[INFO] updating cached repository pontuslaestadius/ftp-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/pontuslaestadius/ftp-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/pontuslaestadius/ftp-rust" "work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/pontuslaestadius/ftp-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/pontuslaestadius/ftp-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/pontuslaestadius/ftp-rust" "work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/pontuslaestadius/ftp-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/pontuslaestadius/ftp-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 10ae254549c0d4c88f0f4e7c91e132405818891b
[INFO] sha for GitHub repo pontuslaestadius/ftp-rust: 10ae254549c0d4c88f0f4e7c91e132405818891b
[INFO] validating manifest of pontuslaestadius/ftp-rust on toolchain master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of pontuslaestadius/ftp-rust on toolchain try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing pontuslaestadius/ftp-rust
[INFO] finished frobbing pontuslaestadius/ftp-rust
[INFO] frobbed toml for pontuslaestadius/ftp-rust written to work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/pontuslaestadius/ftp-rust/Cargo.toml
[INFO] started frobbing pontuslaestadius/ftp-rust
[INFO] finished frobbing pontuslaestadius/ftp-rust
[INFO] frobbed toml for pontuslaestadius/ftp-rust written to work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/pontuslaestadius/ftp-rust/Cargo.toml
[INFO] crate pontuslaestadius/ftp-rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking pontuslaestadius/ftp-rust against master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7 for pr-59199
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-59199/worker-6/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/pontuslaestadius/ftp-rust:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ffb1b34433940431a6da9307ae7ca2071633d86a8d146f09963f8d8eebcaed3e
[INFO] running `"docker" "start" "-a" "ffb1b34433940431a6da9307ae7ca2071633d86a8d146f09963f8d8eebcaed3e"`
[INFO] [stderr]     Checking ftp-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `File`
[INFO] [stderr]  --> src/ftp/mod.rs:4:15
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::fs::{File, OpenOptions};
[INFO] [stderr]   |               ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `File`, `OpenOptions`
[INFO] [stderr]  --> src/ftp/server/mod.rs:3:15
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::fs::{File, OpenOptions};
[INFO] [stderr]   |               ^^^^  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time`
[INFO] [stderr]  --> src/ftp/server/mod.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::time;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::net::TcpStream`
[INFO] [stderr]  --> src/ftp/decode.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::net::TcpStream;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `OpenOptions`
[INFO] [stderr]  --> src/ftp/decode.rs:4:21
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::fs::{File, OpenOptions};
[INFO] [stderr]   |                     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::net::TcpStream`
[INFO] [stderr]  --> src/ftp/encode.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::net::TcpStream;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `OpenOptions`
[INFO] [stderr]  --> src/ftp/encode.rs:4:21
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::fs::{File, OpenOptions};
[INFO] [stderr]   |                     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `File`
[INFO] [stderr]  --> src/ftp/mod.rs:4:15
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::fs::{File, OpenOptions};
[INFO] [stderr]   |               ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `File`, `OpenOptions`
[INFO] [stderr]  --> src/ftp/server/mod.rs:3:15
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::fs::{File, OpenOptions};
[INFO] [stderr]   |               ^^^^  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time`
[INFO] [stderr]  --> src/ftp/server/mod.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::time;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::net::TcpStream`
[INFO] [stderr]  --> src/ftp/decode.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::net::TcpStream;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `OpenOptions`
[INFO] [stderr]  --> src/ftp/decode.rs:4:21
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::fs::{File, OpenOptions};
[INFO] [stderr]   |                     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::net::TcpStream`
[INFO] [stderr]  --> src/ftp/encode.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::net::TcpStream;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `OpenOptions`
[INFO] [stderr]  --> src/ftp/encode.rs:4:21
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::fs::{File, OpenOptions};
[INFO] [stderr]   |                     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::prelude`
[INFO] [stderr]  --> src/ftp/server/mod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]   --> src/ftp/mod.rs:55:21
[INFO] [stderr]    |
[INFO] [stderr] 55 | pub fn start_server(address: &str, port: &str) {
[INFO] [stderr]    |                     ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `port`
[INFO] [stderr]   --> src/ftp/mod.rs:55:36
[INFO] [stderr]    |
[INFO] [stderr] 55 | pub fn start_server(address: &str, port: &str) {
[INFO] [stderr]    |                                    ^^^^ help: consider prefixing with an underscore: `_port`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `string`
