[INFO] updating cached repository ethowitz/rush
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ethowitz/rush
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ethowitz/rush" "work/ex/clippy-test-run/sources/stable/gh/ethowitz/rush"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/ethowitz/rush'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ethowitz/rush" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ethowitz/rush"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ethowitz/rush'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b036ace00a6472231b4653767c569fbc9e7fdcc7
[INFO] sha for GitHub repo ethowitz/rush: b036ace00a6472231b4653767c569fbc9e7fdcc7
[INFO] validating manifest of ethowitz/rush 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 ethowitz/rush 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 ethowitz/rush
[INFO] finished frobbing ethowitz/rush
[INFO] frobbed toml for ethowitz/rush written to work/ex/clippy-test-run/sources/stable/gh/ethowitz/rush/Cargo.toml
[INFO] started frobbing ethowitz/rush
[INFO] finished frobbing ethowitz/rush
[INFO] frobbed toml for ethowitz/rush written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ethowitz/rush/Cargo.toml
[INFO] crate ethowitz/rush 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 ethowitz/rush against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-3/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/ethowitz/rush:/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] 7be82dcac45b8e71915b54da2b78057ccd480d697308a8d24773853634bbe9d5
[INFO] running `"docker" "start" "-a" "7be82dcac45b8e71915b54da2b78057ccd480d697308a8d24773853634bbe9d5"`
[INFO] [stderr]     Checking rush v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `env`, `process`
[INFO] [stderr]  --> src/main.rs:7:11
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::{env, io, process};
[INFO] [stderr]   |           ^^^      ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/main.rs:18:24
[INFO] [stderr]    |
[INFO] [stderr] 18 | const VALID_TOKEN_RE: &'static str =
[INFO] [stderr]    |                       -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::const_static_lifetime)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/main.rs:20:26
[INFO] [stderr]    |
[INFO] [stderr] 20 | const WHITESPACE_NL_RE: &'static str = " +|\\n+";
[INFO] [stderr]    |                         -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/main.rs:21:16
[INFO] [stderr]    |
[INFO] [stderr] 21 | const NUM_RE: &'static str = r"-?[0-9]+";
[INFO] [stderr]    |               -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/main.rs:22:16
[INFO] [stderr]    |
[INFO] [stderr] 22 | const SYM_RE: &'static str = "\"[.]\"";
[INFO] [stderr]    |               -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/main.rs:57:16
[INFO] [stderr]    |
[INFO] [stderr] 57 | const PROMPT: &'static str = "->";
[INFO] [stderr]    |               -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:113:24
[INFO] [stderr]     |
[INFO] [stderr] 113 |             Some(_) => return Err("expected closing bracket".to_string()),
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err("expected closing bracket".to_string())`
[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: unneeded return statement
[INFO] [stderr]    --> src/main.rs:114:18
[INFO] [stderr]     |
[INFO] [stderr] 114 |             _ => return Err("missing closing bracket".to_string()),
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err("missing closing bracket".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 imports: `env`, `process`
[INFO] [stderr]  --> src/main.rs:7:11
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::{env, io, process};
[INFO] [stderr]   |           ^^^      ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/main.rs:18:24
[INFO] [stderr]    |
[INFO] [stderr] 18 | const VALID_TOKEN_RE: &'static str =
[INFO] [stderr]    |                       -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::const_static_lifetime)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/main.rs:20:26
[INFO] [stderr]    |
[INFO] [stderr] 20 | const WHITESPACE_NL_RE: &'static str = " +|\\n+";
[INFO] [stderr]    |                         -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/main.rs:21:16
[INFO] [stderr]    |
[INFO] [stderr] 21 | const NUM_RE: &'static str = r"-?[0-9]+";
[INFO] [stderr]    |               -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/main.rs:22:16
[INFO] [stderr]    |
[INFO] [stderr] 22 | const SYM_RE: &'static str = "\"[.]\"";
[INFO] [stderr]    |               -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/main.rs:57:16
[INFO] [stderr]    |
[INFO] [stderr] 57 | const PROMPT: &'static str = "->";
