[INFO] cloning repository https://github.com/aidyfeng/my-sqldb-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aidyfeng/my-sqldb-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faidyfeng%2Fmy-sqldb-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faidyfeng%2Fmy-sqldb-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5b64fe09be2183bcc65af83c8b911491436fa7c3
[INFO] testing aidyfeng/my-sqldb-rs against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faidyfeng%2Fmy-sqldb-rs" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/aidyfeng/my-sqldb-rs
[INFO] finished tweaking git repo https://github.com/aidyfeng/my-sqldb-rs
[INFO] tweaked toml for git repo https://github.com/aidyfeng/my-sqldb-rs written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/aidyfeng/my-sqldb-rs on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/aidyfeng/my-sqldb-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 752d059d20593dcb597b292c897a53a75a8d01ca704dd761a766d36fca1c4406
[INFO] running `Command { std: "docker" "start" "-a" "752d059d20593dcb597b292c897a53a75a8d01ca704dd761a766d36fca1c4406", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "752d059d20593dcb597b292c897a53a75a8d01ca704dd761a766d36fca1c4406", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "752d059d20593dcb597b292c897a53a75a8d01ca704dd761a766d36fca1c4406", kill_on_drop: false }`
[INFO] [stdout] 752d059d20593dcb597b292c897a53a75a8d01ca704dd761a766d36fca1c4406
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d0847517732015569caa0517e45beefd85ee327271592daa4207df87374c4d52
[INFO] running `Command { std: "docker" "start" "-a" "d0847517732015569caa0517e45beefd85ee327271592daa4207df87374c4d52", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]    Compiling rustix v0.38.42
[INFO] [stderr]    Compiling serde v1.0.215
[INFO] [stderr]    Compiling bitflags v2.6.0
[INFO] [stderr]    Compiling linux-raw-sys v0.4.14
[INFO] [stderr]    Compiling once_cell v1.20.2
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.90
[INFO] [stderr]    Compiling serde_derive v1.0.215
[INFO] [stderr]    Compiling fs4 v0.12.0
[INFO] [stderr]    Compiling tempfile v3.14.0
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling serde_bytes v0.11.15
[INFO] [stderr]    Compiling sqldb-rs-fzr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/storage/keycode.rs:43:29
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn serialize_bool(self, v: bool) -> Result<()> {
[INFO] [stdout]    |                             ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/storage/keycode.rs:47:27
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn serialize_i8(self, v: i8) -> Result<()> {
[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/storage/keycode.rs:51:28
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn serialize_i16(self, v: i16) -> Result<()> {
[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/storage/keycode.rs:55:28
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn serialize_i32(self, v: i32) -> Result<()> {
[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/storage/keycode.rs:59:28
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn serialize_i64(self, v: i64) -> Result<()> {
[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/storage/keycode.rs:63:27
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn serialize_u8(self, v: u8) -> Result<()> {
[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/storage/keycode.rs:67:28
[INFO] [stdout]    |
[INFO] [stdout] 67 |     fn serialize_u16(self, v: u16) -> Result<()> {
[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/storage/keycode.rs:71:28
[INFO] [stdout]    |
[INFO] [stdout] 71 |     fn serialize_u32(self, v: u32) -> Result<()> {
[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/storage/keycode.rs:80:28
[INFO] [stdout]    |
[INFO] [stdout] 80 |     fn serialize_f32(self, v: f32) -> Result<()> {
[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/storage/keycode.rs:84:28
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn serialize_f64(self, v: f64) -> Result<()> {
[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/storage/keycode.rs:88:29
[INFO] [stdout]    |
[INFO] [stdout] 88 |     fn serialize_char(self, v: char) -> Result<()> {
[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/storage/keycode.rs:92:28
[INFO] [stdout]    |
[INFO] [stdout] 92 |     fn serialize_str(self, v: &str) -> Result<()> {
[INFO] [stdout]    |                            ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/storage/keycode.rs:115:32
[INFO] [stdout]     |
[INFO] [stdout] 115 |     fn serialize_some<T>(self, value: &T) -> Result<()>
[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/storage/keycode.rs:126:36
[INFO] [stdout]     |
[INFO] [stdout] 126 |     fn serialize_unit_struct(self, name: &'static str) -> Result<()> {
[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/storage/keycode.rs:133:9
[INFO] [stdout]     |
[INFO] [stdout] 133 |         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`
[INFO] [stdout]    --> src/storage/keycode.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |         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/storage/keycode.rs:141:42
[INFO] [stdout]     |
[INFO] [stdout] 141 |     fn serialize_newtype_struct<T>(self, name: &'static str, value: &T) -> Result<()>
[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/storage/keycode.rs:141:62
[INFO] [stdout]     |
[INFO] [stdout] 141 |     fn serialize_newtype_struct<T>(self, name: &'static str, value: &T) -> Result<()>
[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/storage/keycode.rs:164:28
[INFO] [stdout]     |
[INFO] [stdout] 164 |     fn serialize_seq(self, len: Option<usize>) -> Result<Self::SerializeSeq> {
[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/storage/keycode.rs:168:30
[INFO] [stdout]     |
[INFO] [stdout] 168 |     fn serialize_tuple(self, len: usize) -> Result<Self::SerializeTuple> {
[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/storage/keycode.rs:174:9
[INFO] [stdout]     |
[INFO] [stdout] 174 |         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/storage/keycode.rs:175:9
[INFO] [stdout]     |
[INFO] [stdout] 175 |         len: usize,
[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/storage/keycode.rs:186:9
[INFO] [stdout]     |
[INFO] [stdout] 186 |         len: usize,
[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/storage/keycode.rs:192:28
[INFO] [stdout]     |
[INFO] [stdout] 192 |     fn serialize_map(self, len: Option<usize>) -> Result<Self::SerializeMap> {
[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/storage/keycode.rs:196:31
[INFO] [stdout]     |
[INFO] [stdout] 196 |     fn serialize_struct(self, name: &'static str, len: usize) -> Result<Self::SerializeStruct> {
[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/storage/keycode.rs:196:51
[INFO] [stdout]     |
[INFO] [stdout] 196 |     fn serialize_struct(self, name: &'static str, len: usize) -> Result<Self::SerializeStruct> {
[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/storage/keycode.rs:202:9
[INFO] [stdout]     |
[INFO] [stdout] 202 |         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/storage/keycode.rs:203:9
[INFO] [stdout]     |
