[INFO] cloning repository https://github.com/lingxh/smtp2larkapi
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lingxh/smtp2larkapi" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flingxh%2Fsmtp2larkapi", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flingxh%2Fsmtp2larkapi'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 08dd3fd484423b797070ddfa398d2ffd45a678b3
[INFO] linting lingxh/smtp2larkapi against nightly for clippy-nonminimal_bool-denied
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flingxh%2Fsmtp2larkapi" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/lingxh/smtp2larkapi
[INFO] finished tweaking git repo https://github.com/lingxh/smtp2larkapi
[INFO] tweaked toml for git repo https://github.com/lingxh/smtp2larkapi written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lingxh/smtp2larkapi 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/lingxh/smtp2larkapi 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 }`
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[INFO] running `Command { std: "docker" "start" "-a" "46359cae9a6db9098633c21f06b9193c62fe4f6ad413dc586832536500d9329a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46359cae9a6db9098633c21f06b9193c62fe4f6ad413dc586832536500d9329a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46359cae9a6db9098633c21f06b9193c62fe4f6ad413dc586832536500d9329a", kill_on_drop: false }`
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[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/lark_api_mail.rs:471:13
[INFO] [stdout]     |
[INFO] [stdout] 471 |             app_info: app_info,
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^ help: replace it with: `app_info`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout]     = note: `#[warn(clippy::redundant_field_names)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/lark_api_mail.rs:471:13
[INFO] [stdout]     |
[INFO] [stdout] 471 |             app_info: app_info,
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^ help: replace it with: `app_info`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout]     = note: `#[warn(clippy::redundant_field_names)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: deref which would be done by auto-deref
[INFO] [stdout]    --> src/lark_api_mail.rs:274:39
[INFO] [stdout]     |
[INFO] [stdout] 274 |             match check_token_expires(&mut *user_token, &mut *app_token, &app_info, client.clone())
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^ help: try: `&mut user_token`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref
[INFO] [stdout]     = note: `#[warn(clippy::explicit_auto_deref)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: deref which would be done by auto-deref
[INFO] [stdout]    --> src/lark_api_mail.rs:274:57
[INFO] [stdout]     |
[INFO] [stdout] 274 |             match check_token_expires(&mut *user_token, &mut *app_token, &app_info, client.clone())
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^ help: try: `&mut app_token`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `to_string` applied to a type that implements `Display` in `println!` args
[INFO] [stdout]    --> src/lark_api_mail.rs:281:65
[INFO] [stdout]     |
[INFO] [stdout] 281 |                         Local::now().format("%Y/%m/%d %H:%M:%S").to_string(),
[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 `println!` args
[INFO] [stdout]    --> src/lark_api_mail.rs:282:26
[INFO] [stdout]     |
[INFO] [stdout] 282 |                         e.to_string()
[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: length comparison to zero
[INFO] [stdout]    --> src/lark_api_mail.rs:333:8
[INFO] [stdout]     |
[INFO] [stdout] 333 |     if cc.len() != 0 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!cc.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/lark_api_mail.rs:336:8
[INFO] [stdout]     |
[INFO] [stdout] 336 |     if bcc.len() != 0 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!bcc.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: `to_string` applied to a type that implements `Display` in `format!` args
[INFO] [stdout]    --> src/lark_api_mail.rs:360:36
[INFO] [stdout]     |
[INFO] [stdout] 360 |                 content_type.c_type.to_string(),
[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: `to_string` applied to a type that implements `Display` in `format!` args
[INFO] [stdout]    --> src/lark_api_mail.rs:361:57
[INFO] [stdout]     |
[INFO] [stdout] 361 |                 content_type.c_subtype.as_ref().unwrap().to_string()
[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: length comparison to zero
[INFO] [stdout]    --> src/lark_api_mail.rs:388:8
[INFO] [stdout]     |
[INFO] [stdout] 388 |     if html.len() != 0 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!html.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/lark_api_mail.rs:392:8
[INFO] [stdout]     |
[INFO] [stdout] 392 |     if attachments.len() != 0 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!attachments.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: called `unwrap` on `code` after checking its variant with `is_some`
[INFO] [stdout]    --> src/lark_api_mail.rs:426:24
[INFO] [stdout]     |
[INFO] [stdout] 425 |         let user_token = if code.is_some() && code.unwrap().len() > 0 {
[INFO] [stdout]     |                             -------------- the check is happening here
[INFO] [stdout] 426 |             let code = code.unwrap();
