[INFO] updating cached repository benschau/rsh
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/benschau/rsh
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/benschau/rsh" "work/ex/clippy-test-run/sources/stable/gh/benschau/rsh"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/benschau/rsh'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/benschau/rsh" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/benschau/rsh"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/benschau/rsh'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 708031b7b7bb7561497d8d2db0be2dcf53d6b113
[INFO] sha for GitHub repo benschau/rsh: 708031b7b7bb7561497d8d2db0be2dcf53d6b113
[INFO] validating manifest of benschau/rsh 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 benschau/rsh 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 benschau/rsh
[INFO] finished frobbing benschau/rsh
[INFO] frobbed toml for benschau/rsh written to work/ex/clippy-test-run/sources/stable/gh/benschau/rsh/Cargo.toml
[INFO] started frobbing benschau/rsh
[INFO] finished frobbing benschau/rsh
[INFO] frobbed toml for benschau/rsh written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/benschau/rsh/Cargo.toml
[INFO] crate benschau/rsh 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 benschau/rsh against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-4/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/benschau/rsh:/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] b5a0649e30240325bc7caa1d527e2c7a480630ac8f16384de9deab2ee40499dd
[INFO] running `"docker" "start" "-a" "b5a0649e30240325bc7caa1d527e2c7a480630ac8f16384de9deab2ee40499dd"`
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking rustyline v1.0.0
[INFO] [stderr]     Checking rsh v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/lib.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Stdio`
[INFO] [stderr]   --> src/lib.rs:11:29
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::process::{Command, Stdio};
[INFO] [stderr]    |                             ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `FromRawFd`, `IntoRawFd`
[INFO] [stderr]   --> src/lib.rs:12:25
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::os::unix::io::{FromRawFd, IntoRawFd};
[INFO] [stderr]    |                         ^^^^^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rustyline::error::ReadlineError`
[INFO] [stderr]   --> src/lib.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use rustyline::error::ReadlineError;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `nix::unistd::pipe`
[INFO] [stderr]   --> src/lib.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | use nix::unistd::pipe;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/builtin.rs:54:8
[INFO] [stderr]    |
[INFO] [stderr] 54 |     Ok((0))
[INFO] [stderr]    |        ^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: Consider removing unnecessary double parentheses
[INFO] [stderr]   --> src/builtin.rs:54:8
[INFO] [stderr]    |
[INFO] [stderr] 54 |     Ok((0))
[INFO] [stderr]    |        ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::double_parens)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#double_parens
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/builtin.rs:61:8
[INFO] [stderr]    |
[INFO] [stderr] 61 |     Ok((env::current_dir().unwrap()))
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: Consider removing unnecessary double parentheses
[INFO] [stderr]   --> src/builtin.rs:61:8
[INFO] [stderr]    |
[INFO] [stderr] 61 |     Ok((env::current_dir().unwrap()))
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#double_parens
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 | /         return Ok(Config { 
[INFO] [stderr] 37 | |                     filetype: conf_type, 
[INFO] [stderr] 38 | |                     filepath: conf_fpath,
[INFO] [stderr] 39 | |                   });
[INFO] [stderr]    | |_____________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 36 |         Ok(Config { 
[INFO] [stderr] 37 |                     filetype: conf_type, 
[INFO] [stderr] 38 |                     filepath: conf_fpath,
[INFO] [stderr] 39 |                   })
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:198:5
[INFO] [stderr]     |
[INFO] [stderr] 198 |     return procs;
[INFO] [stderr]     |     ^^^^^^^^^^^^^ help: remove `return` as shown: `procs`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]    --> src/lib.rs:203:9
[INFO] [stderr]     |
[INFO] [stderr] 203 |     use super::*;
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/lib.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Stdio`
[INFO] [stderr]   --> src/lib.rs:11:29
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::process::{Command, Stdio};
