[INFO] fetching crate jvm-serializable 0.0.3...
[INFO] testing jvm-serializable-0.0.3 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate jvm-serializable 0.0.3 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate jvm-serializable 0.0.3 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate jvm-serializable 0.0.3
[INFO] finished tweaking crates.io crate jvm-serializable 0.0.3
[INFO] tweaked toml for crates.io crate jvm-serializable 0.0.3 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded jvm-macro v0.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] afa8bad4699d32acbfa31d15b3589640b5a9f4ce892fec9f03ae14f5269bd538
[INFO] running `Command { std: "docker" "start" "-a" "afa8bad4699d32acbfa31d15b3589640b5a9f4ce892fec9f03ae14f5269bd538", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "afa8bad4699d32acbfa31d15b3589640b5a9f4ce892fec9f03ae14f5269bd538", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afa8bad4699d32acbfa31d15b3589640b5a9f4ce892fec9f03ae14f5269bd538", kill_on_drop: false }`
[INFO] [stdout] afa8bad4699d32acbfa31d15b3589640b5a9f4ce892fec9f03ae14f5269bd538
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 368cc8e2057641edf58e4a3ed4566bcfaaed2c91062c14b051470d07655e3f2a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "368cc8e2057641edf58e4a3ed4566bcfaaed2c91062c14b051470d07655e3f2a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling serde_derive_internals v0.25.0
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling jvm-macro v0.0.1
[INFO] [stderr]    Compiling jvm-serializable v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `Mutex`
[INFO] [stdout]   --> src/lib.rs:19:25
[INFO] [stdout]    |
[INFO] [stdout] 19 |         use std::sync::{Mutex, Arc};
[INFO] [stdout]    |                         ^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Instant`
[INFO] [stdout]   --> src/lib.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |         use std::time::Instant;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AtomicBool`, `Ordering`
[INFO] [stdout]   --> src/lib.rs:24:33
[INFO] [stdout]    |
[INFO] [stdout] 24 |         use std::sync::atomic::{AtomicBool, Ordering};
[INFO] [stdout]    |                                 ^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:130:56
[INFO] [stdout]     |
[INFO] [stdout] 130 |             fn serialize_element<T: ?Sized>(&mut self, value: &T) -> Result<(), Self::Error> where
[INFO] [stdout]     |                                                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:144:56
[INFO] [stdout]     |
[INFO] [stdout] 144 |             fn serialize_element<T: ?Sized>(&mut self, value: &T) -> Result<(), Self::Error> where
[INFO] [stdout]     |                                                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:158:54
[INFO] [stdout]     |
[INFO] [stdout] 158 |             fn serialize_field<T: ?Sized>(&mut self, value: &T) -> Result<(), Self::Error> where
[INFO] [stdout]     |                                                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:172:54
[INFO] [stdout]     |
[INFO] [stdout] 172 |             fn serialize_field<T: ?Sized>(&mut self, value: &T) -> Result<(), Self::Error> where
[INFO] [stdout]     |                                                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/lib.rs:186:52
[INFO] [stdout]     |
[INFO] [stdout] 186 |             fn serialize_key<T: ?Sized>(&mut self, key: &T) -> Result<(), Self::Error> where
[INFO] [stdout]     |                                                    ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:191:54
[INFO] [stdout]     |
[INFO] [stdout] 191 |             fn serialize_value<T: ?Sized>(&mut self, value: &T) -> Result<(), Self::Error> where
[INFO] [stdout]     |                                                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/lib.rs:284:54
[INFO] [stdout]     |
[INFO] [stdout] 284 |             fn serialize_field<T: ?Sized>(&mut self, key: &'static str, value: &T) -> Result<(), Self::Error> where
[INFO] [stdout]     |                                                      ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:284:73
[INFO] [stdout]     |
[INFO] [stdout] 284 |             fn serialize_field<T: ?Sized>(&mut self, key: &'static str, value: &T) -> Result<(), Self::Error> where
[INFO] [stdout]     |                                                                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/lib.rs:345:21
[INFO] [stdout]     |
[INFO] [stdout] 345 |                 for i in 0..num_fileds {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]    --> src/lib.rs:386:35
[INFO] [stdout]     |
[INFO] [stdout] 386 |                 for (name, type_, idx) in fields {
[INFO] [stdout]     |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:569:48
[INFO] [stdout]     |
[INFO] [stdout] 569 |             fn serialize_some<T: ?Sized>(self, value: &T) -> Result<Self::Ok, Self::Error> where
[INFO] [stdout]     |                                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/lib.rs:580:44
[INFO] [stdout]     |
[INFO] [stdout] 580 |             fn serialize_unit_struct(self, name: &'static str) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout]     |                                            ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/lib.rs:585:45
[INFO] [stdout]     |
[INFO] [stdout] 585 | ...   fn serialize_unit_variant(self, name: &'static str, variant_index: u32, variant: &'static str) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout]     |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variant_index`
[INFO] [stdout]    --> src/lib.rs:585:65
[INFO] [stdout]     |
[INFO] [stdout] 585 | ..., name: &'static str, variant_index: u32, variant: &'static str) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variant`
[INFO] [stdout]    --> src/lib.rs:585:85
[INFO] [stdout]     |
[INFO] [stdout] 585 | ...ic str, variant_index: u32, variant: &'static str) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout]     |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/lib.rs:590:58
[INFO] [stdout]     |
[INFO] [stdout] 590 |             fn serialize_newtype_struct<T: ?Sized>(self, name: &'static str, value: &T) -> Result<Self::Ok, Self::Error> where
[INFO] [stdout]     |                                                          ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:590:78
[INFO] [stdout]     |
[INFO] [stdout] 590 |             fn serialize_newtype_struct<T: ?Sized>(self, name: &'static str, value: &T) -> Result<Self::Ok, Self::Error> where
[INFO] [stdout]     |                                                                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/lib.rs:596:59
[INFO] [stdout]     |
[INFO] [stdout] 596 | ...   fn serialize_newtype_variant<T: ?Sized>(self, name: &'static str, variant_index: u32, variant: &'static str, value: &T) -> Result<S...
[INFO] [stdout]     |                                                     ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variant_index`
[INFO] [stdout]    --> src/lib.rs:596:79
[INFO] [stdout]     |
[INFO] [stdout] 596 | ..., name: &'static str, variant_index: u32, variant: &'static str, value: &T) -> Result<Self::Ok, Self::Error> where
[INFO] [stdout]     |                          ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variant`
[INFO] [stdout]    --> src/lib.rs:596:99
[INFO] [stdout]     |
[INFO] [stdout] 596 | ...ic str, variant_index: u32, variant: &'static str, value: &T) -> Result<Self::Ok, Self::Error> where
[INFO] [stdout]     |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:596:122
[INFO] [stdout]     |
[INFO] [stdout] 596 | ...: u32, variant: &'static str, value: &T) -> Result<Self::Ok, Self::Error> where
[INFO] [stdout]     |                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/lib.rs:602:36
[INFO] [stdout]     |
[INFO] [stdout] 602 |             fn serialize_seq(self, len: Option<usize>) -> Result<Self::SerializeSeq, Self::Error> {
[INFO] [stdout]     |                                    ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/lib.rs:607:38
[INFO] [stdout]     |
[INFO] [stdout] 607 |             fn serialize_tuple(self, len: usize) -> Result<Self::SerializeTuple, Self::Error> {
[INFO] [stdout]     |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/lib.rs:612:45
[INFO] [stdout]     |
[INFO] [stdout] 612 |             fn serialize_tuple_struct(self, name: &'static str, len: usize) -> Result<Self::SerializeTupleStruct, Self::Error> {
[INFO] [stdout]     |                                             ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/lib.rs:612:65
[INFO] [stdout]     |
[INFO] [stdout] 612 |             fn serialize_tuple_struct(self, name: &'static str, len: usize) -> Result<Self::SerializeTupleStruct, Self::Error> {
[INFO] [stdout]     |                                                                 ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/lib.rs:617:46
[INFO] [stdout]     |
[INFO] [stdout] 617 | ...   fn serialize_tuple_variant(self, name: &'static str, variant_index: u32, variant: &'static str, len: usize) -> Result<Self::Seriali...