[INFO] [stdout]     |                        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: try using `match`
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_unwrap
[INFO] [stdout]     = note: `#[warn(clippy::unnecessary_unwrap)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> src/lark_api_mail.rs:425:47
[INFO] [stdout]     |
[INFO] [stdout] 425 |         let user_token = if code.is_some() && code.unwrap().len() > 0 {
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!code.unwrap().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: name `NULL` contains a capitalized acronym
[INFO] [stdout]   --> src/smtp_server.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 67 |     NULL,
[INFO] [stdout]    |     ^^^^ help: consider making the acronym lowercase, except the initial letter: `Null`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#upper_case_acronyms
[INFO] [stdout]    = note: `#[warn(clippy::upper_case_acronyms)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: name `DATA` contains a capitalized acronym
[INFO] [stdout]   --> src/smtp_server.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 68 |     DATA,
[INFO] [stdout]    |     ^^^^ help: consider making the acronym lowercase, except the initial letter: `Data`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#upper_case_acronyms
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: name `AUTH` contains a capitalized acronym
[INFO] [stdout]   --> src/smtp_server.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     AUTH,
[INFO] [stdout]    |     ^^^^ help: consider making the acronym lowercase, except the initial letter: `Auth`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#upper_case_acronyms
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> src/smtp_server.rs:143:9
[INFO] [stdout]     |
[INFO] [stdout] 143 |         self.mail_data.to.len() != 0
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!self.mail_data.to.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/smtp_server.rs:144:16
[INFO] [stdout]     |
[INFO] [stdout] 144 |             && self.mail_data.from.mail_address.len() != 0
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!self.mail_data.from.mail_address.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/smtp_server.rs:145:16
[INFO] [stdout]     |
[INFO] [stdout] 145 |             && self.mail_data.body.len() != 0
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!self.mail_data.body.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/smtp_server.rs:189:24
[INFO] [stdout]     |
[INFO] [stdout] 189 |                     if response.len() != 0 {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!response.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: deref which would be done by auto-deref
[INFO] [stdout]    --> src/lark_api_mail.rs:274:39
[INFO] [stdout]     |
[INFO] [stdout] 274 |             match check_token_expires(&mut *user_token, &mut *app_token, &app_info, client.clone())
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^ help: try: `&mut user_token`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref
[INFO] [stdout]     = note: `#[warn(clippy::explicit_auto_deref)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: deref which would be done by auto-deref
[INFO] [stdout]    --> src/lark_api_mail.rs:274:57
[INFO] [stdout]     |
[INFO] [stdout] 274 |             match check_token_expires(&mut *user_token, &mut *app_token, &app_info, client.clone())
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^ help: try: `&mut app_token`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `to_string` applied to a type that implements `Display` in `println!` args
[INFO] [stdout]    --> src/lark_api_mail.rs:281:65
[INFO] [stdout]     |
[INFO] [stdout] 281 |                         Local::now().format("%Y/%m/%d %H:%M:%S").to_string(),
[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 `print!` args
[INFO] [stdout]    --> src/smtp_server.rs:209:46
[INFO] [stdout]     |
[INFO] [stdout] 209 |                         print!("send:  {}", e.to_string());
[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/smtp_server.rs:232:33
[INFO] [stdout]     |
[INFO] [stdout] 232 |             "MAIL" => self.mail(&request).await,
[INFO] [stdout]     |                                 ^^^^^^^^ help: change this to: `request`
[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: `to_string` applied to a type that implements `Display` in `println!` args
[INFO] [stdout]    --> src/lark_api_mail.rs:282:26
[INFO] [stdout]     |
[INFO] [stdout] 282 |                         e.to_string()
[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/smtp_server.rs:233:33
[INFO] [stdout]     |
[INFO] [stdout] 233 |             "RCPT" => self.rcpt(&request).await,
[INFO] [stdout]     |                                 ^^^^^^^^ help: change this to: `request`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/smtp_server.rs:234:33
[INFO] [stdout]     |
[INFO] [stdout] 234 |             "DATA" => self.data(&request).await,
[INFO] [stdout]     |                                 ^^^^^^^^ help: change this to: `request`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/smtp_server.rs:236:33
[INFO] [stdout]     |
[INFO] [stdout] 236 |             "AUTH" => self.auth(&request).await,
[INFO] [stdout]     |                                 ^^^^^^^^ help: change this to: `request`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> src/lark_api_mail.rs:333:8
[INFO] [stdout]     |
