[INFO] crate handlebars 1.1.0 is already in cache
[INFO] extracting crate handlebars 1.1.0 into work/ex/clippy-test-run/sources/stable/reg/handlebars/1.1.0
[INFO] extracting crate handlebars 1.1.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/handlebars/1.1.0
[INFO] validating manifest of handlebars-1.1.0 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 handlebars-1.1.0 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 handlebars-1.1.0
[INFO] finished frobbing handlebars-1.1.0
[INFO] frobbed toml for handlebars-1.1.0 written to work/ex/clippy-test-run/sources/stable/reg/handlebars/1.1.0/Cargo.toml
[INFO] started frobbing handlebars-1.1.0
[INFO] finished frobbing handlebars-1.1.0
[INFO] frobbed toml for handlebars-1.1.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/handlebars/1.1.0/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 handlebars-1.1.0 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/handlebars/1.1.0:/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] 76744da39f224eb7138a417246ddbd08a0ab69afd22541747a4861d6a0f5f8c1
[INFO] running `"docker" "start" "-a" "76744da39f224eb7138a417246ddbd08a0ab69afd22541747a4861d6a0f5f8c1"`
[INFO] [stderr]    Compiling pest_generator v2.1.0
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking handlebars v1.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/context.rs:207:13
[INFO] [stderr]     |
[INFO] [stderr] 207 |             addr: addr,
[INFO] [stderr]     |             ^^^^^^^^^^ help: replace it with: `addr`
[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/helpers/helper_with.rs:108:13
[INFO] [stderr]     |
[INFO] [stderr] 108 |             addr: addr,
[INFO] [stderr]     |             ^^^^^^^^^^ help: replace it with: `addr`
[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/helpers/helper_with.rs:149:13
[INFO] [stderr]     |
[INFO] [stderr] 149 |             addr: addr,
[INFO] [stderr]     |             ^^^^^^^^^^ help: replace it with: `addr`
[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/helpers/helper_with.rs:193:13
[INFO] [stderr]     |
[INFO] [stderr] 193 |             addr: addr,
[INFO] [stderr]     |             ^^^^^^^^^^ help: replace it with: `addr`
[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/render.rs:897:9
[INFO] [stderr]     |
[INFO] [stderr] 897 |         elements: elements,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^ help: replace it with: `elements`
[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/context.rs:207:13
[INFO] [stderr]     |
[INFO] [stderr] 207 |             addr: addr,
[INFO] [stderr]     |             ^^^^^^^^^^ help: replace it with: `addr`
[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/helpers/helper_with.rs:108:13
[INFO] [stderr]     |
[INFO] [stderr] 108 |             addr: addr,
[INFO] [stderr]     |             ^^^^^^^^^^ help: replace it with: `addr`
[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/helpers/helper_with.rs:149:13
[INFO] [stderr]     |
[INFO] [stderr] 149 |             addr: addr,
[INFO] [stderr]     |             ^^^^^^^^^^ help: replace it with: `addr`
[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/helpers/helper_with.rs:193:13
[INFO] [stderr]     |
[INFO] [stderr] 193 |             addr: addr,
[INFO] [stderr]     |             ^^^^^^^^^^ help: replace it with: `addr`
[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/render.rs:897:9
[INFO] [stderr]     |
[INFO] [stderr] 897 |         elements: elements,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^ help: replace it with: `elements`
[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: this loop could be written as a `for` loop
[INFO] [stderr]   --> src/context.rs:73:26
[INFO] [stderr]    |
[INFO] [stderr] 73 |     while let Some(sg) = parser.next() {
[INFO] [stderr]    |                          ^^^^^^^^^^^^^ help: try: `for sg in parser { .. }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::while_let_on_iterator)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#while_let_on_iterator
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/context.rs:96:24
[INFO] [stderr]    |
[INFO] [stderr] 96 |       let mut base_map = match base {
[INFO] [stderr]    |  ________________________^
[INFO] [stderr] 97 | |         &Json::Object(ref m) => m.clone(),
[INFO] [stderr] 98 | |         _ => Map::new(),
[INFO] [stderr] 99 | |     };
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 96 |     let mut base_map = match *base {
[INFO] [stderr] 97 |         Json::Object(ref m) => m.clone(),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]    --> src/context.rs:135:32
[INFO] [stderr]     |
[INFO] [stderr] 135 |         let paths: Vec<&str> = path_stack.iter().map(|x| *x).collect();
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: Consider calling the dedicated `cloned` method: `path_stack.iter().cloned()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::map_clone)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/error.rs:258:9
[INFO] [stderr]     |
[INFO] [stderr] 258 | /         if let &TemplateRenderError::RenderError(ref e) = self {
[INFO] [stderr] 259 | |             Some(&e)
[INFO] [stderr] 260 | |         } else {
[INFO] [stderr] 261 | |             None
[INFO] [stderr] 262 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 258 |         if let TemplateRenderError::RenderError(ref e) = *self {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^   ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this lifetime isn't used in the function definition
