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"fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root: [INFO] [stderr] package: /workspace/builds/worker-3-tc2/source/chapters/Cargo.toml [INFO] [stderr] workspace: /workspace/builds/worker-3-tc2/source/Cargo.toml [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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9a80262b160af0498dce12c274483f64c03c2df8ad9672119af7ff3c5ec04693 [INFO] running `Command { std: "docker" "start" "-a" "9a80262b160af0498dce12c274483f64c03c2df8ad9672119af7ff3c5ec04693", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9a80262b160af0498dce12c274483f64c03c2df8ad9672119af7ff3c5ec04693", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9a80262b160af0498dce12c274483f64c03c2df8ad9672119af7ff3c5ec04693", kill_on_drop: false }` [INFO] [stdout] 9a80262b160af0498dce12c274483f64c03c2df8ad9672119af7ff3c5ec04693 [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 -Dtail_expr_drop_order" "-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" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b0c46a408b833dd13be6de5e45fcc9b45453cec170779afad478d924f0365963 [INFO] running `Command { std: "docker" "start" "-a" "b0c46a408b833dd13be6de5e45fcc9b45453cec170779afad478d924f0365963", kill_on_drop: false }` [INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root: [INFO] [stderr] package: /opt/rustwide/workdir/chapters/Cargo.toml [INFO] [stderr] workspace: /opt/rustwide/workdir/Cargo.toml [INFO] [stderr] Compiling libc v0.2.155 [INFO] [stderr] Compiling zerocopy v0.8.0-alpha.6 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking ppv-lite86 v0.2.17 [INFO] [stderr] Compiling proc-macro2 v1.0.85 [INFO] [stderr] Compiling unicode-ident v1.0.12 [INFO] [stderr] Compiling autocfg v1.3.0 [INFO] [stderr] Checking futures-sink v0.3.30 [INFO] [stderr] Checking futures-core v0.3.30 [INFO] [stderr] Checking memchr v2.7.4 [INFO] [stderr] Checking pin-utils v0.1.0 [INFO] [stderr] Checking pin-project-lite v0.2.14 [INFO] [stderr] Checking futures-task v0.3.30 [INFO] [stderr] Checking futures-io v0.3.30 [INFO] [stderr] Checking mini_grep v0.1.0 (/opt/rustwide/workdir/mini_grep) [INFO] [stderr] Checking oop_state_pattern v0.1.0 (/opt/rustwide/workdir/oop_state_pattern) [INFO] [stderr] Checking futures-channel v0.3.30 [INFO] [stderr] Compiling slab v0.4.9 [INFO] [stderr] Compiling quote v1.0.36 [INFO] [stderr] Compiling syn v2.0.66 [INFO] [stderr] Checking getrandom v0.2.15 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking rand_core v0.9.0-alpha.1 [INFO] [stderr] Checking rand_chacha v0.9.0-alpha.1 [INFO] [stderr] Checking rand v0.9.0-alpha.1 [INFO] [stderr] Checking chapters v0.1.0 (/opt/rustwide/workdir/chapters) [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> chapters/src/bin/chapter_18_matching.rs:8:20 [INFO] [stdout] | [INFO] [stdout] 8 | let Point { x: x, y: y } = p; //ex: 1 [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] --> chapters/src/bin/chapter_18_matching.rs:8:26 [INFO] [stdout] | [INFO] [stdout] 8 | let Point { x: x, y: y } = p; //ex: 1 [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] --> chapters/src/bin/chapter_18_matching.rs:9:17 [INFO] [stdout] | [INFO] [stdout] 9 | let Point { x, y } = p; //ex: 2 [INFO] [stdout] | ^ help: try ignoring the field: `x: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> chapters/src/bin/chapter_18_matching.rs:9:20 [INFO] [stdout] | [INFO] [stdout] 9 | let Point { x, y } = p; //ex: 2 [INFO] [stdout] | ^ help: try ignoring the field: `y: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::rc::Rc` [INFO] [stdout] --> chapters/src/bin/chapter_15_box.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::rc::Rc; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the `x:` in this pattern is redundant [INFO] [stdout] --> chapters/src/bin/chapter_18_matching.rs:8:17 [INFO] [stdout] | [INFO] [stdout] 8 | let Point { x: x, y: y } = p; //ex: 1 [INFO] [stdout] | ^^^^ help: use shorthand field pattern: `x` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_shorthand_field_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the `y:` in this pattern is redundant [INFO] [stdout] --> chapters/src/bin/chapter_18_matching.rs:8:23 [INFO] [stdout] | [INFO] [stdout] 8 | let Point { x: x, y: y } = p; //ex: 1 [INFO] [stdout] | ^^^^ help: use shorthand field pattern: `y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fs` [INFO] [stdout] --> chapters/src/bin/chapter_9_error.