[INFO] updating cached repository lukemckinstry/rust-ps2
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/lukemckinstry/rust-ps2
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/lukemckinstry/rust-ps2" "work/ex/clippy-test-run/sources/stable/gh/lukemckinstry/rust-ps2"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/lukemckinstry/rust-ps2'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/lukemckinstry/rust-ps2" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/lukemckinstry/rust-ps2"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/lukemckinstry/rust-ps2'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 56e2b5bac122bed12edf6ba0037a2eb774d5d065
[INFO] sha for GitHub repo lukemckinstry/rust-ps2: 56e2b5bac122bed12edf6ba0037a2eb774d5d065
[INFO] validating manifest of lukemckinstry/rust-ps2 on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of lukemckinstry/rust-ps2 on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing lukemckinstry/rust-ps2
[INFO] finished frobbing lukemckinstry/rust-ps2
[INFO] frobbed toml for lukemckinstry/rust-ps2 written to work/ex/clippy-test-run/sources/stable/gh/lukemckinstry/rust-ps2/Cargo.toml
[INFO] started frobbing lukemckinstry/rust-ps2
[INFO] finished frobbing lukemckinstry/rust-ps2
[INFO] frobbed toml for lukemckinstry/rust-ps2 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/lukemckinstry/rust-ps2/Cargo.toml
[INFO] crate lukemckinstry/rust-ps2 has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting lukemckinstry/rust-ps2 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-2/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/lukemckinstry/rust-ps2:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 47e719b9c0676dcbb6d0d5169aee3bb0a37598a6b73213dd9df9febe3f6db9d8
[INFO] running `"docker" "start" "-a" "47e719b9c0676dcbb6d0d5169aee3bb0a37598a6b73213dd9df9febe3f6db9d8"`
[INFO] [stderr]     Checking ps2 v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `FromRawFd`, `IntoRawFd`
[INFO] [stderr]   --> src/main.rs:25:25
[INFO] [stderr]    |
[INFO] [stderr] 25 | use std::os::unix::io::{FromRawFd, IntoRawFd};
[INFO] [stderr]    |                         ^^^^^^^^^  ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `FromRawFd`, `IntoRawFd`
[INFO] [stderr]   --> src/main.rs:25:25
[INFO] [stderr]    |
[INFO] [stderr] 25 | use std::os::unix::io::{FromRawFd, IntoRawFd};
[INFO] [stderr]    |                         ^^^^^^^^^  ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/main.rs:137:18
[INFO] [stderr]     |
[INFO] [stderr] 137 |             Some(i) => true,
[INFO] [stderr]     |                  ^ help: consider using `_i` instead
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `last_pipe`
[INFO] [stderr]    --> src/main.rs:154:13
[INFO] [stderr]     |
[INFO] [stderr] 154 |         let last_pipe: bool;
[INFO] [stderr]     |             ^^^^^^^^^ help: consider using `_last_pipe` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `file`
[INFO] [stderr]    --> src/main.rs:232:13
[INFO] [stderr]     |
[INFO] [stderr] 232 |         let file = File::create(logfile)?;
[INFO] [stderr]     |             ^^^^ help: consider using `_file` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `process`
[INFO] [stderr]    --> src/main.rs:235:17
[INFO] [stderr]     |
[INFO] [stderr] 235 |             let process = match Command::new(program)
[INFO] [stderr]     |                 ^^^^^^^ help: consider using `_process` instead
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]   --> src/main.rs:48:13
[INFO] [stderr]    |
[INFO] [stderr] 48 |             stdout.write(self.cmd_prompt.as_bytes()).unwrap();
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::unused_io_amount)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: using `clone` on a double-reference; this will copy the reference instead of cloning the inner type
[INFO] [stderr]   --> src/main.rs:57:27
[INFO] [stderr]    |
[INFO] [stderr] 57 |             history.push( cmd_line.clone().to_string() );  //add to history
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::clone_double_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_double_ref
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]    |
[INFO] [stderr] 57 |             history.push( &(*cmd_line).clone().to_string() );  //add to history
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]    |
[INFO] [stderr] 57 |             history.push( &str::clone(cmd_line).to_string() );  //add to history
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/main.rs:65:17
[INFO] [stderr]    |
[INFO] [stderr] 65 | /                 match cd_cmd {
[INFO] [stderr] 66 | |                     Some(cmd_path) => { self.add_cd_stack( cmd_path ); }
[INFO] [stderr] 67 | |                     None => (),
[INFO] [stderr] 68 | |                 }
[INFO] [stderr]    | |_________________^ help: try this: `if let Some(cmd_path) = cd_cmd { self.add_cd_stack( cmd_path ); }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/main.rs:119:38
