[INFO] crate wasm-bindgen-webidl 0.2.23 is already in cache
[INFO] extracting crate wasm-bindgen-webidl 0.2.23 into work/ex/clippy-test-run/sources/stable/reg/wasm-bindgen-webidl/0.2.23
[INFO] extracting crate wasm-bindgen-webidl 0.2.23 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/wasm-bindgen-webidl/0.2.23
[INFO] validating manifest of wasm-bindgen-webidl-0.2.23 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 wasm-bindgen-webidl-0.2.23 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 wasm-bindgen-webidl-0.2.23
[INFO] finished frobbing wasm-bindgen-webidl-0.2.23
[INFO] frobbed toml for wasm-bindgen-webidl-0.2.23 written to work/ex/clippy-test-run/sources/stable/reg/wasm-bindgen-webidl/0.2.23/Cargo.toml
[INFO] started frobbing wasm-bindgen-webidl-0.2.23
[INFO] finished frobbing wasm-bindgen-webidl-0.2.23
[INFO] frobbed toml for wasm-bindgen-webidl-0.2.23 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/wasm-bindgen-webidl/0.2.23/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 wasm-bindgen-webidl-0.2.23 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-7/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/wasm-bindgen-webidl/0.2.23:/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] b6735e1d894b6782589c4c9e4b66e0fdabfd8db6f9cdd6882d9f64597a479da6
[INFO] running `"docker" "start" "-a" "b6735e1d894b6782589c4c9e4b66e0fdabfd8db6f9cdd6882d9f64597a479da6"`
[INFO] [stderr]    Compiling memchr v2.1.3
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.29
[INFO] [stderr]     Checking heck v0.3.1
[INFO] [stderr]     Checking backtrace-sys v0.1.28
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]     Checking backtrace v0.3.13
[INFO] [stderr]     Checking nom v4.1.1
[INFO] [stderr]     Checking weedle v0.8.0
[INFO] [stderr]     Checking wasm-bindgen-backend v0.2.29
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking wasm-bindgen-webidl v0.2.23 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/error.rs:63:17
[INFO] [stderr]    |
[INFO] [stderr] 63 |         Error { inner: inner }
[INFO] [stderr]    |                 ^^^^^^^^^^^^ help: replace it with: `inner`
[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/lib.rs:136:9
[INFO] [stderr]     |
[INFO] [stderr] 136 |         submodules: submodules,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `submodules`
[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/error.rs:63:17
[INFO] [stderr]    |
[INFO] [stderr] 63 |         Error { inner: inner }
[INFO] [stderr]    |                 ^^^^^^^^^^^^ help: replace it with: `inner`
[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/lib.rs:136:9
[INFO] [stderr]     |
[INFO] [stderr] 136 |         submodules: submodules,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `submodules`
[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: this if statement can be collapsed
[INFO] [stderr]    --> src/first_pass.rs:757:9
[INFO] [stderr]     |
[INFO] [stderr] 757 | /         if self.interfaces.contains_key(superclass) {
[INFO] [stderr] 758 | |             if set.insert(superclass) {
[INFO] [stderr] 759 | |                 list.push(camel_case_ident(superclass));
[INFO] [stderr] 760 | |                 self.fill_superclasses(superclass, set, list);
[INFO] [stderr] 761 | |             }
[INFO] [stderr] 762 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 757 |         if self.interfaces.contains_key(superclass) && set.insert(superclass) {
[INFO] [stderr] 758 |     list.push(camel_case_ident(superclass));
[INFO] [stderr] 759 |     self.fill_superclasses(superclass, set, list);
[INFO] [stderr] 760 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/util.rs:628:9
[INFO] [stderr]     |
[INFO] [stderr] 628 |         return ret;
[INFO] [stderr]     |         ^^^^^^^^^^^ help: remove `return` as shown: `ret`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]    --> src/util.rs:531:21
[INFO] [stderr]     |
[INFO] [stderr] 531 | /                     if other.orig.args.get(i).map(|s| s.name) == Some(arg_name) {
[INFO] [stderr] 532 | |                         if !ptr::eq(signature, other) {
[INFO] [stderr] 533 | |                             any_same_name = true;
[INFO] [stderr] 534 | |                         }
[INFO] [stderr] 535 | |                     }
[INFO] [stderr]     | |_____________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 531 |                     if other.orig.args.get(i).map(|s| s.name) == Some(arg_name) && !ptr::eq(signature, other) {
[INFO] [stderr] 532 |     any_same_name = true;
[INFO] [stderr] 533 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:346:9
[INFO] [stderr]     |
[INFO] [stderr] 346 |         return true;
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: remove `return` as shown: `true`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:413:9
[INFO] [stderr]     |
[INFO] [stderr] 413 |         return ret;
[INFO] [stderr]     |         ^^^^^^^^^^^ help: remove `return` as shown: `ret`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]    --> src/first_pass.rs:757:9
