[INFO] updating cached repository cosmo0920/grnenv-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/cosmo0920/grnenv-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/cosmo0920/grnenv-rs" "work/ex/clippy-test-run/sources/stable/gh/cosmo0920/grnenv-rs"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/cosmo0920/grnenv-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cosmo0920/grnenv-rs" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/cosmo0920/grnenv-rs"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/cosmo0920/grnenv-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 138d53e5037cd17f9ce40ee9f06bd9bba9f5a528
[INFO] sha for GitHub repo cosmo0920/grnenv-rs: 138d53e5037cd17f9ce40ee9f06bd9bba9f5a528
[INFO] validating manifest of cosmo0920/grnenv-rs 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 cosmo0920/grnenv-rs 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 cosmo0920/grnenv-rs
[INFO] finished frobbing cosmo0920/grnenv-rs
[INFO] frobbed toml for cosmo0920/grnenv-rs written to work/ex/clippy-test-run/sources/stable/gh/cosmo0920/grnenv-rs/Cargo.toml
[INFO] started frobbing cosmo0920/grnenv-rs
[INFO] finished frobbing cosmo0920/grnenv-rs
[INFO] frobbed toml for cosmo0920/grnenv-rs written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/cosmo0920/grnenv-rs/Cargo.toml
[INFO] crate cosmo0920/grnenv-rs 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 cosmo0920/grnenv-rs against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-5/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/cosmo0920/grnenv-rs:/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] 43590ad3daee15a8054d95a08d4f47b8016bec1373a336d815487bf2d9d419e1
[INFO] running `"docker" "start" "-a" "43590ad3daee15a8054d95a08d4f47b8016bec1373a336d815487bf2d9d419e1"`
[INFO] [stderr]     Checking num_cpus v1.2.1
[INFO] [stderr]    Compiling miniz_oxide_c_api v0.1.3
[INFO] [stderr]     Checking miniz_oxide v0.1.3
[INFO] [stderr]     Checking crossbeam-epoch v0.4.3
[INFO] [stderr]     Checking msdos_time v0.1.6
[INFO] [stderr]    Compiling quote v0.6.3
[INFO] [stderr]    Compiling serde_json v1.0.24
[INFO] [stderr]     Checking env_proxy v0.1.1
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]    Compiling string_cache_codegen v0.4.1
[INFO] [stderr]    Compiling syn v0.14.4
[INFO] [stderr]    Compiling selectors v0.19.0
[INFO] [stderr]     Checking crossbeam-deque v0.3.1
[INFO] [stderr]     Checking flate2 v1.0.1
[INFO] [stderr]     Checking tokio-threadpool v0.1.5
[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]     Checking zip v0.4.2
[INFO] [stderr]     Checking tokio-fs v0.1.2
[INFO] [stderr]     Checking tokio v0.1.7
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]     Checking tokio-proto v0.1.1
[INFO] [stderr]     Checking tokio-tls v0.1.4
[INFO] [stderr]     Checking hyper v0.11.27
[INFO] [stderr]    Compiling serde_derive v1.0.70
[INFO] [stderr]    Compiling cssparser-macros v0.3.4
[INFO] [stderr]     Checking cssparser v0.23.10
[INFO] [stderr]     Checking hyper-tls v0.1.3
[INFO] [stderr]     Checking reqwest v0.8.6
[INFO] [stderr]    Compiling markup5ever v0.7.2
[INFO] [stderr]     Checking html5ever v0.22.3
[INFO] [stderr]     Checking kuchiki v0.7.0
[INFO] [stderr]     Checking grnenv-rs v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/config.rs:36:13
[INFO] [stderr]    |
[INFO] [stderr] 36 |             install_dir: install_dir,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `install_dir`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/config.rs:37:13
[INFO] [stderr]    |
[INFO] [stderr] 37 |             shim_dir: shim_dir,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^ help: replace it with: `shim_dir`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/config.rs:39:13
[INFO] [stderr]    |
[INFO] [stderr] 39 |             build_conf: build_conf,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `build_conf`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/config.rs:57:13
[INFO] [stderr]    |
[INFO] [stderr] 57 |             install_dir: install_dir,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `install_dir`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/config.rs:58:13
[INFO] [stderr]    |
[INFO] [stderr] 58 |             shim_dir: shim_dir,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^ help: replace it with: `shim_dir`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/config.rs:60:13
[INFO] [stderr]    |
[INFO] [stderr] 60 |             arch: arch,
[INFO] [stderr]    |             ^^^^^^^^^^ help: replace it with: `arch`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/config.rs:61:13
[INFO] [stderr]    |
[INFO] [stderr] 61 |             version: version,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^ help: replace it with: `version`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/config.rs:62:13
