[INFO] cloning repository https://github.com/ruby-on-rust/ruby-on-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ruby-on-rust/ruby-on-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fruby-on-rust%2Fruby-on-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fruby-on-rust%2Fruby-on-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 404687f73c7f5046c5999d0ef86487fb0071b71f
[INFO] documenting ruby-on-rust/ruby-on-rust against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fruby-on-rust%2Fruby-on-rust" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ruby-on-rust/ruby-on-rust on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ruby-on-rust/ruby-on-rust
[INFO] finished tweaking git repo https://github.com/ruby-on-rust/ruby-on-rust
[INFO] tweaked toml for git repo https://github.com/ruby-on-rust/ruby-on-rust written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/ruby-on-rust/ruby-on-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded strum_macros v0.10.0
[INFO] [stderr]   Downloaded proc-macro2 v0.4.17
[INFO] [stderr]   Downloaded strum v0.10.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 894b8972795ff43aa0be398d8ae471851b72082683d23a23dc46bc11f7ce559d
[INFO] running `Command { std: "docker" "start" "-a" "894b8972795ff43aa0be398d8ae471851b72082683d23a23dc46bc11f7ce559d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "894b8972795ff43aa0be398d8ae471851b72082683d23a23dc46bc11f7ce559d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "894b8972795ff43aa0be398d8ae471851b72082683d23a23dc46bc11f7ce559d", kill_on_drop: false }`
[INFO] [stdout] 894b8972795ff43aa0be398d8ae471851b72082683d23a23dc46bc11f7ce559d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b3f2015ef9263be060a0a2d522e560df8fc4c1f64ca4a6a81a5ab9d26dc5bf7a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b3f2015ef9263be060a0a2d522e560df8fc4c1f64ca4a6a81a5ab9d26dc5bf7a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.17
[INFO] [stderr]     Checking rand_core v0.3.0
[INFO] [stderr]     Checking strum v0.10.0
[INFO] [stderr]     Checking rand_core v0.2.2
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]     Checking uuid v0.7.1
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling strum_macros v0.10.0
[INFO] [stderr]  Documenting ruby_on_rust v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/lexer/literal.rs:151:26
[INFO] [stdout]     |
[INFO] [stdout] 151 |         let monolithic = ( start_tok.clone() == Token::T_STRING_BEG && ( &str_type == "'" || &str_type == "\"" ) );
[INFO] [stdout]     |                          ^^                                                                                     ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 151 -         let monolithic = ( start_tok.clone() == Token::T_STRING_BEG && ( &str_type == "'" || &str_type == "\"" ) );
[INFO] [stdout] 151 +         let monolithic = start_tok.clone() == Token::T_STRING_BEG && ( &str_type == "'" || &str_type == "\"" );
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/lexer/literal.rs:287:28
[INFO] [stdout]     |
[INFO] [stdout] 287 |         let lookahead = if (lookahead.is_some() && !lookahead.clone().unwrap().is_empty()) { lookahead } else { None };
[INFO] [stdout]     |                            ^                                                             ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 287 -         let lookahead = if (lookahead.is_some() && !lookahead.clone().unwrap().is_empty()) { lookahead } else { None };
[INFO] [stdout] 287 +         let lookahead = if lookahead.is_some() && !lookahead.clone().unwrap().is_empty() { lookahead } else { None };
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/lexer/lexer.rs:705:14
[INFO] [stdout]     |
[INFO] [stdout] 705 | ...                   {tm = p }
[INFO] [stdout]     |                       ^      ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 705 -                                                     {tm = p }
[INFO] [stdout] 705 +                                                     tm = p
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/lexer/lexer.rs:709:14
[INFO] [stdout]     |
[INFO] [stdout] 709 | ...                   {tm = p - 2 }
[INFO] [stdout]     |                       ^          ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 709 -                                                     {tm = p - 2 }
[INFO] [stdout] 709 +                                                     tm = p - 2
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/lexer/lexer.rs:713:14
[INFO] [stdout]     |
[INFO] [stdout] 713 | ...                   {tm = p }
[INFO] [stdout]     |                       ^      ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 713 -                                                     {tm = p }
[INFO] [stdout] 713 +                                                     tm = p
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/lexer/lexer.rs:717:14
[INFO] [stdout]     |
[INFO] [stdout] 717 | ...                   {tm = p - 2 }
