[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] dd158f9ce5f1219d02a6f6258fc3dde0425a8794 [INFO] testing madolchepalooza/rust_mail_client against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmadolchepalooza%2Frust_mail_client" "/workspace/builds/worker-8/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/madolchepalooza/rust_mail_client on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", 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-8/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" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a98049c92127e7b3b887b38ec90cc1b15abd8b66226ae36d048f621b004b10f5 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "a98049c92127e7b3b887b38ec90cc1b15abd8b66226ae36d048f621b004b10f5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a98049c92127e7b3b887b38ec90cc1b15abd8b66226ae36d048f621b004b10f5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a98049c92127e7b3b887b38ec90cc1b15abd8b66226ae36d048f621b004b10f5", kill_on_drop: false }` [INFO] [stdout] a98049c92127e7b3b887b38ec90cc1b15abd8b66226ae36d048f621b004b10f5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 54b4ccb8becb43b92327b4b38fde15d0fe25e365b199214ab9571b196181786e [INFO] running `Command { std: "docker" "start" "-a" "54b4ccb8becb43b92327b4b38fde15d0fe25e365b199214ab9571b196181786e", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.18 [INFO] [stderr] Compiling libc v0.2.71 [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 futures-core v0.3.5 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling proc-macro-nested v0.1.6 [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling slab v0.4.2 [INFO] [stderr] Compiling proc-macro-hack v0.5.16 [INFO] [stderr] Compiling once_cell v1.4.0 [INFO] [stderr] Compiling futures-sink v0.3.5 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling serde_derive v1.0.114 [INFO] [stderr] Compiling futures-io v0.3.5 [INFO] [stderr] Compiling tinyvec v0.3.3 [INFO] [stderr] Compiling matches v0.1.8 [INFO] [stderr] Compiling pin-utils v0.1.0 [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 ppv-lite86 v0.2.8 [INFO] [stderr] Compiling gimli v0.21.0 [INFO] [stderr] Compiling rustc-demangle v0.1.16 [INFO] [stderr] Compiling object v0.20.0 [INFO] [stderr] Compiling pin-project-lite v0.1.7 [INFO] [stderr] Compiling bytes v0.5.5 [INFO] [stderr] Compiling percent-encoding v2.1.0 [INFO] [stderr] Compiling match_cfg v0.1.0 [INFO] [stderr] Compiling smallvec v1.4.0 [INFO] [stderr] Compiling data-encoding v2.2.1 [INFO] [stderr] Compiling linked-hash-map v0.5.3 [INFO] [stderr] Compiling quick-error v1.2.3 [INFO] [stderr] Compiling nibble_vec v0.0.4 [INFO] [stderr] Compiling endian-type v0.1.2 [INFO] [stderr] Compiling regex-syntax v0.6.18 [INFO] [stderr] Compiling futures-channel v0.3.5 [INFO] [stderr] Compiling thread_local v1.0.1 [INFO] [stderr] Compiling futures-task v0.3.5 [INFO] [stderr] Compiling unicode-bidi v0.3.4 [INFO] [stderr] Compiling miniz_oxide v0.3.7 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling num-integer v0.1.43 [INFO] [stderr] Compiling unicode-normalization v0.1.13 [INFO] [stderr] Compiling lru-cache v0.1.2 [INFO] [stderr] Compiling radix_trie v0.1.6 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Compiling aho-corasick v0.7.13 [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 time v0.1.43 [INFO] [stderr] Compiling hostname v0.3.1 [INFO] [stderr] Compiling idna v0.2.0 [INFO] [stderr] Compiling resolv-conf v0.6.3 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling mio v0.6.22 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling url v2.1.1 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling chrono v0.4.12 [INFO] [stderr] Compiling tokio v0.2.21 [INFO] [stderr] Compiling regex v1.3.9 [INFO] [stderr] Compiling addr2line v0.12.2 [INFO] [stderr] Compiling backtrace v0.3.49 [INFO] [stderr] Compiling futures-macro v0.3.5 [INFO] [stderr] Compiling thiserror-impl v1.0.20 [INFO] [stderr] Compiling enum-as-inner v0.3.2 [INFO] [stderr] Compiling async-trait v0.1.36 [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: `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: `crate::util` [INFO] [stdout] --> src/pop3.