[INFO] [stderr]   --> src/helpers/helper_log.rs:20:24
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn call<'reg: 'rc, 'rc>(
[INFO] [stderr]    |                        ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::extra_unused_lifetimes)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#extra_unused_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: this lifetime isn't used in the function definition
[INFO] [stderr]   --> src/helpers/helper_log.rs:20:13
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn call<'reg: 'rc, 'rc>(
[INFO] [stderr]    |             ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#extra_unused_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: this lifetime isn't used in the function definition
[INFO] [stderr]   --> src/helpers/helper_lookup.rs:15:24
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn call<'reg: 'rc, 'rc>(
[INFO] [stderr]    |                        ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#extra_unused_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: this lifetime isn't used in the function definition
[INFO] [stderr]   --> src/helpers/helper_lookup.rs:15:13
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn call<'reg: 'rc, 'rc>(
[INFO] [stderr]    |             ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#extra_unused_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/helpers/helper_lookup.rs:31:21
[INFO] [stderr]    |
[INFO] [stderr] 31 |           let value = match collection_value.value() {
[INFO] [stderr]    |  _____________________^
[INFO] [stderr] 32 | |             &Json::Array(ref v) => index
[INFO] [stderr] 33 | |                 .value()
[INFO] [stderr] 34 | |                 .as_u64()
[INFO] [stderr] ...  |
[INFO] [stderr] 43 | |             _ => &null,
[INFO] [stderr] 44 | |         };
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 31 |         let value = match *collection_value.value() {
[INFO] [stderr] 32 |             Json::Array(ref v) => index
[INFO] [stderr] 33 |                 .value()
[INFO] [stderr] 34 |                 .as_u64()
[INFO] [stderr] 35 |                 .and_then(|u| Some(u as usize))
[INFO] [stderr] 36 |                 .and_then(|u| v.get(u))
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: this lifetime isn't used in the function definition
[INFO] [stderr]   --> src/helpers/helper_with.rs:15:24
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn call<'reg: 'rc, 'rc>(
[INFO] [stderr]    |                        ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#extra_unused_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: this lifetime isn't used in the function definition
[INFO] [stderr]   --> src/helpers/helper_with.rs:15:13
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn call<'reg: 'rc, 'rc>(
[INFO] [stderr]    |             ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#extra_unused_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/registry.rs:93:28
[INFO] [stderr]    |
[INFO] [stderr] 93 |             ds.starts_with(".") || ds.starts_with("#") || !ds.ends_with(suffix)
[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: single-character string constant used as pattern
[INFO] [stderr]   --> src/registry.rs:93:51
[INFO] [stderr]    |
[INFO] [stderr] 93 |             ds.starts_with(".") || ds.starts_with("#") || !ds.ends_with(suffix)
[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: you seem to be trying to use `&Box<T>`. Consider using just `&T`
[INFO] [stderr]    --> src/registry.rs:319:52
[INFO] [stderr]     |
[INFO] [stderr] 319 |     pub fn get_helper(&self, name: &str) -> Option<&Box<HelperDef + 'static>> {
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `&HelperDef + 'static`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::borrowed_box)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#borrowed_box
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use `&Box<T>`. Consider using just `&T`
[INFO] [stderr]    --> src/registry.rs:324:55
[INFO] [stderr]     |
[INFO] [stderr] 324 |     pub fn get_decorator(&self, name: &str) -> Option<&Box<DirectiveDef + 'static>> {
[INFO] [stderr]     |                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `&DirectiveDef + 'static`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#borrowed_box
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use `&Box<T>`. Consider using just `&T`
[INFO] [stderr]    --> src/render.rs:556:9
[INFO] [stderr]     |
[INFO] [stderr] 556 |     hd: &Box<HelperDef>,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^ help: try: `&HelperDef`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#borrowed_box
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/render.rs:591:9
[INFO] [stderr]     |
[INFO] [stderr] 591 | /         match self {
[INFO] [stderr] 592 | |             &Parameter::Name(ref name) => Ok(name.to_owned()),
[INFO] [stderr] 593 | |             &Parameter::Subexpression(_) => {
[INFO] [stderr] 594 | |                 self.expand(registry, ctx, rc).map(|v| v.value().render())
[INFO] [stderr] 595 | |             }
[INFO] [stderr] 596 | |             &Parameter::Literal(ref j) => Ok(j.render()),
[INFO] [stderr] 597 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 591 |         match *self {
[INFO] [stderr] 592 |             Parameter::Name(ref name) => Ok(name.to_owned()),
[INFO] [stderr] 593 |             Parameter::Subexpression(_) => {
