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"/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] aa734bb7ee9a2b6cd5c0b2ed8c4bd30d654cf4e94554b916a21641ed326edfe0 [INFO] running `Command { std: "docker" "start" "-a" 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"RUSTFLAGS=--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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2a900896563b9c5f4ccae5362c141a82f143592bd75edd55698ef12b5ae2411d [INFO] running `Command { std: "docker" "start" "-a" "2a900896563b9c5f4ccae5362c141a82f143592bd75edd55698ef12b5ae2411d", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.65 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling libc v0.2.91 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking exercise-structs v0.1.0 (/opt/rustwide/workdir/03-structs-lifetimes/exercise) [INFO] [stderr] Checking demo-structs v0.1.0 (/opt/rustwide/workdir/03-structs-lifetimes/demo) [INFO] [stderr] Checking exercise-generics v0.1.0 (/opt/rustwide/workdir/04-generics-traits/exercise) [INFO] [stderr] Checking solution2 v0.1.0 (/opt/rustwide/workdir/02-basics/solution) [INFO] [stderr] Checking demo-generics v0.1.0 (/opt/rustwide/workdir/04-generics-traits/demo) [INFO] [stderr] Checking exercise-hello v0.1.0 (/opt/rustwide/workdir/01-hello/exercise) [INFO] [stderr] Checking demo-stuff v0.1.0 (/opt/rustwide/workdir/01-hello/demo) [INFO] [stderr] Checking demo v0.1.0 (/opt/rustwide/workdir/02-basics/demo) [INFO] [stderr] Checking solution v0.1.0 (/opt/rustwide/workdir/01-hello/solution) [INFO] [stderr] Checking exercise-match v0.1.0 (/opt/rustwide/workdir/05-match-result/exercise) [INFO] [stderr] Checking demo-strings v0.1.0 (/opt/rustwide/workdir/06-strings/demo) [INFO] [stderr] Checking solution-match v0.1.0 (/opt/rustwide/workdir/05-match-result/solution) [INFO] [stderr] Checking demo-match v0.1.0 (/opt/rustwide/workdir/05-match-result/demo) [INFO] [stderr] Checking exercise-libraries v0.1.0 (/opt/rustwide/workdir/07-external-libraries/exercise) [INFO] [stderr] Checking solution-structs v0.1.0 (/opt/rustwide/workdir/03-structs-lifetimes/solution) [INFO] [stderr] Checking structs-exercise v0.1.0 (/opt/rustwide/workdir/02-basics/exercise) [INFO] [stdout] error: expected identifier, found `?` [INFO] [stdout] --> 04-generics-traits/exercise/src/main.rs:24:37 [INFO] [stdout] | [INFO] [stdout] 24 | let mut map: HashMap<&str, ???> = HashMap::new(); [INFO] [stdout] | -------- ^ expected identifier [INFO] [stdout] | | | [INFO] [stdout] | | help: use `=` if you meant to assign [INFO] [stdout] | while parsing the type for `mut map` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: expected one of `!`, `.`, `::`, `;`, `?`, `{`, or an operator, found `,` [INFO] [stdout] --> 04-generics-traits/exercise/src/main.rs:24:34 [INFO] [stdout] | [INFO] [stdout] 24 | let mut map: HashMap<&str, ???> = HashMap::new(); [INFO] [stdout] | ^ expected one of 7 possible tokens [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking solution-generics v0.1.0 (/opt/rustwide/workdir/04-generics-traits/solution) [INFO] [stdout] warning: unused import: `std::collections::HashMap` [INFO] [stdout] --> 04-generics-traits/exercise/src/main.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 4 | use std::collections::HashMap; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> 04-generics-traits/exercise/src/main.rs:21:10 [INFO] [stdout] | [INFO] [stdout] 21 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> 04-generics-traits/exercise/src/main.rs:39:10 [INFO] [stdout] | [INFO] [stdout] 39 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: expected identifier, found `?` [INFO] [stdout] --> 04-generics-traits/exercise/src/main.rs:24:37 [INFO] [stdout] | [INFO] [stdout] 24 | let mut map: HashMap<&str, ???> = HashMap::new(); [INFO] [stdout] | -------- ^ expected identifier [INFO] [stdout] | | | [INFO] [stdout] | | help: use `=` if you meant to assign [INFO] [stdout] | while parsing the type for `mut map` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: expected one of `!`, `.`, `::`, `;`, `?`, `{`, or an operator, found `,` [INFO] [stdout] --> 04-generics-traits/exercise/src/main.rs:24:34 [INFO] [stdout] | [INFO] [stdout] 24 | let mut map: HashMap<&str, ???> = HashMap::new(); [INFO] [stdout] | ^ expected one of 7 possible tokens [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::HashMap` [INFO] [stdout] --> 04-generics-traits/exercise/src/main.