[INFO] crate dfile 0.2.0 is already in cache
[INFO] extracting crate dfile 0.2.0 into work/ex/clippy-test-run/sources/stable/reg/dfile/0.2.0
[INFO] extracting crate dfile 0.2.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/dfile/0.2.0
[INFO] validating manifest of dfile-0.2.0 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 dfile-0.2.0 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 dfile-0.2.0
[INFO] finished frobbing dfile-0.2.0
[INFO] frobbed toml for dfile-0.2.0 written to work/ex/clippy-test-run/sources/stable/reg/dfile/0.2.0/Cargo.toml
[INFO] started frobbing dfile-0.2.0
[INFO] finished frobbing dfile-0.2.0
[INFO] frobbed toml for dfile-0.2.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/dfile/0.2.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 dfile-0.2.0 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/reg/dfile/0.2.0:/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] bf5e09a4af72f83e760cff83d3190c6caf2145dddf546a313af7b93e3ec68b64
[INFO] running `"docker" "start" "-a" "bf5e09a4af72f83e760cff83d3190c6caf2145dddf546a313af7b93e3ec68b64"`
[INFO] [stderr]     Checking dfile v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/commands.rs:170:5
[INFO] [stderr]     |
[INFO] [stderr] 170 |     return dotless_newpath;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `dotless_newpath`
[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/commands.rs:179:5
[INFO] [stderr]     |
[INFO] [stderr] 179 |     return repo.remotes().unwrap().len() > 0;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `repo.remotes().unwrap().len() > 0`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/setup.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     return input;
[INFO] [stderr]    |     ^^^^^^^^^^^^^ help: remove `return` as shown: `input`
[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 `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/commands.rs:170:5
[INFO] [stderr]     |
[INFO] [stderr] 170 |     return dotless_newpath;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `dotless_newpath`
[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/commands.rs:179:5
[INFO] [stderr]     |
[INFO] [stderr] 179 |     return repo.remotes().unwrap().len() > 0;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `repo.remotes().unwrap().len() > 0`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/setup.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     return input;
[INFO] [stderr]    |     ^^^^^^^^^^^^^ help: remove `return` as shown: `input`
[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: useless use of `format!`
[INFO] [stderr]   --> src/commands.rs:53:26
[INFO] [stderr]    |
[INFO] [stderr] 53 |                     .arg(format!("{}", dotfile_str))
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `dotfile_str.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: useless use of `format!`
[INFO] [stderr]   --> src/commands.rs:55:26
[INFO] [stderr]    |
[INFO] [stderr] 55 |                     .arg(format!("{}", newpath_str))
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `newpath_str.to_string()`
[INFO] [stderr]    |
[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: useless use of `format!`
[INFO] [stderr]   --> src/commands.rs:61:26
[INFO] [stderr]    |
[INFO] [stderr] 61 |                     .arg(format!("{}", dotfile_str))
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `dotfile_str.to_string()`
[INFO] [stderr]    |
[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: useless use of `format!`
[INFO] [stderr]   --> src/commands.rs:81:14
[INFO] [stderr]    |
[INFO] [stderr] 81 |         .arg(format!("{}", dotfile_path))
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `dotfile_path.to_string()`
[INFO] [stderr]    |
[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: useless use of `format!`
[INFO] [stderr]   --> src/commands.rs:91:14
[INFO] [stderr]    |
[INFO] [stderr] 91 |         .arg(format!("{}", dotfile_path))
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `dotfile_path.to_string()`
[INFO] [stderr]    |
[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: useless use of `format!`
[INFO] [stderr]    --> src/commands.rs:109:18
[INFO] [stderr]     |
[INFO] [stderr] 109 |             .arg(format!("{}", dotfile_path))
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `dotfile_path.to_string()`
[INFO] [stderr]     |
[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: useless use of `format!`
[INFO] [stderr]    --> src/commands.rs:119:18
[INFO] [stderr]     |
[INFO] [stderr] 119 |             .arg(format!("{}", dotfile_path))
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `dotfile_path.to_string()`
[INFO] [stderr]     |
[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: useless use of `format!`
[INFO] [stderr]    --> src/commands.rs:137:24
[INFO] [stderr]     |
[INFO] [stderr] 137 |     commands.insert(2, format!("{}", dotfile_path));
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `dotfile_path.to_string()`
[INFO] [stderr]     |
[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] error: this .into_iter() call is equivalent to .iter() and will not move the PathBuf
[INFO] [stderr]    --> src/commands.rs:154:51
[INFO] [stderr]     |
[INFO] [stderr] 154 |     let relative_path: PathBuf = fullpath.clone().into_iter().skip(home_path_size).collect();
[INFO] [stderr]     |                                                   ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::into_iter_on_array)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_array
[INFO] [stderr] 
[INFO] [stderr] warning: you should use the `starts_with` method
[INFO] [stderr]    --> src/commands.rs:164:12
