[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] testing madolchepalooza/rust_mail_client against beta-2022-04-10 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmadolchepalooza%2Frust_mail_client" "/workspace/builds/worker-28/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-28/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/madolchepalooza/rust_mail_client on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-28/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" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] bd11f1ff5e7c5b90f04f8da7b8a36eb4a27dbafd8772439e9635913158a0af4f [INFO] running `Command { std: "docker" "start" "-a" "bd11f1ff5e7c5b90f04f8da7b8a36eb4a27dbafd8772439e9635913158a0af4f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bd11f1ff5e7c5b90f04f8da7b8a36eb4a27dbafd8772439e9635913158a0af4f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bd11f1ff5e7c5b90f04f8da7b8a36eb4a27dbafd8772439e9635913158a0af4f", kill_on_drop: false }` [INFO] [stdout] bd11f1ff5e7c5b90f04f8da7b8a36eb4a27dbafd8772439e9635913158a0af4f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 34266be7afdfdef0c10e78660bba40839ed8dddb40778a328f4051cc942ca2ce [INFO] running `Command { std: "docker" "start" "-a" "34266be7afdfdef0c10e78660bba40839ed8dddb40778a328f4051cc942ca2ce", kill_on_drop: false }` [INFO] [stderr] warning: mail_client v0.1.0 (/opt/rustwide/workdir) ignoring invalid dependency `trust-dns` which is missing a lib target [INFO] [stderr] Compiling libc v0.2.71 [INFO] [stderr] Compiling proc-macro2 v1.0.18 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.33 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling pin-project-internal v0.4.22 [INFO] [stderr] Compiling proc-macro-nested v0.1.6 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling slab v0.4.2 [INFO] [stderr] Compiling futures-core v0.3.5 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling once_cell v1.4.0 [INFO] [stderr] Compiling futures-sink v0.3.5 [INFO] [stderr] Compiling proc-macro-hack v0.5.16 [INFO] [stderr] Compiling encoding_index_tests v0.1.4 [INFO] [stderr] Compiling pin-utils v0.1.0 [INFO] [stderr] Compiling serde_derive v1.0.114 [INFO] [stderr] Compiling tinyvec v0.3.3 [INFO] [stderr] Compiling futures-io v0.3.5 [INFO] [stderr] Compiling matches v0.1.8 [INFO] [stderr] Compiling adler32 v1.1.0 [INFO] [stderr] Compiling serde v1.0.114 [INFO] [stderr] Compiling unicode-segmentation v1.6.0 [INFO] [stderr] Compiling gimli v0.21.0 [INFO] [stderr] Compiling ppv-lite86 v0.2.8 [INFO] [stderr] Compiling pin-project-lite v0.1.7 [INFO] [stderr] Compiling bytes v0.5.5 [INFO] [stderr] Compiling rustc-demangle v0.1.16 [INFO] [stderr] Compiling percent-encoding v2.1.0 [INFO] [stderr] Compiling object v0.20.0 [INFO] [stderr] Compiling smallvec v1.4.0 [INFO] [stderr] Compiling data-encoding v2.2.1 [INFO] [stderr] Compiling match_cfg v0.1.0 [INFO] [stderr] Compiling endian-type v0.1.2 [INFO] [stderr] Compiling nibble_vec v0.0.4 [INFO] [stderr] Compiling linked-hash-map v0.5.3 [INFO] [stderr] Compiling quick-error v1.2.3 [INFO] [stderr] Compiling regex-syntax v0.6.18 [INFO] [stderr] Compiling base64 v0.12.3 [INFO] [stderr] Compiling thread_local v1.0.1 [INFO] [stderr] Compiling unicode-bidi v0.3.4 [INFO] [stderr] Compiling encoding-index-korean v1.20141219.5 [INFO] [stderr] Compiling encoding-index-singlebyte v1.20141219.5 [INFO] [stderr] Compiling encoding-index-japanese v1.20141219.5 [INFO] [stderr] Compiling encoding-index-tradchinese v1.20141219.5 [INFO] [stderr] Compiling encoding-index-simpchinese v1.20141219.5 [INFO] [stderr] Compiling futures-task v0.3.5 [INFO] [stderr] Compiling miniz_oxide v0.3.7 [INFO] [stderr] Compiling lru-cache v0.1.2 [INFO] [stderr] Compiling futures-channel v0.3.5 [INFO] [stderr] Compiling unicode-normalization v0.1.13 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Compiling radix_trie v0.1.6 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling num-integer v0.1.43 [INFO] [stderr] Compiling encoding v0.2.33 [INFO] [stderr] Compiling aho-corasick v0.7.13 [INFO] [stderr] Compiling idna v0.2.0 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Compiling net2 v0.2.34 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling num_cpus v1.13.0 [INFO] [stderr] Compiling hostname v0.3.1 [INFO] [stderr] Compiling time v0.1.43 [INFO] [stderr] Compiling resolv-conf v0.6.3 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling url v2.1.1 [INFO] [stderr] Compiling mio v0.6.22 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling addr2line v0.12.2 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling regex