[INFO] [stdout]     |                                        ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variant_index`
[INFO] [stdout]    --> src/lib.rs:617:66
[INFO] [stdout]     |
[INFO] [stdout] 617 | ..., name: &'static str, variant_index: u32, variant: &'static str, len: usize) -> Result<Self::SerializeTupleVariant, Self::Error> {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variant`
[INFO] [stdout]    --> src/lib.rs:617:86
[INFO] [stdout]     |
[INFO] [stdout] 617 | ...ic str, variant_index: u32, variant: &'static str, len: usize) -> Result<Self::SerializeTupleVariant, Self::Error> {
[INFO] [stdout]     |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/lib.rs:617:109
[INFO] [stdout]     |
[INFO] [stdout] 617 | ...ex: u32, variant: &'static str, len: usize) -> Result<Self::SerializeTupleVariant, Self::Error> {
[INFO] [stdout]     |                                    ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/lib.rs:622:36
[INFO] [stdout]     |
[INFO] [stdout] 622 |             fn serialize_map(self, len: Option<usize>) -> Result<Self::SerializeMap, Self::Error> {
[INFO] [stdout]     |                                    ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/lib.rs:627:39
[INFO] [stdout]     |
[INFO] [stdout] 627 |             fn serialize_struct(self, name: &'static str, len: usize) -> Result<Self::SerializeStruct, Self::Error> {
[INFO] [stdout]     |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/lib.rs:627:59
[INFO] [stdout]     |
[INFO] [stdout] 627 |             fn serialize_struct(self, name: &'static str, len: usize) -> Result<Self::SerializeStruct, Self::Error> {
[INFO] [stdout]     |                                                           ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/lib.rs:632:47
[INFO] [stdout]     |
[INFO] [stdout] 632 | ...   fn serialize_struct_variant(self, name: &'static str, variant_index: u32, variant: &'static str, len: usize) -> Result<Self::Serial...
[INFO] [stdout]     |                                         ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variant_index`
[INFO] [stdout]    --> src/lib.rs:632:67
[INFO] [stdout]     |
[INFO] [stdout] 632 | ..., name: &'static str, variant_index: u32, variant: &'static str, len: usize) -> Result<Self::SerializeStructVariant, Self::Error> {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variant`
[INFO] [stdout]    --> src/lib.rs:632:87
[INFO] [stdout]     |
[INFO] [stdout] 632 | ...ic str, variant_index: u32, variant: &'static str, len: usize) -> Result<Self::SerializeStructVariant, Self::Error> {
[INFO] [stdout]     |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/lib.rs:632:110
[INFO] [stdout]     |
[INFO] [stdout] 632 | ...ex: u32, variant: &'static str, len: usize) -> Result<Self::SerializeStructVariant, Self::Error> {
[INFO] [stdout]     |                                    ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:637:45
[INFO] [stdout]     |
[INFO] [stdout] 637 |             fn collect_str<T: ?Sized>(self, value: &T) -> Result<Self::Ok, Self::Error> where T: Display {
[INFO] [stdout]     |                                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:647:41
[INFO] [stdout]     |
[INFO] [stdout] 647 |             fn deserialize_any<V>(self, visitor: V) -> Result<V::Value, Error> where
[INFO] [stdout]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:652:42
[INFO] [stdout]     |
[INFO] [stdout] 652 |             fn deserialize_bool<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                          ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:657:40
[INFO] [stdout]     |
[INFO] [stdout] 657 |             fn deserialize_i8<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:662:41
[INFO] [stdout]     |
[INFO] [stdout] 662 |             fn deserialize_i16<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:675:41
[INFO] [stdout]     |
[INFO] [stdout] 675 |             fn deserialize_i64<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:680:40
[INFO] [stdout]     |
[INFO] [stdout] 680 |             fn deserialize_u8<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:685:41
[INFO] [stdout]     |
[INFO] [stdout] 685 |             fn deserialize_u16<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:690:41
[INFO] [stdout]     |
[INFO] [stdout] 690 |             fn deserialize_u32<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:695:41
[INFO] [stdout]     |
[INFO] [stdout] 695 |             fn deserialize_u64<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:700:41
[INFO] [stdout]     |
[INFO] [stdout] 700 |             fn deserialize_f32<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:705:41
[INFO] [stdout]     |
[INFO] [stdout] 705 |             fn deserialize_f64<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:710:42
[INFO] [stdout]     |
[INFO] [stdout] 710 |             fn deserialize_char<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                          ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:715:41
[INFO] [stdout]     |
[INFO] [stdout] 715 |             fn deserialize_str<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:731:43
[INFO] [stdout]     |
[INFO] [stdout] 731 |             fn deserialize_bytes<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:736:46
[INFO] [stdout]     |
[INFO] [stdout] 736 |             fn deserialize_byte_buf<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:741:44
[INFO] [stdout]     |
[INFO] [stdout] 741 |             fn deserialize_option<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:746:42
[INFO] [stdout]     |
[INFO] [stdout] 746 |             fn deserialize_unit<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                          ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/lib.rs:751:49
[INFO] [stdout]     |
[INFO] [stdout] 751 |             fn deserialize_unit_struct<V>(self, name: &'static str, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:751:69
[INFO] [stdout]     |
[INFO] [stdout] 751 |             fn deserialize_unit_struct<V>(self, name: &'static str, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                                                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/lib.rs:756:52
[INFO] [stdout]     |
[INFO] [stdout] 756 |             fn deserialize_newtype_struct<V>(self, name: &'static str, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:756:72
[INFO] [stdout]     |
[INFO] [stdout] 756 |             fn deserialize_newtype_struct<V>(self, name: &'static str, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                                                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:761:41
[INFO] [stdout]     |
[INFO] [stdout] 761 |             fn deserialize_seq<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/lib.rs:801:50
[INFO] [stdout]     |
[INFO] [stdout] 801 | ...   fn deserialize_tuple_struct<V>(self, name: &'static str, len: usize, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error>...
[INFO] [stdout]     |                                            ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/lib.rs:801:70
[INFO] [stdout]     |
[INFO] [stdout] 801 | ...   fn deserialize_tuple_struct<V>(self, name: &'static str, len: usize, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error>...
[INFO] [stdout]     |                                                                ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:801:82
[INFO] [stdout]     |
[INFO] [stdout] 801 | ...: &'static str, len: usize, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:806:41
[INFO] [stdout]     |
[INFO] [stdout] 806 |             fn deserialize_map<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/lib.rs:811:44
[INFO] [stdout]     |
[INFO] [stdout] 811 | ...   fn deserialize_struct<V>(self, name: &'static str, fields: &'static [&'static str], visitor: V) -> Result<<V as Visitor<'de>>::Valu...
[INFO] [stdout]     |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/lib.rs:842:42
[INFO] [stdout]     |
[INFO] [stdout] 842 | ...   fn deserialize_enum<V>(self, name: &'static str, variants: &'static [&'static str], visitor: V) -> Result<<V as Visitor<'de>>::Valu...