[INFO] [stderr] 594 |                 self.expand(registry, ctx, rc).map(|v| v.value().render())
[INFO] [stderr] 595 |             }
[INFO] [stderr] 596 |             Parameter::Literal(ref j) => Ok(j.render()),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/render.rs:606:9
[INFO] [stderr]     |
[INFO] [stderr] 606 | /         match self {
[INFO] [stderr] 607 | |             &Parameter::Name(ref name) => {
[INFO] [stderr] 608 | |                 let strict = registry.strict_mode();
[INFO] [stderr] 609 | |                 if let Some(value) = rc.get_local_var(name) {
[INFO] [stderr] ...   |
[INFO] [stderr] 671 | |             },
[INFO] [stderr] 672 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 606 |         match *self {
[INFO] [stderr] 607 |             Parameter::Name(ref name) => {
[INFO] [stderr] 608 |                 let strict = registry.strict_mode();
[INFO] [stderr] 609 |                 if let Some(value) = rc.get_local_var(name) {
[INFO] [stderr] 610 |                     // local var, @first, @last for example
[INFO] [stderr] 611 |                     // here we count it as derived value, and simply clone it
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/render.rs:647:49
[INFO] [stderr]     |
[INFO] [stderr] 647 |               &Parameter::Subexpression(ref t) => match t.as_element() {
[INFO] [stderr]     |  _________________________________________________^
[INFO] [stderr] 648 | |                 &Expression(ref expr) => expr.expand(registry, ctx, rc),
[INFO] [stderr] 649 | |                 &HelperExpression(ref ht) => {
[INFO] [stderr] 650 | |                     let h = Helper::try_from_template(ht, registry, ctx, rc)?;
[INFO] [stderr] ...   |
[INFO] [stderr] 670 | |                 _ => unreachable!(),
[INFO] [stderr] 671 | |             },
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 647 |             &Parameter::Subexpression(ref t) => match *t.as_element() {
[INFO] [stderr] 648 |                 Expression(ref expr) => expr.expand(registry, ctx, rc),
[INFO] [stderr] 649 |                 HelperExpression(ref ht) => {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/template.rs:60:9
[INFO] [stderr]    |
[INFO] [stderr] 60 | /         match self.as_element() {
[INFO] [stderr] 61 | |             &TemplateElement::HelperExpression(_) => true,
[INFO] [stderr] 62 | |             _ => false,
[INFO] [stderr] 63 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 60 |         match *self.as_element() {
[INFO] [stderr] 61 |             TemplateElement::HelperExpression(_) => true,
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/template.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 | /         match self.as_element() {
[INFO] [stderr] 72 | |             &HelperExpression(ref ht) => &ht.name,
[INFO] [stderr] 73 | |             &Expression(ref p) => match p {
[INFO] [stderr] 74 | |                 &Parameter::Name(ref s) => s,
[INFO] [stderr] ...  |
[INFO] [stderr] 77 | |             _ => unreachable!(),
[INFO] [stderr] 78 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 71 |         match *self.as_element() {
[INFO] [stderr] 72 |             HelperExpression(ref ht) => &ht.name,
[INFO] [stderr] 73 |             Expression(ref p) => match p {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/template.rs:73:35
[INFO] [stderr]    |
[INFO] [stderr] 73 |               &Expression(ref p) => match p {
[INFO] [stderr]    |  ___________________________________^
[INFO] [stderr] 74 | |                 &Parameter::Name(ref s) => s,
[INFO] [stderr] 75 | |                 _ => unreachable!(),
[INFO] [stderr] 76 | |             },
[INFO] [stderr]    | |_____________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 73 |             &Expression(ref p) => match *p {
[INFO] [stderr] 74 |                 Parameter::Name(ref s) => s,
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/template.rs:82:9
[INFO] [stderr]    |
[INFO] [stderr] 82 | /         match self.as_element() {
[INFO] [stderr] 83 | |             &HelperExpression(ref ht) => Some(&ht.params),
[INFO] [stderr] 84 | |             _ => None,
[INFO] [stderr] 85 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 82 |         match *self.as_element() {
[INFO] [stderr] 83 |             HelperExpression(ref ht) => Some(&ht.params),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/template.rs:89:9
[INFO] [stderr]    |
[INFO] [stderr] 89 | /         match self.as_element() {
[INFO] [stderr] 90 | |             &HelperExpression(ref ht) => Some(&ht.hash),
[INFO] [stderr] 91 | |             _ => None,
[INFO] [stderr] 92 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 89 |         match *self.as_element() {
[INFO] [stderr] 90 |             HelperExpression(ref ht) => Some(&ht.hash),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: this loop could be written as a `while let` loop
[INFO] [stderr]    --> src/template.rs:249:9
[INFO] [stderr]     |
[INFO] [stderr] 249 | /         loop {
[INFO] [stderr] 250 | |             if let Some(n) = it.peek() {
[INFO] [stderr] 251 | |                 let n_span = n.clone().into_span();
[INFO] [stderr] 252 | |                 if n_span.end() > param_span.end() {
[INFO] [stderr] ...   |
[INFO] [stderr] 259 | |             it.next();
[INFO] [stderr] 260 | |         }
[INFO] [stderr]     | |_________^ help: try: `while let Some(n) = it.peek() { .. }`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::while_let_loop)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#while_let_loop
