[INFO] cloning repository https://github.com/theAester/dftp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/theAester/dftp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FtheAester%2Fdftp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FtheAester%2Fdftp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5f50ce2cc5e4565799b4e9e82df6bddc6a3b5a73
[INFO] linting theAester/dftp against nightly for clippy-nonminimal_bool-denied
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FtheAester%2Fdftp" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/theAester/dftp
[INFO] finished tweaking git repo https://github.com/theAester/dftp
[INFO] tweaked toml for git repo https://github.com/theAester/dftp written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/theAester/dftp on toolchain nightly
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 22 packages to latest compatible versions
[INFO] [stderr]       Adding generic-array v0.14.7 (available: v0.14.9)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded net2 v0.2.39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0c23f1b4812181e4f25022e1ad1c7792685cb78451f36d4d63655530c6d3fed7
[INFO] running `Command { std: "docker" "start" "-a" "0c23f1b4812181e4f25022e1ad1c7792685cb78451f36d4d63655530c6d3fed7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c23f1b4812181e4f25022e1ad1c7792685cb78451f36d4d63655530c6d3fed7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c23f1b4812181e4f25022e1ad1c7792685cb78451f36d4d63655530c6d3fed7", kill_on_drop: false }`
[INFO] [stdout] 0c23f1b4812181e4f25022e1ad1c7792685cb78451f36d4d63655530c6d3fed7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "clippy" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b3f21bba1b32703ed3b10bff579ddfcba7f562920e3e49f3ca8891cc1c129fd0
[INFO] running `Command { std: "docker" "start" "-a" "b3f21bba1b32703ed3b10bff579ddfcba7f562920e3e49f3ca8891cc1c129fd0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.183
[INFO] [stderr]     Checking simd-adler32 v0.3.8
[INFO] [stderr]     Checking miniz_oxide v0.8.9
[INFO] [stderr]     Checking flate2 v1.1.9
[INFO] [stderr]     Checking net2 v0.2.39
[INFO] [stderr]     Checking dftp v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fmt::Write as fWrite`
[INFO] [stdout]  --> src/protocol.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::fmt::Write as fWrite;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses
[INFO] [stdout]    --> src/protocol.rs:162:18
[INFO] [stdout]     |
[INFO] [stdout] 162 |         buf[0] = ((len >> 56)       ) as u8;
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^ help: remove them: `(len >> 56)`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#double_parens
[INFO] [stdout]     = note: `#[warn(clippy::double_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses
[INFO] [stdout]    --> src/protocol.rs:176:18
[INFO] [stdout]     |
[INFO] [stdout] 176 |         buf[9] = ((len >> 24)       ) as u8;
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^ help: remove them: `(len >> 24)`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#double_parens
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Write as fWrite`
[INFO] [stdout]  --> src/protocol.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::fmt::Write as fWrite;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses
[INFO] [stdout]    --> src/protocol.rs:162:18
[INFO] [stdout]     |
[INFO] [stdout] 162 |         buf[0] = ((len >> 56)       ) as u8;
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^ help: remove them: `(len >> 56)`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#double_parens
[INFO] [stdout]     = note: `#[warn(clippy::double_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses
[INFO] [stdout]    --> src/protocol.rs:176:18
[INFO] [stdout]     |
[INFO] [stdout] 176 |         buf[9] = ((len >> 24)       ) as u8;
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^ help: remove them: `(len >> 24)`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#double_parens
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]    --> src/protocol.rs:428:17
[INFO] [stdout]     |
[INFO] [stdout] 428 | fn compute_hash(file: &mut File) -> [u8; 32] {
[INFO] [stdout]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/protocol.rs:466:9
[INFO] [stdout]     |
[INFO] [stdout] 466 |     let mut s = String::new();
[INFO] [stdout]     |         ----^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hash`
[INFO] [stdout]    --> src/protocol.rs:465:19
[INFO] [stdout]     |
[INFO] [stdout] 465 | fn stringify_hash(hash: &[u8]) -> String {
[INFO] [stdout]     |                   ^^^^ help: if this is intentional, prefix it with an underscore: `_hash`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Message` is never used
[INFO] [stdout]    --> src/protocol.rs:290:6
[INFO] [stdout]     |
[INFO] [stdout] 290 | enum Message {
[INFO] [stdout]     |      ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual `!RangeInclusive::contains` implementation
[INFO] [stdout]   --> src/cmd.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 50 |         if port < 1 || port > 65536 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^ help: use: `!(1..=65536).contains(&port)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_range_contains
[INFO] [stdout]    = note: `#[warn(clippy::manual_range_contains)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to one
[INFO] [stdout]   --> src/cmd.rs:61:38
[INFO] [stdout]    |
[INFO] [stdout] 61 |         if matches.free.len() > 2 || matches.free.len() < 1{