[INFO] [stderr]     |
[INFO] [stderr] 757 | /         if self.interfaces.contains_key(superclass) {
[INFO] [stderr] 758 | |             if set.insert(superclass) {
[INFO] [stderr] 759 | |                 list.push(camel_case_ident(superclass));
[INFO] [stderr] 760 | |                 self.fill_superclasses(superclass, set, list);
[INFO] [stderr] 761 | |             }
[INFO] [stderr] 762 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 757 |         if self.interfaces.contains_key(superclass) && set.insert(superclass) {
[INFO] [stderr] 758 |     list.push(camel_case_ident(superclass));
[INFO] [stderr] 759 |     self.fill_superclasses(superclass, set, list);
[INFO] [stderr] 760 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/util.rs:628:9
[INFO] [stderr]     |
[INFO] [stderr] 628 |         return ret;
[INFO] [stderr]     |         ^^^^^^^^^^^ help: remove `return` as shown: `ret`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]    --> src/util.rs:531:21
[INFO] [stderr]     |
[INFO] [stderr] 531 | /                     if other.orig.args.get(i).map(|s| s.name) == Some(arg_name) {
[INFO] [stderr] 532 | |                         if !ptr::eq(signature, other) {
[INFO] [stderr] 533 | |                             any_same_name = true;
[INFO] [stderr] 534 | |                         }
[INFO] [stderr] 535 | |                     }
[INFO] [stderr]     | |_____________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 531 |                     if other.orig.args.get(i).map(|s| s.name) == Some(arg_name) && !ptr::eq(signature, other) {
[INFO] [stderr] 532 |     any_same_name = true;
[INFO] [stderr] 533 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:346:9
[INFO] [stderr]     |
[INFO] [stderr] 346 |         return true;
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: remove `return` as shown: `true`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:413:9
[INFO] [stderr]     |
[INFO] [stderr] 413 |         return ret;
[INFO] [stderr]     |         ^^^^^^^^^^^ help: remove `return` as shown: `ret`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: this function has too many arguments (8/7)
[INFO] [stderr]    --> src/first_pass.rs:223:1
[INFO] [stderr]     |
[INFO] [stderr] 223 | / fn first_pass_operation<'src>(
[INFO] [stderr] 224 | |     record: &mut FirstPassRecord<'src>,
[INFO] [stderr] 225 | |     first_pass_operation_type: FirstPassOperationType,
[INFO] [stderr] 226 | |     self_name: &'src str,
[INFO] [stderr] ...   |
[INFO] [stderr] 293 | |     }
[INFO] [stderr] 294 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::too_many_arguments)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#too_many_arguments
[INFO] [stderr] 
[INFO] [stderr] warning: use of `expect` followed by a function call
[INFO] [stderr]    --> src/first_pass.rs:249:18
[INFO] [stderr]     |
[INFO] [stderr] 249 |                 .expect(&format!("not found {} interface", self_name));
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| panic!("not found {} interface", self_name))`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::expect_fun_call)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#expect_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `expect` followed by a function call
[INFO] [stderr]    --> src/first_pass.rs:256:18
[INFO] [stderr]     |
[INFO] [stderr] 256 |                 .expect(&format!("not found {} mixin", self_name));
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| panic!("not found {} mixin", self_name))`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#expect_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `expect` followed by a function call
[INFO] [stderr]    --> src/first_pass.rs:263:18
[INFO] [stderr]     |
[INFO] [stderr] 263 |                 .expect(&format!("not found {} namespace", self_name));
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| panic!("not found {} namespace", self_name))`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#expect_fun_call
[INFO] [stderr] 
[INFO] [stderr] error: using `clone` on a double-reference; this will copy the reference instead of cloning the inner type
[INFO] [stderr]    --> src/first_pass.rs:592:62
[INFO] [stderr]     |
[INFO] [stderr] 592 |             &[OperationId::Operation(self.identifier.map(|s| s.0.clone()))],
[INFO] [stderr]     |                                                              ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::clone_double_ref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_double_ref
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]     |
[INFO] [stderr] 592 |             &[OperationId::Operation(self.identifier.map(|s| &(*s.0).clone()))],
[INFO] [stderr]     |                                                              ^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 592 |             &[OperationId::Operation(self.identifier.map(|s| &str::clone(s.0)))],
