[INFO] fetching crate unit18 0.1.0...
[INFO] building unit18-0.1.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate unit18 0.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate unit18 0.1.0
[INFO] finished tweaking crates.io crate unit18 0.1.0
[INFO] tweaked toml for crates.io crate unit18 0.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate unit18 0.1.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate unit18 0.1.0 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 90bdd56626e3f8b427b7e5d472e324d48381b21e7877064c84c3cfe5076e24f4
[INFO] running `Command { std: "docker" "start" "-a" "90bdd56626e3f8b427b7e5d472e324d48381b21e7877064c84c3cfe5076e24f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "90bdd56626e3f8b427b7e5d472e324d48381b21e7877064c84c3cfe5076e24f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90bdd56626e3f8b427b7e5d472e324d48381b21e7877064c84c3cfe5076e24f4", kill_on_drop: false }`
[INFO] [stdout] 90bdd56626e3f8b427b7e5d472e324d48381b21e7877064c84c3cfe5076e24f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22566200a76f0b9c5de21580fc58dba449c539e6826002cb01c353d4b48684c5
[INFO] running `Command { std: "docker" "start" "-a" "22566200a76f0b9c5de21580fc58dba449c539e6826002cb01c353d4b48684c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling unit18 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/main.rs:69:10
[INFO] [stdout]    |
[INFO] [stdout] 69 |         (a, _, c, _, e) => {}// 对于多个元祖的值，也可以像这样忽略部分，只使用部分，或者全忽略。
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/main.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         -1.. => {}// 使用区间将一定范围的分支组合在一个分支，此处忽略右边的区间分支。
[INFO] [stdout]    |         ---- matches all the relevant values
[INFO] [stdout] 32 |         1 | 2 if flag => {}// 可以使用 | 将多个分支组合在一个分支。
[INFO] [stdout]    |         ^^^^^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/main.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         -1.. => {}// 使用区间将一定范围的分支组合在一个分支，此处忽略右边的区间分支。
[INFO] [stdout]    |         ---- matches all the relevant values
[INFO] [stdout] 32 |         1 | 2 if flag => {}// 可以使用 | 将多个分支组合在一个分支。
[INFO] [stdout] 33 |         3..=4 => {}// 使用区间将一定范围的分支组合在一个分支。
[INFO] [stdout]    |         ^^^^^ no value can reach this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/main.rs:69:16
[INFO] [stdout]    |
[INFO] [stdout] 69 |         (a, _, c, _, e) => {}// 对于多个元祖的值，也可以像这样忽略部分，只使用部分，或者全忽略。
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:69:22
[INFO] [stdout]    |
[INFO] [stdout] 69 |         (a, _, c, _, e) => {}// 对于多个元祖的值，也可以像这样忽略部分，只使用部分，或者全忽略。
[INFO] [stdout]    |                      ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/main.rs:73:10
[INFO] [stdout]    |
[INFO] [stdout] 73 |         (a, ..) => {}// 使用..来忽略除开头任意数量的值，对结构体也是一样的用法。
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/main.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         _ => {}
[INFO] [stdout]    |         ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/main.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         -1.. => {}// 使用区间将一定范围的分支组合在一个分支，此处忽略右边的区间分支。
[INFO] [stdout]    |         ---- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 34 |         ..=5 => {}// 使用区间将一定范围的分支组合在一个分支，此处忽略左边的区间分支。
[INFO] [stdout]    |         ---- matches some of the same values
[INFO] [stdout] 35 |         _ => {}
[INFO] [stdout]    |         ^ collectively making this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/main.rs:77:10
[INFO] [stdout]    |
[INFO] [stdout] 77 |         (a, b, ..) => {}// 使用..来忽略除开头任意数量的值，对结构体也是一样的用法。
