[INFO] fetching crate fi-night 0.1.6...
[INFO] linting fi-night-0.1.6 against nightly for clippy-nonminimal_bool-denied
[INFO] extracting crate fi-night 0.1.6 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate fi-night 0.1.6
[INFO] finished tweaking crates.io crate fi-night 0.1.6
[INFO] tweaked toml for crates.io crate fi-night 0.1.6 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fi-night 0.1.6 on toolchain nightly
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 10 packages to latest compatible versions
[INFO] [stderr]       Adding convert_case v0.4.0 (available: v0.11.0)
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.117)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4549e24c929da872a85af72fda0e2d83c5287a9ba0afe4a67dd8118c697102cb
[INFO] running `Command { std: "docker" "start" "-a" "4549e24c929da872a85af72fda0e2d83c5287a9ba0afe4a67dd8118c697102cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4549e24c929da872a85af72fda0e2d83c5287a9ba0afe4a67dd8118c697102cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4549e24c929da872a85af72fda0e2d83c5287a9ba0afe4a67dd8118c697102cb", kill_on_drop: false }`
[INFO] [stdout] 4549e24c929da872a85af72fda0e2d83c5287a9ba0afe4a67dd8118c697102cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "clippy" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2e72191e69351f6357299e611aa98436f812c3bfe4081208a19d844460a7650
[INFO] running `Command { std: "docker" "start" "-a" "f2e72191e69351f6357299e611aa98436f812c3bfe4081208a19d844460a7650", kill_on_drop: false }`
[INFO] [stderr]     Checking regex-syntax v0.8.10
[INFO] [stderr]     Checking aho-corasick v1.1.4
[INFO] [stderr]     Checking convert_case v0.4.0
[INFO] [stderr]     Checking syn v1.0.109
[INFO] [stderr]     Checking regex-automata v0.4.14
[INFO] [stderr]     Checking regex v1.12.3
[INFO] [stderr]     Checking fi-night v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the `str @ _` pattern can be written as just `str`
[INFO] [stdout]    --> src/lib.rs:957:9
[INFO] [stdout]     |
[INFO] [stdout] 957 |         str @ _ => panic!("Unrecognized stack operation parsed: {}", str),
[INFO] [stdout]     |         ^^^^^^^ help: try: `str`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern
[INFO] [stdout]     = note: `#[warn(clippy::redundant_pattern)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `str @ _` pattern can be written as just `str`
[INFO] [stdout]    --> src/lib.rs:957:9
[INFO] [stdout]     |
[INFO] [stdout] 957 |         str @ _ => panic!("Unrecognized stack operation parsed: {}", str),
[INFO] [stdout]     |         ^^^^^^^ help: try: `str`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern
[INFO] [stdout]     = note: `#[warn(clippy::redundant_pattern)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ChainIterItemDecl` is never constructed
[INFO] [stdout]     --> src/lib.rs:1320:8
[INFO] [stdout]      |
[INFO] [stdout] 1320 | struct ChainIterItemDecl(Ident, Ident, Ident, Ident);
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ImplEnumDisplay` is never constructed
[INFO] [stdout]     --> src/lib.rs:1489:8
[INFO] [stdout]      |
[INFO] [stdout] 1489 | struct ImplEnumDisplay {
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ImplEnumVariantDisplay` is never constructed
[INFO] [stdout]     --> src/lib.rs:1506:8
[INFO] [stdout]      |
[INFO] [stdout] 1506 | struct ImplEnumVariantDisplay(Ident);
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you are using an explicit closure for cloning elements
[INFO] [stdout]    --> src/lib.rs:396:36
[INFO] [stdout]     |
[INFO] [stdout] 396 |     let state_variants: Vec<Ident> = fsm_parsed.state_enum_tokens
[INFO] [stdout]     |  ____________________________________^
[INFO] [stdout] 397 | |     .iter()
[INFO] [stdout] 398 | |     .map(|item| item.clone())
[INFO] [stdout]     | |_____________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stdout]     = note: `#[warn(clippy::map_clone)]` on by default
[INFO] [stdout] help: consider calling the dedicated `cloned` method
[INFO] [stdout]     |
[INFO] [stdout] 396 ~   let state_variants: Vec<Ident> = fsm_parsed.state_enum_tokens
[INFO] [stdout] 397 +     .iter().cloned()
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `proc_macro2::TokenStream`
[INFO] [stdout]    --> src/lib.rs:410:20
[INFO] [stdout]     |
[INFO] [stdout] 410 |   let mut output = TokenStream::from(state_enum_tokens.into_token_stream());
