[INFO] crate double 0.2.2 is already in cache
[INFO] extracting crate double 0.2.2 into work/ex/clippy-test-run/sources/stable/reg/double/0.2.2
[INFO] extracting crate double 0.2.2 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/double/0.2.2
[INFO] validating manifest of double-0.2.2 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 double-0.2.2 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 double-0.2.2
[INFO] finished frobbing double-0.2.2
[INFO] frobbed toml for double-0.2.2 written to work/ex/clippy-test-run/sources/stable/reg/double/0.2.2/Cargo.toml
[INFO] started frobbing double-0.2.2
[INFO] finished frobbing double-0.2.2
[INFO] frobbed toml for double-0.2.2 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/double/0.2.2/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 double-0.2.2 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-2/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/double/0.2.2:/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] c1e3881189d8cd71fb658ed3108246b39547380bde363387d1cec08360922442
[INFO] running `"docker" "start" "-a" "c1e3881189d8cd71fb658ed3108246b39547380bde363387d1cec08360922442"`
[INFO] [stderr]    Compiling double v0.2.2 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/mock.rs:790:13
[INFO] [stderr]     |
[INFO] [stderr] 790 |             pattern_index_to_match_indices: pattern_index_to_match_indices,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `pattern_index_to_match_indices`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/mock.rs:813:13
[INFO] [stderr]     |
[INFO] [stderr] 813 |             pattern_index_to_match_indices: pattern_index_to_match_indices,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `pattern_index_to_match_indices`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/mock.rs:790:13
[INFO] [stderr]     |
[INFO] [stderr] 790 |             pattern_index_to_match_indices: pattern_index_to_match_indices,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `pattern_index_to_match_indices`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/mock.rs:813:13
[INFO] [stderr]     |
[INFO] [stderr] 813 |             pattern_index_to_match_indices: pattern_index_to_match_indices,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `pattern_index_to_match_indices`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/mock.rs:917:13
[INFO] [stderr]     |
[INFO] [stderr] 917 |             (0..self.num_expectations));
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: Consider removing unnecessary double parentheses
[INFO] [stderr]    --> src/mock.rs:917:13
[INFO] [stderr]     |
[INFO] [stderr] 917 |             (0..self.num_expectations));
[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: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/mock.rs:917:13
[INFO] [stderr]     |
[INFO] [stderr] 917 |             (0..self.num_expectations));
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: Consider removing unnecessary double parentheses
[INFO] [stderr]    --> src/mock.rs:917:13
[INFO] [stderr]     |
[INFO] [stderr] 917 |             (0..self.num_expectations));
[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: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stderr]   --> /opt/crater/target/debug/build/double-99740cb264a5adcc/out/matcher_generated.rs:75:19
[INFO] [stderr]    |
[INFO] [stderr] 75 |       arg_matchers: (
[INFO] [stderr]    |  ___________________^
[INFO] [stderr] 76 | |         &Fn(&A) -> bool,
[INFO] [stderr] 77 | |         &Fn(&B) -> bool,
[INFO] [stderr] 78 | |         &Fn(&C) -> bool
[INFO] [stderr] 79 | |     )) -> bool {
[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: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stderr]   --> /opt/crater/target/debug/build/double-99740cb264a5adcc/out/matcher_generated.rs:94:19
[INFO] [stderr]    |
[INFO] [stderr] 94 |       arg_matchers: (