[INFO] [stdout] 333 |     if cc.len() != 0 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!cc.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/lark_api_mail.rs:336:8
[INFO] [stdout]     |
[INFO] [stdout] 336 |     if bcc.len() != 0 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!bcc.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: `to_string` applied to a type that implements `Display` in `format!` args
[INFO] [stdout]    --> src/lark_api_mail.rs:360:36
[INFO] [stdout]     |
[INFO] [stdout] 360 |                 content_type.c_type.to_string(),
[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: `to_string` applied to a type that implements `Display` in `format!` args
[INFO] [stdout]    --> src/lark_api_mail.rs:361:57
[INFO] [stdout]     |
[INFO] [stdout] 361 |                 content_type.c_subtype.as_ref().unwrap().to_string()
[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: length comparison to zero
[INFO] [stdout]    --> src/lark_api_mail.rs:388:8
[INFO] [stdout]     |
[INFO] [stdout] 388 |     if html.len() != 0 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!html.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/lark_api_mail.rs:392:8
[INFO] [stdout]     |
[INFO] [stdout] 392 |     if attachments.len() != 0 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!attachments.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: called `unwrap` on `args` after checking its variant with `is_some`
[INFO] [stdout]    --> src/smtp_server.rs:346:21
[INFO] [stdout]     |
[INFO] [stdout] 345 |                 let auth_plain = if args.is_some() && args.as_ref().unwrap().len() == 3 {
[INFO] [stdout]     |                                     -------------- the check is happening here
[INFO] [stdout] 346 |                     args.unwrap()[2].trim_end()
[INFO] [stdout]     |                     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: try using `match`
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_unwrap
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/smtp_server.rs:384:9
[INFO] [stdout]     |
[INFO] [stdout] 384 |         return Err(anyhow!("535 Authentication failed\r\n".to_string()));
[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] 384 -         return Err(anyhow!("535 Authentication failed\r\n".to_string()));
[INFO] [stdout] 384 +         Err(anyhow!("535 Authentication failed\r\n".to_string()))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `unwrap` on `code` after checking its variant with `is_some`
[INFO] [stdout]    --> src/lark_api_mail.rs:426:24
[INFO] [stdout]     |
[INFO] [stdout] 425 |         let user_token = if code.is_some() && code.unwrap().len() > 0 {
[INFO] [stdout]     |                             -------------- the check is happening here
[INFO] [stdout] 426 |             let code = code.unwrap();
[INFO] [stdout]     |                        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: try using `match`
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_unwrap
[INFO] [stdout]     = note: `#[warn(clippy::unnecessary_unwrap)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> src/lark_api_mail.rs:425:47
[INFO] [stdout]     |
[INFO] [stdout] 425 |         let user_token = if code.is_some() && code.unwrap().len() > 0 {
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!code.unwrap().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: this boolean expression can be simplified
[INFO] [stdout]    --> src/smtp_server.rs:388:12
[INFO] [stdout]     |
[INFO] [stdout] 388 |         if !self.tls_type.is_some() {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `self.tls_type.is_none()`
[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: name `NULL` contains a capitalized acronym
[INFO] [stdout]   --> src/smtp_server.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 67 |     NULL,
[INFO] [stdout]    |     ^^^^ help: consider making the acronym lowercase, except the initial letter: `Null`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#upper_case_acronyms
[INFO] [stdout]    = note: `#[warn(clippy::upper_case_acronyms)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: name `DATA` contains a capitalized acronym
[INFO] [stdout]   --> src/smtp_server.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 68 |     DATA,
[INFO] [stdout]    |     ^^^^ help: consider making the acronym lowercase, except the initial letter: `Data`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#upper_case_acronyms
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: name `AUTH` contains a capitalized acronym
[INFO] [stdout]   --> src/smtp_server.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     AUTH,
[INFO] [stdout]    |     ^^^^ help: consider making the acronym lowercase, except the initial letter: `Auth`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#upper_case_acronyms
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> src/smtp_server.rs:143:9
[INFO] [stdout]     |
[INFO] [stdout] 143 |         self.mail_data.to.len() != 0
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!self.mail_data.to.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/smtp_server.rs:144:16
[INFO] [stdout]     |
[INFO] [stdout] 144 |             && self.mail_data.from.mail_address.len() != 0
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!self.mail_data.from.mail_address.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/smtp_server.rs:145:16
[INFO] [stdout]     |
[INFO] [stdout] 145 |             && self.mail_data.body.len() != 0
