[INFO] fetching crate tweld 0.2.1-alpha.nu-str-eng...
[INFO] linting tweld-0.2.1-alpha.nu-str-eng against nightly for clippy-nonminimal_bool-denied
[INFO] extracting crate tweld 0.2.1-alpha.nu-str-eng into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate tweld 0.2.1-alpha.nu-str-eng
[INFO] finished tweaking crates.io crate tweld 0.2.1-alpha.nu-str-eng
[INFO] tweaked toml for crates.io crate tweld 0.2.1-alpha.nu-str-eng written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tweld 0.2.1-alpha.nu-str-eng 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] crate crates.io crate tweld 0.2.1-alpha.nu-str-eng already has a lockfile, it will not be regenerated
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 982c05ac0c4d3a7d3206acb3256459f34d5d7ce051ff5129bb150be6f6f7f254
[INFO] running `Command { std: "docker" "start" "-a" "982c05ac0c4d3a7d3206acb3256459f34d5d7ce051ff5129bb150be6f6f7f254", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "982c05ac0c4d3a7d3206acb3256459f34d5d7ce051ff5129bb150be6f6f7f254", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "982c05ac0c4d3a7d3206acb3256459f34d5d7ce051ff5129bb150be6f6f7f254", kill_on_drop: false }`
[INFO] [stdout] 982c05ac0c4d3a7d3206acb3256459f34d5d7ce051ff5129bb150be6f6f7f254
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 3746c9b603a51f1348fc00bb78d661206ce7ba2703b355c59c1b178429316084
[INFO] running `Command { std: "docker" "start" "-a" "3746c9b603a51f1348fc00bb78d661206ce7ba2703b355c59c1b178429316084", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling thiserror v2.0.18
[INFO] [stderr]     Checking heck v0.5.0
[INFO] [stderr]    Compiling thiserror-impl v2.0.18
[INFO] [stderr]     Checking tweld v0.2.1-alpha.nu-str-eng (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `parser::TweldDsl`
[INFO] [stdout]  --> src/builder.rs:3:44
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::{models::{Modifier, TokenPart}, parser::TweldDsl};
[INFO] [stdout]   |                                            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `parser::TweldDsl`
[INFO] [stdout]  --> src/builder.rs:3:44
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::{models::{Modifier, TokenPart}, parser::TweldDsl};
[INFO] [stdout]   |                                            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `value` is never read
[INFO] [stdout]   --> src/builder.rs:11:69
[INFO] [stdout]    |
[INFO] [stdout] 11 |             TokenPart::Plain(mut value) => { full.push_str(&value); value = value.replace(" ", "") },
[INFO] [stdout]    |                                                                     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/parser.rs:112:27
[INFO] [stdout]     |
[INFO] [stdout] 112 |           let ignore_char = char == ' ' 
[INFO] [stdout]     |  ___________________________^
[INFO] [stdout] 113 | |             || char == '\t'
[INFO] [stdout] 114 | |             || char == '{' 
[INFO] [stdout] 115 | |             || char == '"' 
[INFO] [stdout] 116 | |             || char == '\''
[INFO] [stdout] 117 | |             || char == '\'';
[INFO] [stdout]     | |___________________________^
[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] help: try
[INFO] [stdout]     |
[INFO] [stdout] 112 -         let ignore_char = char == ' ' 
[INFO] [stdout] 113 -             || char == '\t'
[INFO] [stdout] 114 -             || char == '{' 
[INFO] [stdout] 115 -             || char == '"' 
[INFO] [stdout] 116 -             || char == '\''
[INFO] [stdout] 117 -             || char == '\'';
[INFO] [stdout] 112 +         let ignore_char = !(char != ' ' && char != '\t' && char != '{' && char != '"' && char != '\'');
[INFO] [stdout]     |
[INFO] [stdout] 112 -         let ignore_char = char == ' ' 
[INFO] [stdout] 113 -             || char == '\t'
[INFO] [stdout] 114 -             || char == '{' 
[INFO] [stdout] 115 -             || char == '"' 
[INFO] [stdout] 116 -             || char == '\''
[INFO] [stdout] 117 -             || char == '\'';
[INFO] [stdout] 112 +         let ignore_char = char == ' ' || char == '\t' || char == '{' || char == '"' || char == '\'';
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this loop could be written as a `for` loop
[INFO] [stdout]    --> src/parser.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     while let Some(char) = clean_chars.next() {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `for char in clean_chars.by_ref()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#while_let_on_iterator
[INFO] [stdout]     = note: `#[warn(clippy::while_let_on_iterator)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> src/parser.rs:158:28
[INFO] [stdout]     |
[INFO] [stdout] 158 |                         if word.len() > 0 {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!word.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: length comparison to zero
[INFO] [stdout]    --> src/parser.rs:183:28
[INFO] [stdout]     |
[INFO] [stdout] 183 |                         if word.len() > 0 {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!word.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] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> src/parser.rs:198:43
