[INFO] cloning repository https://github.com/YoruAi/RustStudy [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/YoruAi/RustStudy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYoruAi%2FRustStudy", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYoruAi%2FRustStudy'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 3520973f0097d52a13779d1137493ca9e422d5c0 [INFO] checking YoruAi/RustStudy against try#39605810efb1a0d52f955bfba9e4eec7a01d5deb for pr-153692 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYoruAi%2FRustStudy" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] removed /workspace/builds/worker-1-tc2/source/.cargo/config.toml [INFO] started tweaking git repo https://github.com/YoruAi/RustStudy [INFO] finished tweaking git repo https://github.com/YoruAi/RustStudy [INFO] tweaked toml for git repo https://github.com/YoruAi/RustStudy written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/YoruAi/RustStudy on toolchain 39605810efb1a0d52f955bfba9e4eec7a01d5deb [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39605810efb1a0d52f955bfba9e4eec7a01d5deb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/YoruAi/RustStudy 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" "+39605810efb1a0d52f955bfba9e4eec7a01d5deb" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+39605810efb1a0d52f955bfba9e4eec7a01d5deb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 2faed1fe709cf0fd7284935cb2516ebf7cb83987764b8bfc84bb7f3e67cedf4d [INFO] running `Command { std: "docker" "start" "-a" "2faed1fe709cf0fd7284935cb2516ebf7cb83987764b8bfc84bb7f3e67cedf4d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2faed1fe709cf0fd7284935cb2516ebf7cb83987764b8bfc84bb7f3e67cedf4d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2faed1fe709cf0fd7284935cb2516ebf7cb83987764b8bfc84bb7f3e67cedf4d", kill_on_drop: false }` [INFO] [stdout] 2faed1fe709cf0fd7284935cb2516ebf7cb83987764b8bfc84bb7f3e67cedf4d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+39605810efb1a0d52f955bfba9e4eec7a01d5deb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7e3d9e7ebc974e7371bfd8e14b548a7fdaa686e9e719ed7dc733ef92bf0434dc [INFO] running `Command { std: "docker" "start" "-a" "7e3d9e7ebc974e7371bfd8e14b548a7fdaa686e9e719ed7dc733ef92bf0434dc", kill_on_drop: false }` [INFO] [stderr] Compiling zerocopy v0.8.39 [INFO] [stderr] Checking futures-io v0.3.32 [INFO] [stderr] Compiling syn v2.0.117 [INFO] [stderr] Checking getrandom v0.2.17 [INFO] [stderr] Checking bitflags v2.11.0 [INFO] [stderr] Compiling siphasher v1.0.2 [INFO] [stderr] Compiling libm v0.2.16 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Checking getrandom v0.3.4 [INFO] [stderr] Checking dtoa v1.0.11 [INFO] [stderr] Compiling proc-macro2-diagnostics v0.10.1 [INFO] [stderr] Compiling yansi v1.0.1 [INFO] [stderr] Compiling num-conv v0.2.0 [INFO] [stderr] Compiling time-core v0.1.8 [INFO] [stderr] Checking indexmap v2.13.0 [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Compiling phf_shared v0.11.3 [INFO] [stderr] Checking dtoa-short v0.3.5 [INFO] [stderr] Compiling time-macros v0.2.27 [INFO] [stderr] Checking digest v0.10.7 [INFO] [stderr] Compiling hello-macro-function v0.1.0 (/opt/rustwide/workdir/chapter20-advanced-features/hello-macro-function) [INFO] [stderr] Checking deranged v0.5.8 [INFO] [stderr] Checking base64ct v1.8.3 [INFO] [stderr] Compiling serde_json v1.0.149 [INFO] [stderr] Checking ring v0.17.14 [INFO] [stderr] Checking spin v0.9.8 [INFO] [stderr] Compiling bigdecimal v0.4.10 [INFO] [stderr] Checking pem-rfc7468 v0.7.0 [INFO] [stderr] Checking chapter12-io-project v0.1.0 (/opt/rustwide/workdir/chapter12-io-project) [INFO] [stderr] Compiling itoa v1.0.17 [INFO] [stderr] Compiling rust_decimal v1.40.0 [INFO] [stderr] Compiling cookie v0.18.1 [INFO] [stderr] Checking unicode-ident v1.0.24 [INFO] [stderr] Checking arrayvec v0.7.6 [INFO] [stderr] Checking der v0.7.10 [INFO] [stderr] Compiling futures-core v0.3.32 [INFO] [stderr] Compiling