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/main.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |         (a, b, ..) => {}// 使用..来忽略除开头任意数量的值，对结构体也是一样的用法。
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:81:14
[INFO] [stdout]    |
[INFO] [stdout] 81 |         (.., e) => {}// 使用..来忽略除末尾任意数量的值，对结构体也是一样的用法。
[INFO] [stdout]    |              ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `d`
[INFO] [stdout]   --> src/main.rs:85:14
[INFO] [stdout]    |
[INFO] [stdout] 85 |         (.., d, e) => {}// 使用..来忽略除末尾任意数量的值，对结构体也是一样的用法。
[INFO] [stdout]    |              ^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:85:17
[INFO] [stdout]    |
[INFO] [stdout] 85 |         (.., d, e) => {}// 使用..来忽略除末尾任意数量的值，对结构体也是一样的用法。
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/main.rs:89:10
[INFO] [stdout]    |
[INFO] [stdout] 89 |         (a, .., e) => {}// 使用..来忽略中间任意部分的值，对结构体也是一样的用法。
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:89:17
[INFO] [stdout]    |
[INFO] [stdout] 89 |         (a, .., e) => {}// 使用..来忽略中间任意部分的值，对结构体也是一样的用法。
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/main.rs:93:10
[INFO] [stdout]    |
[INFO] [stdout] 93 |         (a, b, .., d, e) => {}// 使用..来忽略中间任意部分的值，对结构体也是一样的用法。
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/main.rs:93:13
[INFO] [stdout]    |
[INFO] [stdout] 93 |         (a, b, .., d, e) => {}// 使用..来忽略中间任意部分的值，对结构体也是一样的用法。
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `d`
[INFO] [stdout]   --> src/main.rs:93:20
[INFO] [stdout]    |
[INFO] [stdout] 93 |         (a, b, .., d, e) => {}// 使用..来忽略中间任意部分的值，对结构体也是一样的用法。
[INFO] [stdout]    |                    ^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:93:23
[INFO] [stdout]    |
[INFO] [stdout] 93 |         (a, b, .., d, e) => {}// 使用..来忽略中间任意部分的值，对结构体也是一样的用法。
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `foo` is never used
[INFO] [stdout]   --> src/main.rs:65:4
[INFO] [stdout]    |
[INFO] [stdout] 65 | fn foo(_: i32, numbers: (i32, i32, i32, i32, i32)) {
[INFO] [stdout]    |    ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "22566200a76f0b9c5de21580fc58dba449c539e6826002cb01c353d4b48684c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22566200a76f0b9c5de21580fc58dba449c539e6826002cb01c353d4b48684c5", kill_on_drop: false }`
[INFO] [stdout] 22566200a76f0b9c5de21580fc58dba449c539e6826002cb01c353d4b48684c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b7c8c22ec9f66e0bc91c499d10e59fa3f71ea92e26a848a2284c56e4b12f4e96
[INFO] running `Command { std: "docker" "start" "-a" "b7c8c22ec9f66e0bc91c499d10e59fa3f71ea92e26a848a2284c56e4b12f4e96", kill_on_drop: false }`
[INFO] [stderr]    Compiling unit18 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/main.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         -1.. => {}// 使用区间将一定范围的分支组合在一个分支，此处忽略右边的区间分支。
[INFO] [stdout]    |         ---- matches all the relevant values
[INFO] [stdout] 32 |         1 | 2 if flag => {}// 可以使用 | 将多个分支组合在一个分支。
[INFO] [stdout]    |         ^^^^^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/main.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         -1.. => {}// 使用区间将一定范围的分支组合在一个分支，此处忽略右边的区间分支。
[INFO] [stdout]    |         ---- matches all the relevant values
[INFO] [stdout] 32 |         1 | 2 if flag => {}// 可以使用 | 将多个分支组合在一个分支。
[INFO] [stdout] 33 |         3..=4 => {}// 使用区间将一定范围的分支组合在一个分支。
[INFO] [stdout]    |         ^^^^^ no value can reach this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/main.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         _ => {}
[INFO] [stdout]    |         ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/main.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         -1.. => {}// 使用区间将一定范围的分支组合在一个分支，此处忽略右边的区间分支。