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/value.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 | /         match self {
[INFO] [stderr] 21 | |             &ScopedJson::Constant(j) => j,
[INFO] [stderr] 22 | |             &ScopedJson::Derived(ref j) => j,
[INFO] [stderr] 23 | |             &ScopedJson::Context(j) => j,
[INFO] [stderr] 24 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 20 |         match *self {
[INFO] [stderr] 21 |             ScopedJson::Constant(j) => j,
[INFO] [stderr] 22 |             ScopedJson::Derived(ref j) => j,
[INFO] [stderr] 23 |             ScopedJson::Context(j) => j,
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: this loop could be written as a `for` loop
[INFO] [stderr]   --> src/context.rs:73:26
[INFO] [stderr]    |
[INFO] [stderr] 73 |     while let Some(sg) = parser.next() {
[INFO] [stderr]    |                          ^^^^^^^^^^^^^ help: try: `for sg in parser { .. }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::while_let_on_iterator)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#while_let_on_iterator
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/context.rs:96:24
[INFO] [stderr]    |
[INFO] [stderr] 96 |       let mut base_map = match base {
[INFO] [stderr]    |  ________________________^
[INFO] [stderr] 97 | |         &Json::Object(ref m) => m.clone(),
[INFO] [stderr] 98 | |         _ => Map::new(),
[INFO] [stderr] 99 | |     };
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 96 |     let mut base_map = match *base {
[INFO] [stderr] 97 |         Json::Object(ref m) => m.clone(),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]    --> src/context.rs:135:32
[INFO] [stderr]     |
[INFO] [stderr] 135 |         let paths: Vec<&str> = path_stack.iter().map(|x| *x).collect();
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: Consider calling the dedicated `cloned` method: `path_stack.iter().cloned()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::map_clone)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] 
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]    --> src/directives/mod.rs:177:26
[INFO] [stderr]     |
[INFO] [stderr] 177 |                         .unwrap_or(Context::null());
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(Context::null)`
[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: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/error.rs:258:9
[INFO] [stderr]     |
[INFO] [stderr] 258 | /         if let &TemplateRenderError::RenderError(ref e) = self {
[INFO] [stderr] 259 | |             Some(&e)
[INFO] [stderr] 260 | |         } else {
[INFO] [stderr] 261 | |             None
[INFO] [stderr] 262 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 258 |         if let TemplateRenderError::RenderError(ref e) = *self {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^   ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this lifetime isn't used in the function definition
[INFO] [stderr]   --> src/helpers/helper_log.rs:20:24
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn call<'reg: 'rc, 'rc>(
[INFO] [stderr]    |                        ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::extra_unused_lifetimes)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#extra_unused_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: this lifetime isn't used in the function definition
[INFO] [stderr]   --> src/helpers/helper_log.rs:20:13
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn call<'reg: 'rc, 'rc>(
[INFO] [stderr]    |             ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#extra_unused_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: this lifetime isn't used in the function definition
[INFO] [stderr]   --> src/helpers/helper_lookup.rs:15:24
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn call<'reg: 'rc, 'rc>(
[INFO] [stderr]    |                        ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#extra_unused_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: this lifetime isn't used in the function definition
[INFO] [stderr]   --> src/helpers/helper_lookup.rs:15:13
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn call<'reg: 'rc, 'rc>(
[INFO] [stderr]    |             ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#extra_unused_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/helpers/helper_lookup.rs:31:21
[INFO] [stderr]    |
[INFO] [stderr] 31 |           let value = match collection_value.value() {
[INFO] [stderr]    |  _____________________^
[INFO] [stderr] 32 | |             &Json::Array(ref v) => index
[INFO] [stderr] 33 | |                 .value()
[INFO] [stderr] 34 | |                 .as_u64()
[INFO] [stderr] ...  |
[INFO] [stderr] 43 | |             _ => &null,
[INFO] [stderr] 44 | |         };
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 31 |         let value = match *collection_value.value() {
[INFO] [stderr] 32 |             Json::Array(ref v) => index
[INFO] [stderr] 33 |                 .value()
[INFO] [stderr] 34 |                 .as_u64()
[INFO] [stderr] 35 |                 .and_then(|u| Some(u as usize))
[INFO] [stderr] 36 |                 .and_then(|u| v.get(u))
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: this lifetime isn't used in the function definition
[INFO] [stderr]   --> src/helpers/helper_with.rs:15:24
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn call<'reg: 'rc, 'rc>(
