[INFO] fetching crate serde_hzdata 0.1.1...
[INFO] checking serde_hzdata-0.1.1 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate serde_hzdata 0.1.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate serde_hzdata 0.1.1 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde_hzdata 0.1.1
[INFO] finished tweaking crates.io crate serde_hzdata 0.1.1
[INFO] tweaked toml for crates.io crate serde_hzdata 0.1.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ctor v0.1.21
[INFO] [stderr]   Downloaded minimal-lexical v0.2.1
[INFO] [stderr]   Downloaded nom v7.1.0
[INFO] [stderr]   Downloaded ansi_term v0.12.1
[INFO] [stderr]   Downloaded winapi v0.3.9
[INFO] [stderr]   Downloaded output_vt100 v0.1.2
[INFO] [stderr]   Downloaded diff v0.1.12
[INFO] [stderr]   Downloaded pretty_assertions v1.0.0
[INFO] [stderr]   Downloaded memchr v2.4.1
[INFO] [stderr]   Downloaded thiserror-impl v1.0.30
[INFO] [stderr]   Downloaded thiserror v1.0.30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 50b83bc4a45a73cbade98dec3148840c5d420ef8df0ba9b56606e548e4f83c1f
[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" "50b83bc4a45a73cbade98dec3148840c5d420ef8df0ba9b56606e548e4f83c1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "50b83bc4a45a73cbade98dec3148840c5d420ef8df0ba9b56606e548e4f83c1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50b83bc4a45a73cbade98dec3148840c5d420ef8df0ba9b56606e548e4f83c1f", kill_on_drop: false }`
[INFO] [stdout] 50b83bc4a45a73cbade98dec3148840c5d420ef8df0ba9b56606e548e4f83c1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c28438747968ea63e43c3d710d8afaec03b1d8e0a4416f25525d45656b2ea28
[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" "4c28438747968ea63e43c3d710d8afaec03b1d8e0a4416f25525d45656b2ea28", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking diff v0.1.12
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]     Checking pretty_assertions v1.0.0
[INFO] [stderr]    Compiling nom v7.1.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking serde v1.0.130
[INFO] [stderr]     Checking serde_hzdata v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/de/deserialize.rs:111:34
[INFO] [stdout]     |
[INFO] [stdout] 111 |     fn deserialize_char<V>(self, visitor: V) -> Result<V::Value, Self::Error>
[INFO] [stdout]     |                                  ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/de/deserialize.rs:132:35
[INFO] [stdout]     |
[INFO] [stdout] 132 |     fn deserialize_bytes<V>(self, visitor: V) -> Result<V::Value, Self::Error>
[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/de/deserialize.rs:139:38
[INFO] [stdout]     |
[INFO] [stdout] 139 |     fn deserialize_byte_buf<V>(self, visitor: V) -> Result<V::Value, Self::Error>
[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/de/deserialize.rs:153:34
[INFO] [stdout]     |
[INFO] [stdout] 153 |     fn deserialize_unit<V>(self, visitor: V) -> Result<V::Value, Self::Error>
[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/de/deserialize.rs:162:9
[INFO] [stdout]     |
[INFO] [stdout] 162 |         name: &'static str,
[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/de/deserialize.rs:163:9
[INFO] [stdout]     |
[INFO] [stdout] 163 |         visitor: V,
[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/de/deserialize.rs:173:9
[INFO] [stdout]     |
[INFO] [stdout] 173 |         name: &'static str,
[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/de/deserialize.rs:174:9
[INFO] [stdout]     |
[INFO] [stdout] 174 |         visitor: V,
[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/de/deserialize.rs:231:9
[INFO] [stdout]     |
[INFO] [stdout] 231 |         name: &'static str,
[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/de/deserialize.rs:232:9
[INFO] [stdout]     |
[INFO] [stdout] 232 |         variants: &'static [&'static str],
[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/de/deserialize.rs:233:9
[INFO] [stdout]     |
[INFO] [stdout] 233 |         visitor: V,
[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/de/deserialize.rs:250:41
[INFO] [stdout]     |
[INFO] [stdout] 250 |     fn deserialize_ignored_any<V>(self, visitor: V) -> Result<V::Value, Self::Error>
[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/de/value.rs:181:34
[INFO] [stdout]     |
[INFO] [stdout] 181 |     fn deserialize_char<V>(self, visitor: V) -> Result<V::Value, Self::Error>
[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/de/value.rs:188:35
[INFO] [stdout]     |
[INFO] [stdout] 188 |     fn deserialize_bytes<V>(self, visitor: V) -> Result<V::Value, Self::Error>
[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/de/value.rs:195:38