[INFO] [stderr]    |
[INFO] [stderr] 62 |             build_conf: build_conf,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `build_conf`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/config.rs:107:13
[INFO] [stderr]     |
[INFO] [stderr] 107 |             install_dir: install_dir,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `install_dir`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/config.rs:108:13
[INFO] [stderr]     |
[INFO] [stderr] 108 |             shim_dir: shim_dir,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^ help: replace it with: `shim_dir`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/config.rs:109:13
[INFO] [stderr]     |
[INFO] [stderr] 109 |             versions_dir: versions_dir,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `versions_dir`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/config.rs:112:13
[INFO] [stderr]     |
[INFO] [stderr] 112 |             build_conf: build_conf,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `build_conf`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/config.rs:36:13
[INFO] [stderr]    |
[INFO] [stderr] 36 |             install_dir: install_dir,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `install_dir`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/config.rs:37:13
[INFO] [stderr]    |
[INFO] [stderr] 37 |             shim_dir: shim_dir,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^ help: replace it with: `shim_dir`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/config.rs:39:13
[INFO] [stderr]    |
[INFO] [stderr] 39 |             build_conf: build_conf,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `build_conf`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/config.rs:57:13
[INFO] [stderr]    |
[INFO] [stderr] 57 |             install_dir: install_dir,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `install_dir`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/config.rs:58:13
[INFO] [stderr]    |
[INFO] [stderr] 58 |             shim_dir: shim_dir,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^ help: replace it with: `shim_dir`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/config.rs:60:13
[INFO] [stderr]    |
[INFO] [stderr] 60 |             arch: arch,
[INFO] [stderr]    |             ^^^^^^^^^^ help: replace it with: `arch`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/config.rs:61:13
[INFO] [stderr]    |
[INFO] [stderr] 61 |             version: version,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^ help: replace it with: `version`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/config.rs:62:13
[INFO] [stderr]    |
[INFO] [stderr] 62 |             build_conf: build_conf,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `build_conf`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/config.rs:107:13
[INFO] [stderr]     |
[INFO] [stderr] 107 |             install_dir: install_dir,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `install_dir`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/config.rs:108:13
[INFO] [stderr]     |
[INFO] [stderr] 108 |             shim_dir: shim_dir,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^ help: replace it with: `shim_dir`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/config.rs:109:13
[INFO] [stderr]     |
[INFO] [stderr] 109 |             versions_dir: versions_dir,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `versions_dir`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/config.rs:112:13
[INFO] [stderr]     |
[INFO] [stderr] 112 |             build_conf: build_conf,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `build_conf`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/build_conf.rs:10:22
[INFO] [stderr]    |
[INFO] [stderr] 10 | const DEFAULT_ARGS: &'static str = "\"--with-zlib --with-ssl --enable-mruby --without-libstemmer \
[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: unneeded `()`
[INFO] [stderr]   --> src/command/common.rs:59:25
[INFO] [stderr]    |
[INFO] [stderr] 59 |         Ok(_) => return (),
[INFO] [stderr]    |                         ^^ help: remove the `()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unused_unit)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/command/unix.rs:44:22
[INFO] [stderr]    |
[INFO] [stderr] 44 |     const BASE_URL: &'static str = "http://packages.groonga.org/source/groonga";
[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 `()`
[INFO] [stderr]   --> src/command/unix.rs:55:16
[INFO] [stderr]    |
[INFO] [stderr] 55 |         return ();
[INFO] [stderr]    |                ^^ help: remove the `()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]    --> src/command/unix.rs:140:9
