[INFO] crate wasm-bindgen-macro-support 0.2.29 is already in cache
[INFO] extracting crate wasm-bindgen-macro-support 0.2.29 into work/ex/clippy-test-run/sources/stable/reg/wasm-bindgen-macro-support/0.2.29
[INFO] extracting crate wasm-bindgen-macro-support 0.2.29 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/wasm-bindgen-macro-support/0.2.29
[INFO] validating manifest of wasm-bindgen-macro-support-0.2.29 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-macro-support-0.2.29 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-macro-support-0.2.29
[INFO] finished frobbing wasm-bindgen-macro-support-0.2.29
[INFO] frobbed toml for wasm-bindgen-macro-support-0.2.29 written to work/ex/clippy-test-run/sources/stable/reg/wasm-bindgen-macro-support/0.2.29/Cargo.toml
[INFO] started frobbing wasm-bindgen-macro-support-0.2.29
[INFO] finished frobbing wasm-bindgen-macro-support-0.2.29
[INFO] frobbed toml for wasm-bindgen-macro-support-0.2.29 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/wasm-bindgen-macro-support/0.2.29/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-macro-support-0.2.29 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-3/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/wasm-bindgen-macro-support/0.2.29:/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] 41bcb083a30fd254bd1681ea32aadb9056d460cde237efde456544fc37dcca90
[INFO] running `"docker" "start" "-a" "41bcb083a30fd254bd1681ea32aadb9056d460cde237efde456544fc37dcca90"`
[INFO] [stderr]     Checking proc-macro2 v0.4.26
[INFO] [stderr]     Checking wasm-bindgen-shared v0.2.29
[INFO] [stderr]     Checking quote v0.6.11
[INFO] [stderr]     Checking syn v0.15.26
[INFO] [stderr]     Checking wasm-bindgen-backend v0.2.29
[INFO] [stderr]     Checking wasm-bindgen-macro-support v0.2.29 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/parser.rs:259:9
[INFO] [stderr]     |
[INFO] [stderr] 259 |         return Err(original.error("unknown attribute"));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err(original.error("unknown attribute"))`
[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: You matched a field with a wildcard pattern. Consider using `..` instead
[INFO] [stderr]    --> src/parser.rs:940:29
[INFO] [stderr]     |
[INFO] [stderr] 940 |                             attrs: _,
[INFO] [stderr]     |                             ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unneeded_field_pattern)] on by default
[INFO] [stderr]     = help: Try with `ExprLit { lit: syn::Lit::Int(ref int_lit), .. }`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_field_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/parser.rs:259:9
[INFO] [stderr]     |
[INFO] [stderr] 259 |         return Err(original.error("unknown attribute"));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err(original.error("unknown attribute"))`
[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: You matched a field with a wildcard pattern. Consider using `..` instead
[INFO] [stderr]    --> src/parser.rs:940:29
[INFO] [stderr]     |
[INFO] [stderr] 940 |                             attrs: _,
[INFO] [stderr]     |                             ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unneeded_field_pattern)] on by default
[INFO] [stderr]     = help: Try with `ExprLit { lit: syn::Lit::Int(ref int_lit), .. }`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_field_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/parser.rs:291:12
[INFO] [stderr]     |
[INFO] [stderr] 291 |         if self.generics.params.len() > 0 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!self.generics.params.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: use of `unwrap_or` followed by a function call
[INFO] [stderr]    --> src/parser.rs:302:14
[INFO] [stderr]     |
[INFO] [stderr] 302 |             .unwrap_or(self.ident.to_string());
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| self.ident.to_string())`
[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: length comparison to zero
[INFO] [stderr]    --> src/parser.rs:625:8
[INFO] [stderr]     |
[INFO] [stderr] 625 |     if decl.generics.params.len() > 0 {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!decl.generics.params.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]    --> src/parser.rs:692:18
[INFO] [stderr]     |
[INFO] [stderr] 692 |                 .unwrap_or(decl_name.to_string()),
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| decl_name.to_string())`
[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: use of `unwrap_or` followed by a function call
[INFO] [stderr]    --> src/parser.rs:693:45