[INFO] [stderr]     |                                                              ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: using `clone` on a double-reference; this will copy the reference instead of cloning the inner type
[INFO] [stderr]    --> src/first_pass.rs:697:62
[INFO] [stderr]     |
[INFO] [stderr] 697 |             &[OperationId::Operation(self.identifier.map(|s| s.0.clone()))],
[INFO] [stderr]     |                                                              ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_double_ref
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]     |
[INFO] [stderr] 697 |             &[OperationId::Operation(self.identifier.map(|s| &(*s.0).clone()))],
[INFO] [stderr]     |                                                              ^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 697 |             &[OperationId::Operation(self.identifier.map(|s| &str::clone(s.0)))],
[INFO] [stderr]     |                                                              ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this function has too many arguments (8/7)
[INFO] [stderr]    --> src/first_pass.rs:223:1
[INFO] [stderr]     |
[INFO] [stderr] 223 | / fn first_pass_operation<'src>(
[INFO] [stderr] 224 | |     record: &mut FirstPassRecord<'src>,
[INFO] [stderr] 225 | |     first_pass_operation_type: FirstPassOperationType,
[INFO] [stderr] 226 | |     self_name: &'src str,
[INFO] [stderr] ...   |
[INFO] [stderr] 293 | |     }
[INFO] [stderr] 294 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::too_many_arguments)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#too_many_arguments
[INFO] [stderr] 
[INFO] [stderr] warning: use of `expect` followed by a function call
[INFO] [stderr]    --> src/first_pass.rs:249:18
[INFO] [stderr]     |
[INFO] [stderr] 249 |                 .expect(&format!("not found {} interface", self_name));
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| panic!("not found {} interface", self_name))`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::expect_fun_call)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#expect_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `expect` followed by a function call
[INFO] [stderr]    --> src/first_pass.rs:256:18
[INFO] [stderr]     |
[INFO] [stderr] 256 |                 .expect(&format!("not found {} mixin", self_name));
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| panic!("not found {} mixin", self_name))`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#expect_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `expect` followed by a function call
[INFO] [stderr]    --> src/first_pass.rs:263:18
[INFO] [stderr]     |
[INFO] [stderr] 263 |                 .expect(&format!("not found {} namespace", self_name));
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| panic!("not found {} namespace", self_name))`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#expect_fun_call
[INFO] [stderr] 
[INFO] [stderr] error: using `clone` on a double-reference; this will copy the reference instead of cloning the inner type
[INFO] [stderr]    --> src/first_pass.rs:592:62
[INFO] [stderr]     |
[INFO] [stderr] 592 |             &[OperationId::Operation(self.identifier.map(|s| s.0.clone()))],
[INFO] [stderr]     |                                                              ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::clone_double_ref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_double_ref
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]     |
[INFO] [stderr] 592 |             &[OperationId::Operation(self.identifier.map(|s| &(*s.0).clone()))],
[INFO] [stderr]     |                                                              ^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 592 |             &[OperationId::Operation(self.identifier.map(|s| &str::clone(s.0)))],
[INFO] [stderr]     |                                                              ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the `idl_type @ _` pattern can be written as just `idl_type`
[INFO] [stderr]    --> src/idl_type.rs:661:13
[INFO] [stderr]     |
[INFO] [stderr] 661 |             idl_type @ _ => vec![idl_type.clone()],
[INFO] [stderr]     |             ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_pattern)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]   --> src/util.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 67 |     format!("[MDN Documentation]({})", link).into()
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `.into()`: `format!("[MDN Documentation]({})", link)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::identity_conversion)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] error: using `clone` on a double-reference; this will copy the reference instead of cloning the inner type
[INFO] [stderr]    --> src/first_pass.rs:697:62
[INFO] [stderr]     |
[INFO] [stderr] 697 |             &[OperationId::Operation(self.identifier.map(|s| s.0.clone()))],
[INFO] [stderr]     |                                                              ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_double_ref
