[INFO] crate cargo-release 0.10.5 is already in cache
[INFO] extracting crate cargo-release 0.10.5 into work/ex/clippy-test-run/sources/stable/reg/cargo-release/0.10.5
[INFO] extracting crate cargo-release 0.10.5 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/cargo-release/0.10.5
[INFO] validating manifest of cargo-release-0.10.5 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 cargo-release-0.10.5 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 cargo-release-0.10.5
[INFO] finished frobbing cargo-release-0.10.5
[INFO] frobbed toml for cargo-release-0.10.5 written to work/ex/clippy-test-run/sources/stable/reg/cargo-release/0.10.5/Cargo.toml
[INFO] started frobbing cargo-release-0.10.5
[INFO] finished frobbing cargo-release-0.10.5
[INFO] frobbed toml for cargo-release-0.10.5 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/cargo-release/0.10.5/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 cargo-release-0.10.5 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-4/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/cargo-release/0.10.5:/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] f16eb2723b6992c250c343fab15c9aef0e3081b1beb973e2a56c425da5d57b6f
[INFO] running `"docker" "start" "-a" "f16eb2723b6992c250c343fab15c9aef0e3081b1beb973e2a56c425da5d57b6f"`
[INFO] [stderr]     Checking structopt v0.2.14
[INFO] [stderr]     Checking cargo-release v0.10.5 (/opt/crater/workdir)
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]    --> src/main.rs:174:9
[INFO] [stderr]     |
[INFO] [stderr] 174 | /         if !dry_run {
[INFO] [stderr] 175 | |             if !no_confirm {
[INFO] [stderr] 176 | |                 if !shell::confirm(&format!("Release version {} ?", new_version_string)) {
[INFO] [stderr] 177 | |                     return Ok(0);
[INFO] [stderr] 178 | |                 }
[INFO] [stderr] 179 | |             }
[INFO] [stderr] 180 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 174 |         if !dry_run && !no_confirm {
[INFO] [stderr] 175 |     if !shell::confirm(&format!("Release version {} ?", new_version_string)) {
[INFO] [stderr] 176 |         return Ok(0);
[INFO] [stderr] 177 |     }
[INFO] [stderr] 178 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]    --> src/main.rs:175:13
[INFO] [stderr]     |
[INFO] [stderr] 175 | /             if !no_confirm {
[INFO] [stderr] 176 | |                 if !shell::confirm(&format!("Release version {} ?", new_version_string)) {
[INFO] [stderr] 177 | |                     return Ok(0);
[INFO] [stderr] 178 | |                 }
[INFO] [stderr] 179 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 175 |             if !no_confirm && !shell::confirm(&format!("Release version {} ?", new_version_string)) {
[INFO] [stderr] 176 |     return Ok(0);
[INFO] [stderr] 177 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]    --> src/main.rs:174:9
[INFO] [stderr]     |
[INFO] [stderr] 174 | /         if !dry_run {
[INFO] [stderr] 175 | |             if !no_confirm {
[INFO] [stderr] 176 | |                 if !shell::confirm(&format!("Release version {} ?", new_version_string)) {
[INFO] [stderr] 177 | |                     return Ok(0);
[INFO] [stderr] 178 | |                 }
[INFO] [stderr] 179 | |             }
[INFO] [stderr] 180 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 174 |         if !dry_run && !no_confirm {
[INFO] [stderr] 175 |     if !shell::confirm(&format!("Release version {} ?", new_version_string)) {
[INFO] [stderr] 176 |         return Ok(0);
[INFO] [stderr] 177 |     }
[INFO] [stderr] 178 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]    --> src/main.rs:175:13
[INFO] [stderr]     |
[INFO] [stderr] 175 | /             if !no_confirm {
[INFO] [stderr] 176 | |                 if !shell::confirm(&format!("Release version {} ?", new_version_string)) {
[INFO] [stderr] 177 | |                     return Ok(0);
[INFO] [stderr] 178 | |                 }
[INFO] [stderr] 179 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 175 |             if !no_confirm && !shell::confirm(&format!("Release version {} ?", new_version_string)) {
[INFO] [stderr] 176 |     return Ok(0);
[INFO] [stderr] 177 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/cmd.rs:39:12
[INFO] [stderr]    |
[INFO] [stderr] 39 |         if arg.len() > 0 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!arg.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: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]   --> src/config.rs:52:1
[INFO] [stderr]    |
[INFO] [stderr] 52 | / fn get_release_config_table_from_cargo<'a>(cargo_config: &'a Value) -> Option<&'a Table> {
[INFO] [stderr] 53 | |     cargo_config
[INFO] [stderr] 54 | |         .get("package")
[INFO] [stderr] 55 | |         .and_then(|f| f.as_table())
[INFO] [stderr] ...  |
[INFO] [stderr] 59 | |         .and_then(|f| f.as_table())