[INFO] [stderr]    |               -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:113:24
[INFO] [stderr]     |
[INFO] [stderr] 113 |             Some(_) => return Err("expected closing bracket".to_string()),
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err("expected closing bracket".to_string())`
[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: unneeded return statement
[INFO] [stderr]    --> src/main.rs:114:18
[INFO] [stderr]     |
[INFO] [stderr] 114 |             _ => return Err("missing closing bracket".to_string()),
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err("missing closing bracket".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: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/main.rs:36:45
[INFO] [stderr]    |
[INFO] [stderr] 36 |             Val::Num(ref value) => Val::Num(value.clone()),
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^ help: try dereferencing it: `*value`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::clone_on_copy)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/main.rs:38:47
[INFO] [stderr]    |
[INFO] [stderr] 38 |             Val::Bool(ref value) => Val::Bool(value.clone()),
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^ help: try dereferencing it: `*value`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/main.rs:36:45
[INFO] [stderr]    |
[INFO] [stderr] 36 |             Val::Num(ref value) => Val::Num(value.clone()),
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^ help: try dereferencing it: `*value`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::clone_on_copy)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/main.rs:38:47
[INFO] [stderr]    |
[INFO] [stderr] 38 |             Val::Bool(ref value) => Val::Bool(value.clone()),
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^ help: try dereferencing it: `*value`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[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:104:21
[INFO] [stderr]     |
[INFO] [stderr] 104 |         Some(op) => op.clone(),
[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] 104 |         Some(op) => &&(**op).clone(),
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 104 |         Some(op) => &&str::clone(op),
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/main.rs:108:8
[INFO] [stderr]     |
[INFO] [stderr] 108 |     if token.to_string() == "[".to_string() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^ help: try: `*token`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cmp_owned)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/main.rs:108:29
[INFO] [stderr]     |
[INFO] [stderr] 108 |     if token.to_string() == "[".to_string() {
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^ help: try: `"["`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/main.rs:112:25
[INFO] [stderr]     |
[INFO] [stderr] 112 |             Some(ch) if ch.to_string() == "]".to_string() => Ok(e),
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^ help: try: `*ch`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/main.rs:112:43
[INFO] [stderr]     |
[INFO] [stderr] 112 |             Some(ch) if ch.to_string() == "]".to_string() => Ok(e),
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^ help: try: `"]"`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[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:124:21
[INFO] [stderr]     |
[INFO] [stderr] 124 |         Some(op) => op.clone(),
[INFO] [stderr]     |                     ^^^^^^^^^^
[INFO] [stderr]     |
[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] 124 |         Some(op) => &(*op).clone(),
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 124 |         Some(op) => &str::clone(op),
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this call to `as_ref` does nothing
[INFO] [stderr]    --> src/main.rs:129:15
[INFO] [stderr]     |
[INFO] [stderr] 129 |         match token.as_ref() {
[INFO] [stderr]     |               ^^^^^^^^^^^^^^ help: try this: `token`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::useless_asref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_asref
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/main.rs:133:33
[INFO] [stderr]     |
[INFO] [stderr] 133 |                     Some(ch) if ch.to_string() != "]".to_string() => return Err("expected closing bracket".to_string()),
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^ help: try: `*ch`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/main.rs:133:51
[INFO] [stderr]     |
[INFO] [stderr] 133 |                     Some(ch) if ch.to_string() != "]".to_string() => return Err("expected closing bracket".to_string()),