[INFO] [stdout]     |
[INFO] [stdout] 195 |     fn deserialize_byte_buf<V>(self, visitor: V) -> Result<V::Value, Self::Error>
[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/de/value.rs:213:34
[INFO] [stdout]     |
[INFO] [stdout] 213 |     fn deserialize_unit<V>(self, visitor: V) -> Result<V::Value, Self::Error>
[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/de/value.rs:222:9
[INFO] [stdout]     |
[INFO] [stdout] 222 |         name: &'static str,
[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/de/value.rs:223:9
[INFO] [stdout]     |
[INFO] [stdout] 223 |         visitor: V,
[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/de/value.rs:233:9
[INFO] [stdout]     |
[INFO] [stdout] 233 |         name: &'static str,
[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/de/value.rs:234:9
[INFO] [stdout]     |
[INFO] [stdout] 234 |         visitor: V,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/de/value.rs:249:35
[INFO] [stdout]     |
[INFO] [stdout] 249 |     fn deserialize_tuple<V>(self, len: usize, visitor: V) -> Result<V::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/de/value.rs:249:47
[INFO] [stdout]     |
[INFO] [stdout] 249 |     fn deserialize_tuple<V>(self, len: usize, visitor: V) -> Result<V::Value, Self::Error>
[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/de/value.rs:258:9
[INFO] [stdout]     |
[INFO] [stdout] 258 |         name: &'static str,
[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/de/value.rs:259:9
[INFO] [stdout]     |
[INFO] [stdout] 259 |         len: usize,
[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/de/value.rs:260:9
[INFO] [stdout]     |
[INFO] [stdout] 260 |         visitor: V,
[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/de/value.rs:289:9
[INFO] [stdout]     |
[INFO] [stdout] 289 |         name: &'static str,
[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/de/value.rs:290:9
[INFO] [stdout]     |
[INFO] [stdout] 290 |         variants: &'static [&'static str],
[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/de/value.rs:291:9
[INFO] [stdout]     |
[INFO] [stdout] 291 |         visitor: V,
[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/de/value.rs:299:40
[INFO] [stdout]     |
[INFO] [stdout] 299 |     fn deserialize_identifier<V>(self, visitor: V) -> Result<V::Value, Self::Error>
[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/de/value.rs:306:41
[INFO] [stdout]     |
[INFO] [stdout] 306 |     fn deserialize_ignored_any<V>(self, visitor: V) -> Result<V::Value, Self::Error>
[INFO] [stdout]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/ser/serialize.rs:113:30
[INFO] [stdout]     |
[INFO] [stdout] 113 |     fn serialize_bytes(self, v: &[u8]) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout]     |                              ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/ser/value.rs:122:29
[INFO] [stdout]     |
[INFO] [stdout] 122 |     fn serialize_char(self, v: char) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout]     |                             ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/ser/value.rs:130:30
[INFO] [stdout]     |
[INFO] [stdout] 130 |     fn serialize_bytes(self, v: &[u8]) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout]     |                              ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/ser/value.rs:149:36
[INFO] [stdout]     |
[INFO] [stdout] 149 |     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/ser/value.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 |         name: &'static str,
[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/ser/value.rs:156:9
[INFO] [stdout]     |
[INFO] [stdout] 156 |         variant_index: u32,
[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/ser/value.rs:157:9
[INFO] [stdout]     |
[INFO] [stdout] 157 |         variant: &'static str,
[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/ser/value.rs:164:9
[INFO] [stdout]     |
[INFO] [stdout] 164 |         name: &'static str,
[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/ser/value.rs:165:9
[INFO] [stdout]     |
[INFO] [stdout] 165 |         value: &T,
[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/ser/value.rs:175:9
[INFO] [stdout]     |
[INFO] [stdout] 175 |         name: &'static str,
[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/ser/value.rs:176:9
[INFO] [stdout]     |
[INFO] [stdout] 176 |         variant_index: u32,
[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/ser/value.rs:177:9
[INFO] [stdout]     |
[INFO] [stdout] 177 |         variant: &'static str,