[INFO] [stderr] 60 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_lifetimes)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]   --> src/config.rs:71:22
[INFO] [stderr]    |
[INFO] [stderr] 71 |             .map(|v| v.as_table().map(|t| t.clone()))
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: Consider calling the dedicated `cloned` method: `v.as_table().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] error: this comparison involving the minimum or maximum element for this type contains a case that is always true or always false
[INFO] [stderr]    --> src/config.rs:163:16
[INFO] [stderr]     |
[INFO] [stderr] 163 |             if b <= 0 {
[INFO] [stderr]     |                ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::absurd_extreme_comparisons)] on by default
[INFO] [stderr]     = help: because 0 is the minimum value for this type, the case where the two sides are not equal never occurs, consider using b == 0 instead
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#absurd_extreme_comparisons
[INFO] [stderr] 
[INFO] [stderr] error: this comparison involving the minimum or maximum element for this type contains a case that is always true or always false
[INFO] [stderr]    --> src/config.rs:204:16
[INFO] [stderr]     |
[INFO] [stderr] 204 |             if b <= 0 {
[INFO] [stderr]     |                ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: because 0 is the minimum value for this type, the case where the two sides are not equal never occurs, consider using b == 0 instead
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#absurd_extreme_comparisons
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]    --> src/config.rs:232:37
[INFO] [stderr]     |
[INFO] [stderr] 232 |     Version::parse(version).map_err(|e| FatalError::from(e))
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `FatalError::from`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_closure)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/replace.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 | /     if let &Value::Array(ref v) = replace_config {
[INFO] [stderr] 31 | |         for tbl in v {
[INFO] [stderr] 32 | |             if let &Value::Table(ref t) = tbl {
[INFO] [stderr] 33 | |                 let file = t
[INFO] [stderr] ...  |
[INFO] [stderr] 60 | |         }
[INFO] [stderr] 61 | |     }
[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] 30 |     if let Value::Array(ref v) = *replace_config {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^   ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/replace.rs:32:13
[INFO] [stderr]    |
[INFO] [stderr] 32 | /             if let &Value::Table(ref t) = tbl {
[INFO] [stderr] 33 | |                 let file = t
[INFO] [stderr] 34 | |                     .get("file")
[INFO] [stderr] 35 | |                     .and_then(|v| v.as_str())
[INFO] [stderr] ...  |
[INFO] [stderr] 58 | |                 }
[INFO] [stderr] 59 | |             }
[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] 32 |             if let Value::Table(ref t) = *tbl {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^   ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/version.rs:77:12
[INFO] [stderr]    |
[INFO] [stderr] 77 |         if self.pre.len() > 0 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!self.pre.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]   --> src/main.rs:44:10
[INFO] [stderr]    |
[INFO] [stderr] 44 |         .unwrap_or(default_value.to_owned())
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| default_value.to_owned())`
[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/main.rs:123:17
[INFO] [stderr]     |
[INFO] [stderr] 123 |               |h| match h {
[INFO] [stderr]     |  _________________^
[INFO] [stderr] 124 | |                 &Value::String(ref s) => Some(vec![s.as_ref()]),
[INFO] [stderr] 125 | |                 &Value::Array(ref a) => Some(
[INFO] [stderr] 126 | |                     a.iter()
[INFO] [stderr] ...   |
[INFO] [stderr] 132 | |                 _ => None,
[INFO] [stderr] 133 | |             },
[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] 123 |             |h| match *h {
[INFO] [stderr] 124 |                 Value::String(ref s) => Some(vec![s.as_ref()]),
[INFO] [stderr] 125 |                 Value::Array(ref a) => Some(
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `cargo-release`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/cmd.rs:39:12
[INFO] [stderr]    |
[INFO] [stderr] 39 |         if arg.len() > 0 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!arg.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: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]   --> src/config.rs:52:1
[INFO] [stderr]    |
[INFO] [stderr] 52 | / fn get_release_config_table_from_cargo<'a>(cargo_config: &'a Value) -> Option<&'a Table> {
[INFO] [stderr] 53 | |     cargo_config