[INFO] [stderr]     |
[INFO] [stderr] 140 |         status
[INFO] [stderr]     |         ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::let_and_return)] on by default
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]    --> src/command/unix.rs:139:22
[INFO] [stderr]     |
[INFO] [stderr] 139 |         let status = cmd.wait();
[INFO] [stderr]     |                      ^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]    --> src/command/unix.rs:155:9
[INFO] [stderr]     |
[INFO] [stderr] 155 |         status
[INFO] [stderr]     |         ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]    --> src/command/unix.rs:154:22
[INFO] [stderr]     |
[INFO] [stderr] 154 |         let status = cmd.wait();
[INFO] [stderr]     |                      ^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]    --> src/command/unix.rs:170:9
[INFO] [stderr]     |
[INFO] [stderr] 170 |         status
[INFO] [stderr]     |         ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]    --> src/command/unix.rs:169:22
[INFO] [stderr]     |
[INFO] [stderr] 169 |         let status = cmd.wait();
[INFO] [stderr]     |                      ^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/command/unix.rs:181:13
[INFO] [stderr]     |
[INFO] [stderr] 181 |             return ();
[INFO] [stderr]     |             ^^^^^^^^^^ help: remove `return` as shown: `()`
[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 `()`
[INFO] [stderr]    --> src/command/unix.rs:181:20
[INFO] [stderr]     |
[INFO] [stderr] 181 |             return ();
[INFO] [stderr]     |                    ^^ help: remove the `()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
[INFO] [stderr]   --> src/command/common.rs:68:16
[INFO] [stderr]    |
[INFO] [stderr] 68 |     let home = env::home_dir().unwrap();
[INFO] [stderr]    |                ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
[INFO] [stderr]   --> src/command/unix.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |     if !env::home_dir()
[INFO] [stderr]    |         ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
[INFO] [stderr]  --> src/util.rs:7:20
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let base_dir = env::home_dir().unwrap();
[INFO] [stderr]   |                    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
[INFO] [stderr]   --> src/util.rs:12:20
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let base_dir = env::home_dir().unwrap();
[INFO] [stderr]    |                    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/build_conf.rs:10:22
[INFO] [stderr]    |
[INFO] [stderr] 10 | const DEFAULT_ARGS: &'static str = "\"--with-zlib --with-ssl --enable-mruby --without-libstemmer \
[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: unneeded `()`
[INFO] [stderr]   --> src/command/common.rs:59:25
[INFO] [stderr]    |
[INFO] [stderr] 59 |         Ok(_) => return (),
[INFO] [stderr]    |                         ^^ help: remove the `()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unused_unit)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/command/unix.rs:44:22
[INFO] [stderr]    |
[INFO] [stderr] 44 |     const BASE_URL: &'static str = "http://packages.groonga.org/source/groonga";
[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 `()`
[INFO] [stderr]   --> src/command/unix.rs:55:16
[INFO] [stderr]    |
[INFO] [stderr] 55 |         return ();
[INFO] [stderr]    |                ^^ help: remove the `()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]    --> src/command/unix.rs:140:9
[INFO] [stderr]     |
[INFO] [stderr] 140 |         status
[INFO] [stderr]     |         ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::let_and_return)] on by default
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]    --> src/command/unix.rs:139:22
[INFO] [stderr]     |
[INFO] [stderr] 139 |         let status = cmd.wait();
[INFO] [stderr]     |                      ^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]    --> src/command/unix.rs:155:9
[INFO] [stderr]     |
[INFO] [stderr] 155 |         status
[INFO] [stderr]     |         ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]    --> src/command/unix.rs:154:22
[INFO] [stderr]     |
[INFO] [stderr] 154 |         let status = cmd.wait();
[INFO] [stderr]     |                      ^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]    --> src/command/unix.rs:170:9
[INFO] [stderr]     |
[INFO] [stderr] 170 |         status
[INFO] [stderr]     |         ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]    --> src/command/unix.rs:169:22
[INFO] [stderr]     |
[INFO] [stderr] 169 |         let status = cmd.wait();
[INFO] [stderr]     |                      ^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/command/unix.rs:181:13
[INFO] [stderr]     |