[INFO] [stdout] 203 |         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/storage/keycode.rs:204:9
[INFO] [stdout]     |
[INFO] [stdout] 204 |         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: `len`
[INFO] [stdout]    --> src/storage/keycode.rs:205:9
[INFO] [stdout]     |
[INFO] [stdout] 205 |         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/storage/keycode.rs:300:33
[INFO] [stdout]     |
[INFO] [stdout] 300 |     fn deserialize_any<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:307:34
[INFO] [stdout]     |
[INFO] [stdout] 307 |     fn deserialize_bool<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:314:32
[INFO] [stdout]     |
[INFO] [stdout] 314 |     fn deserialize_i8<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:321:33
[INFO] [stdout]     |
[INFO] [stdout] 321 |     fn deserialize_i16<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:328:33
[INFO] [stdout]     |
[INFO] [stdout] 328 |     fn deserialize_i32<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:335:33
[INFO] [stdout]     |
[INFO] [stdout] 335 |     fn deserialize_i64<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:342:32
[INFO] [stdout]     |
[INFO] [stdout] 342 |     fn deserialize_u8<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:349:33
[INFO] [stdout]     |
[INFO] [stdout] 349 |     fn deserialize_u16<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:356:33
[INFO] [stdout]     |
[INFO] [stdout] 356 |     fn deserialize_u32<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:372:33
[INFO] [stdout]     |
[INFO] [stdout] 372 |     fn deserialize_f32<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:379:33
[INFO] [stdout]     |
[INFO] [stdout] 379 |     fn deserialize_f64<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:386:34
[INFO] [stdout]     |
[INFO] [stdout] 386 |     fn deserialize_char<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:393:33
[INFO] [stdout]     |
[INFO] [stdout] 393 |     fn deserialize_str<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:400:36
[INFO] [stdout]     |
[INFO] [stdout] 400 |     fn deserialize_string<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:421:36
[INFO] [stdout]     |
[INFO] [stdout] 421 |     fn deserialize_option<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:428:34
[INFO] [stdout]     |
[INFO] [stdout] 428 |     fn deserialize_unit<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:435:41
[INFO] [stdout]     |
[INFO] [stdout] 435 |     fn deserialize_unit_struct<V>(self, name: &'static str, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:435:61
[INFO] [stdout]     |
[INFO] [stdout] 435 |     fn deserialize_unit_struct<V>(self, name: &'static str, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:442:44
[INFO] [stdout]     |
[INFO] [stdout] 442 |     fn deserialize_newtype_struct<V>(self, name: &'static str, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:442:64
[INFO] [stdout]     |
[INFO] [stdout] 442 |     fn deserialize_newtype_struct<V>(self, name: &'static str, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:456:35
[INFO] [stdout]     |
[INFO] [stdout] 456 |     fn deserialize_tuple<V>(self, len: usize, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:465:9
[INFO] [stdout]     |
[INFO] [stdout] 465 |         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/storage/keycode.rs:466:9
[INFO] [stdout]     |
[INFO] [stdout] 466 |         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/storage/keycode.rs:467:9
[INFO] [stdout]     |
[INFO] [stdout] 467 |         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/storage/keycode.rs:475:33
[INFO] [stdout]     |
[INFO] [stdout] 475 |     fn deserialize_map<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:484:9
[INFO] [stdout]     |
[INFO] [stdout] 484 |         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: `fields`
[INFO] [stdout]    --> src/storage/keycode.rs:485:9
[INFO] [stdout]     |
[INFO] [stdout] 485 |         fields: &'static [&'static str],
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_fields`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/storage/keycode.rs:486:9
[INFO] [stdout]     |
[INFO] [stdout] 486 |         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/storage/keycode.rs:496:9
[INFO] [stdout]     |
[INFO] [stdout] 496 |         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/storage/keycode.rs:497:9
[INFO] [stdout]     |
[INFO] [stdout] 497 |         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/storage/keycode.rs:506:40
[INFO] [stdout]     |
[INFO] [stdout] 506 |     fn deserialize_identifier<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:513:41
[INFO] [stdout]     |
[INFO] [stdout] 513 |     fn deserialize_ignored_any<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:562:31
[INFO] [stdout]     |
[INFO] [stdout] 562 |     fn tuple_variant<V>(self, len: usize, visitor: V) -> Result<V::Value>
[INFO] [stdout]     |                               ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fields`
[INFO] [stdout]    --> src/storage/keycode.rs:571:9
[INFO] [stdout]     |
[INFO] [stdout] 571 |         fields: &'static [&'static str],
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_fields`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/storage/keycode.rs:572:9
[INFO] [stdout]     |
[INFO] [stdout] 572 |         visitor: V,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `KVEngine` is never constructed
[INFO] [stdout]   --> src/sql/engine/kv.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct KVEngine<E: StorageEngin> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/sql/engine/kv.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl<E: StorageEngin> KVEngine<E> {
[INFO] [stdout]    | --------------------------------- associated function in this implementation
[INFO] [stdout] 24 |     pub fn new(engine: E) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `KVTransaction` is never constructed
[INFO] [stdout]   --> src/sql/engine/kv.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct KVTransaction<E: StorageEngin> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/sql/engine/kv.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 44 | impl<E: StorageEngin> KVTransaction<E> {
[INFO] [stdout]    | -------------------------------------- associated function in this implementation
[INFO] [stdout] 45 |     pub fn new(txn: storage::mvcc::MvccTransaction<E>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Key` is never used
[INFO] [stdout]    --> src/sql/engine/kv.rs:136:6
[INFO] [stdout]     |
[INFO] [stdout] 136 | enum Key {
[INFO] [stdout]     |      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `KeyPrefix` is never used
[INFO] [stdout]    --> src/sql/engine/kv.rs:142:6
[INFO] [stdout]     |
[INFO] [stdout] 142 | enum KeyPrefix {
[INFO] [stdout]     |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.47s
[INFO] running `Command { std: "docker" "inspect" "d0847517732015569caa0517e45beefd85ee327271592daa4207df87374c4d52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0847517732015569caa0517e45beefd85ee327271592daa4207df87374c4d52", kill_on_drop: false }`