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]     |
[INFO] [stderr] 697 |             &[OperationId::Operation(self.identifier.map(|s| &(*s.0).clone()))],
[INFO] [stderr]     |                                                              ^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 697 |             &[OperationId::Operation(self.identifier.map(|s| &str::clone(s.0)))],
[INFO] [stderr]     |                                                              ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/util.rs:98:65
[INFO] [stderr]    |
[INFO] [stderr] 98 |                 let (negative, text) = if orig_text.starts_with("-") {
[INFO] [stderr]    |                                                                 ^^^ help: try using a char instead: `'-'`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_char_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: this function has too many arguments (10/7)
[INFO] [stderr]    --> src/util.rs:222:5
[INFO] [stderr]     |
[INFO] [stderr] 222 | /     pub fn create_one_function<'a>(
[INFO] [stderr] 223 | |         &self,
[INFO] [stderr] 224 | |         js_name: &str,
[INFO] [stderr] 225 | |         rust_name: &str,
[INFO] [stderr] ...   |
[INFO] [stderr] 326 | |         })
[INFO] [stderr] 327 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#too_many_arguments
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to both the expression and the patterns
[INFO] [stderr]    --> src/util.rs:242:29
[INFO] [stderr]     |
[INFO] [stderr] 242 |           let mut arguments = if let &backend::ast::ImportFunctionKind::Method {
[INFO] [stderr]     |  _____________________________^
[INFO] [stderr] 243 | |             ref ty,
[INFO] [stderr] 244 | |             kind:
[INFO] [stderr] 245 | |                 backend::ast::MethodKind::Operation(backend::ast::Operation {
[INFO] [stderr] ...   |
[INFO] [stderr] 258 | |             Vec::with_capacity(idl_arguments.size_hint().0)
[INFO] [stderr] 259 | |         };
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 242 |         let mut arguments = if let backend::ast::ImportFunctionKind::Method {
[INFO] [stderr] 243 |             ref ty,
[INFO] [stderr] 244 |             kind:
[INFO] [stderr] 245 |                 backend::ast::MethodKind::Operation(backend::ast::Operation {
[INFO] [stderr] 246 |                     is_static: false, ..
[INFO] [stderr] 247 |                 }),
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: the `ret @ _` pattern can be written as just `ret`
[INFO] [stderr]    --> src/util.rs:287:13
[INFO] [stderr]     |
[INFO] [stderr] 287 |             ret @ _ => match ret.to_syn_type(TypePosition::Return) {
[INFO] [stderr]     |             ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: the function has a cyclomatic complexity of 27
[INFO] [stderr]    --> src/util.rs:407:5
[INFO] [stderr]     |
[INFO] [stderr] 407 | /     pub fn create_imports(
[INFO] [stderr] 408 | |         &self,
[INFO] [stderr] 409 | |         container_attrs: Option<&ExtendedAttributeList<'src>>,
[INFO] [stderr] 410 | |         kind: backend::ast::ImportFunctionKind,
[INFO] [stderr] ...   |
[INFO] [stderr] 628 | |         return ret;
[INFO] [stderr] 629 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cyclomatic_complexity)] on by default
[INFO] [stderr]     = help: you could split it up into multiple smaller functions
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cyclomatic_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: unused label `'outer`
[INFO] [stderr]    --> src/util.rs:423:9
[INFO] [stderr]     |
[INFO] [stderr] 423 | /         'outer: for signature in data.signatures.iter() {
[INFO] [stderr] 424 | |             let mut idl_args = Vec::with_capacity(signature.args.len());
[INFO] [stderr] 425 | |             for (i, arg) in signature.args.iter().enumerate() {
[INFO] [stderr] 426 | |                 if arg.optional {
[INFO] [stderr] ...   |
[INFO] [stderr] 438 | |             signatures.push((signature, idl_args));
[INFO] [stderr] 439 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unused_label)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_label
[INFO] [stderr] 
[INFO] [stderr] error: using `clone` on a double-reference; this will copy the reference instead of cloning the inner type
[INFO] [stderr]    --> src/util.rs:617:65
[INFO] [stderr]     |
[INFO] [stderr] 617 |                             .map(|(name, idl_type)| (&name[..], idl_type.clone())),
[INFO] [stderr]     |                                                                 ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_double_ref
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]     |
[INFO] [stderr] 617 |                             .map(|(name, idl_type)| (&name[..], &(*idl_type).clone())),
[INFO] [stderr]     |                                                                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 617 |                             .map(|(name, idl_type)| (&name[..], &idl_type::IdlType<'_>::clone(idl_type))),