[INFO] [stderr]   --> src/ftp/server/mod.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let mut string: String = String::new();
[INFO] [stderr]    |             ^^^^^^ help: consider prefixing with an underscore: `_string`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]   --> src/ftp/server/mod.rs:28:13
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let mut c: usize;
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `stream`
[INFO] [stderr]   --> src/ftp/server/mod.rs:46:22
[INFO] [stderr]    |
[INFO] [stderr] 46 | fn notify_client_err(stream: &mut TcpStream, error: io::Error) {
[INFO] [stderr]    |                      ^^^^^^ help: consider prefixing with an underscore: `_stream`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]  --> src/ftp/client/mod.rs:8:14
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn start(address: &str) {
[INFO] [stderr]   |              ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `client`
[INFO] [stderr]   --> src/ftp/client/mod.rs:30:26
[INFO] [stderr]    |
[INFO] [stderr] 30 |         let (mut stream, client) = super::client::new(self.address)?;
[INFO] [stderr]    |                          ^^^^^^ help: consider prefixing with an underscore: `_client`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `decoded_size` is assigned to, but never used
[INFO] [stderr]   --> src/ftp/decode.rs:15:13
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let mut decoded_size: &str = "";
[INFO] [stderr]    |             ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_decoded_size` instead
[INFO] [stderr] 
[INFO] [stderr] warning: variable `decoded_pktn` is assigned to, but never used
[INFO] [stderr]   --> src/ftp/decode.rs:16:13
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let mut decoded_pktn: &str = "";
[INFO] [stderr]    |             ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_decoded_pktn` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `decoded_size` is never read
[INFO] [stderr]   --> src/ftp/decode.rs:40:27
[INFO] [stderr]    |
[INFO] [stderr] 40 |                 "size" => decoded_size = value,
[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: value assigned to `decoded_pktn` is never read
[INFO] [stderr]   --> src/ftp/decode.rs:41:27
[INFO] [stderr]    |
[INFO] [stderr] 41 |                 "pktn" => decoded_pktn = value,
[INFO] [stderr]    |                           ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `size`
[INFO] [stderr]   --> src/ftp/encode.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |     let size = content.len();
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_size`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/ftp/mod.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |     let mut f = OpenOptions::new()
[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/ftp/mod.rs:124:9
[INFO] [stderr]     |
[INFO] [stderr] 124 |     let mut files = "examples/files/foo.txt";
[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/ftp/server/mod.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let mut string: String = String::new();
[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/ftp/server/mod.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let mut c: usize;
[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/ftp/client/mod.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 |     let mut stream = super::connect(address)?;
[INFO] [stderr]    |         ----^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::prelude`
[INFO] [stderr]  --> src/ftp/server/mod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/ftp/decode.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 |         let mut rows = section2.next().unwrap().split(';');
[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/ftp/encode.rs:24:53
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub fn from_meta_data(metadata: metadata::Metadata, mut content: &mut String) -> Result<Vec<String>, io::Error> {
[INFO] [stderr]    |                                                     ----^^^^^^^
[INFO] [stderr]    |                                                     |
[INFO] [stderr]    |                                                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/ftp/client/mod.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 |             self.action(input.as_str());
[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/ftp/encode.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     file.read_to_string(&mut content);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]   --> src/ftp/mod.rs:55:21
[INFO] [stderr]    |
[INFO] [stderr] 55 | pub fn start_server(address: &str, port: &str) {
[INFO] [stderr]    |                     ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `port`
[INFO] [stderr]   --> src/ftp/mod.rs:55:36
[INFO] [stderr]    |
[INFO] [stderr] 55 | pub fn start_server(address: &str, port: &str) {
[INFO] [stderr]    |                                    ^^^^ help: consider prefixing with an underscore: `_port`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `string`
[INFO] [stderr]   --> src/ftp/server/mod.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let mut string: String = String::new();
[INFO] [stderr]    |             ^^^^^^ help: consider prefixing with an underscore: `_string`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]   --> src/ftp/server/mod.rs:28:13
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let mut c: usize;
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `stream`
[INFO] [stderr]   --> src/ftp/server/mod.rs:46:22
[INFO] [stderr]    |
[INFO] [stderr] 46 | fn notify_client_err(stream: &mut TcpStream, error: io::Error) {