[INFO] [stderr] 181 |             return ();
[INFO] [stderr]     |             ^^^^^^^^^^ help: remove `return` as shown: `()`
[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 `()`
[INFO] [stderr]    --> src/command/unix.rs:181:20
[INFO] [stderr]     |
[INFO] [stderr] 181 |             return ();
[INFO] [stderr]     |                    ^^ help: remove the `()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
[INFO] [stderr]   --> src/command/common.rs:68:16
[INFO] [stderr]    |
[INFO] [stderr] 68 |     let home = env::home_dir().unwrap();
[INFO] [stderr]    |                ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
[INFO] [stderr]   --> src/command/unix.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |     if !env::home_dir()
[INFO] [stderr]    |         ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
[INFO] [stderr]  --> src/util.rs:7:20
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let base_dir = env::home_dir().unwrap();
[INFO] [stderr]   |                    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
[INFO] [stderr]   --> src/util.rs:12:20
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let base_dir = env::home_dir().unwrap();
[INFO] [stderr]    |                    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
[INFO] [stderr]   --> src/config.rs:92:20
[INFO] [stderr]    |
[INFO] [stderr] 92 |         let home = env::home_dir().unwrap();
[INFO] [stderr]    |                    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
[INFO] [stderr]   --> src/util.rs:86:20
[INFO] [stderr]    |
[INFO] [stderr] 86 |         let home = env::home_dir().unwrap();
[INFO] [stderr]    |                    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
[INFO] [stderr]   --> src/util.rs:99:20
[INFO] [stderr]    |
[INFO] [stderr] 99 |         let home = env::home_dir().unwrap();
[INFO] [stderr]    |                    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea
[INFO] [stderr]   --> src/build_conf.rs:43:9
[INFO] [stderr]    |
[INFO] [stderr] 43 |         Err(_) => panic!("Couldn't decode toml with Configuration struct"),
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_wild_err_arm)] on by default
[INFO] [stderr]    = note: to remove this warning, match each error separately or use unreachable macro
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm
[INFO] [stderr] 
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]   --> src/build_conf.rs:59:19
[INFO] [stderr]    |
[INFO] [stderr] 59 |     env::var(key).unwrap_or("/usr/local/opt/openssl/lib/pkgconfig".to_string())
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| "/usr/local/opt/openssl/lib/pkgconfig".to_string())`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]   --> src/build_conf.rs:64:35
[INFO] [stderr]    |
[INFO] [stderr] 64 |       let build_args: Vec<String> = conf_args
[INFO] [stderr]    |  ___________________________________^
[INFO] [stderr] 65 | |         .split_whitespace()
[INFO] [stderr] 66 | |         .into_iter()
[INFO] [stderr]    | |____________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::identity_conversion)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] help: consider removing `.into_iter()`
[INFO] [stderr]    |
[INFO] [stderr] 64 |     let build_args: Vec<String> = conf_args
[INFO] [stderr] 65 |         .split_whitespace()
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/build_conf.rs:88:29
[INFO] [stderr]    |
[INFO] [stderr] 88 |         for p in path.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: redundant closure found
[INFO] [stderr]   --> src/command/common.rs:19:50
[INFO] [stderr]    |
[INFO] [stderr] 19 |                     .and_then(|n| n.to_str().map(|s| String::from(s)))
[INFO] [stderr]    |                                                  ^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `String::from`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_closure)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/command/common.rs:27:29
[INFO] [stderr]    |
[INFO] [stderr] 27 |         let e = entry.split("-").collect::<Vec<_>>();
[INFO] [stderr]    |                             ^^^ help: try using a char instead: `'-'`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]   --> src/command/common.rs:45:15
[INFO] [stderr]    |
[INFO] [stderr] 45 |         .find(|file| is_executable(file));
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `is_executable`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: in an 'if' condition, avoid complex blocks or closures with blocks; instead, move the block or closure higher and bind it with a 'let'
[INFO] [stderr]   --> src/command/unix.rs:28:28
[INFO] [stderr]    |
[INFO] [stderr] 28 |         .unwrap_or_else(|| panic!("Cound not found homedir."))
