[INFO] updating cached repository eiko/turtle_shell
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/eiko/turtle_shell
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/eiko/turtle_shell" "work/ex/clippy-test-run/sources/stable/gh/eiko/turtle_shell"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/eiko/turtle_shell'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/eiko/turtle_shell" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/eiko/turtle_shell"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/eiko/turtle_shell'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d69436563f9828dbb5d95779c799a91894bfb0f3
[INFO] sha for GitHub repo eiko/turtle_shell: d69436563f9828dbb5d95779c799a91894bfb0f3
[INFO] validating manifest of eiko/turtle_shell 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 eiko/turtle_shell 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 eiko/turtle_shell
[INFO] finished frobbing eiko/turtle_shell
[INFO] frobbed toml for eiko/turtle_shell written to work/ex/clippy-test-run/sources/stable/gh/eiko/turtle_shell/Cargo.toml
[INFO] started frobbing eiko/turtle_shell
[INFO] finished frobbing eiko/turtle_shell
[INFO] frobbed toml for eiko/turtle_shell written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/eiko/turtle_shell/Cargo.toml
[INFO] crate eiko/turtle_shell 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 eiko/turtle_shell against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-7/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/eiko/turtle_shell:/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] 3485906a4849af9c3b7ef3d4d05635bd5db9f1bf1ebb80f55b913b6b56b85578
[INFO] running `"docker" "start" "-a" "3485906a4849af9c3b7ef3d4d05635bd5db9f1bf1ebb80f55b913b6b56b85578"`
[INFO] [stderr]     Checking glib-sys v0.3.3
[INFO] [stderr]     Checking cairo-sys-rs v0.3.3
[INFO] [stderr]     Checking gobject-sys v0.3.3
[INFO] [stderr]     Checking gio-sys v0.3.3
[INFO] [stderr]     Checking glib v0.1.2
[INFO] [stderr]     Checking pango-sys v0.3.3
[INFO] [stderr]     Checking atk-sys v0.3.3
[INFO] [stderr]     Checking pango v0.1.2
[INFO] [stderr]     Checking cairo-rs v0.1.2
[INFO] [stderr]     Checking gdk-pixbuf-sys v0.3.3
[INFO] [stderr]     Checking gio v0.1.2
[INFO] [stderr]     Checking gdk-sys v0.3.3
[INFO] [stderr]     Checking gdk-pixbuf v0.1.2
[INFO] [stderr]     Checking gtk-sys v0.3.3
[INFO] [stderr]     Checking gdk v0.5.2
[INFO] [stderr]     Checking gtk v0.1.2
[INFO] [stderr]     Checking turtle_shell v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: using `print!()` with a format string that ends in a single newline, consider using `println!()` instead
[INFO] [stderr]    --> src/core.rs:199:9
[INFO] [stderr]     |
[INFO] [stderr] 199 |         print!("\n");
[INFO] [stderr]     |         ^^^^^^^^^^^^
[INFO] [stderr] warning: using `print!()` with a format string that ends in a single newline, consider using `println!()` instead
[INFO] [stderr]    --> src/core.rs:199:9
[INFO] [stderr]     |
[INFO] [stderr] 199 |         print!("\n");
[INFO] [stderr]     |         ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::print_with_newline)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#print_with_newline
[INFO] [stderr] 
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::print_with_newline)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#print_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::path::Path`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::path::Path;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/turbin.rs:54:9
[INFO] [stderr]    |
[INFO] [stderr] 54 |         return String::new();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `String::new()`
[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] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/core.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/core.rs:126:9
[INFO] [stderr]     |
[INFO] [stderr] 126 | /         return Err(format!("the value \"{}\" is invalid and cannot be subtracted",
[INFO] [stderr] 127 | |                            params[0]));
[INFO] [stderr]     | |_______________________________________^
[INFO] [stderr]     |
[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] 126 |         Err(format!("the value \"{}\" is invalid and cannot be subtracted",
[INFO] [stderr] 127 |                            params[0]))
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/core.rs:155:9
[INFO] [stderr]     |
[INFO] [stderr] 155 | /         return Err(format!("the value \"{}\" is invalid and cannot be divided",
[INFO] [stderr] 156 | |                            params[0]));
[INFO] [stderr]     | |_______________________________________^
[INFO] [stderr]     |
[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] 155 |         Err(format!("the value \"{}\" is invalid and cannot be divided",
[INFO] [stderr] 156 |                            params[0]))