[INFO] [stdout]     |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variants`
[INFO] [stdout]    --> src/lib.rs:842:62
[INFO] [stdout]     |
[INFO] [stdout] 842 | ...(self, name: &'static str, variants: &'static [&'static str], visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                               ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variants`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:842:97
[INFO] [stdout]     |
[INFO] [stdout] 842 | ...s: &'static [&'static str], visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:847:48
[INFO] [stdout]     |
[INFO] [stdout] 847 |             fn deserialize_identifier<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:852:49
[INFO] [stdout]     |
[INFO] [stdout] 852 |             fn deserialize_ignored_any<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]    --> src/lib.rs:896:26
[INFO] [stdout]     |
[INFO] [stdout] 896 |             fn custom<T>(msg: T) -> Self where
[INFO] [stdout]     |                          ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]    --> src/lib.rs:904:26
[INFO] [stdout]     |
[INFO] [stdout] 904 |             fn custom<T>(msg: T) -> Self where
[INFO] [stdout]     |                          ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 76 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.76s
[INFO] running `Command { std: "docker" "inspect" "368cc8e2057641edf58e4a3ed4566bcfaaed2c91062c14b051470d07655e3f2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "368cc8e2057641edf58e4a3ed4566bcfaaed2c91062c14b051470d07655e3f2a", kill_on_drop: false }`
[INFO] [stdout] 368cc8e2057641edf58e4a3ed4566bcfaaed2c91062c14b051470d07655e3f2a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 300dd01df920ac8a84edaa9e7b811bb34b4bb1f8c0b34eca045de87d9742a206
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "300dd01df920ac8a84edaa9e7b811bb34b4bb1f8c0b34eca045de87d9742a206", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling plotters-backend v0.3.2
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling plotters-svg v0.3.1
[INFO] [stderr]    Compiling serde_json v1.0.71
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `Mutex`
[INFO] [stdout]   --> src/lib.rs:19:25
[INFO] [stdout]    |
[INFO] [stdout] 19 |         use std::sync::{Mutex, Arc};
[INFO] [stdout]    |                         ^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Instant`
[INFO] [stdout]   --> src/lib.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |         use std::time::Instant;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AtomicBool`, `Ordering`
[INFO] [stdout]   --> src/lib.rs:24:33
[INFO] [stdout]    |
[INFO] [stdout] 24 |         use std::sync::atomic::{AtomicBool, Ordering};
[INFO] [stdout]    |                                 ^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:130:56
[INFO] [stdout]     |
[INFO] [stdout] 130 |             fn serialize_element<T: ?Sized>(&mut self, value: &T) -> Result<(), Self::Error> where
[INFO] [stdout]     |                                                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:144:56
[INFO] [stdout]     |
[INFO] [stdout] 144 |             fn serialize_element<T: ?Sized>(&mut self, value: &T) -> Result<(), Self::Error> where
[INFO] [stdout]     |                                                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:158:54
[INFO] [stdout]     |
[INFO] [stdout] 158 |             fn serialize_field<T: ?Sized>(&mut self, value: &T) -> Result<(), Self::Error> where
[INFO] [stdout]     |                                                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:172:54
[INFO] [stdout]     |
[INFO] [stdout] 172 |             fn serialize_field<T: ?Sized>(&mut self, value: &T) -> Result<(), Self::Error> where
[INFO] [stdout]     |                                                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/lib.rs:186:52
[INFO] [stdout]     |
[INFO] [stdout] 186 |             fn serialize_key<T: ?Sized>(&mut self, key: &T) -> Result<(), Self::Error> where
[INFO] [stdout]     |                                                    ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:191:54
[INFO] [stdout]     |
[INFO] [stdout] 191 |             fn serialize_value<T: ?Sized>(&mut self, value: &T) -> Result<(), Self::Error> where
[INFO] [stdout]     |                                                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/lib.rs:284:54
[INFO] [stdout]     |
[INFO] [stdout] 284 |             fn serialize_field<T: ?Sized>(&mut self, key: &'static str, value: &T) -> Result<(), Self::Error> where
[INFO] [stdout]     |                                                      ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:284:73
[INFO] [stdout]     |
[INFO] [stdout] 284 |             fn serialize_field<T: ?Sized>(&mut self, key: &'static str, value: &T) -> Result<(), Self::Error> where
[INFO] [stdout]     |                                                                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/lib.rs:345:21
[INFO] [stdout]     |
[INFO] [stdout] 345 |                 for i in 0..num_fileds {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]    --> src/lib.rs:386:35
[INFO] [stdout]     |
[INFO] [stdout] 386 |                 for (name, type_, idx) in fields {
[INFO] [stdout]     |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:569:48
[INFO] [stdout]     |
[INFO] [stdout] 569 |             fn serialize_some<T: ?Sized>(self, value: &T) -> Result<Self::Ok, Self::Error> where
[INFO] [stdout]     |                                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/lib.rs:580:44
[INFO] [stdout]     |
[INFO] [stdout] 580 |             fn serialize_unit_struct(self, name: &'static str) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout]     |                                            ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/lib.rs:585:45
[INFO] [stdout]     |
[INFO] [stdout] 585 | ...   fn serialize_unit_variant(self, name: &'static str, variant_index: u32, variant: &'static str) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout]     |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variant_index`
[INFO] [stdout]    --> src/lib.rs:585:65
[INFO] [stdout]     |
[INFO] [stdout] 585 | ..., name: &'static str, variant_index: u32, variant: &'static str) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variant`
[INFO] [stdout]    --> src/lib.rs:585:85
[INFO] [stdout]     |
[INFO] [stdout] 585 | ...ic str, variant_index: u32, variant: &'static str) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout]     |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/lib.rs:590:58
[INFO] [stdout]     |
[INFO] [stdout] 590 |             fn serialize_newtype_struct<T: ?Sized>(self, name: &'static str, value: &T) -> Result<Self::Ok, Self::Error> where
[INFO] [stdout]     |                                                          ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:590:78
[INFO] [stdout]     |
[INFO] [stdout] 590 |             fn serialize_newtype_struct<T: ?Sized>(self, name: &'static str, value: &T) -> Result<Self::Ok, Self::Error> where
[INFO] [stdout]     |                                                                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/lib.rs:596:59
[INFO] [stdout]     |
[INFO] [stdout] 596 | ...   fn serialize_newtype_variant<T: ?Sized>(self, name: &'static str, variant_index: u32, variant: &'static str, value: &T) -> Result<S...
[INFO] [stdout]     |                                                     ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variant_index`
[INFO] [stdout]    --> src/lib.rs:596:79
[INFO] [stdout]     |
[INFO] [stdout] 596 | ..., name: &'static str, variant_index: u32, variant: &'static str, value: &T) -> Result<Self::Ok, Self::Error> where
[INFO] [stdout]     |                          ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variant`
[INFO] [stdout]    --> src/lib.rs:596:99
[INFO] [stdout]     |
[INFO] [stdout] 596 | ...ic str, variant_index: u32, variant: &'static str, value: &T) -> Result<Self::Ok, Self::Error> where
[INFO] [stdout]     |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:596:122
[INFO] [stdout]     |
[INFO] [stdout] 596 | ...: u32, variant: &'static str, value: &T) -> Result<Self::Ok, Self::Error> where
[INFO] [stdout]     |                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/lib.rs:602:36
[INFO] [stdout]     |
[INFO] [stdout] 602 |             fn serialize_seq(self, len: Option<usize>) -> Result<Self::SerializeSeq, Self::Error> {
[INFO] [stdout]     |                                    ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/lib.rs:607:38
[INFO] [stdout]     |
[INFO] [stdout] 607 |             fn serialize_tuple(self, len: usize) -> Result<Self::SerializeTuple, Self::Error> {
[INFO] [stdout]     |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/lib.rs:612:45
[INFO] [stdout]     |
[INFO] [stdout] 612 |             fn serialize_tuple_struct(self, name: &'static str, len: usize) -> Result<Self::SerializeTupleStruct, Self::Error> {
[INFO] [stdout]     |                                             ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/lib.rs:612:65
[INFO] [stdout]     |
[INFO] [stdout] 612 |             fn serialize_tuple_struct(self, name: &'static str, len: usize) -> Result<Self::SerializeTupleStruct, Self::Error> {
[INFO] [stdout]     |                                                                 ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/lib.rs:617:46
[INFO] [stdout]     |
[INFO] [stdout] 617 | ...   fn serialize_tuple_variant(self, name: &'static str, variant_index: u32, variant: &'static str, len: usize) -> Result<Self::Seriali...