[INFO] [stdout] d0847517732015569caa0517e45beefd85ee327271592daa4207df87374c4d52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8746abf8c173d287d7ce841e2ece54e0697a5ff2874009c7dd528ca0d0ea775d
[INFO] running `Command { std: "docker" "start" "-a" "8746abf8c173d287d7ce841e2ece54e0697a5ff2874009c7dd528ca0d0ea775d", kill_on_drop: false }`
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/storage/keycode.rs:43:29
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn serialize_bool(self, v: bool) -> Result<()> {
[INFO] [stdout]    |                             ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/storage/keycode.rs:47:27
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn serialize_i8(self, v: i8) -> Result<()> {
[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/storage/keycode.rs:51:28
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn serialize_i16(self, v: i16) -> Result<()> {
[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/storage/keycode.rs:55:28
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn serialize_i32(self, v: i32) -> Result<()> {
[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/storage/keycode.rs:59:28
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn serialize_i64(self, v: i64) -> Result<()> {
[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/storage/keycode.rs:63:27
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn serialize_u8(self, v: u8) -> Result<()> {
[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/storage/keycode.rs:67:28
[INFO] [stdout]    |
[INFO] [stdout] 67 |     fn serialize_u16(self, v: u16) -> Result<()> {
[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/storage/keycode.rs:71:28
[INFO] [stdout]    |
[INFO] [stdout] 71 |     fn serialize_u32(self, v: u32) -> Result<()> {
[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/storage/keycode.rs:80:28
[INFO] [stdout]    |
[INFO] [stdout] 80 |     fn serialize_f32(self, v: f32) -> Result<()> {
[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/storage/keycode.rs:84:28
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn serialize_f64(self, v: f64) -> Result<()> {
[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/storage/keycode.rs:88:29
[INFO] [stdout]    |
[INFO] [stdout] 88 |     fn serialize_char(self, v: char) -> Result<()> {
[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/storage/keycode.rs:92:28
[INFO] [stdout]    |
[INFO] [stdout] 92 |     fn serialize_str(self, v: &str) -> Result<()> {
[INFO] [stdout]    |                            ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/storage/keycode.rs:115:32
[INFO] [stdout]     |
[INFO] [stdout] 115 |     fn serialize_some<T>(self, value: &T) -> Result<()>
[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/storage/keycode.rs:126:36
[INFO] [stdout]     |
[INFO] [stdout] 126 |     fn serialize_unit_struct(self, name: &'static str) -> Result<()> {
[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/storage/keycode.rs:133:9
[INFO] [stdout]     |
[INFO] [stdout] 133 |         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`
[INFO] [stdout]    --> src/storage/keycode.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |         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/storage/keycode.rs:141:42
[INFO] [stdout]     |
[INFO] [stdout] 141 |     fn serialize_newtype_struct<T>(self, name: &'static str, value: &T) -> Result<()>
[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/storage/keycode.rs:141:62
[INFO] [stdout]     |
[INFO] [stdout] 141 |     fn serialize_newtype_struct<T>(self, name: &'static str, value: &T) -> Result<()>
[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/storage/keycode.rs:164:28
[INFO] [stdout]     |
[INFO] [stdout] 164 |     fn serialize_seq(self, len: Option<usize>) -> Result<Self::SerializeSeq> {
[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/storage/keycode.rs:168:30
[INFO] [stdout]     |
[INFO] [stdout] 168 |     fn serialize_tuple(self, len: usize) -> Result<Self::SerializeTuple> {
[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/storage/keycode.rs:174:9
[INFO] [stdout]     |
[INFO] [stdout] 174 |         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/storage/keycode.rs:175:9
[INFO] [stdout]     |
[INFO] [stdout] 175 |         len: usize,
[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/storage/keycode.rs:186:9
[INFO] [stdout]     |
[INFO] [stdout] 186 |         len: usize,
[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/storage/keycode.rs:192:28
[INFO] [stdout]     |
[INFO] [stdout] 192 |     fn serialize_map(self, len: Option<usize>) -> Result<Self::SerializeMap> {
[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/storage/keycode.rs:196:31
[INFO] [stdout]     |
[INFO] [stdout] 196 |     fn serialize_struct(self, name: &'static str, len: usize) -> Result<Self::SerializeStruct> {
[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/storage/keycode.rs:196:51
[INFO] [stdout]     |
[INFO] [stdout] 196 |     fn serialize_struct(self, name: &'static str, len: usize) -> Result<Self::SerializeStruct> {
[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/storage/keycode.rs:202:9
[INFO] [stdout]     |
[INFO] [stdout] 202 |         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/storage/keycode.rs:203:9
[INFO] [stdout]     |
[INFO] [stdout] 203 |         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/storage/keycode.rs:204:9
[INFO] [stdout]     |
[INFO] [stdout] 204 |         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: `len`
[INFO] [stdout]    --> src/storage/keycode.rs:205:9
[INFO] [stdout]     |
[INFO] [stdout] 205 |         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/storage/keycode.rs:300:33
[INFO] [stdout]     |
[INFO] [stdout] 300 |     fn deserialize_any<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:307:34
[INFO] [stdout]     |
[INFO] [stdout] 307 |     fn deserialize_bool<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:314:32
[INFO] [stdout]     |
[INFO] [stdout] 314 |     fn deserialize_i8<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:321:33
[INFO] [stdout]     |
[INFO] [stdout] 321 |     fn deserialize_i16<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:328:33
[INFO] [stdout]     |
[INFO] [stdout] 328 |     fn deserialize_i32<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:335:33
[INFO] [stdout]     |
[INFO] [stdout] 335 |     fn deserialize_i64<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:342:32
[INFO] [stdout]     |
[INFO] [stdout] 342 |     fn deserialize_u8<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:349:33
[INFO] [stdout]     |
[INFO] [stdout] 349 |     fn deserialize_u16<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:356:33
[INFO] [stdout]     |
[INFO] [stdout] 356 |     fn deserialize_u32<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:372:33
[INFO] [stdout]     |
[INFO] [stdout] 372 |     fn deserialize_f32<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:379:33
[INFO] [stdout]     |
[INFO] [stdout] 379 |     fn deserialize_f64<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:386:34
[INFO] [stdout]     |
[INFO] [stdout] 386 |     fn deserialize_char<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:393:33
[INFO] [stdout]     |
[INFO] [stdout] 393 |     fn deserialize_str<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:400:36