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea
[INFO] [stderr]   --> src/build_conf.rs:43:9
[INFO] [stderr]    |
[INFO] [stderr] 43 |         Err(_) => panic!("Couldn't decode toml with Configuration struct"),
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_wild_err_arm)] on by default
[INFO] [stderr]    = note: to remove this warning, match each error separately or use unreachable macro
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm
[INFO] [stderr] 
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::block_in_if_condition_stmt)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#block_in_if_condition_stmt
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]   --> src/build_conf.rs:59:19
[INFO] [stderr]    |
[INFO] [stderr] 59 |     env::var(key).unwrap_or("/usr/local/opt/openssl/lib/pkgconfig".to_string())
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| "/usr/local/opt/openssl/lib/pkgconfig".to_string())`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]   --> src/build_conf.rs:64:35
[INFO] [stderr]    |
[INFO] [stderr] 64 |       let build_args: Vec<String> = conf_args
[INFO] [stderr]    |  ___________________________________^
[INFO] [stderr] 65 | |         .split_whitespace()
[INFO] [stderr] 66 | |         .into_iter()
[INFO] [stderr]    | |____________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::identity_conversion)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] help: consider removing `.into_iter()`
[INFO] [stderr]    |
[INFO] [stderr] 64 |     let build_args: Vec<String> = conf_args
[INFO] [stderr] 65 |         .split_whitespace()
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/command/unix.rs:49:9
[INFO] [stderr]    |
[INFO] [stderr] 49 |         config.version.clone().unwrap()
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `config.version`
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/build_conf.rs:88:29
[INFO] [stderr]    |
[INFO] [stderr] 88 |         for p in path.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]    |
[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: use of `ok_or` followed by a function call
[INFO] [stderr]    --> src/command/unix.rs:144:39
[INFO] [stderr]     |
[INFO] [stderr] 144 |           let make = build_conf::make().ok_or(io::Error::new(
[INFO] [stderr]     |  _______________________________________^
[INFO] [stderr] 145 | |             io::ErrorKind::NotFound,
[INFO] [stderr] 146 | |             "make kind command is not found",
[INFO] [stderr] 147 | |         ))?;
[INFO] [stderr]     | |__________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 144 |         let make = build_conf::make().ok_or_else(|| io::Error::new(
[INFO] [stderr] 145 |             io::ErrorKind::NotFound,
[INFO] [stderr] 146 |             "make kind command is not found",
[INFO] [stderr] 147 |         ))?;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]    --> src/command/unix.rs:159:39
[INFO] [stderr]     |
[INFO] [stderr] 159 |           let make = build_conf::make().ok_or(io::Error::new(
[INFO] [stderr]     |  _______________________________________^
[INFO] [stderr] 160 | |             io::ErrorKind::NotFound,
[INFO] [stderr] 161 | |             "make kind command is not found",
[INFO] [stderr] 162 | |         ))?;
[INFO] [stderr]     | |__________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 159 |         let make = build_conf::make().ok_or_else(|| io::Error::new(
[INFO] [stderr] 160 |             io::ErrorKind::NotFound,
[INFO] [stderr] 161 |             "make kind command is not found",
[INFO] [stderr] 162 |         ))?;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]   --> src/command/common.rs:19:50
[INFO] [stderr]    |
[INFO] [stderr] 19 |                     .and_then(|n| n.to_str().map(|s| String::from(s)))
[INFO] [stderr]    |                                                  ^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `String::from`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_closure)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/command/common.rs:27:29
[INFO] [stderr]    |
[INFO] [stderr] 27 |         let e = entry.split("-").collect::<Vec<_>>();
[INFO] [stderr]    |                             ^^^ help: try using a char instead: `'-'`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/command/unix.rs:176:43
[INFO] [stderr]     |
[INFO] [stderr] 176 |     println!("Using Groonga version: {}", config.version.clone().unwrap());
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `config.version`
[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: redundant closure found
[INFO] [stderr]   --> src/command/common.rs:45:15
[INFO] [stderr]    |
[INFO] [stderr] 45 |         .find(|file| is_executable(file));
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `is_executable`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/command/unix.rs:204:22