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `matches.free.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]    = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: equality checks against true are unnecessary
[INFO] [stdout]   --> src/cmd.rs:82:8
[INFO] [stdout]    |
[INFO] [stdout] 82 |     if compress == true && direction == DIR_RECV {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^ help: try: `compress`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_comparison
[INFO] [stdout]    = note: `#[warn(clippy::bool_comparison)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&String` instead of `&str` involves a new object where a slice will do
[INFO] [stdout]   --> src/cmd.rs:97:37
[INFO] [stdout]    |
[INFO] [stdout] 97 | fn is_addr_string_valid(addrstring: &String) -> bool {
[INFO] [stdout]    |                                     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stdout]    = note: `#[warn(clippy::ptr_arg)]` on by default
[INFO] [stdout] help: change this to
[INFO] [stdout]    |
[INFO] [stdout] 97 - fn is_addr_string_valid(addrstring: &String) -> bool {
[INFO] [stdout] 97 + fn is_addr_string_valid(addrstring: &str) -> bool {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant pattern matching, consider using `is_ok()`
[INFO] [stdout]    --> src/cmd.rs:172:5
[INFO] [stdout]     |
[INFO] [stdout] 172 | /     match parsed {
[INFO] [stdout] 173 | |         Ok(_) => true,
[INFO] [stdout] 174 | |         Err(_) => false 
[INFO] [stdout] 175 | |     }
[INFO] [stdout]     | |_____^ help: try: `parsed.is_ok()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stdout]     = note: `#[warn(clippy::redundant_pattern_matching)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/network.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     return Ok(stream);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]    = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 26 -     return Ok(stream);
[INFO] [stdout] 26 +     Ok(stream)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `to_string` applied to a type that implements `Display` in `format!` args
[INFO] [stdout]   --> src/network.rs:14:86
[INFO] [stdout]    |
[INFO] [stdout] 14 |             Err(m) => { return Err(format!("Cannot bind to port {}:\n    {}", port, m.to_string())); }
[INFO] [stdout]    |                                                                                      ^^^^^^^^^^^^ help: remove this
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#to_string_in_format_args
[INFO] [stdout]    = note: `#[warn(clippy::to_string_in_format_args)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `to_string` applied to a type that implements `Display` in `format!` args
[INFO] [stdout]   --> src/network.rs:24:66
[INFO] [stdout]    |
[INFO] [stdout] 24 |         Err(m) => { return Err(format!("connection failed: {}", m.to_string())); }
[INFO] [stdout]    |                                                                  ^^^^^^^^^^^^ help: remove this
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#to_string_in_format_args
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `to_string` applied to a type that implements `Display` in `format!` args
[INFO] [stdout]   --> src/network.rs:36:76
[INFO] [stdout]    |
[INFO] [stdout] 36 |         Err(m) => {return Err(format!("Cannot bind to port {}: {}", port, m.to_string())); }
[INFO] [stdout]    |                                                                            ^^^^^^^^^^^^ help: remove this
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#to_string_in_format_args
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `to_string` applied to a type that implements `Display` in `format!` args
[INFO] [stdout]   --> src/network.rs:40:82
[INFO] [stdout]    |
[INFO] [stdout] 40 |         Err(m) => { return Err(format!("Listening on port {} failed: {}", port, m.to_string())); }
[INFO] [stdout]    |                                                                                  ^^^^^^^^^^^^ help: remove this
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#to_string_in_format_args
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `to_string` applied to a type that implements `Display` in `format!` args
[INFO] [stdout]   --> src/network.rs:44:67
[INFO] [stdout]    |
[INFO] [stdout] 44 |         Err(m) => { return Err(format!("Cannot accept peer: {}", m.to_string())); }
[INFO] [stdout]    |                                                                   ^^^^^^^^^^^^ help: remove this
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#to_string_in_format_args
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]  --> src/files.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     return !(filename == "stdin");
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^ help: try: `(filename != "stdin")`
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]   = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]  --> src/files.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     return !(filename == "stdin");
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]   |
[INFO] [stdout] 6 -     return !(filename == "stdin");
[INFO] [stdout] 6 +     !(filename == "stdin")
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `to_string` applied to a type that implements `Display` in `format!` args
[INFO] [stdout]   --> src/files.rs:15:92
[INFO] [stdout]    |
[INFO] [stdout] 15 |         Err(m) => { return Err(format!("Error opening file {} for reading: {}", filename, m.to_string())); }
[INFO] [stdout]    |                                                                                            ^^^^^^^^^^^^ help: remove this
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#to_string_in_format_args