[INFO] [stdout]     |                       ^          ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 717 -                                                     {tm = p - 2 }
[INFO] [stdout] 717 +                                                     tm = p - 2
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/lexer/lexer.rs:721:14
[INFO] [stdout]     |
[INFO] [stdout] 721 | ...                   {tm = p - 2 }
[INFO] [stdout]     |                       ^          ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 721 -                                                     {tm = p - 2 }
[INFO] [stdout] 721 +                                                     tm = p - 2
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/lexer/lexer.rs:725:14
[INFO] [stdout]     |
[INFO] [stdout] 725 | ...                   {tm = p - 2 }
[INFO] [stdout]     |                       ^          ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 725 -                                                     {tm = p - 2 }
[INFO] [stdout] 725 +                                                     tm = p - 2
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/lexer/lexer.rs:729:14
[INFO] [stdout]     |
[INFO] [stdout] 729 | ...                   {tm = p - 3 }
[INFO] [stdout]     |                       ^          ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 729 -                                                     {tm = p - 3 }
[INFO] [stdout] 729 +                                                     tm = p - 3
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/lexer/lexer.rs:733:14
[INFO] [stdout]     |
[INFO] [stdout] 733 | ...                   {tm = p - 2 }
[INFO] [stdout]     |                       ^          ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 733 -                                                     {tm = p - 2 }
[INFO] [stdout] 733 +                                                     tm = p - 2
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/lexer/lexer.rs:737:14
[INFO] [stdout]     |
[INFO] [stdout] 737 | ...                   {tm = p - 2 }
[INFO] [stdout]     |                       ^          ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 737 -                                                     {tm = p - 2 }
[INFO] [stdout] 737 +                                                     tm = p - 2
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/lexer/lexer.rs:758:14
[INFO] [stdout]     |
[INFO] [stdout] 758 | ...                   {tm = p }
[INFO] [stdout]     |                       ^      ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 758 -                                                     {tm = p }
[INFO] [stdout] 758 +                                                     tm = p
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/lexer/lexer.rs:762:14
[INFO] [stdout]     |
[INFO] [stdout] 762 | ...                   {tm = p }
[INFO] [stdout]     |                       ^      ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 762 -                                                     {tm = p }
[INFO] [stdout] 762 +                                                     tm = p
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/lexer/lexer.rs:766:14
[INFO] [stdout]     |
[INFO] [stdout] 766 | ...                   {tm = p }
[INFO] [stdout]     |                       ^      ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 766 -                                                     {tm = p }
[INFO] [stdout] 766 +                                                     tm = p
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/lexer/lexer.rs:806:14
[INFO] [stdout]     |
[INFO] [stdout] 806 | ...                   {self.num_suffix_s = p }
[INFO] [stdout]     |                       ^                     ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 806 -                                                     {self.num_suffix_s = p }
[INFO] [stdout] 806 +                                                     self.num_suffix_s = p
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/lexer/lexer.rs:810:14
[INFO] [stdout]     |
[INFO] [stdout] 810 | ...                   {tm = p }
[INFO] [stdout]     |                       ^      ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 810 -                                                     {tm = p }
[INFO] [stdout] 810 +                                                     tm = p
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]     --> src/lexer/lexer.rs:5561:16
[INFO] [stdout]      |
[INFO] [stdout] 5561 | ...                   {p = pe - 3 }
[INFO] [stdout]      |                       ^          ^^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]      |
[INFO] [stdout] 5561 -                                                             {p = pe - 3 }
[INFO] [stdout] 5561 +                                                             p = pe - 3
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]     --> src/parser/parser.rs:7051:13
[INFO] [stdout]      |
[INFO] [stdout] 7051 | let __ = if ( _2.is_empty() && _1.len() == 1 ) {