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::fs; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `item1` [INFO] [stdout] --> chapters/src/bin/chapter_10_generics.rs:22:18 [INFO] [stdout] | [INFO] [stdout] 22 | pub fn some_func(item1: &impl PartialOrd) {} [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_item1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> chapters/src/bin/chapter_10_generics.rs:30:24 [INFO] [stdout] | [INFO] [stdout] 30 | fn some_function(t: &T, u: &U) -> i32 [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `u` [INFO] [stdout] --> chapters/src/bin/chapter_10_generics.rs:30:31 [INFO] [stdout] | [INFO] [stdout] 30 | fn some_function(t: &T, u: &U) -> i32 [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_u` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s2` [INFO] [stdout] --> chapters/src/bin/chapter_4_borrowing.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | let s2 = s1; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s2` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `some_function` is never used [INFO] [stdout] --> chapters/src/bin/chapter_10_generics.rs:30:4 [INFO] [stdout] | [INFO] [stdout] 30 | fn some_function(t: &T, u: &U) -> i32 [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `file` [INFO] [stdout] --> chapters/src/bin/chapter_9_error.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let file = File::open("text.txt").unwrap_or_else(|error| { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_file` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> chapters/src/bin/chapter_10_1_lifetime.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | let s: &'static str = "I have a static lifetime."; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `longest_with_an_announcement` is never used [INFO] [stdout] --> chapters/src/bin/chapter_10_1_lifetime.rs:25:8 [INFO] [stdout] | [INFO] [stdout] 25 | fn longest_with_an_announcement<'a, T>( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> chapters/src/bin/chapter_15_box.rs:19:10 [INFO] [stdout] | [INFO] [stdout] 19 | Cons(i32, Box), [INFO] [stdout] | ---- ^^^ ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields 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 fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 19 | Cons((), ()), [INFO] [stdout] | ~~ ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a2` [INFO] [stdout] --> chapters/src/bin/chapter_4_borrowing.rs:34:9 [INFO] [stdout] | [INFO] [stdout] 34 | let a2 = get_ownership_2(a1); //a1 is not usable anymore [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_a2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b2` [INFO] [stdout] --> chapters/src/bin/chapter_4_borrowing.rs:47:9 [INFO] [stdout] | [INFO] [stdout] 47 | let b2 = work_with_value(&b1); //BORROWING - we borrow value for the function work [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_b2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> chapters/src/bin/chapter_4_borrowing.rs:88:9 [INFO] [stdout] | [INFO] [stdout] 88 | let s: &str = "Hello, world!"; //&str = slice for String - immutable reference [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `slice` [INFO] [stdout] --> chapters/src/bin/chapter_4_borrowing.rs:92:9 [INFO] [stdout] | [INFO] [stdout] 92 | let slice = &a[1..3]; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_slice` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [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 variable: `x` [INFO] [stdout] --> chapters/src/bin/chapter_3_basics.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | let x = 1_000_000; [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: `x` [INFO] [stdout] --> chapters/src/bin/chapter_3_basics.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | let x = 57u8; [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] --> chapters/src/bin/chapter_3_basics.rs:23:9 [INFO] [stdout] | [INFO] [stdout] 23 | let x = 59.123; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> chapters/src/bin/chapter_3_basics.rs:27:10 [INFO] [stdout] | [INFO] [stdout] 27 | let (a, b, c, d) = tup; [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] --> chapters/src/bin/chapter_3_basics.rs:27:13 [INFO] [stdout] | [INFO] [stdout] 27 | let (a, b, c, d) = tup; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> chapters/src/bin/chapter_3_basics.rs:27:16 [INFO] [stdout] | [INFO] [stdout] 27 | let (a, b, c, d) = tup; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `d` [INFO] [stdout] --> chapters/src/bin/chapter_3_basics.rs:27:19 [INFO] [stdout] | [INFO] [stdout] 27 | let (a, b, c, d) = tup; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_d` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> chapters/src/bin/chapter_3_basics.rs:37:9 [INFO] [stdout] | [INFO] [stdout] 37 | let x = [3; 5]; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `TWO_DAYS_SECOND` is never used [INFO] [stdout] --> chapters/src/bin/chapter_3_basics.rs:8:11 [INFO] [stdout] | [INFO] [stdout] 8 | const TWO_DAYS_SECOND: u32 = 2 * 24 * 60 * 60; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `run_draw` is never used [INFO] [stdout] --> chapters/src/bin/chapter_17_oop.rs:18:8 [INFO] [stdout] | [INFO] [stdout] 17 | impl Screen { [INFO] [stdout] | ----------- method in this implementation [INFO] [stdout] 18 | fn run_draw(&self) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `x` and `y` are never read [INFO] [stdout] --> chapters/src/bin/chapter_17_oop.