[INFO] cloning repository https://github.com/zaemon1251-hesty/rust_practice [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zaemon1251-hesty/rust_practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzaemon1251-hesty%2Frust_practice", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzaemon1251-hesty%2Frust_practice'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] c95dfa9f3d3b410721e5769c187f03b41fad33b6 [INFO] checking zaemon1251-hesty/rust_practice against master#f2d69d5a7c04617d122facd0a7a5bdde0af928ae for pr-138363 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzaemon1251-hesty%2Frust_practice" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/zaemon1251-hesty/rust_practice on toolchain f2d69d5a7c04617d122facd0a7a5bdde0af928ae [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f2d69d5a7c04617d122facd0a7a5bdde0af928ae" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/zaemon1251-hesty/rust_practice [INFO] finished tweaking git repo https://github.com/zaemon1251-hesty/rust_practice [INFO] tweaked toml for git repo https://github.com/zaemon1251-hesty/rust_practice written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/zaemon1251-hesty/rust_practice 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" "+f2d69d5a7c04617d122facd0a7a5bdde0af928ae" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+f2d69d5a7c04617d122facd0a7a5bdde0af928ae" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] acb511aae12be28241a69440ffe1ad927f2980103680f3b016d7f344170d132d [INFO] running `Command { std: "docker" "start" "-a" "acb511aae12be28241a69440ffe1ad927f2980103680f3b016d7f344170d132d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "acb511aae12be28241a69440ffe1ad927f2980103680f3b016d7f344170d132d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "acb511aae12be28241a69440ffe1ad927f2980103680f3b016d7f344170d132d", kill_on_drop: false }` [INFO] [stdout] acb511aae12be28241a69440ffe1ad927f2980103680f3b016d7f344170d132d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+f2d69d5a7c04617d122facd0a7a5bdde0af928ae" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 065f84eb5edf25fab2961f72c48a256e47d477327a725d6af656dd4462d61b50 [INFO] running `Command { std: "docker" "start" "-a" "065f84eb5edf25fab2961f72c48a256e47d477327a725d6af656dd4462d61b50", kill_on_drop: false }` [INFO] [stderr] Checking adder v0.1.0 (/opt/rustwide/workdir/adder) [INFO] [stderr] Checking rust_practice v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking ch10 v0.1.0 (/opt/rustwide/workdir/ch10) [INFO] [stderr] Checking binary_tree v0.1.0 (/opt/rustwide/workdir/binary_tree) [INFO] [stderr] Checking restaurant v0.1.0 (/opt/rustwide/workdir/ch09) [INFO] [stdout] warning: unused variable: `ip_addr` [INFO] [stdout] --> src/ch06.rs:6:10 [INFO] [stdout] | [INFO] [stdout] 6 | fn route(ip_addr: IpAddr) {} [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ip_addr` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `home` [INFO] [stdout] --> src/ch06.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let home = IpAddr::V4(String::from("127.0.0.1")); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_home` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `loopback` [INFO] [stdout] --> src/ch06.rs:29:9 [INFO] [stdout] | [INFO] [stdout] 29 | let loopback = IpAddr::V6(String::from("::1")); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_loopback` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `value` is never read [INFO] [stdout] --> src/main.rs:79:5 [INFO] [stdout] | [INFO] [stdout] 78 | pub struct Guess { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] 79 | value: i32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/ch06.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 2 | V4(String), [INFO] [stdout] | -- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [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] 2 - V4(String), [INFO] [stdout] 2 + V4(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/ch06.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | V6(String), [INFO] [stdout] | -- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [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] 3 - V6(String), [INFO] [stdout] 3 + V6(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `route` is never used [INFO] [stdout] --> src/ch06.rs:6:4 [INFO] [stdout] | [INFO] [stdout] 6 | fn route(ip_addr: IpAddr) {} [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Message` is never used [INFO] [stdout] --> src/ch06.rs:8:6 [INFO] [stdout] | [INFO] [stdout] 8 | enum Message { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `call` is never used [INFO] [stdout] --> src/ch06.rs:16:8 [INFO] [stdout] | [INFO] [stdout] 15 | impl Message { [INFO] [stdout] | ------------ method in this implementation [INFO] [stdout] 16 | fn call(&self) {} [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `iflet` is