[INFO] cloning repository https://github.com/madolchepalooza/rust_mail_client [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/madolchepalooza/rust_mail_client" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmadolchepalooza%2Frust_mail_client", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmadolchepalooza%2Frust_mail_client'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] cd0c8836382cb4d658bbf8fa297d8b39485b5a67 [INFO] checking madolchepalooza/rust_mail_client against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmadolchepalooza%2Frust_mail_client" "/workspace/builds/worker-102/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-102/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/madolchepalooza/rust_mail_client on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/madolchepalooza/rust_mail_client [INFO] finished tweaking git repo https://github.com/madolchepalooza/rust_mail_client [INFO] tweaked toml for git repo https://github.com/madolchepalooza/rust_mail_client written to /workspace/builds/worker-102/source/Cargo.toml [INFO] crate git repo https://github.com/madolchepalooza/rust_mail_client already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "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 trust-dns-server v0.19.5 [INFO] [stderr] Downloaded trust-dns-client v0.19.5 [INFO] [stderr] Downloaded trust-dns v0.19.5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-102/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-102/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 01254f8324e0d63d8cfdb9cf64090d24929fe5f3a288a9503775a48907a1e1a1 [INFO] running `Command { std: "docker" "start" "-a" "01254f8324e0d63d8cfdb9cf64090d24929fe5f3a288a9503775a48907a1e1a1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "01254f8324e0d63d8cfdb9cf64090d24929fe5f3a288a9503775a48907a1e1a1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "01254f8324e0d63d8cfdb9cf64090d24929fe5f3a288a9503775a48907a1e1a1", kill_on_drop: false }` [INFO] [stdout] 01254f8324e0d63d8cfdb9cf64090d24929fe5f3a288a9503775a48907a1e1a1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-102/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-102/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1dfb8d4001a3fe7fb98b20d0b00498a5a316eb44940ec93d5367c481acdbbf49 [INFO] running `Command { std: "docker" "start" "-a" "1dfb8d4001a3fe7fb98b20d0b00498a5a316eb44940ec93d5367c481acdbbf49", kill_on_drop: false }` [INFO] [stderr] Copying to /tmp/fixit [INFO] [stderr] Running 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[stdout] warning: unreachable statement [INFO] [stdout] --> src/pop3.rs:628:5 [INFO] [stdout] | [INFO] [stdout] 624 | return Ok(counter); [INFO] [stdout] | ------------------ any code following this expression is unreachable [INFO] [stdout] ... [INFO] [stdout] 628 | return Ok(0); [INFO] [stdout] | ^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/pop3.rs:284:13 [INFO] [stdout] | [INFO] [stdout] 284 | _ => { [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/pop3.rs:312:13 [INFO] [stdout] | [INFO] [stdout] 312 | _ => { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/pop3.rs:349:13 [INFO] [stdout] | [INFO] [stdout] 349 | _ => { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/pop3.rs:382:13 [INFO] [stdout] | [INFO] [stdout] 382 | _ => { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/pop3.rs:435:13 [INFO] [stdout] | [INFO] [stdout] 435 | _ => { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/pop3.rs:628:5 [INFO] [stdout] | [INFO] [stdout] 624 | return Ok(counter); [INFO] [stdout] | ------------------ any code following this expression is unreachable [INFO] [stdout] ... [INFO] [stdout] 628 | return Ok(0); [INFO] [stdout] | ^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/pop3.rs:284:13 [INFO] [stdout] | [INFO] [stdout] 284 | _ => { [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/pop3.rs:312:13 [INFO] [stdout] | [INFO] [stdout] 312 | _ => { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/pop3.rs:349:13 [INFO] [stdout] | [INFO] [stdout] 349 | _ => { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/pop3.rs:382:13 [INFO] [stdout] | [INFO] [stdout] 382 | _ => { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/pop3.rs:435:13 [INFO] [stdout] | [INFO] [stdout] 435 | _ => { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: private type `pop3::Response` in public interface (error E0446) [INFO] [stdout] --> src/pop3.rs:49:5 [INFO] [stdout] | [INFO] [stdout] 49 | pub fn print_debug(&mut self, response: &Response){ [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(private_in_public)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #34537 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `set_port` [INFO] [stdout] --> src/tcp.rs:26:12 [INFO] [stdout] | [INFO] [stdout] 26 | pub fn set_port(&mut self, port: u16){ [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `error_handler` [INFO] [stdout] --> src/tcp.rs:78:12 [INFO] [stdout] | [INFO] [stdout] 78 | pub fn error_handler(&mut self, error: MailError) -> Result<(), MailError>{ [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/smtp.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 15 | fn new(code: usize) -> Response{ [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `show_mail_group` [INFO] [stdout] --> src/smtp.rs:358:12 [INFO] [stdout] | [INFO] [stdout] 358 | pub fn show_mail_group(&mut self){ [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `quit` [INFO] [stdout] --> src/smtp.rs:371:12 [INFO] [stdout] | [INFO] [stdout] 371 | pub fn quit(&mut self){ [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `parse_response_group` [INFO] [stdout] --> src/smtp.rs:394:4 [INFO] [stdout] | [INFO] [stdout] 394 | fn parse_response_group(response_group: Vec) -> Result{ [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `is_response_end` [INFO] [stdout] --> src/smtp.rs:409:4 [INFO] [stdout] | [INFO] [stdout] 409 | fn is_response_end(response: String) -> bool{ [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `SMTPResponseNotErrorCodeError` [INFO] [stdout] --> src/util.rs:18:37 [INFO] [stdout] | [INFO] [stdout] 18 | SMTPResponseParseError(String), SMTPResponseNotErrorCodeError(String), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `is_error_tcp_handled` [INFO] [stdout] --> src/util.rs:21:8 [INFO] [stdout] | [INFO] [stdout] 21 | pub fn is_error_tcp_handled(error: MailError) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `trim_ok_result` [INFO] [stdout] --> src/util.rs:30:8 [INFO] [stdout] | [INFO] [stdout] 30 | pub fn trim_ok_result(result: Result) -> Result{ [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `dns_resolve` [INFO] [stdout] --> src/util.rs:42:8 [INFO] [stdout] | [INFO] [stdout] 42 | pub fn dns_resolve(host_name: String) -> Result{ [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `status_query` [INFO] [stdout] --> src/pop3.rs:290:12 [INFO] [stdout] | [INFO] [stdout] 290 | pub fn status_query(&mut self){ [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `mail_info_short` [INFO] [stdout] --> src/pop3.rs:327:12 [INFO] [stdout] | [INFO] [stdout] 327 | pub fn mail_info_short(&mut self, order_number: usize){ [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `display` [INFO] [stdout] --> src/pop3.rs:556:8 [INFO] [stdout] | [INFO] [stdout] 556 | fn display(&self){ [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `check_head_integrity` [INFO] [stdout] --> src/pop3.rs:565:8 [INFO] [stdout] | [INFO] [stdout] 565 | fn check_head_integrity(&self) -> usize{ [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/tcp.rs:60:13 [INFO] [stdout] | [INFO] [stdout] 60 | connection.into_inner().shutdown(Both); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/tcp.rs:67:13 [INFO] [stdout] | [INFO] [stdout] 67 | connection.read_until(b'\n', &mut buf); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/util.rs:70:5 [INFO] [stdout] | [INFO] [stdout] 70 | std::io::stdin().read_line(&mut line); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 25 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: private type `pop3::Response` in public interface (error E0446) [INFO] [stdout] --> src/pop3.rs:49:5 [INFO] [stdout] | [INFO] [stdout] 49 | pub fn print_debug(&mut self, response: &Response){ [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(private_in_public)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #34537 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `set_port` [INFO] [stdout] --> src/tcp.rs:26:12 [INFO] [stdout] | [INFO] [stdout] 26 | pub fn set_port(&mut self, port: u16){ [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `error_handler` [INFO] [stdout] --> src/tcp.rs:78:12 [INFO] [stdout] | [INFO] [stdout] 78 | pub fn error_handler(&mut self, error: MailError) -> Result<(), MailError>{ [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/smtp.