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 25 | pub struct Point { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 26 | x: u32, [INFO] [stdout] | ^ [INFO] [stdout] 27 | y: u32, [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `place_holder` is never read [INFO] [stdout] --> chapters/src/bin/chapter_17_oop.rs:31:5 [INFO] [stdout] | [INFO] [stdout] 30 | pub struct Button { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] 31 | place_holder: String, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> chapters/src/bin/chapter_3_basics.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | let x = 1_000_000; [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: `s2` [INFO] [stdout] --> chapters/src/bin/chapter_4_borrowing.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | let s2 = s1; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s2` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a2` [INFO] [stdout] --> chapters/src/bin/chapter_4_borrowing.rs:34:9 [INFO] [stdout] | [INFO] [stdout] 34 | let a2 = get_ownership_2(a1); //a1 is not usable anymore [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_a2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b2` [INFO] [stdout] --> chapters/src/bin/chapter_4_borrowing.rs:47:9 [INFO] [stdout] | [INFO] [stdout] 47 | let b2 = work_with_value(&b1); //BORROWING - we borrow value for the function work [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_b2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> chapters/src/bin/chapter_4_borrowing.rs:88:9 [INFO] [stdout] | [INFO] [stdout] 88 | let s: &str = "Hello, world!"; //&str = slice for String - immutable reference [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `slice` [INFO] [stdout] --> chapters/src/bin/chapter_4_borrowing.rs:92:9 [INFO] [stdout] | [INFO] [stdout] 92 | let slice = &a[1..3]; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_slice` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> chapters/src/bin/chapter_3_basics.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | let x = 57u8; [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] --> chapters/src/bin/chapter_3_basics.rs:23:9 [INFO] [stdout] | [INFO] [stdout] 23 | let x = 59.123; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> chapters/src/bin/chapter_3_basics.rs:27:10 [INFO] [stdout] | [INFO] [stdout] 27 | let (a, b, c, d) = tup; [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] --> chapters/src/bin/chapter_3_basics.rs:27:13 [INFO] [stdout] | [INFO] [stdout] 27 | let (a, b, c, d) = tup; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> chapters/src/bin/chapter_3_basics.rs:27:16 [INFO] [stdout] | [INFO] [stdout] 27 | let (a, b, c, d) = tup; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `d` [INFO] [stdout] --> chapters/src/bin/chapter_3_basics.rs:27:19 [INFO] [stdout] | [INFO] [stdout] 27 | let (a, b, c, d) = tup; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_d` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> chapters/src/bin/chapter_3_basics.rs:37:9 [INFO] [stdout] | [INFO] [stdout] 37 | let x = [3; 5]; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `get_ownership` is never used [INFO] [stdout] --> chapters/src/bin/chapter_4_borrowing.rs:21:8 [INFO] [stdout] | [INFO] [stdout] 21 | fn get_ownership(x: String) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> chapters/src/bin/chapter_15_rc.rs:43:9 [INFO] [stdout] | [INFO] [stdout] 43 | let b = Cons(3, Rc::clone(&a)); //only increase reference counter, not a deep copy [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> chapters/src/bin/chapter_15_rc.rs:44:9 [INFO] [stdout] | [INFO] [stdout] 44 | 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] --> chapters/src/bin/chapter_15_rc.rs:17:10 [INFO] [stdout] | [INFO] [stdout] 17 | Cons(i32, Rc), [INFO] [stdout] | ---- ^^^ ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields 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 fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 17 | Cons((), ()), [INFO] [stdout] | ~~ ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `run_draw` is never used [INFO] [stdout] --> chapters/src/bin/chapter_17_oop.rs:18:8 [INFO] [stdout] | [INFO] [stdout] 17 | impl Screen { [INFO] [stdout] | ----------- method in this implementation [INFO] [stdout] 18 | fn run_draw(&self) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `x` and `y` are never read [INFO] [stdout] --> chapters/src/bin/chapter_17_oop.