[INFO] cloning repository https://github.com/JoelGRod/Rust-Basics [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JoelGRod/Rust-Basics" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoelGRod%2FRust-Basics", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoelGRod%2FRust-Basics'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] c5c40f7ca8e810d84fc869bbc442a16b00e14988 [INFO] testing JoelGRod/Rust-Basics against beta-2022-04-10 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoelGRod%2FRust-Basics" "/workspace/builds/worker-113/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-113/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/JoelGRod/Rust-Basics on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/JoelGRod/Rust-Basics [INFO] finished tweaking git repo https://github.com/JoelGRod/Rust-Basics [INFO] tweaked toml for git repo https://github.com/JoelGRod/Rust-Basics written to /workspace/builds/worker-113/source/Cargo.toml [INFO] crate git repo https://github.com/JoelGRod/Rust-Basics already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] eb7f6da255ff589e6a205912629cf9afb4b40e3bb66fe609af3de226f6e3dd52 [INFO] running `Command { std: "docker" "start" "-a" "eb7f6da255ff589e6a205912629cf9afb4b40e3bb66fe609af3de226f6e3dd52", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "eb7f6da255ff589e6a205912629cf9afb4b40e3bb66fe609af3de226f6e3dd52", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "eb7f6da255ff589e6a205912629cf9afb4b40e3bb66fe609af3de226f6e3dd52", kill_on_drop: false }` [INFO] [stdout] eb7f6da255ff589e6a205912629cf9afb4b40e3bb66fe609af3de226f6e3dd52 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4f035b5e125f9a5924e782869dde10aba1e19ce58abed18365b4e9a37ec985bd [INFO] running `Command { std: "docker" "start" "-a" "4f035b5e125f9a5924e782869dde10aba1e19ce58abed18365b4e9a37ec985bd", kill_on_drop: false }` [INFO] [stderr] Compiling basics_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Read` [INFO] [stdout] --> src/basics/main/errors/app/errors_main.rs:3:21 [INFO] [stdout] | [INFO] [stdout] 3 | use std::io::{self, Read}; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `another_classifier` [INFO] [stdout] --> src/basics/main/collections/infrastructure/hashmap.rs:13:13 [INFO] [stdout] | [INFO] [stdout] 13 | let mut another_classifier: HashMap = [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_another_classifier` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `string_4` [INFO] [stdout] --> src/basics/main/collections/infrastructure/string.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | let string_4: String = "this is a String".into(); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_string_4` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `string_5` [INFO] [stdout] --> src/basics/main/collections/infrastructure/string.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 11 | let string_5: String = String::from("this is a String"); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_string_5` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `string_6` [INFO] [stdout] --> src/basics/main/collections/infrastructure/string.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | let string_6: String = format!("{}", "this is a String"); // Worst way [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_string_6` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `f` [INFO] [stdout] --> src/basics/main/errors/app/errors_main.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | let f: Result = File::open("src/output/hello.txt"); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `f` [INFO] [stdout] --> src/basics/main/errors/app/errors_main.rs:37:9 [INFO] [stdout] | [INFO] [stdout] 37 | let f = File::open("src/output/hello.txt").unwrap_or_else(|error| { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/basics/main/collections/infrastructure/hashmap.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | let mut another_classifier: HashMap = [INFO] [stdout] | ----^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `add_two` [INFO] [stdout] --> src/basics/main/functions/infrastructure/helpers.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn add_two(digit: i32) -> i32 { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `greeting` [INFO] [stdout] --> src/basics/main/functions/infrastructure/helpers.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | pub fn greeting(name: &str) -> String { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `read_username_from_file` [INFO] [stdout] --> src/basics/main/errors/app/errors_main.rs:88:8 [INFO] [stdout] | [INFO] [stdout] 88 | pub fn read_username_from_file() -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `turn_green` [INFO] [stdout] --> src/basics/main/structs/domain/structs/traffic_light.rs:15:12 [INFO] [stdout] | [INFO] [stdout] 15 | pub fn turn_green(&mut self) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Rectangle` [INFO] [stdout] --> src/basics/main/structs/domain/structs/rectangle.rs:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | pub struct Rectangle { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/basics/main/structs/domain/structs/rectangle.rs:8:12 [INFO] [stdout] | [INFO] [stdout] 8 | pub fn new(width: i32, height:i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `can_hold` [INFO] [stdout] --> src/basics/main/structs/domain/structs/rectangle.rs:11:12 [INFO] [stdout] | [INFO] [stdout] 11 | pub fn can_hold(&self, other: &Rectangle) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Guess` [INFO] [stdout] --> src/basics/main/structs/domain/structs/guess.