num-bigint-dig v0.8.6 [INFO] [stderr] Compiling futures-sink v0.3.32 [INFO] [stderr] Compiling ref-cast v1.0.25 [INFO] [stderr] Checking hashbrown v0.15.5 [INFO] [stderr] Checking proc-macro2 v1.0.106 [INFO] [stderr] Checking lazy_static v1.5.0 [INFO] [stderr] Checking concurrent-queue v2.5.0 [INFO] [stderr] Checking uuid v1.21.0 [INFO] [stderr] Compiling futures-task v0.3.32 [INFO] [stderr] Compiling bytes v1.11.1 [INFO] [stderr] Checking event-listener v5.4.1 [INFO] [stderr] Compiling futures-util v0.3.32 [INFO] [stderr] Checking quote v1.0.44 [INFO] [stderr] Checking hashlink v0.10.0 [INFO] [stderr] Checking http v0.2.12 [INFO] [stderr] Compiling tracing-core v0.1.36 [INFO] [stderr] Compiling futures-channel v0.3.32 [INFO] [stderr] Checking spki v0.7.3 [INFO] [stderr] Checking rustls-webpki v0.103.9 [INFO] [stderr] Checking sha2 v0.10.9 [INFO] [stderr] Checking pkcs8 v0.10.2 [INFO] [stderr] Checking signature v2.2.0 [INFO] [stderr] Checking hmac v0.12.1 [INFO] [stderr] Checking webpki-roots v0.26.11 [INFO] [stderr] Checking futures-intrusive v0.5.0 [INFO] [stderr] Checking is-terminal v0.4.17 [INFO] [stderr] Checking pkcs1 v0.7.5 [INFO] [stderr] Compiling mio v1.1.1 [INFO] [stderr] Compiling socket2 v0.6.2 [INFO] [stderr] Compiling uncased v0.9.10 [INFO] [stderr] Compiling try-lock v0.2.5 [INFO] [stderr] Compiling want v0.3.1 [INFO] [stderr] Checking rustls v0.23.36 [INFO] [stderr] Checking num-integer v0.1.46 [INFO] [stderr] Checking atoi v2.0.0 [INFO] [stderr] Checking hkdf v0.12.4 [INFO] [stderr] Compiling tracing v0.1.44 [INFO] [stderr] Compiling http-body v0.4.6 [INFO] [stderr] Checking sha1 v0.10.6 [INFO] [stderr] Checking md-5 v0.10.6 [INFO] [stderr] Compiling httparse v1.10.1 [INFO] [stderr] Compiling tokio v1.49.0 [INFO] [stderr] Compiling proc-macro-error-attr2 v2.0.0 [INFO] [stderr] Compiling socket2 v0.5.10 [INFO] [stderr] Compiling memchr v2.8.0 [INFO] [stderr] Checking num-bigint v0.4.6 [INFO] [stderr] Checking num-iter v0.1.45 [INFO] [stderr] Checking time v0.3.47 [INFO] [stderr] Compiling tower-service v0.3.3 [INFO] [stderr] Checking ordered-float v4.6.0 [INFO] [stderr] Checking inout v0.1.4 [INFO] [stderr] Compiling multer v3.1.0 [INFO] [stderr] Compiling figment v0.10.19 [INFO] [stderr] Checking chapter11-tests v0.1.0 (/opt/rustwide/workdir/chapter11-tests) [INFO] [stderr] Compiling smallvec v1.15.1 [INFO] [stderr] Compiling either v1.15.0 [INFO] [stderr] Checking rustix v1.1.4 [INFO] [stderr] Checking cipher v0.4.4 [INFO] [stderr] Compiling stable-pattern v0.1.0 [INFO] [stderr] Compiling futures v0.3.32 [INFO] [stderr] Compiling rocket v0.5.1 [INFO] [stderr] Checking chapter21-web-server-project v0.1.0 (/opt/rustwide/workdir/chapter21-web-server-project) [INFO] [stderr] Checking aliasable v0.1.3 [INFO] [stderr] Checking blowfish v0.9.1 [INFO] [stderr] Checking num_cpus v1.17.0 [INFO] [stderr] Checking strum v0.26.3 [INFO] [stderr] Checking bcrypt v0.18.0 [INFO] [stdout] warning: function `add` is never used [INFO] [stdout] --> chapter11-tests/src/bin/tests.rs:11:4 [INFO] [stdout] | [INFO] [stdout] 11 | fn add(a: u32, b: u32) -> u32 { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking chapter13-functional-features v0.1.0 (/opt/rustwide/workdir/chapter13-functional-features) [INFO] [stdout] warning: unused variable: `closure` [INFO] [stdout] --> chapter13-functional-features/src/bin/closures.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | let closure = |num: u32| -> u32 { num }; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_closure` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> chapter13-functional-features/src/bin/closures.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let s = closure(String::from("hello")); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> chapter13-functional-features/src/bin/iterator.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | let mut v1 = vec![1, 2, 3]; [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v1_iter` [INFO] [stdout] --> chapter13-functional-features/src/bin/iterator.