[INFO] [stdout]      |             ^^                              ^^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 7051 - let __ = if ( _2.is_empty() && _1.len() == 1 ) {
[INFO] [stdout] 7051 + let __ = if _2.is_empty() && _1.len() == 1 {
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.82s
[INFO] running `Command { std: "docker" "inspect" "b3f2015ef9263be060a0a2d522e560df8fc4c1f64ca4a6a81a5ab9d26dc5bf7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3f2015ef9263be060a0a2d522e560df8fc4c1f64ca4a6a81a5ab9d26dc5bf7a", kill_on_drop: false }`
[INFO] [stdout] b3f2015ef9263be060a0a2d522e560df8fc4c1f64ca4a6a81a5ab9d26dc5bf7a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-e" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c0e8b4ec87faec5a9e921c5ee9adb3f86f144e182375ee60317f50d0c72c37c9
[INFO] running `Command { std: "docker" "start" "-a" "c0e8b4ec87faec5a9e921c5ee9adb3f86f144e182375ee60317f50d0c72c37c9", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]    Compiling proc-macro2 v0.4.17
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking rand_core v0.3.0
[INFO] [stderr]    Compiling regex v1.0.4
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]     Checking utf8-ranges v1.0.1
[INFO] [stderr]     Checking strum v0.10.0
[INFO] [stderr]     Checking maplit v1.0.1
[INFO] [stderr]     Checking regex-syntax v0.6.2
[INFO] [stderr]     Checking rand_core v0.2.2
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]     Checking memchr v2.0.2
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking aho-corasick v0.6.8
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking uuid v0.7.1
[INFO] [stderr]    Compiling strum_macros v0.10.0
[INFO] [stderr]  Documenting ruby_on_rust v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/lexer/literal.rs:151:26
[INFO] [stdout]     |
[INFO] [stdout] 151 |         let monolithic = ( start_tok.clone() == Token::T_STRING_BEG && ( &str_type == "'" || &str_type == "\"" ) );
[INFO] [stdout]     |                          ^^                                                                                     ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 151 -         let monolithic = ( start_tok.clone() == Token::T_STRING_BEG && ( &str_type == "'" || &str_type == "\"" ) );
[INFO] [stdout] 151 +         let monolithic = start_tok.clone() == Token::T_STRING_BEG && ( &str_type == "'" || &str_type == "\"" );
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/lexer/literal.rs:287:28
[INFO] [stdout]     |
[INFO] [stdout] 287 |         let lookahead = if (lookahead.is_some() && !lookahead.clone().unwrap().is_empty()) { lookahead } else { None };
[INFO] [stdout]     |                            ^                                                             ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 287 -         let lookahead = if (lookahead.is_some() && !lookahead.clone().unwrap().is_empty()) { lookahead } else { None };
[INFO] [stdout] 287 +         let lookahead = if lookahead.is_some() && !lookahead.clone().unwrap().is_empty() { lookahead } else { None };
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/lexer/lexer.rs:705:14
[INFO] [stdout]     |
[INFO] [stdout] 705 | ...                   {tm = p }
[INFO] [stdout]     |                       ^      ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 705 -                                                     {tm = p }
[INFO] [stdout] 705 +                                                     tm = p
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/lexer/lexer.rs:709:14
[INFO] [stdout]     |
[INFO] [stdout] 709 | ...                   {tm = p - 2 }
[INFO] [stdout]     |                       ^          ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 709 -                                                     {tm = p - 2 }
[INFO] [stdout] 709 +                                                     tm = p - 2
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/lexer/lexer.rs:713:14
[INFO] [stdout]     |
[INFO] [stdout] 713 | ...                   {tm = p }
[INFO] [stdout]     |                       ^      ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 713 -                                                     {tm = p }
[INFO] [stdout] 713 +                                                     tm = p
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/lexer/lexer.rs:717:14
[INFO] [stdout]     |
[INFO] [stdout] 717 | ...                   {tm = p - 2 }
[INFO] [stdout]     |                       ^          ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 717 -                                                     {tm = p - 2 }
[INFO] [stdout] 717 +                                                     tm = p - 2
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/lexer/lexer.rs:721:14
[INFO] [stdout]     |
[INFO] [stdout] 721 | ...                   {tm = p - 2 }
[INFO] [stdout]     |                       ^          ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 721 -                                                     {tm = p - 2 }
[INFO] [stdout] 721 +                                                     tm = p - 2
