[INFO] cloning repository https://github.com/romanpopp/uml-generator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/romanpopp/uml-generator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fromanpopp%2Fuml-generator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fromanpopp%2Fuml-generator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5467eb64fe003a769e56c5f593477a952c9e4211
[INFO] linting romanpopp/uml-generator against nightly for clippy-nonminimal_bool-denied
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fromanpopp%2Fuml-generator" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/romanpopp/uml-generator
[INFO] finished tweaking git repo https://github.com/romanpopp/uml-generator
[INFO] tweaked toml for git repo https://github.com/romanpopp/uml-generator written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/romanpopp/uml-generator 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 git repo https://github.com/romanpopp/uml-generator 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-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 0573f9eba8baf9bd4a3cc4b75d13841f52626ac18aade0b3edd59e77edd5c7fe
[INFO] running `Command { std: "docker" "start" "-a" "0573f9eba8baf9bd4a3cc4b75d13841f52626ac18aade0b3edd59e77edd5c7fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0573f9eba8baf9bd4a3cc4b75d13841f52626ac18aade0b3edd59e77edd5c7fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0573f9eba8baf9bd4a3cc4b75d13841f52626ac18aade0b3edd59e77edd5c7fe", kill_on_drop: false }`
[INFO] [stdout] 0573f9eba8baf9bd4a3cc4b75d13841f52626ac18aade0b3edd59e77edd5c7fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 44e3cad4201e8febd165f86ee9e8696d9c503f5bba967498f83ecdd57861d51a
[INFO] running `Command { std: "docker" "start" "-a" "44e3cad4201e8febd165f86ee9e8696d9c503f5bba967498f83ecdd57861d51a", kill_on_drop: false }`
[INFO] [stderr]     Checking regex v1.10.6
[INFO] [stderr]     Checking uml-generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/main.rs:78:20
[INFO] [stdout]    |
[INFO] [stdout] 78 |                 && !(arrow.start == arrow.end)
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `(arrow.start != arrow.end)`
[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: used consecutive `str::replace` call
[INFO] [stdout]    --> src/main.rs:119:26
[INFO] [stdout]     |
[INFO] [stdout] 119 |         .map(|line| line.replace('<', "~").replace('>', "~"))
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `replace(['<', '>'], "~")`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_str_replace
[INFO] [stdout]     = note: `#[warn(clippy::collapsible_str_replace)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: compiling a regex in a loop
[INFO] [stdout]    --> src/main.rs:141:22
[INFO] [stdout]     |
[INFO] [stdout] 141 |             let re = Regex::new(r"~[^~]*~").unwrap();
[INFO] [stdout]     |                      ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: move the regex construction outside this loop
[INFO] [stdout]    --> src/main.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 116 | /     for line in contents
[INFO] [stdout] 117 | |         .lines()
[INFO] [stdout] 118 | |         .map(str::trim)
[INFO] [stdout] 119 | |         .map(|line| line.replace('<', "~").replace('>', "~"))
[INFO] [stdout]     | |_____________________________________________________________^
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#regex_creation_in_loops
[INFO] [stdout]     = note: `#[warn(clippy::regex_creation_in_loops)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> src/main.rs:185:24
[INFO] [stdout]     |
[INFO] [stdout] 185 |                     if param.len() == 0 {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `param.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: useless use of `format!`
[INFO] [stdout]    --> src/main.rs:186:32
[INFO] [stdout]     |
[INFO] [stdout] 186 |                         return format!("");
[INFO] [stdout]     |                                ^^^^^^^^^^^ help: consider using `String::new()`: `String::new()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stdout]     = note: `#[warn(clippy::useless_format)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> src/main.rs:206:16
[INFO] [stdout]     |
[INFO] [stdout] 206 |             if values.len() > 0 {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!values.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: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/main.rs:280:5
[INFO] [stdout]     |
[INFO] [stdout] 280 | /     match data_context {
[INFO] [stdout] 281 | |         Some(value) => {
[INFO] [stdout] 282 | |             let arrow = Arrow {
[INFO] [stdout] 283 | |                 start: class_name.clone(),
[INFO] [stdout] ...   |
[INFO] [stdout] 289 | |         None => (),
[INFO] [stdout] 290 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout]     = note: `#[warn(clippy::single_match)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 280 ~     if let Some(value) = data_context {
[INFO] [stdout] 281 +         let arrow = Arrow {
[INFO] [stdout] 282 +             start: class_name.clone(),
[INFO] [stdout] 283 +             end: value.to_owned(),
[INFO] [stdout] 284 +             arrow_type: ArrowType::Realization,
[INFO] [stdout] 285 +         };
[INFO] [stdout] 286 +         arrow_list.push(arrow);
[INFO] [stdout] 287 +     }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: match expression looks like `matches!` macro