v1.3.9 [INFO] [stderr] Compiling backtrace v0.3.49 [INFO] [stderr] Compiling tokio v0.2.21 [INFO] [stderr] Compiling chrono v0.4.12 [INFO] [stderr] Compiling futures-macro v0.3.5 [INFO] [stderr] Compiling thiserror-impl v1.0.20 [INFO] [stderr] Compiling async-trait v0.1.36 [INFO] [stderr] Compiling enum-as-inner v0.3.2 [INFO] [stderr] Compiling thiserror v1.0.20 [INFO] [stderr] Compiling pin-project v0.4.22 [INFO] [stderr] Compiling futures-util v0.3.5 [INFO] [stderr] Compiling futures-executor v0.3.5 [INFO] [stderr] Compiling futures v0.3.5 [INFO] [stderr] Compiling trust-dns-proto v0.19.5 [INFO] [stderr] Compiling trust-dns-client v0.19.5 [INFO] [stderr] Compiling trust-dns-resolver v0.19.5 [INFO] [stderr] Compiling mail_client v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `trust_dns_resolver::config` [INFO] [stdout] --> src/util.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use trust_dns_resolver::config; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `trust_dns_resolver::proto::rr::record_data::RData::OPT` [INFO] [stdout] --> src/util.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use trust_dns_resolver::proto::rr::record_data::RData::OPT; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `regex::Regex` [INFO] [stdout] --> src/util.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use regex::Regex; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::pop3::State::TCPConnected` [INFO] [stdout] --> src/pop3.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use crate::pop3::State::TCPConnected; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::ops::Add` [INFO] [stdout] --> src/pop3.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use std::ops::Add; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Shutdown`, `TcpStream` [INFO] [stdout] --> src/main.rs:9:16 [INFO] [stdout] | [INFO] [stdout] 9 | use std::net::{TcpStream, Shutdown}; [INFO] [stdout] | ^^^^^^^^^ ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `BufRead`, `BufReader`, `Read`, `Write` [INFO] [stdout] --> src/main.rs:10:15 [INFO] [stdout] | [INFO] [stdout] 10 | use std::io::{Write, Read, BufReader, BufRead}; [INFO] [stdout] | ^^^^^ ^^^^ ^^^^^^^^^ ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `chrono::prelude::*` [INFO] [stdout] --> src/main.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | use chrono::prelude::*; [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: unused variable: `k` [INFO] [stdout] --> src/tcp.rs:48:30 [INFO] [stdout] | [INFO] [stdout] 48 | return if let Ok(k) = connection.get_mut().write(content.as_bytes()) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_k` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `from` [INFO] [stdout] --> src/smtp.rs:46:21 [INFO] [stdout] | [INFO] [stdout] 46 | if let Some(from) = &self.from{ [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_from` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `to` [INFO] [stdout] --> src/smtp.rs:47:25 [INFO] [stdout] | [INFO] [stdout] 47 | if let Some(to) = &self.to{ [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_to` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `subject` [INFO] [stdout] --> src/smtp.rs:48:29 [INFO] [stdout] | [INFO] [stdout] 48 | if let Some(subject) = &self.subject{ [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_subject` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `content` [INFO] [stdout] --> src/smtp.rs:49:33 [INFO] [stdout] | [INFO] [stdout] 49 | if let Some(content) = &self.content{ [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_content` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `error` [INFO] [stdout] --> src/pop3.rs:715:38 [INFO] [stdout] | [INFO] [stdout] 715 | }else if let Err(error) = from_utf8_result{ [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_error` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `error` [INFO] [stdout] --> src/pop3.rs:718:34 [INFO] [stdout] | [INFO] [stdout] 718 | }else if let Err(error) = decode_result{ [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_error` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `error` [INFO] [stdout] --> src/pop3.rs:734:38 [INFO] [stdout] | [INFO] [stdout] 734 | }else if let Err(error) = from_utf8_result{ [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_error` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `error` [INFO] [stdout] --> src/pop3.rs:737:34 [INFO] [stdout] | [INFO] [stdout] 737 | }else if let Err(error) = decode_result{ [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_error` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/pop3.rs:57:16 [INFO] [stdout] | [INFO] [stdout] 57 | Ok(s) => { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `error` [INFO] [stdout] --> src/pop3.rs:308:34 [INFO] [stdout] | [INFO] [stdout] 308 | }else if let Err(error) = status_result{ [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_error` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `error` [INFO] [stdout] --> src/pop3.rs:345:34 [INFO] [stdout] | [INFO] [stdout] 345 | }else if let Err(error) = list_result{ [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_error` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ok_res` [INFO] [stdout] --> src/pop3.rs:445:33 [INFO] [stdout] | [INFO] [stdout] 445 | if let Response::Ok(ok_res) = response{ [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_ok_res` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ok_res` [INFO] [stdout] --> src/pop3.rs:470:33 [INFO] [stdout] | [INFO] [stdout] 470 | if let Response::Ok(ok_res) = response{ [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_ok_res` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ok_res` [INFO] [stdout] --> src/pop3.rs:485:33 [INFO] [stdout] | [INFO] [stdout] 485 | if let Response::Ok(ok_res) = response{ [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_ok_res` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/pop3.rs:538:21 [INFO] [stdout] | [INFO] [stdout] 538 | if let Some(s) = &self.time{ [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/pop3.rs:539:25 [INFO] [stdout] | [INFO] [stdout] 539 | if let Some(s) = &self.from{ [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/pop3.rs:540:29 [INFO] [stdout] | [INFO] [stdout] 540 | if let Some(s) = &self.to{ [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/pop3.rs:541:33 [INFO] [stdout] | [INFO] [stdout] 541 | if let Some(s) = &self.plain{ [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/pop3.rs:542:37 [INFO] [stdout] | [INFO] [stdout] 542 | if let Some(s) = &self.html{ [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/pop3.rs:586:13 [INFO] [stdout] | [INFO] [stdout] 586 | let mut ok_cap = regex_ok.captures(&response); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/pop3.rs:590:13 [INFO] [stdout] | [INFO] [stdout] 590 | let mut err_cap = regex_err.captures(&response); [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/pop3.rs:621:13 [INFO] [stdout] | [INFO] [stdout] 621 | let mut cap = octets_count_regex.captures(&response); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/pop3.rs:641:9 [INFO] [stdout] | [INFO] [stdout] 641 | let mut lines1 = lines.clone(); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/pop3.rs:644:17 [INFO] [stdout] | [INFO] [stdout] 644 | let mut cap = time_regex.captures(line).unwrap(); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/pop3.rs:647:17 [INFO] [stdout] | [INFO] [stdout] 647 | let mut cap = from_regex.captures(line).unwrap(); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/pop3.rs:650:17 [INFO] [stdout] | [INFO] [stdout] 650 | let mut cap = to_regex.captures(line).unwrap(); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/pop3.rs:653:17 [INFO] [stdout] | [INFO] [stdout] 653 | let mut cap = subject_regex.captures(line).unwrap(); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/pop3.rs:656:17 [INFO] [stdout] | [INFO] [stdout] 656 | let mut cap = boundary_regex.captures(line).unwrap(); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/pop3.rs:660:17 [INFO] [stdout] | [INFO] [stdout] 660 | let mut cap = to1_regex.captures(line).unwrap(); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [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: field is never read: `group` [INFO] [stdout] --> src/smtp.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | group: Vec [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Response` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/smtp.rs:8:10 [INFO] [stdout] | [INFO] [stdout] 8 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [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] note: `MailError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/util.rs:9:10 [INFO] [stdout] | [INFO] [stdout] 9 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [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: 64 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 26.33s [INFO] running `Command { std: "docker" "inspect" "34266be7afdfdef0c10e78660bba40839ed8dddb40778a328f4051cc942ca2ce", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "34266be7afdfdef0c10e78660bba40839ed8dddb40778a328f4051cc942ca2ce", kill_on_drop: false }` [INFO] [stdout] 34266be7afdfdef0c10e78660bba40839ed8dddb40778a328f4051cc942ca2ce [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] fff1c70ff3bc5a5edec8afd491356b45c35fd3098770691791432961e78edc67 [INFO] running `Command { std: "docker" "start" "-a" "fff1c70ff3bc5a5edec8afd491356b45c35fd3098770691791432961e78edc67", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: mail_client v0.1.0 (/opt/rustwide/workdir) ignoring invalid dependency `trust-dns` which is missing a lib target [INFO] [stderr] Compiling mail_client v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `trust_dns_resolver::config` [INFO] [stdout] --> src/util.