[INFO] [stderr]     |
[INFO] [stderr] 204 |         if choice == "y".to_owned() || choice == "Y".to_owned() {
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^ help: try: `"y"`
[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/command/unix.rs:204:50
[INFO] [stderr]     |
[INFO] [stderr] 204 |         if choice == "y".to_owned() || choice == "Y".to_owned() {
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^ help: try: `"Y"`
[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: useless use of `format!`
[INFO] [stderr]    --> src/command/unix.rs:228:53
[INFO] [stderr]     |
[INFO] [stderr] 228 |     let page = downloader::page_download(&client, &*format!("{}", base_url))
[INFO] [stderr]     |                                                     ^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `base_url.to_string()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::useless_format)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]    --> src/command/unix.rs:250:28
[INFO] [stderr]     |
[INFO] [stderr] 250 |                     .split("-")
[INFO] [stderr]     |                            ^^^ help: try using a char instead: `'-'`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: in an 'if' condition, avoid complex blocks or closures with blocks; instead, move the block or closure higher and bind it with a 'let'
[INFO] [stderr]   --> src/command/unix.rs:28:28
[INFO] [stderr]    |
[INFO] [stderr] 28 |         .unwrap_or_else(|| panic!("Cound not found homedir."))
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::block_in_if_condition_stmt)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#block_in_if_condition_stmt
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/command/unix.rs:49:9
[INFO] [stderr]    |
[INFO] [stderr] 49 |         config.version.clone().unwrap()
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `config.version`
[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: use of `ok_or` followed by a function call
[INFO] [stderr]    --> src/command/unix.rs:144:39
[INFO] [stderr]     |
[INFO] [stderr] 144 |           let make = build_conf::make().ok_or(io::Error::new(
[INFO] [stderr]     |  _______________________________________^
[INFO] [stderr] 145 | |             io::ErrorKind::NotFound,
[INFO] [stderr] 146 | |             "make kind command is not found",
[INFO] [stderr] 147 | |         ))?;
[INFO] [stderr]     | |__________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 144 |         let make = build_conf::make().ok_or_else(|| io::Error::new(
[INFO] [stderr] 145 |             io::ErrorKind::NotFound,
[INFO] [stderr] 146 |             "make kind command is not found",
[INFO] [stderr] 147 |         ))?;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]    --> src/command/unix.rs:159:39
[INFO] [stderr]     |
[INFO] [stderr] 159 |           let make = build_conf::make().ok_or(io::Error::new(
[INFO] [stderr]     |  _______________________________________^
[INFO] [stderr] 160 | |             io::ErrorKind::NotFound,
[INFO] [stderr] 161 | |             "make kind command is not found",
[INFO] [stderr] 162 | |         ))?;
[INFO] [stderr]     | |__________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 159 |         let make = build_conf::make().ok_or_else(|| io::Error::new(
[INFO] [stderr] 160 |             io::ErrorKind::NotFound,
[INFO] [stderr] 161 |             "make kind command is not found",
[INFO] [stderr] 162 |         ))?;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/command/unix.rs:176:43
[INFO] [stderr]     |
[INFO] [stderr] 176 |     println!("Using Groonga version: {}", config.version.clone().unwrap());
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `config.version`
[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: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/command/unix.rs:204:22
[INFO] [stderr]     |
[INFO] [stderr] 204 |         if choice == "y".to_owned() || choice == "Y".to_owned() {
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^ help: try: `"y"`
[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/command/unix.rs:204:50
[INFO] [stderr]     |
[INFO] [stderr] 204 |         if choice == "y".to_owned() || choice == "Y".to_owned() {
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^ help: try: `"Y"`
[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 `unwrap_or` followed by a function call
[INFO] [stderr]   --> src/extractor.rs:20:48
[INFO] [stderr]    |
[INFO] [stderr] 20 |         create_directory(install_path.parent().unwrap_or(Path::new("")), None)?;
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| Path::new(""))`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/extractor.rs:23:38
[INFO] [stderr]    |
[INFO] [stderr] 23 |         if (&*file.name()).ends_with("/") {