[INFO] [stderr]    |  ___________________^
[INFO] [stderr] 95 | |         &Fn(&A) -> bool,
[INFO] [stderr] 96 | |         &Fn(&B) -> bool,
[INFO] [stderr] 97 | |         &Fn(&C) -> bool,
[INFO] [stderr] 98 | |         &Fn(&D) -> bool
[INFO] [stderr] 99 | |     )) -> bool {
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stderr]    --> /opt/crater/target/debug/build/double-99740cb264a5adcc/out/matcher_generated.rs:116:19
[INFO] [stderr]     |
[INFO] [stderr] 116 |       arg_matchers: (
[INFO] [stderr]     |  ___________________^
[INFO] [stderr] 117 | |         &Fn(&A) -> bool,
[INFO] [stderr] 118 | |         &Fn(&B) -> bool,
[INFO] [stderr] 119 | |         &Fn(&C) -> bool,
[INFO] [stderr] 120 | |         &Fn(&D) -> bool,
[INFO] [stderr] 121 | |         &Fn(&E) -> bool
[INFO] [stderr] 122 | |     )) -> bool {
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stderr]    --> /opt/crater/target/debug/build/double-99740cb264a5adcc/out/matcher_generated.rs:141:19
[INFO] [stderr]     |
[INFO] [stderr] 141 |       arg_matchers: (
[INFO] [stderr]     |  ___________________^
[INFO] [stderr] 142 | |         &Fn(&A) -> bool,
[INFO] [stderr] 143 | |         &Fn(&B) -> bool,
[INFO] [stderr] 144 | |         &Fn(&C) -> bool,
[INFO] [stderr] ...   |
[INFO] [stderr] 147 | |         &Fn(&F) -> bool
[INFO] [stderr] 148 | |     )) -> bool {
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stderr]    --> /opt/crater/target/debug/build/double-99740cb264a5adcc/out/matcher_generated.rs:169:19
[INFO] [stderr]     |
[INFO] [stderr] 169 |       arg_matchers: (
[INFO] [stderr]     |  ___________________^
[INFO] [stderr] 170 | |         &Fn(&A) -> bool,
[INFO] [stderr] 171 | |         &Fn(&B) -> bool,
[INFO] [stderr] 172 | |         &Fn(&C) -> bool,
[INFO] [stderr] ...   |
[INFO] [stderr] 176 | |         &Fn(&G) -> bool
[INFO] [stderr] 177 | |     )) -> bool {
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stderr]    --> /opt/crater/target/debug/build/double-99740cb264a5adcc/out/matcher_generated.rs:200:19
[INFO] [stderr]     |
[INFO] [stderr] 200 |       arg_matchers: (
[INFO] [stderr]     |  ___________________^
[INFO] [stderr] 201 | |         &Fn(&A) -> bool,
[INFO] [stderr] 202 | |         &Fn(&B) -> bool,
[INFO] [stderr] 203 | |         &Fn(&C) -> bool,
[INFO] [stderr] ...   |
[INFO] [stderr] 208 | |         &Fn(&H) -> bool
[INFO] [stderr] 209 | |     )) -> bool {
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stderr]    --> /opt/crater/target/debug/build/double-99740cb264a5adcc/out/matcher_generated.rs:234:19
[INFO] [stderr]     |
[INFO] [stderr] 234 |       arg_matchers: (
[INFO] [stderr]     |  ___________________^
[INFO] [stderr] 235 | |         &Fn(&A) -> bool,
[INFO] [stderr] 236 | |         &Fn(&B) -> bool,
[INFO] [stderr] 237 | |         &Fn(&C) -> bool,
[INFO] [stderr] ...   |
[INFO] [stderr] 243 | |         &Fn(&I) -> bool
[INFO] [stderr] 244 | |     )) -> bool {
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stderr]    --> /opt/crater/target/debug/build/double-99740cb264a5adcc/out/matcher_generated.rs:271:19
[INFO] [stderr]     |
[INFO] [stderr] 271 |       arg_matchers: (
[INFO] [stderr]     |  ___________________^
[INFO] [stderr] 272 | |         &Fn(&A) -> bool,
[INFO] [stderr] 273 | |         &Fn(&B) -> bool,
[INFO] [stderr] 274 | |         &Fn(&C) -> bool,
[INFO] [stderr] ...   |
[INFO] [stderr] 281 | |         &Fn(&J) -> bool
[INFO] [stderr] 282 | |     )) -> bool {
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stderr]    --> /opt/crater/target/debug/build/double-99740cb264a5adcc/out/matcher_generated.rs:311:19
[INFO] [stderr]     |
[INFO] [stderr] 311 |       arg_matchers: (
[INFO] [stderr]     |  ___________________^
[INFO] [stderr] 312 | |         &Fn(&A) -> bool,
[INFO] [stderr] 313 | |         &Fn(&B) -> bool,
[INFO] [stderr] 314 | |         &Fn(&C) -> bool,
[INFO] [stderr] ...   |
[INFO] [stderr] 322 | |         &Fn(&K) -> bool