[INFO] [stdout]     |
[INFO] [stdout] 400 |     fn deserialize_string<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:421:36
[INFO] [stdout]     |
[INFO] [stdout] 421 |     fn deserialize_option<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:428:34
[INFO] [stdout]     |
[INFO] [stdout] 428 |     fn deserialize_unit<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:435:41
[INFO] [stdout]     |
[INFO] [stdout] 435 |     fn deserialize_unit_struct<V>(self, name: &'static str, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:435:61
[INFO] [stdout]     |
[INFO] [stdout] 435 |     fn deserialize_unit_struct<V>(self, name: &'static str, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:442:44
[INFO] [stdout]     |
[INFO] [stdout] 442 |     fn deserialize_newtype_struct<V>(self, name: &'static str, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:442:64
[INFO] [stdout]     |
[INFO] [stdout] 442 |     fn deserialize_newtype_struct<V>(self, name: &'static str, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:456:35
[INFO] [stdout]     |
[INFO] [stdout] 456 |     fn deserialize_tuple<V>(self, len: usize, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:465:9
[INFO] [stdout]     |
[INFO] [stdout] 465 |         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/storage/keycode.rs:466:9
[INFO] [stdout]     |
[INFO] [stdout] 466 |         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/storage/keycode.rs:467:9
[INFO] [stdout]     |
[INFO] [stdout] 467 |         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/storage/keycode.rs:475:33
[INFO] [stdout]     |
[INFO] [stdout] 475 |     fn deserialize_map<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:484:9
[INFO] [stdout]     |
[INFO] [stdout] 484 |         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: `fields`
[INFO] [stdout]    --> src/storage/keycode.rs:485:9
[INFO] [stdout]     |
[INFO] [stdout] 485 |         fields: &'static [&'static str],
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_fields`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/storage/keycode.rs:486:9
[INFO] [stdout]     |
[INFO] [stdout] 486 |         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/storage/keycode.rs:496:9
[INFO] [stdout]     |
[INFO] [stdout] 496 |         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/storage/keycode.rs:497:9
[INFO] [stdout]     |
[INFO] [stdout] 497 |         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/storage/keycode.rs:506:40
[INFO] [stdout]     |
[INFO] [stdout] 506 |     fn deserialize_identifier<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:513:41
[INFO] [stdout]     |
[INFO] [stdout] 513 |     fn deserialize_ignored_any<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:562:31
[INFO] [stdout]     |
[INFO] [stdout] 562 |     fn tuple_variant<V>(self, len: usize, visitor: V) -> Result<V::Value>
[INFO] [stdout]     |                               ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fields`
[INFO] [stdout]    --> src/storage/keycode.rs:571:9
[INFO] [stdout]     |
[INFO] [stdout] 571 |         fields: &'static [&'static str],
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_fields`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/storage/keycode.rs:572:9
[INFO] [stdout]     |
[INFO] [stdout] 572 |         visitor: V,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `KVEngine` is never constructed
[INFO] [stdout]   --> src/sql/engine/kv.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct KVEngine<E: StorageEngin> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/sql/engine/kv.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl<E: StorageEngin> KVEngine<E> {
[INFO] [stdout]    | --------------------------------- associated function in this implementation
[INFO] [stdout] 24 |     pub fn new(engine: E) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `KVTransaction` is never constructed
[INFO] [stdout]   --> src/sql/engine/kv.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct KVTransaction<E: StorageEngin> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/sql/engine/kv.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 44 | impl<E: StorageEngin> KVTransaction<E> {
[INFO] [stdout]    | -------------------------------------- associated function in this implementation
[INFO] [stdout] 45 |     pub fn new(txn: storage::mvcc::MvccTransaction<E>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Key` is never used
[INFO] [stdout]    --> src/sql/engine/kv.rs:136:6
[INFO] [stdout]     |
[INFO] [stdout] 136 | enum Key {
[INFO] [stdout]     |      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `KeyPrefix` is never used
[INFO] [stdout]    --> src/sql/engine/kv.rs:142:6
[INFO] [stdout]     |
[INFO] [stdout] 142 | enum KeyPrefix {
[INFO] [stdout]     |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling sqldb-rs-fzr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `result`
[INFO] [stdout]    --> src/storage/mvcc.rs:339:35
[INFO] [stdout]     |
[INFO] [stdout] 339 |     use std::{fs::remove_dir_all, result};
[INFO] [stdout]     |                                   ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]    --> src/storage/mvcc.rs:342:17
[INFO] [stdout]     |
[INFO] [stdout] 342 |         error::{self, Error, Result},
[INFO] [stdout]     |                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]    --> src/storage/keycode.rs:587:16
[INFO] [stdout]     |
[INFO] [stdout] 587 |         mvcc::{self, MvccKey, MvccKeyPrefix},
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/storage/keycode.rs:43:29
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn serialize_bool(self, v: bool) -> Result<()> {
[INFO] [stdout]    |                             ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/storage/keycode.rs:47:27
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn serialize_i8(self, v: i8) -> Result<()> {
[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/storage/keycode.rs:51:28
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn serialize_i16(self, v: i16) -> Result<()> {
[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/storage/keycode.rs:55:28
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn serialize_i32(self, v: i32) -> Result<()> {
[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/storage/keycode.rs:59:28
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn serialize_i64(self, v: i64) -> Result<()> {
[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/storage/keycode.rs:63:27
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn serialize_u8(self, v: u8) -> Result<()> {
[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/storage/keycode.rs:67:28
[INFO] [stdout]    |
[INFO] [stdout] 67 |     fn serialize_u16(self, v: u16) -> Result<()> {
[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/storage/keycode.rs:71:28
[INFO] [stdout]    |
[INFO] [stdout] 71 |     fn serialize_u32(self, v: u32) -> Result<()> {
[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/storage/keycode.rs:80:28
[INFO] [stdout]    |
[INFO] [stdout] 80 |     fn serialize_f32(self, v: f32) -> Result<()> {
[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/storage/keycode.rs:84:28