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `TokenStream::from()`: `state_enum_tokens.into_token_stream()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion
[INFO] [stdout]     = note: `#[warn(clippy::useless_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `proc_macro2::TokenStream`
[INFO] [stdout]    --> src/lib.rs:425:18
[INFO] [stdout]     |
[INFO] [stdout] 425 |   output.extend( TokenStream::from(signal_enum_tokens.into_token_stream()) );
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `TokenStream::from()`: `signal_enum_tokens.into_token_stream()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `proc_macro2::TokenStream`
[INFO] [stdout]    --> src/lib.rs:431:18
[INFO] [stdout]     |
[INFO] [stdout] 431 |   output.extend( TokenStream::from(quoted.into_token_stream()) );
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `TokenStream::from()`: `quoted.into_token_stream()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `proc_macro2::TokenStream`
[INFO] [stdout]    --> src/lib.rs:467:20
[INFO] [stdout]     |
[INFO] [stdout] 467 |   let mut input1 = TokenStream::from((Ident::new("_", Span::call_site())).into_token_stream());
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `TokenStream::from()`: `(Ident::new("_", Span::call_site())).into_token_stream()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `proc_macro2::TokenStream`
[INFO] [stdout]    --> src/lib.rs:469:17
[INFO] [stdout]     |
[INFO] [stdout] 469 |   input1.extend(TokenStream::from((Ident::new("on", Span::call_site())).into_token_stream()));
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `TokenStream::from()`: `(Ident::new("on", Span::call_site())).into_token_stream()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-canonical implementation of `partial_cmp` on an `Ord` type
[INFO] [stdout]    --> src/lib.rs:551:1
[INFO] [stdout]     |
[INFO] [stdout] 551 | / impl std::cmp::PartialOrd for EnumIdentAcceptingAny {
[INFO] [stdout] 552 | |   fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> {
[INFO] [stdout] 553 | |       match self {
[INFO] [stdout] 554 | |         Self::AnyVariant(_) 
[INFO] [stdout] ...   |
[INFO] [stdout] 560 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#non_canonical_partial_ord_impl
[INFO] [stdout]     = note: `#[warn(clippy::non_canonical_partial_ord_impl)]` on by default
[INFO] [stdout] help: change this to
[INFO] [stdout]     |
[INFO] [stdout] 552 -   fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> {
[INFO] [stdout] 553 -       match self {
[INFO] [stdout] 554 -         Self::AnyVariant(_) 
[INFO] [stdout] 555 -           => if other.is_any() {Some(std::cmp::Ordering::Equal)} else {Some(std::cmp::Ordering::Less)},
[INFO] [stdout] 556 -         Self::SomeVariant(v1) 
[INFO] [stdout] 557 -           => if other.is_any() {Some(std::cmp::Ordering::Greater)} else {v1.partial_cmp(other.unwrap_as_ref())},
[INFO] [stdout] 558 -       }  
[INFO] [stdout] 559 -   }
[INFO] [stdout] 552 +   fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> { Some(self.cmp(other)) }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-canonical implementation of `partial_cmp` on an `Ord` type
[INFO] [stdout]    --> src/lib.rs:611:1
[INFO] [stdout]     |
[INFO] [stdout] 611 | / impl std::cmp::PartialOrd for MatchTransitionEntry {
[INFO] [stdout] 612 | |   fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> {
[INFO] [stdout] 613 | |     let ord_by_from_state = self.from_state.cmp(&other.from_state);
[INFO] [stdout] 614 | |     if ord_by_from_state != std::cmp::Ordering::Equal { return Some(ord_by_from_state.reverse()); }
[INFO] [stdout] ...   |
[INFO] [stdout] 620 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#non_canonical_partial_ord_impl
[INFO] [stdout] help: change this to
[INFO] [stdout]     |
[INFO] [stdout] 612 -   fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> {
[INFO] [stdout] 613 -     let ord_by_from_state = self.from_state.cmp(&other.from_state);
[INFO] [stdout] 614 -     if ord_by_from_state != std::cmp::Ordering::Equal { return Some(ord_by_from_state.reverse()); }
[INFO] [stdout] 615 -     let ord_by_signal = self.signal.cmp(&other.signal);
[INFO] [stdout] 616 -     if ord_by_signal != std::cmp::Ordering::Equal { return Some(ord_by_signal.reverse()); }
[INFO] [stdout] 617 -     self.stack_expr.partial_cmp(&other.stack_expr).map(|ord| ord.reverse())
[INFO] [stdout] 618 - //    if ord_by_stack_expr != std::cmp::Ordering::Equal { return Some(ord_by_stack_expr); }
[INFO] [stdout] 619 -   }
