[INFO] cloning repository https://github.com/khoinguyen19k8/the-rust-programming-lang [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/khoinguyen19k8/the-rust-programming-lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkhoinguyen19k8%2Fthe-rust-programming-lang", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkhoinguyen19k8%2Fthe-rust-programming-lang'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a46deb39acf35f47628c48eb5fa9ca603cbef539 [INFO] checking khoinguyen19k8/the-rust-programming-lang against try#e90f1ff63e694965281f833819a486da29772bdf for pr-146167 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkhoinguyen19k8%2Fthe-rust-programming-lang" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/khoinguyen19k8/the-rust-programming-lang [INFO] finished tweaking git repo https://github.com/khoinguyen19k8/the-rust-programming-lang [INFO] tweaked toml for git repo https://github.com/khoinguyen19k8/the-rust-programming-lang written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/khoinguyen19k8/the-rust-programming-lang on toolchain e90f1ff63e694965281f833819a486da29772bdf [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e90f1ff63e694965281f833819a486da29772bdf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/khoinguyen19k8/the-rust-programming-lang 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" "+e90f1ff63e694965281f833819a486da29772bdf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: /workspace/builds/worker-4-tc2/source/Cargo.toml: unused manifest key: cargo-new [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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+e90f1ff63e694965281f833819a486da29772bdf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 97dffc88780c3fe7339b5898140f05f3e5c8da1fb40493068ba43eec8eea8dbf [INFO] running `Command { std: "docker" "start" "-a" "97dffc88780c3fe7339b5898140f05f3e5c8da1fb40493068ba43eec8eea8dbf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "97dffc88780c3fe7339b5898140f05f3e5c8da1fb40493068ba43eec8eea8dbf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "97dffc88780c3fe7339b5898140f05f3e5c8da1fb40493068ba43eec8eea8dbf", kill_on_drop: false }` [INFO] [stdout] 97dffc88780c3fe7339b5898140f05f3e5c8da1fb40493068ba43eec8eea8dbf [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+e90f1ff63e694965281f833819a486da29772bdf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c4e4e2f0c406453fba5fa47c4ced69d03632b5a35efd7827c5d7702be1f70cd9 [INFO] running `Command { std: "docker" "start" "-a" "c4e4e2f0c406453fba5fa47c4ced69d03632b5a35efd7827c5d7702be1f70cd9", kill_on_drop: false }` [INFO] [stderr] warning: /opt/rustwide/workdir/Cargo.toml: unused manifest key: cargo-new [INFO] [stderr] Compiling libc v0.2.154 [INFO] [stderr] Checking minigrep v0.1.0 (/opt/rustwide/workdir/minigrep) [INFO] [stderr] Checking enums_pattern_matching v0.1.0 (/opt/rustwide/workdir/enums_pattern_matching) [INFO] [stderr] Checking error_handling v0.1.0 (/opt/rustwide/workdir/error_handling) [INFO] [stderr] Checking my-project-package v0.1.0 (/opt/rustwide/workdir/my-project-package) [INFO] [stderr] Checking using_structs v0.1.0 (/opt/rustwide/workdir/using_structs) [INFO] [stderr] Checking variables v0.1.0 (/opt/rustwide/workdir/variables) [INFO] [stderr] Checking the-rust-programming-lang v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking ownership v0.1.0 (/opt/rustwide/workdir/ownership) [INFO] [stderr] Checking collections v0.1.0 (/opt/rustwide/workdir/collections) [INFO] [stdout] warning: unused variable: `word` [INFO] [stdout] --> ownership/src/main.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | let word = first_word(&my_string[0..6]); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_word` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `word` [INFO] [stdout] --> ownership/src/main.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | let word = first_word(&my_string[..]); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_word` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `word` [INFO] [stdout] --> ownership/src/main.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | let word = first_word(&my_string); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_word` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `word` [INFO] [stdout] --> ownership/src/main.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | let word = first_word(&my_string_literal[0..6]); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_word` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `word` [INFO] [stdout] --> ownership/src/main.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | let word = first_word(&my_string_literal[..]); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_word` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `word` [INFO] [stdout] --> ownership/src/main.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | let word = first_word(my_string_literal); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_word` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `user2` [INFO] [stdout] --> using_structs/src/main.rs:49:9 [INFO] [stdout] | [INFO] [stdout] 49 | let user2 = User { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_user2` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `user2` [INFO] [stdout] --> using_structs/src/main.rs:49:9 [INFO] [stdout] | [INFO] [stdout] 49 | let user2 = User { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_user2` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `active`, `username`, and `sign_in_count` are never read [INFO] [stdout] --> using_structs/src/main.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 1 | struct User { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 2 | active: bool, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 3 | username: String, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 4 | email: String, [INFO] [stdout] 5 | sign_in_count: u64, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `can_hold` is never used [INFO] [stdout] --> using_structs/src/main.rs:20:8 [INFO] [stdout] | [INFO] [stdout] 13 | impl Rectangle { [INFO] [stdout] | -------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 20 | fn can_hold(&self, other: &Rectangle) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `build_user` is never used [INFO] [stdout] --> using_structs/src/main.rs:31:4 [INFO] [stdout] | [INFO] [stdout] 31 | fn build_user(email: String, username: String) -> User { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find value `coin` in this scope [INFO] [stdout] --> enums_pattern_matching/src/main.rs:85:35 [INFO] [stdout] | [INFO] [stdout] 85 | if let Coin::Quarter(state) = coin { [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `active`, `username`, and `sign_in_count` are never read [INFO] [stdout] --> using_structs/src/main.