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn serialize_f64(self, v: f64) -> Result<()> {
[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/storage/keycode.rs:88:29
[INFO] [stdout]    |
[INFO] [stdout] 88 |     fn serialize_char(self, v: char) -> Result<()> {
[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/storage/keycode.rs:92:28
[INFO] [stdout]    |
[INFO] [stdout] 92 |     fn serialize_str(self, v: &str) -> Result<()> {
[INFO] [stdout]    |                            ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/storage/keycode.rs:115:32
[INFO] [stdout]     |
[INFO] [stdout] 115 |     fn serialize_some<T>(self, value: &T) -> Result<()>
[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/storage/keycode.rs:126:36
[INFO] [stdout]     |
[INFO] [stdout] 126 |     fn serialize_unit_struct(self, name: &'static str) -> Result<()> {
[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/storage/keycode.rs:133:9
[INFO] [stdout]     |
[INFO] [stdout] 133 |         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`
[INFO] [stdout]    --> src/storage/keycode.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |         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/storage/keycode.rs:141:42
[INFO] [stdout]     |
[INFO] [stdout] 141 |     fn serialize_newtype_struct<T>(self, name: &'static str, value: &T) -> Result<()>
[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/storage/keycode.rs:141:62
[INFO] [stdout]     |
[INFO] [stdout] 141 |     fn serialize_newtype_struct<T>(self, name: &'static str, value: &T) -> Result<()>
[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/storage/keycode.rs:164:28
[INFO] [stdout]     |
[INFO] [stdout] 164 |     fn serialize_seq(self, len: Option<usize>) -> Result<Self::SerializeSeq> {
[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/storage/keycode.rs:168:30
[INFO] [stdout]     |
[INFO] [stdout] 168 |     fn serialize_tuple(self, len: usize) -> Result<Self::SerializeTuple> {
[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/storage/keycode.rs:174:9
[INFO] [stdout]     |
[INFO] [stdout] 174 |         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/storage/keycode.rs:175:9
[INFO] [stdout]     |
[INFO] [stdout] 175 |         len: usize,
[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/storage/keycode.rs:186:9
[INFO] [stdout]     |
[INFO] [stdout] 186 |         len: usize,
[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/storage/keycode.rs:192:28
[INFO] [stdout]     |
[INFO] [stdout] 192 |     fn serialize_map(self, len: Option<usize>) -> Result<Self::SerializeMap> {
[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/storage/keycode.rs:196:31
[INFO] [stdout]     |
[INFO] [stdout] 196 |     fn serialize_struct(self, name: &'static str, len: usize) -> Result<Self::SerializeStruct> {
[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/storage/keycode.rs:196:51
[INFO] [stdout]     |
[INFO] [stdout] 196 |     fn serialize_struct(self, name: &'static str, len: usize) -> Result<Self::SerializeStruct> {
[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/storage/keycode.rs:202:9
[INFO] [stdout]     |
[INFO] [stdout] 202 |         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/storage/keycode.rs:203:9
[INFO] [stdout]     |
[INFO] [stdout] 203 |         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/storage/keycode.rs:204:9
[INFO] [stdout]     |
[INFO] [stdout] 204 |         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: `len`
[INFO] [stdout]    --> src/storage/keycode.rs:205:9
[INFO] [stdout]     |
[INFO] [stdout] 205 |         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/storage/keycode.rs:300:33
[INFO] [stdout]     |
[INFO] [stdout] 300 |     fn deserialize_any<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:307:34
[INFO] [stdout]     |
[INFO] [stdout] 307 |     fn deserialize_bool<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:314:32
[INFO] [stdout]     |
[INFO] [stdout] 314 |     fn deserialize_i8<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:321:33
[INFO] [stdout]     |
[INFO] [stdout] 321 |     fn deserialize_i16<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:328:33
[INFO] [stdout]     |
[INFO] [stdout] 328 |     fn deserialize_i32<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:335:33
[INFO] [stdout]     |
[INFO] [stdout] 335 |     fn deserialize_i64<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:342:32
[INFO] [stdout]     |
[INFO] [stdout] 342 |     fn deserialize_u8<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:349:33
[INFO] [stdout]     |
[INFO] [stdout] 349 |     fn deserialize_u16<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:356:33
[INFO] [stdout]     |
[INFO] [stdout] 356 |     fn deserialize_u32<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:372:33
[INFO] [stdout]     |
[INFO] [stdout] 372 |     fn deserialize_f32<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:379:33
[INFO] [stdout]     |
[INFO] [stdout] 379 |     fn deserialize_f64<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:386:34
[INFO] [stdout]     |
[INFO] [stdout] 386 |     fn deserialize_char<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:393:33
[INFO] [stdout]     |
[INFO] [stdout] 393 |     fn deserialize_str<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:400:36
[INFO] [stdout]     |
[INFO] [stdout] 400 |     fn deserialize_string<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:421:36
[INFO] [stdout]     |
[INFO] [stdout] 421 |     fn deserialize_option<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:428:34
[INFO] [stdout]     |
[INFO] [stdout] 428 |     fn deserialize_unit<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:435:41
[INFO] [stdout]     |
[INFO] [stdout] 435 |     fn deserialize_unit_struct<V>(self, name: &'static str, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:435:61
[INFO] [stdout]     |
[INFO] [stdout] 435 |     fn deserialize_unit_struct<V>(self, name: &'static str, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:442:44
[INFO] [stdout]     |
[INFO] [stdout] 442 |     fn deserialize_newtype_struct<V>(self, name: &'static str, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:442:64
[INFO] [stdout]     |
[INFO] [stdout] 442 |     fn deserialize_newtype_struct<V>(self, name: &'static str, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:456:35
[INFO] [stdout]     |
[INFO] [stdout] 456 |     fn deserialize_tuple<V>(self, len: usize, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:465:9
[INFO] [stdout]     |
[INFO] [stdout] 465 |         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/storage/keycode.rs:466:9
[INFO] [stdout]     |
[INFO] [stdout] 466 |         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/storage/keycode.rs:467:9
[INFO] [stdout]     |
[INFO] [stdout] 467 |         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/storage/keycode.rs:475:33
[INFO] [stdout]     |
[INFO] [stdout] 475 |     fn deserialize_map<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:484:9
[INFO] [stdout]     |
[INFO] [stdout] 484 |         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: `fields`
[INFO] [stdout]    --> src/storage/keycode.rs:485:9
[INFO] [stdout]     |
