[INFO] cloning repository https://github.com/liugangnhm/rustdemo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/liugangnhm/rustdemo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fliugangnhm%2Frustdemo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fliugangnhm%2Frustdemo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a2fdb2ff411f467c865607881fa69b5335a98e14
[INFO] checking liugangnhm/rustdemo against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fliugangnhm%2Frustdemo" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/liugangnhm/rustdemo on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/liugangnhm/rustdemo
[INFO] finished tweaking git repo https://github.com/liugangnhm/rustdemo
[INFO] tweaked toml for git repo https://github.com/liugangnhm/rustdemo written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/liugangnhm/rustdemo 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded IOKit-sys v0.1.5
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bf0400238d743d8a248f9f0706dbf96f313e8f5a4c429246122481231f60bf9b
[INFO] running `Command { std: "docker" "start" "-a" "bf0400238d743d8a248f9f0706dbf96f313e8f5a4c429246122481231f60bf9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf0400238d743d8a248f9f0706dbf96f313e8f5a4c429246122481231f60bf9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf0400238d743d8a248f9f0706dbf96f313e8f5a4c429246122481231f60bf9b", kill_on_drop: false }`
[INFO] [stdout] bf0400238d743d8a248f9f0706dbf96f313e8f5a4c429246122481231f60bf9b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6431c3009677e5ef67bb118ee21ec7a303c535ca36d4923ebc26f552e2814ad7
[INFO] running `Command { std: "docker" "start" "-a" "6431c3009677e5ef67bb118ee21ec7a303c535ca36d4923ebc26f552e2814ad7", kill_on_drop: false }`
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[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling rustix v0.37.27
[INFO] [stderr]    Compiling serde_json v1.0.113
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[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v3.2.25
[INFO] [stderr]    Compiling hidapi v2.5.1
[INFO] [stderr]     Checking serialport v4.2.2
[INFO] [stderr]    Compiling serde_derive v1.0.196
[INFO] [stderr]    Compiling thiserror-impl v1.0.56
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[INFO] [stderr]    Compiling toml v0.5.11
[INFO] [stderr]    Compiling rustdemo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `DerefMut` and `Deref`
[INFO] [stdout]  --> src/lib.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::{Deref, DerefMut};
[INFO] [stdout]   |                ^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `DerefMut` and `Deref`
[INFO] [stdout]  --> src/lib.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::{Deref, DerefMut};
[INFO] [stdout]   |                ^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `a1` should have an upper camel case name
[INFO] [stdout]  --> src/lib.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     a1 = 0,
[INFO] [stdout]   |     ^^ help: convert the identifier to upper camel case: `A1`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `a1` should have an upper camel case name
[INFO] [stdout]  --> src/lib.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     a1 = 0,
[INFO] [stdout]   |     ^^ help: convert the identifier to upper camel case: `A1`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `a2` should have an upper camel case name
[INFO] [stdout]   --> src/lib.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     a2 = 2,
[INFO] [stdout]    |     ^^ help: convert the identifier to upper camel case: `A2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `a2` should have an upper camel case name
[INFO] [stdout]   --> src/lib.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     a2 = 2,
[INFO] [stdout]    |     ^^ help: convert the identifier to upper camel case: `A2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `a3` should have an upper camel case name
[INFO] [stdout]   --> src/lib.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     a3,
[INFO] [stdout]    |     ^^ help: convert the identifier to upper camel case: `A3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `a3` should have an upper camel case name
[INFO] [stdout]   --> src/lib.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     a3,
[INFO] [stdout]    |     ^^ help: convert the identifier to upper camel case: `A3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `a4` should have an upper camel case name
[INFO] [stdout]   --> src/lib.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     a4 = 5,
[INFO] [stdout]    |     ^^ help: convert the identifier to upper camel case: `A4`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `a4` should have an upper camel case name
[INFO] [stdout]   --> src/lib.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     a4 = 5,
[INFO] [stdout]    |     ^^ help: convert the identifier to upper camel case: `A4`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `with_box`
[INFO] [stdout]   --> src/lib.rs:30:24
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub extern "C" fn root(with_box: &MyStruct) {}
[INFO] [stdout]    |                        ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_with_box`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `with_box`
[INFO] [stdout]   --> src/lib.rs:30:24
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub extern "C" fn root(with_box: &MyStruct) {}
[INFO] [stdout]    |                        ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_with_box`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/lib.rs:44:28
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub extern "C" fn drop_box(x: Box<i32>) {}
[INFO] [stdout]    |                            ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/lib.rs:44:28
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub extern "C" fn drop_box(x: Box<i32>) {}
[INFO] [stdout]    |                            ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/lib.rs:53:32