[INFO] [stdout]     |
[INFO] [stdout] 198 |                     if word_terminator && word.len() > 0 {
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!word.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] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> src/parser.rs:208:28
[INFO] [stdout]     |
[INFO] [stdout] 208 |                         if word.len() > 0 {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!word.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] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> src/parser.rs:213:28
[INFO] [stdout]     |
[INFO] [stdout] 213 |                         if modifiers.len() > 0 {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!modifiers.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] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> src/parser.rs:254:43
[INFO] [stdout]     |
[INFO] [stdout] 254 |                     if word_terminator && word.len() > 0 {
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!word.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] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `Result.and_then(|x| Ok(y))`, which is more succinctly expressed as `map(|x| y)`
[INFO] [stdout]    --> src/parser.rs:292:51
[INFO] [stdout]     |
[INFO] [stdout] 292 |   ...                   start_index = left_word
[INFO] [stdout]     |  _____________________________________^
[INFO] [stdout] 293 | | ...                       .parse()                                        
[INFO] [stdout] 294 | | ...                       .and_then(|r| Ok(Some(r)))
[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: try
[INFO] [stdout]     |
[INFO] [stdout] 292 ~                                     start_index = left_word
[INFO] [stdout] 293 +                                         .parse().map(|r| Some(r))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `Result.and_then(|x| Ok(y))`, which is more succinctly expressed as `map(|x| y)`
[INFO] [stdout]    --> src/parser.rs:301:49
[INFO] [stdout]     |
[INFO] [stdout] 301 |   ...                   end_index = right_word
[INFO] [stdout]     |  ___________________________________^
[INFO] [stdout] 302 | | ...                       .parse()                                        
[INFO] [stdout] 303 | | ...                       .and_then(|r| Ok(Some(r)))
[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] help: try
[INFO] [stdout]     |
[INFO] [stdout] 301 ~                                     end_index = right_word
[INFO] [stdout] 302 +                                         .parse().map(|r| Some(r))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> src/parser.rs:320:28
[INFO] [stdout]     |
[INFO] [stdout] 320 |                         if modifiers.len() > 0 {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!modifiers.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] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> src/parser.rs:355:12
[INFO] [stdout]     |
[INFO] [stdout] 355 |         if word.len() > 0 {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!word.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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/builder.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     return full;
[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] 41 -     return full;
[INFO] [stdout] 41 +     full
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calling `push_str()` using a single-character string literal
[INFO] [stdout]   --> src/builder.rs:17:74
[INFO] [stdout]    |
[INFO] [stdout] 17 |                         Modifier::Plural => { if !value.ends_with('s') { value.push_str("s"); } },
[INFO] [stdout]    |                                                                          ^^^^^^^^^^^^^^^^^^^ help: consider using `push` with a character literal: `value.push('s')`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_add_str
[INFO] [stdout]    = note: `#[warn(clippy::single_char_add_str)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` statement can be collapsed
[INFO] [stdout]   --> src/scanner.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 | /                 if let Some(TokenTree::Group(grp)) = tokens.peek() {
[INFO] [stdout] 19 | |                     if grp.delimiter() == Delimiter::Bracket {
[INFO] [stdout] 20 | |                         // We found @[ ... ]! Consume the bracket group.
[INFO] [stdout] 21 | |                         let bracket_group = if let TokenTree::Group(grp) = tokens.next().unwrap() {
[INFO] [stdout] ...  |
[INFO] [stdout] 35 | |                 }
[INFO] [stdout]    | |_________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stdout]    = note: `#[warn(clippy::collapsible_if)]` on by default
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]    |
[INFO] [stdout] 18 ~                 if let Some(TokenTree::Group(grp)) = tokens.peek()
[INFO] [stdout] 19 ~                     && grp.delimiter() == Delimiter::Bracket {
[INFO] [stdout] 20 |                         // We found @[ ... ]! Consume the bracket group.
[INFO] [stdout] ...