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 4 | use std::collections::HashMap; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `exercise-generics` due to 3 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error[E0046]: not all trait items implemented, missing: `get_weight` [INFO] [stdout] --> 04-generics-traits/exercise/src/main.rs:52:9 [INFO] [stdout] | [INFO] [stdout] 38 | fn get_weight(&self) -> i32; [INFO] [stdout] | ---------------------------- `get_weight` from trait [INFO] [stdout] ... [INFO] [stdout] 52 | impl HasWeight for Cow {} [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ missing `get_weight` in implementation [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0046]: not all trait items implemented, missing: `get_weight` [INFO] [stdout] --> 04-generics-traits/exercise/src/main.rs:54:9 [INFO] [stdout] | [INFO] [stdout] 38 | fn get_weight(&self) -> i32; [INFO] [stdout] | ---------------------------- `get_weight` from trait [INFO] [stdout] ... [INFO] [stdout] 54 | impl HasWeight for Cat {} [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ missing `get_weight` in implementation [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0061]: this function takes 0 arguments but 1 argument was supplied [INFO] [stdout] --> 04-generics-traits/exercise/src/main.rs:60:13 [INFO] [stdout] | [INFO] [stdout] 60 | get_weight(Cow { [INFO] [stdout] | _____________^^^^^^^^^^_- [INFO] [stdout] | | | [INFO] [stdout] | | expected 0 arguments [INFO] [stdout] 61 | | meat_weight: 1, [INFO] [stdout] 62 | | milk_weight: 5 [INFO] [stdout] 63 | | }), [INFO] [stdout] | |_____________- supplied 1 argument [INFO] [stdout] | [INFO] [stdout] note: function defined here [INFO] [stdout] --> 04-generics-traits/exercise/src/main.rs:57:12 [INFO] [stdout] | [INFO] [stdout] 57 | fn get_weight() -> i32 {} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0061]: this function takes 0 arguments but 1 argument was supplied [INFO] [stdout] --> 04-generics-traits/exercise/src/main.rs:66:20 [INFO] [stdout] | [INFO] [stdout] 66 | assert_eq!(get_weight(Cat { furballs: 3 }), 3); [INFO] [stdout] | ^^^^^^^^^^ ------------------- supplied 1 argument [INFO] [stdout] | | [INFO] [stdout] | expected 0 arguments [INFO] [stdout] | [INFO] [stdout] note: function defined here [INFO] [stdout] --> 04-generics-traits/exercise/src/main.rs:57:12 [INFO] [stdout] | [INFO] [stdout] 57 | fn get_weight() -> i32 {} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> 05-match-result/exercise/src/main.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> 04-generics-traits/exercise/src/main.rs:57:28 [INFO] [stdout] | [INFO] [stdout] 57 | fn get_weight() -> i32 {} [INFO] [stdout] | ---------- ^^^ expected `i32`, found `()` [INFO] [stdout] | | [INFO] [stdout] | implicitly returns `()` as its body has no tail or `return` expression [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 7 previous errors; 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0046, E0061, E0308. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0046`. [INFO] [stdout] [INFO] [stdout] warning: unused variable: `input` [INFO] [stdout] --> 05-match-result/exercise/src/main.rs:11:16 [INFO] [stdout] | [INFO] [stdout] 11 | fn parse_value(input: &str) -> Sculpture { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_input` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Bunny` [INFO] [stdout] --> 05-match-result/exercise/src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | Bunny, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Teapot` [INFO] [stdout] --> 05-match-result/exercise/src/main.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | Teapot, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `parse_value` [INFO] [stdout] --> 05-match-result/exercise/src/main.rs:11:4 [INFO] [stdout] | [INFO] [stdout] 11 | fn parse_value(input: &str) -> Sculpture { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> 02-basics/exercise/src/main.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | let x: u8 = 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: `xs` [INFO] [stdout] --> 02-basics/exercise/src/main.rs:28:9 [INFO] [stdout] | [INFO] [stdout] 28 | let xs = [1, 2, 3, 4, 5]; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_xs` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s2` [INFO] [stdout] --> 06-strings/demo/src/main.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | let s2: String = String::from_str(s).unwrap(); // s could be invalid bytes for a String [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: `s2` [INFO] [stdout] --> 06-strings/demo/src/main.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let s2: String = s.to_owned(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s3` [INFO] [stdout] --> 06-strings/demo/src/main.