[INFO] [stdout] 612 +   fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> { Some(self.cmp(other)) }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant pattern matching, consider using `is_some()`
[INFO] [stdout]    --> src/lib.rs:673:14
[INFO] [stdout]     |
[INFO] [stdout] 673 |       if let Some(_) = self.input {
[INFO] [stdout]     |       -------^^^^^^^------------- help: try: `if self.input.is_some()`
[INFO] [stdout]     |
[INFO] [stdout]     = note: this will change drop order of the result, as well as all temporaries
[INFO] [stdout]     = note: add `#[allow(clippy::redundant_pattern_matching)]` if this is important
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stdout]     = note: `#[warn(clippy::redundant_pattern_matching)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `to_owned` call clones the `Cow<'_, str>` itself and does not cause its contents to become owned
[INFO] [stdout]    --> src/lib.rs:715:30
[INFO] [stdout]     |
[INFO] [stdout] 715 |         format!("popped_{}", re.replace_all(str, "_").to_owned())
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_to_owned
[INFO] [stdout]     = note: `#[warn(clippy::suspicious_to_owned)]` on by default
[INFO] [stdout] help: depending on intent, either make the `Cow` an `Owned` variant
[INFO] [stdout]     |
[INFO] [stdout] 715 |         format!("popped_{}", re.replace_all(str, "_").into_owned())
[INFO] [stdout]     |                                                       ++
[INFO] [stdout] help: or clone the `Cow` itself
[INFO] [stdout]     |
[INFO] [stdout] 715 -         format!("popped_{}", re.replace_all(str, "_").to_owned())
[INFO] [stdout] 715 +         format!("popped_{}", re.replace_all(str, "_").clone())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `to_owned` call clones the `Cow<'_, str>` itself and does not cause its contents to become owned
[INFO] [stdout]    --> src/lib.rs:721:35
[INFO] [stdout]     |
[INFO] [stdout] 721 |         format!("popped_last_{}", re.replace_all(str, "_").to_owned())
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_to_owned
[INFO] [stdout] help: depending on intent, either make the `Cow` an `Owned` variant
[INFO] [stdout]     |
[INFO] [stdout] 721 |         format!("popped_last_{}", re.replace_all(str, "_").into_owned())
[INFO] [stdout]     |                                                            ++
[INFO] [stdout] help: or clone the `Cow` itself
[INFO] [stdout]     |
[INFO] [stdout] 721 -         format!("popped_last_{}", re.replace_all(str, "_").to_owned())
[INFO] [stdout] 721 +         format!("popped_last_{}", re.replace_all(str, "_").clone())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `to_owned` call clones the `Cow<'_, str>` itself and does not cause its contents to become owned
[INFO] [stdout]    --> src/lib.rs:727:28
[INFO] [stdout]     |
[INFO] [stdout] 727 |         format!("peek_{}", re.replace_all(str, "_").to_owned())
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_to_owned
[INFO] [stdout] help: depending on intent, either make the `Cow` an `Owned` variant
[INFO] [stdout]     |
[INFO] [stdout] 727 |         format!("peek_{}", re.replace_all(str, "_").into_owned())
[INFO] [stdout]     |                                                     ++
[INFO] [stdout] help: or clone the `Cow` itself
[INFO] [stdout]     |
[INFO] [stdout] 727 -         format!("peek_{}", re.replace_all(str, "_").to_owned())
[INFO] [stdout] 727 +         format!("peek_{}", re.replace_all(str, "_").clone())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `Option.and_then(|x| Some(y))`, which is more succinctly expressed as `map(|x| y)`
[INFO] [stdout]    --> src/lib.rs:790:28
[INFO] [stdout]     |
[INFO] [stdout] 790 |             stack_sym_type = args_iter.next().and_then(|arg| match arg.into_value() {
[INFO] [stdout]     |  ____________________________^
[INFO] [stdout] 791 | |               GenericArgument::Type(t) => Some(t),
[INFO] [stdout] 792 | |               _ => panic!("Type argument expected for StackSymbolItem"),
[INFO] [stdout] 793 | |             }
[INFO] [stdout] 794 | |           );
[INFO] [stdout]     | |___________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bind_instead_of_map
[INFO] [stdout]     = note: `#[warn(clippy::bind_instead_of_map)]` on by default
[INFO] [stdout] help: use `map` instead
[INFO] [stdout]     |
[INFO] [stdout] 790 ~           stack_sym_type = args_iter.next().map(|arg| match arg.into_value() {
[INFO] [stdout] 791 ~               GenericArgument::Type(t) => t,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `to_string` applied to a type that implements `Display` in `format!` args