[INFO] [stderr]    |                      ^^^^^^ help: consider prefixing with an underscore: `_stream`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]  --> src/ftp/client/mod.rs:8:14
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn start(address: &str) {
[INFO] [stderr]   |              ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `client`
[INFO] [stderr]   --> src/ftp/client/mod.rs:30:26
[INFO] [stderr]    |
[INFO] [stderr] 30 |         let (mut stream, client) = super::client::new(self.address)?;
[INFO] [stderr]    |                          ^^^^^^ help: consider prefixing with an underscore: `_client`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `decoded_size` is assigned to, but never used
[INFO] [stderr]   --> src/ftp/decode.rs:15:13
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let mut decoded_size: &str = "";
[INFO] [stderr]    |             ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_decoded_size` instead
[INFO] [stderr] 
[INFO] [stderr] warning: variable `decoded_pktn` is assigned to, but never used
[INFO] [stderr]   --> src/ftp/decode.rs:16:13
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let mut decoded_pktn: &str = "";
[INFO] [stderr]    |             ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_decoded_pktn` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `decoded_size` is never read
[INFO] [stderr]   --> src/ftp/decode.rs:40:27
[INFO] [stderr]    |
[INFO] [stderr] 40 |                 "size" => decoded_size = value,
[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: value assigned to `decoded_pktn` is never read
[INFO] [stderr]   --> src/ftp/decode.rs:41:27
[INFO] [stderr]    |
[INFO] [stderr] 41 |                 "pktn" => decoded_pktn = value,
[INFO] [stderr]    |                           ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `size`
[INFO] [stderr]   --> src/ftp/encode.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |     let size = content.len();
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_size`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/ftp/mod.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |     let mut f = OpenOptions::new()
[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/ftp/mod.rs:124:9
[INFO] [stderr]     |
[INFO] [stderr] 124 |     let mut files = "examples/files/foo.txt";
[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/ftp/server/mod.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let mut string: String = String::new();
[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/ftp/server/mod.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let mut c: usize;
[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/ftp/client/mod.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 |     let mut stream = super::connect(address)?;
[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/ftp/decode.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 |         let mut rows = section2.next().unwrap().split(';');
[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/ftp/encode.rs:24:53
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub fn from_meta_data(metadata: metadata::Metadata, mut content: &mut String) -> Result<Vec<String>, io::Error> {
[INFO] [stderr]    |                                                     ----^^^^^^^
[INFO] [stderr]    |                                                     |
[INFO] [stderr]    |                                                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/ftp/client/mod.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 |             self.action(input.as_str());
[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/ftp/encode.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     file.read_to_string(&mut content);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `File`
[INFO] [stderr]  --> src/ftp/mod.rs:4:15
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::fs::{File, OpenOptions};
[INFO] [stderr]   |               ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `File`, `OpenOptions`
[INFO] [stderr]  --> src/ftp/server/mod.rs:3:15
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::fs::{File, OpenOptions};
[INFO] [stderr]   |               ^^^^  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time`
[INFO] [stderr]  --> src/ftp/server/mod.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::time;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::net::TcpStream`
[INFO] [stderr]  --> src/ftp/decode.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::net::TcpStream;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `OpenOptions`
[INFO] [stderr]  --> src/ftp/decode.rs:4:21
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::fs::{File, OpenOptions};
[INFO] [stderr]   |                     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::net::TcpStream`
[INFO] [stderr]  --> src/ftp/encode.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::net::TcpStream;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `OpenOptions`
[INFO] [stderr]  --> src/ftp/encode.rs:4:21
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::fs::{File, OpenOptions};
[INFO] [stderr]   |                     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `File`
[INFO] [stderr]  --> src/ftp/mod.rs:4:15
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::fs::{File, OpenOptions};
[INFO] [stderr]   |               ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `File`, `OpenOptions`
[INFO] [stderr]  --> src/ftp/server/mod.rs:3:15
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::fs::{File, OpenOptions};