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `to_string` applied to a type that implements `Display` in `format!` args
[INFO] [stdout]   --> src/files.rs:26:92
[INFO] [stdout]    |
[INFO] [stdout] 26 |         Err(m) => { return Err(format!("Error opening file {} for writing: {}", filename, m.to_string())); }
[INFO] [stdout]    |                                                                                            ^^^^^^^^^^^^ help: remove this
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#to_string_in_format_args
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]   --> src/protocol.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 71 | /         match stream.write_all(&buf) {
[INFO] [stdout] 72 | |             Err(e) => {
[INFO] [stdout] 73 | |                 match e.kind() {
[INFO] [stdout] 74 | |                     WouldBlock | TimedOut => {return Err("requst timeout".to_string());}
[INFO] [stdout] ...  |
[INFO] [stdout] 78 | |             Ok(_) => {},
[INFO] [stdout] 79 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout]    = note: `#[warn(clippy::single_match)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 71 ~         if let Err(e) = stream.write_all(&buf) {
[INFO] [stdout] 72 +             match e.kind() {
[INFO] [stdout] 73 +                 WouldBlock | TimedOut => {return Err("requst timeout".to_string());}
[INFO] [stdout] 74 +                 _ => { panic!("something is seriously wrong"); },
[INFO] [stdout] 75 +             }
[INFO] [stdout] 76 +         }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]   --> src/protocol.rs:84:9
[INFO] [stdout]    |
[INFO] [stdout] 84 | /         match stream.read_exact(&mut buf) {
[INFO] [stdout] 85 | |             Err(e) => {
[INFO] [stdout] 86 | |                 match e.kind() {
[INFO] [stdout] 87 | |                     WouldBlock | TimedOut => {return Err("requst timeout".to_string());}
[INFO] [stdout] ...  |
[INFO] [stdout] 91 | |             Ok(_) => {},
[INFO] [stdout] 92 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 84 ~         if let Err(e) = stream.read_exact(&mut buf) {
[INFO] [stdout] 85 +             match e.kind() {
[INFO] [stdout] 86 +                 WouldBlock | TimedOut => {return Err("requst timeout".to_string());}
[INFO] [stdout] 87 +                 _ => { panic!("something is seriously wrong"); },
[INFO] [stdout] 88 +             }
[INFO] [stdout] 89 +         }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/protocol.rs:119:9
[INFO] [stdout]     |
[INFO] [stdout] 119 | /         match stream.write_all(&buf) {
[INFO] [stdout] 120 | |             Err(e) => {
[INFO] [stdout] 121 | |                 match e.kind() {
[INFO] [stdout] 122 | |                     WouldBlock | TimedOut => {return Err("requst timeout".to_string());}
[INFO] [stdout] ...   |
[INFO] [stdout] 126 | |             Ok(_) => {},
[INFO] [stdout] 127 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 119 ~         if let Err(e) = stream.write_all(&buf) {
[INFO] [stdout] 120 +             match e.kind() {
[INFO] [stdout] 121 +                 WouldBlock | TimedOut => {return Err("requst timeout".to_string());}
[INFO] [stdout] 122 +                 _ => { panic!("something is seriously wrong"); },
[INFO] [stdout] 123 +             }
[INFO] [stdout] 124 +         }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/protocol.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 | /         match stream.read_exact(&mut buf) {
[INFO] [stdout] 133 | |             Err(e) => {
[INFO] [stdout] 134 | |                 match e.kind() {
[INFO] [stdout] 135 | |                     WouldBlock | TimedOut => {return Err("requst timeout".to_string());}
[INFO] [stdout] ...   |
[INFO] [stdout] 139 | |             Ok(_) => {},
[INFO] [stdout] 140 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 132 ~         if let Err(e) = stream.read_exact(&mut buf) {
[INFO] [stdout] 133 +             match e.kind() {
[INFO] [stdout] 134 +                 WouldBlock | TimedOut => {return Err("requst timeout".to_string());}
[INFO] [stdout] 135 +                 _ => { panic!("something is seriously wrong"); },
[INFO] [stdout] 136 +             }
[INFO] [stdout] 137 +         }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/protocol.rs:191:9
[INFO] [stdout]     |
[INFO] [stdout] 191 | /         match stream.write_all(buf){
[INFO] [stdout] 192 | |             Err(e) => {
[INFO] [stdout] 193 | |                 match e.kind() {
[INFO] [stdout] 194 | |                     WouldBlock | TimedOut => {return Err("requst timeout".to_string());}
[INFO] [stdout] ...   |
[INFO] [stdout] 198 | |             Ok(_) => {},
[INFO] [stdout] 199 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 191 ~         if let Err(e) = stream.write_all(buf) {
[INFO] [stdout] 192 +             match e.kind() {
[INFO] [stdout] 193 +                 WouldBlock | TimedOut => {return Err("requst timeout".to_string());}
[INFO] [stdout] 194 +                 _ => { panic!("something is seriously wrong"); },
[INFO] [stdout] 195 +             }
[INFO] [stdout] 196 +         }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/protocol.rs:205:9
[INFO] [stdout]     |
[INFO] [stdout] 205 | /         match stream.read_exact(&mut buf){
[INFO] [stdout] 206 | |             Err(e) => {
[INFO] [stdout] 207 | |                 match e.kind() {
[INFO] [stdout] 208 | |                     WouldBlock | TimedOut => {return Err("requst timeout".to_string());}
[INFO] [stdout] ...   |
[INFO] [stdout] 212 | |             Ok(_) => {},
[INFO] [stdout] 213 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 205 ~         if let Err(e) = stream.read_exact(&mut buf) {