[INFO] [stdout]    --> src/lib.rs:797:64
[INFO] [stdout]     |
[INFO] [stdout] 797 |         let state_enum_ident = Ident::new(&format!("{}{}", name.to_string(), "States"), Span::call_site());
[INFO] [stdout]     |                                                                ^^^^^^^^^^^^ help: remove this
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#to_string_in_format_args
[INFO] [stdout]     = note: `#[warn(clippy::to_string_in_format_args)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `to_string` applied to a type that implements `Display` in `format!` args
[INFO] [stdout]    --> src/lib.rs:798:65
[INFO] [stdout]     |
[INFO] [stdout] 798 |         let signal_enum_ident = Ident::new(&format!("{}{}", name.to_string(), "Signals"), Span::call_site());
[INFO] [stdout]     |                                                                 ^^^^^^^^^^^^ help: remove this
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#to_string_in_format_args
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/lib.rs:837:28
[INFO] [stdout]     |
[INFO] [stdout] 837 |                         if !input_type.is_none() {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^ help: try: `input_type.is_some()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]     = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> src/lib.rs:879:12
[INFO] [stdout]     |
[INFO] [stdout] 879 |         if state_enum_tokens.len() == 0 {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `state_enum_tokens.is_empty()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]     = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: all variants have the same prefix: `Chain`
[INFO] [stdout]    --> src/lib.rs:927:1
[INFO] [stdout]     |
[INFO] [stdout] 927 | / enum TransitionSignatureKind {
[INFO] [stdout] 928 | |   ChainJoint,
[INFO] [stdout] 929 | |   ChainEnd,
[INFO] [stdout] 930 | |   ChainEndConditional,
[INFO] [stdout] 931 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = help: remove the prefixes and use full paths to the variants instead of glob imports
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#enum_variant_names
[INFO] [stdout]     = note: `#[warn(clippy::enum_variant_names)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]     --> src/lib.rs:1059:5
[INFO] [stdout]      |
[INFO] [stdout] 1059 | /     return Ok(Self {
[INFO] [stdout] 1060 | |       signature_kind: TransitionSignatureKind::ChainJoint,
[INFO] [stdout] 1061 | |       from_state,
[INFO] [stdout] 1062 | |       signals,
[INFO] [stdout] 1063 | |       stack_expr: Self::parse_pop_token(&input).unwrap(),
[INFO] [stdout] 1064 | |     });
[INFO] [stdout]      | |______^
[INFO] [stdout]      |
[INFO] [stdout]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]      = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]      |
[INFO] [stdout] 1059 ~     Ok(Self {
[INFO] [stdout] 1060 +       signature_kind: TransitionSignatureKind::ChainJoint,
[INFO] [stdout] 1061 +       from_state,
[INFO] [stdout] 1062 +       signals,
[INFO] [stdout] 1063 +       stack_expr: Self::parse_pop_token(&input).unwrap(),
[INFO] [stdout] 1064 ~     })
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant pattern matching, consider using `is_ok()`
[INFO] [stdout]    --> src/lib.rs:968:12
[INFO] [stdout]     |
[INFO] [stdout] 968 |     if let Ok(_) = input.parse::<Token![?]>() {
[INFO] [stdout]     |     -------^^^^^----------------------------- help: try: `if input.parse::<Token![?]>().is_ok()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `proc_macro2::TokenStream`
[INFO] [stdout]     --> src/lib.rs:1096:3
[INFO] [stdout]      |
[INFO] [stdout] 1096 |   (TokenStream::from(tr_quoted.into_token_stream())).into()
[INFO] [stdout]      |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `TokenStream::from()`: `tr_quoted.into_token_stream()`
[INFO] [stdout]      |
[INFO] [stdout]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `proc_macro2::TokenStream`
[INFO] [stdout]     --> src/lib.rs:1159:3
[INFO] [stdout]      |
[INFO] [stdout] 1159 |   (TokenStream::from(tr_quoted.into_token_stream())).into()
[INFO] [stdout]      |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `TokenStream::from()`: `tr_quoted.into_token_stream()`
[INFO] [stdout]      |
[INFO] [stdout]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `to_string` applied to a type that implements `Display` in `format!` args
[INFO] [stdout]     --> src/lib.rs:1164:31