[INFO] [stderr]     |
[INFO] [stderr] 693 |             name_span: js_name.map(|s| s.1).unwrap_or(decl_name.span()),
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| decl_name.span())`
[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 seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/parser.rs:726:17
[INFO] [stderr]     |
[INFO] [stderr] 726 | /                 match no_mangle {
[INFO] [stderr] 727 | |                     Some((i, _)) => {
[INFO] [stderr] 728 | |                         f.attrs.remove(i);
[INFO] [stderr] 729 | |                     }
[INFO] [stderr] 730 | |                     _ => {}
[INFO] [stderr] 731 | |                 }
[INFO] [stderr]     | |_________________^
[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] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 726 |                 if let Some((i, _)) = no_mangle {
[INFO] [stderr] 727 |     f.attrs.remove(i);
[INFO] [stderr] 728 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/parser.rs:736:24
[INFO] [stderr]     |
[INFO] [stderr] 736 |                     if f.decl.generics.params.len() > 0 {
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!f.decl.generics.params.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/parser.rs:739:24
[INFO] [stderr]     |
[INFO] [stderr] 739 |                     if f.decl.inputs.len() > 0 {
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!f.decl.inputs.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/parser.rs:815:12
[INFO] [stderr]     |
[INFO] [stderr] 815 |         if self.generics.params.len() > 0 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!self.generics.params.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]    --> src/parser.rs:903:14
[INFO] [stderr]     |
[INFO] [stderr] 903 |             .unwrap_or(class.to_string());
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| class.to_string())`
[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: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/parser.rs:944:46
[INFO] [stderr]     |
[INFO] [stderr] 944 |                         if int_lit.value() > <u32>::max_value() as u64 {
[INFO] [stderr]     |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(<u32>::max_value())`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: use of `or` followed by a function call
[INFO] [stderr]     --> src/parser.rs:1043:14
[INFO] [stderr]      |
[INFO] [stderr] 1043 |             .or(opts.module())
[INFO] [stderr]      |              ^^^^^^^^^^^^^^^^^ help: try this: `or_else(|| opts.module())`
[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: use of `or` followed by a function call
[INFO] [stderr]     --> src/parser.rs:1045:53
[INFO] [stderr]      |
[INFO] [stderr] 1045 |         let js_namespace = item_opts.js_namespace().or(opts.js_namespace()).cloned();
[INFO] [stderr]      |                                                     ^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_else(|| opts.js_namespace())`
[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: length comparison to zero
[INFO] [stderr]     --> src/parser.rs:1095:36
[INFO] [stderr]      |
[INFO] [stderr] 1095 |         syn::Type::Tuple(ref t) if t.elems.len() == 0 => return Ok(None),
[INFO] [stderr]      |                                    ^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `t.elems.is_empty()`
[INFO] [stderr]      |
[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 creates an owned instance just for comparison
[INFO] [stderr]     --> src/parser.rs:1108:47
[INFO] [stderr]      |
[INFO] [stderr] 1108 |             if a.path.segments.iter().any(|s| s.ident.to_string() == "doc") {
[INFO] [stderr]      |                                               ^^^^^^^^^^^^^^^^^^^ help: try: `*s.ident`
[INFO] [stderr]      |
[INFO] [stderr]      = note: #[warn(clippy::cmp_owned)] on by default
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/parser.rs:291:12
[INFO] [stderr]     |
[INFO] [stderr] 291 |         if self.generics.params.len() > 0 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!self.generics.params.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: use of `unwrap_or` followed by a function call
[INFO] [stderr]    --> src/parser.rs:302:14
[INFO] [stderr]     |
[INFO] [stderr] 302 |             .unwrap_or(self.ident.to_string());
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| self.ident.to_string())`
[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: length comparison to zero
[INFO] [stderr]    --> src/parser.rs:625:8
[INFO] [stderr]     |