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use trust_dns_resolver::config; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `trust_dns_resolver::proto::rr::record_data::RData::OPT` [INFO] [stdout] --> src/util.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use trust_dns_resolver::proto::rr::record_data::RData::OPT; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `regex::Regex` [INFO] [stdout] --> src/util.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use regex::Regex; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::pop3::State::TCPConnected` [INFO] [stdout] --> src/pop3.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use crate::pop3::State::TCPConnected; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::ops::Add` [INFO] [stdout] --> src/pop3.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use std::ops::Add; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Shutdown`, `TcpStream` [INFO] [stdout] --> src/main.rs:9:16 [INFO] [stdout] | [INFO] [stdout] 9 | use std::net::{TcpStream, Shutdown}; [INFO] [stdout] | ^^^^^^^^^ ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `BufRead`, `BufReader`, `Read`, `Write` [INFO] [stdout] --> src/main.rs:10:15 [INFO] [stdout] | [INFO] [stdout] 10 | use std::io::{Write, Read, BufReader, BufRead}; [INFO] [stdout] | ^^^^^ ^^^^ ^^^^^^^^^ ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `chrono::prelude::*` [INFO] [stdout] --> src/main.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | use chrono::prelude::*; [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: unused variable: `k` [INFO] [stdout] --> src/tcp.rs:48:30 [INFO] [stdout] | [INFO] [stdout] 48 | return if let Ok(k) = connection.get_mut().write(content.as_bytes()) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_k` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `from` [INFO] [stdout] --> src/smtp.rs:46:21 [INFO] [stdout] | [INFO] [stdout] 46 | if let Some(from) = &self.from{ [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_from` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `to` [INFO] [stdout] --> src/smtp.rs:47:25 [INFO] [stdout] | [INFO] [stdout] 47 | if let Some(to) = &self.to{ [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_to` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `subject` [INFO] [stdout] --> src/smtp.rs:48:29 [INFO] [stdout] | [INFO] [stdout] 48 | if let Some(subject) = &self.subject{ [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_subject` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `content` [INFO] [stdout] --> src/smtp.rs:49:33 [INFO] [stdout] | [INFO] [stdout] 49 | if let Some(content) = &self.content{ [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_content` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `error` [INFO] [stdout] --> src/pop3.rs:715:38 [INFO] [stdout] | [INFO] [stdout] 715 | }else if let Err(error) = from_utf8_result{ [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_error` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `error` [INFO] [stdout] --> src/pop3.rs:718:34 [INFO] [stdout] | [INFO] [stdout] 718 | }else if let Err(error) = decode_result{ [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_error` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `error` [INFO] [stdout] --> src/pop3.rs:734:38 [INFO] [stdout] | [INFO] [stdout] 734 | }else if let Err(error) = from_utf8_result{ [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_error` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `error` [INFO] [stdout] --> src/pop3.rs:737:34 [INFO] [stdout] | [INFO] [stdout] 737 | }else if let Err(error) = decode_result{ [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_error` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/pop3.rs:57:16 [INFO] [stdout] | [INFO] [stdout] 57 | Ok(s) => { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `error` [INFO] [stdout] --> src/pop3.rs:308:34 [INFO] [stdout] | [INFO] [stdout] 308 | }else if let Err(error) = status_result{ [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_error` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `error` [INFO] [stdout] --> src/pop3.rs:345:34 [INFO] [stdout] | [INFO] [stdout] 345 | }else if let Err(error) = list_result{ [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_error` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ok_res` [INFO] [stdout] --> src/pop3.rs:445:33 [INFO] [stdout] | [INFO] [stdout] 445 | if let Response::Ok(ok_res) = response{ [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_ok_res` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ok_res` [INFO] [stdout] --> src/pop3.rs:470:33 [INFO] [stdout] | [INFO] [stdout] 470 | if let Response::Ok(ok_res) = response{ [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_ok_res` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ok_res` [INFO] [stdout] --> src/pop3.rs:485:33 [INFO] [stdout] | [INFO] [stdout] 485 | if let Response::Ok(ok_res) = response{ [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_ok_res` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/pop3.rs:538:21 [INFO] [stdout] | [INFO] [stdout] 538 | if let Some(s) = &self.time{ [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/pop3.rs:539:25 [INFO] [stdout] | [INFO] [stdout] 539 | if let Some(s) = &self.from{ [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/pop3.rs:540:29 [INFO] [stdout] | [INFO] [stdout] 540 | if let Some(s) = &self.to{ [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/pop3.rs:541:33 [INFO] [stdout] | [INFO] [stdout] 541 | if let Some(s) = &self.plain{ [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/pop3.rs:542:37 [INFO] [stdout] | [INFO] [stdout] 542 | if let Some(s) = &self.html{ [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/pop3.rs:586:13 [INFO] [stdout] | [INFO] [stdout] 586 | let mut ok_cap = regex_ok.captures(&response); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/pop3.rs:590:13 [INFO] [stdout] | [INFO] [stdout] 590 | let mut err_cap = regex_err.captures(&response); [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/pop3.rs:621:13 [INFO] [stdout] | [INFO] [stdout] 621 | let mut cap = octets_count_regex.captures(&response); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/pop3.rs:641:9 [INFO] [stdout] | [INFO] [stdout] 641 | let mut lines1 = lines.clone(); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/pop3.rs:644:17 [INFO] [stdout] | [INFO] [stdout] 644 | let mut cap = time_regex.captures(line).unwrap(); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/pop3.rs:647:17 [INFO] [stdout] | [INFO] [stdout] 647 | let mut cap = from_regex.captures(line).unwrap(); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/pop3.rs:650:17 [INFO] [stdout] | [INFO] [stdout] 650 | let mut cap = to_regex.captures(line).unwrap(); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/pop3.rs:653:17 [INFO] [stdout] | [INFO] [stdout] 653 | let mut cap = subject_regex.captures(line).unwrap(); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/pop3.rs:656:17 [INFO] [stdout] | [INFO] [stdout] 656 | let mut cap = boundary_regex.captures(line).unwrap(); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/pop3.rs:660:17 [INFO] [stdout] | [INFO] [stdout] 660 | let mut cap = to1_regex.captures(line).unwrap(); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [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: field is never read: `group` [INFO] [stdout] --> src/smtp.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | group: Vec [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Response` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/smtp.rs:8:10 [INFO] [stdout] | [INFO] [stdout] 8 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [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] note: `MailError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/util.rs:9:10 [INFO] [stdout] | [INFO] [stdout] 9 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [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: 64 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.79s [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/mail_client-8ca6ff88034f0e32) [INFO] running `Command { std: "docker" "inspect" "fff1c70ff3bc5a5edec8afd491356b45c35fd3098770691791432961e78edc67", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fff1c70ff3bc5a5edec8afd491356b45c35fd3098770691791432961e78edc67", kill_on_drop: false }` [INFO] [stdout] fff1c70ff3bc5a5edec8afd491356b45c35fd3098770691791432961e78edc67 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] f223790e78178e85aa59c5ee29c500646922e0e23078d6ac664317a35ed12e1d [INFO] running `Command { std: "docker" "start" "-a" "f223790e78178e85aa59c5ee29c500646922e0e23078d6ac664317a35ed12e1d", kill_on_drop: false }` [INFO] [stderr] warning: mail_client v0.1.0 (/opt/rustwide/workdir) ignoring invalid dependency `trust-dns` which is missing a lib target [INFO] [stderr] warning: unused import: `trust_dns_resolver::config` [INFO] [stderr] --> src/util.