[INFO] [stdout]      |
[INFO] [stdout] 1164 |     &format!("{}{}", fsm_ident.to_string(), "Trait"),
[INFO] [stdout]      |                               ^^^^^^^^^^^^ help: remove this
[INFO] [stdout]      |
[INFO] [stdout]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#to_string_in_format_args
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]     --> src/lib.rs:1177:54
[INFO] [stdout]      |
[INFO] [stdout] 1177 |   let iter_item_ident = ChainIterItem::name_from_fsm(&fsm_ident);
[INFO] [stdout]      |                                                      ^^^^^^^^^^ help: change this to: `fsm_ident`
[INFO] [stdout]      |
[INFO] [stdout]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout]      = note: `#[warn(clippy::needless_borrow)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ChainIterItemDecl` is never constructed
[INFO] [stdout]     --> src/lib.rs:1320:8
[INFO] [stdout]      |
[INFO] [stdout] 1320 | struct ChainIterItemDecl(Ident, Ident, Ident, Ident);
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ImplEnumDisplay` is never constructed
[INFO] [stdout]     --> src/lib.rs:1489:8
[INFO] [stdout]      |
[INFO] [stdout] 1489 | struct ImplEnumDisplay {
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ImplEnumVariantDisplay` is never constructed
[INFO] [stdout]     --> src/lib.rs:1506:8
[INFO] [stdout]      |
[INFO] [stdout] 1506 | struct ImplEnumVariantDisplay(Ident);
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `proc_macro2::TokenStream`
[INFO] [stdout]     --> src/lib.rs:1265:16
[INFO] [stdout]      |
[INFO] [stdout] 1265 |   let output = TokenStream::from(quoted.into_token_stream());
[INFO] [stdout]      |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `TokenStream::from()`: `quoted.into_token_stream()`
[INFO] [stdout]      |
[INFO] [stdout]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you are using an explicit closure for cloning elements
[INFO] [stdout]    --> src/lib.rs:396:36
[INFO] [stdout]     |
[INFO] [stdout] 396 |     let state_variants: Vec<Ident> = fsm_parsed.state_enum_tokens
[INFO] [stdout]     |  ____________________________________^
[INFO] [stdout] 397 | |     .iter()
[INFO] [stdout] 398 | |     .map(|item| item.clone())
[INFO] [stdout]     | |_____________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stdout]     = note: `#[warn(clippy::map_clone)]` on by default
[INFO] [stdout] help: consider calling the dedicated `cloned` method
[INFO] [stdout]     |
[INFO] [stdout] 396 ~   let state_variants: Vec<Ident> = fsm_parsed.state_enum_tokens
[INFO] [stdout] 397 +     .iter().cloned()
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `proc_macro2::TokenStream`
[INFO] [stdout]    --> src/lib.rs:410:20
[INFO] [stdout]     |
[INFO] [stdout] 410 |   let mut output = TokenStream::from(state_enum_tokens.into_token_stream());
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `TokenStream::from()`: `state_enum_tokens.into_token_stream()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion
[INFO] [stdout]     = note: `#[warn(clippy::useless_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `proc_macro2::TokenStream`
[INFO] [stdout]    --> src/lib.rs:425:18
[INFO] [stdout]     |
[INFO] [stdout] 425 |   output.extend( TokenStream::from(signal_enum_tokens.into_token_stream()) );
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `TokenStream::from()`: `signal_enum_tokens.into_token_stream()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `proc_macro2::TokenStream`
[INFO] [stdout]    --> src/lib.rs:431:18
[INFO] [stdout]     |
[INFO] [stdout] 431 |   output.extend( TokenStream::from(quoted.into_token_stream()) );
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `TokenStream::from()`: `quoted.into_token_stream()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `proc_macro2::TokenStream`
[INFO] [stdout]    --> src/lib.rs:467:20
[INFO] [stdout]     |
[INFO] [stdout] 467 |   let mut input1 = TokenStream::from((Ident::new("_", Span::call_site())).into_token_stream());
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `TokenStream::from()`: `(Ident::new("_", Span::call_site())).into_token_stream()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `proc_macro2::TokenStream`
[INFO] [stdout]    --> src/lib.rs:469:17
[INFO] [stdout]     |
[INFO] [stdout] 469 |   input1.extend(TokenStream::from((Ident::new("on", Span::call_site())).into_token_stream()));