[INFO] [stdout]     |                                        ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variant_index`
[INFO] [stdout]    --> src/lib.rs:617:66
[INFO] [stdout]     |
[INFO] [stdout] 617 | ..., name: &'static str, variant_index: u32, variant: &'static str, len: usize) -> Result<Self::SerializeTupleVariant, Self::Error> {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variant`
[INFO] [stdout]    --> src/lib.rs:617:86
[INFO] [stdout]     |
[INFO] [stdout] 617 | ...ic str, variant_index: u32, variant: &'static str, len: usize) -> Result<Self::SerializeTupleVariant, Self::Error> {
[INFO] [stdout]     |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/lib.rs:617:109
[INFO] [stdout]     |
[INFO] [stdout] 617 | ...ex: u32, variant: &'static str, len: usize) -> Result<Self::SerializeTupleVariant, Self::Error> {
[INFO] [stdout]     |                                    ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/lib.rs:622:36
[INFO] [stdout]     |
[INFO] [stdout] 622 |             fn serialize_map(self, len: Option<usize>) -> Result<Self::SerializeMap, Self::Error> {
[INFO] [stdout]     |                                    ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/lib.rs:627:39
[INFO] [stdout]     |
[INFO] [stdout] 627 |             fn serialize_struct(self, name: &'static str, len: usize) -> Result<Self::SerializeStruct, Self::Error> {
[INFO] [stdout]     |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/lib.rs:627:59
[INFO] [stdout]     |
[INFO] [stdout] 627 |             fn serialize_struct(self, name: &'static str, len: usize) -> Result<Self::SerializeStruct, Self::Error> {
[INFO] [stdout]     |                                                           ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/lib.rs:632:47
[INFO] [stdout]     |
[INFO] [stdout] 632 | ...   fn serialize_struct_variant(self, name: &'static str, variant_index: u32, variant: &'static str, len: usize) -> Result<Self::Serial...
[INFO] [stdout]     |                                         ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variant_index`
[INFO] [stdout]    --> src/lib.rs:632:67
[INFO] [stdout]     |
[INFO] [stdout] 632 | ..., name: &'static str, variant_index: u32, variant: &'static str, len: usize) -> Result<Self::SerializeStructVariant, Self::Error> {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variant`
[INFO] [stdout]    --> src/lib.rs:632:87
[INFO] [stdout]     |
[INFO] [stdout] 632 | ...ic str, variant_index: u32, variant: &'static str, len: usize) -> Result<Self::SerializeStructVariant, Self::Error> {
[INFO] [stdout]     |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/lib.rs:632:110
[INFO] [stdout]     |
[INFO] [stdout] 632 | ...ex: u32, variant: &'static str, len: usize) -> Result<Self::SerializeStructVariant, Self::Error> {
[INFO] [stdout]     |                                    ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:637:45
[INFO] [stdout]     |
[INFO] [stdout] 637 |             fn collect_str<T: ?Sized>(self, value: &T) -> Result<Self::Ok, Self::Error> where T: Display {
[INFO] [stdout]     |                                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:647:41
[INFO] [stdout]     |
[INFO] [stdout] 647 |             fn deserialize_any<V>(self, visitor: V) -> Result<V::Value, Error> where
[INFO] [stdout]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:652:42
[INFO] [stdout]     |
[INFO] [stdout] 652 |             fn deserialize_bool<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                          ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:657:40
[INFO] [stdout]     |
[INFO] [stdout] 657 |             fn deserialize_i8<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:662:41
[INFO] [stdout]     |
[INFO] [stdout] 662 |             fn deserialize_i16<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:675:41
[INFO] [stdout]     |
[INFO] [stdout] 675 |             fn deserialize_i64<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:680:40
[INFO] [stdout]     |
[INFO] [stdout] 680 |             fn deserialize_u8<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:685:41
[INFO] [stdout]     |
[INFO] [stdout] 685 |             fn deserialize_u16<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:690:41
[INFO] [stdout]     |
[INFO] [stdout] 690 |             fn deserialize_u32<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:695:41
[INFO] [stdout]     |
[INFO] [stdout] 695 |             fn deserialize_u64<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:700:41
[INFO] [stdout]     |
[INFO] [stdout] 700 |             fn deserialize_f32<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:705:41
[INFO] [stdout]     |
[INFO] [stdout] 705 |             fn deserialize_f64<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:710:42
[INFO] [stdout]     |
[INFO] [stdout] 710 |             fn deserialize_char<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                          ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:715:41
[INFO] [stdout]     |
[INFO] [stdout] 715 |             fn deserialize_str<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:731:43
[INFO] [stdout]     |
[INFO] [stdout] 731 |             fn deserialize_bytes<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:736:46
[INFO] [stdout]     |
[INFO] [stdout] 736 |             fn deserialize_byte_buf<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:741:44
[INFO] [stdout]     |
[INFO] [stdout] 741 |             fn deserialize_option<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:746:42
[INFO] [stdout]     |
[INFO] [stdout] 746 |             fn deserialize_unit<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                          ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/lib.rs:751:49
[INFO] [stdout]     |
[INFO] [stdout] 751 |             fn deserialize_unit_struct<V>(self, name: &'static str, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:751:69
[INFO] [stdout]     |
[INFO] [stdout] 751 |             fn deserialize_unit_struct<V>(self, name: &'static str, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                                                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/lib.rs:756:52
[INFO] [stdout]     |
[INFO] [stdout] 756 |             fn deserialize_newtype_struct<V>(self, name: &'static str, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:756:72
[INFO] [stdout]     |
[INFO] [stdout] 756 |             fn deserialize_newtype_struct<V>(self, name: &'static str, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                                                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:761:41
[INFO] [stdout]     |
[INFO] [stdout] 761 |             fn deserialize_seq<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/lib.rs:801:50
[INFO] [stdout]     |
[INFO] [stdout] 801 | ...   fn deserialize_tuple_struct<V>(self, name: &'static str, len: usize, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error>...
[INFO] [stdout]     |                                            ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/lib.rs:801:70
[INFO] [stdout]     |
[INFO] [stdout] 801 | ...   fn deserialize_tuple_struct<V>(self, name: &'static str, len: usize, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error>...
[INFO] [stdout]     |                                                                ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:801:82
[INFO] [stdout]     |
[INFO] [stdout] 801 | ...: &'static str, len: usize, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:806:41
[INFO] [stdout]     |
[INFO] [stdout] 806 |             fn deserialize_map<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/lib.rs:811:44
[INFO] [stdout]     |
[INFO] [stdout] 811 | ...   fn deserialize_struct<V>(self, name: &'static str, fields: &'static [&'static str], visitor: V) -> Result<<V as Visitor<'de>>::Valu...
[INFO] [stdout]     |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/lib.rs:842:42
[INFO] [stdout]     |
[INFO] [stdout] 842 | ...   fn deserialize_enum<V>(self, name: &'static str, variants: &'static [&'static str], visitor: V) -> Result<<V as Visitor<'de>>::Valu...