[INFO] [stdout] 33 |                         continue;
[INFO] [stdout] 34 ~                     }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `value` is never read
[INFO] [stdout]   --> src/builder.rs:11:69
[INFO] [stdout]    |
[INFO] [stdout] 11 |             TokenPart::Plain(mut value) => { full.push_str(&value); value = value.replace(" ", "") },
[INFO] [stdout]    |                                                                     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/parser.rs:112:27
[INFO] [stdout]     |
[INFO] [stdout] 112 |           let ignore_char = char == ' ' 
[INFO] [stdout]     |  ___________________________^
[INFO] [stdout] 113 | |             || char == '\t'
[INFO] [stdout] 114 | |             || char == '{' 
[INFO] [stdout] 115 | |             || char == '"' 
[INFO] [stdout] 116 | |             || char == '\''
[INFO] [stdout] 117 | |             || char == '\'';
[INFO] [stdout]     | |___________________________^
[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] help: try
[INFO] [stdout]     |
[INFO] [stdout] 112 -         let ignore_char = char == ' ' 
[INFO] [stdout] 113 -             || char == '\t'
[INFO] [stdout] 114 -             || char == '{' 
[INFO] [stdout] 115 -             || char == '"' 
[INFO] [stdout] 116 -             || char == '\''
[INFO] [stdout] 117 -             || char == '\'';
[INFO] [stdout] 112 +         let ignore_char = !(char != ' ' && char != '\t' && char != '{' && char != '"' && char != '\'');
[INFO] [stdout]     |
[INFO] [stdout] 112 -         let ignore_char = char == ' ' 
[INFO] [stdout] 113 -             || char == '\t'
[INFO] [stdout] 114 -             || char == '{' 
[INFO] [stdout] 115 -             || char == '"' 
[INFO] [stdout] 116 -             || char == '\''
[INFO] [stdout] 117 -             || char == '\'';
[INFO] [stdout] 112 +         let ignore_char = char == ' ' || char == '\t' || char == '{' || char == '"' || char == '\'';
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this loop could be written as a `for` loop
[INFO] [stdout]    --> src/parser.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     while let Some(char) = clean_chars.next() {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `for char in clean_chars.by_ref()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#while_let_on_iterator
[INFO] [stdout]     = note: `#[warn(clippy::while_let_on_iterator)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> src/parser.rs:158:28
[INFO] [stdout]     |
[INFO] [stdout] 158 |                         if word.len() > 0 {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!word.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: length comparison to zero
[INFO] [stdout]    --> src/parser.rs:183:28
[INFO] [stdout]     |
[INFO] [stdout] 183 |                         if word.len() > 0 {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!word.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] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> src/parser.rs:198:43
[INFO] [stdout]     |
[INFO] [stdout] 198 |                     if word_terminator && word.len() > 0 {
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!word.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] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> src/parser.rs:208:28
[INFO] [stdout]     |
[INFO] [stdout] 208 |                         if word.len() > 0 {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!word.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] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> src/parser.rs:213:28
[INFO] [stdout]     |
[INFO] [stdout] 213 |                         if modifiers.len() > 0 {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!modifiers.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] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> src/parser.rs:254:43
[INFO] [stdout]     |
[INFO] [stdout] 254 |                     if word_terminator && word.len() > 0 {
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!word.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] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `Result.and_then(|x| Ok(y))`, which is more succinctly expressed as `map(|x| y)`
[INFO] [stdout]    --> src/parser.rs:292:51
[INFO] [stdout]     |
[INFO] [stdout] 292 |   ...                   start_index = left_word
[INFO] [stdout]     |  _____________________________________^
[INFO] [stdout] 293 | | ...                       .parse()                                        
[INFO] [stdout] 294 | | ...                       .and_then(|r| Ok(Some(r)))
[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: try
[INFO] [stdout]     |
[INFO] [stdout] 292 ~                                     start_index = left_word
[INFO] [stdout] 293 +                                         .parse().map(|r| Some(r))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `Result.and_then(|x| Ok(y))`, which is more succinctly expressed as `map(|x| y)`
[INFO] [stdout]    --> src/parser.rs:301:49
[INFO] [stdout]     |
[INFO] [stdout] 301 |   ...                   end_index = right_word
[INFO] [stdout]     |  ___________________________________^
[INFO] [stdout] 302 | | ...                       .parse()                                        
[INFO] [stdout] 303 | | ...                       .and_then(|r| Ok(Some(r)))