[INFO] [stderr]   |               ^^^^  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time`
[INFO] [stderr]  --> src/ftp/server/mod.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::time;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::net::TcpStream`
[INFO] [stderr]  --> src/ftp/decode.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::net::TcpStream;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `OpenOptions`
[INFO] [stderr]  --> src/ftp/decode.rs:4:21
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::fs::{File, OpenOptions};
[INFO] [stderr]   |                     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::net::TcpStream`
[INFO] [stderr]  --> src/ftp/encode.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::net::TcpStream;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `OpenOptions`
[INFO] [stderr]  --> src/ftp/encode.rs:4:21
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::fs::{File, OpenOptions};
[INFO] [stderr]   |                     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::prelude`
[INFO] [stderr]  --> src/ftp/server/mod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]   --> src/ftp/mod.rs:55:21
[INFO] [stderr]    |
[INFO] [stderr] 55 | pub fn start_server(address: &str, port: &str) {
[INFO] [stderr]    |                     ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `port`
[INFO] [stderr]   --> src/ftp/mod.rs:55:36
[INFO] [stderr]    |
[INFO] [stderr] 55 | pub fn start_server(address: &str, port: &str) {
[INFO] [stderr]    |                                    ^^^^ help: consider prefixing with an underscore: `_port`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `string`
[INFO] [stderr]   --> src/ftp/server/mod.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let mut string: String = String::new();
[INFO] [stderr]    |             ^^^^^^ help: consider prefixing with an underscore: `_string`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]   --> src/ftp/server/mod.rs:28:13
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let mut c: usize;
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `stream`
[INFO] [stderr]   --> src/ftp/server/mod.rs:46:22
[INFO] [stderr]    |
[INFO] [stderr] 46 | fn notify_client_err(stream: &mut TcpStream, error: io::Error) {
[INFO] [stderr]    |                      ^^^^^^ help: consider prefixing with an underscore: `_stream`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]  --> src/ftp/client/mod.rs:8:14
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn start(address: &str) {
[INFO] [stderr]   |              ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `client`
[INFO] [stderr]   --> src/ftp/client/mod.rs:30:26
[INFO] [stderr]    |
[INFO] [stderr] 30 |         let (mut stream, client) = super::client::new(self.address)?;
[INFO] [stderr]    |                          ^^^^^^ help: consider prefixing with an underscore: `_client`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `decoded_size` is assigned to, but never used
[INFO] [stderr]   --> src/ftp/decode.rs:15:13
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let mut decoded_size: &str = "";
[INFO] [stderr]    |             ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_decoded_size` instead
[INFO] [stderr] 
[INFO] [stderr] warning: variable `decoded_pktn` is assigned to, but never used
[INFO] [stderr]   --> src/ftp/decode.rs:16:13
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let mut decoded_pktn: &str = "";
[INFO] [stderr]    |             ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_decoded_pktn` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `decoded_size` is never read
[INFO] [stderr]   --> src/ftp/decode.rs:40:27
[INFO] [stderr]    |
[INFO] [stderr] 40 |                 "size" => decoded_size = value,
[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: value assigned to `decoded_pktn` is never read
[INFO] [stderr]   --> src/ftp/decode.rs:41:27
[INFO] [stderr]    |
[INFO] [stderr] 41 |                 "pktn" => decoded_pktn = value,
[INFO] [stderr]    |                           ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `size`
[INFO] [stderr]   --> src/ftp/encode.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |     let size = content.len();
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_size`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::prelude`
[INFO] [stderr]  --> src/ftp/server/mod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/ftp/mod.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |     let mut f = OpenOptions::new()
[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: unused variable: `address`
[INFO] [stderr]   --> src/ftp/mod.rs:55:21
[INFO] [stderr]    |
[INFO] [stderr] 55 | pub fn start_server(address: &str, port: &str) {
[INFO] [stderr]    |                     ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `port`
[INFO] [stderr]   --> src/ftp/mod.rs:55:36
[INFO] [stderr]    |
[INFO] [stderr] 55 | pub fn start_server(address: &str, port: &str) {
[INFO] [stderr]    |                                    ^^^^ help: consider prefixing with an underscore: `_port`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `string`
[INFO] [stderr]   --> src/ftp/server/mod.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let mut string: String = String::new();
[INFO] [stderr]    |             ^^^^^^ help: consider prefixing with an underscore: `_string`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]   --> src/ftp/server/mod.rs:28:13
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let mut c: usize;
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `stream`
[INFO] [stderr]   --> src/ftp/server/mod.rs:46:22