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let v1_iter = v1.iter(); // & [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_v1_iter` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v1_iter` [INFO] [stdout] --> chapter13-functional-features/src/bin/iterator.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | let v1_iter = v1.iter_mut(); // &mut [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_v1_iter` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `count` [INFO] [stdout] --> chapter13-functional-features/src/bin/iterator.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | let count = v1.iter().count(); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_count` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `collect` [INFO] [stdout] --> chapter13-functional-features/src/bin/iterator.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | let collect: Vec = v1.iter().copied().collect(); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_collect` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking appendix v0.1.0 (/opt/rustwide/workdir/appendix) [INFO] [stderr] Checking chapter05-structs v0.1.0 (/opt/rustwide/workdir/chapter05-structs) [INFO] [stdout] warning: unused variable: `closure` [INFO] [stdout] --> chapter13-functional-features/src/bin/closures.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | let closure = |num: u32| -> u32 { num }; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_closure` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> chapter13-functional-features/src/bin/closures.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let s = closure(String::from("hello")); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking chapter15-smart-pointer v0.1.0 (/opt/rustwide/workdir/chapter15-smart-pointer) [INFO] [stderr] Checking chapter07-crates-and-modules v0.1.0 (/opt/rustwide/workdir/chapter07-crates-and-modules) [INFO] [stderr] Checking chapter03-common-concepts v0.1.0 (/opt/rustwide/workdir/chapter03-common-concepts) [INFO] [stdout] warning: unused variable: `name` [INFO] [stdout] --> chapter15-smart-pointer/src/bin/deref.rs:12:14 [INFO] [stdout] | [INFO] [stdout] 12 | fn hello(name: &str) {} [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_name` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> chapter13-functional-features/src/bin/iterator.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | let mut v1 = vec![1, 2, 3]; [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v1_iter` [INFO] [stdout] --> chapter13-functional-features/src/bin/iterator.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let v1_iter = v1.iter(); // & [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_v1_iter` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v1_iter` [INFO] [stdout] --> chapter13-functional-features/src/bin/iterator.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | let v1_iter = v1.iter_mut(); // &mut [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_v1_iter` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `count` [INFO] [stdout] --> chapter13-functional-features/src/bin/iterator.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | let count = v1.iter().count(); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_count` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `collect` [INFO] [stdout] --> chapter13-functional-features/src/bin/iterator.