[INFO] cloning repository https://github.com/mihastele/rust-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mihastele/rust-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmihastele%2Frust-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmihastele%2Frust-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 69e72d5caedfb69f886b1da6eb8e1d24fd4032a6
[INFO] checking mihastele/rust-playground against try#df1b9bf194c9183fb7c0604484171064069ce232 for pr-149195-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmihastele%2Frust-playground" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mihastele/rust-playground
[INFO] finished tweaking git repo https://github.com/mihastele/rust-playground
[INFO] tweaked toml for git repo https://github.com/mihastele/rust-playground written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mihastele/rust-playground on toolchain df1b9bf194c9183fb7c0604484171064069ce232
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+df1b9bf194c9183fb7c0604484171064069ce232" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mihastele/rust-playground 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" "+df1b9bf194c9183fb7c0604484171064069ce232" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking mihastele/rust-playground against try#df1b9bf194c9183fb7c0604484171064069ce232 for pr-149195-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmihastele%2Frust-playground" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mihastele/rust-playground
[INFO] finished tweaking git repo https://github.com/mihastele/rust-playground
[INFO] tweaked toml for git repo https://github.com/mihastele/rust-playground written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mihastele/rust-playground on toolchain df1b9bf194c9183fb7c0604484171064069ce232
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+df1b9bf194c9183fb7c0604484171064069ce232" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mihastele/rust-playground 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" "+df1b9bf194c9183fb7c0604484171064069ce232" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:29356a839a4d14451438f794ce8414e707d72405f44418718d724d22562fe786" "/opt/rustwide/cargo-home/bin/cargo" "+df1b9bf194c9183fb7c0604484171064069ce232" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94839367c6ef4df716c8643b5c6eb31a20ae18f64be745b3f766651f24aec71e
[INFO] running `Command { std: "docker" "start" "-a" "94839367c6ef4df716c8643b5c6eb31a20ae18f64be745b3f766651f24aec71e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94839367c6ef4df716c8643b5c6eb31a20ae18f64be745b3f766651f24aec71e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94839367c6ef4df716c8643b5c6eb31a20ae18f64be745b3f766651f24aec71e", kill_on_drop: false }`
[INFO] [stdout] 94839367c6ef4df716c8643b5c6eb31a20ae18f64be745b3f766651f24aec71e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:29356a839a4d14451438f794ce8414e707d72405f44418718d724d22562fe786" "/opt/rustwide/cargo-home/bin/cargo" "+df1b9bf194c9183fb7c0604484171064069ce232" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5afd5e57a9efac4cae8a6d032d906a28b88550b59d01e2a8e94b2bdc74d20f04
[INFO] running `Command { std: "docker" "start" "-a" "5afd5e57a9efac4cae8a6d032d906a28b88550b59d01e2a8e94b2bdc74d20f04", kill_on_drop: false }`
[INFO] [stderr]     Checking untitled v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `slice`
[INFO] [stdout]   --> src/main.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let slice = &numbers[1..4];
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_slice`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `myc`
[INFO] [stdout]   --> src/main.rs:75:9
[INFO] [stdout]    |
[INFO] [stdout] 75 |     let myc = Red;
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_myc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c2`
[INFO] [stdout]   --> src/main.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 87 |     let c2 = ColorsGeneric::Red("#f00");
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_c2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c3`
[INFO] [stdout]   --> src/main.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |     let c3 = ColorsGeneric::Red(255);
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_c3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p3`
[INFO] [stdout]   --> src/main.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 90 |     let p3: Point2Gen<i32, f64> = Point2Gen { x: 32, y: 6.6 };
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_p3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0170]: pattern binding `Spade` is named the same as one of the variants of the type `Suit`
[INFO] [stdout]    --> src/main.rs:238:9
[INFO] [stdout]     |
[INFO] [stdout] 238 |         Spade => { println!("\u{2660}") }
[INFO] [stdout]     |         ^^^^^ help: to match on the variant, qualify the path: `Suit::Spade`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[deny(bindings_with_variant_name)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0170]: pattern binding `Club` is named the same as one of the variants of the type `Suit`
[INFO] [stdout]    --> src/main.rs:239:9
[INFO] [stdout]     |
[INFO] [stdout] 239 |         Club => { println!("\u{2663}") }
[INFO] [stdout]     |         ^^^^ help: to match on the variant, qualify the path: `Suit::Club`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `untitled` (bin "untitled") due to 2 previous errors; 22 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/main.rs:239:9
[INFO] [stdout]     |
[INFO] [stdout] 239 |         Club => { println!("\u{2663}") }