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub extern "C" fn drop_box_opt(x: Option<Box<i32>>) {}
[INFO] [stdout]    |                                ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/lib.rs:53:32
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub extern "C" fn drop_box_opt(x: Option<Box<i32>>) {}
[INFO] [stdout]    |                                ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `A` is never used
[INFO] [stdout]  --> src/lib.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | enum A {
[INFO] [stdout]   |      ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `A` is never used
[INFO] [stdout]  --> src/lib.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | enum A {
[INFO] [stdout]   |      ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::Cell`
[INFO] [stdout]  --> src/bin/condvar.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cell::Cell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/bin/condvar.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f2`
[INFO] [stdout]  --> src/bin/trait_demo.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let f2 = f;
[INFO] [stdout]   |         ^^ help: if this is intentional, prefix it with an underscore: `_f2`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Foo` is never used
[INFO] [stdout]  --> src/bin/trait_demo.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | trait Foo {
[INFO] [stdout]   |       ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mod1_pri_f1` is never used
[INFO] [stdout]  --> src/bin/mod_test.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn mod1_pri_f1() {}
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test1` is never used
[INFO] [stdout]   --> src/bin/mod_test.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn test1() {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mod2_pri_f1` is never used
[INFO] [stdout]   --> src/bin/mod_test.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |         fn mod2_pri_f1() {}
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mod2_pub_f2` is never used
[INFO] [stdout]   --> src/bin/mod_test.rs:18:16
[INFO] [stdout]    |
[INFO] [stdout] 18 |         pub fn mod2_pub_f2() {}
[INFO] [stdout]    |                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test1` is never used
[INFO] [stdout]   --> src/bin/mod_test.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |         fn test1() {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `anyhow::anyhow`
[INFO] [stdout]  --> src/bin/vup_lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use anyhow::anyhow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error::Error`
[INFO] [stdout]  --> src/bin/vup_lib.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{error::Error, io};
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `DeviceInfo` and `HidApi`
[INFO] [stdout]  --> src/bin/vup_lib.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | use hidapi::{DeviceInfo, HidApi, HidDevice};
[INFO] [stdout]   |              ^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `anyhow::anyhow`
[INFO] [stdout]  --> src/bin/vup_lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use anyhow::anyhow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error::Error`
[INFO] [stdout]  --> src/bin/vup_lib.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{error::Error, io};
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `DeviceInfo` and `HidApi`
[INFO] [stdout]  --> src/bin/vup_lib.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | use hidapi::{DeviceInfo, HidApi, HidDevice};
[INFO] [stdout]   |              ^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rsp_frame`
[INFO] [stdout]   --> src/bin/vup_lib.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn cmd(rsp_frame: &[u8]) -> impl Bytes {
[INFO] [stdout]    |            ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rsp_frame`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rsp_frame`
[INFO] [stdout]   --> src/bin/vup_lib.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn cmd(rsp_frame: &[u8]) -> impl Bytes {
[INFO] [stdout]    |            ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rsp_frame`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rsp_frame`
[INFO] [stdout]   --> src/bin/vup_lib.rs:47:16
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn get_rsp(rsp_frame: &[u8]) -> Self::Rsp {
[INFO] [stdout]    |                ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rsp_frame`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rsp_frame`
[INFO] [stdout]   --> src/bin/vup_lib.rs:51:16
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn is_last(rsp_frame: &[u8]) -> bool {
[INFO] [stdout]    |                ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rsp_frame`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rsp_frame`
[INFO] [stdout]   --> src/bin/vup_lib.rs:47:16
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn get_rsp(rsp_frame: &[u8]) -> Self::Rsp {
[INFO] [stdout]    |                ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rsp_frame`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rsp_frame`
[INFO] [stdout]   --> src/bin/vup_lib.rs:51:16
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn is_last(rsp_frame: &[u8]) -> bool {
[INFO] [stdout]    |                ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rsp_frame`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rsp_frame`
[INFO] [stdout]   --> src/bin/vup_lib.rs:55:22
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn need_response(rsp_frame: &[u8]) -> bool {
[INFO] [stdout]    |                      ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rsp_frame`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmd`
[INFO] [stdout]   --> src/bin/vup_lib.rs:96:20
[INFO] [stdout]    |
[INFO] [stdout] 96 |     fn send(&self, cmd: &[u8]) -> io::Result<i32> {
[INFO] [stdout]    |                    ^^^ help: if this is intentional, prefix it with an underscore: `_cmd`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/bin/circle.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Cons(i32, RefCell<Rc<List>>),