[INFO] [stderr]     |                                                   ^^^^^^^^^^^^^^^ help: try: `"]"`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/main.rs:146:12
[INFO] [stderr]     |
[INFO] [stderr] 146 |         if token.to_string() == "if".to_string() {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^ help: try: `*token`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/main.rs:146:33
[INFO] [stderr]     |
[INFO] [stderr] 146 |         if token.to_string() == "if".to_string() {
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^ help: try: `"if"`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/main.rs:150:20
[INFO] [stderr]     |
[INFO] [stderr] 150 |                 if token.to_string() != "then".to_string() {
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^ help: try: `*token`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/main.rs:150:41
[INFO] [stderr]     |
[INFO] [stderr] 150 |                 if token.to_string() != "then".to_string() {
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^ help: try: `"then"`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/main.rs:158:20
[INFO] [stderr]     |
[INFO] [stderr] 158 |                 if token.to_string() != "else".to_string() {
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^ help: try: `*token`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/main.rs:158:41
[INFO] [stderr]     |
[INFO] [stderr] 158 |                 if token.to_string() != "else".to_string() {
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^ help: try: `"else"`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[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:104:21
[INFO] [stderr]     |
[INFO] [stderr] 104 |         Some(op) => op.clone(),
[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] 104 |         Some(op) => &&(**op).clone(),
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 104 |         Some(op) => &&str::clone(op),
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/main.rs:108:8
[INFO] [stderr]     |
[INFO] [stderr] 108 |     if token.to_string() == "[".to_string() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^ help: try: `*token`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cmp_owned)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/main.rs:108:29
[INFO] [stderr]     |
[INFO] [stderr] 108 |     if token.to_string() == "[".to_string() {
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^ help: try: `"["`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/main.rs:112:25
[INFO] [stderr]     |
[INFO] [stderr] 112 |             Some(ch) if ch.to_string() == "]".to_string() => Ok(e),
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^ help: try: `*ch`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/main.rs:112:43
[INFO] [stderr]     |
[INFO] [stderr] 112 |             Some(ch) if ch.to_string() == "]".to_string() => Ok(e),
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^ help: try: `"]"`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this call to `as_ref` does nothing
[INFO] [stderr]    --> src/main.rs:177:15
[INFO] [stderr]     |
[INFO] [stderr] 177 |         match op.as_ref() {
[INFO] [stderr]     |               ^^^^^^^^^^^ help: try this: `op`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_asref
[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:124:21
[INFO] [stderr]     |
[INFO] [stderr] 124 |         Some(op) => op.clone(),
[INFO] [stderr]     |                     ^^^^^^^^^^
[INFO] [stderr]     |
[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] 124 |         Some(op) => &(*op).clone(),
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 124 |         Some(op) => &str::clone(op),
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this call to `as_ref` does nothing
[INFO] [stderr]    --> src/main.rs:129:15
[INFO] [stderr]     |
[INFO] [stderr] 129 |         match token.as_ref() {
[INFO] [stderr]     |               ^^^^^^^^^^^^^^ help: try this: `token`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::useless_asref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_asref
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/main.rs:133:33
[INFO] [stderr]     |
[INFO] [stderr] 133 |                     Some(ch) if ch.to_string() != "]".to_string() => return Err("expected closing bracket".to_string()),
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^ help: try: `*ch`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/main.rs:133:51
[INFO] [stderr]     |
[INFO] [stderr] 133 |                     Some(ch) if ch.to_string() != "]".to_string() => return Err("expected closing bracket".to_string()),
[INFO] [stderr]     |                                                   ^^^^^^^^^^^^^^^ help: try: `"]"`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this call to `as_ref` does nothing