[INFO] [stderr] 323 | |     )) -> bool {
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/matcher.rs:94:20
[INFO] [stderr]    |
[INFO] [stderr] 94 | pub fn f32_eq(arg: &f32, target_val: f32) -> bool {
[INFO] [stderr]    |                    ^^^^ help: consider passing by value instead: `f32`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/matcher.rs:104:20
[INFO] [stderr]     |
[INFO] [stderr] 104 | pub fn f64_eq(arg: &f64, target_val: f64) -> bool {
[INFO] [stderr]     |                    ^^^^ help: consider passing by value instead: `f64`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/matcher.rs:117:34
[INFO] [stderr]     |
[INFO] [stderr] 117 | pub fn nan_sensitive_f32_eq(arg: &f32, target_val: f32) -> bool {
[INFO] [stderr]     |                                  ^^^^ help: consider passing by value instead: `f32`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/matcher.rs:130:34
[INFO] [stderr]     |
[INFO] [stderr] 130 | pub fn nan_sensitive_f64_eq(arg: &f64, target_val: f64) -> bool {
[INFO] [stderr]     |                                  ^^^^ help: consider passing by value instead: `f64`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stderr]   --> src/mock.rs:34:10
[INFO] [stderr]    |
[INFO] [stderr] 34 |     fns: Ref<HashMap<C, fn(C) -> R>>,
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stderr]   --> src/mock.rs:35:15
[INFO] [stderr]    |
[INFO] [stderr] 35 |     closures: Ref<HashMap<C, Box<Fn(C) -> R>>>,
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[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/mock.rs:122:17
[INFO] [stderr]     |
[INFO] [stderr] 122 |             let ref mut sequence = *self.return_value_sequence.borrow_mut();
[INFO] [stderr]     |             ----^^^^^^^^^^^^^^^^-------------------------------------------- help: try: `let sequence = &mut (*self.return_value_sequence.borrow_mut());`
[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: use of `or_insert` followed by a function call
[INFO] [stderr]    --> src/mock.rs:781:26
[INFO] [stderr]     |
[INFO] [stderr] 781 |                         .or_insert(vec!())
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(|| vec!())`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `or_insert` followed by a function call
[INFO] [stderr]    --> src/mock.rs:804:26
[INFO] [stderr]     |
[INFO] [stderr] 804 |                         .or_insert(vec!())
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(|| vec!())`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]    --> src/mock.rs:919:13
[INFO] [stderr]     |
[INFO] [stderr] 919 | /             self.pattern_index_to_match_indices
[INFO] [stderr] 920 | |             .keys()
[INFO] [stderr] 921 | |             .map(|k| k.clone()));
[INFO] [stderr]     | |_______________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::map_clone)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] help: Consider calling the dedicated `cloned` method
[INFO] [stderr]     |
[INFO] [stderr] 919 |             self.pattern_index_to_match_indices
[INFO] [stderr] 920 |             .keys().cloned());
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/mock.rs:921:22
[INFO] [stderr]     |
[INFO] [stderr] 921 |             .map(|k| k.clone()));
[INFO] [stderr]     |                      ^^^^^^^^^ help: try dereferencing it: `*k`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::clone_on_copy)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]    --> src/mock.rs:923:13
[INFO] [stderr]     |
[INFO] [stderr] 923 | /             expected_indices
[INFO] [stderr] 924 | |             .difference(&expected_indices_matched)
[INFO] [stderr] 925 | |             .map(|i| i.clone()));
[INFO] [stderr]     | |_______________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] help: Consider calling the dedicated `cloned` method
[INFO] [stderr]     |
[INFO] [stderr] 923 |             expected_indices