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use trust_dns_resolver::config; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `trust_dns_resolver::proto::rr::record_data::RData::OPT` [INFO] [stderr] --> src/util.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use trust_dns_resolver::proto::rr::record_data::RData::OPT; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `regex::Regex` [INFO] [stderr] --> src/util.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use regex::Regex; [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `crate::pop3::State::TCPConnected` [INFO] [stderr] --> src/pop3.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use crate::pop3::State::TCPConnected; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::ops::Add` [INFO] [stderr] --> src/pop3.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | use std::ops::Add; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Shutdown`, `TcpStream` [INFO] [stderr] --> src/main.rs:9:16 [INFO] [stderr] | [INFO] [stderr] 9 | use std::net::{TcpStream, Shutdown}; [INFO] [stderr] | ^^^^^^^^^ ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `BufRead`, `BufReader`, `Read`, `Write` [INFO] [stderr] --> src/main.rs:10:15 [INFO] [stderr] | [INFO] [stderr] 10 | use std::io::{Write, Read, BufReader, BufRead}; [INFO] [stderr] | ^^^^^ ^^^^ ^^^^^^^^^ ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `chrono::prelude::*` [INFO] [stderr] --> src/main.rs:12:5 [INFO] [stderr] | [INFO] [stderr] 12 | use chrono::prelude::*; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unreachable statement [INFO] [stderr] --> src/pop3.rs:628:5 [INFO] [stderr] | [INFO] [stderr] 624 | return Ok(counter); [INFO] [stderr] | ------------------ any code following this expression is unreachable [INFO] [stderr] ... [INFO] [stderr] 628 | return Ok(0); [INFO] [stderr] | ^^^^^^^^^^^^^ unreachable statement [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unreachable pattern [INFO] [stderr] --> src/pop3.rs:284:13 [INFO] [stderr] | [INFO] [stderr] 284 | _ => { [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unreachable pattern [INFO] [stderr] --> src/pop3.rs:312:13 [INFO] [stderr] | [INFO] [stderr] 312 | _ => { [INFO] [stderr] | ^ [INFO] [stderr] [INFO] [stderr] warning: unreachable pattern [INFO] [stderr] --> src/pop3.rs:349:13 [INFO] [stderr] | [INFO] [stderr] 349 | _ => { [INFO] [stderr] | ^ [INFO] [stderr] [INFO] [stderr] warning: unreachable pattern [INFO] [stderr] --> src/pop3.rs:382:13 [INFO] [stderr] | [INFO] [stderr] 382 | _ => { [INFO] [stderr] | ^ [INFO] [stderr] [INFO] [stderr] warning: unreachable pattern [INFO] [stderr] --> src/pop3.rs:435:13 [INFO] [stderr] | [INFO] [stderr] 435 | _ => { [INFO] [stderr] | ^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `k` [INFO] [stderr] --> src/tcp.rs:48:30 [INFO] [stderr] | [INFO] [stderr] 48 | return if let Ok(k) = connection.get_mut().write(content.as_bytes()) { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_k` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `from` [INFO] [stderr] --> src/smtp.rs:46:21 [INFO] [stderr] | [INFO] [stderr] 46 | if let Some(from) = &self.from{ [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_from` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `to` [INFO] [stderr] --> src/smtp.rs:47:25 [INFO] [stderr] | [INFO] [stderr] 47 | if let Some(to) = &self.to{ [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_to` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `subject` [INFO] [stderr] --> src/smtp.rs:48:29 [INFO] [stderr] | [INFO] [stderr] 48 | if let Some(subject) = &self.subject{ [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_subject` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `content` [INFO] [stderr] --> src/smtp.rs:49:33 [INFO] [stderr] | [INFO] [stderr] 49 | if let Some(content) = &self.content{ [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_content` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `error` [INFO] [stderr] --> src/pop3.rs:715:38 [INFO] [stderr] | [INFO] [stderr] 715 | }else if let Err(error) = from_utf8_result{ [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_error` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `error` [INFO] [stderr] --> src/pop3.rs:718:34 [INFO] [stderr] | [INFO] [stderr] 