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use crate::util; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: denote infinite loops with `loop { ... }` [INFO] [stdout] --> src/pop3.rs:140:25 [INFO] [stdout] | [INFO] [stdout] 140 | while true{ [INFO] [stdout] | ^^^^^^^^^^ help: use `loop` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(while_true)]` on by default [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:358:5 [INFO] [stdout] | [INFO] [stdout] 354 | return Ok(counter); [INFO] [stdout] | ------------------ any code following this expression is unreachable [INFO] [stdout] ... [INFO] [stdout] 358 | 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:236:13 [INFO] [stdout] | [INFO] [stdout] 236 | _ => { [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:264:13 [INFO] [stdout] | [INFO] [stdout] 264 | _ => { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/pop3.rs:301:13 [INFO] [stdout] | [INFO] [stdout] 301 | _ => { [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: `client_list` [INFO] [stdout] --> src/pop3.rs:363:9 [INFO] [stdout] | [INFO] [stdout] 363 | let client_list: Vec = Vec::new(); [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_client_list` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/pop3.rs:52:16 [INFO] [stdout] | [INFO] [stdout] 52 | Ok(s) => { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `octets_counter` is assigned to, but never used [INFO] [stdout] --> src/pop3.rs:128:13 [INFO] [stdout] | [INFO] [stdout] 128 | let mut octets_counter: usize = 0; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_octets_counter` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `parse_result` [INFO] [stdout] --> src/pop3.rs:136:31 [INFO] [stdout] | [INFO] [stdout] 136 | if let Ok(parse_result) = parse_result{ [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parse_result` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `line` is never read [INFO] [stdout] --> src/pop3.rs:139:29 [INFO] [stdout] | [INFO] [stdout] 139 | let mut line: String = String::new(); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `error` [INFO] [stdout] --> src/pop3.rs:260:34 [INFO] [stdout] | [INFO] [stdout] 260 | }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:297:34 [INFO] [stdout] | [INFO] [stdout] 297 | }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: `order_number` [INFO] [stdout] --> src/pop3.rs:279:28 [INFO] [stdout] | [INFO] [stdout] 279 | pub fn list(&mut self, order_number: usize){ [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_order_number` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/pop3.rs:316:13 [INFO] [stdout] | [INFO] [stdout] 316 | 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:320:13 [INFO] [stdout] | [INFO] [stdout] 320 | 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:351:13 [INFO] [stdout] | [INFO] [stdout] 351 | 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: 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: `shutdown` [INFO] [stdout] --> src/tcp.rs:58:12 [INFO] [stdout] | [INFO] [stdout] 58 | pub fn shutdown(&mut self){ [INFO] [stdout] | ^^^^^^^^ [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: variant is never constructed: `POP3StatusParseError` [INFO] [stdout] --> src/util.rs:10:37 [INFO] [stdout] | [INFO] [stdout] 10 | POP3ResponseParseError(String), POP3StatusParseError(String) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `is_error_tcp_handled` [INFO] [stdout] --> src/util.rs:13:8 [INFO] [stdout] | [INFO] [stdout] 13 | 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:23:8 [INFO] [stdout] | [INFO] [stdout] 23 | 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:35:8 [INFO] [stdout] | [INFO] [stdout] 35 | pub fn dns_resolve(host_name: String) -> Result{ [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `connection_test` [INFO] [stdout] --> src/pop3.rs:184:12 [INFO] [stdout] | [INFO] [stdout] 184 | pub fn connection_test(&mut self){ [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `status_query` [INFO] [stdout] --> src/pop3.rs:242:12 [INFO] [stdout] | [INFO] [stdout] 242 | pub fn status_query(&mut self){ [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `list` [INFO] [stdout] --> src/pop3.rs:279:12 [INFO] [stdout] | [INFO] [stdout] 279 | pub fn list(&mut self, order_number: usize){ [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `parse_status_response` [INFO] [stdout] --> src/pop3.rs:328:4 [INFO] [stdout] | [INFO] [stdout] 328 | fn parse_status_response(_response: String) -> Result<(usize, usize), MailError>{ [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::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 `std::result::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 `std::result::Result` that must be used [INFO] [stdout] --> src/pop3.rs:368:5 [INFO] [stdout] | [INFO] [stdout] 368 | test_client._retr(3); [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: 37 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2m 10s [INFO] running `Command { std: "docker" "inspect" "54b4ccb8becb43b92327b4b38fde15d0fe25e365b199214ab9571b196181786e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "54b4ccb8becb43b92327b4b38fde15d0fe25e365b199214ab9571b196181786e", kill_on_drop: false }` [INFO] [stdout] 54b4ccb8becb43b92327b4b38fde15d0fe25e365b199214ab9571b196181786e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3953740bedc76ba565f953c98242ae219ad5edce57f4631a9173bb9cc1efdd63 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "3953740bedc76ba565f953c98242ae219ad5edce57f4631a9173bb9cc1efdd63", kill_on_drop: false }` [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: `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: `crate::util` [INFO] [stdout] --> src/pop3.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use crate::util; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: denote infinite loops with `loop { ... }` [INFO] [stdout] --> src/pop3.rs:140:25 [INFO] [stdout] | [INFO] [stdout] 140 | while true{ [INFO] [stdout] | ^^^^^^^^^^ help: use `loop` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(while_true)]` on by default [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:358:5 [INFO] [stdout] | [INFO] [stdout] 354 | return Ok(counter); [INFO] [stdout] | ------------------ any code following this expression is unreachable [INFO] [stdout] ... [INFO] [stdout] 358 | 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:236:13 [INFO] [stdout] | [INFO] [stdout] 236 | _ => { [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:264:13 [INFO] [stdout] | [INFO] [stdout] 264 | _ => { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/pop3.rs:301:13 [INFO] [stdout] | [INFO] [stdout] 301 | _ => { [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: `client_list` [INFO] [stdout] --> src/pop3.rs:363:9 [INFO] [stdout] | [INFO] [stdout] 363 | let client_list: Vec = Vec::new(); [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_client_list` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/pop3.rs:52:16 [INFO] [stdout] | [INFO] [stdout] 52 | Ok(s) => { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `octets_counter` is assigned to, but never used [INFO] [stdout] --> src/pop3.rs:128:13 [INFO] [stdout] | [INFO] [stdout] 128 | let mut octets_counter: usize = 0; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_octets_counter` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `parse_result` [INFO] [stdout] --> src/pop3.rs:136:31 [INFO] [stdout] | [INFO] [stdout] 136 | if let Ok(parse_result) = parse_result{ [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parse_result` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `line` is never read [INFO] [stdout] --> src/pop3.rs:139:29 [INFO] [stdout] | [INFO] [stdout] 139 | let mut line: String = String::new(); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `error` [INFO] [stdout] --> src/pop3.rs:260:34 [INFO] [stdout] | [INFO] [stdout] 260 | }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:297:34 [INFO] [stdout] | [INFO] [stdout] 297 | }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: `order_number` [INFO] [stdout] --> src/pop3.rs:279:28 [INFO] [stdout] | [INFO] [stdout] 279 | pub fn list(&mut self, order_number: usize){ [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_order_number` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/pop3.rs:316:13 [INFO] [stdout] | [INFO] [stdout] 316 | 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:320:13 [INFO] [stdout] | [INFO] [stdout] 320 | 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:351:13 [INFO] [stdout] | [INFO] [stdout] 351 | 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: 