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 25 | pub struct Point { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 26 | x: u32, [INFO] [stdout] | ^ [INFO] [stdout] 27 | y: u32, [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `place_holder` is never read [INFO] [stdout] --> chapters/src/bin/chapter_17_oop.rs:31:5 [INFO] [stdout] | [INFO] [stdout] 30 | pub struct Button { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] 31 | place_holder: String, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b1` [INFO] [stdout] --> chapters/src/bin/chapter_8_collections.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | let b1 = b.get(2); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_b1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b2` [INFO] [stdout] --> chapters/src/bin/chapter_8_collections.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 11 | let b2 = b[2]; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_b2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> chapters/src/bin/chapter_18_matching.rs:8:20 [INFO] [stdout] | [INFO] [stdout] 8 | let Point { x: x, y: y } = p; //ex: 1 [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: `b1` [INFO] [stdout] --> chapters/src/bin/chapter_8_collections.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | let b1 = b.get(2); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_b1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> chapters/src/bin/chapter_18_matching.rs:8:26 [INFO] [stdout] | [INFO] [stdout] 8 | let Point { x: x, y: y } = p; //ex: 1 [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] --> chapters/src/bin/chapter_18_matching.rs:9:17 [INFO] [stdout] | [INFO] [stdout] 9 | let Point { x, y } = p; //ex: 2 [INFO] [stdout] | ^ help: try ignoring the field: `x: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> chapters/src/bin/chapter_18_matching.rs:9:20 [INFO] [stdout] | [INFO] [stdout] 9 | let Point { x, y } = p; //ex: 2 [INFO] [stdout] | ^ help: try ignoring the field: `y: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b2` [INFO] [stdout] --> chapters/src/bin/chapter_8_collections.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 11 | let b2 = b[2]; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_b2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Color` is never constructed [INFO] [stdout] --> chapters/src/bin/chapter_5_struct.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | struct Color(i32, i32, i32); //named tuple [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `NoField` is never constructed [INFO] [stdout] --> chapters/src/bin/chapter_5_struct.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | struct NoField; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `name` and `is_active` are never read [INFO] [stdout] --> chapters/src/bin/chapter_5_struct.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 8 | struct User { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 9 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 10 | age: u32, [INFO] [stdout] 11 | is_active: bool, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the `x:` in this pattern is redundant [INFO] [stdout] --> chapters/src/bin/chapter_18_matching.rs:8:17 [INFO] [stdout] | [INFO] [stdout] 8 | let Point { x: x, y: y } = p; //ex: 1 [INFO] [stdout] | ^^^^ help: use shorthand field pattern: `x` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_shorthand_field_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the `y:` in this pattern is redundant [INFO] [stdout] --> chapters/src/bin/chapter_18_matching.rs:8:23 [INFO] [stdout] | [INFO] [stdout] 8 | let Point { x: x, y: y } = p; //ex: 1 [INFO] [stdout] | ^^^^ help: use shorthand field pattern: `y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Color` is never constructed [INFO] [stdout] --> chapters/src/bin/chapter_5_struct.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | struct Color(i32, i32, i32); //named tuple [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `NoField` is never constructed [INFO] [stdout] --> chapters/src/bin/chapter_5_struct.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | struct NoField; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `name` and `is_active` are never read [INFO] [stdout] --> chapters/src/bin/chapter_5_struct.