[INFO] crate discrete 0.2.0 is already in cache
[INFO] extracting crate discrete 0.2.0 into work/ex/clippy-test-run/sources/stable/reg/discrete/0.2.0
[INFO] extracting crate discrete 0.2.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/discrete/0.2.0
[INFO] validating manifest of discrete-0.2.0 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 discrete-0.2.0 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 discrete-0.2.0
[INFO] finished frobbing discrete-0.2.0
[INFO] frobbed toml for discrete-0.2.0 written to work/ex/clippy-test-run/sources/stable/reg/discrete/0.2.0/Cargo.toml
[INFO] started frobbing discrete-0.2.0
[INFO] finished frobbing discrete-0.2.0
[INFO] frobbed toml for discrete-0.2.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/discrete/0.2.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 discrete-0.2.0 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-2/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/reg/discrete/0.2.0:/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] de2cf1d3b3e16de86032dd7fbb0a493751134c0d5812a76358f25027fc3bde96
[INFO] running `"docker" "start" "-a" "de2cf1d3b3e16de86032dd7fbb0a493751134c0d5812a76358f25027fc3bde96"`
[INFO] [stderr]     Checking discrete v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: Consider removing unnecessary double parentheses
[INFO] [stderr]    --> src/context.rs:383:25
[INFO] [stderr]     |
[INFO] [stderr] 383 |         assert_eq!(pos, ((vec![(0, 2), (0, 2)], 1, (1, 2))));
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::double_parens)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#double_parens
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `dim`.
[INFO] [stderr]   --> src/dimension_n.rs:21:18
[INFO] [stderr]    |
[INFO] [stderr] 21 |         for i in 0..dim.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] 21 |         for <item> in &dim {
[INFO] [stderr]    |             ^^^^^^    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `dim`.
[INFO] [stderr]   --> src/dimension_n.rs:36:18
[INFO] [stderr]    |
[INFO] [stderr] 36 |         for i in 0..dim.len() {
[INFO] [stderr]    |                  ^^^^^^^^^^^^
[INFO] [stderr]    |
[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] 36 |         for <item> in &dim {
[INFO] [stderr]    |             ^^^^^^    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `dim`.
[INFO] [stderr]   --> src/dimension_n.rs:57:18
[INFO] [stderr]    |
[INFO] [stderr] 57 |         for i in 0..dim.len() {
[INFO] [stderr]    |                  ^^^^^^^^^^^^
[INFO] [stderr]    |
[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] 57 |         for <item> in &dim {
[INFO] [stderr]    |             ^^^^^^    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get_mut().unwrap()` on a slice. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/dimension_n.rs:104:14
[INFO] [stderr]     |
[INFO] [stderr] 104 |             *pos.get_mut(i).unwrap() = p_i;
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `pos[i]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: this looks like you are swapping `pos.1` and `pos.0` manually
[INFO] [stderr]   --> src/neq_pair.rs:90:13
[INFO] [stderr]    |
[INFO] [stderr] 90 | /             let tmp = pos.1;
[INFO] [stderr] 91 | |             pos.1 = pos.0;
[INFO] [stderr] 92 | |             pos.0 = tmp;
[INFO] [stderr]    | |_______________________^ help: try: `std::mem::swap(&mut pos.1, &mut pos.0)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::manual_swap)] on by default
[INFO] [stderr]    = note: or maybe you should use `std::mem::replace`?