[INFO] [stderr] 54 | |         .get("package")
[INFO] [stderr] 55 | |         .and_then(|f| f.as_table())
[INFO] [stderr] ...  |
[INFO] [stderr] 59 | |         .and_then(|f| f.as_table())
[INFO] [stderr] 60 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_lifetimes)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]   --> src/config.rs:71:22
[INFO] [stderr]    |
[INFO] [stderr] 71 |             .map(|v| v.as_table().map(|t| t.clone()))
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: Consider calling the dedicated `cloned` method: `v.as_table().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] error: this comparison involving the minimum or maximum element for this type contains a case that is always true or always false
[INFO] [stderr]    --> src/config.rs:163:16
[INFO] [stderr]     |
[INFO] [stderr] 163 |             if b <= 0 {
[INFO] [stderr]     |                ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::absurd_extreme_comparisons)] on by default
[INFO] [stderr]     = help: because 0 is the minimum value for this type, the case where the two sides are not equal never occurs, consider using b == 0 instead
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#absurd_extreme_comparisons
[INFO] [stderr] 
[INFO] [stderr] error: this comparison involving the minimum or maximum element for this type contains a case that is always true or always false
[INFO] [stderr]    --> src/config.rs:204:16
[INFO] [stderr]     |
[INFO] [stderr] 204 |             if b <= 0 {
[INFO] [stderr]     |                ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: because 0 is the minimum value for this type, the case where the two sides are not equal never occurs, consider using b == 0 instead
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#absurd_extreme_comparisons
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]    --> src/config.rs:232:37
[INFO] [stderr]     |
[INFO] [stderr] 232 |     Version::parse(version).map_err(|e| FatalError::from(e))
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `FatalError::from`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_closure)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/replace.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 | /     if let &Value::Array(ref v) = replace_config {
[INFO] [stderr] 31 | |         for tbl in v {
[INFO] [stderr] 32 | |             if let &Value::Table(ref t) = tbl {
[INFO] [stderr] 33 | |                 let file = t
[INFO] [stderr] ...  |
[INFO] [stderr] 60 | |         }
[INFO] [stderr] 61 | |     }
[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] 30 |     if let Value::Array(ref v) = *replace_config {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^   ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/replace.rs:32:13
[INFO] [stderr]    |
[INFO] [stderr] 32 | /             if let &Value::Table(ref t) = tbl {
[INFO] [stderr] 33 | |                 let file = t
[INFO] [stderr] 34 | |                     .get("file")
[INFO] [stderr] 35 | |                     .and_then(|v| v.as_str())
[INFO] [stderr] ...  |
[INFO] [stderr] 58 | |                 }
[INFO] [stderr] 59 | |             }
[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] 32 |             if let Value::Table(ref t) = *tbl {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^   ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/version.rs:77:12
[INFO] [stderr]    |
[INFO] [stderr] 77 |         if self.pre.len() > 0 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!self.pre.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]   --> src/main.rs:44:10
[INFO] [stderr]    |
[INFO] [stderr] 44 |         .unwrap_or(default_value.to_owned())
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| default_value.to_owned())`
[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/main.rs:123:17
[INFO] [stderr]     |
[INFO] [stderr] 123 |               |h| match h {
[INFO] [stderr]     |  _________________^
[INFO] [stderr] 124 | |                 &Value::String(ref s) => Some(vec![s.as_ref()]),
[INFO] [stderr] 125 | |                 &Value::Array(ref a) => Some(
[INFO] [stderr] 126 | |                     a.iter()
[INFO] [stderr] ...   |
[INFO] [stderr] 132 | |                 _ => None,
[INFO] [stderr] 133 | |             },
[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] 123 |             |h| match *h {
[INFO] [stderr] 124 |                 Value::String(ref s) => Some(vec![s.as_ref()]),
[INFO] [stderr] 125 |                 Value::Array(ref a) => Some(
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `cargo-release`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "f16eb2723b6992c250c343fab15c9aef0e3081b1beb973e2a56c425da5d57b6f"`
[INFO] running `"docker" "rm" "-f" "f16eb2723b6992c250c343fab15c9aef0e3081b1beb973e2a56c425da5d57b6f"`
[INFO] [stdout] f16eb2723b6992c250c343fab15c9aef0e3081b1beb973e2a56c425da5d57b6f