[INFO] [stdout] 206 +             match e.kind() {
[INFO] [stdout] 207 +                 WouldBlock | TimedOut => {return Err("requst timeout".to_string());}
[INFO] [stdout] 208 +                 _ => { panic!("something is seriously wrong"); },
[INFO] [stdout] 209 +             }
[INFO] [stdout] 210 +         }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/protocol.rs:237:9
[INFO] [stdout]     |
[INFO] [stdout] 237 | /         match stream.read_exact(&mut buf2[..]) {
[INFO] [stdout] 238 | |         Err(e) => {
[INFO] [stdout] 239 | |             match e.kind() {
[INFO] [stdout] 240 | |                 WouldBlock | TimedOut => {return Err("requst timeout".to_string());}
[INFO] [stdout] ...   |
[INFO] [stdout] 244 | |         Ok(_) => {},
[INFO] [stdout] 245 | |         };
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 237 ~         if let Err(e) = stream.read_exact(&mut buf2[..]) {
[INFO] [stdout] 238 +             match e.kind() {
[INFO] [stdout] 239 +                 WouldBlock | TimedOut => {return Err("requst timeout".to_string());}
[INFO] [stdout] 240 +                 _ => { panic!("something is seriously wrong"); },
[INFO] [stdout] 241 +             }
[INFO] [stdout] 242 ~         };
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/protocol.rs:249:9
[INFO] [stdout]     |
[INFO] [stdout] 249 | /         match stream.read_exact(&mut hash){
[INFO] [stdout] 250 | |         Err(e) => {
[INFO] [stdout] 251 | |             match e.kind() {
[INFO] [stdout] 252 | |                 WouldBlock | TimedOut => {return Err("requst timeout".to_string());}
[INFO] [stdout] ...   |
[INFO] [stdout] 256 | |         Ok(_) => {},
[INFO] [stdout] 257 | |         };
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 249 ~         if let Err(e) = stream.read_exact(&mut hash) {
[INFO] [stdout] 250 +             match e.kind() {
[INFO] [stdout] 251 +                 WouldBlock | TimedOut => {return Err("requst timeout".to_string());}
[INFO] [stdout] 252 +                 _ => { panic!("something is seriously wrong"); },
[INFO] [stdout] 253 +             }
[INFO] [stdout] 254 ~         };
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `to_string` applied to a type that implements `Display` in `format!` args
[INFO] [stdout]    --> src/protocol.rs:368:77
[INFO] [stdout]     |
[INFO] [stdout] 368 |             Err(m) => {return Err(format!("Error while opening file: {:}", m.to_string()));}
[INFO] [stdout]     |                                                                             ^^^^^^^^^^^^ help: remove this
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#to_string_in_format_args
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stdout]    --> src/protocol.rs:385:49
[INFO] [stdout]     |
[INFO] [stdout] 385 |   fn protocol_adjust_recv(mut peer: TcpStream) -> Result<(Box<dyn Read>,
[INFO] [stdout]     |  _________________________________________________^
[INFO] [stdout] 386 | |                                                         Option<FileHeader>,
[INFO] [stdout] 387 | |                                                         ProtocolTable), String>{
[INFO] [stdout]     | |_______________________________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stdout]     = note: `#[warn(clippy::type_complexity)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `to_string` applied to a type that implements `Display` in `format!` args
[INFO] [stdout]    --> src/protocol.rs:412:86
[INFO] [stdout]     |
[INFO] [stdout] 412 |             Err(m) => {return Err(format!("Error while receiving file header: {:}", m.to_string()));}
[INFO] [stdout]     |                                                                                      ^^^^^^^^^^^^ help: remove this
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#to_string_in_format_args
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/protocol.rs:438:5
[INFO] [stdout]     |
[INFO] [stdout] 438 |     return [0u8; 32];
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 438 -     return [0u8; 32];
[INFO] [stdout] 438 +     [0u8; 32]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting to the same type is unnecessary (`u64` -> `u64`)
[INFO] [stdout]    --> src/protocol.rs:446:16
[INFO] [stdout]     |
[INFO] [stdout] 446 |     let size = file.metadata()?.len() as u64;
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `file.metadata()?.len()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast
[INFO] [stdout]     = note: `#[warn(clippy::unnecessary_cast)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/protocol.rs:470:5
[INFO] [stdout]     |
[INFO] [stdout] 470 |     return s;
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 470 -     return s;
[INFO] [stdout] 470 +     s
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` statement can be collapsed
[INFO] [stdout]    --> src/protocol.rs:524:9
[INFO] [stdout]     |
[INFO] [stdout] 524 | /         if counter == 0 {
[INFO] [stdout] 525 | |             if filename != "stdin" {
[INFO] [stdout] 526 | |                 let micros = now.elapsed().unwrap().as_micros() as u64;
[INFO] [stdout] 527 | |                 let speed = (bufflen_acc * 1_000_000) as f64 / micros as f64;
[INFO] [stdout] ...   |
[INFO] [stdout] 534 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stdout]     = note: `#[warn(clippy::collapsible_if)]` on by default
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]     |
[INFO] [stdout] 524 ~         if counter == 0
[INFO] [stdout] 525 ~             && filename != "stdin" {
[INFO] [stdout] 526 |                 let micros = now.elapsed().unwrap().as_micros() as u64;
[INFO] [stdout] ...