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: `shutdown` [INFO] [stdout] --> src/tcp.rs:58:12 [INFO] [stdout] | [INFO] [stdout] 58 | pub fn shutdown(&mut self){ [INFO] [stdout] | ^^^^^^^^ [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: variant is never constructed: `POP3StatusParseError` [INFO] [stdout] --> src/util.rs:10:37 [INFO] [stdout] | [INFO] [stdout] 10 | POP3ResponseParseError(String), POP3StatusParseError(String) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `is_error_tcp_handled` [INFO] [stdout] --> src/util.rs:13:8 [INFO] [stdout] | [INFO] [stdout] 13 | 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:23:8 [INFO] [stdout] | [INFO] [stdout] 23 | 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:35:8 [INFO] [stdout] | [INFO] [stdout] 35 | pub fn dns_resolve(host_name: String) -> Result{ [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `connection_test` [INFO] [stdout] --> src/pop3.rs:184:12 [INFO] [stdout] | [INFO] [stdout] 184 | pub fn connection_test(&mut self){ [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `status_query` [INFO] [stdout] --> src/pop3.rs:242:12 [INFO] [stdout] | [INFO] [stdout] 242 | pub fn status_query(&mut self){ [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `list` [INFO] [stdout] --> src/pop3.rs:279:12 [INFO] [stdout] | [INFO] [stdout] 279 | pub fn list(&mut self, order_number: usize){ [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `parse_status_response` [INFO] [stdout] --> src/pop3.rs:328:4 [INFO] [stdout] | [INFO] [stdout] 328 | fn parse_status_response(_response: String) -> Result<(usize, usize), MailError>{ [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::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 `std::result::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 `std::result::Result` that must be used [INFO] [stdout] --> src/pop3.rs:368:5 [INFO] [stdout] | [INFO] [stdout] 368 | test_client._retr(3); [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: 37 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.05s [INFO] running `Command { std: "docker" "inspect" "3953740bedc76ba565f953c98242ae219ad5edce57f4631a9173bb9cc1efdd63", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3953740bedc76ba565f953c98242ae219ad5edce57f4631a9173bb9cc1efdd63", kill_on_drop: false }` [INFO] [stdout] 3953740bedc76ba565f953c98242ae219ad5edce57f4631a9173bb9cc1efdd63 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] e0dc8fe4f5ef078a06abe93eb3fa7ce5b18166bb66d03c9cd2d8f51331013c0f [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "e0dc8fe4f5ef078a06abe93eb3fa7ce5b18166bb66d03c9cd2d8f51331013c0f", kill_on_drop: false }` [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: `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: `crate::util` [INFO] [stderr] --> src/pop3.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use crate::util; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: denote infinite loops with `loop { ... }` [INFO] [stderr] --> src/pop3.rs:140:25 [INFO] [stderr] | [INFO] [stderr] 140 | while true{ [INFO] [stderr] | ^^^^^^^^^^ help: use `loop` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(while_true)]` on by default [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:358:5 [INFO] [stderr] | [INFO] [stderr] 354 | return Ok(counter); [INFO] [stderr] | ------------------ any code following this expression is unreachable [INFO] [stderr] ... [INFO] [stderr] 358 | 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:236:13 [INFO] [stderr] | [INFO] [stderr] 236 | _ => { [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:264:13 [INFO] [stderr] | [INFO] [stderr] 264 | _ => { [INFO] [stderr] | ^ [INFO] [stderr] [INFO] [stderr] warning: unreachable pattern [INFO] [stderr] --> src/pop3.rs:301:13 [INFO] [stderr] | [INFO] [stderr] 301 | _ => { [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: `client_list` [INFO] [stderr] --> src/pop3.rs:363:9 [INFO] [stderr] | [INFO] [stderr] 363 | let client_list: Vec = Vec::new(); [INFO] [stderr] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_client_list` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s` [INFO] [stderr] --> src/pop3.rs:52:16 [INFO] [stderr] | [INFO] [stderr] 52 | Ok(s) => { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stderr] [INFO] [stderr] warning: variable `octets_counter` is assigned to, but never used [INFO] [stderr] --> src/pop3.rs:128:13 [INFO] [stderr] | [INFO] [stderr] 128 | let mut octets_counter: usize = 0; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_octets_counter` instead [INFO] [stderr] [INFO] [stderr] warning: unused variable: `parse_result` [INFO] [stderr] --> src/pop3.rs:136:31 [INFO] [stderr] | [INFO] [stderr] 136 | if let Ok(parse_result) = parse_result{ [INFO] [stderr] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parse_result` [INFO] [stderr] [INFO] [stderr] warning: value assigned to `line` is never read [INFO] [stderr] --> src/pop3.rs:139:29 [INFO] [stderr] | [INFO] [stderr] 139 | let mut line: String = String::new(); [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: unused variable: `error` [INFO] [stderr] --> src/pop3.rs:260:34 [INFO] [stderr] | [INFO] [stderr] 260 | }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:297:34 [INFO] [stderr] | [INFO] [stderr] 297 | }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: `order_number` [INFO] [stderr] --> src/pop3.rs:279:28 [INFO] [stderr] | [INFO] [stderr] 279 | pub fn list(&mut self, order_number: usize){ [INFO] [stderr] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_order_number` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/pop3.rs:316:13 [INFO] [stderr] | [INFO] [stderr] 316 | 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:320:13 [INFO] [stderr] | [INFO] [stderr] 320 | 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:351:13 [INFO] [stderr] | [INFO] [stderr] 351 | let mut cap = octets_count_regex.captures(&response); [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [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: `shutdown` [INFO] [stderr] --> src/tcp.rs:58:12 [INFO] [stderr] | [INFO] [stderr] 58 | pub fn shutdown(&mut self){ [INFO] [stderr] | ^^^^^^^^ [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: variant is never constructed: `POP3StatusParseError` [INFO] [stderr] --> src/util.rs:10:37 [INFO] [stderr] | [INFO] [stderr] 10 | POP3ResponseParseError(String), POP3StatusParseError(String) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `is_error_tcp_handled` [INFO] [stderr] --> src/util.rs:13:8 [INFO] [stderr] | [INFO] [stderr] 13 | 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:23:8 [INFO] [stderr] | [INFO] [stderr] 23 | 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:35:8 [INFO] [stderr] | [INFO] [stderr] 35 | pub fn dns_resolve(host_name: String) -> Result{ [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `connection_test` [INFO] [stderr] --> src/pop3.rs:184:12 [INFO] [stderr] | [INFO] [stderr] 184 | pub fn connection_test(&mut self){ [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `status_query` [INFO] [stderr] --> src/pop3.rs:242:12 [INFO] [stderr] | [INFO] [stderr] 242 | pub fn status_query(&mut self){ [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `list` [INFO] [stderr] --> src/pop3.rs:279:12 [INFO] [stderr] | [INFO] [stderr] 279 | pub fn list(&mut self, order_number: usize){ [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `parse_status_response` [INFO] [stderr] --> src/pop3.rs:328:4 [INFO] [stderr] | [INFO] [stderr] 328 | fn parse_status_response(_response: String) -> Result<(usize, usize), MailError>{ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::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 `std::result::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 `std::result::Result` that must be used [INFO] [stderr] --> src/pop3.rs:368:5 [INFO] [stderr] | [INFO] [stderr] 368 | test_client._retr(3); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: 37 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.20s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/mail_client-5c3ae8eb1816396d [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 [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "e0dc8fe4f5ef078a06abe93eb3fa7ce5b18166bb66d03c9cd2d8f51331013c0f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e0dc8fe4f5ef078a06abe93eb3fa7ce5b18166bb66d03c9cd2d8f51331013c0f", kill_on_drop: false }` [INFO] [stdout] e0dc8fe4f5ef078a06abe93eb3fa7ce5b18166bb66d03c9cd2d8f51331013c0f