[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/ser/value.rs:178:9
[INFO] [stdout]     |
[INFO] [stdout] 178 |         value: &T,
[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/ser/value.rs:186:28
[INFO] [stdout]     |
[INFO] [stdout] 186 |     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: `visitor`
[INFO] [stdout]    --> src/de/deserialize.rs:111:34
[INFO] [stdout]     |
[INFO] [stdout] 111 |     fn deserialize_char<V>(self, visitor: V) -> Result<V::Value, Self::Error>
[INFO] [stdout]     |                                  ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/de/deserialize.rs:132:35
[INFO] [stdout]     |
[INFO] [stdout] 132 |     fn deserialize_bytes<V>(self, visitor: V) -> Result<V::Value, Self::Error>
[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/de/deserialize.rs:139:38
[INFO] [stdout]     |
[INFO] [stdout] 139 |     fn deserialize_byte_buf<V>(self, visitor: V) -> Result<V::Value, Self::Error>
[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/de/deserialize.rs:153:34
[INFO] [stdout]     |
[INFO] [stdout] 153 |     fn deserialize_unit<V>(self, visitor: V) -> Result<V::Value, Self::Error>
[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/de/deserialize.rs:162:9
[INFO] [stdout]     |
[INFO] [stdout] 162 |         name: &'static str,
[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/de/deserialize.rs:163:9
[INFO] [stdout]     |
[INFO] [stdout] 163 |         visitor: V,
[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/de/deserialize.rs:173:9
[INFO] [stdout]     |
[INFO] [stdout] 173 |         name: &'static str,
[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/de/deserialize.rs:174:9
[INFO] [stdout]     |
[INFO] [stdout] 174 |         visitor: V,
[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/de/deserialize.rs:231:9
[INFO] [stdout]     |
[INFO] [stdout] 231 |         name: &'static str,
[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/de/deserialize.rs:232:9
[INFO] [stdout]     |
[INFO] [stdout] 232 |         variants: &'static [&'static str],
[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/de/deserialize.rs:233:9
[INFO] [stdout]     |
[INFO] [stdout] 233 |         visitor: V,
[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/de/deserialize.rs:250:41
[INFO] [stdout]     |
[INFO] [stdout] 250 |     fn deserialize_ignored_any<V>(self, visitor: V) -> Result<V::Value, Self::Error>
[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/de/value.rs:181:34
[INFO] [stdout]     |
[INFO] [stdout] 181 |     fn deserialize_char<V>(self, visitor: V) -> Result<V::Value, Self::Error>
[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/de/value.rs:188:35
[INFO] [stdout]     |
[INFO] [stdout] 188 |     fn deserialize_bytes<V>(self, visitor: V) -> Result<V::Value, Self::Error>
[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/de/value.rs:195:38
[INFO] [stdout]     |
[INFO] [stdout] 195 |     fn deserialize_byte_buf<V>(self, visitor: V) -> Result<V::Value, Self::Error>
[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/de/value.rs:213:34
[INFO] [stdout]     |
[INFO] [stdout] 213 |     fn deserialize_unit<V>(self, visitor: V) -> Result<V::Value, Self::Error>
[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/de/value.rs:222:9
[INFO] [stdout]     |
[INFO] [stdout] 222 |         name: &'static str,
[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/de/value.rs:223:9
[INFO] [stdout]     |
[INFO] [stdout] 223 |         visitor: V,
[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/de/value.rs:233:9
[INFO] [stdout]     |
[INFO] [stdout] 233 |         name: &'static str,
[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/de/value.rs:234:9
[INFO] [stdout]     |
[INFO] [stdout] 234 |         visitor: V,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/de/value.rs:249:35
[INFO] [stdout]     |
[INFO] [stdout] 249 |     fn deserialize_tuple<V>(self, len: usize, visitor: V) -> Result<V::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/de/value.rs:249:47
[INFO] [stdout]     |
[INFO] [stdout] 249 |     fn deserialize_tuple<V>(self, len: usize, visitor: V) -> Result<V::Value, Self::Error>
[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/de/value.rs:258:9
[INFO] [stdout]     |
[INFO] [stdout] 258 |         name: &'static str,
[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/de/value.rs:259:9
[INFO] [stdout]     |
[INFO] [stdout] 259 |         len: usize,
[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/de/value.rs:260:9
[INFO] [stdout]     |
[INFO] [stdout] 260 |         visitor: V,
[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/de/value.rs:289:9
[INFO] [stdout]     |