[INFO] [stderr]    |                             ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `FromRawFd`, `IntoRawFd`
[INFO] [stderr]   --> src/lib.rs:12:25
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::os::unix::io::{FromRawFd, IntoRawFd};
[INFO] [stderr]    |                         ^^^^^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rustyline::error::ReadlineError`
[INFO] [stderr]   --> src/lib.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use rustyline::error::ReadlineError;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `nix::unistd::pipe`
[INFO] [stderr]   --> src/lib.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | use nix::unistd::pipe;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/builtin.rs:54:8
[INFO] [stderr]    |
[INFO] [stderr] 54 |     Ok((0))
[INFO] [stderr]    |        ^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: Consider removing unnecessary double parentheses
[INFO] [stderr]   --> src/builtin.rs:54:8
[INFO] [stderr]    |
[INFO] [stderr] 54 |     Ok((0))
[INFO] [stderr]    |        ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::double_parens)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#double_parens
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/builtin.rs:61:8
[INFO] [stderr]    |
[INFO] [stderr] 61 |     Ok((env::current_dir().unwrap()))
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: Consider removing unnecessary double parentheses
[INFO] [stderr]   --> src/builtin.rs:61:8
[INFO] [stderr]    |
[INFO] [stderr] 61 |     Ok((env::current_dir().unwrap()))
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#double_parens
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 | /         return Ok(Config { 
[INFO] [stderr] 37 | |                     filetype: conf_type, 
[INFO] [stderr] 38 | |                     filepath: conf_fpath,
[INFO] [stderr] 39 | |                   });
[INFO] [stderr]    | |_____________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 36 |         Ok(Config { 
[INFO] [stderr] 37 |                     filetype: conf_type, 
[INFO] [stderr] 38 |                     filepath: conf_fpath,
[INFO] [stderr] 39 |                   })
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:198:5
[INFO] [stderr]     |
[INFO] [stderr] 198 |     return procs;
[INFO] [stderr]     |     ^^^^^^^^^^^^^ help: remove `return` as shown: `procs`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `env`
[INFO] [stderr]   --> src/builtin.rs:38:15
[INFO] [stderr]    |
[INFO] [stderr] 38 | pub fn export(env: &[String]) -> Result<(), Box<Error>> {
[INFO] [stderr]    |               ^^^ help: consider using `_env` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `string`
[INFO] [stderr]   --> src/builtin.rs:52:13
[INFO] [stderr]    |
[INFO] [stderr] 52 | pub fn hash(string: &str) -> Result<(u32), Box<Error>> {
[INFO] [stderr]    |             ^^^^^^ help: consider using `_string` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `stdin`
[INFO] [stderr]   --> src/lib.rs:48:9
[INFO] [stderr]    |
[INFO] [stderr] 48 |     let stdin = io::stdin();
[INFO] [stderr]    |         ^^^^^ help: consider using `_stdin` instead
[INFO] [stderr] 
[INFO] [stderr] warning: variable `pwd` is assigned to, but never used
[INFO] [stderr]   --> src/lib.rs:51:13
[INFO] [stderr]    |
[INFO] [stderr] 51 |     let mut pwd: PathBuf;
[INFO] [stderr]    |             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_pwd` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `pwd` is never read
[INFO] [stderr]   --> src/lib.rs:63:9
[INFO] [stderr]    |
[INFO] [stderr] 63 |         pwd = builtin::pwd()?;
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/lib.rs:107:25
[INFO] [stderr]     |
[INFO] [stderr] 107 |                     Err(e) => {
[INFO] [stderr]     |                         ^ help: consider using `_e` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `config`
[INFO] [stderr]   --> src/lib.rs:47:12
[INFO] [stderr]    |
[INFO] [stderr] 47 | pub fn run(config: Config) -> Result<(), Box<Error>> {
[INFO] [stderr]    |            ^^^^^^ help: consider using `_config` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/lib.rs:171:10
[INFO] [stderr]     |
[INFO] [stderr] 171 |     for (i, token) in tokens.iter().enumerate() {
[INFO] [stderr]     |          ^ help: consider using `_i` instead
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:52:9
[INFO] [stderr]    |
[INFO] [stderr] 52 |     let mut running: bool = true;
[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: static item is never used: `HELP`
[INFO] [stderr]   --> src/builtin.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | / static HELP: &'static str = "
[INFO] [stderr] 11 | |     exit - exits the shell.     