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/core.rs:166:9
[INFO] [stderr]     |
[INFO] [stderr] 166 |         return Err(format!("the value \"{}\" is an invalid number", params[0]));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err(format!("the value \"{}\" is an invalid number", params[0]))`
[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: unneeded return statement
[INFO] [stderr]    --> src/core.rs:192:9
[INFO] [stderr]     |
[INFO] [stderr] 192 |         return Ok(String::new());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(String::new())`
[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: unneeded return statement
[INFO] [stderr]    --> src/core.rs:201:9
[INFO] [stderr]     |
[INFO] [stderr] 201 |         return Ok(String::new());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(String::new())`
[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: unneeded return statement
[INFO] [stderr]    --> src/main.rs:117:9
[INFO] [stderr]     |
[INFO] [stderr] 117 |         return "message not found D:".to_string();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `"message not found D:".to_string()`
[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: `std::path::Path`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::path::Path;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/turbin.rs:54:9
[INFO] [stderr]    |
[INFO] [stderr] 54 |         return String::new();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `String::new()`
[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] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/core.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/core.rs:126:9
[INFO] [stderr]     |
[INFO] [stderr] 126 | /         return Err(format!("the value \"{}\" is invalid and cannot be subtracted",
[INFO] [stderr] 127 | |                            params[0]));
[INFO] [stderr]     | |_______________________________________^
[INFO] [stderr]     |
[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] 126 |         Err(format!("the value \"{}\" is invalid and cannot be subtracted",
[INFO] [stderr] 127 |                            params[0]))
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/core.rs:155:9
[INFO] [stderr]     |
[INFO] [stderr] 155 | /         return Err(format!("the value \"{}\" is invalid and cannot be divided",
[INFO] [stderr] 156 | |                            params[0]));
[INFO] [stderr]     | |_______________________________________^
[INFO] [stderr]     |
[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] 155 |         Err(format!("the value \"{}\" is invalid and cannot be divided",
[INFO] [stderr] 156 |                            params[0]))
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/core.rs:166:9
[INFO] [stderr]     |
[INFO] [stderr] 166 |         return Err(format!("the value \"{}\" is an invalid number", params[0]));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err(format!("the value \"{}\" is an invalid number", params[0]))`
[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: unneeded return statement
[INFO] [stderr]    --> src/core.rs:192:9
[INFO] [stderr]     |
[INFO] [stderr] 192 |         return Ok(String::new());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(String::new())`
[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: unneeded return statement
[INFO] [stderr]    --> src/core.rs:201:9
[INFO] [stderr]     |
[INFO] [stderr] 201 |         return Ok(String::new());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(String::new())`
[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: unneeded return statement
[INFO] [stderr]    --> src/main.rs:117:9
[INFO] [stderr]     |
[INFO] [stderr] 117 |         return "message not found D:".to_string();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `"message not found D:".to_string()`
[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: `params`
[INFO] [stderr]    --> src/core.rs:173:19
[INFO] [stderr]     |
[INFO] [stderr] 173 |     fn ask(&self, params: Vec<String>) -> Result<String, String> {
[INFO] [stderr]     |                   ^^^^^^ help: consider using `_params` instead
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/turbin.rs:26:38
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn receive(&self, message: &str, mut params: Vec<String>) -> String {
[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: method is never used: `name`
[INFO] [stderr]  --> src/core.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pub fn name(&self) -> String {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `load`
[INFO] [stderr]   --> src/core.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub fn load(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `load_plugin`
[INFO] [stderr]   --> src/main.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     fn load_plugin(&mut self, plugin: &'a Plugin) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/turbin.rs:21:20