[INFO] [stderr]    |                                      ^^^ help: try using a char instead: `'/'`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]  --> src/profile/unix.rs:9:18
[INFO] [stderr]   |
[INFO] [stderr] 9 |     groonga_dir: &String,
[INFO] [stderr]   |                  ^^^^^^^ help: change this to: `&str`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> src/command/unix.rs:228:53
[INFO] [stderr]     |
[INFO] [stderr] 228 |     let page = downloader::page_download(&client, &*format!("{}", base_url))
[INFO] [stderr]     |                                                     ^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `base_url.to_string()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::useless_format)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]    --> src/command/unix.rs:250:28
[INFO] [stderr]     |
[INFO] [stderr] 250 |                     .split("-")
[INFO] [stderr]     |                            ^^^ help: try using a char instead: `'-'`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]   --> src/profile/unix.rs:21:9
[INFO] [stderr]    |
[INFO] [stderr] 21 |         let _ = fs::remove_file(shim_dir.join("source-groonga.sh"))?;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::let_unit_value)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]   --> src/profile/unix.rs:56:9
[INFO] [stderr]    |
[INFO] [stderr] 56 |         let _ = fs::remove_file(shim_dir.join("source-groonga.sh"))?;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]   --> src/config.rs:94:9
[INFO] [stderr]    |
[INFO] [stderr] 94 |         let _ = env::set_var("HOME", stub_home.clone());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::let_unit_value)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[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/config.rs:94:38
[INFO] [stderr]    |
[INFO] [stderr] 94 |         let _ = env::set_var("HOME", stub_home.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] 94 |         let _ = env::set_var("HOME", &(*stub_home).clone());
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]    |
[INFO] [stderr] 94 |         let _ = env::set_var("HOME", &str::clone(stub_home));
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^^^^^
[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/config.rs:95:41
[INFO] [stderr]    |
[INFO] [stderr] 95 |         let install_dir = PathBuf::from(stub_home.clone()).join(".groonga");
[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] 95 |         let install_dir = PathBuf::from(&(*stub_home).clone()).join(".groonga");
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]    |
[INFO] [stderr] 95 |         let install_dir = PathBuf::from(&str::clone(stub_home)).join(".groonga");
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^^^^
[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/config.rs:96:42
[INFO] [stderr]    |
[INFO] [stderr] 96 |         let versions_dir = PathBuf::from(stub_home.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] 96 |         let versions_dir = PathBuf::from(&(*stub_home).clone())
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]    |
[INFO] [stderr] 96 |         let versions_dir = PathBuf::from(&str::clone(stub_home))
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^^^^^^^^
[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/config.rs:99:38
[INFO] [stderr]    |
[INFO] [stderr] 99 |         let shim_dir = PathBuf::from(stub_home.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] 99 |         let shim_dir = PathBuf::from(&(*stub_home).clone())
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]    |
[INFO] [stderr] 99 |         let shim_dir = PathBuf::from(&str::clone(stub_home))
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^^^^^
[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/config.rs:103:40
[INFO] [stderr]     |
[INFO] [stderr] 103 |         let build_conf = PathBuf::from(stub_home.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] 103 |         let build_conf = PathBuf::from(&(*stub_home).clone())
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 103 |         let build_conf = PathBuf::from(&str::clone(stub_home))
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]    --> src/config.rs:116:9
[INFO] [stderr]     |
[INFO] [stderr] 116 |         let _ = env::set_var("HOME", home);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]   --> src/extractor.rs:20:48
[INFO] [stderr]    |
[INFO] [stderr] 20 |         create_directory(install_path.parent().unwrap_or(Path::new("")), None)?;
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| Path::new(""))`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/extractor.rs:23:38
[INFO] [stderr]    |
[INFO] [stderr] 23 |         if (&*file.name()).ends_with("/") {
