[INFO] crate serde_transit 0.1.0 is already in cache
[INFO] extracting crate serde_transit 0.1.0 into work/ex/clippy-test-run/sources/stable/reg/serde_transit/0.1.0
[INFO] extracting crate serde_transit 0.1.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/serde_transit/0.1.0
[INFO] validating manifest of serde_transit-0.1.0 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 serde_transit-0.1.0 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 serde_transit-0.1.0
[INFO] finished frobbing serde_transit-0.1.0
[INFO] frobbed toml for serde_transit-0.1.0 written to work/ex/clippy-test-run/sources/stable/reg/serde_transit/0.1.0/Cargo.toml
[INFO] started frobbing serde_transit-0.1.0
[INFO] finished frobbing serde_transit-0.1.0
[INFO] frobbed toml for serde_transit-0.1.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/serde_transit/0.1.0/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 serde_transit-0.1.0 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-0/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/serde_transit/0.1.0:/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] eae24f0ba50481fb9d624b10fd3911e1f33bde5e7fcfb3e8ff6e0e5d8e0a209d
[INFO] running `"docker" "start" "-a" "eae24f0ba50481fb9d624b10fd3911e1f33bde5e7fcfb3e8ff6e0e5d8e0a209d"`
[INFO] [stderr]     Checking serde_transit v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/de.rs:20:24
[INFO] [stderr]    |
[INFO] [stderr] 20 |         Deserializer { input: input }
[INFO] [stderr]    |                        ^^^^^^^^^^^^ help: replace it with: `input`
[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/de.rs:459:13
[INFO] [stderr]     |
[INFO] [stderr] 459 |             de: de,
[INFO] [stderr]     |             ^^^^^^ help: replace it with: `de`
[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/de.rs:528:16
[INFO] [stderr]     |
[INFO] [stderr] 528 |         Enum { de: de }
[INFO] [stderr]     |                ^^^^^^ help: replace it with: `de`
[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/de.rs:20:24
[INFO] [stderr]    |
[INFO] [stderr] 20 |         Deserializer { input: input }
[INFO] [stderr]    |                        ^^^^^^^^^^^^ help: replace it with: `input`
[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/de.rs:459:13
[INFO] [stderr]     |
[INFO] [stderr] 459 |             de: de,
[INFO] [stderr]     |             ^^^^^^ help: replace it with: `de`
[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/de.rs:528:16
[INFO] [stderr]     |
[INFO] [stderr] 528 |         Enum { de: de }
[INFO] [stderr]     |                ^^^^^^ help: replace it with: `de`
[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: private trait `ser::Formatter` in public interface (error E0445)
[INFO] [stderr]    --> src/ser.rs:57:1
[INFO] [stderr]     |
[INFO] [stderr] 57  | / impl<'a, W, F> ser::Serializer for &'a mut Serializer<W, F>
[INFO] [stderr] 58  | |     where W: io::Write,
[INFO] [stderr] 59  | |           F: Formatter
[INFO] [stderr] 60  | | {
[INFO] [stderr] ...   |
[INFO] [stderr] 293 | |     }
[INFO] [stderr] 294 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(private_in_public)] on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr] warning: private trait `ser::Formatter` in public interface (error E0445)
[INFO] [stderr]    --> src/ser.rs:424:1
[INFO] [stderr]     |
[INFO] [stderr] 424 | / impl<'a, W, F> ser::SerializeStruct for Compound<'a, W, F>
[INFO] [stderr] 425 | |     where W: io::Write,
[INFO] [stderr] 426 | |           F: Formatter
[INFO] [stderr] 427 | | {
[INFO] [stderr] ...   |
[INFO] [stderr] 439 | |     }
[INFO] [stderr] 440 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/error.rs:79:13
[INFO] [stderr]    |
[INFO] [stderr] 79 |     fn from(e: json::Error) -> Error {
[INFO] [stderr]    |             ^ help: consider using `_e` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/ser.rs:234:28
[INFO] [stderr]     |
[INFO] [stderr] 234 |     fn serialize_seq(self, len: Option<usize>) -> Result<Self::SerializeSeq> {
[INFO] [stderr]     |                            ^^^ help: consider using `_len` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/ser.rs:243:30
[INFO] [stderr]     |
[INFO] [stderr] 243 |     fn serialize_tuple(self, len: usize) -> Result<Self::SerializeTuple> {
[INFO] [stderr]     |                              ^^^ help: consider using `_len` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/ser.rs:250:31
[INFO] [stderr]     |
[INFO] [stderr] 250 |                               name: &'static str,
[INFO] [stderr]     |                               ^^^^ help: consider using `_name` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/ser.rs:251:31
[INFO] [stderr]     |