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | let collect: Vec = v1.iter().copied().collect(); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_collect` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking chapter14-cargo v0.1.0 (/opt/rustwide/workdir/chapter14-cargo) [INFO] [stderr] Checking chapter08-collections v0.1.0 (/opt/rustwide/workdir/chapter08-collections) [INFO] [stdout] warning: fields `x` and `y` are never read [INFO] [stdout] --> chapter07-crates-and-modules/src/bin/paths.rs:23:17 [INFO] [stdout] | [INFO] [stdout] 22 | pub struct SubInner { [INFO] [stdout] | -------- fields in this struct [INFO] [stdout] 23 | pub x: i32, [INFO] [stdout] | ^ [INFO] [stdout] 24 | y: i32, // private [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `SubInnerEnum` is never used [INFO] [stdout] --> chapter07-crates-and-modules/src/bin/paths.rs:32:18 [INFO] [stdout] | [INFO] [stdout] 32 | pub enum SubInnerEnum { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking chapter01-helloworld v0.1.0 (/opt/rustwide/workdir/chapter01-helloworld) [INFO] [stderr] Checking chapter18-object-oriented v0.1.0 (/opt/rustwide/workdir/chapter18-object-oriented) [INFO] [stderr] Checking chapter19-patterns-and-matching v0.1.0 (/opt/rustwide/workdir/chapter19-patterns-and-matching) [INFO] [stderr] Compiling synstructure v0.13.2 [INFO] [stdout] warning: struct `Point` is never constructed [INFO] [stdout] --> appendix/src/bin/c.rs:25:12 [INFO] [stdout] | [INFO] [stdout] 25 | struct Point { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling proc-macro-error2 v2.0.1 [INFO] [stderr] Checking chapter10-generic-traits-lifetimes v0.1.0 (/opt/rustwide/workdir/chapter10-generic-traits-lifetimes) [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> chapter15-smart-pointer/src/bin/drop.rs:2:9 [INFO] [stdout] | [INFO] [stdout] 2 | let c = CustomSmartPointer { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `result` [INFO] [stdout] --> chapter10-generic-traits-lifetimes/src/bin/generic.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | let result = largest(&number_list); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `x` is never read [INFO] [stdout] --> chapter10-generic-traits-lifetimes/src/bin/generic.rs:23:5 [INFO] [stdout] | [INFO] [stdout] 22 | struct Point { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] 23 | x: T, [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `x` and `mix` are never used [INFO] [stdout] --> chapter10-generic-traits-lifetimes/src/bin/generic.rs:28:8 [INFO] [stdout] | [INFO] [stdout] 27 | impl Point { [INFO] [stdout] | ---------------------- methods in this implementation [INFO] [stdout] 28 | fn x(&self) -> &T { [INFO] [stdout] | ^ [INFO] [stdout] ... [INFO] [stdout] 31 | fn mix(self, other: Point) -> Point { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling devise_core v0.4.2 [INFO] [stderr] Checking chapter16-concurrency v0.1.0 (/opt/rustwide/workdir/chapter16-concurrency) [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> chapter16-concurrency/src/bin/message_passing.rs:29:9 [INFO] [stdout] | [INFO] [stdout] 29 | let err = rx.try_recv().unwrap_err(); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> chapter08-collections/src/bin/vector.rs:2:9 [INFO] [stdout] | [INFO] [stdout] 2 | let mut v: Vec = Vec::new(); // omitted type if compiler can infer [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> chapter08-collections/src/bin/vector.rs:2:9 [INFO] [stdout] | [INFO] [stdout] 2 | let mut v: Vec = Vec::new(); // omitted type if compiler can infer [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: `third` [INFO] [stdout] --> chapter08-collections/src/bin/vector.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let third = v.get(2); // will return None if out of bounds [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_third` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `row` [INFO] [stdout] --> chapter08-collections/src/bin/vector.rs:25:9 [INFO] [stdout] | [INFO] [stdout] 25 | let row = vec![ [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_row` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> chapter08-collections/src/bin/vector.rs:21:13 [INFO] [stdout] | [INFO] [stdout] 21 | Int(i32), [INFO] [stdout] | --- ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) 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] 21 - Int(i32), [INFO] [stdout] 21 + Int(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> chapter08-collections/src/bin/vector.rs:22:15 [INFO] [stdout] | [INFO] [stdout] 22 | Float(f64), [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] 22 - Float(f64), [INFO] [stdout] 22 + Float(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> chapter08-collections/src/bin/vector.rs:23:14 [INFO] [stdout] | [INFO] [stdout] 23 | Text(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] 23 - Text(String), [INFO] [stdout] 23 + Text(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking tempfile v3.26.0 [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> chapter19-patterns-and-matching/src/bin/pattern_syntax.rs:42:20 [INFO] [stdout] | [INFO] [stdout] 42 | let Point { x: a, y: b } = p; [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: `b` [INFO] [stdout] --> chapter19-patterns-and-matching/src/bin/pattern_syntax.rs:42:26 [INFO] [stdout] | [INFO] [stdout] 42 | let Point { x: a, y: b } = p; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> chapter19-patterns-and-matching/src/bin/pattern_syntax.rs:43:17 [INFO] [stdout] | [INFO] [stdout] 43 | let Point { x, y } = p; // shorthand [INFO] [stdout] | ^ help: try ignoring the field: `x: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> chapter19-patterns-and-matching/src/bin/pattern_syntax.rs:43:20 [INFO] [stdout] | [INFO] [stdout] 43 | let Point { x, y } = p; // shorthand [INFO] [stdout] | ^ help: try ignoring the field: `y: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `feet` [INFO] [stdout] --> chapter19-patterns-and-matching/src/bin/pattern_syntax.rs:84:11 [INFO] [stdout] | [INFO] [stdout] 84 | let ((feet, inches), Point { x, y }) = ((3, 10), Point { x: 3, y: -10 }); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_feet` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `inches` [INFO] [stdout] --> chapter19-patterns-and-matching/src/bin/pattern_syntax.rs:84:17 [INFO] [stdout] | [INFO] [stdout] 84 | let ((feet, inches), Point { x, y }) = ((3, 10), Point { x: 3, y: -10 }); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_inches` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> chapter19-patterns-and-matching/src/bin/pattern_syntax.rs:84:34 [INFO] [stdout] | [INFO] [stdout] 84 | let ((feet, inches), Point { x, y }) = ((3, 10), Point { x: 3, y: -10 }); [INFO] [stdout] | ^ help: try ignoring the field: `x: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> chapter19-patterns-and-matching/src/bin/pattern_syntax.rs:84:37 [INFO] [stdout] | [INFO] [stdout] 84 | let ((feet, inches), Point { x, y }) = ((3, 10), Point { x: 3, y: -10 }); [INFO] [stdout] | ^ help: try ignoring the field: `y: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> chapter19-patterns-and-matching/src/bin/pattern_syntax.rs:92:10 [INFO] [stdout] | [INFO] [stdout] 92 | let (a, .., d) = (1, 2, 3, 4); // ignore remaining parts of a value(unambiguous) [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `d` [INFO] [stdout] --> chapter19-patterns-and-matching/src/bin/pattern_syntax.rs:92:17 [INFO] [stdout] | [INFO] [stdout] 92 | let (a, .., d) = (1, 2, 3, 4); // ignore remaining parts of a value(unambiguous) [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_d` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> chapter16-concurrency/src/bin/message_passing.rs:29:9 [INFO] [stdout] | [INFO] [stdout] 29 | let err = rx.try_recv().unwrap_err(); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> chapter15-smart-pointer/src/bin/ptr_rc.