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | let s3: &str = s2.as_str(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s3` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0560]: struct `rectangle::Rectangle` has no field named `height` [INFO] [stdout] --> 03-structs-lifetimes/exercise/src/main.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | height: 3.0f64, [INFO] [stdout] | ^^^^^^ `rectangle::Rectangle` does not have this field [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> 03-structs-lifetimes/demo/src/main.rs:18:8 [INFO] [stdout] | [INFO] [stdout] 18 | fn new(width: u32, height: u32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `double_area_rect_reference` [INFO] [stdout] --> 03-structs-lifetimes/demo/src/main.rs:73:4 [INFO] [stdout] | [INFO] [stdout] 73 | fn double_area_rect_reference(rect: &Rectangle) -> u32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0624]: associated function `area` is private [INFO] [stdout] --> 03-structs-lifetimes/exercise/src/main.rs:10:56 [INFO] [stdout] | [INFO] [stdout] 10 | println!("Area of a 2 x 3 rectangle is {:?}", rect.area()); [INFO] [stdout] | ^^^^ private associated function [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0560]: struct `circle::Circle` has no field named `radius` [INFO] [stdout] --> 03-structs-lifetimes/exercise/src/main.rs:12:25 [INFO] [stdout] | [INFO] [stdout] 12 | let circ = Circle { radius: 1.0f64 }; [INFO] [stdout] | ^^^^^^ `circle::Circle` does not have this field [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0599]: no method named `area` found for struct `circle::Circle` in the current scope [INFO] [stdout] --> 03-structs-lifetimes/exercise/src/main.rs:13:52 [INFO] [stdout] | [INFO] [stdout] 13 | println!("Area of a unit circle is {:?}", circ.area()); [INFO] [stdout] | ^^^^ method not found in `circle::Circle` [INFO] [stdout] | [INFO] [stdout] ::: 03-structs-lifetimes/exercise/src/shapes/circle.rs:5:1 [INFO] [stdout] | [INFO] [stdout] 5 | pub struct Circle {} [INFO] [stdout] | ----------------- method `area` not found for this [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0560]: struct `circle::Circle` has no field named `radius` [INFO] [stdout] --> 03-structs-lifetimes/exercise/src/main.rs:26:39 [INFO] [stdout] | [INFO] [stdout] 26 | let mutable_circle = Circle { radius: 1.0 }; [INFO] [stdout] | ^^^^^^ `circle::Circle` does not have this field [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> 03-structs-lifetimes/exercise/src/main.rs:27:37 [INFO] [stdout] | [INFO] [stdout] 27 | mutate_circle_double_radius(mutable_circle); [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | expected `&mut circle::Circle`, found struct `circle::Circle` [INFO] [stdout] | help: consider mutably borrowing here: `&mut mutable_circle` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0599]: no method named `area` found for struct `circle::Circle` in the current scope [INFO] [stdout] --> 03-structs-lifetimes/exercise/src/main.rs:28:39 [INFO] [stdout] | [INFO] [stdout] 28 | println!("{}", mutable_circle.area()); [INFO] [stdout] | ^^^^ method not found in `circle::Circle` [INFO] [stdout] | [INFO] [stdout] ::: 03-structs-lifetimes/exercise/src/shapes/circle.rs:5:1 [INFO] [stdout] | [INFO] [stdout] 5 | pub struct Circle {} [INFO] [stdout] | ----------------- method `area` not found for this [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0599]: no method named `area` found for struct `circle::Circle` in the current scope [INFO] [stdout] --> 03-structs-lifetimes/exercise/src/main.rs:32:35 [INFO] [stdout] | [INFO] [stdout] 32 | assert_eq!(mutable_circle.area(), Circle { radius: 2.0 }.area()); [INFO] [stdout] | ^^^^ method not found in `circle::Circle` [INFO] [stdout] | [INFO] [stdout] ::: 03-structs-lifetimes/exercise/src/shapes/circle.rs:5:1 [INFO] [stdout] | [INFO] [stdout] 5 | pub struct Circle {} [INFO] [stdout] | ----------------- method `area` not found for this [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0560]: struct `circle::Circle` has no field named `radius` [INFO] [stdout] --> 03-structs-lifetimes/exercise/src/main.rs:32:52 [INFO] [stdout] | [INFO] [stdout] 32 | assert_eq!(mutable_circle.area(), Circle { radius: 2.0 }.area()); [INFO] [stdout] | ^^^^^^ `circle::Circle` does not have this field [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0599]: no method named `area` found for struct `circle::Circle` in the current scope [INFO] [stdout] --> 03-structs-lifetimes/exercise/src/main.rs:32:66 [INFO] [stdout] | [INFO] [stdout] 32 | assert_eq!