[INFO] [stderr] 251 |                               len: usize)
[INFO] [stderr]     |                               ^^^ help: consider using `_len` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/ser.rs:260:32
[INFO] [stderr]     |
[INFO] [stderr] 260 |                                name: &'static str,
[INFO] [stderr]     |                                ^^^^ help: consider using `_name` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `variant_index`
[INFO] [stderr]    --> src/ser.rs:261:32
[INFO] [stderr]     |
[INFO] [stderr] 261 |                                variant_index: u32,
[INFO] [stderr]     |                                ^^^^^^^^^^^^^ help: consider using `_variant_index` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `variant`
[INFO] [stderr]    --> src/ser.rs:262:32
[INFO] [stderr]     |
[INFO] [stderr] 262 |                                variant: &'static str,
[INFO] [stderr]     |                                ^^^^^^^ help: consider using `_variant` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/ser.rs:263:32
[INFO] [stderr]     |
[INFO] [stderr] 263 |                                len: usize)
[INFO] [stderr]     |                                ^^^ help: consider using `_len` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/ser.rs:269:28
[INFO] [stderr]     |
[INFO] [stderr] 269 |     fn serialize_map(self, len: Option<usize>) -> Result<Self::SerializeMap> {
[INFO] [stderr]     |                            ^^^ help: consider using `_len` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/ser.rs:287:33
[INFO] [stderr]     |
[INFO] [stderr] 287 |                                 name: &'static str,
[INFO] [stderr]     |                                 ^^^^ help: consider using `_name` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `variant_index`
[INFO] [stderr]    --> src/ser.rs:288:33
[INFO] [stderr]     |
[INFO] [stderr] 288 |                                 variant_index: u32,
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^ help: consider using `_variant_index` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `variant`
[INFO] [stderr]    --> src/ser.rs:289:33
[INFO] [stderr]     |
[INFO] [stderr] 289 |                                 variant: &'static str,
[INFO] [stderr]     |                                 ^^^^^^^ help: consider using `_variant` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/ser.rs:290:33
[INFO] [stderr]     |
[INFO] [stderr] 290 |                                 len: usize)
[INFO] [stderr]     |                                 ^^^ help: consider using `_len` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/ser.rs:314:40
[INFO] [stderr]     |
[INFO] [stderr] 314 |     fn serialize_element<T>(&mut self, value: &T) -> Result<()>
[INFO] [stderr]     |                                        ^^^^^ help: consider using `_value` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/ser.rs:331:40
[INFO] [stderr]     |
[INFO] [stderr] 331 |     fn serialize_element<T>(&mut self, value: &T) -> Result<()>
[INFO] [stderr]     |                                        ^^^^^ help: consider using `_value` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/ser.rs:347:38
[INFO] [stderr]     |
[INFO] [stderr] 347 |     fn serialize_field<T>(&mut self, value: &T) -> Result<()>
[INFO] [stderr]     |                                      ^^^^^ help: consider using `_value` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/ser.rs:371:38
[INFO] [stderr]     |
[INFO] [stderr] 371 |     fn serialize_field<T>(&mut self, value: &T) -> Result<()>
[INFO] [stderr]     |                                      ^^^^^ help: consider using `_value` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]    --> src/ser.rs:402:36
[INFO] [stderr]     |
[INFO] [stderr] 402 |     fn serialize_key<T>(&mut self, key: &T) -> Result<()>
[INFO] [stderr]     |                                    ^^^ help: consider using `_key` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/ser.rs:411:38
[INFO] [stderr]     |
[INFO] [stderr] 411 |     fn serialize_value<T>(&mut self, value: &T) -> Result<()>
[INFO] [stderr]     |                                      ^^^^^ help: consider using `_value` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]    --> src/ser.rs:448:38
[INFO] [stderr]     |
[INFO] [stderr] 448 |     fn serialize_field<T>(&mut self, key: &'static str, value: &T) -> Result<()>
[INFO] [stderr]     |                                      ^^^ help: consider using `_key` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/ser.rs:448:57
[INFO] [stderr]     |
[INFO] [stderr] 448 |     fn serialize_field<T>(&mut self, key: &'static str, value: &T) -> Result<()>