[INFO] [stdout] 532 |
[INFO] [stdout] 533 ~             }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/protocol.rs:535:9
[INFO] [stdout]     |
[INFO] [stdout] 535 | /         match sender.write_all(&buff[0..bufflen]) {
[INFO] [stdout] 536 | |             Err(e) => {
[INFO] [stdout] 537 | |                 match e.kind() {
[INFO] [stdout] 538 | |                     WouldBlock | TimedOut | ConnectionReset => {
[INFO] [stdout] ...   |
[INFO] [stdout] 545 | |             Ok(_)=>{}
[INFO] [stdout] 546 | |         };
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 535 ~         if let Err(e) = sender.write_all(&buff[0..bufflen]) {
[INFO] [stdout] 536 +             match e.kind() {
[INFO] [stdout] 537 +                 WouldBlock | TimedOut | ConnectionReset => {
[INFO] [stdout] 538 +                     eprintln!("The sender has closed the connection. Aborting transfer.");
[INFO] [stdout] 539 +                     break;
[INFO] [stdout] 540 +                 }
[INFO] [stdout] 541 +                 _ => { panic!("Unexpected network error. Aborting."); },
[INFO] [stdout] 542 +             }
[INFO] [stdout] 543 ~         };
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `unwrap` on `fileheader` after checking its variant with `is_some`
[INFO] [stdout]    --> src/protocol.rs:568:20
[INFO] [stdout]     |
[INFO] [stdout] 567 |     if fileheader.is_some() && filename == "stdin" {
[INFO] [stdout]     |        -------------------- the check is happening here
[INFO] [stdout] 568 |         filename = fileheader.as_ref().unwrap().name.clone();
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: try using `match`
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_unwrap
[INFO] [stdout]     = note: `#[warn(clippy::unnecessary_unwrap)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting to the same type is unnecessary (`f32` -> `f32`)
[INFO] [stdout]    --> src/protocol.rs:626:17
[INFO] [stdout]     |
[INFO] [stdout] 626 |     let ratio = total as f32 / length as f32;
[INFO] [stdout]     |                 ^^^^^^^^^^^^ help: try: `total`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting to the same type is unnecessary (`f32` -> `f32`)
[INFO] [stdout]    --> src/protocol.rs:626:32
[INFO] [stdout]     |
[INFO] [stdout] 626 |     let ratio = total as f32 / length as f32;
[INFO] [stdout]     |                                ^^^^^^^^^^^^^ help: try: `length`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]    --> src/protocol.rs:428:17
[INFO] [stdout]     |
[INFO] [stdout] 428 | fn compute_hash(file: &mut File) -> [u8; 32] {
[INFO] [stdout]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/protocol.rs:466:9
[INFO] [stdout]     |
[INFO] [stdout] 466 |     let mut s = String::new();
[INFO] [stdout]     |         ----^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hash`
[INFO] [stdout]    --> src/protocol.rs:465:19
[INFO] [stdout]     |
[INFO] [stdout] 465 | fn stringify_hash(hash: &[u8]) -> String {
[INFO] [stdout]     |                   ^^^^ help: if this is intentional, prefix it with an underscore: `_hash`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Message` is never used
[INFO] [stdout]    --> src/protocol.rs:290:6
[INFO] [stdout]     |
[INFO] [stdout] 290 | enum Message {
[INFO] [stdout]     |      ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual `!RangeInclusive::contains` implementation
[INFO] [stdout]   --> src/cmd.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 50 |         if port < 1 || port > 65536 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^ help: use: `!(1..=65536).contains(&port)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_range_contains
[INFO] [stdout]    = note: `#[warn(clippy::manual_range_contains)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to one
[INFO] [stdout]   --> src/cmd.rs:61:38
[INFO] [stdout]    |
[INFO] [stdout] 61 |         if matches.free.len() > 2 || matches.free.len() < 1{
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `matches.free.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]    = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: equality checks against true are unnecessary
[INFO] [stdout]   --> src/cmd.rs:82:8
[INFO] [stdout]    |
[INFO] [stdout] 82 |     if compress == true && direction == DIR_RECV {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^ help: try: `compress`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_comparison
[INFO] [stdout]    = note: `#[warn(clippy::bool_comparison)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&String` instead of `&str` involves a new object where a slice will do
[INFO] [stdout]   --> src/cmd.rs:97:37
[INFO] [stdout]    |
[INFO] [stdout] 97 | fn is_addr_string_valid(addrstring: &String) -> bool {
[INFO] [stdout]    |                                     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stdout]    = note: `#[warn(clippy::ptr_arg)]` on by default
[INFO] [stdout] help: change this to
[INFO] [stdout]    |
[INFO] [stdout] 97 - fn is_addr_string_valid(addrstring: &String) -> bool {
[INFO] [stdout] 97 + fn is_addr_string_valid(addrstring: &str) -> bool {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant pattern matching, consider using `is_ok()`
[INFO] [stdout]    --> src/cmd.rs:172:5
[INFO] [stdout]     |
[INFO] [stdout] 172 | /     match parsed {
[INFO] [stdout] 173 | |         Ok(_) => true,
[INFO] [stdout] 174 | |         Err(_) => false 
[INFO] [stdout] 175 | |     }
[INFO] [stdout]     | |_____^ help: try: `parsed.is_ok()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stdout]     = note: `#[warn(clippy::redundant_pattern_matching)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/network.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     return Ok(stream);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]    = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 26 -     return Ok(stream);