[INFO] [stderr]     |                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/lib.rs:362:44
[INFO] [stderr]     |
[INFO] [stderr] 362 |               syn::Type::Reference(ref i) => match &*i.elem {
[INFO] [stderr]     |  ____________________________________________^
[INFO] [stderr] 363 | |                 syn::Type::Slice(_) => return None,
[INFO] [stderr] 364 | |                 _ => (),
[INFO] [stderr] 365 | |             },
[INFO] [stderr]     | |_____________^ help: try this: `if let syn::Type::Slice(_) = &*i.elem { return None }`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/lib.rs:373:33
[INFO] [stderr]     |
[INFO] [stderr] 373 | /                                 match &*i.elem {
[INFO] [stderr] 374 | |                                     syn::Type::Slice(_) => return None,
[INFO] [stderr] 375 | |                                     _ => (),
[INFO] [stderr] 376 | |                                 }
[INFO] [stderr]     | |_________________________________^ help: try this: `if let syn::Type::Slice(_) = &*i.elem { return None }`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/lib.rs:506:9
[INFO] [stderr]     |
[INFO] [stderr] 506 | /         match name {
[INFO] [stderr] 507 | |             "AudioContext" => {
[INFO] [stderr] 508 | |                 import_type
[INFO] [stderr] 509 | |                     .vendor_prefixes
[INFO] [stderr] ...   |
[INFO] [stderr] 512 | |             _ => {}
[INFO] [stderr] 513 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 506 |         if let "AudioContext" = name {
[INFO] [stderr] 507 |     import_type
[INFO] [stderr] 508 |         .vendor_prefixes
[INFO] [stderr] 509 |         .push(Ident::new("webkit", Span::call_site()));
[INFO] [stderr] 510 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: the `idl_type @ _` pattern can be written as just `idl_type`
[INFO] [stderr]    --> src/idl_type.rs:661:13
[INFO] [stderr]     |
[INFO] [stderr] 661 |             idl_type @ _ => vec![idl_type.clone()],
[INFO] [stderr]     |             ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_pattern)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: this function has too many arguments (10/7)
[INFO] [stderr]    --> src/lib.rs:577:5
[INFO] [stderr]     |
[INFO] [stderr] 577 | /     fn member_attribute(
[INFO] [stderr] 578 | |         &self,
[INFO] [stderr] 579 | |         program: &mut backend::ast::Program,
[INFO] [stderr] 580 | |         self_name: &'src str,
[INFO] [stderr] ...   |
[INFO] [stderr] 627 | |         }
[INFO] [stderr] 628 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#too_many_arguments
[INFO] [stderr] 
[INFO] [stderr] error: for loop over `self.create_getter(
[INFO] [stderr]             identifier,
[INFO] [stderr]             &type_.type_,
[INFO] [stderr]             self_name,
[INFO] [stderr]             is_static,
[INFO] [stderr]             attrs,
[INFO] [stderr]             container_attrs,
[INFO] [stderr]         )`, which is an `Option`. This is more readably written as an `if let` statement.
[INFO] [stderr]    --> src/lib.rs:598:36
[INFO] [stderr]     |
[INFO] [stderr] 598 |           for mut import_function in self.create_getter(
[INFO] [stderr]     |  ____________________________________^
[INFO] [stderr] 599 | |             identifier,
[INFO] [stderr] 600 | |             &type_.type_,
[INFO] [stderr] 601 | |             self_name,
[INFO] [stderr] ...   |
[INFO] [stderr] 604 | |             container_attrs,
[INFO] [stderr] 605 | |         ) {
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::for_loop_over_option)] on by default
[INFO] [stderr]     = help: consider replacing `for mut import_function in self.create_getter(
[INFO] [stderr]                         identifier,
[INFO] [stderr]                         &type_.type_,
[INFO] [stderr]                         self_name,
[INFO] [stderr]                         is_static,
[INFO] [stderr]                         attrs,
[INFO] [stderr]                         container_attrs,
[INFO] [stderr]                     )` with `if let Some(mut import_function) = self.create_getter(
[INFO] [stderr]                         identifier,
[INFO] [stderr]                         &type_.type_,
[INFO] [stderr]                         self_name,
[INFO] [stderr]                         is_static,
[INFO] [stderr]                         attrs,
[INFO] [stderr]                         container_attrs,
[INFO] [stderr]                     )`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#for_loop_over_option
[INFO] [stderr] 
[INFO] [stderr] error: for loop over `self.create_setter(
[INFO] [stderr]                 identifier,
[INFO] [stderr]                 &type_.type_,
[INFO] [stderr]                 self_name,
[INFO] [stderr]                 is_static,
[INFO] [stderr]                 attrs,
[INFO] [stderr]                 container_attrs,
[INFO] [stderr]             )`, which is an `Option`. This is more readably written as an `if let` statement.