[INFO] [stderr]    |                        ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#extra_unused_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: this lifetime isn't used in the function definition
[INFO] [stderr]   --> src/helpers/helper_with.rs:15:13
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn call<'reg: 'rc, 'rc>(
[INFO] [stderr]    |             ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#extra_unused_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> src/helpers/mod.rs:241:34
[INFO] [stderr]     |
[INFO] [stderr] 241 |                     let output = format!("{}", h.hash_get("value").unwrap().value().render());
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `h.hash_get("value").unwrap().value().render().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/registry.rs:93:28
[INFO] [stderr]    |
[INFO] [stderr] 93 |             ds.starts_with(".") || ds.starts_with("#") || !ds.ends_with(suffix)
[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: single-character string constant used as pattern
[INFO] [stderr]   --> src/registry.rs:93:51
[INFO] [stderr]    |
[INFO] [stderr] 93 |             ds.starts_with(".") || ds.starts_with("#") || !ds.ends_with(suffix)
[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: you seem to be trying to use `&Box<T>`. Consider using just `&T`
[INFO] [stderr]    --> src/registry.rs:319:52
[INFO] [stderr]     |
[INFO] [stderr] 319 |     pub fn get_helper(&self, name: &str) -> Option<&Box<HelperDef + 'static>> {
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `&HelperDef + 'static`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::borrowed_box)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#borrowed_box
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use `&Box<T>`. Consider using just `&T`
[INFO] [stderr]    --> src/registry.rs:324:55
[INFO] [stderr]     |
[INFO] [stderr] 324 |     pub fn get_decorator(&self, name: &str) -> Option<&Box<DirectiveDef + 'static>> {
[INFO] [stderr]     |                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `&DirectiveDef + 'static`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#borrowed_box
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]    --> src/registry.rs:565:13
[INFO] [stderr]     |
[INFO] [stderr] 565 |             let _ = DirBuilder::new().create(dir.path().join("french")).unwrap();
[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/registry.rs:566:13
[INFO] [stderr]     |
[INFO] [stderr] 566 | /             let _ = DirBuilder::new()
[INFO] [stderr] 567 | |                 .create(dir.path().join("portugese"))
[INFO] [stderr] 568 | |                 .unwrap();
[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/registry.rs:569:13
[INFO] [stderr]     |
[INFO] [stderr] 569 | /             let _ = DirBuilder::new()
[INFO] [stderr] 570 | |                 .create(dir.path().join("italian"))
[INFO] [stderr] 571 | |                 .unwrap();
[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: you seem to be trying to use `&Box<T>`. Consider using just `&T`
[INFO] [stderr]    --> src/render.rs:556:9
[INFO] [stderr]     |
[INFO] [stderr] 556 |     hd: &Box<HelperDef>,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^ help: try: `&HelperDef`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#borrowed_box
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/render.rs:591:9
[INFO] [stderr]     |
[INFO] [stderr] 591 | /         match self {
[INFO] [stderr] 592 | |             &Parameter::Name(ref name) => Ok(name.to_owned()),
[INFO] [stderr] 593 | |             &Parameter::Subexpression(_) => {
[INFO] [stderr] 594 | |                 self.expand(registry, ctx, rc).map(|v| v.value().render())
[INFO] [stderr] 595 | |             }
[INFO] [stderr] 596 | |             &Parameter::Literal(ref j) => Ok(j.render()),
[INFO] [stderr] 597 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 591 |         match *self {
[INFO] [stderr] 592 |             Parameter::Name(ref name) => Ok(name.to_owned()),
[INFO] [stderr] 593 |             Parameter::Subexpression(_) => {
[INFO] [stderr] 594 |                 self.expand(registry, ctx, rc).map(|v| v.value().render())
[INFO] [stderr] 595 |             }
[INFO] [stderr] 596 |             Parameter::Literal(ref j) => Ok(j.render()),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/render.rs:606:9
[INFO] [stderr]     |
[INFO] [stderr] 606 | /         match self {
[INFO] [stderr] 607 | |             &Parameter::Name(ref name) => {
[INFO] [stderr] 608 | |                 let strict = registry.strict_mode();
[INFO] [stderr] 609 | |                 if let Some(value) = rc.get_local_var(name) {
[INFO] [stderr] ...   |
[INFO] [stderr] 671 | |             },
[INFO] [stderr] 672 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 606 |         match *self {
[INFO] [stderr] 607 |             Parameter::Name(ref name) => {
[INFO] [stderr] 608 |                 let strict = registry.strict_mode();
[INFO] [stderr] 609 |                 if let Some(value) = rc.get_local_var(name) {
[INFO] [stderr] 610 |                     // local var, @first, @last for example
[INFO] [stderr] 611 |                     // here we count it as derived value, and simply clone it
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/render.rs:647:49
[INFO] [stderr]     |
[INFO] [stderr] 647 |               &Parameter::Subexpression(ref t) => match t.as_element() {
[INFO] [stderr]     |  _________________________________________________^
[INFO] [stderr] 648 | |                 &Expression(ref expr) => expr.expand(registry, ctx, rc),