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_swap
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]   --> src/permutation.rs:25:18
[INFO] [stderr]    |
[INFO] [stderr] 25 |         for x in 1..dim + 1 {
[INFO] [stderr]    |                  ^^^^^^^^^^ help: use: `1..=dim`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]   --> src/permutation.rs:39:18
[INFO] [stderr]    |
[INFO] [stderr] 39 |         for x in 1..of.count(dim) + 1 {
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^ help: use: `1..=of.count(dim)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/permutation.rs:104:23
[INFO] [stderr]     |
[INFO] [stderr] 104 |         for (j, x) in (1..dim + 1).enumerate() {
[INFO] [stderr]     |                       ^^^^^^^^^^^^ help: use: `(1..=dim)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/permutation.rs:131:23
[INFO] [stderr]     |
[INFO] [stderr] 131 |         for (j, x) in (1..of_count + 1).enumerate() {
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^ help: use: `(1..=of_count)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `j` is used to index `v`
[INFO] [stderr]   --> src/context.rs:41:18
[INFO] [stderr]    |
[INFO] [stderr] 41 |         for j in 0..v.len() {
[INFO] [stderr]    |                  ^^^^^^^^^^
[INFO] [stderr]    |
[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] 41 |         for (j, <item>) in v.iter().enumerate() {
[INFO] [stderr]    |             ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `j` is used to index `v`
[INFO] [stderr]   --> src/context.rs:61:18
[INFO] [stderr]    |
[INFO] [stderr] 61 |         for j in 0..v.len() {
[INFO] [stderr]    |                  ^^^^^^^^^^
[INFO] [stderr]    |
[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] 61 |         for (j, <item>) in v.iter().enumerate() {
[INFO] [stderr]    |             ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `dim`.
[INFO] [stderr]    --> src/context.rs:126:18
[INFO] [stderr]     |
[INFO] [stderr] 126 |         for i in 0..dim.len() {
[INFO] [stderr]     |                  ^^^^^^^^^^^^
[INFO] [stderr]     |
[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] 126 |         for <item> in &dim {
[INFO] [stderr]     |             ^^^^^^    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `j` is used to index `dim`
[INFO] [stderr]    --> src/context.rs:145:18
[INFO] [stderr]     |
[INFO] [stderr] 145 |         for j in 0..dim.len() {
[INFO] [stderr]     |                  ^^^^^^^^^^^^
[INFO] [stderr]     |
[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] 145 |         for (j, <item>) in dim.iter().enumerate() {
[INFO] [stderr]     |             ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `j` is used to index `v`
[INFO] [stderr]    --> src/context.rs:180:26
[INFO] [stderr]     |
[INFO] [stderr] 180 |                 for j in 0..v.len() {
[INFO] [stderr]     |                          ^^^^^^^^^^
[INFO] [stderr]     |
[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] 180 |                 for (j, <item>) in v.iter().enumerate() {
[INFO] [stderr]     |                     ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `j` is used to index `dim`
[INFO] [stderr]    --> src/context.rs:196:18
[INFO] [stderr]     |
[INFO] [stderr] 196 |         for j in 0..dim.len() {
[INFO] [stderr]     |                  ^^^^^^^^^^^^
[INFO] [stderr]     |
[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] 196 |         for (j, <item>) in dim.iter().enumerate() {
[INFO] [stderr]     |             ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `j` is used to index `dim`
[INFO] [stderr]    --> src/context.rs:230:18
[INFO] [stderr]     |
[INFO] [stderr] 230 |         for j in 0..dim.len() {
[INFO] [stderr]     |                  ^^^^^^^^^^^^
[INFO] [stderr]     |
[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] 230 |         for (j, <item>) in dim.iter().enumerate() {
[INFO] [stderr]     |             ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `j` is used to index `v`
[INFO] [stderr]    --> src/context.rs:279:26
[INFO] [stderr]     |
[INFO] [stderr] 279 |                 for j in 0..v.len() {
[INFO] [stderr]     |                          ^^^^^^^^^^
[INFO] [stderr]     |
[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] 279 |                 for (j, <item>) in v.iter().enumerate() {
[INFO] [stderr]     |                     ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `j` is used to index `dim`
[INFO] [stderr]    --> src/context.rs:300:18
[INFO] [stderr]     |
[INFO] [stderr] 300 |         for j in 0..dim.len() {
[INFO] [stderr]     |                  ^^^^^^^^^^^^
[INFO] [stderr]     |
[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] 300 |         for (j, <item>) in dim.iter().enumerate() {
[INFO] [stderr]     |             ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `dim`.