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 1 | struct User { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 2 | active: bool, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 3 | username: String, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 4 | email: String, [INFO] [stdout] 5 | sign_in_count: u64, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `can_hold` is never used [INFO] [stdout] --> using_structs/src/main.rs:20:8 [INFO] [stdout] | [INFO] [stdout] 13 | impl Rectangle { [INFO] [stdout] | -------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 20 | fn can_hold(&self, other: &Rectangle) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `build_user` is never used [INFO] [stdout] --> using_structs/src/main.rs:31:4 [INFO] [stdout] | [INFO] [stdout] 31 | fn build_user(email: String, username: String) -> User { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::intrinsics::simd` [INFO] [stdout] --> enums_pattern_matching/src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::intrinsics::simd; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable library feature `core_intrinsics`: intrinsics are unlikely to ever be stabilized, instead they should be used through stabilized interfaces in the rest of the standard library [INFO] [stdout] --> enums_pattern_matching/src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::intrinsics::simd; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: add `#![feature(core_intrinsics)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-09-03; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `num_spaces` [INFO] [stdout] --> enums_pattern_matching/src/main.rs:51:16 [INFO] [stdout] | [INFO] [stdout] 51 | fn move_player(num_spaces: u8) {} [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_spaces` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0425, E0658. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0425`. [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> collections/src/main.rs:47:13 [INFO] [stdout] | [INFO] [stdout] 47 | 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] 47 - Int(i32), [INFO] [stdout] 47 + Int(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> collections/src/main.rs:48:15 [INFO] [stdout] | [INFO] [stdout] 48 | 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] 48 - Float(f64), [INFO] [stdout] 48 + Float(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> collections/src/main.rs:49:14 [INFO] [stdout] | [INFO] [stdout] 49 | 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] 49 - Text(String), [INFO] [stdout] 49 + Text(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `enums_pattern_matching` (bin "enums_pattern_matching" test) due to 2 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: unused variable: `word` [INFO] [stdout] --> ownership/src/main.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | let word = first_word(&my_string[0..6]); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_word` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `word` [INFO] [stdout] --> ownership/src/main.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | let word = first_word(&my_string[..]); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_word` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `word` [INFO] [stdout] --> ownership/src/main.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | let word = first_word(&my_string); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_word` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `word` [INFO] [stdout] --> ownership/src/main.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | let word = first_word(&my_string_literal[0..6]); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_word` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `word` [INFO] [stdout] --> ownership/src/main.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | let word = first_word(&my_string_literal[..]); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_word` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `word` [INFO] [stdout] --> ownership/src/main.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | let word = first_word(my_string_literal); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_word` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find value `coin` in this scope [INFO] [stdout] --> enums_pattern_matching/src/main.rs:85:35 [INFO] [stdout] | [INFO] [stdout] 85 | if let Coin::Quarter(state) = coin { [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> minigrep/src/main.rs:17:40 [INFO] [stdout] | [INFO] [stdout] 17 | fn parse_config(args: &Vec) -> (&str, &str) { [INFO] [stdout] | ------------ ^^^^^^^^^^^^ expected `(&str, &str)`, found `()` [INFO] [stdout] | | [INFO] [stdout] | implicitly returns `()` as its body has no tail or `return` expression [INFO] [stdout] | [INFO] [stdout] = note: expected tuple `(&str, &str)` [INFO] [stdout] found unit type `()` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> minigrep/src/main.rs:17:40 [INFO] [stdout] | [INFO] [stdout] 17 | fn parse_config(args: &Vec) -> (&str, &str) { [INFO] [stdout] | ------------ ^^^^^^^^^^^^ expected `(&str, &str)`, found `()` [INFO] [stdout] | | [INFO] [stdout] | implicitly returns `()` as its body has no tail or `return` expression [INFO] [stdout] | [INFO] [stdout] = note: expected tuple `(&str, &str)` [INFO] [stdout] found unit type `()` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::intrinsics::simd` [INFO] [stdout] --> enums_pattern_matching/src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::intrinsics::simd; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable library feature `core_intrinsics`: intrinsics are unlikely to ever be stabilized, instead they should be used through stabilized interfaces in the rest of the standard library [INFO] [stdout] --> enums_pattern_matching/src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::intrinsics::simd; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: add `#![feature(core_intrinsics)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-09-03; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0308`. [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0308`. [INFO] [stdout] [INFO] [stderr] error: could not compile `minigrep` (bin "minigrep") due to 1 previous error [INFO] [stderr] error: could not compile `minigrep` (bin "minigrep" test) due to 1 previous error [INFO] [stdout] warning: unused variable: `num_spaces` [INFO] [stdout] --> enums_pattern_matching/src/main.rs:51:16 [INFO] [stdout] | [INFO] [stdout] 51 | fn move_player(num_spaces: u8) {} [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_spaces` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0425, E0658. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0425`. [INFO] [stdout] [INFO] [stderr] error: could not compile `enums_pattern_matching` (bin "enums_pattern_matching") due to 2 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "c4e4e2f0c406453fba5fa47c4ced69d03632b5a35efd7827c5d7702be1f70cd9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c4e4e2f0c406453fba5fa47c4ced69d03632b5a35efd7827c5d7702be1f70cd9", kill_on_drop: false }` [INFO] [stdout] c4e4e2f0c406453fba5fa47c4ced69d03632b5a35efd7827c5d7702be1f70cd9