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | let b = Cons(3, Rc::clone(&a)); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [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] --> chapter15-smart-pointer/src/bin/ptr_rc.rs:20:13 [INFO] [stdout] | [INFO] [stdout] 20 | let c = Cons(4, Rc::clone(&a)); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> chapter08-collections/src/bin/vector.rs:2:9 [INFO] [stdout] | [INFO] [stdout] 2 | let mut v: Vec = Vec::new(); // omitted type if compiler can infer [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> chapter08-collections/src/bin/vector.rs:2:9 [INFO] [stdout] | [INFO] [stdout] 2 | let mut v: Vec = Vec::new(); // omitted type if compiler can infer [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: `a` [INFO] [stdout] --> chapter19-patterns-and-matching/src/bin/pattern_syntax.rs:42:20 [INFO] [stdout] | [INFO] [stdout] 42 | let Point { x: a, y: b } = p; [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: `b` [INFO] [stdout] --> chapter19-patterns-and-matching/src/bin/pattern_syntax.rs:42:26 [INFO] [stdout] | [INFO] [stdout] 42 | let Point { x: a, y: b } = p; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> chapter19-patterns-and-matching/src/bin/pattern_syntax.rs:43:17 [INFO] [stdout] | [INFO] [stdout] 43 | let Point { x, y } = p; // shorthand [INFO] [stdout] | ^ help: try ignoring the field: `x: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> chapter19-patterns-and-matching/src/bin/pattern_syntax.rs:43:20 [INFO] [stdout] | [INFO] [stdout] 43 | let Point { x, y } = p; // shorthand [INFO] [stdout] | ^ help: try ignoring the field: `y: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `feet` [INFO] [stdout] --> chapter19-patterns-and-matching/src/bin/pattern_syntax.rs:84:11 [INFO] [stdout] | [INFO] [stdout] 84 | let ((feet, inches), Point { x, y }) = ((3, 10), Point { x: 3, y: -10 }); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_feet` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `inches` [INFO] [stdout] --> chapter19-patterns-and-matching/src/bin/pattern_syntax.rs:84:17 [INFO] [stdout] | [INFO] [stdout] 84 | let ((feet, inches), Point { x, y }) = ((3, 10), Point { x: 3, y: -10 }); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_inches` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> chapter19-patterns-and-matching/src/bin/pattern_syntax.rs:84:34 [INFO] [stdout] | [INFO] [stdout] 84 | let ((feet, inches), Point { x, y }) = ((3, 10), Point { x: 3, y: -10 }); [INFO] [stdout] | ^ help: try ignoring the field: `x: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> chapter19-patterns-and-matching/src/bin/pattern_syntax.rs:84:37 [INFO] [stdout] | [INFO] [stdout] 84 | let ((feet, inches), Point { x, y }) = ((3, 10), Point { x: 3, y: -10 }); [INFO] [stdout] | ^ help: try ignoring the field: `y: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> chapter19-patterns-and-matching/src/bin/pattern_syntax.rs:92:10 [INFO] [stdout] | [INFO] [stdout] 92 | let (a, .., d) = (1, 2, 3, 4); // ignore remaining parts of a value(unambiguous) [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `d` [INFO] [stdout] --> chapter19-patterns-and-matching/src/bin/pattern_syntax.rs:92:17 [INFO] [stdout] | [INFO] [stdout] 92 | let (a, .., d) = (1, 2, 3, 4); // ignore remaining parts of a value(unambiguous) [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_d` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Rgb` is never constructed [INFO] [stdout] --> chapter19-patterns-and-matching/src/bin/pattern_syntax.rs:55:9 [INFO] [stdout] | [INFO] [stdout] 54 | enum Color { [INFO] [stdout] | ----- variant in this enum [INFO] [stdout] 55 | Rgb(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] [stdout] warning: variants `Quit`, `Move`, and `Write` are never constructed [INFO] [stdout] --> chapter19-patterns-and-matching/src/bin/pattern_syntax.rs:59:9 [INFO] [stdout] | [INFO] [stdout] 58 | enum Message { [INFO] [stdout] | ------- variants in this enum [INFO] [stdout] 59 | Quit, [INFO] [stdout] | ^^^^ [INFO] [stdout] 60 | Move { x: i32, y: i32 }, [INFO] [stdout] | ^^^^ [INFO] [stdout] 61 | Write(String), [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `foo` is never used [INFO] [stdout] --> chapter19-patterns-and-matching/src/bin/pattern_syntax.rs:87:8 [INFO] [stdout] | [INFO] [stdout] 87 | fn foo(_: i32, y: i32) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `third` [INFO] [stdout] --> chapter08-collections/src/bin/vector.