[INFO] [stdout] 485 |         fields: &'static [&'static str],
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_fields`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/storage/keycode.rs:486:9
[INFO] [stdout]     |
[INFO] [stdout] 486 |         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/storage/keycode.rs:496:9
[INFO] [stdout]     |
[INFO] [stdout] 496 |         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/storage/keycode.rs:497:9
[INFO] [stdout]     |
[INFO] [stdout] 497 |         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/storage/keycode.rs:506:40
[INFO] [stdout]     |
[INFO] [stdout] 506 |     fn deserialize_identifier<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:513:41
[INFO] [stdout]     |
[INFO] [stdout] 513 |     fn deserialize_ignored_any<V>(self, visitor: V) -> Result<V::Value>
[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/storage/keycode.rs:562:31
[INFO] [stdout]     |
[INFO] [stdout] 562 |     fn tuple_variant<V>(self, len: usize, visitor: V) -> Result<V::Value>
[INFO] [stdout]     |                               ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fields`
[INFO] [stdout]    --> src/storage/keycode.rs:571:9
[INFO] [stdout]     |
[INFO] [stdout] 571 |         fields: &'static [&'static str],
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_fields`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]    --> src/storage/keycode.rs:572:9
[INFO] [stdout]     |
[INFO] [stdout] 572 |         visitor: V,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.26s
[INFO] running `Command { std: "docker" "inspect" "8746abf8c173d287d7ce841e2ece54e0697a5ff2874009c7dd528ca0d0ea775d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8746abf8c173d287d7ce841e2ece54e0697a5ff2874009c7dd528ca0d0ea775d", kill_on_drop: false }`
[INFO] [stdout] 8746abf8c173d287d7ce841e2ece54e0697a5ff2874009c7dd528ca0d0ea775d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0f569bf506c678d0d45b7859d707032efe229bba6c9ad723ae2bf100706e941c
[INFO] running `Command { std: "docker" "start" "-a" "0f569bf506c678d0d45b7859d707032efe229bba6c9ad723ae2bf100706e941c", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]   --> src/storage/keycode.rs:43:29
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn serialize_bool(self, v: bool) -> Result<()> {
[INFO] [stderr]    |                             ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]   --> src/storage/keycode.rs:47:27
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn serialize_i8(self, v: i8) -> Result<()> {
[INFO] [stderr]    |                           ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]   --> src/storage/keycode.rs:51:28
[INFO] [stderr]    |
[INFO] [stderr] 51 |     fn serialize_i16(self, v: i16) -> Result<()> {
[INFO] [stderr]    |                            ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]   --> src/storage/keycode.rs:55:28
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn serialize_i32(self, v: i32) -> Result<()> {
[INFO] [stderr]    |                            ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]   --> src/storage/keycode.rs:59:28
[INFO] [stderr]    |
[INFO] [stderr] 59 |     fn serialize_i64(self, v: i64) -> Result<()> {
[INFO] [stderr]    |                            ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]   --> src/storage/keycode.rs:63:27
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn serialize_u8(self, v: u8) -> Result<()> {
[INFO] [stderr]    |                           ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]   --> src/storage/keycode.rs:67:28
[INFO] [stderr]    |
[INFO] [stderr] 67 |     fn serialize_u16(self, v: u16) -> Result<()> {
[INFO] [stderr]    |                            ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]   --> src/storage/keycode.rs:71:28
[INFO] [stderr]    |
[INFO] [stderr] 71 |     fn serialize_u32(self, v: u32) -> Result<()> {
[INFO] [stderr]    |                            ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]   --> src/storage/keycode.rs:80:28
[INFO] [stderr]    |
[INFO] [stderr] 80 |     fn serialize_f32(self, v: f32) -> Result<()> {
[INFO] [stderr]    |                            ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]   --> src/storage/keycode.rs:84:28
[INFO] [stderr]    |
[INFO] [stderr] 84 |     fn serialize_f64(self, v: f64) -> Result<()> {
[INFO] [stderr]    |                            ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]   --> src/storage/keycode.rs:88:29
[INFO] [stderr]    |
[INFO] [stderr] 88 |     fn serialize_char(self, v: char) -> Result<()> {
[INFO] [stderr]    |                             ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]   --> src/storage/keycode.rs:92:28
[INFO] [stderr]    |
[INFO] [stderr] 92 |     fn serialize_str(self, v: &str) -> Result<()> {
[INFO] [stderr]    |                            ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/storage/keycode.rs:115:32
[INFO] [stderr]     |
[INFO] [stderr] 115 |     fn serialize_some<T>(self, value: &T) -> Result<()>
[INFO] [stderr]     |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/storage/keycode.rs:126:36
[INFO] [stderr]     |
[INFO] [stderr] 126 |     fn serialize_unit_struct(self, name: &'static str) -> Result<()> {
[INFO] [stderr]     |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/storage/keycode.rs:133:9
[INFO] [stderr]     |
[INFO] [stderr] 133 |         name: &'static str,
[INFO] [stderr]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `variant`
[INFO] [stderr]    --> src/storage/keycode.rs:135:9
[INFO] [stderr]     |
[INFO] [stderr] 135 |         variant: &'static str,
[INFO] [stderr]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/storage/keycode.rs:141:42
[INFO] [stderr]     |
[INFO] [stderr] 141 |     fn serialize_newtype_struct<T>(self, name: &'static str, value: &T) -> Result<()>
[INFO] [stderr]     |                                          ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/storage/keycode.rs:141:62
[INFO] [stderr]     |
[INFO] [stderr] 141 |     fn serialize_newtype_struct<T>(self, name: &'static str, value: &T) -> Result<()>
[INFO] [stderr]     |                                                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/storage/keycode.rs:164:28
[INFO] [stderr]     |
[INFO] [stderr] 164 |     fn serialize_seq(self, len: Option<usize>) -> Result<Self::SerializeSeq> {
[INFO] [stderr]     |                            ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/storage/keycode.rs:168:30
[INFO] [stderr]     |
[INFO] [stderr] 168 |     fn serialize_tuple(self, len: usize) -> Result<Self::SerializeTuple> {
[INFO] [stderr]     |                              ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/storage/keycode.rs:174:9
[INFO] [stderr]     |
[INFO] [stderr] 174 |         name: &'static str,
[INFO] [stderr]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/storage/keycode.rs:175:9
[INFO] [stderr]     |
[INFO] [stderr] 175 |         len: usize,
[INFO] [stderr]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/storage/keycode.rs:186:9
[INFO] [stderr]     |
[INFO] [stderr] 186 |         len: usize,
[INFO] [stderr]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/storage/keycode.rs:192:28