[INFO] [stderr] 924 |             .difference(&expected_indices_matched).cloned());
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/mock.rs:925:22
[INFO] [stderr]     |
[INFO] [stderr] 925 |             .map(|i| i.clone()));
[INFO] [stderr]     |                      ^^^^^^^^^ help: try dereferencing it: `*i`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/mock.rs:932:9
[INFO] [stderr]     |
[INFO] [stderr] 932 |         unmatched_expectation_indices.len() == 0
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `unmatched_expectation_indices.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]     --> src/mock.rs:1020:39
[INFO] [stderr]      |
[INFO] [stderr] 1020 | fn generate_permutations(constraints: &Vec<Vec<usize>>) -> Vec<Vec<usize>> {
[INFO] [stderr]      |                                       ^^^^^^^^^^^^^^^^ help: change this to: `&[Vec<usize>]`
[INFO] [stderr]      |
[INFO] [stderr]      = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]     --> src/mock.rs:1035:18
[INFO] [stderr]      |
[INFO] [stderr] 1035 |     constraints: &Vec<Vec<usize>>,
[INFO] [stderr]      |                  ^^^^^^^^^^^^^^^^ help: change this to: `&[Vec<usize>]`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]     --> src/mock.rs:1040:49
[INFO] [stderr]      |
[INFO] [stderr] 1040 |             permutation_buffer[current_index] = val.clone();
[INFO] [stderr]      |                                                 ^^^^^^^^^^^ help: try dereferencing it: `*val`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stderr]   --> /opt/crater/target/debug/build/double-99740cb264a5adcc/out/matcher_generated.rs:75:19
[INFO] [stderr]    |
[INFO] [stderr] 75 |       arg_matchers: (
[INFO] [stderr]    |  ___________________^
[INFO] [stderr] 76 | |         &Fn(&A) -> bool,
[INFO] [stderr] 77 | |         &Fn(&B) -> bool,
[INFO] [stderr] 78 | |         &Fn(&C) -> bool
[INFO] [stderr] 79 | |     )) -> bool {
[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: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stderr]   --> /opt/crater/target/debug/build/double-99740cb264a5adcc/out/matcher_generated.rs:94:19
[INFO] [stderr]    |
[INFO] [stderr] 94 |       arg_matchers: (
[INFO] [stderr]    |  ___________________^
[INFO] [stderr] 95 | |         &Fn(&A) -> bool,
[INFO] [stderr] 96 | |         &Fn(&B) -> bool,
[INFO] [stderr] 97 | |         &Fn(&C) -> bool,
[INFO] [stderr] 98 | |         &Fn(&D) -> bool
[INFO] [stderr] 99 | |     )) -> bool {
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stderr]    --> /opt/crater/target/debug/build/double-99740cb264a5adcc/out/matcher_generated.rs:116:19
[INFO] [stderr]     |
[INFO] [stderr] 116 |       arg_matchers: (
[INFO] [stderr]     |  ___________________^
[INFO] [stderr] 117 | |         &Fn(&A) -> bool,
[INFO] [stderr] 118 | |         &Fn(&B) -> bool,
[INFO] [stderr] 119 | |         &Fn(&C) -> bool,
[INFO] [stderr] 120 | |         &Fn(&D) -> bool,
[INFO] [stderr] 121 | |         &Fn(&E) -> bool
[INFO] [stderr] 122 | |     )) -> bool {
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stderr]    --> /opt/crater/target/debug/build/double-99740cb264a5adcc/out/matcher_generated.rs:141:19
[INFO] [stderr]     |
[INFO] [stderr] 141 |       arg_matchers: (
[INFO] [stderr]     |  ___________________^
[INFO] [stderr] 142 | |         &Fn(&A) -> bool,
[INFO] [stderr] 143 | |         &Fn(&B) -> bool,
[INFO] [stderr] 144 | |         &Fn(&C) -> bool,
[INFO] [stderr] ...   |
[INFO] [stderr] 147 | |         &Fn(&F) -> bool
[INFO] [stderr] 148 | |     )) -> bool {
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stderr]    --> /opt/crater/target/debug/build/double-99740cb264a5adcc/out/matcher_generated.rs:169:19
[INFO] [stderr]     |
[INFO] [stderr] 169 |       arg_matchers: (
[INFO] [stderr]     |  ___________________^
[INFO] [stderr] 170 | |         &Fn(&A) -> bool,