[INFO] [stderr]     |
[INFO] [stderr] 119 |     fn show_history(&self,  history: &Vec<String> ) {
[INFO] [stderr]     |                                      ^^^^^^^^^^^^ help: change this to: `&[String]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: this `.filter_map` can be written more simply using `.filter`
[INFO] [stderr]    --> src/main.rs:126:31
[INFO] [stderr]     |
[INFO] [stderr] 126 |           let argv: Vec<&str> = cmd_line.split(' ').filter_map(|x| {
[INFO] [stderr]     |  _______________________________^
[INFO] [stderr] 127 | |             if x == "" {
[INFO] [stderr] 128 | |                 None
[INFO] [stderr] 129 | |             } else {
[INFO] [stderr] 130 | |                 Some(x)
[INFO] [stderr] 131 | |             }
[INFO] [stderr] 132 | |         }).collect();
[INFO] [stderr]     | |__________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unnecessary_filter_map)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_filter_map
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:141:9
[INFO] [stderr]     |
[INFO] [stderr] 141 | /         match (argv.first(), index, p, argv.last()) {
[INFO] [stderr] 142 | |             (_,_,true,_) => self.chomp( &argv[..]),
[INFO] [stderr] 143 | |             (Some(&program), Some(logfile),_, Some(&"&")) => self.run_cmd_bkrg_pipe(program, &argv[1..], argv[logfile+1] ),
[INFO] [stderr] 144 | |             (Some(&program), None,_, Some(&"&")) => self.run_cmd_background(program, &argv[1..]),
[INFO] [stderr] 145 | |             (Some(&program),_,_, _) => self.run_cmd(program, &argv[1..]),
[INFO] [stderr] 146 | |             _ => Ok(()),
[INFO] [stderr] 147 | |         };
[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: single-character string constant used as pattern
[INFO] [stderr]    --> src/main.rs:159:34
[INFO] [stderr]     |
[INFO] [stderr] 159 |                 if s.starts_with("-") {
[INFO] [stderr]     |                                  ^^^ help: try using a char instead: `'-'`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::single_char_pattern)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]    --> src/main.rs:161:42
[INFO] [stderr]     |
[INFO] [stderr] 161 |                 } else if (s.starts_with(">")) | (s.starts_with("|")) {
[INFO] [stderr]     |                                          ^^^ help: try using a char instead: `'>'`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]    --> src/main.rs:161:65
[INFO] [stderr]     |
[INFO] [stderr] 161 |                 } else if (s.starts_with(">")) | (s.starts_with("|")) {
[INFO] [stderr]     |                                                                 ^^^ help: try using a char instead: `'|'`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]    --> src/main.rs:203:35
[INFO] [stderr]     |
[INFO] [stderr] 203 |                 if (s.starts_with(">")) | (s.starts_with("|")) {
[INFO] [stderr]     |                                   ^^^ help: try using a char instead: `'>'`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]    --> src/main.rs:203:58
[INFO] [stderr]     |
[INFO] [stderr] 203 |                 if (s.starts_with(">")) | (s.starts_with("|")) {
[INFO] [stderr]     |                                                          ^^^ help: try using a char instead: `'|'`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]    --> src/main.rs:279:13
[INFO] [stderr]     |
[INFO] [stderr] 279 |             io::stdout().write(&Command::new(program).args(argv).output().unwrap().stdout).unwrap();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `ps2`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/main.rs:137:18
[INFO] [stderr]     |
[INFO] [stderr] 137 |             Some(i) => true,
[INFO] [stderr]     |                  ^ help: consider using `_i` instead
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `last_pipe`
[INFO] [stderr]    --> src/main.rs:154:13
[INFO] [stderr]     |
[INFO] [stderr] 154 |         let last_pipe: bool;
[INFO] [stderr]     |             ^^^^^^^^^ help: consider using `_last_pipe` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `file`
[INFO] [stderr]    --> src/main.rs:232:13
[INFO] [stderr]     |
[INFO] [stderr] 232 |         let file = File::create(logfile)?;
[INFO] [stderr]     |             ^^^^ help: consider using `_file` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `process`
[INFO] [stderr]    --> src/main.rs:235:17
[INFO] [stderr]     |
[INFO] [stderr] 235 |             let process = match Command::new(program)
[INFO] [stderr]     |                 ^^^^^^^ help: consider using `_process` instead
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]   --> src/main.rs:48:13
[INFO] [stderr]    |
[INFO] [stderr] 48 |             stdout.write(self.cmd_prompt.as_bytes()).unwrap();
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::unused_io_amount)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: using `clone` on a double-reference; this will copy the reference instead of cloning the inner type