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 8 | struct User { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 9 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 10 | age: u32, [INFO] [stdout] 11 | is_active: bool, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `split_at_mut` is never used [INFO] [stdout] --> chapters/src/bin/chapter_19_super_features.rs:23:8 [INFO] [stdout] | [INFO] [stdout] 23 | fn split_at_mut(values: &mut [i32], mid: usize) -> (&mut [i32], &mut [i32]) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `item1` [INFO] [stdout] --> chapters/src/bin/chapter_10_generics.rs:22:18 [INFO] [stdout] | [INFO] [stdout] 22 | pub fn some_func(item1: &impl PartialOrd) {} [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_item1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> chapters/src/bin/chapter_10_generics.rs:30:24 [INFO] [stdout] | [INFO] [stdout] 30 | fn some_function(t: &T, u: &U) -> i32 [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `u` [INFO] [stdout] --> chapters/src/bin/chapter_10_generics.rs:30:31 [INFO] [stdout] | [INFO] [stdout] 30 | fn some_function(t: &T, u: &U) -> i32 [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_u` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `associated_types` is never used [INFO] [stdout] --> chapters/src/bin/chapter_19_super_features.rs:53:4 [INFO] [stdout] | [INFO] [stdout] 53 | fn associated_types() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `trait_ex` is never used [INFO] [stdout] --> chapters/src/bin/chapter_19_super_features.rs:66:4 [INFO] [stdout] | [INFO] [stdout] 66 | fn trait_ex() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `some_function` is never used [INFO] [stdout] --> chapters/src/bin/chapter_10_generics.rs:30:4 [INFO] [stdout] | [INFO] [stdout] 30 | fn some_function(t: &T, u: &U) -> i32 [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::rc::Rc` [INFO] [stdout] --> chapters/src/bin/chapter_15_box.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::rc::Rc; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `split_at_mut` is never used [INFO] [stdout] --> chapters/src/bin/chapter_19_super_features.rs:23:8 [INFO] [stdout] | [INFO] [stdout] 23 | fn split_at_mut(values: &mut [i32], mid: usize) -> (&mut [i32], &mut [i32]) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `associated_types` is never used [INFO] [stdout] --> chapters/src/bin/chapter_19_super_features.rs:53:4 [INFO] [stdout] | [INFO] [stdout] 53 | fn associated_types() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `trait_ex` is never used [INFO] [stdout] --> chapters/src/bin/chapter_19_super_features.rs:66:4 [INFO] [stdout] | [INFO] [stdout] 66 | fn trait_ex() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> chapters/src/bin/chapter_15_rc.rs:43:9 [INFO] [stdout] | [INFO] [stdout] 43 | let b = Cons(3, Rc::clone(&a)); //only increase reference counter, not a deep copy [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> chapters/src/bin/chapter_15_rc.rs:44:9 [INFO] [stdout] | [INFO] [stdout] 44 | 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: unused import: `std::fs` [INFO] [stdout] --> chapters/src/bin/chapter_9_error.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::fs; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> chapters/src/bin/chapter_15_rc.rs:17:10 [INFO] [stdout] | [INFO] [stdout] 17 | Cons(i32, Rc), [INFO] [stdout] | ---- ^^^ ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields 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 fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 17 | Cons((), ()), [INFO] [stdout] | ~~ ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> chapters/src/bin/chapter_15_box.rs:19:10 [INFO] [stdout] | [INFO] [stdout] 19 | Cons(i32, Box), [INFO] [stdout] | ---- ^^^ ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields 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 fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 19 | Cons((), ()), [INFO] [stdout] | ~~ ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `file` [INFO] [stdout] --> chapters/src/bin/chapter_9_error.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let file = File::open("text.txt").unwrap_or_else(|error| { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_file` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `read_username_from_file` is never used [INFO] [stdout] --> chapters/src/bin/chapter_9_error.rs:24:8 [INFO] [stdout] | [INFO] [stdout] 24 | fn read_username_from_file() -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> chapters/src/bin/chapter_10_1_lifetime.