never used [INFO] [stdout] --> src/ch06.rs:36:4 [INFO] [stdout] | [INFO] [stdout] 36 | fn iflet() { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `serve_order` is never used [INFO] [stdout] --> ch09/src/lib.rs:48:4 [INFO] [stdout] | [INFO] [stdout] 48 | fn serve_order() {} [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `seat_at_table` is never used [INFO] [stdout] --> ch09/src/lib.rs:20:12 [INFO] [stdout] | [INFO] [stdout] 20 | fn seat_at_table() {} [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `take_order` is never used [INFO] [stdout] --> ch09/src/lib.rs:24:12 [INFO] [stdout] | [INFO] [stdout] 24 | fn take_order() {} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `serve_order` is never used [INFO] [stdout] --> ch09/src/lib.rs:26:12 [INFO] [stdout] | [INFO] [stdout] 26 | fn serve_order() {} [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `take_payment` is never used [INFO] [stdout] --> ch09/src/lib.rs:28:12 [INFO] [stdout] | [INFO] [stdout] 28 | fn take_payment() {} [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `seasonal_fruit` is never read [INFO] [stdout] --> ch09/src/lib.rs:53:9 [INFO] [stdout] | [INFO] [stdout] 51 | pub struct Breakfast { [INFO] [stdout] | --------- field in this struct [INFO] [stdout] 52 | pub toast: String, [INFO] [stdout] 53 | seasonal_fruit: String, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Appetizer` is never used [INFO] [stdout] --> ch09/src/lib.rs:56:14 [INFO] [stdout] | [INFO] [stdout] 56 | pub enum Appetizer { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `fix_incorrect_order` is never used [INFO] [stdout] --> ch09/src/lib.rs:70:8 [INFO] [stdout] | [INFO] [stdout] 70 | fn fix_incorrect_order() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `cook_order` is never used [INFO] [stdout] --> ch09/src/lib.rs:75:8 [INFO] [stdout] | [INFO] [stdout] 75 | fn cook_order() {} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> ch10/src/main.rs:127:18 [INFO] [stdout] | [INFO] [stdout] 127 | fn longest_b<'a>(x: &str, y: &str) -> String { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> ch10/src/main.rs:127:27 [INFO] [stdout] | [INFO] [stdout] 127 | fn longest_b<'a>(x: &str, y: &str) -> String { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `longest` is never used [INFO] [stdout] --> ch10/src/main.rs:119:4 [INFO] [stdout] | [INFO] [stdout] 119 | fn longest<'a, T: ExactSizeIterator>(x: &'a T, y: &'a T) -> &'a T { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `longest_b` is never used [INFO] [stdout] --> ch10/src/main.rs:127:4 [INFO] [stdout] | [INFO] [stdout] 127 | fn longest_b<'a>(x: &str, y: &str) -> String { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `part` is never read [INFO] [stdout] --> ch10/src/main.rs:135:5 [INFO] [stdout] | [INFO] [stdout] 134 | struct ImportantExcerpt<'a> { [INFO] [stdout] | ---------------- field in this struct [INFO] [stdout] 135 | part: &'a str, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ImportantExcerpt` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `level` is never used [INFO] [stdout] --> ch10/src/main.rs:139:8 [INFO] [stdout] | [INFO] [stdout] 138 | impl<'a> ImportantExcerpt<'a> { [INFO] [stdout] | ----------------------------- method in this implementation [INFO] [stdout] 139 | fn level(&self) -> i32 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `longest_with_an_announcement` is never used [INFO] [stdout] --> ch10/src/main.rs:156:4 [INFO] [stdout] | [INFO] [stdout] 156 | fn longest_with_an_announcement<'a, T>(x: &'a str, y: &'a str, ann: T) -> &'a str [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ip_addr` [INFO] [stdout] --> src/ch06.rs:6:10 [INFO] [stdout] | [INFO] [stdout] 6 | fn route(ip_addr: IpAddr) {} [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ip_addr` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `serve_order` is never used [INFO] [stdout] --> ch09/src/lib.rs:48:4 [INFO] [stdout] | [INFO] [stdout] 48 | fn serve_order() {} [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `seat_at_table` is never used [INFO] [stdout] --> ch09/src/lib.rs:20:12 [INFO] [stdout] | [INFO] [stdout] 20 | fn seat_at_table() {} [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `take_order` is never used [INFO] [stdout] --> ch09/src/lib.rs:24:12 [INFO] [stdout] | [INFO] [stdout] 24 | fn take_order() {} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `serve_order` is never used [INFO] [stdout] --> ch09/src/lib.rs:26:12 [INFO] [stdout] | [INFO] [stdout] 26 | fn serve_order() {} [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `take_payment` is never used [INFO] [stdout] --> ch09/src/lib.rs:28:12 [INFO] [stdout] | [INFO] [stdout] 28 | fn take_payment() {} [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `seasonal_fruit` is never read [INFO] [stdout] --> ch09/src/lib.rs:53:9 [INFO] [stdout] | [INFO] [stdout] 51 | pub struct Breakfast { [INFO] [stdout] | --------- field in this struct [INFO] [stdout] 52 | pub toast: String, [INFO] [stdout] 53 | seasonal_fruit: String, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Appetizer` is never used [INFO] [stdout] --> ch09/src/lib.rs:56:14 [INFO] [stdout] | [INFO] [stdout] 56 | pub enum Appetizer { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `fix_incorrect_order` is never used [INFO] [stdout] --> ch09/src/lib.rs:70:8 [INFO] [stdout] | [INFO] [stdout] 70 | fn fix_incorrect_order() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `cook_order` is never used [INFO] [stdout] --> ch09/src/lib.rs:75:8 [INFO] [stdout] | [INFO] [stdout] 75 | fn cook_order() {} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `home` [INFO] [stdout] --> src/ch06.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let home = IpAddr::V4(String::from("127.0.0.1")); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_home` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `loopback` [INFO] [stdout] --> src/ch06.rs:29:9 [INFO] [stdout] | [INFO] [stdout] 29 | let loopback = IpAddr::V6(String::from("::1")); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_loopback` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `value` is never read [INFO] [stdout] --> src/main.rs:79:5 [INFO] [stdout] | [INFO] [stdout] 78 | pub struct Guess { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] 79 | value: i32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/ch06.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 2 | V4(String), [INFO] [stdout] | -- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [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] 2 - V4(String), [INFO] [stdout] 2 + V4(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/ch06.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | V6(String), [INFO] [stdout] | -- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [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] 3 - V6(String), [INFO] [stdout] 3 + V6(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `route` is never used [INFO] [stdout] --> src/ch06.rs:6:4 [INFO] [stdout] | [INFO] [stdout] 6 | fn route(ip_addr: IpAddr) {} [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Message` is never used [INFO] [stdout] --> src/ch06.rs:8:6 [INFO] [stdout] | [INFO] [stdout] 8 | enum Message { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `call` is never used [INFO] [stdout] --> src/ch06.rs:16:8 [INFO] [stdout] | [INFO] [stdout] 15 | impl Message { [INFO] [stdout] | ------------ method in this implementation [INFO] [stdout] 16 | fn call(&self) {} [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `iflet` is never used [INFO] [stdout] --> src/ch06.rs:36:4 [INFO] [stdout] | [INFO] [stdout] 36 | fn iflet() { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> ch10/src/main.rs:127:18 [INFO] [stdout] | [INFO] [stdout] 127 | fn longest_b<'a>(x: &str, y: &str) -> String { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> ch10/src/main.rs:127:27 [INFO] [stdout] | [INFO] [stdout] 127 | fn longest_b<'a>(x: &str, y: &str) -> String { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `longest` is never used [INFO] [stdout] --> ch10/src/main.rs:119:4 [INFO] [stdout] | [INFO] [stdout] 119 | fn longest<'a, T: ExactSizeIterator>(x: &'a T, y: &'a T) -> &'a T { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `longest_b` is never used [INFO] [stdout] --> ch10/src/main.rs:127:4 [INFO] [stdout] | [INFO] [stdout] 127 | fn longest_b<'a>(x: &str, y: &str) -> String { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `part` is never read [INFO] [stdout] --> ch10/src/main.rs:135:5 [INFO] [stdout] | [INFO] [stdout] 134 | struct ImportantExcerpt<'a> { [INFO] [stdout] | ---------------- field in this struct [INFO] [stdout] 135 | part: &'a str, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ImportantExcerpt` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `level` is never used [INFO] [stdout] --> ch10/src/main.rs:139:8 [INFO] [stdout] | [INFO] [stdout] 138 | impl<'a> ImportantExcerpt<'a> { [INFO] [stdout] | ----------------------------- method in this implementation [INFO] [stdout] 139 | fn level(&self) -> i32 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `longest_with_an_announcement` is never used [INFO] [stdout] --> ch10/src/main.rs:156:4 [INFO] [stdout] | [INFO] [stdout] 156 | fn longest_with_an_announcement<'a, T>(x: &'a str, y: &'a str, ann: T) -> &'a str [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.71s [INFO] running `Command { std: "docker" "inspect" "065f84eb5edf25fab2961f72c48a256e47d477327a725d6af656dd4462d61b50", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "065f84eb5edf25fab2961f72c48a256e47d477327a725d6af656dd4462d61b50", kill_on_drop: false }` [INFO] [stdout] 065f84eb5edf25fab2961f72c48a256e47d477327a725d6af656dd4462d61b50