[INFO] [stderr]     |                                                         ^^^^^ help: consider using `_value` instead
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `to_pretty_writer`
[INFO] [stderr]   --> src/ser.rs:48:1
[INFO] [stderr]    |
[INFO] [stderr] 48 | / pub fn to_pretty_writer<W, T: ?Sized>(writer: W, value: &T) -> Result<()>
[INFO] [stderr] 49 | |     where W: io::Write,
[INFO] [stderr] 50 | |           T: ser::Serialize
[INFO] [stderr] 51 | | {
[INFO] [stderr] ...  |
[INFO] [stderr] 54 | |     Ok(())
[INFO] [stderr] 55 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: defining a method called `from_str` on this type; consider implementing the `std::str::FromStr` trait or choosing a less ambiguous name
[INFO] [stderr]   --> src/de.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | /     pub fn from_str(input: &'de str) -> Self {
[INFO] [stderr] 20 | |         Deserializer { input: input }
[INFO] [stderr] 21 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::should_implement_trait)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#should_implement_trait
[INFO] [stderr] 
[INFO] [stderr] warning: private trait `ser::Formatter` in public interface (error E0445)
[INFO] [stderr]    --> src/ser.rs:57:1
[INFO] [stderr]     |
[INFO] [stderr] 57  | / impl<'a, W, F> ser::Serializer for &'a mut Serializer<W, F>
[INFO] [stderr] 58  | |     where W: io::Write,
[INFO] [stderr] 59  | |           F: Formatter
[INFO] [stderr] 60  | | {
[INFO] [stderr] ...   |
[INFO] [stderr] 293 | |     }
[INFO] [stderr] 294 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(private_in_public)] on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr] warning: private trait `ser::Formatter` in public interface (error E0445)
[INFO] [stderr]    --> src/ser.rs:424:1
[INFO] [stderr]     |
[INFO] [stderr] 424 | / impl<'a, W, F> ser::SerializeStruct for Compound<'a, W, F>
[INFO] [stderr] 425 | |     where W: io::Write,
[INFO] [stderr] 426 | |           F: Formatter
[INFO] [stderr] 427 | | {
[INFO] [stderr] ...   |
[INFO] [stderr] 439 | |     }
[INFO] [stderr] 440 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/error.rs:79:13
[INFO] [stderr]    |
[INFO] [stderr] 79 |     fn from(e: json::Error) -> Error {
[INFO] [stderr]    |             ^ help: consider using `_e` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/ser.rs:234:28
[INFO] [stderr]     |
[INFO] [stderr] 234 |     fn serialize_seq(self, len: Option<usize>) -> Result<Self::SerializeSeq> {
[INFO] [stderr]     |                            ^^^ help: consider using `_len` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/ser.rs:243:30
[INFO] [stderr]     |
[INFO] [stderr] 243 |     fn serialize_tuple(self, len: usize) -> Result<Self::SerializeTuple> {
[INFO] [stderr]     |                              ^^^ help: consider using `_len` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/ser.rs:250:31
[INFO] [stderr]     |
[INFO] [stderr] 250 |                               name: &'static str,
[INFO] [stderr]     |                               ^^^^ help: consider using `_name` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/ser.rs:251:31
[INFO] [stderr]     |
[INFO] [stderr] 251 |                               len: usize)
[INFO] [stderr]     |                               ^^^ help: consider using `_len` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/ser.rs:260:32
[INFO] [stderr]     |
[INFO] [stderr] 260 |                                name: &'static str,
[INFO] [stderr]     |                                ^^^^ help: consider using `_name` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `variant_index`
[INFO] [stderr]    --> src/ser.rs:261:32
[INFO] [stderr]     |
[INFO] [stderr] 261 |                                variant_index: u32,
[INFO] [stderr]     |                                ^^^^^^^^^^^^^ help: consider using `_variant_index` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `variant`
[INFO] [stderr]    --> src/ser.rs:262:32
[INFO] [stderr]     |
[INFO] [stderr] 262 |                                variant: &'static str,
[INFO] [stderr]     |                                ^^^^^^^ help: consider using `_variant` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/ser.rs:263:32
[INFO] [stderr]     |
[INFO] [stderr] 263 |                                len: usize)
[INFO] [stderr]     |                                ^^^ help: consider using `_len` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/ser.rs:269:28
[INFO] [stderr]     |
[INFO] [stderr] 269 |     fn serialize_map(self, len: Option<usize>) -> Result<Self::SerializeMap> {
[INFO] [stderr]     |                            ^^^ help: consider using `_len` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/ser.rs:287:33