[INFO] [stderr]   --> src/directed_context.rs:67:18
[INFO] [stderr]    |
[INFO] [stderr] 67 |         for i in 0..dim.len() {
[INFO] [stderr]    |                  ^^^^^^^^^^^^
[INFO] [stderr]    |
[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] 67 |         for <item> in &dim {
[INFO] [stderr]    |             ^^^^^^    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this looks like you are swapping `pos.0[pos.1]` and `pos.2` manually
[INFO] [stderr]    --> src/directed_context.rs:128:13
[INFO] [stderr]     |
[INFO] [stderr] 128 | /             let tmp = pos.0[pos.1];
[INFO] [stderr] 129 | |             pos.0[pos.1] = pos.2;
[INFO] [stderr] 130 | |             pos.2 = tmp;
[INFO] [stderr]     | |_______________________^ help: try: `std::mem::swap(&mut pos.0[pos.1], &mut pos.2)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: or maybe you should use `std::mem::replace`?
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_swap
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> examples/necklace.rs:64:37
[INFO] [stderr]    |
[INFO] [stderr] 64 |         if count < 500 || counter % 100000 == 0 {
[INFO] [stderr]    |                                     ^^^^^^ help: consider: `100_000`
[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: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> examples/necklace.rs:49:9
[INFO] [stderr]    |
[INFO] [stderr] 49 |     let ref dim = vec![base; n];
[INFO] [stderr]    |     ----^^^^^^^----------------- help: try: `let dim = &$ crate :: vec :: from_elem ( $ elem , $ n );`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::toplevel_ref_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> examples/pair_of_pairs.rs:56:9
[INFO] [stderr]    |
[INFO] [stderr] 56 |     let ref n = 150;
[INFO] [stderr]    |     ----^^^^^------- help: try: `let n = &150;`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::toplevel_ref_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> examples/test.rs:52:9
[INFO] [stderr]    |
[INFO] [stderr] 52 |     let ref dim = vec![vec![2, 2], vec![2, 2]];
[INFO] [stderr]    |     ----^^^^^^^-------------------------------- help: try: `let dim = &< [ _ ] > :: into_vec ( box [ $ ( $ x ) , * ] );`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::toplevel_ref_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is used to index `object`
[INFO] [stderr]   --> examples/directed_context.rs:65:18
[INFO] [stderr]    |
[INFO] [stderr] 65 |         for i in 0..3 {
[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] 65 |         for (i, <item>) in object.iter().enumerate() {
[INFO] [stderr]    |             ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> examples/pair_of_powersets.rs:57:9
[INFO] [stderr]    |
[INFO] [stderr] 57 |     let ref n = 10;
[INFO] [stderr]    |     ----^^^^^------ help: try: `let n = &10;`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::toplevel_ref_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stderr]   --> examples/world_agent.rs:84:14
[INFO] [stderr]    |
[INFO] [stderr] 84 | fn desc(pos: &(Select<(Vec<usize>, usize, usize), Vec<usize>>, Vec<usize>)) {
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::type_complexity)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]    --> src/power_set.rs:136:13
[INFO] [stderr]     |
[INFO] [stderr] 136 |         let ref dim = 6;
[INFO] [stderr]     |         ----^^^^^^^----- help: try: `let dim = &6;`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::toplevel_ref_arg)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]    --> src/power_set.rs:150:13
[INFO] [stderr]     |
[INFO] [stderr] 150 |         let ref dim = 4;
[INFO] [stderr]     |         ----^^^^^^^----- help: try: `let dim = &4;`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `dim`.