718 | }else if let Err(error) = decode_result{ [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_error` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `error` [INFO] [stderr] --> src/pop3.rs:734:38 [INFO] [stderr] | [INFO] [stderr] 734 | }else if let Err(error) = from_utf8_result{ [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_error` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `error` [INFO] [stderr] --> src/pop3.rs:737:34 [INFO] [stderr] | [INFO] [stderr] 737 | }else if let Err(error) = decode_result{ [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_error` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s` [INFO] [stderr] --> src/pop3.rs:57:16 [INFO] [stderr] | [INFO] [stderr] 57 | Ok(s) => { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `error` [INFO] [stderr] --> src/pop3.rs:308:34 [INFO] [stderr] | [INFO] [stderr] 308 | }else if let Err(error) = status_result{ [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_error` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `error` [INFO] [stderr] --> src/pop3.rs:345:34 [INFO] [stderr] | [INFO] [stderr] 345 | }else if let Err(error) = list_result{ [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_error` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ok_res` [INFO] [stderr] --> src/pop3.rs:445:33 [INFO] [stderr] | [INFO] [stderr] 445 | if let Response::Ok(ok_res) = response{ [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_ok_res` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ok_res` [INFO] [stderr] --> src/pop3.rs:470:33 [INFO] [stderr] | [INFO] [stderr] 470 | if let Response::Ok(ok_res) = response{ [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_ok_res` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ok_res` [INFO] [stderr] --> src/pop3.rs:485:33 [INFO] [stderr] | [INFO] [stderr] 485 | if let Response::Ok(ok_res) = response{ [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_ok_res` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s` [INFO] [stderr] --> src/pop3.rs:538:21 [INFO] [stderr] | [INFO] [stderr] 538 | if let Some(s) = &self.time{ [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s` [INFO] [stderr] --> src/pop3.rs:539:25 [INFO] [stderr] | [INFO] [stderr] 539 | if let Some(s) = &self.from{ [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s` [INFO] [stderr] --> src/pop3.rs:540:29 [INFO] [stderr] | [INFO] [stderr] 540 | if let Some(s) = &self.to{ [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s` [INFO] [stderr] --> src/pop3.rs:541:33 [INFO] [stderr] | [INFO] [stderr] 541 | if let Some(s) = &self.plain{ [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s` [INFO] [stderr] --> src/pop3.rs:542:37 [INFO] [stderr] | [INFO] [stderr] 542 | if let Some(s) = &self.html{ [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/pop3.rs:586:13 [INFO] [stderr] | [INFO] [stderr] 586 | let mut ok_cap = regex_ok.captures(&response); [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/pop3.rs:590:13 [INFO] [stderr] | [INFO] [stderr] 590 | let mut err_cap = regex_err.captures(&response); [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/pop3.rs:621:13 [INFO] [stderr] | [INFO] [stderr] 621 | let mut cap = octets_count_regex.captures(&response); [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/pop3.rs:641:9 [INFO] [stderr] | [INFO] [stderr] 641 | let mut lines1 = lines.clone(); [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/pop3.rs:644:17 [INFO] [stderr] | [INFO] [stderr] 644 | let mut cap = time_regex.captures(line).unwrap(); [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/pop3.rs:647:17 [INFO] [stderr] | [INFO] [stderr] 647 | let mut cap = from_regex.captures(line).unwrap(); [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/pop3.rs:650:17 [INFO] [stderr] | [INFO] [stderr] 650 | let mut cap = to_regex.captures(line).unwrap(); [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/pop3.rs:653:17 [INFO] [stderr] | [INFO] [stderr] 653 | let mut cap = subject_regex.captures(line).unwrap(); [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/pop3.rs:656:17 [INFO] [stderr] | [INFO] [stderr] 656 | let mut cap = boundary_regex.captures(line).unwrap(); [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/pop3.rs:660:17 [INFO] [stderr] | [INFO] [stderr] 660 | let mut cap = to1_regex.captures(line).unwrap(); [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: private type `pop3::Response` in public interface (error E0446) [INFO] [stderr] --> src/pop3.rs:49:5 [INFO] [stderr] | [INFO] [stderr] 49 | pub fn print_debug(&mut self, response: &Response){ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(private_in_public)]` on by default [INFO] [stderr] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stderr] = note: for more information, see issue #34537 [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `set_port` [INFO] [stderr] --> src/tcp.rs:26:12 [INFO] [stderr] | [INFO] [stderr] 26 | pub fn set_port(&mut self, port: u16){ [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `error_handler` [INFO] [stderr] --> src/tcp.rs:78:12 [INFO] [stderr] | [INFO] [stderr] 78 | pub fn error_handler(&mut self, error: MailError) -> Result<(), MailError>{ [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `group` [INFO] [stderr] --> src/smtp.