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/lexer/lexer.rs:725:14
[INFO] [stdout]     |
[INFO] [stdout] 725 | ...                   {tm = p - 2 }
[INFO] [stdout]     |                       ^          ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 725 -                                                     {tm = p - 2 }
[INFO] [stdout] 725 +                                                     tm = p - 2
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/lexer/lexer.rs:729:14
[INFO] [stdout]     |
[INFO] [stdout] 729 | ...                   {tm = p - 3 }
[INFO] [stdout]     |                       ^          ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 729 -                                                     {tm = p - 3 }
[INFO] [stdout] 729 +                                                     tm = p - 3
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/lexer/lexer.rs:733:14
[INFO] [stdout]     |
[INFO] [stdout] 733 | ...                   {tm = p - 2 }
[INFO] [stdout]     |                       ^          ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 733 -                                                     {tm = p - 2 }
[INFO] [stdout] 733 +                                                     tm = p - 2
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/lexer/lexer.rs:737:14
[INFO] [stdout]     |
[INFO] [stdout] 737 | ...                   {tm = p - 2 }
[INFO] [stdout]     |                       ^          ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 737 -                                                     {tm = p - 2 }
[INFO] [stdout] 737 +                                                     tm = p - 2
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/lexer/lexer.rs:758:14
[INFO] [stdout]     |
[INFO] [stdout] 758 | ...                   {tm = p }
[INFO] [stdout]     |                       ^      ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 758 -                                                     {tm = p }
[INFO] [stdout] 758 +                                                     tm = p
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/lexer/lexer.rs:762:14
[INFO] [stdout]     |
[INFO] [stdout] 762 | ...                   {tm = p }
[INFO] [stdout]     |                       ^      ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 762 -                                                     {tm = p }
[INFO] [stdout] 762 +                                                     tm = p
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/lexer/lexer.rs:766:14
[INFO] [stdout]     |
[INFO] [stdout] 766 | ...                   {tm = p }
[INFO] [stdout]     |                       ^      ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 766 -                                                     {tm = p }
[INFO] [stdout] 766 +                                                     tm = p
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/lexer/lexer.rs:806:14
[INFO] [stdout]     |
[INFO] [stdout] 806 | ...                   {self.num_suffix_s = p }
[INFO] [stdout]     |                       ^                     ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 806 -                                                     {self.num_suffix_s = p }
[INFO] [stdout] 806 +                                                     self.num_suffix_s = p
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/lexer/lexer.rs:810:14
[INFO] [stdout]     |
[INFO] [stdout] 810 | ...                   {tm = p }
[INFO] [stdout]     |                       ^      ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 810 -                                                     {tm = p }
[INFO] [stdout] 810 +                                                     tm = p
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]     --> src/lexer/lexer.rs:5561:16
[INFO] [stdout]      |
[INFO] [stdout] 5561 | ...                   {p = pe - 3 }
[INFO] [stdout]      |                       ^          ^^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]      |
[INFO] [stdout] 5561 -                                                             {p = pe - 3 }
[INFO] [stdout] 5561 +                                                             p = pe - 3
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]     --> src/parser/parser.rs:7051:13
[INFO] [stdout]      |
[INFO] [stdout] 7051 | let __ = if ( _2.is_empty() && _1.len() == 1 ) {
[INFO] [stdout]      |             ^^                              ^^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 7051 - let __ = if ( _2.is_empty() && _1.len() == 1 ) {
[INFO] [stdout] 7051 + let __ = if _2.is_empty() && _1.len() == 1 {
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.05s
[INFO] running `Command { std: "docker" "inspect" "c0e8b4ec87faec5a9e921c5ee9adb3f86f144e182375ee60317f50d0c72c37c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0e8b4ec87faec5a9e921c5ee9adb3f86f144e182375ee60317f50d0c72c37c9", kill_on_drop: false }`
[INFO] [stdout] c0e8b4ec87faec5a9e921c5ee9adb3f86f144e182375ee60317f50d0c72c37c9