[INFO] [stdout] 26 +     Ok(stream)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `to_string` applied to a type that implements `Display` in `format!` args
[INFO] [stdout]   --> src/network.rs:14:86
[INFO] [stdout]    |
[INFO] [stdout] 14 |             Err(m) => { return Err(format!("Cannot bind to port {}:\n    {}", port, m.to_string())); }
[INFO] [stdout]    |                                                                                      ^^^^^^^^^^^^ help: remove this
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#to_string_in_format_args
[INFO] [stdout]    = note: `#[warn(clippy::to_string_in_format_args)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `to_string` applied to a type that implements `Display` in `format!` args
[INFO] [stdout]   --> src/network.rs:24:66
[INFO] [stdout]    |
[INFO] [stdout] 24 |         Err(m) => { return Err(format!("connection failed: {}", m.to_string())); }
[INFO] [stdout]    |                                                                  ^^^^^^^^^^^^ help: remove this
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#to_string_in_format_args
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `to_string` applied to a type that implements `Display` in `format!` args
[INFO] [stdout]   --> src/network.rs:36:76
[INFO] [stdout]    |
[INFO] [stdout] 36 |         Err(m) => {return Err(format!("Cannot bind to port {}: {}", port, m.to_string())); }
[INFO] [stdout]    |                                                                            ^^^^^^^^^^^^ help: remove this
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#to_string_in_format_args
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `to_string` applied to a type that implements `Display` in `format!` args
[INFO] [stdout]   --> src/network.rs:40:82
[INFO] [stdout]    |
[INFO] [stdout] 40 |         Err(m) => { return Err(format!("Listening on port {} failed: {}", port, m.to_string())); }
[INFO] [stdout]    |                                                                                  ^^^^^^^^^^^^ help: remove this
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#to_string_in_format_args
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `to_string` applied to a type that implements `Display` in `format!` args
[INFO] [stdout]   --> src/network.rs:44:67
[INFO] [stdout]    |
[INFO] [stdout] 44 |         Err(m) => { return Err(format!("Cannot accept peer: {}", m.to_string())); }
[INFO] [stdout]    |                                                                   ^^^^^^^^^^^^ help: remove this
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#to_string_in_format_args
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]  --> src/files.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     return !(filename == "stdin");
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^ help: try: `(filename != "stdin")`
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]   = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]  --> src/files.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     return !(filename == "stdin");
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]   |
[INFO] [stdout] 6 -     return !(filename == "stdin");
[INFO] [stdout] 6 +     !(filename == "stdin")
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `to_string` applied to a type that implements `Display` in `format!` args
[INFO] [stdout]   --> src/files.rs:15:92
[INFO] [stdout]    |
[INFO] [stdout] 15 |         Err(m) => { return Err(format!("Error opening file {} for reading: {}", filename, m.to_string())); }
[INFO] [stdout]    |                                                                                            ^^^^^^^^^^^^ help: remove this
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#to_string_in_format_args
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `to_string` applied to a type that implements `Display` in `format!` args
[INFO] [stdout]   --> src/files.rs:26:92
[INFO] [stdout]    |
[INFO] [stdout] 26 |         Err(m) => { return Err(format!("Error opening file {} for writing: {}", filename, m.to_string())); }
[INFO] [stdout]    |                                                                                            ^^^^^^^^^^^^ help: remove this
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#to_string_in_format_args
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]   --> src/protocol.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 71 | /         match stream.write_all(&buf) {
[INFO] [stdout] 72 | |             Err(e) => {
[INFO] [stdout] 73 | |                 match e.kind() {
[INFO] [stdout] 74 | |                     WouldBlock | TimedOut => {return Err("requst timeout".to_string());}
[INFO] [stdout] ...  |
[INFO] [stdout] 78 | |             Ok(_) => {},
[INFO] [stdout] 79 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout]    = note: `#[warn(clippy::single_match)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 71 ~         if let Err(e) = stream.write_all(&buf) {
[INFO] [stdout] 72 +             match e.kind() {
[INFO] [stdout] 73 +                 WouldBlock | TimedOut => {return Err("requst timeout".to_string());}
[INFO] [stdout] 74 +                 _ => { panic!("something is seriously wrong"); },
[INFO] [stdout] 75 +             }
[INFO] [stdout] 76 +         }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]   --> src/protocol.rs:84:9
[INFO] [stdout]    |
[INFO] [stdout] 84 | /         match stream.read_exact(&mut buf) {
[INFO] [stdout] 85 | |             Err(e) => {
[INFO] [stdout] 86 | |                 match e.kind() {
[INFO] [stdout] 87 | |                     WouldBlock | TimedOut => {return Err("requst timeout".to_string());}
[INFO] [stdout] ...  |
[INFO] [stdout] 91 | |             Ok(_) => {},
[INFO] [stdout] 92 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 84 ~         if let Err(e) = stream.read_exact(&mut buf) {
[INFO] [stdout] 85 +             match e.kind() {