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `TokenStream::from()`: `(Ident::new("on", Span::call_site())).into_token_stream()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-canonical implementation of `partial_cmp` on an `Ord` type
[INFO] [stdout]    --> src/lib.rs:551:1
[INFO] [stdout]     |
[INFO] [stdout] 551 | / impl std::cmp::PartialOrd for EnumIdentAcceptingAny {
[INFO] [stdout] 552 | |   fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> {
[INFO] [stdout] 553 | |       match self {
[INFO] [stdout] 554 | |         Self::AnyVariant(_) 
[INFO] [stdout] ...   |
[INFO] [stdout] 560 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#non_canonical_partial_ord_impl
[INFO] [stdout]     = note: `#[warn(clippy::non_canonical_partial_ord_impl)]` on by default
[INFO] [stdout] help: change this to
[INFO] [stdout]     |
[INFO] [stdout] 552 -   fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> {
[INFO] [stdout] 553 -       match self {
[INFO] [stdout] 554 -         Self::AnyVariant(_) 
[INFO] [stdout] 555 -           => if other.is_any() {Some(std::cmp::Ordering::Equal)} else {Some(std::cmp::Ordering::Less)},
[INFO] [stdout] 556 -         Self::SomeVariant(v1) 
[INFO] [stdout] 557 -           => if other.is_any() {Some(std::cmp::Ordering::Greater)} else {v1.partial_cmp(other.unwrap_as_ref())},
[INFO] [stdout] 558 -       }  
[INFO] [stdout] 559 -   }
[INFO] [stdout] 552 +   fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> { Some(self.cmp(other)) }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-canonical implementation of `partial_cmp` on an `Ord` type
[INFO] [stdout]    --> src/lib.rs:611:1
[INFO] [stdout]     |
[INFO] [stdout] 611 | / impl std::cmp::PartialOrd for MatchTransitionEntry {
[INFO] [stdout] 612 | |   fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> {
[INFO] [stdout] 613 | |     let ord_by_from_state = self.from_state.cmp(&other.from_state);
[INFO] [stdout] 614 | |     if ord_by_from_state != std::cmp::Ordering::Equal { return Some(ord_by_from_state.reverse()); }
[INFO] [stdout] ...   |
[INFO] [stdout] 620 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#non_canonical_partial_ord_impl
[INFO] [stdout] help: change this to
[INFO] [stdout]     |
[INFO] [stdout] 612 -   fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> {
[INFO] [stdout] 613 -     let ord_by_from_state = self.from_state.cmp(&other.from_state);
[INFO] [stdout] 614 -     if ord_by_from_state != std::cmp::Ordering::Equal { return Some(ord_by_from_state.reverse()); }
[INFO] [stdout] 615 -     let ord_by_signal = self.signal.cmp(&other.signal);
[INFO] [stdout] 616 -     if ord_by_signal != std::cmp::Ordering::Equal { return Some(ord_by_signal.reverse()); }
[INFO] [stdout] 617 -     self.stack_expr.partial_cmp(&other.stack_expr).map(|ord| ord.reverse())
[INFO] [stdout] 618 - //    if ord_by_stack_expr != std::cmp::Ordering::Equal { return Some(ord_by_stack_expr); }
[INFO] [stdout] 619 -   }
[INFO] [stdout] 612 +   fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> { Some(self.cmp(other)) }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant pattern matching, consider using `is_some()`
[INFO] [stdout]    --> src/lib.rs:673:14
[INFO] [stdout]     |
[INFO] [stdout] 673 |       if let Some(_) = self.input {
[INFO] [stdout]     |       -------^^^^^^^------------- help: try: `if self.input.is_some()`
[INFO] [stdout]     |
[INFO] [stdout]     = note: this will change drop order of the result, as well as all temporaries
[INFO] [stdout]     = note: add `#[allow(clippy::redundant_pattern_matching)]` if this is important
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stdout]     = note: `#[warn(clippy::redundant_pattern_matching)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `to_owned` call clones the `Cow<'_, str>` itself and does not cause its contents to become owned
[INFO] [stdout]    --> src/lib.rs:715:30
[INFO] [stdout]     |
[INFO] [stdout] 715 |         format!("popped_{}", re.replace_all(str, "_").to_owned())
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_to_owned
[INFO] [stdout]     = note: `#[warn(clippy::suspicious_to_owned)]` on by default
[INFO] [stdout] help: depending on intent, either make the `Cow` an `Owned` variant
[INFO] [stdout]     |
[INFO] [stdout] 715 |         format!("popped_{}", re.replace_all(str, "_").into_owned())
[INFO] [stdout]     |                                                       ++
[INFO] [stdout] help: or clone the `Cow` itself
[INFO] [stdout]     |
[INFO] [stdout] 715 -         format!("popped_{}", re.replace_all(str, "_").to_owned())