[INFO] [stdout] 289 |         name: &'static str,
[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/de/value.rs:290:9
[INFO] [stdout]     |
[INFO] [stdout] 290 |         variants: &'static [&'static str],
[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/de/value.rs:291:9
[INFO] [stdout]     |
[INFO] [stdout] 291 |         visitor: V,
[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/de/value.rs:299:40
[INFO] [stdout]     |
[INFO] [stdout] 299 |     fn deserialize_identifier<V>(self, visitor: V) -> Result<V::Value, Self::Error>
[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/de/value.rs:306:41
[INFO] [stdout]     |
[INFO] [stdout] 306 |     fn deserialize_ignored_any<V>(self, visitor: V) -> Result<V::Value, Self::Error>
[INFO] [stdout]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/ser/serialize.rs:113:30
[INFO] [stdout]     |
[INFO] [stdout] 113 |     fn serialize_bytes(self, v: &[u8]) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout]     |                              ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/ser/value.rs:122:29
[INFO] [stdout]     |
[INFO] [stdout] 122 |     fn serialize_char(self, v: char) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout]     |                             ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/ser/value.rs:130:30
[INFO] [stdout]     |
[INFO] [stdout] 130 |     fn serialize_bytes(self, v: &[u8]) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout]     |                              ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/ser/value.rs:149:36
[INFO] [stdout]     |
[INFO] [stdout] 149 |     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/ser/value.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 |         name: &'static str,
[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/ser/value.rs:156:9
[INFO] [stdout]     |
[INFO] [stdout] 156 |         variant_index: u32,
[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/ser/value.rs:157:9
[INFO] [stdout]     |
[INFO] [stdout] 157 |         variant: &'static str,
[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/ser/value.rs:164:9
[INFO] [stdout]     |
[INFO] [stdout] 164 |         name: &'static str,
[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/ser/value.rs:165:9
[INFO] [stdout]     |
[INFO] [stdout] 165 |         value: &T,
[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/ser/value.rs:175:9
[INFO] [stdout]     |
[INFO] [stdout] 175 |         name: &'static str,
[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/ser/value.rs:176:9
[INFO] [stdout]     |
[INFO] [stdout] 176 |         variant_index: u32,
[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/ser/value.rs:177:9
[INFO] [stdout]     |
[INFO] [stdout] 177 |         variant: &'static str,
[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/ser/value.rs:178:9
[INFO] [stdout]     |
[INFO] [stdout] 178 |         value: &T,
[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/ser/value.rs:186:28
[INFO] [stdout]     |
[INFO] [stdout] 186 |     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: field is never read: `pretty`
[INFO] [stdout]   --> src/ser/serialize.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub(crate) pretty: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `len`
[INFO] [stdout]   --> src/ser/serialize_map.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     len: Option<usize>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `len`
[INFO] [stdout]   --> src/ser/serialize_seq.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     len: Option<usize>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 47 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pretty`
[INFO] [stdout]   --> src/ser/serialize.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub(crate) pretty: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `len`
[INFO] [stdout]   --> src/ser/serialize_map.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     len: Option<usize>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `len`
[INFO] [stdout]   --> src/ser/serialize_seq.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     len: Option<usize>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 47 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.09s
[INFO] running `Command { std: "docker" "inspect" "4c28438747968ea63e43c3d710d8afaec03b1d8e0a4416f25525d45656b2ea28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c28438747968ea63e43c3d710d8afaec03b1d8e0a4416f25525d45656b2ea28", kill_on_drop: false }`
[INFO] [stdout] 4c28438747968ea63e43c3d710d8afaec03b1d8e0a4416f25525d45656b2ea28