[INFO] [stdout]     |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variants`
[INFO] [stdout]    --> src/lib.rs:842:62
[INFO] [stdout]     |
[INFO] [stdout] 842 | ...(self, name: &'static str, variants: &'static [&'static str], visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                               ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variants`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:842:97
[INFO] [stdout]     |
[INFO] [stdout] 842 | ...s: &'static [&'static str], visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:847:48
[INFO] [stdout]     |
[INFO] [stdout] 847 |             fn deserialize_identifier<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:852:49
[INFO] [stdout]     |
[INFO] [stdout] 852 |             fn deserialize_ignored_any<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]    --> src/lib.rs:896:26
[INFO] [stdout]     |
[INFO] [stdout] 896 |             fn custom<T>(msg: T) -> Self where
[INFO] [stdout]     |                          ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]    --> src/lib.rs:904:26
[INFO] [stdout]     |
[INFO] [stdout] 904 |             fn custom<T>(msg: T) -> Self where
[INFO] [stdout]     |                          ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 76 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling plotters v0.3.1
[INFO] [stderr]    Compiling criterion-plot v0.4.4
[INFO] [stderr]    Compiling criterion v0.3.5
[INFO] [stderr]    Compiling jvm-serializable v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `Mutex`
[INFO] [stdout]   --> src/lib.rs:19:25
[INFO] [stdout]    |
[INFO] [stdout] 19 |         use std::sync::{Mutex, Arc};
[INFO] [stdout]    |                         ^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Instant`
[INFO] [stdout]   --> src/lib.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |         use std::time::Instant;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AtomicBool`, `Ordering`
[INFO] [stdout]   --> src/lib.rs:24:33
[INFO] [stdout]    |
[INFO] [stdout] 24 |         use std::sync::atomic::{AtomicBool, Ordering};
[INFO] [stdout]    |                                 ^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:130:56
[INFO] [stdout]     |
[INFO] [stdout] 130 |             fn serialize_element<T: ?Sized>(&mut self, value: &T) -> Result<(), Self::Error> where
[INFO] [stdout]     |                                                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:144:56
[INFO] [stdout]     |
[INFO] [stdout] 144 |             fn serialize_element<T: ?Sized>(&mut self, value: &T) -> Result<(), Self::Error> where
[INFO] [stdout]     |                                                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:158:54
[INFO] [stdout]     |
[INFO] [stdout] 158 |             fn serialize_field<T: ?Sized>(&mut self, value: &T) -> Result<(), Self::Error> where
[INFO] [stdout]     |                                                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:172:54
[INFO] [stdout]     |
[INFO] [stdout] 172 |             fn serialize_field<T: ?Sized>(&mut self, value: &T) -> Result<(), Self::Error> where
[INFO] [stdout]     |                                                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/lib.rs:186:52
[INFO] [stdout]     |
[INFO] [stdout] 186 |             fn serialize_key<T: ?Sized>(&mut self, key: &T) -> Result<(), Self::Error> where
[INFO] [stdout]     |                                                    ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:191:54
[INFO] [stdout]     |
[INFO] [stdout] 191 |             fn serialize_value<T: ?Sized>(&mut self, value: &T) -> Result<(), Self::Error> where
[INFO] [stdout]     |                                                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/lib.rs:284:54
[INFO] [stdout]     |
[INFO] [stdout] 284 |             fn serialize_field<T: ?Sized>(&mut self, key: &'static str, value: &T) -> Result<(), Self::Error> where
[INFO] [stdout]     |                                                      ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:284:73
[INFO] [stdout]     |
[INFO] [stdout] 284 |             fn serialize_field<T: ?Sized>(&mut self, key: &'static str, value: &T) -> Result<(), Self::Error> where
[INFO] [stdout]     |                                                                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/lib.rs:345:21
[INFO] [stdout]     |
[INFO] [stdout] 345 |                 for i in 0..num_fileds {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]    --> src/lib.rs:386:35
[INFO] [stdout]     |
[INFO] [stdout] 386 |                 for (name, type_, idx) in fields {
[INFO] [stdout]     |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:569:48
[INFO] [stdout]     |
[INFO] [stdout] 569 |             fn serialize_some<T: ?Sized>(self, value: &T) -> Result<Self::Ok, Self::Error> where
[INFO] [stdout]     |                                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/lib.rs:580:44
[INFO] [stdout]     |
[INFO] [stdout] 580 |             fn serialize_unit_struct(self, name: &'static str) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout]     |                                            ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/lib.rs:585:45
[INFO] [stdout]     |
[INFO] [stdout] 585 | ...   fn serialize_unit_variant(self, name: &'static str, variant_index: u32, variant: &'static str) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout]     |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variant_index`
[INFO] [stdout]    --> src/lib.rs:585:65
[INFO] [stdout]     |
[INFO] [stdout] 585 | ..., name: &'static str, variant_index: u32, variant: &'static str) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variant`
[INFO] [stdout]    --> src/lib.rs:585:85
[INFO] [stdout]     |
[INFO] [stdout] 585 | ...ic str, variant_index: u32, variant: &'static str) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout]     |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/lib.rs:590:58
[INFO] [stdout]     |
[INFO] [stdout] 590 |             fn serialize_newtype_struct<T: ?Sized>(self, name: &'static str, value: &T) -> Result<Self::Ok, Self::Error> where
[INFO] [stdout]     |                                                          ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:590:78
[INFO] [stdout]     |
[INFO] [stdout] 590 |             fn serialize_newtype_struct<T: ?Sized>(self, name: &'static str, value: &T) -> Result<Self::Ok, Self::Error> where
[INFO] [stdout]     |                                                                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/lib.rs:596:59
[INFO] [stdout]     |
[INFO] [stdout] 596 | ...   fn serialize_newtype_variant<T: ?Sized>(self, name: &'static str, variant_index: u32, variant: &'static str, value: &T) -> Result<S...
[INFO] [stdout]     |                                                     ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variant_index`
[INFO] [stdout]    --> src/lib.rs:596:79
[INFO] [stdout]     |
[INFO] [stdout] 596 | ..., name: &'static str, variant_index: u32, variant: &'static str, value: &T) -> Result<Self::Ok, Self::Error> where
[INFO] [stdout]     |                          ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variant`
[INFO] [stdout]    --> src/lib.rs:596:99
[INFO] [stdout]     |
[INFO] [stdout] 596 | ...ic str, variant_index: u32, variant: &'static str, value: &T) -> Result<Self::Ok, Self::Error> where
[INFO] [stdout]     |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:596:122
[INFO] [stdout]     |
[INFO] [stdout] 596 | ...: u32, variant: &'static str, value: &T) -> Result<Self::Ok, Self::Error> where
[INFO] [stdout]     |                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/lib.rs:602:36
[INFO] [stdout]     |
[INFO] [stdout] 602 |             fn serialize_seq(self, len: Option<usize>) -> Result<Self::SerializeSeq, Self::Error> {
[INFO] [stdout]     |                                    ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/lib.rs:607:38
[INFO] [stdout]     |
[INFO] [stdout] 607 |             fn serialize_tuple(self, len: usize) -> Result<Self::SerializeTuple, Self::Error> {
[INFO] [stdout]     |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/lib.rs:612:45
[INFO] [stdout]     |
[INFO] [stdout] 612 |             fn serialize_tuple_struct(self, name: &'static str, len: usize) -> Result<Self::SerializeTupleStruct, Self::Error> {
[INFO] [stdout]     |                                             ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/lib.rs:612:65
[INFO] [stdout]     |
[INFO] [stdout] 612 |             fn serialize_tuple_struct(self, name: &'static str, len: usize) -> Result<Self::SerializeTupleStruct, Self::Error> {
[INFO] [stdout]     |                                                                 ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/lib.rs:617:46
[INFO] [stdout]     |
[INFO] [stdout] 617 | ...   fn serialize_tuple_variant(self, name: &'static str, variant_index: u32, variant: &'static str, len: usize) -> Result<Self::Seriali...
[INFO] [stdout]     |                                        ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variant_index`
[INFO] [stdout]    --> src/lib.rs:617:66
[INFO] [stdout]     |
[INFO] [stdout] 617 | ..., name: &'static str, variant_index: u32, variant: &'static str, len: usize) -> Result<Self::SerializeTupleVariant, Self::Error> {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variant`
[INFO] [stdout]    --> src/lib.rs:617:86
[INFO] [stdout]     |
[INFO] [stdout] 617 | ...ic str, variant_index: u32, variant: &'static str, len: usize) -> Result<Self::SerializeTupleVariant, Self::Error> {
[INFO] [stdout]     |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/lib.rs:617:109
[INFO] [stdout]     |
[INFO] [stdout] 617 | ...ex: u32, variant: &'static str, len: usize) -> Result<Self::SerializeTupleVariant, Self::Error> {
[INFO] [stdout]     |                                    ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/lib.rs:622:36
[INFO] [stdout]     |
[INFO] [stdout] 622 |             fn serialize_map(self, len: Option<usize>) -> Result<Self::SerializeMap, Self::Error> {
[INFO] [stdout]     |                                    ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/lib.rs:627:39
[INFO] [stdout]     |
[INFO] [stdout] 627 |             fn serialize_struct(self, name: &'static str, len: usize) -> Result<Self::SerializeStruct, Self::Error> {
[INFO] [stdout]     |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/lib.rs:627:59
[INFO] [stdout]     |
[INFO] [stdout] 627 |             fn serialize_struct(self, name: &'static str, len: usize) -> Result<Self::SerializeStruct, Self::Error> {
[INFO] [stdout]     |                                                           ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/lib.rs:632:47
[INFO] [stdout]     |
[INFO] [stdout] 632 | ...   fn serialize_struct_variant(self, name: &'static str, variant_index: u32, variant: &'static str, len: usize) -> Result<Self::Serial...