[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] help: try
[INFO] [stdout]     |
[INFO] [stdout] 301 ~                                     end_index = right_word
[INFO] [stdout] 302 +                                         .parse().map(|r| Some(r))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> src/parser.rs:320:28
[INFO] [stdout]     |
[INFO] [stdout] 320 |                         if modifiers.len() > 0 {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!modifiers.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] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> src/parser.rs:355:12
[INFO] [stdout]     |
[INFO] [stdout] 355 |         if word.len() > 0 {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!word.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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/builder.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     return full;
[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] 41 -     return full;
[INFO] [stdout] 41 +     full
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calling `push_str()` using a single-character string literal
[INFO] [stdout]   --> src/builder.rs:17:74
[INFO] [stdout]    |
[INFO] [stdout] 17 |                         Modifier::Plural => { if !value.ends_with('s') { value.push_str("s"); } },
[INFO] [stdout]    |                                                                          ^^^^^^^^^^^^^^^^^^^ help: consider using `push` with a character literal: `value.push('s')`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_add_str
[INFO] [stdout]    = note: `#[warn(clippy::single_char_add_str)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` statement can be collapsed
[INFO] [stdout]   --> src/scanner.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 | /                 if let Some(TokenTree::Group(grp)) = tokens.peek() {
[INFO] [stdout] 19 | |                     if grp.delimiter() == Delimiter::Bracket {
[INFO] [stdout] 20 | |                         // We found @[ ... ]! Consume the bracket group.
[INFO] [stdout] 21 | |                         let bracket_group = if let TokenTree::Group(grp) = tokens.next().unwrap() {
[INFO] [stdout] ...  |
[INFO] [stdout] 35 | |                 }
[INFO] [stdout]    | |_________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stdout]    = note: `#[warn(clippy::collapsible_if)]` on by default
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]    |
[INFO] [stdout] 18 ~                 if let Some(TokenTree::Group(grp)) = tokens.peek()
[INFO] [stdout] 19 ~                     && grp.delimiter() == Delimiter::Bracket {
[INFO] [stdout] 20 |                         // We found @[ ... ]! Consume the bracket group.
[INFO] [stdout] ...
[INFO] [stdout] 33 |                         continue;
[INFO] [stdout] 34 ~                     }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module has the same name as its containing module
[INFO] [stdout]    --> src/tests.rs:3:1
[INFO] [stdout]     |
[INFO] [stdout]   3 | / mod tests {
[INFO] [stdout]   4 | |     use crate::scanner::scan_tokens;
[INFO] [stdout]   5 | |     use proc_macro2::TokenStream;
[INFO] [stdout]   6 | |     use quote::quote;
[INFO] [stdout] ...   |
[INFO] [stdout] 374 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#module_inception
[INFO] [stdout]     = note: `#[warn(clippy::module_inception)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `proc_macro2::TokenStream`
[INFO] [stdout]   --> src/tests.rs:16:38
[INFO] [stdout]    |
[INFO] [stdout] 16 |             let result = scan_tokens(TokenStream::from(input));
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `TokenStream::from()`: `input`
[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/tests.rs:29:38
[INFO] [stdout]    |
[INFO] [stdout] 29 |             let result = scan_tokens(TokenStream::from(input));
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `TokenStream::from()`: `input`
[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/tests.rs:201:38
[INFO] [stdout]     |
[INFO] [stdout] 201 |             let result = scan_tokens(TokenStream::from(input));
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `TokenStream::from()`: `input`
[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/tests.rs:286:38
[INFO] [stdout]     |
[INFO] [stdout] 286 |             let result = scan_tokens(TokenStream::from(input));
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `TokenStream::from()`: `input`
[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/tests.rs:333:38
[INFO] [stdout]     |
[INFO] [stdout] 333 |             let result = scan_tokens(TokenStream::from(input));
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `TokenStream::from()`: `input`
[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/tests.rs:366:38
[INFO] [stdout]     |
[INFO] [stdout] 366 |             let result = scan_tokens(TokenStream::from(input));
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `TokenStream::from()`: `input`
[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 4.30s
[INFO] running `Command { std: "docker" "inspect" "3746c9b603a51f1348fc00bb78d661206ce7ba2703b355c59c1b178429316084", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3746c9b603a51f1348fc00bb78d661206ce7ba2703b355c59c1b178429316084", kill_on_drop: false }`
[INFO] [stdout] 3746c9b603a51f1348fc00bb78d661206ce7ba2703b355c59c1b178429316084