[INFO] [stderr] 649 | |                 &HelperExpression(ref ht) => {
[INFO] [stderr] 650 | |                     let h = Helper::try_from_template(ht, registry, ctx, rc)?;
[INFO] [stderr] ...   |
[INFO] [stderr] 670 | |                 _ => unreachable!(),
[INFO] [stderr] 671 | |             },
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 647 |             &Parameter::Subexpression(ref t) => match *t.as_element() {
[INFO] [stderr] 648 |                 Expression(ref expr) => expr.expand(registry, ctx, rc),
[INFO] [stderr] 649 |                 HelperExpression(ref ht) => {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> src/render.rs:971:27
[INFO] [stderr]     |
[INFO] [stderr] 971 |                 out.write(format!("{}", h.param(0).unwrap().value().render()).as_ref())
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `h.param(0).unwrap().value().render().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: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/template.rs:60:9
[INFO] [stderr]    |
[INFO] [stderr] 60 | /         match self.as_element() {
[INFO] [stderr] 61 | |             &TemplateElement::HelperExpression(_) => true,
[INFO] [stderr] 62 | |             _ => false,
[INFO] [stderr] 63 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 60 |         match *self.as_element() {
[INFO] [stderr] 61 |             TemplateElement::HelperExpression(_) => true,
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/template.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 | /         match self.as_element() {
[INFO] [stderr] 72 | |             &HelperExpression(ref ht) => &ht.name,
[INFO] [stderr] 73 | |             &Expression(ref p) => match p {
[INFO] [stderr] 74 | |                 &Parameter::Name(ref s) => s,
[INFO] [stderr] ...  |
[INFO] [stderr] 77 | |             _ => unreachable!(),
[INFO] [stderr] 78 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 71 |         match *self.as_element() {
[INFO] [stderr] 72 |             HelperExpression(ref ht) => &ht.name,
[INFO] [stderr] 73 |             Expression(ref p) => match p {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/template.rs:73:35
[INFO] [stderr]    |
[INFO] [stderr] 73 |               &Expression(ref p) => match p {
[INFO] [stderr]    |  ___________________________________^
[INFO] [stderr] 74 | |                 &Parameter::Name(ref s) => s,
[INFO] [stderr] 75 | |                 _ => unreachable!(),
[INFO] [stderr] 76 | |             },
[INFO] [stderr]    | |_____________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 73 |             &Expression(ref p) => match *p {
[INFO] [stderr] 74 |                 Parameter::Name(ref s) => s,
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/template.rs:82:9
[INFO] [stderr]    |
[INFO] [stderr] 82 | /         match self.as_element() {
[INFO] [stderr] 83 | |             &HelperExpression(ref ht) => Some(&ht.params),
[INFO] [stderr] 84 | |             _ => None,
[INFO] [stderr] 85 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 82 |         match *self.as_element() {
[INFO] [stderr] 83 |             HelperExpression(ref ht) => Some(&ht.params),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/template.rs:89:9
[INFO] [stderr]    |
[INFO] [stderr] 89 | /         match self.as_element() {
[INFO] [stderr] 90 | |             &HelperExpression(ref ht) => Some(&ht.hash),
[INFO] [stderr] 91 | |             _ => None,
[INFO] [stderr] 92 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 89 |         match *self.as_element() {
[INFO] [stderr] 90 |             HelperExpression(ref ht) => Some(&ht.hash),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: this loop could be written as a `while let` loop
[INFO] [stderr]    --> src/template.rs:249:9
[INFO] [stderr]     |
[INFO] [stderr] 249 | /         loop {
[INFO] [stderr] 250 | |             if let Some(n) = it.peek() {
[INFO] [stderr] 251 | |                 let n_span = n.clone().into_span();
[INFO] [stderr] 252 | |                 if n_span.end() > param_span.end() {
[INFO] [stderr] ...   |
[INFO] [stderr] 259 | |             it.next();
[INFO] [stderr] 260 | |         }
[INFO] [stderr]     | |_________^ help: try: `while let Some(n) = it.peek() { .. }`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::while_let_loop)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#while_let_loop
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/template.rs:749:10
[INFO] [stderr]     |
[INFO] [stderr] 749 |         *t.elements.get(0).unwrap(),
[INFO] [stderr]     |          ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&t.elements[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/template.rs:759:17
[INFO] [stderr]     |
[INFO] [stderr] 759 |     assert_eq!(*t.elements.get(0).unwrap(), RawString(source.to_string()));
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&t.elements[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/template.rs:768:10
[INFO] [stderr]     |
[INFO] [stderr] 768 |         *t.elements.get(0).unwrap(),
[INFO] [stderr]     |          ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&t.elements[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/template.rs:782:17
[INFO] [stderr]     |
[INFO] [stderr] 782 |     assert_eq!(*t.elements.get(0).unwrap(), RawString("<h1>".to_string()));
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&t.elements[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/template.rs:784:10
[INFO] [stderr]     |
[INFO] [stderr] 784 |         *t.elements.get(1).unwrap(),