[INFO] [stdout]   |     ---- ^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `List` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Cons((), RefCell<Rc<List>>),
[INFO] [stdout]   |          ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rsp_frame`
[INFO] [stdout]   --> src/bin/vup_lib.rs:55:22
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn need_response(rsp_frame: &[u8]) -> bool {
[INFO] [stdout]    |                      ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rsp_frame`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmd`
[INFO] [stdout]   --> src/bin/vup_lib.rs:96:20
[INFO] [stdout]    |
[INFO] [stdout] 96 |     fn send(&self, cmd: &[u8]) -> io::Result<i32> {
[INFO] [stdout]    |                    ^^^ help: if this is intentional, prefix it with an underscore: `_cmd`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `VupCmd` is never used
[INFO] [stdout]  --> src/bin/vup_lib.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | enum VupCmd {
[INFO] [stdout]   |      ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `CmdRsp` is never used
[INFO] [stdout]   --> src/bin/vup_lib.rs:28:7
[INFO] [stdout]    |
[INFO] [stdout] 28 | trait CmdRsp {
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CmdGetVersion` is never constructed
[INFO] [stdout]   --> src/bin/vup_lib.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | struct CmdGetVersion;
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `RspParse` is never used
[INFO] [stdout]   --> src/bin/vup_lib.rs:64:7
[INFO] [stdout]    |
[INFO] [stdout] 64 | trait RspParse {
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Transport` is never used
[INFO] [stdout]   --> src/bin/vup_lib.rs:72:7
[INFO] [stdout]    |
[INFO] [stdout] 72 | trait Transport {
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `HidTransport` is never constructed
[INFO] [stdout]   --> src/bin/vup_lib.rs:87:8
[INFO] [stdout]    |
[INFO] [stdout] 87 | struct HidTransport {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/bin/vup_lib.rs:129:8
[INFO] [stdout]     |
[INFO] [stdout] 128 | impl HidTransport {
[INFO] [stdout]     | ----------------- associated function in this implementation
[INFO] [stdout] 129 |     fn new(vid: u16, pid: u16) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `VANCH_VID` is never used
[INFO] [stdout]    --> src/bin/vup_lib.rs:139:7
[INFO] [stdout]     |
[INFO] [stdout] 139 | const VANCH_VID: u16 = 0x0483;
[INFO] [stdout]     |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `VANCH_PID` is never used
[INFO] [stdout]    --> src/bin/vup_lib.rs:140:7
[INFO] [stdout]     |
[INFO] [stdout] 140 | const VANCH_PID: u16 = 0x5750;
[INFO] [stdout]     |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `UsbDeviceNotFound` is never constructed
[INFO] [stdout]    --> src/bin/vup_lib.rs:177:5
[INFO] [stdout]     |
[INFO] [stdout] 176 | enum LibErr {
[INFO] [stdout]     |      ------ variant in this enum
[INFO] [stdout] 177 |     UsbDeviceNotFound = 0x98,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `LibErr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `VupCmd` is never used
[INFO] [stdout]  --> src/bin/vup_lib.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | enum VupCmd {
[INFO] [stdout]   |      ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `CmdRsp` is never used
[INFO] [stdout]   --> src/bin/vup_lib.rs:28:7
[INFO] [stdout]    |
[INFO] [stdout] 28 | trait CmdRsp {
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CmdGetVersion` is never constructed
[INFO] [stdout]   --> src/bin/vup_lib.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | struct CmdGetVersion;
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `RspParse` is never used
[INFO] [stdout]   --> src/bin/vup_lib.rs:64:7
[INFO] [stdout]    |
[INFO] [stdout] 64 | trait RspParse {
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Transport` is never used
[INFO] [stdout]   --> src/bin/vup_lib.rs:72:7
[INFO] [stdout]    |
[INFO] [stdout] 72 | trait Transport {
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `HidTransport` is never constructed
[INFO] [stdout]   --> src/bin/vup_lib.rs:87:8
[INFO] [stdout]    |
[INFO] [stdout] 87 | struct HidTransport {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/bin/vup_lib.rs:129:8
[INFO] [stdout]     |
[INFO] [stdout] 128 | impl HidTransport {
[INFO] [stdout]     | ----------------- associated function in this implementation
[INFO] [stdout] 129 |     fn new(vid: u16, pid: u16) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `VANCH_VID` is never used
[INFO] [stdout]    --> src/bin/vup_lib.rs:139:7
[INFO] [stdout]     |
[INFO] [stdout] 139 | const VANCH_VID: u16 = 0x0483;
[INFO] [stdout]     |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `VANCH_PID` is never used
[INFO] [stdout]    --> src/bin/vup_lib.rs:140:7
[INFO] [stdout]     |
[INFO] [stdout] 140 | const VANCH_PID: u16 = 0x5750;
[INFO] [stdout]     |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `UsbDeviceNotFound` is never constructed
[INFO] [stdout]    --> src/bin/vup_lib.rs:177:5
[INFO] [stdout]     |
[INFO] [stdout] 176 | enum LibErr {
[INFO] [stdout]     |      ------ variant in this enum
[INFO] [stdout] 177 |     UsbDeviceNotFound = 0x98,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `LibErr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f2`
[INFO] [stdout]  --> src/bin/trait_demo.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let f2 = f;
[INFO] [stdout]   |         ^^ help: if this is intentional, prefix it with an underscore: `_f2`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Foo` is never used
[INFO] [stdout]  --> src/bin/trait_demo.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | trait Foo {
[INFO] [stdout]   |       ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `lifetime1` is never used
[INFO] [stdout]  --> src/bin/static.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn lifetime1() -> &'static str {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `lifetime2` is never used