[INFO] [stderr]    --> src/main.rs:195:15
[INFO] [stderr]     |
[INFO] [stderr] 195 |         match op.as_ref() {
[INFO] [stderr]     |               ^^^^^^^^^^^ help: try this: `op`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_asref
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/main.rs:146:12
[INFO] [stderr]     |
[INFO] [stderr] 146 |         if token.to_string() == "if".to_string() {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^ help: try: `*token`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/main.rs:146:33
[INFO] [stderr]     |
[INFO] [stderr] 146 |         if token.to_string() == "if".to_string() {
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^ help: try: `"if"`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/main.rs:150:20
[INFO] [stderr]     |
[INFO] [stderr] 150 |                 if token.to_string() != "then".to_string() {
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^ help: try: `*token`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/main.rs:150:41
[INFO] [stderr]     |
[INFO] [stderr] 150 |                 if token.to_string() != "then".to_string() {
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^ help: try: `"then"`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this call to `as_ref` does nothing
[INFO] [stderr]    --> src/main.rs:221:15
[INFO] [stderr]     |
[INFO] [stderr] 221 |         match op.as_ref() {
[INFO] [stderr]     |               ^^^^^^^^^^^ help: try this: `op`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_asref
[INFO] [stderr] 
[INFO] [stderr] warning: this call to `as_ref` does nothing
[INFO] [stderr]    --> src/main.rs:242:15
[INFO] [stderr]     |
[INFO] [stderr] 242 |         match op.as_ref() {
[INFO] [stderr]     |               ^^^^^^^^^^^ help: try this: `op`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_asref
[INFO] [stderr] 
[INFO] [stderr] warning: this call to `as_ref` does nothing
[INFO] [stderr]    --> src/main.rs:261:15
[INFO] [stderr]     |
[INFO] [stderr] 261 |         match op.as_ref() {
[INFO] [stderr]     |               ^^^^^^^^^^^ help: try this: `op`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_asref
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/main.rs:158:20
[INFO] [stderr]     |
[INFO] [stderr] 158 |                 if token.to_string() != "else".to_string() {
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^ help: try: `*token`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/main.rs:158:41
[INFO] [stderr]     |
[INFO] [stderr] 158 |                 if token.to_string() != "else".to_string() {
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^ help: try: `"else"`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[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:282:21
[INFO] [stderr]     |
[INFO] [stderr] 282 |         Some(op) => op.clone(),
[INFO] [stderr]     |                     ^^^^^^^^^^
[INFO] [stderr]     |
[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] 282 |         Some(op) => &&(**op).clone(),
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 282 |         Some(op) => &&str::clone(op),
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this call to `as_ref` does nothing
[INFO] [stderr]    --> src/main.rs:286:11
[INFO] [stderr]     |
[INFO] [stderr] 286 |     match op.as_ref() as &str {
[INFO] [stderr]     |           ^^^^^^^^^^^ help: try this: `op`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_asref
[INFO] [stderr] 
[INFO] [stderr] warning: this call to `as_ref` does nothing
[INFO] [stderr]    --> src/main.rs:177:15
[INFO] [stderr]     |
[INFO] [stderr] 177 |         match op.as_ref() {
[INFO] [stderr]     |               ^^^^^^^^^^^ help: try this: `op`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_asref
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/main.rs:313:29
[INFO] [stderr]     |
[INFO] [stderr] 313 |                 Some(ch) if ch.to_string() == ")".to_string() => e,
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^ help: try: `*ch`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/main.rs:313:47
[INFO] [stderr]     |
[INFO] [stderr] 313 |                 Some(ch) if ch.to_string() == ")".to_string() => e,
[INFO] [stderr]     |                                               ^^^^^^^^^^^^^^^ help: try: `")"`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this call to `as_ref` does nothing
[INFO] [stderr]    --> src/main.rs:195:15
[INFO] [stderr]     |
[INFO] [stderr] 195 |         match op.as_ref() {
[INFO] [stderr]     |               ^^^^^^^^^^^ help: try this: `op`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_asref
[INFO] [stderr] 
[INFO] [stderr] warning: this call to `as_ref` does nothing
