[INFO] crate dummy_xml 0.1.6 is already in cache
[INFO] extracting crate dummy_xml 0.1.6 into work/ex/clippy-test-run/sources/stable/reg/dummy_xml/0.1.6
[INFO] extracting crate dummy_xml 0.1.6 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/dummy_xml/0.1.6
[INFO] validating manifest of dummy_xml-0.1.6 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 dummy_xml-0.1.6 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 dummy_xml-0.1.6
[INFO] finished frobbing dummy_xml-0.1.6
[INFO] frobbed toml for dummy_xml-0.1.6 written to work/ex/clippy-test-run/sources/stable/reg/dummy_xml/0.1.6/Cargo.toml
[INFO] started frobbing dummy_xml-0.1.6
[INFO] finished frobbing dummy_xml-0.1.6
[INFO] frobbed toml for dummy_xml-0.1.6 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/dummy_xml/0.1.6/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 dummy_xml-0.1.6 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/reg/dummy_xml/0.1.6:/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] 972b52e81da291822ba26e8594be4265748996a1a4df65e0699869d686176a6f
[INFO] running `"docker" "start" "-a" "972b52e81da291822ba26e8594be4265748996a1a4df65e0699869d686176a6f"`
[INFO] [stderr]     Checking dummy_xml v0.1.6 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/node.rs:121:13
[INFO] [stderr]     |
[INFO] [stderr] 121 |             node_type: node_type,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^ help: replace it with: `node_type`
[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/parser.rs:125:35
[INFO] [stderr]     |
[INFO] [stderr] 125 |         Ok(root) => Ok(Document { root: root }),
[INFO] [stderr]     |                                   ^^^^^^^^^^ help: replace it with: `root`
[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/node.rs:121:13
[INFO] [stderr]     |
[INFO] [stderr] 121 |             node_type: node_type,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^ help: replace it with: `node_type`
[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/parser.rs:125:35
[INFO] [stderr]     |
[INFO] [stderr] 125 |         Ok(root) => Ok(Document { root: root }),
[INFO] [stderr]     |                                   ^^^^^^^^^^ help: replace it with: `root`
[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: called `map(f)` on an Option value where `f` is a unit closure
[INFO] [stderr]    --> src/node.rs:320:9
[INFO] [stderr]     |
[INFO] [stderr] 320 |         node.next.as_mut().map(|n| n.prev = raw_ptr);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: try this: `if let Some(n) = node.next.as_mut() { ... }`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::option_map_unit_fn)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#option_map_unit_fn
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/parser.rs:24:23
[INFO] [stderr]    |
[INFO] [stderr] 24 | const LESS_THAN: u8 = '<' as u8;
[INFO] [stderr]    |                       ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::char_lit_as_u8)] on by default
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b'<'
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/parser.rs:25:26
[INFO] [stderr]    |
[INFO] [stderr] 25 | const GREATER_THAN: u8 = '>' as u8;
[INFO] [stderr]    |                          ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b'>'
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/parser.rs:26:19
[INFO] [stderr]    |
[INFO] [stderr] 26 | const SLASH: u8 = '/' as u8;
[INFO] [stderr]    |                   ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b'/'
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/parser.rs:27:19
[INFO] [stderr]    |
[INFO] [stderr] 27 | const EQUAL: u8 = '=' as u8;
[INFO] [stderr]    |                   ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b'='
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/parser.rs:28:30
[INFO] [stderr]    |
[INFO] [stderr] 28 | const EXCLAMATION_MARK: u8 = '!' as u8;
[INFO] [stderr]    |                              ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b'!'
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/parser.rs:29:27
[INFO] [stderr]    |
[INFO] [stderr] 29 | const QUESTION_MARK: u8 = '?' as u8;
[INFO] [stderr]    |                           ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b'?'