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | group: Vec [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: `Response` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> src/smtp.rs:8:10 [INFO] [stderr] | [INFO] [stderr] 8 | #[derive(Debug)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/smtp.rs:15:8 [INFO] [stderr] | [INFO] [stderr] 15 | fn new(code: usize) -> Response{ [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `show_mail_group` [INFO] [stderr] --> src/smtp.rs:358:12 [INFO] [stderr] | [INFO] [stderr] 358 | pub fn show_mail_group(&mut self){ [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `quit` [INFO] [stderr] --> src/smtp.rs:371:12 [INFO] [stderr] | [INFO] [stderr] 371 | pub fn quit(&mut self){ [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `parse_response_group` [INFO] [stderr] --> src/smtp.rs:394:4 [INFO] [stderr] | [INFO] [stderr] 394 | fn parse_response_group(response_group: Vec) -> Result{ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `is_response_end` [INFO] [stderr] --> src/smtp.rs:409:4 [INFO] [stderr] | [INFO] [stderr] 409 | fn is_response_end(response: String) -> bool{ [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `SMTPResponseNotErrorCodeError` [INFO] [stderr] --> src/util.rs:18:37 [INFO] [stderr] | [INFO] [stderr] 18 | SMTPResponseParseError(String), SMTPResponseNotErrorCodeError(String), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: `MailError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> src/util.rs:9:10 [INFO] [stderr] | [INFO] [stderr] 9 | #[derive(Debug)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: function is never used: `is_error_tcp_handled` [INFO] [stderr] --> src/util.rs:21:8 [INFO] [stderr] | [INFO] [stderr] 21 | pub fn is_error_tcp_handled(error: MailError) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `trim_ok_result` [INFO] [stderr] --> src/util.rs:30:8 [INFO] [stderr] | [INFO] [stderr] 30 | pub fn trim_ok_result(result: Result) -> Result{ [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `dns_resolve` [INFO] [stderr] --> src/util.rs:42:8 [INFO] [stderr] | [INFO] [stderr] 42 | pub fn dns_resolve(host_name: String) -> Result{ [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `status_query` [INFO] [stderr] --> src/pop3.rs:290:12 [INFO] [stderr] | [INFO] [stderr] 290 | pub fn status_query(&mut self){ [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `mail_info_short` [INFO] [stderr] --> src/pop3.rs:327:12 [INFO] [stderr] | [INFO] [stderr] 327 | pub fn mail_info_short(&mut self, order_number: usize){ [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `display` [INFO] [stderr] --> src/pop3.rs:556:8 [INFO] [stderr] | [INFO] [stderr] 556 | fn display(&self){ [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `check_head_integrity` [INFO] [stderr] --> src/pop3.rs:565:8 [INFO] [stderr] | [INFO] [stderr] 565 | fn check_head_integrity(&self) -> usize{ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/tcp.rs:60:13 [INFO] [stderr] | [INFO] [stderr] 60 | connection.into_inner().shutdown(Both); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/tcp.rs:67:13 [INFO] [stderr] | [INFO] [stderr] 67 | connection.read_until(b'\n', &mut buf); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/util.rs:70:5 [INFO] [stderr] | [INFO] [stderr] 70 | std::io::stdin().read_line(&mut line); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: `mail_client` (bin "mail_client" test) generated 64 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.08s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/mail_client-8ca6ff88034f0e32) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "f223790e78178e85aa59c5ee29c500646922e0e23078d6ac664317a35ed12e1d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f223790e78178e85aa59c5ee29c500646922e0e23078d6ac664317a35ed12e1d", kill_on_drop: false }` [INFO] [stdout] f223790e78178e85aa59c5ee29c500646922e0e23078d6ac664317a35ed12e1d