[INFO] crate wan 0.0.2 is already in cache
[INFO] extracting crate wan 0.0.2 into work/ex/clippy-test-run/sources/stable/reg/wan/0.0.2
[INFO] extracting crate wan 0.0.2 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/wan/0.0.2
[INFO] validating manifest of wan-0.0.2 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 wan-0.0.2 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 wan-0.0.2
[INFO] finished frobbing wan-0.0.2
[INFO] frobbed toml for wan-0.0.2 written to work/ex/clippy-test-run/sources/stable/reg/wan/0.0.2/Cargo.toml
[INFO] started frobbing wan-0.0.2
[INFO] finished frobbing wan-0.0.2
[INFO] frobbed toml for wan-0.0.2 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/wan/0.0.2/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 wan-0.0.2 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/wan/0.0.2:/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] e67654c56c008a053e71d0c6bb3ae855082abe6fe94e0c37ad74e0f73a93e961
[INFO] running `"docker" "start" "-a" "e67654c56c008a053e71d0c6bb3ae855082abe6fe94e0c37ad74e0f73a93e961"`
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking hyper-native-tls v0.2.4
[INFO] [stderr]     Checking wan v0.0.2 (/opt/crater/workdir)
[INFO] [stderr] warning: using `println!("")`
[INFO] [stderr]    --> src/app.rs:195:5
[INFO] [stderr]     |
[INFO] [stderr] 195 |     println!("");
[INFO] [stderr]     |     ^^^^^^^^^^^^ help: replace it with: `println!()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::println_empty_string)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/wandbox.rs:19:15
[INFO] [stderr]    |
[INFO] [stderr] 19 |     Wandbox { url: url }
[INFO] [stderr]    |               ^^^^^^^^ help: replace it with: `url`
[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/wandbox.rs:119:7
[INFO] [stderr]     |
[INFO] [stderr] 119 |       file: file,
[INFO] [stderr]     |       ^^^^^^^^^^ help: replace it with: `file`
[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/wandbox.rs:120:7
[INFO] [stderr]     |
[INFO] [stderr] 120 |       code: code,
[INFO] [stderr]     |       ^^^^^^^^^^ help: replace it with: `code`
[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: using `println!("")`
[INFO] [stderr]    --> src/app.rs:195:5
[INFO] [stderr]     |
[INFO] [stderr] 195 |     println!("");
[INFO] [stderr]     |     ^^^^^^^^^^^^ help: replace it with: `println!()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::println_empty_string)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/wandbox.rs:19:15
[INFO] [stderr]    |
[INFO] [stderr] 19 |     Wandbox { url: url }
[INFO] [stderr]    |               ^^^^^^^^ help: replace it with: `url`
[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/wandbox.rs:119:7
[INFO] [stderr]     |
[INFO] [stderr] 119 |       file: file,
[INFO] [stderr]     |       ^^^^^^^^^^ help: replace it with: `file`
[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/wandbox.rs:120:7
[INFO] [stderr]     |
[INFO] [stderr] 120 |       code: code,
[INFO] [stderr]     |       ^^^^^^^^^^ help: replace it with: `code`
[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/config.rs:8:20
[INFO] [stderr]   |
[INFO] [stderr] 8 | const CONFIG_DIR: &'static str = "~/.config/wan";
[INFO] [stderr]   |                   -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::const_static_lifetime)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/wandbox.rs:10:21
[INFO] [stderr]    |
[INFO] [stderr] 10 | const WANDBOX_URL: &'static str = "https://wandbox.org";
[INFO] [stderr]    |                    -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]  --> src/config.rs:8:20
[INFO] [stderr]   |
[INFO] [stderr] 8 | const CONFIG_DIR: &'static str = "~/.config/wan";
[INFO] [stderr]   |                   -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::const_static_lifetime)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/wandbox.rs:10:21
[INFO] [stderr]    |
[INFO] [stderr] 10 | const WANDBOX_URL: &'static str = "https://wandbox.org";
[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] error: using `clone` on a double-reference; this will copy the reference instead of cloning the inner type
[INFO] [stderr]   --> src/app.rs:62:48
[INFO] [stderr]    |
[INFO] [stderr] 62 |         langs.get_mut(&language).unwrap().push(compiler.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] 62 |         langs.get_mut(&language).unwrap().push(&(*compiler).clone());
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]    |
[INFO] [stderr] 62 |         langs.get_mut(&language).unwrap().push(&wandbox::CompilerInfo::clone(compiler));
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/app.rs:69:36
[INFO] [stderr]    |
[INFO] [stderr] 69 |           if self.show_switches && compiler.switches.len() > 0 {
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!compiler.switches.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: use of `unwrap_or` followed by a function call
[INFO] [stderr]    --> src/app.rs:156:42
[INFO] [stderr]     |
[INFO] [stderr] 156 |     let compiler = self.guess_compiler().unwrap_or("gcc-head".into());