[INFO] [stdout]  --> src/bin/static.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn lifetime2(name: &String) -> &str {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `lifetime3` is never used
[INFO] [stdout]   --> src/bin/static.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn lifetime3(name: &str) -> Chars {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `slice`
[INFO] [stdout]   --> src/bin/lf.rs:15:15
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn capitalize(slice: &mut [char]) {}
[INFO] [stdout]    |               ^^^^^ help: if this is intentional, prefix it with an underscore: `_slice`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/bin/circle.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Cons(i32, RefCell<Rc<List>>),
[INFO] [stdout]   |     ---- ^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `List` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Cons((), RefCell<Rc<List>>),
[INFO] [stdout]   |          ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mod1_pri_f1` is never used
[INFO] [stdout]  --> src/bin/mod_test.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn mod1_pri_f1() {}
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test1` is never used
[INFO] [stdout]   --> src/bin/mod_test.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn test1() {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mod2_pri_f1` is never used
[INFO] [stdout]   --> src/bin/mod_test.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |         fn mod2_pri_f1() {}
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mod2_pub_f2` is never used
[INFO] [stdout]   --> src/bin/mod_test.rs:18:16
[INFO] [stdout]    |
[INFO] [stdout] 18 |         pub fn mod2_pub_f2() {}
[INFO] [stdout]    |                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test1` is never used
[INFO] [stdout]   --> src/bin/mod_test.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |         fn test1() {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sum`
[INFO] [stdout]   --> src/bin/test_generic.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let sum: i32 = data.iter().map(|&x| x as i32).sum();
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_sum`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cmd1` is never constructed
[INFO] [stdout]  --> src/bin/test_generic.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Cmd1;
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cmd2` is never constructed
[INFO] [stdout]  --> src/bin/test_generic.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Cmd2;
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cmd3` is never constructed
[INFO] [stdout]  --> src/bin/test_generic.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Cmd3;
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Result1` is never constructed
[INFO] [stdout]  --> src/bin/test_generic.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Result1;
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Result2` is never constructed
[INFO] [stdout]   --> src/bin/test_generic.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Result2;
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Parse` is never used
[INFO] [stdout]   --> src/bin/test_generic.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | trait Parse<RESULT> {
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sum`
[INFO] [stdout]   --> src/bin/test_generic.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let sum: i32 = data.iter().map(|&x| x as i32).sum();
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_sum`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cmd1` is never constructed
[INFO] [stdout]  --> src/bin/test_generic.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Cmd1;
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cmd2` is never constructed
[INFO] [stdout]  --> src/bin/test_generic.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Cmd2;
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cmd3` is never constructed
[INFO] [stdout]  --> src/bin/test_generic.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Cmd3;
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Result1` is never constructed
[INFO] [stdout]  --> src/bin/test_generic.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Result1;
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Result2` is never constructed
[INFO] [stdout]   --> src/bin/test_generic.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Result2;
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Parse` is never used
[INFO] [stdout]   --> src/bin/test_generic.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | trait Parse<RESULT> {
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::Cell`
[INFO] [stdout]  --> src/bin/condvar.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cell::Cell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/bin/condvar.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `slice`
[INFO] [stdout]   --> src/bin/lf.rs:15:15
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn capitalize(slice: &mut [char]) {}
[INFO] [stdout]    |               ^^^^^ help: if this is intentional, prefix it with an underscore: `_slice`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `lifetime1` is never used
[INFO] [stdout]  --> src/bin/static.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn lifetime1() -> &'static str {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `lifetime2` is never used
[INFO] [stdout]  --> src/bin/static.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn lifetime2(name: &String) -> &str {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `lifetime3` is never used
[INFO] [stdout]   --> src/bin/static.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn lifetime3(name: &str) -> Chars {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.83s
[INFO] running `Command { std: "docker" "inspect" "6431c3009677e5ef67bb118ee21ec7a303c535ca36d4923ebc26f552e2814ad7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6431c3009677e5ef67bb118ee21ec7a303c535ca36d4923ebc26f552e2814ad7", kill_on_drop: false }`
[INFO] [stdout] 6431c3009677e5ef67bb118ee21ec7a303c535ca36d4923ebc26f552e2814ad7