[INFO] [stderr]     |          ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&t.elements[1]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/template.rs:789:10
[INFO] [stderr]     |
[INFO] [stderr] 789 |         *t.elements.get(3).unwrap(),
[INFO] [stderr]     |          ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&t.elements[3]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/template.rs:793:12
[INFO] [stderr]     |
[INFO] [stderr] 793 |     match *t.elements.get(5).unwrap() {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&t.elements[5]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/template.rs:804:12
[INFO] [stderr]     |
[INFO] [stderr] 804 |     match *t.elements.get(7).unwrap() {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&t.elements[7]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/template.rs:808:25
[INFO] [stderr]     |
[INFO] [stderr] 808 |             assert_eq!(*(h.params.get(0).unwrap()), Parameter::Name("bar".into()));
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&h.params[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/template.rs:815:12
[INFO] [stderr]     |
[INFO] [stderr] 815 |     match *t.elements.get(9).unwrap() {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&t.elements[9]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/template.rs:845:12
[INFO] [stderr]     |
[INFO] [stderr] 845 |     match *t.elements.get(0).unwrap() {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&t.elements[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/template.rs:849:13
[INFO] [stderr]     |
[INFO] [stderr] 849 | /             if let &Parameter::Subexpression(ref t) = h.params.get(0).unwrap() {
[INFO] [stderr] 850 | |                 assert_eq!(t.name(), "bar".to_owned());
[INFO] [stderr] 851 | |             } else {
[INFO] [stderr] 852 | |                 panic!("Subexpression expected");
[INFO] [stderr] 853 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 849 |             if let Parameter::Subexpression(ref t) = *h.params.get(0).unwrap() {
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^   ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/template.rs:849:55
[INFO] [stderr]     |
[INFO] [stderr] 849 |             if let &Parameter::Subexpression(ref t) = h.params.get(0).unwrap() {
[INFO] [stderr]     |                                                       ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&h.params[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/template.rs:860:12
[INFO] [stderr]     |
[INFO] [stderr] 860 |     match *t.elements.get(1).unwrap() {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&t.elements[1]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/template.rs:864:13
[INFO] [stderr]     |
[INFO] [stderr] 864 | /             if let &Parameter::Subexpression(ref t) = h.params.get(0).unwrap() {
[INFO] [stderr] 865 | |                 assert_eq!(t.name(), "bar".to_owned());
[INFO] [stderr] 866 | |                 if let Some(&Parameter::Name(ref n)) = t.params().unwrap().get(0) {
[INFO] [stderr] 867 | |                     assert_eq!(n, "baz");
[INFO] [stderr] ...   |
[INFO] [stderr] 872 | |                 panic!("Subexpression expected");
[INFO] [stderr] 873 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 864 |             if let Parameter::Subexpression(ref t) = *h.params.get(0).unwrap() {
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^   ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/template.rs:864:55
[INFO] [stderr]     |
[INFO] [stderr] 864 |             if let &Parameter::Subexpression(ref t) = h.params.get(0).unwrap() {
[INFO] [stderr]     |                                                       ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&h.params[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/template.rs:880:12
[INFO] [stderr]     |
[INFO] [stderr] 880 |     match *t.elements.get(3).unwrap() {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&t.elements[3]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/template.rs:886:13
[INFO] [stderr]     |
[INFO] [stderr] 886 | /             if let &Parameter::Subexpression(ref t) = h.params.get(0).unwrap() {
[INFO] [stderr] 887 | |                 assert_eq!(t.name(), "baz".to_owned());
[INFO] [stderr] 888 | |                 if let Some(&Parameter::Name(ref n)) = t.params().unwrap().get(0) {
[INFO] [stderr] 889 | |                     assert_eq!(n, "bar");
[INFO] [stderr] ...   |
[INFO] [stderr] 894 | |                 panic!("Subexpression expected (baz bar)");
[INFO] [stderr] 895 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 886 |             if let Parameter::Subexpression(ref t) = *h.params.get(0).unwrap() {
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^   ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/template.rs:886:55
[INFO] [stderr]     |
[INFO] [stderr] 886 |             if let &Parameter::Subexpression(ref t) = h.params.get(0).unwrap() {
[INFO] [stderr]     |                                                       ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&h.params[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/template.rs:897:13
[INFO] [stderr]     |
[INFO] [stderr] 897 | /             if let &Parameter::Subexpression(ref t) = h.hash.get("then").unwrap() {
[INFO] [stderr] 898 | |                 assert_eq!(t.name(), "bar".to_owned());
[INFO] [stderr] 899 | |             } else {
[INFO] [stderr] 900 | |                 panic!("Subexpression expected (bar)");