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 15 | fn new(code: usize) -> Response{ [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `show_mail_group` [INFO] [stdout] --> src/smtp.rs:358:12 [INFO] [stdout] | [INFO] [stdout] 358 | pub fn show_mail_group(&mut self){ [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `quit` [INFO] [stdout] --> src/smtp.rs:371:12 [INFO] [stdout] | [INFO] [stdout] 371 | pub fn quit(&mut self){ [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `parse_response_group` [INFO] [stdout] --> src/smtp.rs:394:4 [INFO] [stdout] | [INFO] [stdout] 394 | fn parse_response_group(response_group: Vec) -> Result{ [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `is_response_end` [INFO] [stdout] --> src/smtp.rs:409:4 [INFO] [stdout] | [INFO] [stdout] 409 | fn is_response_end(response: String) -> bool{ [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `SMTPResponseNotErrorCodeError` [INFO] [stdout] --> src/util.rs:18:37 [INFO] [stdout] | [INFO] [stdout] 18 | SMTPResponseParseError(String), SMTPResponseNotErrorCodeError(String), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `is_error_tcp_handled` [INFO] [stdout] --> src/util.rs:21:8 [INFO] [stdout] | [INFO] [stdout] 21 | pub fn is_error_tcp_handled(error: MailError) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `trim_ok_result` [INFO] [stdout] --> src/util.rs:30:8 [INFO] [stdout] | [INFO] [stdout] 30 | pub fn trim_ok_result(result: Result) -> Result{ [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `dns_resolve` [INFO] [stdout] --> src/util.rs:42:8 [INFO] [stdout] | [INFO] [stdout] 42 | pub fn dns_resolve(host_name: String) -> Result{ [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `status_query` [INFO] [stdout] --> src/pop3.rs:290:12 [INFO] [stdout] | [INFO] [stdout] 290 | pub fn status_query(&mut self){ [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `mail_info_short` [INFO] [stdout] --> src/pop3.rs:327:12 [INFO] [stdout] | [INFO] [stdout] 327 | pub fn mail_info_short(&mut self, order_number: usize){ [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `display` [INFO] [stdout] --> src/pop3.rs:556:8 [INFO] [stdout] | [INFO] [stdout] 556 | fn display(&self){ [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `check_head_integrity` [INFO] [stdout] --> src/pop3.rs:565:8 [INFO] [stdout] | [INFO] [stdout] 565 | fn check_head_integrity(&self) -> usize{ [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/tcp.rs:60:13 [INFO] [stdout] | [INFO] [stdout] 60 | connection.into_inner().shutdown(Both); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/tcp.rs:67:13 [INFO] [stdout] | [INFO] [stdout] 67 | connection.read_until(b'\n', &mut buf); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/util.rs:70:5 [INFO] [stdout] | [INFO] [stdout] 70 | std::io::stdin().read_line(&mut line); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 25 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 45.56s [INFO] [stderr] Running `cargo check` to verify 2021 [INFO] [stderr] Checking mail_client v0.1.0 (/tmp/fixit) [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/pop3.rs:628:5 [INFO] [stdout] | [INFO] [stdout] 624 | return Ok(counter); [INFO] [stdout] | ------------------ any code following this expression is unreachable [INFO] [stdout] ... [INFO] [stdout] 628 | return Ok(0); [INFO] [stdout] | ^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/pop3.rs:284:13 [INFO] [stdout] | [INFO] [stdout] 284 | _ => { [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/pop3.rs:312:13 [INFO] [stdout] | [INFO] [stdout] 312 | _ => { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/pop3.rs:349:13 [INFO] [stdout] | [INFO] [stdout] 349 | _ => { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/pop3.rs:382:13 [INFO] [stdout] | [INFO] [stdout] 382 | _ => { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/pop3.rs:435:13 [INFO] [stdout] | [INFO] [stdout] 435 | _ => { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/pop3.rs:628:5 [INFO] [stdout] | [INFO] [stdout] 624 | return