[INFO] [stderr]     |
[INFO] [stderr] 287 |                                 name: &'static str,
[INFO] [stderr]     |                                 ^^^^ help: consider using `_name` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `variant_index`
[INFO] [stderr]    --> src/ser.rs:288:33
[INFO] [stderr]     |
[INFO] [stderr] 288 |                                 variant_index: u32,
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^ help: consider using `_variant_index` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `variant`
[INFO] [stderr]    --> src/ser.rs:289:33
[INFO] [stderr]     |
[INFO] [stderr] 289 |                                 variant: &'static str,
[INFO] [stderr]     |                                 ^^^^^^^ help: consider using `_variant` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/ser.rs:290:33
[INFO] [stderr]     |
[INFO] [stderr] 290 |                                 len: usize)
[INFO] [stderr]     |                                 ^^^ help: consider using `_len` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/ser.rs:314:40
[INFO] [stderr]     |
[INFO] [stderr] 314 |     fn serialize_element<T>(&mut self, value: &T) -> Result<()>
[INFO] [stderr]     |                                        ^^^^^ help: consider using `_value` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/ser.rs:331:40
[INFO] [stderr]     |
[INFO] [stderr] 331 |     fn serialize_element<T>(&mut self, value: &T) -> Result<()>
[INFO] [stderr]     |                                        ^^^^^ help: consider using `_value` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/ser.rs:347:38
[INFO] [stderr]     |
[INFO] [stderr] 347 |     fn serialize_field<T>(&mut self, value: &T) -> Result<()>
[INFO] [stderr]     |                                      ^^^^^ help: consider using `_value` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/ser.rs:371:38
[INFO] [stderr]     |
[INFO] [stderr] 371 |     fn serialize_field<T>(&mut self, value: &T) -> Result<()>
[INFO] [stderr]     |                                      ^^^^^ help: consider using `_value` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]    --> src/ser.rs:402:36
[INFO] [stderr]     |
[INFO] [stderr] 402 |     fn serialize_key<T>(&mut self, key: &T) -> Result<()>
[INFO] [stderr]     |                                    ^^^ help: consider using `_key` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/ser.rs:411:38
[INFO] [stderr]     |
[INFO] [stderr] 411 |     fn serialize_value<T>(&mut self, value: &T) -> Result<()>
[INFO] [stderr]     |                                      ^^^^^ help: consider using `_value` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]    --> src/ser.rs:448:38
[INFO] [stderr]     |
[INFO] [stderr] 448 |     fn serialize_field<T>(&mut self, key: &'static str, value: &T) -> Result<()>
[INFO] [stderr]     |                                      ^^^ help: consider using `_key` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/ser.rs:448:57
[INFO] [stderr]     |
[INFO] [stderr] 448 |     fn serialize_field<T>(&mut self, key: &'static str, value: &T) -> Result<()>
[INFO] [stderr]     |                                                         ^^^^^ help: consider using `_value` instead
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `to_pretty_writer`
[INFO] [stderr]   --> src/ser.rs:48:1
[INFO] [stderr]    |
[INFO] [stderr] 48 | / pub fn to_pretty_writer<W, T: ?Sized>(writer: W, value: &T) -> Result<()>
[INFO] [stderr] 49 | |     where W: io::Write,
[INFO] [stderr] 50 | |           T: ser::Serialize
[INFO] [stderr] 51 | | {
[INFO] [stderr] ...  |
[INFO] [stderr] 54 | |     Ok(())
[INFO] [stderr] 55 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/ser.rs:470:5
[INFO] [stderr]     |
[INFO] [stderr] 470 |     to_writer(&mut writer, &test);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: defining a method called `from_str` on this type; consider implementing the `std::str::FromStr` trait or choosing a less ambiguous name
[INFO] [stderr]   --> src/de.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | /     pub fn from_str(input: &'de str) -> Self {
[INFO] [stderr] 20 | |         Deserializer { input: input }
[INFO] [stderr] 21 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::should_implement_trait)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#should_implement_trait
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.54s
[INFO] running `"docker" "inspect" "eae24f0ba50481fb9d624b10fd3911e1f33bde5e7fcfb3e8ff6e0e5d8e0a209d"`
[INFO] running `"docker" "rm" "-f" "eae24f0ba50481fb9d624b10fd3911e1f33bde5e7fcfb3e8ff6e0e5d8e0a209d"`
[INFO] [stdout] eae24f0ba50481fb9d624b10fd3911e1f33bde5e7fcfb3e8ff6e0e5d8e0a209d