[INFO] [stdout] 715 +         format!("popped_{}", re.replace_all(str, "_").clone())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `to_owned` call clones the `Cow<'_, str>` itself and does not cause its contents to become owned
[INFO] [stdout]    --> src/lib.rs:721:35
[INFO] [stdout]     |
[INFO] [stdout] 721 |         format!("popped_last_{}", re.replace_all(str, "_").to_owned())
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_to_owned
[INFO] [stdout] help: depending on intent, either make the `Cow` an `Owned` variant
[INFO] [stdout]     |
[INFO] [stdout] 721 |         format!("popped_last_{}", re.replace_all(str, "_").into_owned())
[INFO] [stdout]     |                                                            ++
[INFO] [stdout] help: or clone the `Cow` itself
[INFO] [stdout]     |
[INFO] [stdout] 721 -         format!("popped_last_{}", re.replace_all(str, "_").to_owned())
[INFO] [stdout] 721 +         format!("popped_last_{}", re.replace_all(str, "_").clone())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `to_owned` call clones the `Cow<'_, str>` itself and does not cause its contents to become owned
[INFO] [stdout]    --> src/lib.rs:727:28
[INFO] [stdout]     |
[INFO] [stdout] 727 |         format!("peek_{}", re.replace_all(str, "_").to_owned())
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_to_owned
[INFO] [stdout] help: depending on intent, either make the `Cow` an `Owned` variant
[INFO] [stdout]     |
[INFO] [stdout] 727 |         format!("peek_{}", re.replace_all(str, "_").into_owned())
[INFO] [stdout]     |                                                     ++
[INFO] [stdout] help: or clone the `Cow` itself
[INFO] [stdout]     |
[INFO] [stdout] 727 -         format!("peek_{}", re.replace_all(str, "_").to_owned())
[INFO] [stdout] 727 +         format!("peek_{}", re.replace_all(str, "_").clone())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `Option.and_then(|x| Some(y))`, which is more succinctly expressed as `map(|x| y)`
[INFO] [stdout]    --> src/lib.rs:790:28
[INFO] [stdout]     |
[INFO] [stdout] 790 |             stack_sym_type = args_iter.next().and_then(|arg| match arg.into_value() {
[INFO] [stdout]     |  ____________________________^
[INFO] [stdout] 791 | |               GenericArgument::Type(t) => Some(t),
[INFO] [stdout] 792 | |               _ => panic!("Type argument expected for StackSymbolItem"),
[INFO] [stdout] 793 | |             }
[INFO] [stdout] 794 | |           );
[INFO] [stdout]     | |___________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bind_instead_of_map
[INFO] [stdout]     = note: `#[warn(clippy::bind_instead_of_map)]` on by default
[INFO] [stdout] help: use `map` instead
[INFO] [stdout]     |
[INFO] [stdout] 790 ~           stack_sym_type = args_iter.next().map(|arg| match arg.into_value() {
[INFO] [stdout] 791 ~               GenericArgument::Type(t) => t,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `to_string` applied to a type that implements `Display` in `format!` args
[INFO] [stdout]    --> src/lib.rs:797:64
[INFO] [stdout]     |
[INFO] [stdout] 797 |         let state_enum_ident = Ident::new(&format!("{}{}", name.to_string(), "States"), Span::call_site());
[INFO] [stdout]     |                                                                ^^^^^^^^^^^^ help: remove this
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#to_string_in_format_args
[INFO] [stdout]     = note: `#[warn(clippy::to_string_in_format_args)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `to_string` applied to a type that implements `Display` in `format!` args
[INFO] [stdout]    --> src/lib.rs:798:65
[INFO] [stdout]     |
[INFO] [stdout] 798 |         let signal_enum_ident = Ident::new(&format!("{}{}", name.to_string(), "Signals"), Span::call_site());
[INFO] [stdout]     |                                                                 ^^^^^^^^^^^^ help: remove this
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#to_string_in_format_args
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/lib.rs:837:28
[INFO] [stdout]     |
[INFO] [stdout] 837 |                         if !input_type.is_none() {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^ help: try: `input_type.is_some()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]     = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> src/lib.rs:879:12
[INFO] [stdout]     |