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let third = v.get(2); // will return None if out of bounds [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_third` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `row` [INFO] [stdout] --> chapter08-collections/src/bin/vector.rs:25:9 [INFO] [stdout] | [INFO] [stdout] 25 | let row = vec![ [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_row` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> chapter15-smart-pointer/src/bin/ptr_rc.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | let b = Cons(3, Rc::clone(&a)); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [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] --> chapter15-smart-pointer/src/bin/ptr_rc.rs:20:13 [INFO] [stdout] | [INFO] [stdout] 20 | let c = Cons(4, Rc::clone(&a)); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> chapter15-smart-pointer/src/bin/ptr_rc.rs:10:14 [INFO] [stdout] | [INFO] [stdout] 10 | Cons(i32, Rc), [INFO] [stdout] | ---- ^^^ ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 10 - Cons(i32, Rc), [INFO] [stdout] 10 + Cons((), ()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `syn` (lib) [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/39605810efb1a0d52f955bfba9e4eec7a01d5deb/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.117/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="fold"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "test", "visit", "visit-mut"))' -C metadata=ceb78e5bef6e4cb3 -C extra-filename=-7c7437438a104b4b --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-d4cb564e807a9cd7.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-28532d321a976b97.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-8c98a1a0e58216a9.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill) [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> chapter19-patterns-and-matching/src/bin/patterns_places.rs:10:17 [INFO] [stdout] | [INFO] [stdout] 10 | if let Some(i) = x { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> chapter19-patterns-and-matching/src/bin/patterns_places.rs:13:14 [INFO] [stdout] | [INFO] [stdout] 13 | let Some(i) = x else { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> chapter19-patterns-and-matching/src/bin/patterns_places.rs:17:20 [INFO] [stdout] | [INFO] [stdout] 17 | while let Some(i) = x { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `index` [INFO] [stdout] --> chapter19-patterns-and-matching/src/bin/patterns_places.rs:21:10 [INFO] [stdout] | [INFO] [stdout] 21 | for (index, value) in v.iter().enumerate() {} [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_index` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `value` [INFO] [stdout] --> chapter19-patterns-and-matching/src/bin/patterns_places.rs:21:17 [INFO] [stdout] | [INFO] [stdout] 21 | for (index, value) in v.iter().enumerate() {} [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_value` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> chapter19-patterns-and-matching/src/bin/patterns_places.rs:23:10 [INFO] [stdout] | [INFO] [stdout] 23 | let (x, y) = (1, 2); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> chapter19-patterns-and-matching/src/bin/patterns_places.rs:23:13 [INFO] [stdout] | [INFO] [stdout] 23 | let (x, y) = (1, 2); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> chapter19-patterns-and-matching/src/bin/patterns_places.rs:25:22 [INFO] [stdout] | [INFO] [stdout] 25 | fn coordinates(&(x, y): &(i32, i32)) {} [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> chapter19-patterns-and-matching/src/bin/patterns_places.rs:25:25 [INFO] [stdout] | [INFO] [stdout] 25 | fn coordinates(&(x, y): &(i32, i32)) {} [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "7e3d9e7ebc974e7371bfd8e14b548a7fdaa686e9e719ed7dc733ef92bf0434dc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7e3d9e7ebc974e7371bfd8e14b548a7fdaa686e9e719ed7dc733ef92bf0434dc", kill_on_drop: false }` [INFO] [stdout] 7e3d9e7ebc974e7371bfd8e14b548a7fdaa686e9e719ed7dc733ef92bf0434dc