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | let s: &'static str = "I have a static lifetime."; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [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] [stderr] Compiling futures-macro v0.3.30 [INFO] [stderr] Checking futures-util v0.3.30 [INFO] [stderr] Checking futures-executor v0.3.30 [INFO] [stderr] Checking futures v0.3.30 [INFO] [stderr] Checking server v0.1.0 (/opt/rustwide/workdir/server) [INFO] [stdout] warning: field `id` is never read [INFO] [stdout] --> server/src/lib.rs:50:5 [INFO] [stdout] | [INFO] [stdout] 49 | pub struct Worker { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] 50 | id: usize, [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> server/src/lib.rs:17:38 [INFO] [stdout] | [INFO] [stdout] 16 | let job = Box::new(f); [INFO] [stdout] | --- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 17 | self.sender.as_ref().map(|s| s.send(job).unwrap()); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> server/src/lib.rs:34:21 [INFO] [stdout] | [INFO] [stdout] 23 | let mut vec: Vec = Vec::with_capacity(size); [INFO] [stdout] | --- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 24 | let (tx, rc): (Sender, Receiver) = mpsc::channel(); [INFO] [stdout] | -- -- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 25 | let receiver: Arc>> = Arc::new(Mutex::new(rc)); [INFO] [stdout] | -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 34 | sender: Some(tx), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> server/src/lib.rs:44:39 [INFO] [stdout] | [INFO] [stdout] 44 | worker.thr.take().map(|s| s.join().unwrap()); [INFO] [stdout] | - ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> server/src/lib.rs:58:18 [INFO] [stdout] | [INFO] [stdout] 55 | pub fn new(id: usize, rc: Arc>>) -> Worker { [INFO] [stdout] | ----------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 58 | thr: Some(thread::spawn(move || loop { [INFO] [stdout] | __________________^ [INFO] [stdout] 59 | | let message = rc.lock().unwrap().recv(); [INFO] [stdout] 60 | | match message { [INFO] [stdout] 61 | | Ok(job) => { [INFO] [stdout] ... | [INFO] [stdout] 69 | | } [INFO] [stdout] 70 | | })), [INFO] [stdout] | |_______________^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 4 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `id` is never read [INFO] [stdout] --> server/src/lib.rs:50:5 [INFO] [stdout] | [INFO] [stdout] 49 | pub struct Worker { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] 50 | id: usize, [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> server/src/lib.rs:17:38 [INFO] [stdout] | [INFO] [stdout] 16 | let job = Box::new(f); [INFO] [stdout] | --- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 17 | self.sender.as_ref().map(|s| s.send(job).unwrap()); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> server/src/lib.rs:34:21 [INFO] [stdout] | [INFO] [stdout] 23 | let mut vec: Vec = Vec::with_capacity(size); [INFO] [stdout] | --- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 24 | let (tx, rc): (Sender, Receiver) = mpsc::channel(); [INFO] [stdout] | -- -- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 25 | let receiver: Arc>> = Arc::new(Mutex::new(rc)); [INFO] [stdout] | -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 34 | sender: Some(tx), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> server/src/lib.rs:44:39 [INFO] [stdout] | [INFO] [stdout] 44 | worker.thr.take().map(|s| s.join().unwrap()); [INFO] [stdout] | - ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> server/src/lib.rs:58:18 [INFO] [stdout] | [INFO] [stdout] 55 | pub fn new(id: usize, rc: Arc>>) -> Worker { [INFO] [stdout] | ----------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 58 | thr: Some(thread::spawn(move || loop { [INFO] [stdout] | __________________^ [INFO] [stdout] 59 | | let message = rc.lock().unwrap().recv(); [INFO] [stdout] 60 | | match message { [INFO] [stdout] 61 | | Ok(job) => { [INFO] [stdout] ... | [INFO] [stdout] 69 | | } [INFO] [stdout] 70 | | })), [INFO] [stdout] | |_______________^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 4 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `server` (lib) due to 5 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `server` (lib test) due to 5 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "b0c46a408b833dd13be6de5e45fcc9b45453cec170779afad478d924f0365963", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b0c46a408b833dd13be6de5e45fcc9b45453cec170779afad478d924f0365963", kill_on_drop: false }` [INFO] [stdout] b0c46a408b833dd13be6de5e45fcc9b45453cec170779afad478d924f0365963