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| "gcc-head".into())`
[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: single-character string constant used as pattern
[INFO] [stderr]    --> src/app.rs:189:33
[INFO] [stderr]     |
[INFO] [stderr] 189 |                option_raw.split("\n").collect::<Vec<_>>());
[INFO] [stderr]     |                                 ^^^^ help: try using a char instead: `'\n'`
[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: single-character string constant used as pattern
[INFO] [stderr]    --> src/app.rs:193:33
[INFO] [stderr]     |
[INFO] [stderr] 193 |                option_raw.split("\n").collect::<Vec<_>>());
[INFO] [stderr]     |                                 ^^^^ help: try using a char instead: `'\n'`
[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] error: using `clone` on a double-reference; this will copy the reference instead of cloning the inner type
[INFO] [stderr]   --> src/app.rs:62:48
[INFO] [stderr]    |
[INFO] [stderr] 62 |         langs.get_mut(&language).unwrap().push(compiler.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] 62 |         langs.get_mut(&language).unwrap().push(&(*compiler).clone());
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]    |
[INFO] [stderr] 62 |         langs.get_mut(&language).unwrap().push(&wandbox::CompilerInfo::clone(compiler));
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/app.rs:69:36
[INFO] [stderr]    |
[INFO] [stderr] 69 |           if self.show_switches && compiler.switches.len() > 0 {
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!compiler.switches.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: use of `unwrap_or` followed by a function call
[INFO] [stderr]    --> src/app.rs:156:42
[INFO] [stderr]     |
[INFO] [stderr] 156 |     let compiler = self.guess_compiler().unwrap_or("gcc-head".into());
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| "gcc-head".into())`
[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: single-character string constant used as pattern
[INFO] [stderr]    --> src/app.rs:189:33
[INFO] [stderr]     |
[INFO] [stderr] 189 |                option_raw.split("\n").collect::<Vec<_>>());
[INFO] [stderr]     |                                 ^^^^ help: try using a char instead: `'\n'`
[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: single-character string constant used as pattern
[INFO] [stderr]    --> src/app.rs:193:33
[INFO] [stderr]     |
[INFO] [stderr] 193 |                option_raw.split("\n").collect::<Vec<_>>());
[INFO] [stderr]     |                                 ^^^^ help: try using a char instead: `'\n'`
[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: single-character string constant used as pattern
[INFO] [stderr]    --> src/app.rs:312:33
[INFO] [stderr]     |
[INFO] [stderr] 312 |                option_raw.split("\n").collect::<Vec<_>>())?;
[INFO] [stderr]     |                                 ^^^^ help: try using a char instead: `'\n'`
[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: single-character string constant used as pattern
[INFO] [stderr]    --> src/app.rs:317:33
[INFO] [stderr]     |
[INFO] [stderr] 317 |                option_raw.split("\n").collect::<Vec<_>>())?;
[INFO] [stderr]     |                                 ^^^^ help: try using a char instead: `'\n'`
[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: single-character string constant used as pattern
[INFO] [stderr]    --> src/app.rs:312:33
[INFO] [stderr]     |
[INFO] [stderr] 312 |                option_raw.split("\n").collect::<Vec<_>>())?;
[INFO] [stderr]     |                                 ^^^^ help: try using a char instead: `'\n'`
[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: single-character string constant used as pattern
[INFO] [stderr]    --> src/app.rs:317:33
[INFO] [stderr]     |
[INFO] [stderr] 317 |                option_raw.split("\n").collect::<Vec<_>>())?;
[INFO] [stderr]     |                                 ^^^^ help: try using a char instead: `'\n'`
[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: use of `unwrap_or` followed by a function call
[INFO] [stderr]   --> src/wandbox.rs:18:19
[INFO] [stderr]    |
[INFO] [stderr] 18 |     let url = url.unwrap_or(WANDBOX_URL.into());
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| WANDBOX_URL.into())`
[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: use of `unwrap_or` followed by a function call
[INFO] [stderr]   --> src/wandbox.rs:18:19
[INFO] [stderr]    |
[INFO] [stderr] 18 |     let url = url.unwrap_or(WANDBOX_URL.into());
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| WANDBOX_URL.into())`
[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] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `wan`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: Could not compile `wan`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "e67654c56c008a053e71d0c6bb3ae855082abe6fe94e0c37ad74e0f73a93e961"`
[INFO] running `"docker" "rm" "-f" "e67654c56c008a053e71d0c6bb3ae855082abe6fe94e0c37ad74e0f73a93e961"`
[INFO] [stdout] e67654c56c008a053e71d0c6bb3ae855082abe6fe94e0c37ad74e0f73a93e961