^^^^^^ help: replace it with: `s -= 1`
[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: the loop variable `i` is only used to index `primes`.
[INFO] [stderr]   --> src/big_primes.rs:14:18
[INFO] [stderr]    |
[INFO] [stderr] 14 |         for i in 0..primes.len() {
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]    |
[INFO] [stderr] 14 |         for <item> in &mut primes {
[INFO] [stderr]    |             ^^^^^^    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: taken reference of right operand
[INFO] [stderr]   --> src/big_primes.rs:26:12
[INFO] [stderr]    |
[INFO] [stderr] 26 |         if candidate <= &x {
[INFO] [stderr]    |            ^^^^^^^^^^^^^--
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         help: use the right value directly: `x`
[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: manual implementation of an assign operation
[INFO] [stderr]   --> src/big_primes.rs:62:9
[INFO] [stderr]    |
[INFO] [stderr] 62 |         r = r + 1;
[INFO] [stderr]    |         ^^^^^^^^^ help: replace it with: `r += 1`
[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:46:9
[INFO] [stderr]    |
[INFO] [stderr] 46 |         io::stdout().flush().ok().expect("Could not 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:58:21
[INFO] [stderr]    |
[INFO] [stderr] 58 |                     io::stdout().flush().ok().expect("Could not 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: manual implementation of an assign operation
[INFO] [stderr]   --> src/small_primes.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |         s = s - 1;
[INFO] [stderr]    |         ^^^^^^^^^ help: replace it with: `s -= 1`
[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: the loop variable `i` is only used to index `primes`.
[INFO] [stderr]   --> src/big_primes.rs:14:18
[INFO] [stderr]    |
[INFO] [stderr] 14 |         for i in 0..primes.len() {
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]    |
[INFO] [stderr] 14 |         for <item> in &mut primes {
[INFO] [stderr]    |             ^^^^^^    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: taken reference of right operand
[INFO] [stderr]   --> src/big_primes.rs:26:12
[INFO] [stderr]    |
[INFO] [stderr] 26 |         if candidate <= &x {
[INFO] [stderr]    |            ^^^^^^^^^^^^^--
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         help: use the right value directly: `x`
[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: manual implementation of an assign operation
[INFO] [stderr]   --> src/big_primes.rs:62:9
[INFO] [stderr]    |
[INFO] [stderr] 62 |         r = r + 1;
[INFO] [stderr]    |         ^^^^^^^^^ help: replace it with: `r += 1`
[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:46:9
[INFO] [stderr]    |
[INFO] [stderr] 46 |         io::stdout().flush().ok().expect("Could not 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:58:21
[INFO] [stderr]    |
[INFO] [stderr] 58 |                     io::stdout().flush().ok().expect("Could not 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]     Finished dev [unoptimized + debuginfo] target(s) in 6.10s
[INFO] running `"docker" "inspect" "45f7a5bbfa040886ba60ccc2f20165da10ae9629cc5164584649548c3f5792fb"`
[INFO] running `"docker" "rm" "-f" "45f7a5bbfa040886ba60ccc2f20165da10ae9629cc5164584649548c3f5792fb"`
[INFO] [stdout] 45f7a5bbfa040886ba60ccc2f20165da10ae9629cc5164584649548c3f5792fb