[INFO] [stdout] 86 +                 WouldBlock | TimedOut => {return Err("requst timeout".to_string());}
[INFO] [stdout] 87 +                 _ => { panic!("something is seriously wrong"); },
[INFO] [stdout] 88 +             }
[INFO] [stdout] 89 +         }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/protocol.rs:119:9
[INFO] [stdout]     |
[INFO] [stdout] 119 | /         match stream.write_all(&buf) {
[INFO] [stdout] 120 | |             Err(e) => {
[INFO] [stdout] 121 | |                 match e.kind() {
[INFO] [stdout] 122 | |                     WouldBlock | TimedOut => {return Err("requst timeout".to_string());}
[INFO] [stdout] ...   |
[INFO] [stdout] 126 | |             Ok(_) => {},
[INFO] [stdout] 127 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 119 ~         if let Err(e) = stream.write_all(&buf) {
[INFO] [stdout] 120 +             match e.kind() {
[INFO] [stdout] 121 +                 WouldBlock | TimedOut => {return Err("requst timeout".to_string());}
[INFO] [stdout] 122 +                 _ => { panic!("something is seriously wrong"); },
[INFO] [stdout] 123 +             }
[INFO] [stdout] 124 +         }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/protocol.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 | /         match stream.read_exact(&mut buf) {
[INFO] [stdout] 133 | |             Err(e) => {
[INFO] [stdout] 134 | |                 match e.kind() {
[INFO] [stdout] 135 | |                     WouldBlock | TimedOut => {return Err("requst timeout".to_string());}
[INFO] [stdout] ...   |
[INFO] [stdout] 139 | |             Ok(_) => {},
[INFO] [stdout] 140 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 132 ~         if let Err(e) = stream.read_exact(&mut buf) {
[INFO] [stdout] 133 +             match e.kind() {
[INFO] [stdout] 134 +                 WouldBlock | TimedOut => {return Err("requst timeout".to_string());}
[INFO] [stdout] 135 +                 _ => { panic!("something is seriously wrong"); },
[INFO] [stdout] 136 +             }
[INFO] [stdout] 137 +         }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/protocol.rs:191:9
[INFO] [stdout]     |
[INFO] [stdout] 191 | /         match stream.write_all(buf){
[INFO] [stdout] 192 | |             Err(e) => {
[INFO] [stdout] 193 | |                 match e.kind() {
[INFO] [stdout] 194 | |                     WouldBlock | TimedOut => {return Err("requst timeout".to_string());}
[INFO] [stdout] ...   |
[INFO] [stdout] 198 | |             Ok(_) => {},
[INFO] [stdout] 199 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 191 ~         if let Err(e) = stream.write_all(buf) {
[INFO] [stdout] 192 +             match e.kind() {
[INFO] [stdout] 193 +                 WouldBlock | TimedOut => {return Err("requst timeout".to_string());}
[INFO] [stdout] 194 +                 _ => { panic!("something is seriously wrong"); },
[INFO] [stdout] 195 +             }
[INFO] [stdout] 196 +         }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/protocol.rs:205:9
[INFO] [stdout]     |
[INFO] [stdout] 205 | /         match stream.read_exact(&mut buf){
[INFO] [stdout] 206 | |             Err(e) => {
[INFO] [stdout] 207 | |                 match e.kind() {
[INFO] [stdout] 208 | |                     WouldBlock | TimedOut => {return Err("requst timeout".to_string());}
[INFO] [stdout] ...   |
[INFO] [stdout] 212 | |             Ok(_) => {},
[INFO] [stdout] 213 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 205 ~         if let Err(e) = stream.read_exact(&mut buf) {
[INFO] [stdout] 206 +             match e.kind() {
[INFO] [stdout] 207 +                 WouldBlock | TimedOut => {return Err("requst timeout".to_string());}
[INFO] [stdout] 208 +                 _ => { panic!("something is seriously wrong"); },
[INFO] [stdout] 209 +             }
[INFO] [stdout] 210 +         }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/protocol.rs:237:9
[INFO] [stdout]     |
[INFO] [stdout] 237 | /         match stream.read_exact(&mut buf2[..]) {
[INFO] [stdout] 238 | |         Err(e) => {
[INFO] [stdout] 239 | |             match e.kind() {
[INFO] [stdout] 240 | |                 WouldBlock | TimedOut => {return Err("requst timeout".to_string());}
[INFO] [stdout] ...   |
[INFO] [stdout] 244 | |         Ok(_) => {},
[INFO] [stdout] 245 | |         };
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 237 ~         if let Err(e) = stream.read_exact(&mut buf2[..]) {
[INFO] [stdout] 238 +             match e.kind() {
[INFO] [stdout] 239 +                 WouldBlock | TimedOut => {return Err("requst timeout".to_string());}
[INFO] [stdout] 240 +                 _ => { panic!("something is seriously wrong"); },
[INFO] [stdout] 241 +             }
[INFO] [stdout] 242 ~         };
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/protocol.rs:249:9
[INFO] [stdout]     |
[INFO] [stdout] 249 | /         match stream.read_exact(&mut hash){
[INFO] [stdout] 250 | |         Err(e) => {
[INFO] [stdout] 251 | |             match e.kind() {
[INFO] [stdout] 252 | |                 WouldBlock | TimedOut => {return Err("requst timeout".to_string());}
[INFO] [stdout] ...   |
[INFO] [stdout] 256 | |         Ok(_) => {},
[INFO] [stdout] 257 | |         };
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 249 ~         if let Err(e) = stream.read_exact(&mut hash) {
[INFO] [stdout] 250 +             match e.kind() {
[INFO] [stdout] 251 +                 WouldBlock | TimedOut => {return Err("requst timeout".to_string());}
[INFO] [stdout] 252 +                 _ => { panic!("something is seriously wrong"); },
[INFO] [stdout] 253 +             }
[INFO] [stdout] 254 ~         };
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `to_string` applied to a type that implements `Display` in `format!` args
[INFO] [stdout]    --> src/protocol.rs:368:77
[INFO] [stdout]     |
[INFO] [stdout] 368 |             Err(m) => {return Err(format!("Error while opening file: {:}", m.to_string()));}