[INFO] [stderr]   --> src/dimension_n.rs:21:18
[INFO] [stderr]    |
[INFO] [stderr] 21 |         for i in 0..dim.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] 21 |         for <item> in &dim {
[INFO] [stderr]    |             ^^^^^^    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `dim`.
[INFO] [stderr]   --> src/dimension_n.rs:36:18
[INFO] [stderr]    |
[INFO] [stderr] 36 |         for i in 0..dim.len() {
[INFO] [stderr]    |                  ^^^^^^^^^^^^
[INFO] [stderr]    |
[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] 36 |         for <item> in &dim {
[INFO] [stderr]    |             ^^^^^^    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `dim`.
[INFO] [stderr]   --> src/dimension_n.rs:57:18
[INFO] [stderr]    |
[INFO] [stderr] 57 |         for i in 0..dim.len() {
[INFO] [stderr]    |                  ^^^^^^^^^^^^
[INFO] [stderr]    |
[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] 57 |         for <item> in &dim {
[INFO] [stderr]    |             ^^^^^^    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get_mut().unwrap()` on a slice. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/dimension_n.rs:104:14
[INFO] [stderr]     |
[INFO] [stderr] 104 |             *pos.get_mut(i).unwrap() = p_i;
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `pos[i]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]    --> src/dimension_n.rs:147:13
[INFO] [stderr]     |
[INFO] [stderr] 147 |         let ref dim = vec![3, 3];
[INFO] [stderr]     |         ----^^^^^^^-------------- help: try: `let dim = &< [ _ ] > :: into_vec ( box [ $ ( $ x ) , * ] );`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]    --> src/dimension_n.rs:160:13
[INFO] [stderr]     |
[INFO] [stderr] 160 |         let ref dim = vec![3, 4];
[INFO] [stderr]     |         ----^^^^^^^-------------- help: try: `let dim = &< [ _ ] > :: into_vec ( box [ $ ( $ x ) , * ] );`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]    --> src/pair.rs:114:13
[INFO] [stderr]     |
[INFO] [stderr] 114 |         let ref dim = 4;
[INFO] [stderr]     |         ----^^^^^^^----- help: try: `let dim = &4;`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]    --> src/pair.rs:128:13
[INFO] [stderr]     |
[INFO] [stderr] 128 |         let ref dim = vec![2, 2];
[INFO] [stderr]     |         ----^^^^^^^-------------- help: try: `let dim = &< [ _ ] > :: into_vec ( box [ $ ( $ x ) , * ] );`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]    --> src/eq_pair.rs:120:13
[INFO] [stderr]     |
[INFO] [stderr] 120 |         let ref n = 4;
[INFO] [stderr]     |         ----^^^^^----- help: try: `let n = &4;`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: this looks like you are swapping `pos.1` and `pos.0` manually
[INFO] [stderr]   --> src/neq_pair.rs:90:13
[INFO] [stderr]    |
[INFO] [stderr] 90 | /             let tmp = pos.1;
[INFO] [stderr] 91 | |             pos.1 = pos.0;
[INFO] [stderr] 92 | |             pos.0 = tmp;
[INFO] [stderr]    | |_______________________^ help: try: `std::mem::swap(&mut pos.1, &mut pos.0)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::manual_swap)] on by default
[INFO] [stderr]    = note: or maybe you should use `std::mem::replace`?