[INFO] [stderr] 12 | | ";
[INFO] [stderr]    | |__^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `help`
[INFO] [stderr]   --> src/builtin.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub fn help() {
[INFO] [stderr]    | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `cd`
[INFO] [stderr]   --> src/builtin.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | pub fn cd(path: PathBuf) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `export`
[INFO] [stderr]   --> src/builtin.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | pub fn export(env: &[String]) -> Result<(), Box<Error>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `unset`
[INFO] [stderr]   --> src/builtin.rs:45:1
[INFO] [stderr]    |
[INFO] [stderr] 45 | pub fn unset() -> Result<(), Box<Error>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hash`
[INFO] [stderr]   --> src/builtin.rs:52:1
[INFO] [stderr]    |
[INFO] [stderr] 52 | pub fn hash(string: &str) -> Result<(u32), Box<Error>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `stdin_fd`
[INFO] [stderr]    --> src/lib.rs:121:5
[INFO] [stderr]     |
[INFO] [stderr] 121 |     stdin_fd: c_int,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `stdout_fd`
[INFO] [stderr]    --> src/lib.rs:122:5
[INFO] [stderr]     |
[INFO] [stderr] 122 |     stdout_fd: c_int,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `stderr_fd`
[INFO] [stderr]    --> src/lib.rs:123:5
[INFO] [stderr]     |
[INFO] [stderr] 123 |     stderr_fd: c_int,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_err()`
[INFO] [stderr]   --> src/lib.rs:55:12
[INFO] [stderr]    |
[INFO] [stderr] 55 |       if let Err(_) = r1.load_history(".rsh_history") {
[INFO] [stderr]    |  _____-      ^^^^^^
[INFO] [stderr] 56 | |         println!("No previous history!"); 
[INFO] [stderr] 57 | |     }
[INFO] [stderr]    | |_____- help: try this: `if r1.load_history(".rsh_history").is_err()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_pattern_matching)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] error: Variable in the condition are not mutated in the loop body. This either leads to an infinite or to a never running loop.
[INFO] [stderr]   --> src/lib.rs:62:11
[INFO] [stderr]    |
[INFO] [stderr] 62 |     while running {
[INFO] [stderr]    |           ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::while_immutable_condition)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#while_immutable_condition
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/lib.rs:74:20
[INFO] [stderr]    |
[INFO] [stderr] 74 |                 if line.len() != 0 {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!line.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `rsh`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: unused variable: `env`
[INFO] [stderr]   --> src/builtin.rs:38:15
[INFO] [stderr]    |
[INFO] [stderr] 38 | pub fn export(env: &[String]) -> Result<(), Box<Error>> {
[INFO] [stderr]    |               ^^^ help: consider using `_env` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `string`
[INFO] [stderr]   --> src/builtin.rs:52:13
[INFO] [stderr]    |
[INFO] [stderr] 52 | pub fn hash(string: &str) -> Result<(u32), Box<Error>> {
[INFO] [stderr]    |             ^^^^^^ help: consider using `_string` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `stdin`
[INFO] [stderr]   --> src/lib.rs:48:9
[INFO] [stderr]    |
[INFO] [stderr] 48 |     let stdin = io::stdin();
[INFO] [stderr]    |         ^^^^^ help: consider using `_stdin` instead
[INFO] [stderr] 
[INFO] [stderr] warning: variable `pwd` is assigned to, but never used
[INFO] [stderr]   --> src/lib.rs:51:13
[INFO] [stderr]    |
[INFO] [stderr] 51 |     let mut pwd: PathBuf;
[INFO] [stderr]    |             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_pwd` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `pwd` is never read
[INFO] [stderr]   --> src/lib.rs:63:9
[INFO] [stderr]    |
[INFO] [stderr] 63 |         pwd = builtin::pwd()?;
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/lib.rs:107:25
[INFO] [stderr]     |
[INFO] [stderr] 107 |                     Err(e) => {
[INFO] [stderr]     |                         ^ help: consider using `_e` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `config`
[INFO] [stderr]   --> src/lib.rs:47:12
[INFO] [stderr]    |