[INFO] [stdout]     |         ^^^^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/main.rs:239:9
[INFO] [stdout]     |
[INFO] [stdout] 237 |         Heart => { println!("\u{2665}") }
[INFO] [stdout]     |         ----- matches some of the same values
[INFO] [stdout] 238 |         Spade => { println!("\u{2660}") }
[INFO] [stdout]     |         ----- matches some of the same values
[INFO] [stdout] 239 |         Club => { println!("\u{2663}") }
[INFO] [stdout]     |         ^^^^ collectively making this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/main.rs:240:9
[INFO] [stdout]     |
[INFO] [stdout] 240 |         Diaomond => { println!("\u{2666}") }
[INFO] [stdout]     |         ^^^^^^^^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/main.rs:240:9
[INFO] [stdout]     |
[INFO] [stdout] 237 |         Heart => { println!("\u{2665}") }
[INFO] [stdout]     |         ----- matches some of the same values
[INFO] [stdout] 238 |         Spade => { println!("\u{2660}") }
[INFO] [stdout]     |         ----- matches some of the same values
[INFO] [stdout] 239 |         Club => { println!("\u{2663}") }
[INFO] [stdout] 240 |         Diaomond => { println!("\u{2666}") }
[INFO] [stdout]     |         ^^^^^^^^ collectively making this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Spade`
[INFO] [stdout]    --> src/main.rs:238:9
[INFO] [stdout]     |
[INFO] [stdout] 238 |         Spade => { println!("\u{2660}") }
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: you might have meant to pattern match on the similarly named variant `Spade`
[INFO] [stdout]     |
[INFO] [stdout] 238 |         Suit::Spade => { println!("\u{2660}") }
[INFO] [stdout]     |         ++++++
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 238 |         _Spade => { println!("\u{2660}") }
[INFO] [stdout]     |         +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Club`
[INFO] [stdout]    --> src/main.rs:239:9
[INFO] [stdout]     |
[INFO] [stdout] 239 |         Club => { println!("\u{2663}") }
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: you might have meant to pattern match on the similarly named variant `Club`
[INFO] [stdout]     |
[INFO] [stdout] 239 |         Suit::Club => { println!("\u{2663}") }
[INFO] [stdout]     |         ++++++
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 239 |         _Club => { println!("\u{2663}") }
[INFO] [stdout]     |         +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Diaomond`
[INFO] [stdout]    --> src/main.rs:240:9
[INFO] [stdout]     |
[INFO] [stdout] 240 |         Diaomond => { println!("\u{2666}") }
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: you might have meant to pattern match on the similarly named variant `Diamond`
[INFO] [stdout]     |
[INFO] [stdout] 240 -         Diaomond => { println!("\u{2666}") }
[INFO] [stdout] 240 +         Suit::Diamond => { println!("\u{2666}") }
[INFO] [stdout]     |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 240 |         _Diaomond => { println!("\u{2666}") }
[INFO] [stdout]     |         +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `country` is never used
[INFO] [stdout]    --> src/main.rs:217:4
[INFO] [stdout]     |
[INFO] [stdout] 217 | fn country(code: i32) {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Spade` and `Club` are never constructed
[INFO] [stdout]    --> src/main.rs:230:5
[INFO] [stdout]     |
[INFO] [stdout] 228 | enum Suit {
[INFO] [stdout]     |      ---- variants in this enum
[INFO] [stdout] 229 |     Heart,
[INFO] [stdout] 230 |     Spade,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 231 |     Club,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Green` and `Blue` are never constructed
[INFO] [stdout]    --> src/main.rs:260:5
[INFO] [stdout]     |
[INFO] [stdout] 258 | enum Colors {
[INFO] [stdout]     |      ------ variants in this enum
[INFO] [stdout] 259 |     Red,
[INFO] [stdout] 260 |     Green,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 261 |     Blue,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Colors` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/main.rs:266:10
[INFO] [stdout]     |
[INFO] [stdout] 266 |     Name(String),
[INFO] [stdout]     |     ---- ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `EnumWithTypes` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 266 -     Name(String),
[INFO] [stdout] 266 +     Name(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Surname` and `Age` are never constructed
[INFO] [stdout]    --> src/main.rs:267:5
[INFO] [stdout]     |
[INFO] [stdout] 265 | enum EnumWithTypes {
[INFO] [stdout]     |      ------------- variants in this enum
[INFO] [stdout] 266 |     Name(String),
[INFO] [stdout] 267 |     Surname(String),
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 268 |     Age(u32),
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `EnumWithTypes` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `x` and `y` are never read
[INFO] [stdout]    --> src/main.rs:282:5
[INFO] [stdout]     |
[INFO] [stdout] 281 | struct Point<T> {
[INFO] [stdout]     |        ----- fields in this struct
[INFO] [stdout] 282 |     x: T,
[INFO] [stdout]     |     ^
[INFO] [stdout] 283 |     y: T,
[INFO] [stdout]     |     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Point` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `x` and `y` are never read
[INFO] [stdout]    --> src/main.rs:288:5
[INFO] [stdout]     |
[INFO] [stdout] 287 | struct Point2Gen<T, V> {
[INFO] [stdout]     |        --------- fields in this struct
[INFO] [stdout] 288 |     x: T,
[INFO] [stdout]     |     ^
[INFO] [stdout] 289 |     y: V,