[INFO] [stderr] 171 | |         &Fn(&B) -> bool,
[INFO] [stderr] 172 | |         &Fn(&C) -> bool,
[INFO] [stderr] ...   |
[INFO] [stderr] 176 | |         &Fn(&G) -> bool
[INFO] [stderr] 177 | |     )) -> bool {
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stderr]    --> /opt/crater/target/debug/build/double-99740cb264a5adcc/out/matcher_generated.rs:200:19
[INFO] [stderr]     |
[INFO] [stderr] 200 |       arg_matchers: (
[INFO] [stderr]     |  ___________________^
[INFO] [stderr] 201 | |         &Fn(&A) -> bool,
[INFO] [stderr] 202 | |         &Fn(&B) -> bool,
[INFO] [stderr] 203 | |         &Fn(&C) -> bool,
[INFO] [stderr] ...   |
[INFO] [stderr] 208 | |         &Fn(&H) -> bool
[INFO] [stderr] 209 | |     )) -> bool {
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stderr]    --> /opt/crater/target/debug/build/double-99740cb264a5adcc/out/matcher_generated.rs:234:19
[INFO] [stderr]     |
[INFO] [stderr] 234 |       arg_matchers: (
[INFO] [stderr]     |  ___________________^
[INFO] [stderr] 235 | |         &Fn(&A) -> bool,
[INFO] [stderr] 236 | |         &Fn(&B) -> bool,
[INFO] [stderr] 237 | |         &Fn(&C) -> bool,
[INFO] [stderr] ...   |
[INFO] [stderr] 243 | |         &Fn(&I) -> bool
[INFO] [stderr] 244 | |     )) -> bool {
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stderr]    --> /opt/crater/target/debug/build/double-99740cb264a5adcc/out/matcher_generated.rs:271:19
[INFO] [stderr]     |
[INFO] [stderr] 271 |       arg_matchers: (
[INFO] [stderr]     |  ___________________^
[INFO] [stderr] 272 | |         &Fn(&A) -> bool,
[INFO] [stderr] 273 | |         &Fn(&B) -> bool,
[INFO] [stderr] 274 | |         &Fn(&C) -> bool,
[INFO] [stderr] ...   |
[INFO] [stderr] 281 | |         &Fn(&J) -> bool
[INFO] [stderr] 282 | |     )) -> bool {
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stderr]    --> /opt/crater/target/debug/build/double-99740cb264a5adcc/out/matcher_generated.rs:311:19
[INFO] [stderr]     |
[INFO] [stderr] 311 |       arg_matchers: (
[INFO] [stderr]     |  ___________________^
[INFO] [stderr] 312 | |         &Fn(&A) -> bool,
[INFO] [stderr] 313 | |         &Fn(&B) -> bool,
[INFO] [stderr] 314 | |         &Fn(&C) -> bool,
[INFO] [stderr] ...   |
[INFO] [stderr] 322 | |         &Fn(&K) -> bool
[INFO] [stderr] 323 | |     )) -> bool {
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/matcher.rs:94:20
[INFO] [stderr]    |
[INFO] [stderr] 94 | pub fn f32_eq(arg: &f32, target_val: f32) -> bool {
[INFO] [stderr]    |                    ^^^^ help: consider passing by value instead: `f32`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/matcher.rs:104:20
[INFO] [stderr]     |
[INFO] [stderr] 104 | pub fn f64_eq(arg: &f64, target_val: f64) -> bool {
[INFO] [stderr]     |                    ^^^^ help: consider passing by value instead: `f64`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/matcher.rs:117:34
[INFO] [stderr]     |
[INFO] [stderr] 117 | pub fn nan_sensitive_f32_eq(arg: &f32, target_val: f32) -> bool {
[INFO] [stderr]     |                                  ^^^^ help: consider passing by value instead: `f32`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/matcher.rs:130:34
[INFO] [stderr]     |
[INFO] [stderr] 130 | pub fn nan_sensitive_f64_eq(arg: &f64, target_val: f64) -> bool {
[INFO] [stderr]     |                                  ^^^^ help: consider passing by value instead: `f64`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stderr]   --> src/mock.rs:34:10
[INFO] [stderr]    |
[INFO] [stderr] 34 |     fns: Ref<HashMap<C, fn(C) -> R>>,
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stderr]   --> src/mock.rs:35:15
[INFO] [stderr]    |
[INFO] [stderr] 35 |     closures: Ref<HashMap<C, Box<Fn(C) -> R>>>,
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[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/mock.rs:122:17
[INFO] [stderr]     |