[INFO] [stderr]    --> src/main.rs:221:15
[INFO] [stderr]     |
[INFO] [stderr] 221 |         match op.as_ref() {
[INFO] [stderr]     |               ^^^^^^^^^^^ help: try this: `op`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_asref
[INFO] [stderr] 
[INFO] [stderr] warning: this call to `as_ref` does nothing
[INFO] [stderr]    --> src/main.rs:242:15
[INFO] [stderr]     |
[INFO] [stderr] 242 |         match op.as_ref() {
[INFO] [stderr]     |               ^^^^^^^^^^^ help: try this: `op`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_asref
[INFO] [stderr] 
[INFO] [stderr] warning: Negation by multiplying with -1
[INFO] [stderr]    --> src/main.rs:392:40
[INFO] [stderr]     |
[INFO] [stderr] 392 |         UnaryOp::Negate => Ok(Val::Num(try!(expect_num(val)) * -1 )),
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::neg_multiply)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#neg_multiply
[INFO] [stderr] 
[INFO] [stderr] warning: Negation by multiplying with -1
[INFO] [stderr]    --> src/main.rs:393:41
[INFO] [stderr]     |
[INFO] [stderr] 393 |         UnaryOp::Inverse => Ok(Val::Num(try!(expect_num(val)) * -1 )),
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#neg_multiply
[INFO] [stderr] 
[INFO] [stderr] warning: this call to `as_ref` does nothing
[INFO] [stderr]    --> src/main.rs:261:15
[INFO] [stderr]     |
[INFO] [stderr] 261 |         match op.as_ref() {
[INFO] [stderr]     |               ^^^^^^^^^^^ help: try this: `op`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_asref
[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:282:21
[INFO] [stderr]     |
[INFO] [stderr] 282 |         Some(op) => op.clone(),
[INFO] [stderr]     |                     ^^^^^^^^^^
[INFO] [stderr]     |
[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] 282 |         Some(op) => &&(**op).clone(),
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 282 |         Some(op) => &&str::clone(op),
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this call to `as_ref` does nothing
[INFO] [stderr]    --> src/main.rs:286:11
[INFO] [stderr]     |
[INFO] [stderr] 286 |     match op.as_ref() as &str {
[INFO] [stderr]     |           ^^^^^^^^^^^ help: try this: `op`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_asref
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/main.rs:313:29
[INFO] [stderr]     |
[INFO] [stderr] 313 |                 Some(ch) if ch.to_string() == ")".to_string() => e,
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^ help: try: `*ch`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/main.rs:313:47
[INFO] [stderr]     |
[INFO] [stderr] 313 |                 Some(ch) if ch.to_string() == ")".to_string() => e,
[INFO] [stderr]     |                                               ^^^^^^^^^^^^^^^ help: try: `")"`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: use of `expect` followed by a function call
[INFO] [stderr]    --> src/main.rs:411:38
[INFO] [stderr]     |
[INFO] [stderr] 411 |                                     .expect(&format!("command \'{}\' not found", cmd));
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| panic!("command \'{}\' not found", cmd))`
[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] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `rush`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: Negation by multiplying with -1
[INFO] [stderr]    --> src/main.rs:392:40
[INFO] [stderr]     |
[INFO] [stderr] 392 |         UnaryOp::Negate => Ok(Val::Num(try!(expect_num(val)) * -1 )),
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::neg_multiply)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#neg_multiply
[INFO] [stderr] 
[INFO] [stderr] warning: Negation by multiplying with -1
[INFO] [stderr]    --> src/main.rs:393:41
[INFO] [stderr]     |
[INFO] [stderr] 393 |         UnaryOp::Inverse => Ok(Val::Num(try!(expect_num(val)) * -1 )),
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#neg_multiply
[INFO] [stderr] 
[INFO] [stderr] warning: use of `expect` followed by a function call
[INFO] [stderr]    --> src/main.rs:411:38
[INFO] [stderr]     |
[INFO] [stderr] 411 |                                     .expect(&format!("command \'{}\' not found", cmd));
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| panic!("command \'{}\' not found", cmd))`
[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] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `rush`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "7be82dcac45b8e71915b54da2b78057ccd480d697308a8d24773853634bbe9d5"`
[INFO] running `"docker" "rm" "-f" "7be82dcac45b8e71915b54da2b78057ccd480d697308a8d24773853634bbe9d5"`
[INFO] [stdout] 7be82dcac45b8e71915b54da2b78057ccd480d697308a8d24773853634bbe9d5