[INFO] [stderr]    --> src/lib.rs:613:40
[INFO] [stderr]     |
[INFO] [stderr] 613 |               for mut import_function in self.create_setter(
[INFO] [stderr]     |  ________________________________________^
[INFO] [stderr] 614 | |                 identifier,
[INFO] [stderr] 615 | |                 &type_.type_,
[INFO] [stderr] 616 | |                 self_name,
[INFO] [stderr] ...   |
[INFO] [stderr] 619 | |                 container_attrs,
[INFO] [stderr] 620 | |             ) {
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider replacing `for mut import_function in self.create_setter(
[INFO] [stderr]                             identifier,
[INFO] [stderr]                             &type_.type_,
[INFO] [stderr]                             self_name,
[INFO] [stderr]                             is_static,
[INFO] [stderr]                             attrs,
[INFO] [stderr]                             container_attrs,
[INFO] [stderr]                         )` with `if let Some(mut import_function) = self.create_setter(
[INFO] [stderr]                             identifier,
[INFO] [stderr]                             &type_.type_,
[INFO] [stderr]                             self_name,
[INFO] [stderr]                             is_static,
[INFO] [stderr]                             attrs,
[INFO] [stderr]                             container_attrs,
[INFO] [stderr]                         )`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#for_loop_over_option
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> src/lib.rs:673:49
[INFO] [stderr]     |
[INFO] [stderr] 673 |             OperationId::IndexingGetter => Some(format!("The indexing getter\n\n")),
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"The indexing getter\n\n".to_string()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::useless_format)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> src/lib.rs:674:49
[INFO] [stderr]     |
[INFO] [stderr] 674 |             OperationId::IndexingSetter => Some(format!("The indexing setter\n\n")),
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"The indexing setter\n\n".to_string()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> src/lib.rs:675:50
[INFO] [stderr]     |
[INFO] [stderr] 675 |             OperationId::IndexingDeleter => Some(format!("The indexing deleter\n\n")),
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"The indexing deleter\n\n".to_string()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]   --> src/util.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 67 |     format!("[MDN Documentation]({})", link).into()
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `.into()`: `format!("[MDN Documentation]({})", link)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::identity_conversion)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/util.rs:98:65
[INFO] [stderr]    |
[INFO] [stderr] 98 |                 let (negative, text) = if orig_text.starts_with("-") {
[INFO] [stderr]    |                                                                 ^^^ help: try using a char instead: `'-'`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_char_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/lib.rs:714:12
[INFO] [stderr]     |
[INFO] [stderr] 714 |         if required.len() == 0 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `required.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: this function has too many arguments (10/7)
[INFO] [stderr]    --> src/util.rs:222:5
[INFO] [stderr]     |
[INFO] [stderr] 222 | /     pub fn create_one_function<'a>(
[INFO] [stderr] 223 | |         &self,
[INFO] [stderr] 224 | |         js_name: &str,
[INFO] [stderr] 225 | |         rust_name: &str,
[INFO] [stderr] ...   |
[INFO] [stderr] 326 | |         })
[INFO] [stderr] 327 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#too_many_arguments
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to both the expression and the patterns
[INFO] [stderr]    --> src/util.rs:242:29
[INFO] [stderr]     |
[INFO] [stderr] 242 |           let mut arguments = if let &backend::ast::ImportFunctionKind::Method {
[INFO] [stderr]     |  _____________________________^
[INFO] [stderr] 243 | |             ref ty,
[INFO] [stderr] 244 | |             kind:
[INFO] [stderr] 245 | |                 backend::ast::MethodKind::Operation(backend::ast::Operation {
[INFO] [stderr] ...   |
[INFO] [stderr] 258 | |             Vec::with_capacity(idl_arguments.size_hint().0)
[INFO] [stderr] 259 | |         };
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 242 |         let mut arguments = if let backend::ast::ImportFunctionKind::Method {
[INFO] [stderr] 243 |             ref ty,
[INFO] [stderr] 244 |             kind:
[INFO] [stderr] 245 |                 backend::ast::MethodKind::Operation(backend::ast::Operation {
[INFO] [stderr] 246 |                     is_static: false, ..