[INFO] [stderr]    |
[INFO] [stderr] 21 |             .split(" ")
[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: use of `expect` followed by a function call
[INFO] [stderr]   --> src/turbin.rs:43:35
[INFO] [stderr]    |
[INFO] [stderr] 43 |         let output = com.output().expect(&format!("failed to execute turbin: {}", self.0));
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| panic!("failed to execute turbin: {}", self.0))`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::expect_fun_call)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#expect_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/core.rs:175:9
[INFO] [stderr]     |
[INFO] [stderr] 175 |         io::stdout().flush();
[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/core.rs:191:9
[INFO] [stderr]     |
[INFO] [stderr] 191 |         io::stdout().flush();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/core.rs:200:9
[INFO] [stderr]     |
[INFO] [stderr] 200 |         io::stdout().flush();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/main.rs:83:9
[INFO] [stderr]    |
[INFO] [stderr] 83 | /         match command {
[INFO] [stderr] 84 | |             &parser::Command::Literal(ref s) => s.to_string(),
[INFO] [stderr] 85 | |             &parser::Command::Expression { ref terms } => {
[INFO] [stderr] 86 | |                 let message = self.execute(&terms[0]);
[INFO] [stderr] ...  |
[INFO] [stderr] 92 | |             }
[INFO] [stderr] 93 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 83 |         match *command {
[INFO] [stderr] 84 |             parser::Command::Literal(ref s) => s.to_string(),
[INFO] [stderr] 85 |             parser::Command::Expression { ref terms } => {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `params`
[INFO] [stderr]    --> src/core.rs:173:19
[INFO] [stderr]     |
[INFO] [stderr] 173 |     fn ask(&self, params: Vec<String>) -> Result<String, String> {
[INFO] [stderr]     |                   ^^^^^^ help: consider using `_params` instead
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/turbin.rs:26:38
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn receive(&self, message: &str, mut params: Vec<String>) -> String {
[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: method is never used: `name`
[INFO] [stderr]  --> src/core.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pub fn name(&self) -> String {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `load`
[INFO] [stderr]   --> src/core.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub fn load(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `load_plugin`
[INFO] [stderr]   --> src/main.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     fn load_plugin(&mut self, plugin: &'a Plugin) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/turbin.rs:21:20
[INFO] [stderr]    |
[INFO] [stderr] 21 |             .split(" ")
[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: use of `expect` followed by a function call
[INFO] [stderr]   --> src/turbin.rs:43:35
[INFO] [stderr]    |
[INFO] [stderr] 43 |         let output = com.output().expect(&format!("failed to execute turbin: {}", self.0));
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| panic!("failed to execute turbin: {}", self.0))`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::expect_fun_call)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#expect_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/core.rs:175:9
[INFO] [stderr]     |
[INFO] [stderr] 175 |         io::stdout().flush();
[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/core.rs:191:9
[INFO] [stderr]     |
[INFO] [stderr] 191 |         io::stdout().flush();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/core.rs:200:9
[INFO] [stderr]     |
[INFO] [stderr] 200 |         io::stdout().flush();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/main.rs:83:9
[INFO] [stderr]    |
[INFO] [stderr] 83 | /         match command {
[INFO] [stderr] 84 | |             &parser::Command::Literal(ref s) => s.to_string(),
[INFO] [stderr] 85 | |             &parser::Command::Expression { ref terms } => {
[INFO] [stderr] 86 | |                 let message = self.execute(&terms[0]);
[INFO] [stderr] ...  |
[INFO] [stderr] 92 | |             }
[INFO] [stderr] 93 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 83 |         match *command {
[INFO] [stderr] 84 |             parser::Command::Literal(ref s) => s.to_string(),
[INFO] [stderr] 85 |             parser::Command::Expression { ref terms } => {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.12s
[INFO] running `"docker" "inspect" "3485906a4849af9c3b7ef3d4d05635bd5db9f1bf1ebb80f55b913b6b56b85578"`
[INFO] running `"docker" "rm" "-f" "3485906a4849af9c3b7ef3d4d05635bd5db9f1bf1ebb80f55b913b6b56b85578"`
[INFO] [stdout] 3485906a4849af9c3b7ef3d4d05635bd5db9f1bf1ebb80f55b913b6b56b85578