[INFO] [stdout]     |                                         ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variant_index`
[INFO] [stdout]    --> src/lib.rs:632:67
[INFO] [stdout]     |
[INFO] [stdout] 632 | ..., name: &'static str, variant_index: u32, variant: &'static str, len: usize) -> Result<Self::SerializeStructVariant, Self::Error> {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variant`
[INFO] [stdout]    --> src/lib.rs:632:87
[INFO] [stdout]     |
[INFO] [stdout] 632 | ...ic str, variant_index: u32, variant: &'static str, len: usize) -> Result<Self::SerializeStructVariant, Self::Error> {
[INFO] [stdout]     |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/lib.rs:632:110
[INFO] [stdout]     |
[INFO] [stdout] 632 | ...ex: u32, variant: &'static str, len: usize) -> Result<Self::SerializeStructVariant, Self::Error> {
[INFO] [stdout]     |                                    ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:637:45
[INFO] [stdout]     |
[INFO] [stdout] 637 |             fn collect_str<T: ?Sized>(self, value: &T) -> Result<Self::Ok, Self::Error> where T: Display {
[INFO] [stdout]     |                                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:647:41
[INFO] [stdout]     |
[INFO] [stdout] 647 |             fn deserialize_any<V>(self, visitor: V) -> Result<V::Value, Error> where
[INFO] [stdout]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:652:42
[INFO] [stdout]     |
[INFO] [stdout] 652 |             fn deserialize_bool<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                          ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:657:40
[INFO] [stdout]     |
[INFO] [stdout] 657 |             fn deserialize_i8<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:662:41
[INFO] [stdout]     |
[INFO] [stdout] 662 |             fn deserialize_i16<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:675:41
[INFO] [stdout]     |
[INFO] [stdout] 675 |             fn deserialize_i64<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:680:40
[INFO] [stdout]     |
[INFO] [stdout] 680 |             fn deserialize_u8<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:685:41
[INFO] [stdout]     |
[INFO] [stdout] 685 |             fn deserialize_u16<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:690:41
[INFO] [stdout]     |
[INFO] [stdout] 690 |             fn deserialize_u32<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:695:41
[INFO] [stdout]     |
[INFO] [stdout] 695 |             fn deserialize_u64<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:700:41
[INFO] [stdout]     |
[INFO] [stdout] 700 |             fn deserialize_f32<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:705:41
[INFO] [stdout]     |
[INFO] [stdout] 705 |             fn deserialize_f64<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:710:42
[INFO] [stdout]     |
[INFO] [stdout] 710 |             fn deserialize_char<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                          ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:715:41
[INFO] [stdout]     |
[INFO] [stdout] 715 |             fn deserialize_str<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:731:43
[INFO] [stdout]     |
[INFO] [stdout] 731 |             fn deserialize_bytes<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:736:46
[INFO] [stdout]     |
[INFO] [stdout] 736 |             fn deserialize_byte_buf<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:741:44
[INFO] [stdout]     |
[INFO] [stdout] 741 |             fn deserialize_option<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:746:42
[INFO] [stdout]     |
[INFO] [stdout] 746 |             fn deserialize_unit<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                          ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/lib.rs:751:49
[INFO] [stdout]     |
[INFO] [stdout] 751 |             fn deserialize_unit_struct<V>(self, name: &'static str, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:751:69
[INFO] [stdout]     |
[INFO] [stdout] 751 |             fn deserialize_unit_struct<V>(self, name: &'static str, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                                                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/lib.rs:756:52
[INFO] [stdout]     |
[INFO] [stdout] 756 |             fn deserialize_newtype_struct<V>(self, name: &'static str, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:756:72
[INFO] [stdout]     |
[INFO] [stdout] 756 |             fn deserialize_newtype_struct<V>(self, name: &'static str, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                                                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:761:41
[INFO] [stdout]     |
[INFO] [stdout] 761 |             fn deserialize_seq<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/lib.rs:801:50
[INFO] [stdout]     |
[INFO] [stdout] 801 | ...   fn deserialize_tuple_struct<V>(self, name: &'static str, len: usize, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error>...
[INFO] [stdout]     |                                            ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/lib.rs:801:70
[INFO] [stdout]     |
[INFO] [stdout] 801 | ...   fn deserialize_tuple_struct<V>(self, name: &'static str, len: usize, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error>...
[INFO] [stdout]     |                                                                ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:801:82
[INFO] [stdout]     |
[INFO] [stdout] 801 | ...: &'static str, len: usize, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:806:41
[INFO] [stdout]     |
[INFO] [stdout] 806 |             fn deserialize_map<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/lib.rs:811:44
[INFO] [stdout]     |
[INFO] [stdout] 811 | ...   fn deserialize_struct<V>(self, name: &'static str, fields: &'static [&'static str], visitor: V) -> Result<<V as Visitor<'de>>::Valu...
[INFO] [stdout]     |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/lib.rs:842:42
[INFO] [stdout]     |
[INFO] [stdout] 842 | ...   fn deserialize_enum<V>(self, name: &'static str, variants: &'static [&'static str], visitor: V) -> Result<<V as Visitor<'de>>::Valu...
[INFO] [stdout]     |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variants`
[INFO] [stdout]    --> src/lib.rs:842:62
[INFO] [stdout]     |
[INFO] [stdout] 842 | ...(self, name: &'static str, variants: &'static [&'static str], visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                               ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variants`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:842:97
[INFO] [stdout]     |
[INFO] [stdout] 842 | ...s: &'static [&'static str], visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:847:48
[INFO] [stdout]     |
[INFO] [stdout] 847 |             fn deserialize_identifier<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/lib.rs:852:49
[INFO] [stdout]     |
[INFO] [stdout] 852 |             fn deserialize_ignored_any<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stdout]     |                                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]    --> src/lib.rs:896:26
[INFO] [stdout]     |
[INFO] [stdout] 896 |             fn custom<T>(msg: T) -> Self where
[INFO] [stdout]     |                          ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]    --> src/lib.rs:904:26
[INFO] [stdout]     |
[INFO] [stdout] 904 |             fn custom<T>(msg: T) -> Self where
[INFO] [stdout]     |                          ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 76 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 55.52s
[INFO] running `Command { std: "docker" "inspect" "300dd01df920ac8a84edaa9e7b811bb34b4bb1f8c0b34eca045de87d9742a206", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "300dd01df920ac8a84edaa9e7b811bb34b4bb1f8c0b34eca045de87d9742a206", kill_on_drop: false }`
[INFO] [stdout] 300dd01df920ac8a84edaa9e7b811bb34b4bb1f8c0b34eca045de87d9742a206
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2e9b10a32dee219546f2ff76a0831dcd61d29fec944351f31b60bf25579c9153
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2e9b10a32dee219546f2ff76a0831dcd61d29fec944351f31b60bf25579c9153", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> src/lib.rs:5:1
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 5 | #[macro_use]
[INFO] [stdout] 
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] running 1 test
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stderr]  --> src/lib.rs:7:1
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stderr] 7 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Arc`, `Mutex`
[INFO] [stderr]   --> src/lib.rs:19:25
[INFO] [stderr]    |
[INFO] [stderr] 19 |         use std::sync::{Mutex, Arc};
[INFO] [stderr]    |                         ^^^^^  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Instant`
[INFO] [stderr]   --> src/lib.rs:21:13
[INFO] [stderr]    |
[INFO] [stderr] 21 |         use std::time::Instant;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `AtomicBool`, `Ordering`
[INFO] [stderr]   --> src/lib.rs:24:33
[INFO] [stderr]    |
[INFO] [stderr] 24 |         use std::sync::atomic::{AtomicBool, Ordering};
[INFO] [stderr]    |                                 ^^^^^^^^^^  ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/lib.rs:130:56