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!self.mail_data.body.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/smtp_server.rs:189:24
[INFO] [stdout]     |
[INFO] [stdout] 189 |                     if response.len() != 0 {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!response.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: `to_string` applied to a type that implements `Display` in `print!` args
[INFO] [stdout]    --> src/smtp_server.rs:209:46
[INFO] [stdout]     |
[INFO] [stdout] 209 |                         print!("send:  {}", e.to_string());
[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/smtp_server.rs:232:33
[INFO] [stdout]     |
[INFO] [stdout] 232 |             "MAIL" => self.mail(&request).await,
[INFO] [stdout]     |                                 ^^^^^^^^ help: change this to: `request`
[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: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/smtp_server.rs:233:33
[INFO] [stdout]     |
[INFO] [stdout] 233 |             "RCPT" => self.rcpt(&request).await,
[INFO] [stdout]     |                                 ^^^^^^^^ help: change this to: `request`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/smtp_server.rs:234:33
[INFO] [stdout]     |
[INFO] [stdout] 234 |             "DATA" => self.data(&request).await,
[INFO] [stdout]     |                                 ^^^^^^^^ help: change this to: `request`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/smtp_server.rs:236:33
[INFO] [stdout]     |
[INFO] [stdout] 236 |             "AUTH" => self.auth(&request).await,
[INFO] [stdout]     |                                 ^^^^^^^^ help: change this to: `request`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `unwrap` on `args` after checking its variant with `is_some`
[INFO] [stdout]    --> src/smtp_server.rs:346:21
[INFO] [stdout]     |
[INFO] [stdout] 345 |                 let auth_plain = if args.is_some() && args.as_ref().unwrap().len() == 3 {
[INFO] [stdout]     |                                     -------------- the check is happening here
[INFO] [stdout] 346 |                     args.unwrap()[2].trim_end()
[INFO] [stdout]     |                     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: try using `match`
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_unwrap
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/smtp_server.rs:384:9
[INFO] [stdout]     |
[INFO] [stdout] 384 |         return Err(anyhow!("535 Authentication failed\r\n".to_string()));
[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] 384 -         return Err(anyhow!("535 Authentication failed\r\n".to_string()));
[INFO] [stdout] 384 +         Err(anyhow!("535 Authentication failed\r\n".to_string()))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/smtp_server.rs:388:12
[INFO] [stdout]     |
[INFO] [stdout] 388 |         if !self.tls_type.is_some() {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `self.tls_type.is_none()`
[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: `to_string` applied to a type that implements `Display` in `println!` args
[INFO] [stdout]   --> src/main.rs:86:57
[INFO] [stdout]    |
[INFO] [stdout] 86 |                 Local::now().format("%Y/%m/%d %H:%M:%S").to_string(),
[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 `println!` args
[INFO] [stdout]   --> src/main.rs:95:61
[INFO] [stdout]    |
[INFO] [stdout] 95 |                     Local::now().format("%Y/%m/%d %H:%M:%S").to_string(),
[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: `to_string` applied to a type that implements `Display` in `println!` args
[INFO] [stdout]    --> src/main.rs:103:61
[INFO] [stdout]     |
[INFO] [stdout] 103 |                     Local::now().format("%Y/%m/%d %H:%M:%S").to_string(),
[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: `to_string` applied to a type that implements `Display` in `println!` args
[INFO] [stdout]    --> src/main.rs:108:22
[INFO] [stdout]     |
[INFO] [stdout] 108 |                     e.to_string()
[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: `to_string` applied to a type that implements `Display` in `println!` args
[INFO] [stdout]   --> src/main.rs:86:57
[INFO] [stdout]    |
[INFO] [stdout] 86 |                 Local::now().format("%Y/%m/%d %H:%M:%S").to_string(),
[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 `println!` args
[INFO] [stdout]   --> src/main.rs:95:61
[INFO] [stdout]    |
[INFO] [stdout] 95 |                     Local::now().format("%Y/%m/%d %H:%M:%S").to_string(),
[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: `to_string` applied to a type that implements `Display` in `println!` args
[INFO] [stdout]    --> src/main.rs:103:61
[INFO] [stdout]     |
[INFO] [stdout] 103 |                     Local::now().format("%Y/%m/%d %H:%M:%S").to_string(),
[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: `to_string` applied to a type that implements `Display` in `println!` args
[INFO] [stdout]    --> src/main.rs:108:22
[INFO] [stdout]     |
[INFO] [stdout] 108 |                     e.to_string()
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 52.56s
[INFO] running `Command { std: "docker" "inspect" "f87540285e279875d25195e38f725c862ee1c82d732a9d68ece025fbed3a6b9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f87540285e279875d25195e38f725c862ee1c82d732a9d68ece025fbed3a6b9c", kill_on_drop: false }`
[INFO] [stdout] f87540285e279875d25195e38f725c862ee1c82d732a9d68ece025fbed3a6b9c