[INFO] [stderr] 122 |             let ref mut sequence = *self.return_value_sequence.borrow_mut();
[INFO] [stderr]     |             ----^^^^^^^^^^^^^^^^-------------------------------------------- help: try: `let sequence = &mut (*self.return_value_sequence.borrow_mut());`
[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: use of `or_insert` followed by a function call
[INFO] [stderr]    --> src/mock.rs:781:26
[INFO] [stderr]     |
[INFO] [stderr] 781 |                         .or_insert(vec!())
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(|| vec!())`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `or_insert` followed by a function call
[INFO] [stderr]    --> src/mock.rs:804:26
[INFO] [stderr]     |
[INFO] [stderr] 804 |                         .or_insert(vec!())
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(|| vec!())`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]    --> src/mock.rs:919:13
[INFO] [stderr]     |
[INFO] [stderr] 919 | /             self.pattern_index_to_match_indices
[INFO] [stderr] 920 | |             .keys()
[INFO] [stderr] 921 | |             .map(|k| k.clone()));
[INFO] [stderr]     | |_______________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::map_clone)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] help: Consider calling the dedicated `cloned` method
[INFO] [stderr]     |
[INFO] [stderr] 919 |             self.pattern_index_to_match_indices
[INFO] [stderr] 920 |             .keys().cloned());
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/mock.rs:921:22
[INFO] [stderr]     |
[INFO] [stderr] 921 |             .map(|k| k.clone()));
[INFO] [stderr]     |                      ^^^^^^^^^ help: try dereferencing it: `*k`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::clone_on_copy)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]    --> src/mock.rs:923:13
[INFO] [stderr]     |
[INFO] [stderr] 923 | /             expected_indices
[INFO] [stderr] 924 | |             .difference(&expected_indices_matched)
[INFO] [stderr] 925 | |             .map(|i| i.clone()));
[INFO] [stderr]     | |_______________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] help: Consider calling the dedicated `cloned` method
[INFO] [stderr]     |
[INFO] [stderr] 923 |             expected_indices
[INFO] [stderr] 924 |             .difference(&expected_indices_matched).cloned());
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/mock.rs:925:22
[INFO] [stderr]     |
[INFO] [stderr] 925 |             .map(|i| i.clone()));
[INFO] [stderr]     |                      ^^^^^^^^^ help: try dereferencing it: `*i`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/mock.rs:932:9
[INFO] [stderr]     |
[INFO] [stderr] 932 |         unmatched_expectation_indices.len() == 0
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `unmatched_expectation_indices.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]     --> src/mock.rs:1020:39
[INFO] [stderr]      |
[INFO] [stderr] 1020 | fn generate_permutations(constraints: &Vec<Vec<usize>>) -> Vec<Vec<usize>> {
[INFO] [stderr]      |                                       ^^^^^^^^^^^^^^^^ help: change this to: `&[Vec<usize>]`
[INFO] [stderr]      |
[INFO] [stderr]      = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]     --> src/mock.rs:1035:18
[INFO] [stderr]      |
[INFO] [stderr] 1035 |     constraints: &Vec<Vec<usize>>,
[INFO] [stderr]      |                  ^^^^^^^^^^^^^^^^ help: change this to: `&[Vec<usize>]`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]     --> src/mock.rs:1040:49
[INFO] [stderr]      |
[INFO] [stderr] 1040 |             permutation_buffer[current_index] = val.clone();
[INFO] [stderr]      |                                                 ^^^^^^^^^^^ help: try dereferencing it: `*val`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]   --> examples/function.rs:36:26
[INFO] [stderr]    |
[INFO] [stderr] 36 |     mock.use_closure_for((3), Box::new(|x| x * 2));