[INFO] [stderr]     |
[INFO] [stderr] 130 |             fn serialize_element<T: ?Sized>(&mut self, value: &T) -> Result<(), Self::Error> where
[INFO] [stderr]     |                                                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/lib.rs:144:56
[INFO] [stderr]     |
[INFO] [stderr] 144 |             fn serialize_element<T: ?Sized>(&mut self, value: &T) -> Result<(), Self::Error> where
[INFO] [stderr]     |                                                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/lib.rs:158:54
[INFO] [stderr]     |
[INFO] [stderr] 158 |             fn serialize_field<T: ?Sized>(&mut self, value: &T) -> Result<(), Self::Error> where
[INFO] [stderr]     |                                                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/lib.rs:172:54
[INFO] [stderr]     |
[INFO] [stderr] 172 |             fn serialize_field<T: ?Sized>(&mut self, value: &T) -> Result<(), Self::Error> where
[INFO] [stderr]     |                                                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]    --> src/lib.rs:186:52
[INFO] [stderr]     |
[INFO] [stderr] 186 |             fn serialize_key<T: ?Sized>(&mut self, key: &T) -> Result<(), Self::Error> where
[INFO] [stderr]     |                                                    ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/lib.rs:191:54
[INFO] [stderr]     |
[INFO] [stderr] 191 |             fn serialize_value<T: ?Sized>(&mut self, value: &T) -> Result<(), Self::Error> where
[INFO] [stderr]     |                                                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]    --> src/lib.rs:284:54
[INFO] [stderr]     |
[INFO] [stderr] 284 |             fn serialize_field<T: ?Sized>(&mut self, key: &'static str, value: &T) -> Result<(), Self::Error> where
[INFO] [stderr]     |                                                      ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/lib.rs:284:73
[INFO] [stderr]     |
[INFO] [stderr] 284 |             fn serialize_field<T: ?Sized>(&mut self, key: &'static str, value: &T) -> Result<(), Self::Error> where
[INFO] [stderr]     |                                                                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/lib.rs:345:21
[INFO] [stderr]     |
[INFO] [stderr] 345 |                 for i in 0..num_fileds {
[INFO] [stderr]     |                     ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `idx`
[INFO] [stderr]    --> src/lib.rs:386:35
[INFO] [stderr]     |
[INFO] [stderr] 386 |                 for (name, type_, idx) in fields {
[INFO] [stderr]     |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/lib.rs:569:48
[INFO] [stderr]     |
[INFO] [stderr] 569 |             fn serialize_some<T: ?Sized>(self, value: &T) -> Result<Self::Ok, Self::Error> where
[INFO] [stderr]     |                                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/lib.rs:580:44
[INFO] [stderr]     |
[INFO] [stderr] 580 |             fn serialize_unit_struct(self, name: &'static str) -> Result<Self::Ok, Self::Error> {
[INFO] [stderr]     |                                            ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/lib.rs:585:45
[INFO] [stderr]     |
[INFO] [stderr] 585 | ...   fn serialize_unit_variant(self, name: &'static str, variant_index: u32, variant: &'static str) -> Result<Self::Ok, Self::Error> {
[INFO] [stderr]     |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `variant_index`
[INFO] [stderr]    --> src/lib.rs:585:65
[INFO] [stderr]     |
[INFO] [stderr] 585 | ..., name: &'static str, variant_index: u32, variant: &'static str) -> Result<Self::Ok, Self::Error> {
[INFO] [stderr]     |                          ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant_index`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `variant`
[INFO] [stderr]    --> src/lib.rs:585:85
[INFO] [stderr]     |
[INFO] [stderr] 585 | ...ic str, variant_index: u32, variant: &'static str) -> Result<Self::Ok, Self::Error> {
[INFO] [stderr]     |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/lib.rs:590:58
[INFO] [stderr]     |
[INFO] [stderr] 590 |             fn serialize_newtype_struct<T: ?Sized>(self, name: &'static str, value: &T) -> Result<Self::Ok, Self::Error> where
[INFO] [stderr]     |                                                          ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/lib.rs:590:78
[INFO] [stderr]     |
[INFO] [stderr] 590 |             fn serialize_newtype_struct<T: ?Sized>(self, name: &'static str, value: &T) -> Result<Self::Ok, Self::Error> where
[INFO] [stderr]     |                                                                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/lib.rs:596:59
[INFO] [stderr]     |
[INFO] [stderr] 596 | ...   fn serialize_newtype_variant<T: ?Sized>(self, name: &'static str, variant_index: u32, variant: &'static str, value: &T) -> Result<S...
[INFO] [stderr]     |                                                     ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `variant_index`
[INFO] [stderr]    --> src/lib.rs:596:79
[INFO] [stderr]     |
[INFO] [stderr] 596 | ..., name: &'static str, variant_index: u32, variant: &'static str, value: &T) -> Result<Self::Ok, Self::Error> where
[INFO] [stderr]     |                          ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant_index`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `variant`
[INFO] [stderr]    --> src/lib.rs:596:99
[INFO] [stderr]     |
[INFO] [stderr] 596 | ...ic str, variant_index: u32, variant: &'static str, value: &T) -> Result<Self::Ok, Self::Error> where
[INFO] [stderr]     |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/lib.rs:596:122
[INFO] [stderr]     |
[INFO] [stderr] 596 | ...: u32, variant: &'static str, value: &T) -> Result<Self::Ok, Self::Error> where
[INFO] [stderr]     |                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/lib.rs:602:36
[INFO] [stderr]     |
[INFO] [stderr] 602 |             fn serialize_seq(self, len: Option<usize>) -> Result<Self::SerializeSeq, Self::Error> {
[INFO] [stderr]     |                                    ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/lib.rs:607:38
[INFO] [stderr]     |
[INFO] [stderr] 607 |             fn serialize_tuple(self, len: usize) -> Result<Self::SerializeTuple, Self::Error> {
[INFO] [stderr]     |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/lib.rs:612:45
[INFO] [stderr]     |
[INFO] [stderr] 612 |             fn serialize_tuple_struct(self, name: &'static str, len: usize) -> Result<Self::SerializeTupleStruct, Self::Error> {
[INFO] [stderr]     |                                             ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/lib.rs:612:65
[INFO] [stderr]     |
[INFO] [stderr] 612 |             fn serialize_tuple_struct(self, name: &'static str, len: usize) -> Result<Self::SerializeTupleStruct, Self::Error> {
[INFO] [stderr]     |                                                                 ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/lib.rs:617:46
[INFO] [stderr]     |
[INFO] [stderr] 617 | ...   fn serialize_tuple_variant(self, name: &'static str, variant_index: u32, variant: &'static str, len: usize) -> Result<Self::Seriali...
[INFO] [stderr]     |                                        ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `variant_index`
[INFO] [stderr]    --> src/lib.rs:617:66
[INFO] [stderr]     |
[INFO] [stderr] 617 | ..., name: &'static str, variant_index: u32, variant: &'static str, len: usize) -> Result<Self::SerializeTupleVariant, Self::Error> {
[INFO] [stderr]     |                          ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant_index`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `variant`
[INFO] [stderr]    --> src/lib.rs:617:86
[INFO] [stderr]     |
[INFO] [stderr] 617 | ...ic str, variant_index: u32, variant: &'static str, len: usize) -> Result<Self::SerializeTupleVariant, Self::Error> {
[INFO] [stderr]     |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/lib.rs:617:109
[INFO] [stderr]     |
[INFO] [stderr] 617 | ...ex: u32, variant: &'static str, len: usize) -> Result<Self::SerializeTupleVariant, Self::Error> {
[INFO] [stderr]     |                                    ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/lib.rs:622:36
[INFO] [stderr]     |
[INFO] [stderr] 622 |             fn serialize_map(self, len: Option<usize>) -> Result<Self::SerializeMap, Self::Error> {
[INFO] [stderr]     |                                    ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/lib.rs:627:39
[INFO] [stderr]     |
[INFO] [stderr] 627 |             fn serialize_struct(self, name: &'static str, len: usize) -> Result<Self::SerializeStruct, Self::Error> {
[INFO] [stderr]     |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/lib.rs:627:59
[INFO] [stderr]     |
[INFO] [stderr] 627 |             fn serialize_struct(self, name: &'static str, len: usize) -> Result<Self::SerializeStruct, Self::Error> {
[INFO] [stderr]     |                                                           ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/lib.rs:632:47
[INFO] [stderr]     |
[INFO] [stderr] 632 | ...   fn serialize_struct_variant(self, name: &'static str, variant_index: u32, variant: &'static str, len: usize) -> Result<Self::Serial...