[INFO] [stderr]     |
[INFO] [stderr] 192 |     fn serialize_map(self, len: Option<usize>) -> Result<Self::SerializeMap> {
[INFO] [stderr]     |                            ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/storage/keycode.rs:196:31
[INFO] [stderr]     |
[INFO] [stderr] 196 |     fn serialize_struct(self, name: &'static str, len: usize) -> Result<Self::SerializeStruct> {
[INFO] [stderr]     |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/storage/keycode.rs:196:51
[INFO] [stderr]     |
[INFO] [stderr] 196 |     fn serialize_struct(self, name: &'static str, len: usize) -> Result<Self::SerializeStruct> {
[INFO] [stderr]     |                                                   ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/storage/keycode.rs:202:9
[INFO] [stderr]     |
[INFO] [stderr] 202 |         name: &'static str,
[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/storage/keycode.rs:203:9
[INFO] [stderr]     |
[INFO] [stderr] 203 |         variant_index: u32,
[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/storage/keycode.rs:204:9
[INFO] [stderr]     |
[INFO] [stderr] 204 |         variant: &'static str,
[INFO] [stderr]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/storage/keycode.rs:205:9
[INFO] [stderr]     |
[INFO] [stderr] 205 |         len: usize,
[INFO] [stderr]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/storage/keycode.rs:300:33
[INFO] [stderr]     |
[INFO] [stderr] 300 |     fn deserialize_any<V>(self, visitor: V) -> Result<V::Value>
[INFO] [stderr]     |                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/storage/keycode.rs:307:34
[INFO] [stderr]     |
[INFO] [stderr] 307 |     fn deserialize_bool<V>(self, visitor: V) -> Result<V::Value>
[INFO] [stderr]     |                                  ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/storage/keycode.rs:314:32
[INFO] [stderr]     |
[INFO] [stderr] 314 |     fn deserialize_i8<V>(self, visitor: V) -> Result<V::Value>
[INFO] [stderr]     |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/storage/keycode.rs:321:33
[INFO] [stderr]     |
[INFO] [stderr] 321 |     fn deserialize_i16<V>(self, visitor: V) -> Result<V::Value>
[INFO] [stderr]     |                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/storage/keycode.rs:328:33
[INFO] [stderr]     |
[INFO] [stderr] 328 |     fn deserialize_i32<V>(self, visitor: V) -> Result<V::Value>
[INFO] [stderr]     |                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/storage/keycode.rs:335:33
[INFO] [stderr]     |
[INFO] [stderr] 335 |     fn deserialize_i64<V>(self, visitor: V) -> Result<V::Value>
[INFO] [stderr]     |                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/storage/keycode.rs:342:32
[INFO] [stderr]     |
[INFO] [stderr] 342 |     fn deserialize_u8<V>(self, visitor: V) -> Result<V::Value>
[INFO] [stderr]     |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/storage/keycode.rs:349:33
[INFO] [stderr]     |
[INFO] [stderr] 349 |     fn deserialize_u16<V>(self, visitor: V) -> Result<V::Value>
[INFO] [stderr]     |                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/storage/keycode.rs:356:33
[INFO] [stderr]     |
[INFO] [stderr] 356 |     fn deserialize_u32<V>(self, visitor: V) -> Result<V::Value>
[INFO] [stderr]     |                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/storage/keycode.rs:372:33
[INFO] [stderr]     |
[INFO] [stderr] 372 |     fn deserialize_f32<V>(self, visitor: V) -> Result<V::Value>
[INFO] [stderr]     |                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/storage/keycode.rs:379:33
[INFO] [stderr]     |
[INFO] [stderr] 379 |     fn deserialize_f64<V>(self, visitor: V) -> Result<V::Value>
[INFO] [stderr]     |                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/storage/keycode.rs:386:34
[INFO] [stderr]     |
[INFO] [stderr] 386 |     fn deserialize_char<V>(self, visitor: V) -> Result<V::Value>
[INFO] [stderr]     |                                  ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/storage/keycode.rs:393:33
[INFO] [stderr]     |
[INFO] [stderr] 393 |     fn deserialize_str<V>(self, visitor: V) -> Result<V::Value>
[INFO] [stderr]     |                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/storage/keycode.rs:400:36
[INFO] [stderr]     |
[INFO] [stderr] 400 |     fn deserialize_string<V>(self, visitor: V) -> Result<V::Value>
[INFO] [stderr]     |                                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/storage/keycode.rs:421:36
[INFO] [stderr]     |
[INFO] [stderr] 421 |     fn deserialize_option<V>(self, visitor: V) -> Result<V::Value>
[INFO] [stderr]     |                                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/storage/keycode.rs:428:34
[INFO] [stderr]     |
[INFO] [stderr] 428 |     fn deserialize_unit<V>(self, visitor: V) -> Result<V::Value>
[INFO] [stderr]     |                                  ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/storage/keycode.rs:435:41
[INFO] [stderr]     |
[INFO] [stderr] 435 |     fn deserialize_unit_struct<V>(self, name: &'static str, visitor: V) -> Result<V::Value>
[INFO] [stderr]     |                                         ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/storage/keycode.rs:435:61
[INFO] [stderr]     |
[INFO] [stderr] 435 |     fn deserialize_unit_struct<V>(self, name: &'static str, visitor: V) -> Result<V::Value>
[INFO] [stderr]     |                                                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/storage/keycode.rs:442:44
[INFO] [stderr]     |
[INFO] [stderr] 442 |     fn deserialize_newtype_struct<V>(self, name: &'static str, visitor: V) -> Result<V::Value>
[INFO] [stderr]     |                                            ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/storage/keycode.rs:442:64
[INFO] [stderr]     |
[INFO] [stderr] 442 |     fn deserialize_newtype_struct<V>(self, name: &'static str, visitor: V) -> Result<V::Value>
[INFO] [stderr]     |                                                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/storage/keycode.rs:456:35
[INFO] [stderr]     |
[INFO] [stderr] 456 |     fn deserialize_tuple<V>(self, len: usize, visitor: V) -> Result<V::Value>
[INFO] [stderr]     |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/storage/keycode.rs:465:9
[INFO] [stderr]     |
[INFO] [stderr] 465 |         name: &'static str,
[INFO] [stderr]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/storage/keycode.rs:466:9
[INFO] [stderr]     |
[INFO] [stderr] 466 |         len: usize,
[INFO] [stderr]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/storage/keycode.rs:467:9
[INFO] [stderr]     |
[INFO] [stderr] 467 |         visitor: V,
[INFO] [stderr]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/storage/keycode.rs:475:33
[INFO] [stderr]     |
[INFO] [stderr] 475 |     fn deserialize_map<V>(self, visitor: V) -> Result<V::Value>
[INFO] [stderr]     |                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/storage/keycode.rs:484:9
[INFO] [stderr]     |
[INFO] [stderr] 484 |         name: &'static str,
[INFO] [stderr]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `fields`