[INFO] [stderr] 47 | pub fn run(config: Config) -> Result<(), Box<Error>> {
[INFO] [stderr]    |            ^^^^^^ help: consider using `_config` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/lib.rs:171:10
[INFO] [stderr]     |
[INFO] [stderr] 171 |     for (i, token) in tokens.iter().enumerate() {
[INFO] [stderr]     |          ^ help: consider using `_i` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `filetype`
[INFO] [stderr]    --> src/lib.rs:207:13
[INFO] [stderr]     |
[INFO] [stderr] 207 |         let filetype = "startup";
[INFO] [stderr]     |             ^^^^^^^^ help: consider using `_filetype` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `filename`
[INFO] [stderr]    --> src/lib.rs:208:13
[INFO] [stderr]     |
[INFO] [stderr] 208 |         let filename = "./rshrc";
[INFO] [stderr]     |             ^^^^^^^^ help: consider using `_filename` instead
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:52:9
[INFO] [stderr]    |
[INFO] [stderr] 52 |     let mut running: bool = true;
[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: static item is never used: `HELP`
[INFO] [stderr]   --> src/builtin.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | / static HELP: &'static str = "
[INFO] [stderr] 11 | |     exit - exits the shell.     
[INFO] [stderr] 12 | | ";
[INFO] [stderr]    | |__^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `help`
[INFO] [stderr]   --> src/builtin.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub fn help() {
[INFO] [stderr]    | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `cd`
[INFO] [stderr]   --> src/builtin.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | pub fn cd(path: PathBuf) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `export`
[INFO] [stderr]   --> src/builtin.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | pub fn export(env: &[String]) -> Result<(), Box<Error>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `unset`
[INFO] [stderr]   --> src/builtin.rs:45:1
[INFO] [stderr]    |
[INFO] [stderr] 45 | pub fn unset() -> Result<(), Box<Error>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hash`
[INFO] [stderr]   --> src/builtin.rs:52:1
[INFO] [stderr]    |
[INFO] [stderr] 52 | pub fn hash(string: &str) -> Result<(u32), Box<Error>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `stdin_fd`
[INFO] [stderr]    --> src/lib.rs:121:5
[INFO] [stderr]     |
[INFO] [stderr] 121 |     stdin_fd: c_int,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `stdout_fd`
[INFO] [stderr]    --> src/lib.rs:122:5
[INFO] [stderr]     |
[INFO] [stderr] 122 |     stdout_fd: c_int,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `stderr_fd`
[INFO] [stderr]    --> src/lib.rs:123:5
[INFO] [stderr]     |
[INFO] [stderr] 123 |     stderr_fd: c_int,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_err()`
[INFO] [stderr]   --> src/lib.rs:55:12
[INFO] [stderr]    |
[INFO] [stderr] 55 |       if let Err(_) = r1.load_history(".rsh_history") {
[INFO] [stderr]    |  _____-      ^^^^^^
[INFO] [stderr] 56 | |         println!("No previous history!"); 
[INFO] [stderr] 57 | |     }
[INFO] [stderr]    | |_____- help: try this: `if r1.load_history(".rsh_history").is_err()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_pattern_matching)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] error: Variable in the condition are not mutated in the loop body. This either leads to an infinite or to a never running loop.
[INFO] [stderr]   --> src/lib.rs:62:11
[INFO] [stderr]    |
[INFO] [stderr] 62 |     while running {
[INFO] [stderr]    |           ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::while_immutable_condition)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#while_immutable_condition
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/lib.rs:74:20
[INFO] [stderr]    |
[INFO] [stderr] 74 |                 if line.len() != 0 {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!line.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `rsh`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "b5a0649e30240325bc7caa1d527e2c7a480630ac8f16384de9deab2ee40499dd"`
[INFO] running `"docker" "rm" "-f" "b5a0649e30240325bc7caa1d527e2c7a480630ac8f16384de9deab2ee40499dd"`
[INFO] [stdout] b5a0649e30240325bc7caa1d527e2c7a480630ac8f16384de9deab2ee40499dd