[INFO] [stdout] 879 |         if state_enum_tokens.len() == 0 {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `state_enum_tokens.is_empty()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]     = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: all variants have the same prefix: `Chain`
[INFO] [stdout]    --> src/lib.rs:927:1
[INFO] [stdout]     |
[INFO] [stdout] 927 | / enum TransitionSignatureKind {
[INFO] [stdout] 928 | |   ChainJoint,
[INFO] [stdout] 929 | |   ChainEnd,
[INFO] [stdout] 930 | |   ChainEndConditional,
[INFO] [stdout] 931 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = help: remove the prefixes and use full paths to the variants instead of glob imports
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#enum_variant_names
[INFO] [stdout]     = note: `#[warn(clippy::enum_variant_names)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]     --> src/lib.rs:1059:5
[INFO] [stdout]      |
[INFO] [stdout] 1059 | /     return Ok(Self {
[INFO] [stdout] 1060 | |       signature_kind: TransitionSignatureKind::ChainJoint,
[INFO] [stdout] 1061 | |       from_state,
[INFO] [stdout] 1062 | |       signals,
[INFO] [stdout] 1063 | |       stack_expr: Self::parse_pop_token(&input).unwrap(),
[INFO] [stdout] 1064 | |     });
[INFO] [stdout]      | |______^
[INFO] [stdout]      |
[INFO] [stdout]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]      = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]      |
[INFO] [stdout] 1059 ~     Ok(Self {
[INFO] [stdout] 1060 +       signature_kind: TransitionSignatureKind::ChainJoint,
[INFO] [stdout] 1061 +       from_state,
[INFO] [stdout] 1062 +       signals,
[INFO] [stdout] 1063 +       stack_expr: Self::parse_pop_token(&input).unwrap(),
[INFO] [stdout] 1064 ~     })
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant pattern matching, consider using `is_ok()`
[INFO] [stdout]    --> src/lib.rs:968:12
[INFO] [stdout]     |
[INFO] [stdout] 968 |     if let Ok(_) = input.parse::<Token![?]>() {
[INFO] [stdout]     |     -------^^^^^----------------------------- help: try: `if input.parse::<Token![?]>().is_ok()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `proc_macro2::TokenStream`
[INFO] [stdout]     --> src/lib.rs:1096:3
[INFO] [stdout]      |
[INFO] [stdout] 1096 |   (TokenStream::from(tr_quoted.into_token_stream())).into()
[INFO] [stdout]      |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `TokenStream::from()`: `tr_quoted.into_token_stream()`
[INFO] [stdout]      |
[INFO] [stdout]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `proc_macro2::TokenStream`
[INFO] [stdout]     --> src/lib.rs:1159:3
[INFO] [stdout]      |
[INFO] [stdout] 1159 |   (TokenStream::from(tr_quoted.into_token_stream())).into()
[INFO] [stdout]      |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `TokenStream::from()`: `tr_quoted.into_token_stream()`
[INFO] [stdout]      |
[INFO] [stdout]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `to_string` applied to a type that implements `Display` in `format!` args
[INFO] [stdout]     --> src/lib.rs:1164:31
[INFO] [stdout]      |
[INFO] [stdout] 1164 |     &format!("{}{}", fsm_ident.to_string(), "Trait"),
[INFO] [stdout]      |                               ^^^^^^^^^^^^ help: remove this
[INFO] [stdout]      |
[INFO] [stdout]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#to_string_in_format_args
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]     --> src/lib.rs:1177:54
[INFO] [stdout]      |
[INFO] [stdout] 1177 |   let iter_item_ident = ChainIterItem::name_from_fsm(&fsm_ident);
[INFO] [stdout]      |                                                      ^^^^^^^^^^ help: change this to: `fsm_ident`
[INFO] [stdout]      |
[INFO] [stdout]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout]      = note: `#[warn(clippy::needless_borrow)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `proc_macro2::TokenStream`
[INFO] [stdout]     --> src/lib.rs:1265:16
[INFO] [stdout]      |
[INFO] [stdout] 1265 |   let output = TokenStream::from(quoted.into_token_stream());
[INFO] [stdout]      |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `TokenStream::from()`: `quoted.into_token_stream()`
[INFO] [stdout]      |
[INFO] [stdout]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.22s
[INFO] running `Command { std: "docker" "inspect" "f2e72191e69351f6357299e611aa98436f812c3bfe4081208a19d844460a7650", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2e72191e69351f6357299e611aa98436f812c3bfe4081208a19d844460a7650", kill_on_drop: false }`
[INFO] [stdout] f2e72191e69351f6357299e611aa98436f812c3bfe4081208a19d844460a7650