[INFO] [stderr]     |                                         ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `variant_index`
[INFO] [stderr]    --> src/lib.rs:632:67
[INFO] [stderr]     |
[INFO] [stderr] 632 | ..., name: &'static str, variant_index: u32, variant: &'static str, len: usize) -> Result<Self::SerializeStructVariant, Self::Error> {
[INFO] [stderr]     |                          ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant_index`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `variant`
[INFO] [stderr]    --> src/lib.rs:632:87
[INFO] [stderr]     |
[INFO] [stderr] 632 | ...ic str, variant_index: u32, variant: &'static str, len: usize) -> Result<Self::SerializeStructVariant, Self::Error> {
[INFO] [stderr]     |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/lib.rs:632:110
[INFO] [stderr]     |
[INFO] [stderr] 632 | ...ex: u32, variant: &'static str, len: usize) -> Result<Self::SerializeStructVariant, Self::Error> {
[INFO] [stderr]     |                                    ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/lib.rs:637:45
[INFO] [stderr]     |
[INFO] [stderr] 637 |             fn collect_str<T: ?Sized>(self, value: &T) -> Result<Self::Ok, Self::Error> where T: Display {
[INFO] [stderr]     |                                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/lib.rs:647:41
[INFO] [stderr]     |
[INFO] [stderr] 647 |             fn deserialize_any<V>(self, visitor: V) -> Result<V::Value, Error> where
[INFO] [stderr]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/lib.rs:652:42
[INFO] [stderr]     |
[INFO] [stderr] 652 |             fn deserialize_bool<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stderr]     |                                          ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/lib.rs:657:40
[INFO] [stderr]     |
[INFO] [stderr] 657 |             fn deserialize_i8<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stderr]     |                                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/lib.rs:662:41
[INFO] [stderr]     |
[INFO] [stderr] 662 |             fn deserialize_i16<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stderr]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/lib.rs:675:41
[INFO] [stderr]     |
[INFO] [stderr] 675 |             fn deserialize_i64<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stderr]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/lib.rs:680:40
[INFO] [stderr]     |
[INFO] [stderr] 680 |             fn deserialize_u8<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stderr]     |                                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/lib.rs:685:41
[INFO] [stderr]     |
[INFO] [stderr] 685 |             fn deserialize_u16<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stderr]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/lib.rs:690:41
[INFO] [stderr]     |
[INFO] [stderr] 690 |             fn deserialize_u32<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stderr]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/lib.rs:695:41
[INFO] [stderr]     |
[INFO] [stderr] 695 |             fn deserialize_u64<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stderr]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/lib.rs:700:41
[INFO] [stderr]     |
[INFO] [stderr] 700 |             fn deserialize_f32<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stderr]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/lib.rs:705:41
[INFO] [stderr]     |
[INFO] [stderr] 705 |             fn deserialize_f64<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stderr]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/lib.rs:710:42
[INFO] [stderr]     |
[INFO] [stderr] 710 |             fn deserialize_char<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stderr]     |                                          ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/lib.rs:715:41
[INFO] [stderr]     |
[INFO] [stderr] 715 |             fn deserialize_str<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stderr]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/lib.rs:731:43
[INFO] [stderr]     |
[INFO] [stderr] 731 |             fn deserialize_bytes<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stderr]     |                                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/lib.rs:736:46
[INFO] [stderr]     |
[INFO] [stderr] 736 |             fn deserialize_byte_buf<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stderr]     |                                              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/lib.rs:741:44
[INFO] [stderr]     |
[INFO] [stderr] 741 |             fn deserialize_option<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stderr]     |                                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/lib.rs:746:42
[INFO] [stderr]     |
[INFO] [stderr] 746 |             fn deserialize_unit<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stderr]     |                                          ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/lib.rs:751:49
[INFO] [stderr]     |
[INFO] [stderr] 751 |             fn deserialize_unit_struct<V>(self, name: &'static str, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stderr]     |                                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/lib.rs:751:69
[INFO] [stderr]     |
[INFO] [stderr] 751 |             fn deserialize_unit_struct<V>(self, name: &'static str, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stderr]     |                                                                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/lib.rs:756:52
[INFO] [stderr]     |
[INFO] [stderr] 756 |             fn deserialize_newtype_struct<V>(self, name: &'static str, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stderr]     |                                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/lib.rs:756:72
[INFO] [stderr]     |
[INFO] [stderr] 756 |             fn deserialize_newtype_struct<V>(self, name: &'static str, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stderr]     |                                                                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/lib.rs:761:41
[INFO] [stderr]     |
[INFO] [stderr] 761 |             fn deserialize_seq<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stderr]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/lib.rs:801:50
[INFO] [stderr]     |
[INFO] [stderr] 801 | ...   fn deserialize_tuple_struct<V>(self, name: &'static str, len: usize, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error>...
[INFO] [stderr]     |                                            ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/lib.rs:801:70
[INFO] [stderr]     |
[INFO] [stderr] 801 | ...   fn deserialize_tuple_struct<V>(self, name: &'static str, len: usize, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error>...
[INFO] [stderr]     |                                                                ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/lib.rs:801:82
[INFO] [stderr]     |
[INFO] [stderr] 801 | ...: &'static str, len: usize, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stderr]     |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/lib.rs:806:41
[INFO] [stderr]     |
[INFO] [stderr] 806 |             fn deserialize_map<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stderr]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/lib.rs:811:44
[INFO] [stderr]     |
[INFO] [stderr] 811 | ...   fn deserialize_struct<V>(self, name: &'static str, fields: &'static [&'static str], visitor: V) -> Result<<V as Visitor<'de>>::Valu...
[INFO] [stderr]     |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/lib.rs:842:42
[INFO] [stderr]     |
[INFO] [stderr] 842 | ...   fn deserialize_enum<V>(self, name: &'static str, variants: &'static [&'static str], visitor: V) -> Result<<V as Visitor<'de>>::Valu...
[INFO] [stderr]     |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `variants`
[INFO] [stderr]    --> src/lib.rs:842:62
[INFO] [stderr]     |
[INFO] [stderr] 842 | ...(self, name: &'static str, variants: &'static [&'static str], visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stderr]     |                               ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variants`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/lib.rs:842:97
[INFO] [stderr]     |
[INFO] [stderr] 842 | ...s: &'static [&'static str], visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stderr]     |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/lib.rs:847:48
[INFO] [stderr]     |
[INFO] [stderr] 847 |             fn deserialize_identifier<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stderr]     |                                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/lib.rs:852:49
[INFO] [stderr]     |
[INFO] [stderr] 852 |             fn deserialize_ignored_any<V>(self, visitor: V) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
[INFO] [stderr]     |                                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `msg`
[INFO] [stderr]    --> src/lib.rs:896:26
[INFO] [stderr]     |
[INFO] [stderr] 896 |             fn custom<T>(msg: T) -> Self where
[INFO] [stderr]     |                          ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `msg`
[INFO] [stderr]    --> src/lib.rs:904:26
[INFO] [stderr]     |
[INFO] [stderr] 904 |             fn custom<T>(msg: T) -> Self where
[INFO] [stderr]     |                          ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stderr] 
[INFO] [stderr] warning: `jvm-serializable` (lib) generated 76 warnings
[INFO] [stderr] warning: `jvm-serializable` (lib test) generated 76 warnings (76 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/jvm_serializable-bf8a38dd8b9aa940)
[INFO] [stderr]      Running tests/test.rs (/opt/rustwide/target/debug/deps/test-87d3e9d2958c0fe0)
[INFO] [stderr]    Doc-tests jvm-serializable
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2e9b10a32dee219546f2ff76a0831dcd61d29fec944351f31b60bf25579c9153", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e9b10a32dee219546f2ff76a0831dcd61d29fec944351f31b60bf25579c9153", kill_on_drop: false }`
[INFO] [stdout] 2e9b10a32dee219546f2ff76a0831dcd61d29fec944351f31b60bf25579c9153