(mutable_circle.area(), Circle { radius: 2.0 }.area()); [INFO] [stdout] | ^^^^ method not found in `circle::Circle` [INFO] [stdout] | [INFO] [stdout] ::: 03-structs-lifetimes/exercise/src/shapes/circle.rs:5:1 [INFO] [stdout] | [INFO] [stdout] 5 | pub struct Circle {} [INFO] [stdout] | ----------------- method `area` not found for this [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0609]: no field `radius` on type `&mut circle::Circle` [INFO] [stdout] --> 03-structs-lifetimes/exercise/src/main.rs:22:20 [INFO] [stdout] | [INFO] [stdout] 22 | circle.radius = circle.radius * 2.0; [INFO] [stdout] | ^^^^^^ unknown field [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0609]: no field `radius` on type `&mut circle::Circle` [INFO] [stdout] --> 03-structs-lifetimes/exercise/src/main.rs:22:36 [INFO] [stdout] | [INFO] [stdout] 22 | circle.radius = circle.radius * 2.0; [INFO] [stdout] | ^^^^^^ unknown field [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: expected one of `!` or `::`, found `:` [INFO] [stdout] --> 07-external-libraries/exercise/src/main.rs:21:6 [INFO] [stdout] | [INFO] [stdout] 21 | https://docs.serde.rs/serde_json/#parsing-json-as-strongly-typed-data-structures [INFO] [stdout] | ^ expected one of `!` or `::` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s2` [INFO] [stdout] --> 06-strings/demo/src/main.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | let s2: String = String::from_str(s).unwrap(); // s could be invalid bytes for a String [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: `s2` [INFO] [stdout] --> 06-strings/demo/src/main.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let s2: String = s.to_owned(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s3` [INFO] [stdout] --> 06-strings/demo/src/main.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | let s3: &str = s2.as_str(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s3` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `x` is never read [INFO] [stdout] --> 02-basics/solution/src/main.rs:4:13 [INFO] [stdout] | [INFO] [stdout] 4 | let mut x = 1; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `mutability` [INFO] [stdout] --> 02-basics/solution/src/main.rs:3:4 [INFO] [stdout] | [INFO] [stdout] 3 | fn mutability() -> u8 { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `casting` [INFO] [stdout] --> 02-basics/solution/src/main.rs:14:4 [INFO] [stdout] | [INFO] [stdout] 14 | fn casting() -> f64 { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `collections` [INFO] [stdout] --> 02-basics/solution/src/main.rs:24:4 [INFO] [stdout] | [INFO] [stdout] 24 | fn collections() -> u8 { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> 05-match-result/solution/src/main.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::process` [INFO] [stdout] --> 05-match-result/demo/src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::process; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> 05-match-result/demo/src/main.rs:7:6 [INFO] [stdout] | [INFO] [stdout] 7 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::process` [INFO] [stdout] --> 05-match-result/demo/src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::process; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> 05-match-result/demo/src/main.rs:7:6 [INFO] [stdout] | [INFO] [stdout] 7 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0560]: struct `circle::Circle` has no field named `radius` [INFO] [stdout] --> 03-structs-lifetimes/exercise/src/shapes/circle.rs:12:31 [INFO] [stdout] | [INFO] [stdout] 12 | let circle = Circle { radius: 1.0f64 }; [INFO] [stdout] | ^^^^^^ `circle::Circle` does not have this field [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0599]: no method named `area` found for struct `circle::Circle` in the current scope [INFO] [stdout] --> 03-structs-lifetimes/exercise/src/shapes/circle.rs:13:29 [INFO] [stdout] | [INFO] [stdout] 5 | pub struct Circle {} [INFO] [stdout] | ----------------- method `area` not found for this [INFO] [stdout] ... [INFO] [stdout] 13 | let actual = circle.area(); [INFO] [stdout] | ^^^^ method not found in `circle::Circle` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0609]: no field `height` on type `&rectangle::Rectangle` [INFO] [stdout] --> 03-structs-lifetimes/exercise/src/shapes/rectangle.rs:7:27 [INFO] [stdout] | [INFO] [stdout] 7 | self.width * self.height [INFO] [stdout] | ^^^^^^ unknown field [INFO] [stdout] | [INFO] [stdout] = note: available fields are: `width` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0560]: struct `rectangle::Rectangle` has no field named `height` [INFO] [stdout] --> 03-structs-lifetimes/exercise/src/shapes/rectangle.rs:18:13 [INFO] [stdout] | [INFO] [stdout] 18 | height: 3.0f64, [INFO] [stdout] | ^^^^^^ `rectangle::Rectangle` does not have this field [INFO] [stdout] | [INFO] [stdout] = note: available fields are: `width` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 16 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0308, E0560, E0599, E0609, E0624. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0308`. [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Bunny` [INFO] [stdout] --> 05-match-result/solution/src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | Bunny, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Teapot` [INFO] [stdout] --> 05-match-result/solution/src/main.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | Teapot, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `parse_value` [INFO] [stdout] --> 05-match-result/solution/src/main.rs:11:4 [INFO] [stdout] | [INFO] [stdout] 11 | fn parse_value(input: &str) -> Option { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> 02-basics/exercise/src/main.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | let x: u8 = 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: `xs` [INFO] [stdout] --> 02-basics/exercise/src/main.rs:28:9 [INFO] [stdout] | [INFO] [stdout] 28 | let xs = [1, 2, 3, 4, 5]; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_xs` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `mutability` [INFO] [stdout] --> 02-basics/exercise/src/main.rs:3:4 [INFO] [stdout] | [INFO] [stdout] 3 | fn mutability() -> u8 { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `casting` [INFO] [stdout] --> 02-basics/exercise/src/main.rs:15:4 [INFO] [stdout] | [INFO] [stdout] 15 | fn casting() -> f64 { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `collections` [INFO] [stdout] --> 02-basics/exercise/src/main.rs:27:4 [INFO] [stdout] | [INFO] [stdout] 27 | fn collections() -> u8 { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: irrefutable `if let` pattern [INFO] [stdout] --> 05-match-result/demo/src/main.rs:104:5 [INFO] [stdout] | [INFO] [stdout] 104 | / if let x = Some(wrapper) { [INFO] [stdout] 105 | | dbg!(x); [INFO] [stdout] 106 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(irrefutable_let_patterns)]` on by default [INFO] [stdout] = note: this pattern will always match, so the `if let` is useless [INFO] [stdout] = help: consider replacing the `if let` with a `let` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: irrefutable `if let` pattern [INFO] [stdout] --> 05-match-result/demo/src/main.rs:104:5 [INFO] [stdout] | [INFO] [stdout] 104 | / if let x = Some(wrapper) { [INFO] [stdout] 105 | | dbg!(x); [INFO] [stdout] 106 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(irrefutable_let_patterns)]` on by default [INFO] [stdout] = note: this pattern will always match, so the `if let` is useless [INFO] [stdout] = help: consider replacing the `if let` with a `let` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> 03-structs-lifetimes/exercise/src/shapes/circle.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> 03-structs-lifetimes/exercise/src/shapes/rectangle.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 12 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> 03-structs-lifetimes/exercise/src/main.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0560]: struct `Rectangle` has no field named `height` [INFO] [stdout] --> 03-structs-lifetimes/exercise/src/main.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | height: 3.0f64, [INFO] [stdout] | ^^^^^^ `Rectangle` does not have this field [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> 03-structs-lifetimes/demo/src/main.rs:18:8 [INFO] [stdout] | [INFO] [stdout] 18 | fn new(width: u32, height: u32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `double_area_rect_reference` [INFO] [stdout] --> 03-structs-lifetimes/demo/src/main.rs:73:4 [INFO] [stdout] | [INFO] [stdout] 73 | fn double_area_rect_reference(rect: &Rectangle) -> u32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `x` [INFO] [stdout] --> 05-match-result/demo/src/main.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | x: f64, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `y` [INFO] [stdout] --> 05-match-result/demo/src/main.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | y: f64, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `LineTo` [INFO] [stdout] --> 05-match-result/demo/src/main.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | LineTo { x: f64, y: f64 }, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `LineBetween` [INFO] [stdout] --> 05-match-result/demo/src/main.