[INFO] [stderr] 247 |                 }),
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: the `ret @ _` pattern can be written as just `ret`
[INFO] [stderr]    --> src/util.rs:287:13
[INFO] [stderr]     |
[INFO] [stderr] 287 |             ret @ _ => match ret.to_syn_type(TypePosition::Return) {
[INFO] [stderr]     |             ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 5 previous errors
[INFO] [stderr] 
[INFO] [stderr] warning: the function has a cyclomatic complexity of 27
[INFO] [stderr]    --> src/util.rs:407:5
[INFO] [stderr]     |
[INFO] [stderr] 407 | /     pub fn create_imports(
[INFO] [stderr] 408 | |         &self,
[INFO] [stderr] 409 | |         container_attrs: Option<&ExtendedAttributeList<'src>>,
[INFO] [stderr] 410 | |         kind: backend::ast::ImportFunctionKind,
[INFO] [stderr] ...   |
[INFO] [stderr] 628 | |         return ret;
[INFO] [stderr] 629 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cyclomatic_complexity)] on by default
[INFO] [stderr]     = help: you could split it up into multiple smaller functions
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cyclomatic_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: unused label `'outer`
[INFO] [stderr]    --> src/util.rs:423:9
[INFO] [stderr]     |
[INFO] [stderr] 423 | /         'outer: for signature in data.signatures.iter() {
[INFO] [stderr] 424 | |             let mut idl_args = Vec::with_capacity(signature.args.len());
[INFO] [stderr] 425 | |             for (i, arg) in signature.args.iter().enumerate() {
[INFO] [stderr] 426 | |                 if arg.optional {
[INFO] [stderr] ...   |
[INFO] [stderr] 438 | |             signatures.push((signature, idl_args));
[INFO] [stderr] 439 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unused_label)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_label
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `wasm-bindgen-webidl`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: using `clone` on a double-reference; this will copy the reference instead of cloning the inner type
[INFO] [stderr]    --> src/util.rs:617:65
[INFO] [stderr]     |
[INFO] [stderr] 617 |                             .map(|(name, idl_type)| (&name[..], idl_type.clone())),
[INFO] [stderr]     |                                                                 ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_double_ref
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]     |
[INFO] [stderr] 617 |                             .map(|(name, idl_type)| (&name[..], &(*idl_type).clone())),
[INFO] [stderr]     |                                                                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 617 |                             .map(|(name, idl_type)| (&name[..], &idl_type::IdlType<'_>::clone(idl_type))),
[INFO] [stderr]     |                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/lib.rs:362:44
[INFO] [stderr]     |
[INFO] [stderr] 362 |               syn::Type::Reference(ref i) => match &*i.elem {
[INFO] [stderr]     |  ____________________________________________^
[INFO] [stderr] 363 | |                 syn::Type::Slice(_) => return None,
[INFO] [stderr] 364 | |                 _ => (),
[INFO] [stderr] 365 | |             },
[INFO] [stderr]     | |_____________^ help: try this: `if let syn::Type::Slice(_) = &*i.elem { return None }`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/lib.rs:373:33
[INFO] [stderr]     |
[INFO] [stderr] 373 | /                                 match &*i.elem {
[INFO] [stderr] 374 | |                                     syn::Type::Slice(_) => return None,
[INFO] [stderr] 375 | |                                     _ => (),
[INFO] [stderr] 376 | |                                 }
[INFO] [stderr]     | |_________________________________^ help: try this: `if let syn::Type::Slice(_) = &*i.elem { return None }`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/lib.rs:506:9
[INFO] [stderr]     |
[INFO] [stderr] 506 | /         match name {
[INFO] [stderr] 507 | |             "AudioContext" => {
[INFO] [stderr] 508 | |                 import_type
[INFO] [stderr] 509 | |                     .vendor_prefixes
[INFO] [stderr] ...   |
[INFO] [stderr] 512 | |             _ => {}
[INFO] [stderr] 513 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 506 |         if let "AudioContext" = name {
[INFO] [stderr] 507 |     import_type
[INFO] [stderr] 508 |         .vendor_prefixes
[INFO] [stderr] 509 |         .push(Ident::new("webkit", Span::call_site()));
[INFO] [stderr] 510 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: this function has too many arguments (10/7)
[INFO] [stderr]    --> src/lib.rs:577:5
[INFO] [stderr]     |
[INFO] [stderr] 577 | /     fn member_attribute(
[INFO] [stderr] 578 | |         &self,
[INFO] [stderr] 579 | |         program: &mut backend::ast::Program,
[INFO] [stderr] 580 | |         self_name: &'src str,
[INFO] [stderr] ...   |
[INFO] [stderr] 627 | |         }
[INFO] [stderr] 628 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#too_many_arguments
[INFO] [stderr] 
[INFO] [stderr] error: for loop over `self.create_getter(
[INFO] [stderr]             identifier,
[INFO] [stderr]             &type_.type_,
[INFO] [stderr]             self_name,
[INFO] [stderr]             is_static,
[INFO] [stderr]             attrs,
[INFO] [stderr]             container_attrs,
[INFO] [stderr]         )`, which is an `Option`. This is more readably written as an `if let` statement.