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | pub struct Guess { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/basics/main/structs/domain/structs/guess.rs:6:12 [INFO] [stdout] | [INFO] [stdout] 6 | pub fn new(value: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Yellow` [INFO] [stdout] --> src/basics/main/structs/domain/enums/traffic_light_color.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | Yellow, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `TrafficLightColor` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/basics/main/structs/domain/enums/traffic_light_color.rs:3:10 [INFO] [stdout] | [INFO] [stdout] 3 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Green` [INFO] [stdout] --> src/basics/main/structs/domain/enums/traffic_light_color.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | Green, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `TrafficLightColor` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/basics/main/structs/domain/enums/traffic_light_color.rs:3:10 [INFO] [stdout] | [INFO] [stdout] 3 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `x` [INFO] [stdout] --> src/basics/main/traits_generics/domain/structs/generics.rs:10:12 [INFO] [stdout] | [INFO] [stdout] 10 | pub fn x(&self) -> &T { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 20 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.06s [INFO] running `Command { std: "docker" "inspect" "4f035b5e125f9a5924e782869dde10aba1e19ce58abed18365b4e9a37ec985bd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4f035b5e125f9a5924e782869dde10aba1e19ce58abed18365b4e9a37ec985bd", kill_on_drop: false }` [INFO] [stdout] 4f035b5e125f9a5924e782869dde10aba1e19ce58abed18365b4e9a37ec985bd [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2e9ee028c3c10a0877e64994633070f9ff2152cbca342126f721c2e942fe9bec [INFO] running `Command { std: "docker" "start" "-a" "2e9ee028c3c10a0877e64994633070f9ff2152cbca342126f721c2e942fe9bec", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling basics_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Read` [INFO] [stdout] --> src/basics/main/errors/app/errors_main.rs:3:21 [INFO] [stdout] | [INFO] [stdout] 3 | use std::io::{self, Read}; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `another_classifier` [INFO] [stdout] --> src/basics/main/collections/infrastructure/hashmap.rs:13:13 [INFO] [stdout] | [INFO] [stdout] 13 | let mut another_classifier: HashMap = [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_another_classifier` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `string_4` [INFO] [stdout] --> src/basics/main/collections/infrastructure/string.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | let string_4: String = "this is a String".into(); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_string_4` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `string_5` [INFO] [stdout] --> src/basics/main/collections/infrastructure/string.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 11 | let string_5: String = String::from("this is a String"); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_string_5` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `string_6` [INFO] [stdout] --> src/basics/main/collections/infrastructure/string.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | let string_6: String = format!("{}", "this is a String"); // Worst way [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_string_6` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `f` [INFO] [stdout] --> src/basics/main/errors/app/errors_main.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | let f: Result = File::open("src/output/hello.txt"); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `f` [INFO] [stdout] --> src/basics/main/errors/app/errors_main.rs:37:9 [INFO] [stdout] | [INFO] [stdout] 37 | let f = File::open("src/output/hello.txt").unwrap_or_else(|error| { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/basics/main/collections/infrastructure/hashmap.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | let mut another_classifier: HashMap = [INFO] [stdout] | ----^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `turn_green` [INFO] [stdout] --> src/basics/main/structs/domain/structs/traffic_light.rs:15:12 [INFO] [stdout] | [INFO] [stdout] 15 | pub fn turn_green(&mut self) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `value` [INFO] [stdout] --> src/basics/main/structs/domain/structs/guess.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | value: i32, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Yellow` [INFO] [stdout] --> src/basics/main/structs/domain/enums/traffic_light_color.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | Yellow, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `TrafficLightColor` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/basics/main/structs/domain/enums/traffic_light_color.rs:3:10 [INFO] [stdout] | [INFO] [stdout] 3 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Green` [INFO] [stdout] --> src/basics/main/structs/domain/enums/traffic_light_color.