Ok(counter); [INFO] [stdout] | ------------------ any code following this expression is unreachable [INFO] [stdout] ... [INFO] [stdout] 628 | return Ok(0); [INFO] [stdout] | ^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/pop3.rs:284:13 [INFO] [stdout] | [INFO] [stdout] 284 | _ => { [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/pop3.rs:312:13 [INFO] [stdout] | [INFO] [stdout] 312 | _ => { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/pop3.rs:349:13 [INFO] [stdout] | [INFO] [stdout] 349 | _ => { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/pop3.rs:382:13 [INFO] [stdout] | [INFO] [stdout] 382 | _ => { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/pop3.rs:435:13 [INFO] [stdout] | [INFO] [stdout] 435 | _ => { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: private type `pop3::Response` in public interface (error E0446) [INFO] [stdout] --> src/pop3.rs:49:5 [INFO] [stdout] | [INFO] [stdout] 49 | pub fn print_debug(&mut self, response: &Response){ [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(private_in_public)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #34537 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `set_port` [INFO] [stdout] --> src/tcp.rs:26:12 [INFO] [stdout] | [INFO] [stdout] 26 | pub fn set_port(&mut self, port: u16){ [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `error_handler` [INFO] [stdout] --> src/tcp.rs:78:12 [INFO] [stdout] | [INFO] [stdout] 78 | pub fn error_handler(&mut self, error: MailError) -> Result<(), MailError>{ [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/smtp.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 15 | fn new(code: usize) -> Response{ [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `show_mail_group` [INFO] [stdout] --> src/smtp.rs:358:12 [INFO] [stdout] | [INFO] [stdout] 358 | pub fn show_mail_group(&mut self){ [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `quit` [INFO] [stdout] --> src/smtp.rs:371:12 [INFO] [stdout] | [INFO] [stdout] 371 | pub fn quit(&mut self){ [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `parse_response_group` [INFO] [stdout] --> src/smtp.rs:394:4 [INFO] [stdout] | [INFO] [stdout] 394 | fn parse_response_group(response_group: Vec) -> Result{ [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `is_response_end` [INFO] [stdout] --> src/smtp.rs:409:4 [INFO] [stdout] | [INFO] [stdout] 409 | fn is_response_end(response: String) -> bool{ [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `SMTPResponseNotErrorCodeError` [INFO] [stdout] --> src/util.rs:18:37 [INFO] [stdout] | [INFO] [stdout] 18 | SMTPResponseParseError(String), SMTPResponseNotErrorCodeError(String), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `is_error_tcp_handled` [INFO] [stdout] --> src/util.rs:21:8 [INFO] [stdout] | [INFO] [stdout] 21 | pub fn is_error_tcp_handled(error: MailError) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `trim_ok_result` [INFO] [stdout] --> src/util.rs:30:8 [INFO] [stdout] | [INFO] [stdout] 30 | pub fn trim_ok_result(result: Result) -> Result{ [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `dns_resolve` [INFO] [stdout] --> src/util.rs:42:8 [INFO] [stdout] | [INFO] [stdout] 42 | pub fn dns_resolve(host_name: String) -> Result{ [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `status_query` [INFO] [stdout] --> src/pop3.rs:290:12 [INFO] [stdout] | [INFO] [stdout] 290 | pub fn status_query(&mut self){ [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `mail_info_short` [INFO] [stdout] --> src/pop3.rs:327:12 [INFO] [stdout] | [INFO] [stdout] 327 | pub fn mail_info_short(&mut self, order_number: usize){ [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `display` [INFO] [stdout] --> src/pop3.rs:556:8 [INFO] [stdout] | [INFO] [stdout] 556 | fn display(&self){ [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `check_head_integrity` [INFO] [stdout] --> src/pop3.rs:565:8 [INFO] [stdout] | [INFO] [stdout] 565 | fn check_head_integrity(&self) -> usize{ [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/tcp.rs:60:13 [INFO] [stdout] | [INFO] [stdout] 60 | connection.into_inner().shutdown(Both); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/tcp.rs:67:13 [INFO] [stdout] | [INFO] [stdout] 67 | connection.read_until(b'\n', &mut