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]    --> src/parser.rs:112:31
[INFO] [stderr]     |
[INFO] [stderr] 112 | pub fn parse_string(contents: &String) -> Result<Document, ParseXmlError> {
[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: length comparison to zero
[INFO] [stderr]    --> src/parser.rs:166:24
[INFO] [stderr]     |
[INFO] [stderr] 166 |                     if old_parent.name().len() == 0 {
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `old_parent.name().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: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/parser.rs:261:20
[INFO] [stderr]     |
[INFO] [stderr] 261 |         assert_eq!('a' as u8, 97u8);
[INFO] [stderr]     |                    ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'a'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: called `map(f)` on an Option value where `f` is a unit closure
[INFO] [stderr]  --> src/writer.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     src.first_attribute().map(|attr| write_attribute(attr, des));
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
[INFO] [stderr]   |     |
[INFO] [stderr]   |     help: try this: `if let Some(attr) = src.first_attribute() { write_attribute(attr, des) }`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#option_map_unit_fn
[INFO] [stderr] 
[INFO] [stderr] warning: called `map(f)` on an Option value where `f` is a unit closure
[INFO] [stderr]  --> src/writer.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     src.first_child().map(|node| write(node, des));
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
[INFO] [stderr]   |     |
[INFO] [stderr]   |     help: try this: `if let Some(node) = src.first_child() { write(node, des) }`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#option_map_unit_fn
[INFO] [stderr] 
[INFO] [stderr] warning: called `map(f)` on an Option value where `f` is a unit closure
[INFO] [stderr]   --> src/writer.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     src.next_sibling().map(|node| write(node, des));
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
[INFO] [stderr]    |     |
[INFO] [stderr]    |     help: try this: `if let Some(node) = src.next_sibling() { write(node, des) }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#option_map_unit_fn
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/writer.rs:14:29
[INFO] [stderr]    |
[INFO] [stderr] 14 |     if src.value().contains("'") {
[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: called `map(f)` on an Option value where `f` is a unit closure
[INFO] [stderr]   --> src/writer.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     src.next_attribute().map(|attr| write_attribute(attr, des));
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
[INFO] [stderr]    |     |
[INFO] [stderr]    |     help: try this: `if let Some(attr) = src.next_attribute() { write_attribute(attr, des) }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#option_map_unit_fn
[INFO] [stderr] 
[INFO] [stderr] warning: called `map(f)` on an Option value where `f` is a unit closure
[INFO] [stderr]    --> src/node.rs:320:9
[INFO] [stderr]     |
[INFO] [stderr] 320 |         node.next.as_mut().map(|n| n.prev = raw_ptr);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: try this: `if let Some(n) = node.next.as_mut() { ... }`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::option_map_unit_fn)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#option_map_unit_fn
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/parser.rs:24:23
[INFO] [stderr]    |
[INFO] [stderr] 24 | const LESS_THAN: u8 = '<' as u8;
[INFO] [stderr]    |                       ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::char_lit_as_u8)] on by default
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b'<'
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/parser.rs:25:26
[INFO] [stderr]    |
[INFO] [stderr] 25 | const GREATER_THAN: u8 = '>' as u8;
[INFO] [stderr]    |                          ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b'>'
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/parser.rs:26:19
[INFO] [stderr]    |
[INFO] [stderr] 26 | const SLASH: u8 = '/' as u8;
[INFO] [stderr]    |                   ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b'/'
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/parser.rs:27:19
[INFO] [stderr]    |
[INFO] [stderr] 27 | const EQUAL: u8 = '=' as u8;
[INFO] [stderr]    |                   ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b'='
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/parser.rs:28:30
[INFO] [stderr]    |
[INFO] [stderr] 28 | const EXCLAMATION_MARK: u8 = '!' as u8;
[INFO] [stderr]    |                              ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b'!'
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/parser.rs:29:27
[INFO] [stderr]    |
[INFO] [stderr] 29 | const QUESTION_MARK: u8 = '?' as u8;
[INFO] [stderr]    |                           ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b'?'
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]    --> src/parser.rs:112:31
[INFO] [stderr]     |
[INFO] [stderr] 112 | pub fn parse_string(contents: &String) -> Result<Document, ParseXmlError> {
[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: length comparison to zero
[INFO] [stderr]    --> src/parser.rs:166:24
[INFO] [stderr]     |
[INFO] [stderr] 166 |                     if old_parent.name().len() == 0 {
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `old_parent.name().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: called `map(f)` on an Option value where `f` is a unit closure
[INFO] [stderr]  --> src/writer.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     src.first_attribute().map(|attr| write_attribute(attr, des));
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
[INFO] [stderr]   |     |
[INFO] [stderr]   |     help: try this: `if let Some(attr) = src.first_attribute() { write_attribute(attr, des) }`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#option_map_unit_fn
[INFO] [stderr] 
[INFO] [stderr] warning: called `map(f)` on an Option value where `f` is a unit closure
[INFO] [stderr]  --> src/writer.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     src.first_child().map(|node| write(node, des));
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
[INFO] [stderr]   |     |
[INFO] [stderr]   |     help: try this: `if let Some(node) = src.first_child() { write(node, des) }`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#option_map_unit_fn
[INFO] [stderr] 
[INFO] [stderr] warning: called `map(f)` on an Option value where `f` is a unit closure
[INFO] [stderr]   --> src/writer.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     src.next_sibling().map(|node| write(node, des));
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
[INFO] [stderr]    |     |
[INFO] [stderr]    |     help: try this: `if let Some(node) = src.next_sibling() { write(node, des) }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#option_map_unit_fn
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/writer.rs:14:29
[INFO] [stderr]    |
[INFO] [stderr] 14 |     if src.value().contains("'") {
[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: called `map(f)` on an Option value where `f` is a unit closure
[INFO] [stderr]   --> src/writer.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     src.next_attribute().map(|attr| write_attribute(attr, des));
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
[INFO] [stderr]    |     |
[INFO] [stderr]    |     help: try this: `if let Some(attr) = src.next_attribute() { write_attribute(attr, des) }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#option_map_unit_fn
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.15s
[INFO] running `"docker" "inspect" "972b52e81da291822ba26e8594be4265748996a1a4df65e0699869d686176a6f"`
[INFO] running `"docker" "rm" "-f" "972b52e81da291822ba26e8594be4265748996a1a4df65e0699869d686176a6f"`
[INFO] [stdout] 972b52e81da291822ba26e8594be4265748996a1a4df65e0699869d686176a6f