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | Green, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `TrafficLightColor` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/basics/main/structs/domain/enums/traffic_light_color.rs:3:10 [INFO] [stdout] | [INFO] [stdout] 3 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `x` [INFO] [stdout] --> src/basics/main/traits_generics/domain/structs/generics.rs:10:12 [INFO] [stdout] | [INFO] [stdout] 10 | pub fn x(&self) -> &T { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 13 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 43.68s [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/basics_rust-bff22d0975446430) [INFO] running `Command { std: "docker" "inspect" "2e9ee028c3c10a0877e64994633070f9ff2152cbca342126f721c2e942fe9bec", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2e9ee028c3c10a0877e64994633070f9ff2152cbca342126f721c2e942fe9bec", kill_on_drop: false }` [INFO] [stdout] 2e9ee028c3c10a0877e64994633070f9ff2152cbca342126f721c2e942fe9bec [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] bbf8319cbb6edbaf9f8781df1583203e62ee9d1457b1c0c8601fe2bc71ad891b [INFO] running `Command { std: "docker" "start" "-a" "bbf8319cbb6edbaf9f8781df1583203e62ee9d1457b1c0c8601fe2bc71ad891b", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: unused import: `Read` [INFO] [stderr] --> src/basics/main/errors/app/errors_main.rs:3:21 [INFO] [stderr] | [INFO] [stderr] 3 | use std::io::{self, Read}; [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `another_classifier` [INFO] [stderr] --> src/basics/main/collections/infrastructure/hashmap.rs:13:13 [INFO] [stderr] | [INFO] [stderr] 13 | let mut another_classifier: HashMap = [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_another_classifier` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `string_4` [INFO] [stderr] --> src/basics/main/collections/infrastructure/string.rs:9:9 [INFO] [stderr] | [INFO] [stderr] 9 | let string_4: String = "this is a String".into(); [INFO] [stderr] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_string_4` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `string_5` [INFO] [stderr] --> src/basics/main/collections/infrastructure/string.rs:11:9 [INFO] [stderr] | [INFO] [stderr] 11 | let string_5: String = String::from("this is a String"); [INFO] [stderr] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_string_5` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `string_6` [INFO] [stderr] --> src/basics/main/collections/infrastructure/string.rs:13:9 [INFO] [stderr] | [INFO] [stderr] 13 | let string_6: String = format!("{}", "this is a String"); // Worst way [INFO] [stderr] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_string_6` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `f` [INFO] [stderr] --> src/basics/main/errors/app/errors_main.rs:21:9 [INFO] [stderr] | [INFO] [stderr] 21 | let f: Result = File::open("src/output/hello.txt"); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `f` [INFO] [stderr] --> src/basics/main/errors/app/errors_main.rs:37:9 [INFO] [stderr] | [INFO] [stderr] 37 | let f = File::open("src/output/hello.txt").unwrap_or_else(|error| { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/basics/main/collections/infrastructure/hashmap.rs:13:9 [INFO] [stderr] | [INFO] [stderr] 13 | let mut another_classifier: HashMap = [INFO] [stderr] | ----^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `turn_green` [INFO] [stderr] --> src/basics/main/structs/domain/structs/traffic_light.rs:15:12 [INFO] [stderr] | [INFO] [stderr] 15 | pub fn turn_green(&mut self) { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never read: `value` [INFO] [stderr] --> src/basics/main/structs/domain/structs/guess.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | value: i32, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Yellow` [INFO] [stderr] --> src/basics/main/structs/domain/enums/traffic_light_color.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | Yellow, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: `TrafficLightColor` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> src/basics/main/structs/domain/enums/traffic_light_color.rs:3:10 [INFO] [stderr] | [INFO] [stderr] 3 | #[derive(Debug)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Green` [INFO] [stderr] --> src/basics/main/structs/domain/enums/traffic_light_color.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | Green, [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] note: `TrafficLightColor` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> src/basics/main/structs/domain/enums/traffic_light_color.rs:3:10 [INFO] [stderr] | [INFO] [stderr] 3 | #[derive(Debug)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `x` [INFO] [stderr] --> src/basics/main/traits_generics/domain/structs/generics.rs:10:12 [INFO] [stderr] | [INFO] [stderr] 10 | pub fn x(&self) -> &T { [INFO] [stderr] | ^ [INFO] [stderr] [INFO] [stderr] warning: `basics_rust` (bin "basics_rust" test) generated 13 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 3.12s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/basics_rust-bff22d0975446430) [INFO] [stdout] [INFO] [stdout] running 10 tests [INFO] [stdout] test basics::tests::errors::app::errors_main::should_return_result_ok ... ok [INFO] [stdout] test basics::tests::examples::it_works::it_works ... ok [INFO] [stdout] test basics::tests::examples::it_works::it_works_result ... ok [INFO] [stdout] test basics::tests::functions::infrastructure::helpers::it_adds_two ... ok [INFO] [stdout] test basics::tests::functions::infrastructure::helpers::greeting_contains_name ... ok [INFO] [stdout] test basics::tests::functions::infrastructure::helpers::it_not_adds_three ... ok [INFO] [stdout] test basics::tests::structs::domain::structs::rectangle::smaller_cannot_hold_larger ... ok [INFO] [stdout] test basics::tests::structs::domain::structs::rectangle::larger_can_hold_smaller ... ok [INFO] [stdout] test basics::tests::structs::domain::structs::guess::should_panic_with_greater_than_one_hundred - should panic ... ok [INFO] [stdout] test basics::tests::structs::domain::structs::guess::should_panic_with_lower_than_one - should panic ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "bbf8319cbb6edbaf9f8781df1583203e62ee9d1457b1c0c8601fe2bc71ad891b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bbf8319cbb6edbaf9f8781df1583203e62ee9d1457b1c0c8601fe2bc71ad891b", kill_on_drop: false }` [INFO] [stdout] bbf8319cbb6edbaf9f8781df1583203e62ee9d1457b1c0c8601fe2bc71ad891b