[INFO] [stderr]     |
[INFO] [stderr] 164 |         if part_str.chars().next() == Some('.') {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: like this: `part_str.starts_with('.')`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::chars_next_cmp)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#chars_next_cmp
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/commands.rs:179:12
[INFO] [stderr]     |
[INFO] [stderr] 179 |     return repo.remotes().unwrap().len() > 0;
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!repo.remotes().unwrap().is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]   --> src/setup.rs:38:18
[INFO] [stderr]    |
[INFO] [stderr] 38 |             .arg(format!("{}", dotfile_path))
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `dotfile_path.to_string()`
[INFO] [stderr]    |
[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: length comparison to one
[INFO] [stderr]   --> src/main.rs:48:8
[INFO] [stderr]    |
[INFO] [stderr] 48 |     if files.len() < 1 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `files.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `dfile`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]   --> src/commands.rs:53:26
[INFO] [stderr]    |
[INFO] [stderr] 53 |                     .arg(format!("{}", dotfile_str))
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `dotfile_str.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: useless use of `format!`
[INFO] [stderr]   --> src/commands.rs:55:26
[INFO] [stderr]    |
[INFO] [stderr] 55 |                     .arg(format!("{}", newpath_str))
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `newpath_str.to_string()`
[INFO] [stderr]    |
[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: useless use of `format!`
[INFO] [stderr]   --> src/commands.rs:61:26
[INFO] [stderr]    |
[INFO] [stderr] 61 |                     .arg(format!("{}", dotfile_str))
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `dotfile_str.to_string()`
[INFO] [stderr]    |
[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: useless use of `format!`
[INFO] [stderr]   --> src/commands.rs:81:14
[INFO] [stderr]    |
[INFO] [stderr] 81 |         .arg(format!("{}", dotfile_path))
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `dotfile_path.to_string()`
[INFO] [stderr]    |
[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: useless use of `format!`
[INFO] [stderr]   --> src/commands.rs:91:14
[INFO] [stderr]    |
[INFO] [stderr] 91 |         .arg(format!("{}", dotfile_path))
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `dotfile_path.to_string()`
[INFO] [stderr]    |
[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: useless use of `format!`
[INFO] [stderr]    --> src/commands.rs:109:18
[INFO] [stderr]     |
[INFO] [stderr] 109 |             .arg(format!("{}", dotfile_path))
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `dotfile_path.to_string()`
[INFO] [stderr]     |
[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: useless use of `format!`
[INFO] [stderr]    --> src/commands.rs:119:18
[INFO] [stderr]     |
[INFO] [stderr] 119 |             .arg(format!("{}", dotfile_path))
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `dotfile_path.to_string()`
[INFO] [stderr]     |
[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: useless use of `format!`
[INFO] [stderr]    --> src/commands.rs:137:24
[INFO] [stderr]     |
[INFO] [stderr] 137 |     commands.insert(2, format!("{}", dotfile_path));
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `dotfile_path.to_string()`
[INFO] [stderr]     |
[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] error: this .into_iter() call is equivalent to .iter() and will not move the PathBuf
[INFO] [stderr]    --> src/commands.rs:154:51
[INFO] [stderr]     |
[INFO] [stderr] 154 |     let relative_path: PathBuf = fullpath.clone().into_iter().skip(home_path_size).collect();
[INFO] [stderr]     |                                                   ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::into_iter_on_array)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_array
[INFO] [stderr] 
[INFO] [stderr] warning: you should use the `starts_with` method
[INFO] [stderr]    --> src/commands.rs:164:12
[INFO] [stderr]     |
[INFO] [stderr] 164 |         if part_str.chars().next() == Some('.') {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: like this: `part_str.starts_with('.')`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::chars_next_cmp)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#chars_next_cmp
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/commands.rs:179:12
[INFO] [stderr]     |
[INFO] [stderr] 179 |     return repo.remotes().unwrap().len() > 0;
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!repo.remotes().unwrap().is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]   --> src/setup.rs:38:18
[INFO] [stderr]    |
[INFO] [stderr] 38 |             .arg(format!("{}", dotfile_path))
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `dotfile_path.to_string()`
[INFO] [stderr]    |
[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: length comparison to one
[INFO] [stderr]   --> src/main.rs:48:8
[INFO] [stderr]    |
[INFO] [stderr] 48 |     if files.len() < 1 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `files.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `dfile`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "bf5e09a4af72f83e760cff83d3190c6caf2145dddf546a313af7b93e3ec68b64"`
[INFO] running `"docker" "rm" "-f" "bf5e09a4af72f83e760cff83d3190c6caf2145dddf546a313af7b93e3ec68b64"`
[INFO] [stdout] bf5e09a4af72f83e760cff83d3190c6caf2145dddf546a313af7b93e3ec68b64