[INFO] [stderr]    |
[INFO] [stderr] 46 | fn notify_client_err(stream: &mut TcpStream, error: io::Error) {
[INFO] [stderr]    |                      ^^^^^^ help: consider prefixing with an underscore: `_stream`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]  --> src/ftp/client/mod.rs:8:14
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn start(address: &str) {
[INFO] [stderr]   |              ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `client`
[INFO] [stderr]   --> src/ftp/client/mod.rs:30:26
[INFO] [stderr]    |
[INFO] [stderr] 30 |         let (mut stream, client) = super::client::new(self.address)?;
[INFO] [stderr]    |                          ^^^^^^ help: consider prefixing with an underscore: `_client`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `decoded_size` is assigned to, but never used
[INFO] [stderr]   --> src/ftp/decode.rs:15:13
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let mut decoded_size: &str = "";
[INFO] [stderr]    |             ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_decoded_size` instead
[INFO] [stderr] 
[INFO] [stderr] warning: variable `decoded_pktn` is assigned to, but never used
[INFO] [stderr]   --> src/ftp/decode.rs:16:13
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let mut decoded_pktn: &str = "";
[INFO] [stderr]    |             ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_decoded_pktn` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `decoded_size` is never read
[INFO] [stderr]   --> src/ftp/decode.rs:40:27
[INFO] [stderr]    |
[INFO] [stderr] 40 |                 "size" => decoded_size = value,
[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: value assigned to `decoded_pktn` is never read
[INFO] [stderr]   --> src/ftp/decode.rs:41:27
[INFO] [stderr]    |
[INFO] [stderr] 41 |                 "pktn" => decoded_pktn = value,
[INFO] [stderr]    |                           ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `size`
[INFO] [stderr]   --> src/ftp/encode.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |     let size = content.len();
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_size`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ftp/mod.rs:124:9
[INFO] [stderr]     |
[INFO] [stderr] 124 |     let mut files = "examples/files/foo.txt";
[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/ftp/mod.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |     let mut f = OpenOptions::new()
[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/ftp/server/mod.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let mut string: String = String::new();
[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/ftp/server/mod.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let mut c: usize;
[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/ftp/client/mod.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 |     let mut stream = super::connect(address)?;
[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/ftp/mod.rs:124:9
[INFO] [stderr]     |
[INFO] [stderr] 124 |     let mut files = "examples/files/foo.txt";
[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/ftp/decode.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 |         let mut rows = section2.next().unwrap().split(';');
[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/ftp/encode.rs:24:53
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub fn from_meta_data(metadata: metadata::Metadata, mut content: &mut String) -> Result<Vec<String>, io::Error> {
[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/ftp/server/mod.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let mut string: String = String::new();
[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/ftp/server/mod.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let mut c: usize;
[INFO] [stderr]    |         ----^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/ftp/client/mod.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 |             self.action(input.as_str());
[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/ftp/encode.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     file.read_to_string(&mut content);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/ftp/client/mod.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 |     let mut stream = super::connect(address)?;
[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/ftp/decode.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 |         let mut rows = section2.next().unwrap().split(';');
[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/ftp/encode.rs:24:53
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub fn from_meta_data(metadata: metadata::Metadata, mut content: &mut String) -> Result<Vec<String>, io::Error> {
[INFO] [stderr]    |                                                     ----^^^^^^^
[INFO] [stderr]    |                                                     |
[INFO] [stderr]    |                                                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/ftp/client/mod.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 |             self.action(input.as_str());
[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/ftp/encode.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     file.read_to_string(&mut content);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.29s
[INFO] running `"docker" "inspect" "ffb1b34433940431a6da9307ae7ca2071633d86a8d146f09963f8d8eebcaed3e"`
[INFO] running `"docker" "rm" "-f" "ffb1b34433940431a6da9307ae7ca2071633d86a8d146f09963f8d8eebcaed3e"`
[INFO] [stdout] ffb1b34433940431a6da9307ae7ca2071633d86a8d146f09963f8d8eebcaed3e