[INFO] [stderr]   --> src/main.rs:57:27
[INFO] [stderr]    |
[INFO] [stderr] 57 |             history.push( cmd_line.clone().to_string() );  //add to history
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::clone_double_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_double_ref
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]    |
[INFO] [stderr] 57 |             history.push( &(*cmd_line).clone().to_string() );  //add to history
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]    |
[INFO] [stderr] 57 |             history.push( &str::clone(cmd_line).to_string() );  //add to history
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/main.rs:65:17
[INFO] [stderr]    |
[INFO] [stderr] 65 | /                 match cd_cmd {
[INFO] [stderr] 66 | |                     Some(cmd_path) => { self.add_cd_stack( cmd_path ); }
[INFO] [stderr] 67 | |                     None => (),
[INFO] [stderr] 68 | |                 }
[INFO] [stderr]    | |_________________^ help: try this: `if let Some(cmd_path) = cd_cmd { self.add_cd_stack( cmd_path ); }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/main.rs:119:38
[INFO] [stderr]     |
[INFO] [stderr] 119 |     fn show_history(&self,  history: &Vec<String> ) {
[INFO] [stderr]     |                                      ^^^^^^^^^^^^ help: change this to: `&[String]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: this `.filter_map` can be written more simply using `.filter`
[INFO] [stderr]    --> src/main.rs:126:31
[INFO] [stderr]     |
[INFO] [stderr] 126 |           let argv: Vec<&str> = cmd_line.split(' ').filter_map(|x| {
[INFO] [stderr]     |  _______________________________^
[INFO] [stderr] 127 | |             if x == "" {
[INFO] [stderr] 128 | |                 None
[INFO] [stderr] 129 | |             } else {
[INFO] [stderr] 130 | |                 Some(x)
[INFO] [stderr] 131 | |             }
[INFO] [stderr] 132 | |         }).collect();
[INFO] [stderr]     | |__________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unnecessary_filter_map)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_filter_map
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:141:9
[INFO] [stderr]     |
[INFO] [stderr] 141 | /         match (argv.first(), index, p, argv.last()) {
[INFO] [stderr] 142 | |             (_,_,true,_) => self.chomp( &argv[..]),
[INFO] [stderr] 143 | |             (Some(&program), Some(logfile),_, Some(&"&")) => self.run_cmd_bkrg_pipe(program, &argv[1..], argv[logfile+1] ),
[INFO] [stderr] 144 | |             (Some(&program), None,_, Some(&"&")) => self.run_cmd_background(program, &argv[1..]),
[INFO] [stderr] 145 | |             (Some(&program),_,_, _) => self.run_cmd(program, &argv[1..]),
[INFO] [stderr] 146 | |             _ => Ok(()),
[INFO] [stderr] 147 | |         };
[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: single-character string constant used as pattern
[INFO] [stderr]    --> src/main.rs:159:34
[INFO] [stderr]     |
[INFO] [stderr] 159 |                 if s.starts_with("-") {
[INFO] [stderr]     |                                  ^^^ help: try using a char instead: `'-'`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::single_char_pattern)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]    --> src/main.rs:161:42
[INFO] [stderr]     |
[INFO] [stderr] 161 |                 } else if (s.starts_with(">")) | (s.starts_with("|")) {
[INFO] [stderr]     |                                          ^^^ help: try using a char instead: `'>'`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]    --> src/main.rs:161:65
[INFO] [stderr]     |
[INFO] [stderr] 161 |                 } else if (s.starts_with(">")) | (s.starts_with("|")) {
[INFO] [stderr]     |                                                                 ^^^ help: try using a char instead: `'|'`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]    --> src/main.rs:203:35
[INFO] [stderr]     |
[INFO] [stderr] 203 |                 if (s.starts_with(">")) | (s.starts_with("|")) {
[INFO] [stderr]     |                                   ^^^ help: try using a char instead: `'>'`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]    --> src/main.rs:203:58
[INFO] [stderr]     |
[INFO] [stderr] 203 |                 if (s.starts_with(">")) | (s.starts_with("|")) {
[INFO] [stderr]     |                                                          ^^^ help: try using a char instead: `'|'`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]    --> src/main.rs:279:13
[INFO] [stderr]     |
[INFO] [stderr] 279 |             io::stdout().write(&Command::new(program).args(argv).output().unwrap().stdout).unwrap();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `ps2`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "47e719b9c0676dcbb6d0d5169aee3bb0a37598a6b73213dd9df9febe3f6db9d8"`
[INFO] running `"docker" "rm" "-f" "47e719b9c0676dcbb6d0d5169aee3bb0a37598a6b73213dd9df9febe3f6db9d8"`
[INFO] [stdout] 47e719b9c0676dcbb6d0d5169aee3bb0a37598a6b73213dd9df9febe3f6db9d8