[INFO] [stdout]    |         ---- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 34 |         ..=5 => {}// 使用区间将一定范围的分支组合在一个分支，此处忽略左边的区间分支。
[INFO] [stdout]    |         ---- matches some of the same values
[INFO] [stdout] 35 |         _ => {}
[INFO] [stdout]    |         ^ collectively making this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/main.rs:69:10
[INFO] [stdout]    |
[INFO] [stdout] 69 |         (a, _, c, _, e) => {}// 对于多个元祖的值，也可以像这样忽略部分，只使用部分，或者全忽略。
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/main.rs:69:16
[INFO] [stdout]    |
[INFO] [stdout] 69 |         (a, _, c, _, e) => {}// 对于多个元祖的值，也可以像这样忽略部分，只使用部分，或者全忽略。
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:69:22
[INFO] [stdout]    |
[INFO] [stdout] 69 |         (a, _, c, _, e) => {}// 对于多个元祖的值，也可以像这样忽略部分，只使用部分，或者全忽略。
[INFO] [stdout]    |                      ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/main.rs:73:10
[INFO] [stdout]    |
[INFO] [stdout] 73 |         (a, ..) => {}// 使用..来忽略除开头任意数量的值，对结构体也是一样的用法。
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/main.rs:77:10
[INFO] [stdout]    |
[INFO] [stdout] 77 |         (a, b, ..) => {}// 使用..来忽略除开头任意数量的值，对结构体也是一样的用法。
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/main.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |         (a, b, ..) => {}// 使用..来忽略除开头任意数量的值，对结构体也是一样的用法。
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:81:14
[INFO] [stdout]    |
[INFO] [stdout] 81 |         (.., e) => {}// 使用..来忽略除末尾任意数量的值，对结构体也是一样的用法。
[INFO] [stdout]    |              ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `d`
[INFO] [stdout]   --> src/main.rs:85:14
[INFO] [stdout]    |
[INFO] [stdout] 85 |         (.., d, e) => {}// 使用..来忽略除末尾任意数量的值，对结构体也是一样的用法。
[INFO] [stdout]    |              ^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:85:17
[INFO] [stdout]    |
[INFO] [stdout] 85 |         (.., d, e) => {}// 使用..来忽略除末尾任意数量的值，对结构体也是一样的用法。
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/main.rs:89:10
[INFO] [stdout]    |
[INFO] [stdout] 89 |         (a, .., e) => {}// 使用..来忽略中间任意部分的值，对结构体也是一样的用法。
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:89:17
[INFO] [stdout]    |
[INFO] [stdout] 89 |         (a, .., e) => {}// 使用..来忽略中间任意部分的值，对结构体也是一样的用法。
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/main.rs:93:10
[INFO] [stdout]    |
[INFO] [stdout] 93 |         (a, b, .., d, e) => {}// 使用..来忽略中间任意部分的值，对结构体也是一样的用法。
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/main.rs:93:13
[INFO] [stdout]    |
[INFO] [stdout] 93 |         (a, b, .., d, e) => {}// 使用..来忽略中间任意部分的值，对结构体也是一样的用法。
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `d`
[INFO] [stdout]   --> src/main.rs:93:20
[INFO] [stdout]    |
[INFO] [stdout] 93 |         (a, b, .., d, e) => {}// 使用..来忽略中间任意部分的值，对结构体也是一样的用法。
[INFO] [stdout]    |                    ^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:93:23
[INFO] [stdout]    |
[INFO] [stdout] 93 |         (a, b, .., d, e) => {}// 使用..来忽略中间任意部分的值，对结构体也是一样的用法。
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `foo` is never used
[INFO] [stdout]   --> src/main.rs:65:4
[INFO] [stdout]    |
[INFO] [stdout] 65 | fn foo(_: i32, numbers: (i32, i32, i32, i32, i32)) {
[INFO] [stdout]    |    ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "b7c8c22ec9f66e0bc91c499d10e59fa3f71ea92e26a848a2284c56e4b12f4e96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7c8c22ec9f66e0bc91c499d10e59fa3f71ea92e26a848a2284c56e4b12f4e96", kill_on_drop: false }`
[INFO] [stdout] b7c8c22ec9f66e0bc91c499d10e59fa3f71ea92e26a848a2284c56e4b12f4e96