[INFO] [stderr]    |                          ^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]   --> examples/macro.rs:95:9
[INFO] [stderr]    |
[INFO] [stderr] 95 |         (42),
[INFO] [stderr]    |         ^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]    --> examples/macro.rs:104:40
[INFO] [stderr]     |
[INFO] [stderr] 104 |     store.delete_user.return_value_for((42), Ok(()));
[INFO] [stderr]     |                                        ^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: in an 'if' condition, avoid complex blocks or closures with blocks; instead, move the block or closure higher and bind it with a 'let'
[INFO] [stderr]   --> examples/pattern_matching.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |         matcher!( p!(eq, 42) )
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::block_in_if_condition_stmt)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#block_in_if_condition_stmt
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: in an 'if' condition, avoid complex blocks or closures with blocks; instead, move the block or closure higher and bind it with a 'let'
[INFO] [stderr]   --> examples/pattern_matching.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |         matcher!( p!(gt, 84) )
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#block_in_if_condition_stmt
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: in an 'if' condition, avoid complex blocks or closures with blocks; instead, move the block or closure higher and bind it with a 'let'
[INFO] [stderr]   --> examples/pattern_matching.rs:37:9
[INFO] [stderr]    |
[INFO] [stderr] 37 |         matcher!( p!(between_inc, 42, 84) )
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#block_in_if_condition_stmt
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: in an 'if' condition, avoid complex blocks or closures with blocks; instead, move the block or closure higher and bind it with a 'let'
[INFO] [stderr]   --> examples/pattern_matching.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |         matcher!( p!(between_exc, 42, 84) )
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#block_in_if_condition_stmt
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: in an 'if' condition, avoid complex blocks or closures with blocks; instead, move the block or closure higher and bind it with a 'let'
[INFO] [stderr]   --> examples/pattern_matching.rs:44:9
[INFO] [stderr]    |
[INFO] [stderr] 44 |         matcher!( p!(not, p!(gt, 84)) )
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#block_in_if_condition_stmt
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: in an 'if' condition, avoid complex blocks or closures with blocks; instead, move the block or closure higher and bind it with a 'let'
[INFO] [stderr]   --> examples/pattern_matching.rs:47:9
[INFO] [stderr]    |
[INFO] [stderr] 47 |         matcher!( p!(not, p!(gt, 0)) )
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#block_in_if_condition_stmt
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: in an 'if' condition, avoid complex blocks or closures with blocks; instead, move the block or closure higher and bind it with a 'let'
[INFO] [stderr]   --> examples/pattern_matching.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 |         matcher!( p!(all_of, vec!(p!(gt, 40), p!(lt, 90))) )
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#block_in_if_condition_stmt
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: in an 'if' condition, avoid complex blocks or closures with blocks; instead, move the block or closure higher and bind it with a 'let'
[INFO] [stderr]   --> examples/pattern_matching.rs:54:9
[INFO] [stderr]    |
[INFO] [stderr] 54 |         matcher!( p!(all_of, vec!(p!(gt, 40), p!(lt, 42))) )
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#block_in_if_condition_stmt