[INFO] [stdout]     |                                                                             ^^^^^^^^^^^^ help: remove this
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#to_string_in_format_args
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stdout]    --> src/protocol.rs:385:49
[INFO] [stdout]     |
[INFO] [stdout] 385 |   fn protocol_adjust_recv(mut peer: TcpStream) -> Result<(Box<dyn Read>,
[INFO] [stdout]     |  _________________________________________________^
[INFO] [stdout] 386 | |                                                         Option<FileHeader>,
[INFO] [stdout] 387 | |                                                         ProtocolTable), String>{
[INFO] [stdout]     | |_______________________________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stdout]     = note: `#[warn(clippy::type_complexity)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `to_string` applied to a type that implements `Display` in `format!` args
[INFO] [stdout]    --> src/protocol.rs:412:86
[INFO] [stdout]     |
[INFO] [stdout] 412 |             Err(m) => {return Err(format!("Error while receiving file header: {:}", m.to_string()));}
[INFO] [stdout]     |                                                                                      ^^^^^^^^^^^^ help: remove this
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#to_string_in_format_args
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/protocol.rs:438:5
[INFO] [stdout]     |
[INFO] [stdout] 438 |     return [0u8; 32];
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 438 -     return [0u8; 32];
[INFO] [stdout] 438 +     [0u8; 32]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting to the same type is unnecessary (`u64` -> `u64`)
[INFO] [stdout]    --> src/protocol.rs:446:16
[INFO] [stdout]     |
[INFO] [stdout] 446 |     let size = file.metadata()?.len() as u64;
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `file.metadata()?.len()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast
[INFO] [stdout]     = note: `#[warn(clippy::unnecessary_cast)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/protocol.rs:470:5
[INFO] [stdout]     |
[INFO] [stdout] 470 |     return s;
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 470 -     return s;
[INFO] [stdout] 470 +     s
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` statement can be collapsed
[INFO] [stdout]    --> src/protocol.rs:524:9
[INFO] [stdout]     |
[INFO] [stdout] 524 | /         if counter == 0 {
[INFO] [stdout] 525 | |             if filename != "stdin" {
[INFO] [stdout] 526 | |                 let micros = now.elapsed().unwrap().as_micros() as u64;
[INFO] [stdout] 527 | |                 let speed = (bufflen_acc * 1_000_000) as f64 / micros as f64;
[INFO] [stdout] ...   |
[INFO] [stdout] 534 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stdout]     = note: `#[warn(clippy::collapsible_if)]` on by default
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]     |
[INFO] [stdout] 524 ~         if counter == 0
[INFO] [stdout] 525 ~             && filename != "stdin" {
[INFO] [stdout] 526 |                 let micros = now.elapsed().unwrap().as_micros() as u64;
[INFO] [stdout] ...
[INFO] [stdout] 532 |
[INFO] [stdout] 533 ~             }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/protocol.rs:535:9
[INFO] [stdout]     |
[INFO] [stdout] 535 | /         match sender.write_all(&buff[0..bufflen]) {
[INFO] [stdout] 536 | |             Err(e) => {
[INFO] [stdout] 537 | |                 match e.kind() {
[INFO] [stdout] 538 | |                     WouldBlock | TimedOut | ConnectionReset => {
[INFO] [stdout] ...   |
[INFO] [stdout] 545 | |             Ok(_)=>{}
[INFO] [stdout] 546 | |         };
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 535 ~         if let Err(e) = sender.write_all(&buff[0..bufflen]) {
[INFO] [stdout] 536 +             match e.kind() {
[INFO] [stdout] 537 +                 WouldBlock | TimedOut | ConnectionReset => {
[INFO] [stdout] 538 +                     eprintln!("The sender has closed the connection. Aborting transfer.");
[INFO] [stdout] 539 +                     break;
[INFO] [stdout] 540 +                 }
[INFO] [stdout] 541 +                 _ => { panic!("Unexpected network error. Aborting."); },
[INFO] [stdout] 542 +             }
[INFO] [stdout] 543 ~         };
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `unwrap` on `fileheader` after checking its variant with `is_some`
[INFO] [stdout]    --> src/protocol.rs:568:20
[INFO] [stdout]     |
[INFO] [stdout] 567 |     if fileheader.is_some() && filename == "stdin" {
[INFO] [stdout]     |        -------------------- the check is happening here
[INFO] [stdout] 568 |         filename = fileheader.as_ref().unwrap().name.clone();
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: try using `match`
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_unwrap
[INFO] [stdout]     = note: `#[warn(clippy::unnecessary_unwrap)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting to the same type is unnecessary (`f32` -> `f32`)
[INFO] [stdout]    --> src/protocol.rs:626:17
[INFO] [stdout]     |
[INFO] [stdout] 626 |     let ratio = total as f32 / length as f32;
[INFO] [stdout]     |                 ^^^^^^^^^^^^ help: try: `total`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting to the same type is unnecessary (`f32` -> `f32`)
[INFO] [stdout]    --> src/protocol.rs:626:32
[INFO] [stdout]     |
[INFO] [stdout] 626 |     let ratio = total as f32 / length as f32;
[INFO] [stdout]     |                                ^^^^^^^^^^^^^ help: try: `length`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.31s
[INFO] running `Command { std: "docker" "inspect" "b3f21bba1b32703ed3b10bff579ddfcba7f562920e3e49f3ca8891cc1c129fd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3f21bba1b32703ed3b10bff579ddfcba7f562920e3e49f3ca8891cc1c129fd0", kill_on_drop: false }`
[INFO] [stdout] b3f21bba1b32703ed3b10bff579ddfcba7f562920e3e49f3ca8891cc1c129fd0