buf); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/util.rs:70:5 [INFO] [stdout] | [INFO] [stdout] 70 | std::io::stdin().read_line(&mut line); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 25 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: private type `pop3::Response` in public interface (error E0446) [INFO] [stdout] --> src/pop3.rs:49:5 [INFO] [stdout] | [INFO] [stdout] 49 | pub fn print_debug(&mut self, response: &Response){ [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(private_in_public)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #34537 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `set_port` [INFO] [stdout] --> src/tcp.rs:26:12 [INFO] [stdout] | [INFO] [stdout] 26 | pub fn set_port(&mut self, port: u16){ [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `error_handler` [INFO] [stdout] --> src/tcp.rs:78:12 [INFO] [stdout] | [INFO] [stdout] 78 | pub fn error_handler(&mut self, error: MailError) -> Result<(), MailError>{ [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/smtp.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 15 | fn new(code: usize) -> Response{ [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `show_mail_group` [INFO] [stdout] --> src/smtp.rs:358:12 [INFO] [stdout] | [INFO] [stdout] 358 | pub fn show_mail_group(&mut self){ [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `quit` [INFO] [stdout] --> src/smtp.rs:371:12 [INFO] [stdout] | [INFO] [stdout] 371 | pub fn quit(&mut self){ [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `parse_response_group` [INFO] [stdout] --> src/smtp.rs:394:4 [INFO] [stdout] | [INFO] [stdout] 394 | fn parse_response_group(response_group: Vec) -> Result{ [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `is_response_end` [INFO] [stdout] --> src/smtp.rs:409:4 [INFO] [stdout] | [INFO] [stdout] 409 | fn is_response_end(response: String) -> bool{ [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `SMTPResponseNotErrorCodeError` [INFO] [stdout] --> src/util.rs:18:37 [INFO] [stdout] | [INFO] [stdout] 18 | SMTPResponseParseError(String), SMTPResponseNotErrorCodeError(String), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `is_error_tcp_handled` [INFO] [stdout] --> src/util.rs:21:8 [INFO] [stdout] | [INFO] [stdout] 21 | pub fn is_error_tcp_handled(error: MailError) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `trim_ok_result` [INFO] [stdout] --> src/util.rs:30:8 [INFO] [stdout] | [INFO] [stdout] 30 | pub fn trim_ok_result(result: Result) -> Result{ [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `dns_resolve` [INFO] [stdout] --> src/util.rs:42:8 [INFO] [stdout] | [INFO] [stdout] 42 | pub fn dns_resolve(host_name: String) -> Result{ [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `status_query` [INFO] [stdout] --> src/pop3.rs:290:12 [INFO] [stdout] | [INFO] [stdout] 290 | pub fn status_query(&mut self){ [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `mail_info_short` [INFO] [stdout] --> src/pop3.rs:327:12 [INFO] [stdout] | [INFO] [stdout] 327 | pub fn mail_info_short(&mut self, order_number: usize){ [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `display` [INFO] [stdout] --> src/pop3.rs:556:8 [INFO] [stdout] | [INFO] [stdout] 556 | fn display(&self){ [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `check_head_integrity` [INFO] [stdout] --> src/pop3.rs:565:8 [INFO] [stdout] | [INFO] [stdout] 565 | fn check_head_integrity(&self) -> usize{ [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/tcp.rs:60:13 [INFO] [stdout] | [INFO] [stdout] 60 | connection.into_inner().shutdown(Both); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/tcp.rs:67:13 [INFO] [stdout] | [INFO] [stdout] 67 | connection.read_until(b'\n', &mut buf); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/util.rs:70:5 [INFO] [stdout] | [INFO] [stdout] 70 | std::io::stdin().read_line(&mut line); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 25 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.75s [INFO] running `Command { std: "docker" "inspect" "1dfb8d4001a3fe7fb98b20d0b00498a5a316eb44940ec93d5367c481acdbbf49", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1dfb8d4001a3fe7fb98b20d0b00498a5a316eb44940ec93d5367c481acdbbf49", kill_on_drop: false }` [INFO] [stdout] 1dfb8d4001a3fe7fb98b20d0b00498a5a316eb44940ec93d5367c481acdbbf49