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: in an 'if' condition, avoid complex blocks or closures with blocks; instead, move the block or closure higher and bind it with a 'let'
[INFO] [stderr]   --> examples/pattern_matching.rs:58:9
[INFO] [stderr]    |
[INFO] [stderr] 58 |         matcher!( p!(any_of, vec!(p!(lt, 100), p!(gt, 200))) )
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#block_in_if_condition_stmt
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: in an 'if' condition, avoid complex blocks or closures with blocks; instead, move the block or closure higher and bind it with a 'let'
[INFO] [stderr]   --> examples/pattern_matching.rs:61:9
[INFO] [stderr]    |
[INFO] [stderr] 61 |         matcher!( p!(any_of, vec!(p!(lt, 5), p!(gt, 200))) )
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#block_in_if_condition_stmt
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: in an 'if' condition, avoid complex blocks or closures with blocks; instead, move the block or closure higher and bind it with a 'let'
[INFO] [stderr]   --> examples/pattern_matching.rs:65:9
[INFO] [stderr]    |
[INFO] [stderr] 65 |         matcher!( p!(eq, 42), p!(eq, false) )
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#block_in_if_condition_stmt
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: in an 'if' condition, avoid complex blocks or closures with blocks; instead, move the block or closure higher and bind it with a 'let'
[INFO] [stderr]   --> examples/pattern_matching.rs:70:9
[INFO] [stderr]    |
[INFO] [stderr] 70 |         matcher!( p!(eq, 42), p!(eq, false) )
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#block_in_if_condition_stmt
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: in an 'if' condition, avoid complex blocks or closures with blocks; instead, move the block or closure higher and bind it with a 'let'
[INFO] [stderr]   --> examples/pattern_matching.rs:76:9
[INFO] [stderr]    |
[INFO] [stderr] 76 |         matcher!( p!(is_ok, p!(ge, 50)) )
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#block_in_if_condition_stmt
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: in an 'if' condition, avoid complex blocks or closures with blocks; instead, move the block or closure higher and bind it with a 'let'
[INFO] [stderr]   --> examples/pattern_matching.rs:79:9
[INFO] [stderr]    |
[INFO] [stderr] 79 |         matcher!( p!(is_err, p!(contains, "sad")) )
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#block_in_if_condition_stmt
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: in an 'if' condition, avoid complex blocks or closures with blocks; instead, move the block or closure higher and bind it with a 'let'
[INFO] [stderr]   --> examples/pattern_matching.rs:82:9
[INFO] [stderr]    |
[INFO] [stderr] 82 |         matcher!( p!(is_err, p!(contains, "happy")) )
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#block_in_if_condition_stmt
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: in an 'if' condition, avoid complex blocks or closures with blocks; instead, move the block or closure higher and bind it with a 'let'
[INFO] [stderr]   --> examples/pattern_matching.rs:85:9
[INFO] [stderr]    |
[INFO] [stderr] 85 | /         matcher!(
[INFO] [stderr] 86 | |             p!(is_ok,
[INFO] [stderr] 87 | |                 p!(all_of, vec!(
[INFO] [stderr] 88 | |                     p!(ge, 50),
[INFO] [stderr] 89 | |                     p!(le, 60)))))
[INFO] [stderr]    | |__________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#block_in_if_condition_stmt
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.15s
[INFO] running `"docker" "inspect" "c1e3881189d8cd71fb658ed3108246b39547380bde363387d1cec08360922442"`
[INFO] running `"docker" "rm" "-f" "c1e3881189d8cd71fb658ed3108246b39547380bde363387d1cec08360922442"`
[INFO] [stdout] c1e3881189d8cd71fb658ed3108246b39547380bde363387d1cec08360922442