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | LineBetween((Point, Point)), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Clear` [INFO] [stdout] --> 05-match-result/demo/src/main.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | Clear, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `x` is never read [INFO] [stdout] --> 02-basics/solution/src/main.rs:4:13 [INFO] [stdout] | [INFO] [stdout] 4 | let mut x = 1; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0624]: associated function `area` is private [INFO] [stdout] --> 03-structs-lifetimes/exercise/src/main.rs:10:56 [INFO] [stdout] | [INFO] [stdout] 10 | println!("Area of a 2 x 3 rectangle is {:?}", rect.area()); [INFO] [stdout] | ^^^^ private associated function [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0560]: struct `Circle` has no field named `radius` [INFO] [stdout] --> 03-structs-lifetimes/exercise/src/main.rs:12:25 [INFO] [stdout] | [INFO] [stdout] 12 | let circ = Circle { radius: 1.0f64 }; [INFO] [stdout] | ^^^^^^ `Circle` does not have this field [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0599]: no method named `area` found for struct `Circle` in the current scope [INFO] [stdout] --> 03-structs-lifetimes/exercise/src/main.rs:13:52 [INFO] [stdout] | [INFO] [stdout] 13 | println!("Area of a unit circle is {:?}", circ.area()); [INFO] [stdout] | ^^^^ method not found in `Circle` [INFO] [stdout] | [INFO] [stdout] ::: 03-structs-lifetimes/exercise/src/shapes/circle.rs:5:1 [INFO] [stdout] | [INFO] [stdout] 5 | pub struct Circle {} [INFO] [stdout] | ----------------- method `area` not found for this [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0609]: no field `height` on type `&Rectangle` [INFO] [stdout] --> 03-structs-lifetimes/exercise/src/shapes/rectangle.rs:7:27 [INFO] [stdout] | [INFO] [stdout] 7 | self.width * self.height [INFO] [stdout] | ^^^^^^ unknown field [INFO] [stdout] | [INFO] [stdout] = note: available fields are: `width` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 5 previous errors; 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0560, E0599, E0609, E0624. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0560`. [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> 04-generics-traits/solution/src/main.rs:21:10 [INFO] [stdout] | [INFO] [stdout] 21 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> 04-generics-traits/solution/src/main.rs:39:10 [INFO] [stdout] | [INFO] [stdout] 39 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> 05-match-result/exercise/src/main.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | assert_eq!(parse_value("bunny"), Some(Sculpture::Bunny)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected enum `Sculpture`, found enum `Option` [INFO] [stdout] | [INFO] [stdout] = note: expected enum `Sculpture` [INFO] [stdout] found enum `Option` [INFO] [stdout] = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> 05-match-result/exercise/src/main.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | assert_eq!(parse_value("teapot"), Some(Sculpture::Teapot)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected enum `Sculpture`, found enum `Option` [INFO] [stdout] | [INFO] [stdout] = note: expected enum `Sculpture` [INFO] [stdout] found enum `Option` [INFO] [stdout] = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> 05-match-result/exercise/src/main.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | assert_eq!(parse_value("taco"), None); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected enum `Sculpture`, found enum `Option` [INFO] [stdout] | [INFO] [stdout] = note: expected enum `Sculpture` [INFO] [stdout] found enum `Option<_>` [INFO] [stdout] = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> 05-match-result/exercise/src/main.rs:29:9 [INFO] [stdout] | [INFO] [stdout] 29 | assert_eq!(value, "value"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected enum `Option`, found `&str` [INFO] [stdout] | [INFO] [stdout] = note: expected enum `Option<&str>` [INFO] [stdout] found reference `&str` [INFO] [stdout] = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 4 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0308`. [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "2a900896563b9c5f4ccae5362c141a82f143592bd75edd55698ef12b5ae2411d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2a900896563b9c5f4ccae5362c141a82f143592bd75edd55698ef12b5ae2411d", kill_on_drop: false }` [INFO] [stdout] 2a900896563b9c5f4ccae5362c141a82f143592bd75edd55698ef12b5ae2411d