[INFO] [stderr]    --> src/storage/keycode.rs:485:9
[INFO] [stderr]     |
[INFO] [stderr] 485 |         fields: &'static [&'static str],
[INFO] [stderr]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_fields`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/storage/keycode.rs:486:9
[INFO] [stderr]     |
[INFO] [stderr] 486 |         visitor: V,
[INFO] [stderr]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/storage/keycode.rs:496:9
[INFO] [stderr]     |
[INFO] [stderr] 496 |         name: &'static str,
[INFO] [stderr]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `variants`
[INFO] [stderr]    --> src/storage/keycode.rs:497:9
[INFO] [stderr]     |
[INFO] [stderr] 497 |         variants: &'static [&'static str],
[INFO] [stderr]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variants`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/storage/keycode.rs:506:40
[INFO] [stderr]     |
[INFO] [stderr] 506 |     fn deserialize_identifier<V>(self, visitor: V) -> Result<V::Value>
[INFO] [stderr]     |                                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/storage/keycode.rs:513:41
[INFO] [stderr]     |
[INFO] [stderr] 513 |     fn deserialize_ignored_any<V>(self, visitor: V) -> Result<V::Value>
[INFO] [stderr]     |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/storage/keycode.rs:562:31
[INFO] [stderr]     |
[INFO] [stderr] 562 |     fn tuple_variant<V>(self, len: usize, visitor: V) -> Result<V::Value>
[INFO] [stderr]     |                               ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `fields`
[INFO] [stderr]    --> src/storage/keycode.rs:571:9
[INFO] [stderr]     |
[INFO] [stderr] 571 |         fields: &'static [&'static str],
[INFO] [stderr]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_fields`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]    --> src/storage/keycode.rs:572:9
[INFO] [stderr]     |
[INFO] [stderr] 572 |         visitor: V,
[INFO] [stderr]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr] 
[INFO] [stderr] warning: struct `KVEngine` is never constructed
[INFO] [stderr]   --> src/sql/engine/kv.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub struct KVEngine<E: StorageEngin> {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/sql/engine/kv.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 23 | impl<E: StorageEngin> KVEngine<E> {
[INFO] [stderr]    | --------------------------------- associated function in this implementation
[INFO] [stderr] 24 |     pub fn new(engine: E) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `KVTransaction` is never constructed
[INFO] [stderr]   --> src/sql/engine/kv.rs:40:12
[INFO] [stderr]    |
[INFO] [stderr] 40 | pub struct KVTransaction<E: StorageEngin> {
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/sql/engine/kv.rs:45:12
[INFO] [stderr]    |
[INFO] [stderr] 44 | impl<E: StorageEngin> KVTransaction<E> {
[INFO] [stderr]    | -------------------------------------- associated function in this implementation
[INFO] [stderr] 45 |     pub fn new(txn: storage::mvcc::MvccTransaction<E>) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Key` is never used
[INFO] [stderr]    --> src/sql/engine/kv.rs:136:6
[INFO] [stderr]     |
[INFO] [stderr] 136 | enum Key {
[INFO] [stderr]     |      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `KeyPrefix` is never used
[INFO] [stderr]    --> src/sql/engine/kv.rs:142:6
[INFO] [stderr]     |
[INFO] [stderr] 142 | enum KeyPrefix {
[INFO] [stderr]     |      ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `result`
[INFO] [stderr]    --> src/storage/mvcc.rs:339:35
[INFO] [stderr]     |
[INFO] [stderr] 339 |     use std::{fs::remove_dir_all, result};
[INFO] [stderr]     |                                   ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]    --> src/storage/mvcc.rs:342:17
[INFO] [stderr]     |
[INFO] [stderr] 342 |         error::{self, Error, Result},
[INFO] [stderr]     |                 ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]    --> src/storage/keycode.rs:587:16
[INFO] [stderr]     |
[INFO] [stderr] 587 |         mvcc::{self, MvccKey, MvccKeyPrefix},
[INFO] [stderr]     |                ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `sqldb-rs-fzr` (lib) generated 71 warnings (run `cargo fix --lib -p sqldb-rs-fzr` to apply 65 suggestions)
[INFO] [stderr] warning: `sqldb-rs-fzr` (lib test) generated 68 warnings (65 duplicates) (run `cargo fix --lib -p sqldb-rs-fzr --tests` to apply 3 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/sqldb_rs_fzr-e45edb5bceb80e92)
[INFO] [stdout] 
[INFO] [stdout] running 29 tests
[INFO] [stdout] test sql::engine::kv::tests::test_create_table ... ok
[INFO] [stdout] test sql::parser::lexer::test::test_lexer_select ... ok
[INFO] [stdout] test sql::parser::lexer::test::test_lexer_insert_into ... ok
[INFO] [stdout] test sql::parser::lexer::test::test_lexer_create_table ... ok
[INFO] [stdout] test sql::parser::tests::test_parser_select_ddl ... ok
[INFO] [stdout] test sql::plan::test::test_plan_create_table ... ok
[INFO] [stdout] test sql::parser::tests::test_parse_crate_ddl ... ok
[INFO] [stdout] test sql::plan::test::test_plan_insert ... ok
[INFO] [stdout] test sql::plan::test::test_plan_select ... ok
[INFO] [stdout] test storage::engine::tests::test_memory ... ok
[INFO] [stdout] test storage::keycode::tests::test_encode_prefix ... ok
[INFO] [stdout] test storage::keycode::tests::test_encode ... ok
[INFO] [stdout] test storage::engine::tests::test_dist ... FAILED
[INFO] [stdout] test storage::disk::test_disk_engine_compact ... ok
[INFO] [stdout] test storage::mvcc::tests::test_delete_conflict ... ok
[INFO] [stdout] test storage::keycode::tests::test_decode ... ok
[INFO] [stdout] test storage::mvcc::tests::test_get ... ok
[INFO] [stdout] test storage::mvcc::tests::test_delete ... ok
[INFO] [stdout] test storage::keycode::tests::test_u8_converter ... ok
[INFO] [stdout] test storage::mvcc::tests::test_phantom_read ... ok
[INFO] [stdout] test storage::mvcc::tests::test_dirty_read ... ok
[INFO] [stdout] test storage::mvcc::tests::test_scan_isolation ... ok
[INFO] [stdout] test storage::mvcc::tests::test_get_isalation ... ok
[INFO] [stdout] test storage::mvcc::tests::test_rollback ... ok
[INFO] [stdout] test sql::parser::tests::test_parse_insert_ddl ... ok
[INFO] [stdout] test storage::mvcc::tests::test_unrepeatable_read ... ok
[INFO] [stdout] test storage::mvcc::tests::test_set_conflict ... ok
[INFO] [stdout] test storage::mvcc::tests::test_scan_prefix ... ok
[INFO] [stdout] test storage::mvcc::tests::test_set ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- storage::engine::tests::test_dist stdout ----
[INFO] [stdout] Error: Internal("Directory not empty (os error 39)")
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     storage::engine::tests::test_dist
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 28 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "0f569bf506c678d0d45b7859d707032efe229bba6c9ad723ae2bf100706e941c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f569bf506c678d0d45b7859d707032efe229bba6c9ad723ae2bf100706e941c", kill_on_drop: false }`
[INFO] [stdout] 0f569bf506c678d0d45b7859d707032efe229bba6c9ad723ae2bf100706e941c