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_swap
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]    --> src/neq_pair.rs:133:13
[INFO] [stderr]     |
[INFO] [stderr] 133 |         let ref dim = 4;
[INFO] [stderr]     |         ----^^^^^^^----- help: try: `let dim = &4;`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]    --> src/neq_pair.rs:152:13
[INFO] [stderr]     |
[INFO] [stderr] 152 |         let ref dim = vec![2, 2];
[INFO] [stderr]     |         ----^^^^^^^-------------- help: try: `let dim = &< [ _ ] > :: into_vec ( box [ $ ( $ x ) , * ] );`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]   --> src/permutation.rs:25:18
[INFO] [stderr]    |
[INFO] [stderr] 25 |         for x in 1..dim + 1 {
[INFO] [stderr]    |                  ^^^^^^^^^^ help: use: `1..=dim`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]   --> src/permutation.rs:39:18
[INFO] [stderr]    |
[INFO] [stderr] 39 |         for x in 1..of.count(dim) + 1 {
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^ help: use: `1..=of.count(dim)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/permutation.rs:104:23
[INFO] [stderr]     |
[INFO] [stderr] 104 |         for (j, x) in (1..dim + 1).enumerate() {
[INFO] [stderr]     |                       ^^^^^^^^^^^^ help: use: `(1..=dim)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/permutation.rs:131:23
[INFO] [stderr]     |
[INFO] [stderr] 131 |         for (j, x) in (1..of_count + 1).enumerate() {
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^ help: use: `(1..=of_count)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]    --> src/permutation.rs:168:13
[INFO] [stderr]     |
[INFO] [stderr] 168 |         let ref dim = 4;
[INFO] [stderr]     |         ----^^^^^^^----- help: try: `let dim = &4;`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]    --> src/permutation.rs:180:13
[INFO] [stderr]     |
[INFO] [stderr] 180 |         let ref dim = 3;
[INFO] [stderr]     |         ----^^^^^^^----- help: try: `let dim = &3;`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `j` is used to index `v`
[INFO] [stderr]   --> src/context.rs:41:18
[INFO] [stderr]    |
[INFO] [stderr] 41 |         for j in 0..v.len() {
[INFO] [stderr]    |                  ^^^^^^^^^^
[INFO] [stderr]    |
[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] 41 |         for (j, <item>) in v.iter().enumerate() {
[INFO] [stderr]    |             ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `j` is used to index `v`
[INFO] [stderr]   --> src/context.rs:61:18
[INFO] [stderr]    |
[INFO] [stderr] 61 |         for j in 0..v.len() {
[INFO] [stderr]    |                  ^^^^^^^^^^
[INFO] [stderr]    |
[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] 61 |         for (j, <item>) in v.iter().enumerate() {
[INFO] [stderr]    |             ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `dim`.
[INFO] [stderr]    --> src/context.rs:126:18
[INFO] [stderr]     |
[INFO] [stderr] 126 |         for i in 0..dim.len() {
[INFO] [stderr]     |                  ^^^^^^^^^^^^
[INFO] [stderr]     |
[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] 126 |         for <item> in &dim {
[INFO] [stderr]     |             ^^^^^^    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `j` is used to index `dim`
[INFO] [stderr]    --> src/context.rs:145:18
[INFO] [stderr]     |
[INFO] [stderr] 145 |         for j in 0..dim.len() {
[INFO] [stderr]     |                  ^^^^^^^^^^^^
[INFO] [stderr]     |
[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] 145 |         for (j, <item>) in dim.iter().enumerate() {
[INFO] [stderr]     |             ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `j` is used to index `v`
[INFO] [stderr]    --> src/context.rs:180:26
[INFO] [stderr]     |
[INFO] [stderr] 180 |                 for j in 0..v.len() {
[INFO] [stderr]     |                          ^^^^^^^^^^
[INFO] [stderr]     |
[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] 180 |                 for (j, <item>) in v.iter().enumerate() {
[INFO] [stderr]     |                     ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `j` is used to index `dim`