[INFO] [stderr]    --> src/lib.rs:598:36
[INFO] [stderr]     |
[INFO] [stderr] 598 |           for mut import_function in self.create_getter(
[INFO] [stderr]     |  ____________________________________^
[INFO] [stderr] 599 | |             identifier,
[INFO] [stderr] 600 | |             &type_.type_,
[INFO] [stderr] 601 | |             self_name,
[INFO] [stderr] ...   |
[INFO] [stderr] 604 | |             container_attrs,
[INFO] [stderr] 605 | |         ) {
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::for_loop_over_option)] on by default
[INFO] [stderr]     = help: consider replacing `for mut import_function in self.create_getter(
[INFO] [stderr]                         identifier,
[INFO] [stderr]                         &type_.type_,
[INFO] [stderr]                         self_name,
[INFO] [stderr]                         is_static,
[INFO] [stderr]                         attrs,
[INFO] [stderr]                         container_attrs,
[INFO] [stderr]                     )` with `if let Some(mut import_function) = self.create_getter(
[INFO] [stderr]                         identifier,
[INFO] [stderr]                         &type_.type_,
[INFO] [stderr]                         self_name,
[INFO] [stderr]                         is_static,
[INFO] [stderr]                         attrs,
[INFO] [stderr]                         container_attrs,
[INFO] [stderr]                     )`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#for_loop_over_option
[INFO] [stderr] 
[INFO] [stderr] error: for loop over `self.create_setter(
[INFO] [stderr]                 identifier,
[INFO] [stderr]                 &type_.type_,
[INFO] [stderr]                 self_name,
[INFO] [stderr]                 is_static,
[INFO] [stderr]                 attrs,
[INFO] [stderr]                 container_attrs,
[INFO] [stderr]             )`, which is an `Option`. This is more readably written as an `if let` statement.
[INFO] [stderr]    --> src/lib.rs:613:40
[INFO] [stderr]     |
[INFO] [stderr] 613 |               for mut import_function in self.create_setter(
[INFO] [stderr]     |  ________________________________________^
[INFO] [stderr] 614 | |                 identifier,
[INFO] [stderr] 615 | |                 &type_.type_,
[INFO] [stderr] 616 | |                 self_name,
[INFO] [stderr] ...   |
[INFO] [stderr] 619 | |                 container_attrs,
[INFO] [stderr] 620 | |             ) {
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider replacing `for mut import_function in self.create_setter(
[INFO] [stderr]                             identifier,
[INFO] [stderr]                             &type_.type_,
[INFO] [stderr]                             self_name,
[INFO] [stderr]                             is_static,
[INFO] [stderr]                             attrs,
[INFO] [stderr]                             container_attrs,
[INFO] [stderr]                         )` with `if let Some(mut import_function) = self.create_setter(
[INFO] [stderr]                             identifier,
[INFO] [stderr]                             &type_.type_,
[INFO] [stderr]                             self_name,
[INFO] [stderr]                             is_static,
[INFO] [stderr]                             attrs,
[INFO] [stderr]                             container_attrs,
[INFO] [stderr]                         )`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#for_loop_over_option
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> src/lib.rs:673:49
[INFO] [stderr]     |
[INFO] [stderr] 673 |             OperationId::IndexingGetter => Some(format!("The indexing getter\n\n")),
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"The indexing getter\n\n".to_string()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::useless_format)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> src/lib.rs:674:49
[INFO] [stderr]     |
[INFO] [stderr] 674 |             OperationId::IndexingSetter => Some(format!("The indexing setter\n\n")),
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"The indexing setter\n\n".to_string()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> src/lib.rs:675:50
[INFO] [stderr]     |
[INFO] [stderr] 675 |             OperationId::IndexingDeleter => Some(format!("The indexing deleter\n\n")),
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"The indexing deleter\n\n".to_string()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/lib.rs:714:12
[INFO] [stderr]     |
[INFO] [stderr] 714 |         if required.len() == 0 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `required.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] error: aborting due to 5 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `wasm-bindgen-webidl`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "b6735e1d894b6782589c4c9e4b66e0fdabfd8db6f9cdd6882d9f64597a479da6"`
[INFO] running `"docker" "rm" "-f" "b6735e1d894b6782589c4c9e4b66e0fdabfd8db6f9cdd6882d9f64597a479da6"`
[INFO] [stdout] b6735e1d894b6782589c4c9e4b66e0fdabfd8db6f9cdd6882d9f64597a479da6