[INFO] [stderr] 901 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 897 |             if let Parameter::Subexpression(ref t) = *h.hash.get("then").unwrap() {
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a BTreeMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/template.rs:897:55
[INFO] [stderr]     |
[INFO] [stderr] 897 |             if let &Parameter::Subexpression(ref t) = h.hash.get("then").unwrap() {
[INFO] [stderr]     |                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&h.hash["then"]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/template.rs:971:30
[INFO] [stderr]     |
[INFO] [stderr] 971 |                             *ht.elements.get(0).unwrap(),
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&ht.elements[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/value.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 | /         match self {
[INFO] [stderr] 21 | |             &ScopedJson::Constant(j) => j,
[INFO] [stderr] 22 | |             &ScopedJson::Derived(ref j) => j,
[INFO] [stderr] 23 | |             &ScopedJson::Context(j) => j,
[INFO] [stderr] 24 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 20 |         match *self {
[INFO] [stderr] 21 |             ScopedJson::Constant(j) => j,
[INFO] [stderr] 22 |             ScopedJson::Derived(ref j) => j,
[INFO] [stderr] 23 |             ScopedJson::Context(j) => j,
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]   --> examples/render.rs:26:10
[INFO] [stderr]    |
[INFO] [stderr] 26 |         .ok_or(RenderError::new("Param 0 is required for format helper."))?;
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| RenderError::new("Param 0 is required for format helper."))`
[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: use of `ok_or` followed by a function call
[INFO] [stderr]   --> examples/render.rs:43:10
[INFO] [stderr]    |
[INFO] [stderr] 43 |           .ok_or(RenderError::new(
[INFO] [stderr]    |  __________^
[INFO] [stderr] 44 | |             "Param 0 with u64 type is required for rank helper.",
[INFO] [stderr] 45 | |         ))? as usize;
[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] 43 |         .ok_or_else(|| RenderError::new(
[INFO] [stderr] 44 |             "Param 0 with u64 type is required for rank helper.",
[INFO] [stderr] 45 |         ))? as usize;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]   --> examples/render.rs:51:10
[INFO] [stderr]    |
[INFO] [stderr] 51 |           .ok_or(RenderError::new(
[INFO] [stderr]    |  __________^
[INFO] [stderr] 52 | |             "Param 1 with array type is required for rank helper",
[INFO] [stderr] 53 | |         ))?;
[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] 51 |         .ok_or_else(|| RenderError::new(
[INFO] [stderr] 52 |             "Param 1 with array type is required for rank helper",
[INFO] [stderr] 53 |         ))?;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> benches/bench.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(test)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `handlebars`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: literal with an empty format string
[INFO] [stderr]   --> examples/render-cli.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |         r#"Usage: ./render-cli template.hbs '{"json": "data"}'"#
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::write_literal)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_literal
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]   --> examples/render_file.rs:29:10
[INFO] [stderr]    |
[INFO] [stderr] 29 |         .ok_or(RenderError::new("Param 0 is required for format helper."))?;
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| RenderError::new("Param 0 is required for format helper."))`
[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: use of `ok_or` followed by a function call
[INFO] [stderr]   --> examples/render_file.rs:46:10
[INFO] [stderr]    |
[INFO] [stderr] 46 |           .ok_or(RenderError::new(
[INFO] [stderr]    |  __________^
[INFO] [stderr] 47 | |             "Param 0 with u64 type is required for rank helper.",
[INFO] [stderr] 48 | |         ))? as usize;
[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] 46 |         .ok_or_else(|| RenderError::new(
[INFO] [stderr] 47 |             "Param 0 with u64 type is required for rank helper.",
[INFO] [stderr] 48 |         ))? as usize;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]   --> examples/render_file.rs:54:10
[INFO] [stderr]    |
[INFO] [stderr] 54 |           .ok_or(RenderError::new(
[INFO] [stderr]    |  __________^
[INFO] [stderr] 55 | |             "Param 1 with array type is required for rank helper",
[INFO] [stderr] 56 | |         ))?;
[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] 54 |         .ok_or_else(|| RenderError::new(
[INFO] [stderr] 55 |             "Param 1 with array type is required for rank helper",
[INFO] [stderr] 56 |         ))?;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> examples/render-cli.rs:25:36
[INFO] [stderr]    |
[INFO] [stderr] 25 |     let text = if text.starts_with("@") {
[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] error: build failed
[INFO] running `"docker" "inspect" "76744da39f224eb7138a417246ddbd08a0ab69afd22541747a4861d6a0f5f8c1"`
[INFO] running `"docker" "rm" "-f" "76744da39f224eb7138a417246ddbd08a0ab69afd22541747a4861d6a0f5f8c1"`
[INFO] [stdout] 76744da39f224eb7138a417246ddbd08a0ab69afd22541747a4861d6a0f5f8c1