[INFO] [stderr]    --> src/context.rs:196:18
[INFO] [stderr]     |
[INFO] [stderr] 196 |         for j in 0..dim.len() {
[INFO] [stderr]     |                  ^^^^^^^^^^^^
[INFO] [stderr]     |
[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] 196 |         for (j, <item>) in dim.iter().enumerate() {
[INFO] [stderr]     |             ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `j` is used to index `dim`
[INFO] [stderr]    --> src/context.rs:230:18
[INFO] [stderr]     |
[INFO] [stderr] 230 |         for j in 0..dim.len() {
[INFO] [stderr]     |                  ^^^^^^^^^^^^
[INFO] [stderr]     |
[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] 230 |         for (j, <item>) in dim.iter().enumerate() {
[INFO] [stderr]     |             ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `j` is used to index `v`
[INFO] [stderr]    --> src/context.rs:279:26
[INFO] [stderr]     |
[INFO] [stderr] 279 |                 for j in 0..v.len() {
[INFO] [stderr]     |                          ^^^^^^^^^^
[INFO] [stderr]     |
[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] 279 |                 for (j, <item>) in v.iter().enumerate() {
[INFO] [stderr]     |                     ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `j` is used to index `dim`
[INFO] [stderr]    --> src/context.rs:300:18
[INFO] [stderr]     |
[INFO] [stderr] 300 |         for j in 0..dim.len() {
[INFO] [stderr]     |                  ^^^^^^^^^^^^
[INFO] [stderr]     |
[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] 300 |         for (j, <item>) in dim.iter().enumerate() {
[INFO] [stderr]     |             ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]    --> src/context.rs:341:13
[INFO] [stderr]     |
[INFO] [stderr] 341 |         let ref dim = vec![2, 2, 2];
[INFO] [stderr]     |         ----^^^^^^^----------------- help: try: `let dim = &< [ _ ] > :: into_vec ( box [ $ ( $ x ) , * ] );`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]    --> src/context.rs:355:13
[INFO] [stderr]     |
[INFO] [stderr] 355 |         let ref dim = vec![3];
[INFO] [stderr]     |         ----^^^^^^^----------- help: try: `let dim = &< [ _ ] > :: into_vec ( box [ $ ( $ x ) , * ] );`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]    --> src/context.rs:360:13
[INFO] [stderr]     |
[INFO] [stderr] 360 |         let ref dim = vec![3, 3];
[INFO] [stderr]     |         ----^^^^^^^-------------- help: try: `let dim = &< [ _ ] > :: into_vec ( box [ $ ( $ x ) , * ] );`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `dim`.
[INFO] [stderr]   --> src/directed_context.rs:67:18
[INFO] [stderr]    |
[INFO] [stderr] 67 |         for i in 0..dim.len() {
[INFO] [stderr]    |                  ^^^^^^^^^^^^
[INFO] [stderr]    |
[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] 67 |         for <item> in &dim {
[INFO] [stderr]    |             ^^^^^^    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this looks like you are swapping `pos.0[pos.1]` and `pos.2` manually
[INFO] [stderr]    --> src/directed_context.rs:128:13
[INFO] [stderr]     |
[INFO] [stderr] 128 | /             let tmp = pos.0[pos.1];
[INFO] [stderr] 129 | |             pos.0[pos.1] = pos.2;
[INFO] [stderr] 130 | |             pos.2 = tmp;
[INFO] [stderr]     | |_______________________^ help: try: `std::mem::swap(&mut pos.0[pos.1], &mut pos.2)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: or maybe you should use `std::mem::replace`?
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_swap
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]    --> src/directed_context.rs:175:13
[INFO] [stderr]     |
[INFO] [stderr] 175 |         let ref dim = vec![2, 2, 2];
[INFO] [stderr]     |         ----^^^^^^^----------------- help: try: `let dim = &< [ _ ] > :: into_vec ( box [ $ ( $ x ) , * ] );`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.19s
[INFO] running `"docker" "inspect" "de2cf1d3b3e16de86032dd7fbb0a493751134c0d5812a76358f25027fc3bde96"`
[INFO] running `"docker" "rm" "-f" "de2cf1d3b3e16de86032dd7fbb0a493751134c0d5812a76358f25027fc3bde96"`
[INFO] [stdout] de2cf1d3b3e16de86032dd7fbb0a493751134c0d5812a76358f25027fc3bde96