[INFO] [stderr] 625 |     if decl.generics.params.len() > 0 {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!decl.generics.params.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]    --> src/parser.rs:692:18
[INFO] [stderr]     |
[INFO] [stderr] 692 |                 .unwrap_or(decl_name.to_string()),
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| decl_name.to_string())`
[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: use of `unwrap_or` followed by a function call
[INFO] [stderr]    --> src/parser.rs:693:45
[INFO] [stderr]     |
[INFO] [stderr] 693 |             name_span: js_name.map(|s| s.1).unwrap_or(decl_name.span()),
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| decl_name.span())`
[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 seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/parser.rs:726:17
[INFO] [stderr]     |
[INFO] [stderr] 726 | /                 match no_mangle {
[INFO] [stderr] 727 | |                     Some((i, _)) => {
[INFO] [stderr] 728 | |                         f.attrs.remove(i);
[INFO] [stderr] 729 | |                     }
[INFO] [stderr] 730 | |                     _ => {}
[INFO] [stderr] 731 | |                 }
[INFO] [stderr]     | |_________________^
[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] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 726 |                 if let Some((i, _)) = no_mangle {
[INFO] [stderr] 727 |     f.attrs.remove(i);
[INFO] [stderr] 728 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/parser.rs:736:24
[INFO] [stderr]     |
[INFO] [stderr] 736 |                     if f.decl.generics.params.len() > 0 {
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!f.decl.generics.params.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/parser.rs:739:24
[INFO] [stderr]     |
[INFO] [stderr] 739 |                     if f.decl.inputs.len() > 0 {
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!f.decl.inputs.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/parser.rs:815:12
[INFO] [stderr]     |
[INFO] [stderr] 815 |         if self.generics.params.len() > 0 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!self.generics.params.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]    --> src/parser.rs:903:14
[INFO] [stderr]     |
[INFO] [stderr] 903 |             .unwrap_or(class.to_string());
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| class.to_string())`
[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: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/parser.rs:944:46
[INFO] [stderr]     |
[INFO] [stderr] 944 |                         if int_lit.value() > <u32>::max_value() as u64 {
[INFO] [stderr]     |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(<u32>::max_value())`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: use of `or` followed by a function call
[INFO] [stderr]     --> src/parser.rs:1043:14
[INFO] [stderr]      |
[INFO] [stderr] 1043 |             .or(opts.module())
[INFO] [stderr]      |              ^^^^^^^^^^^^^^^^^ help: try this: `or_else(|| opts.module())`
[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: use of `or` followed by a function call
[INFO] [stderr]     --> src/parser.rs:1045:53
[INFO] [stderr]      |
[INFO] [stderr] 1045 |         let js_namespace = item_opts.js_namespace().or(opts.js_namespace()).cloned();
[INFO] [stderr]      |                                                     ^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_else(|| opts.js_namespace())`
[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: length comparison to zero
[INFO] [stderr]     --> src/parser.rs:1095:36
[INFO] [stderr]      |
[INFO] [stderr] 1095 |         syn::Type::Tuple(ref t) if t.elems.len() == 0 => return Ok(None),
[INFO] [stderr]      |                                    ^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `t.elems.is_empty()`
[INFO] [stderr]      |
[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 creates an owned instance just for comparison
[INFO] [stderr]     --> src/parser.rs:1108:47
[INFO] [stderr]      |
[INFO] [stderr] 1108 |             if a.path.segments.iter().any(|s| s.ident.to_string() == "doc") {
[INFO] [stderr]      |                                               ^^^^^^^^^^^^^^^^^^^ help: try: `*s.ident`
[INFO] [stderr]      |
[INFO] [stderr]      = note: #[warn(clippy::cmp_owned)] on by default
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.34s
[INFO] running `"docker" "inspect" "41bcb083a30fd254bd1681ea32aadb9056d460cde237efde456544fc37dcca90"`
[INFO] running `"docker" "rm" "-f" "41bcb083a30fd254bd1681ea32aadb9056d460cde237efde456544fc37dcca90"`
[INFO] [stdout] 41bcb083a30fd254bd1681ea32aadb9056d460cde237efde456544fc37dcca90