[INFO] [stdout]    --> src/main.rs:296:5
[INFO] [stdout]     |
[INFO] [stdout] 296 | /     match (chars.next(), chars.next()) {
[INFO] [stdout] 297 | |         (Some('I'), Some(c)) if c.is_uppercase() => true,
[INFO] [stdout] 298 | |         _ => false,
[INFO] [stdout] 299 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_like_matches_macro
[INFO] [stdout]     = note: `#[warn(clippy::match_like_matches_macro)]` on by default
[INFO] [stdout] help: use `matches!` directly
[INFO] [stdout]     |
[INFO] [stdout] 296 -     match (chars.next(), chars.next()) {
[INFO] [stdout] 297 -         (Some('I'), Some(c)) if c.is_uppercase() => true,
[INFO] [stdout] 298 -         _ => false,
[INFO] [stdout] 299 -     }
[INFO] [stdout] 296 +     matches!((chars.next(), chars.next()), (Some('I'), Some(c)) if c.is_uppercase())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/main.rs:78:20
[INFO] [stdout]    |
[INFO] [stdout] 78 |                 && !(arrow.start == arrow.end)
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `(arrow.start != arrow.end)`
[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: used consecutive `str::replace` call
[INFO] [stdout]    --> src/main.rs:119:26
[INFO] [stdout]     |
[INFO] [stdout] 119 |         .map(|line| line.replace('<', "~").replace('>', "~"))
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `replace(['<', '>'], "~")`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_str_replace
[INFO] [stdout]     = note: `#[warn(clippy::collapsible_str_replace)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: compiling a regex in a loop
[INFO] [stdout]    --> src/main.rs:141:22
[INFO] [stdout]     |
[INFO] [stdout] 141 |             let re = Regex::new(r"~[^~]*~").unwrap();
[INFO] [stdout]     |                      ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: move the regex construction outside this loop
[INFO] [stdout]    --> src/main.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 116 | /     for line in contents
[INFO] [stdout] 117 | |         .lines()
[INFO] [stdout] 118 | |         .map(str::trim)
[INFO] [stdout] 119 | |         .map(|line| line.replace('<', "~").replace('>', "~"))
[INFO] [stdout]     | |_____________________________________________________________^
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#regex_creation_in_loops
[INFO] [stdout]     = note: `#[warn(clippy::regex_creation_in_loops)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> src/main.rs:185:24
[INFO] [stdout]     |
[INFO] [stdout] 185 |                     if param.len() == 0 {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `param.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: useless use of `format!`
[INFO] [stdout]    --> src/main.rs:186:32
[INFO] [stdout]     |
[INFO] [stdout] 186 |                         return format!("");
[INFO] [stdout]     |                                ^^^^^^^^^^^ help: consider using `String::new()`: `String::new()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stdout]     = note: `#[warn(clippy::useless_format)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> src/main.rs:206:16
[INFO] [stdout]     |
[INFO] [stdout] 206 |             if values.len() > 0 {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!values.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: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/main.rs:280:5
[INFO] [stdout]     |
[INFO] [stdout] 280 | /     match data_context {
[INFO] [stdout] 281 | |         Some(value) => {
[INFO] [stdout] 282 | |             let arrow = Arrow {
[INFO] [stdout] 283 | |                 start: class_name.clone(),
[INFO] [stdout] ...   |
[INFO] [stdout] 289 | |         None => (),
[INFO] [stdout] 290 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout]     = note: `#[warn(clippy::single_match)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 280 ~     if let Some(value) = data_context {
[INFO] [stdout] 281 +         let arrow = Arrow {
[INFO] [stdout] 282 +             start: class_name.clone(),
[INFO] [stdout] 283 +             end: value.to_owned(),
[INFO] [stdout] 284 +             arrow_type: ArrowType::Realization,
[INFO] [stdout] 285 +         };
[INFO] [stdout] 286 +         arrow_list.push(arrow);
[INFO] [stdout] 287 +     }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: match expression looks like `matches!` macro
[INFO] [stdout]    --> src/main.rs:296:5
[INFO] [stdout]     |
[INFO] [stdout] 296 | /     match (chars.next(), chars.next()) {
[INFO] [stdout] 297 | |         (Some('I'), Some(c)) if c.is_uppercase() => true,
[INFO] [stdout] 298 | |         _ => false,
[INFO] [stdout] 299 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_like_matches_macro
[INFO] [stdout]     = note: `#[warn(clippy::match_like_matches_macro)]` on by default
[INFO] [stdout] help: use `matches!` directly
[INFO] [stdout]     |
[INFO] [stdout] 296 -     match (chars.next(), chars.next()) {
[INFO] [stdout] 297 -         (Some('I'), Some(c)) if c.is_uppercase() => true,
[INFO] [stdout] 298 -         _ => false,
[INFO] [stdout] 299 -     }
[INFO] [stdout] 296 +     matches!((chars.next(), chars.next()), (Some('I'), Some(c)) if c.is_uppercase())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "44e3cad4201e8febd165f86ee9e8696d9c503f5bba967498f83ecdd57861d51a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44e3cad4201e8febd165f86ee9e8696d9c503f5bba967498f83ecdd57861d51a", kill_on_drop: false }`
[INFO] [stdout] 44e3cad4201e8febd165f86ee9e8696d9c503f5bba967498f83ecdd57861d51a