[INFO] [stderr]    |                                      ^^^ help: try using a char instead: `'/'`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]  --> src/profile/unix.rs:9:18
[INFO] [stderr]   |
[INFO] [stderr] 9 |     groonga_dir: &String,
[INFO] [stderr]   |                  ^^^^^^^ help: change this to: `&str`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]   --> src/profile/unix.rs:21:9
[INFO] [stderr]    |
[INFO] [stderr] 21 |         let _ = fs::remove_file(shim_dir.join("source-groonga.sh"))?;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]   --> src/profile/unix.rs:56:9
[INFO] [stderr]    |
[INFO] [stderr] 56 |         let _ = fs::remove_file(shim_dir.join("source-groonga.sh"))?;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]   --> src/util.rs:88:9
[INFO] [stderr]    |
[INFO] [stderr] 88 |         let _ = env::set_var("HOME", stub_home.clone());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[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/util.rs:88:38
[INFO] [stderr]    |
[INFO] [stderr] 88 |         let _ = env::set_var("HOME", stub_home.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] 88 |         let _ = env::set_var("HOME", &(*stub_home).clone());
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]    |
[INFO] [stderr] 88 |         let _ = env::set_var("HOME", &str::clone(stub_home));
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^^^^^
[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/util.rs:90:39
[INFO] [stderr]    |
[INFO] [stderr] 90 |         let versioned = PathBuf::from(stub_home.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] 90 |         let versioned = PathBuf::from(&(*stub_home).clone())
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]    |
[INFO] [stderr] 90 |         let versioned = PathBuf::from(&str::clone(stub_home))
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]   --> src/util.rs:94:9
[INFO] [stderr]    |
[INFO] [stderr] 94 |         let _ = env::set_var("HOME", home);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]    --> src/util.rs:101:9
[INFO] [stderr]     |
[INFO] [stderr] 101 |         let _ = env::set_var("HOME", stub_home.clone());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[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/util.rs:101:38
[INFO] [stderr]     |
[INFO] [stderr] 101 |         let _ = env::set_var("HOME", stub_home.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] 101 |         let _ = env::set_var("HOME", &(*stub_home).clone());
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 101 |         let _ = env::set_var("HOME", &str::clone(stub_home));
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^^^^
[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/util.rs:103:39
[INFO] [stderr]     |
[INFO] [stderr] 103 |         let versioned = PathBuf::from(stub_home.clone()).join(".groonga");
[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] 103 |         let versioned = PathBuf::from(&(*stub_home).clone()).join(".groonga");
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 103 |         let versioned = PathBuf::from(&str::clone(stub_home)).join(".groonga");
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]    --> src/util.rs:105:9
[INFO] [stderr]     |
[INFO] [stderr] 105 |         let _ = env::set_var("HOME", home);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 9 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `grnenv-rs`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/bin/grnenv-docopen.rs:39:18
[INFO] [stderr]    |
[INFO] [stderr] 39 |         Ok(_) => return (),
[INFO] [stderr]    |                  ^^^^^^^^^ help: remove `return` as shown: `()`
[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 `()`
[INFO] [stderr]   --> src/bin/grnenv-docopen.rs:39:25
[INFO] [stderr]    |
[INFO] [stderr] 39 |         Ok(_) => return (),
[INFO] [stderr]    |                         ^^ help: remove the `()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unused_unit)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/bin/grnenv-docopen.rs:39:18
[INFO] [stderr]    |
[INFO] [stderr] 39 |         Ok(_) => return (),
[INFO] [stderr]    |                  ^^^^^^^^^ help: remove `return` as shown: `()`
[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 `()`
[INFO] [stderr]   --> src/bin/grnenv-docopen.rs:39:25
[INFO] [stderr]    |
[INFO] [stderr] 39 |         Ok(_) => return (),
[INFO] [stderr]    |                         ^^ help: remove the `()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unused_unit)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "43590ad3daee15a8054d95a08d4f47b8016bec1373a336d815487bf2d9d419e1"`
[INFO] running `"docker" "rm" "-f" "43590ad3daee15a8054d95a08d4f47b8016bec1373a336d815487bf2d9d419e1"`
[INFO] [stdout] 43590ad3daee15a8054d95a08d4f47b8016bec1373a336d815487bf2d9d419e1