[INFO] [stdout]     |     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Point2Gen` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Blue` is never constructed
[INFO] [stdout]    --> src/main.rs:294:5
[INFO] [stdout]     |
[INFO] [stdout] 292 | enum ColorsGeneric<T> {
[INFO] [stdout]     |      ------------- variant in this enum
[INFO] [stdout] 293 |     Red(T),
[INFO] [stdout] 294 |     Blue(T),
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused closure that must be used
[INFO] [stdout]    --> src/main.rs:138:5
[INFO] [stdout]     |
[INFO] [stdout] 138 | /     |a: i32, b: i32| -> i32 {
[INFO] [stdout] 139 | |         println!("sum {}", a + b);
[INFO] [stdout] 140 | |         // return a + b;
[INFO] [stdout] 141 | |         a + b
[INFO] [stdout] 142 | |     };
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: closures are lazy and do nothing unless called
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Spade` should have a snake case name
[INFO] [stdout]    --> src/main.rs:238:9
[INFO] [stdout]     |
[INFO] [stdout] 238 |         Spade => { println!("\u{2660}") }
[INFO] [stdout]     |         ^^^^^ help: convert the identifier to snake case (notice the capitalization): `spade`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Club` should have a snake case name
[INFO] [stdout]    --> src/main.rs:239:9
[INFO] [stdout]     |
[INFO] [stdout] 239 |         Club => { println!("\u{2663}") }
[INFO] [stdout]     |         ^^^^ help: convert the identifier to snake case (notice the capitalization): `club`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Diaomond` should have a snake case name
[INFO] [stdout]    --> src/main.rs:240:9
[INFO] [stdout]     |
[INFO] [stdout] 240 |         Diaomond => { println!("\u{2666}") }
[INFO] [stdout]     |         ^^^^^^^^ help: convert the identifier to snake case: `diaomond`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0170`.
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `slice`
[INFO] [stdout]   --> src/main.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let slice = &numbers[1..4];
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_slice`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `myc`
[INFO] [stdout]   --> src/main.rs:75:9
[INFO] [stdout]    |
[INFO] [stdout] 75 |     let myc = Red;
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_myc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c2`
[INFO] [stdout]   --> src/main.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 87 |     let c2 = ColorsGeneric::Red("#f00");
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_c2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c3`
[INFO] [stdout]   --> src/main.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |     let c3 = ColorsGeneric::Red(255);
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_c3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p3`
[INFO] [stdout]   --> src/main.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 90 |     let p3: Point2Gen<i32, f64> = Point2Gen { x: 32, y: 6.6 };
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_p3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0170]: pattern binding `Spade` is named the same as one of the variants of the type `Suit`
[INFO] [stdout]    --> src/main.rs:238:9
[INFO] [stdout]     |
[INFO] [stdout] 238 |         Spade => { println!("\u{2660}") }
[INFO] [stdout]     |         ^^^^^ help: to match on the variant, qualify the path: `Suit::Spade`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[deny(bindings_with_variant_name)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0170]: pattern binding `Club` is named the same as one of the variants of the type `Suit`
[INFO] [stdout]    --> src/main.rs:239:9
[INFO] [stdout]     |
[INFO] [stdout] 239 |         Club => { println!("\u{2663}") }
[INFO] [stdout]     |         ^^^^ help: to match on the variant, qualify the path: `Suit::Club`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/main.rs:239:9
[INFO] [stdout]     |
[INFO] [stdout] 239 |         Club => { println!("\u{2663}") }
[INFO] [stdout]     |         ^^^^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/main.rs:239:9
[INFO] [stdout]     |
[INFO] [stdout] 237 |         Heart => { println!("\u{2665}") }
[INFO] [stdout]     |         ----- matches some of the same values
[INFO] [stdout] 238 |         Spade => { println!("\u{2660}") }
[INFO] [stdout]     |         ----- matches some of the same values
[INFO] [stdout] 239 |         Club => { println!("\u{2663}") }
[INFO] [stdout]     |         ^^^^ collectively making this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/main.rs:240:9
[INFO] [stdout]     |
[INFO] [stdout] 240 |         Diaomond => { println!("\u{2666}") }
[INFO] [stdout]     |         ^^^^^^^^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/main.rs:240:9
[INFO] [stdout]     |
[INFO] [stdout] 237 |         Heart => { println!("\u{2665}") }
[INFO] [stdout]     |         ----- matches some of the same values
[INFO] [stdout] 238 |         Spade => { println!("\u{2660}") }
[INFO] [stdout]     |         ----- matches some of the same values
[INFO] [stdout] 239 |         Club => { println!("\u{2663}") }
[INFO] [stdout] 240 |         Diaomond => { println!("\u{2666}") }
[INFO] [stdout]     |         ^^^^^^^^ collectively making this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Spade`
[INFO] [stdout]    --> src/main.rs:238:9
[INFO] [stdout]     |
[INFO] [stdout] 238 |         Spade => { println!("\u{2660}") }
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: you might have meant to pattern match on the similarly named variant `Spade`
[INFO] [stdout]     |
[INFO] [stdout] 238 |         Suit::Spade => { println!("\u{2660}") }
[INFO] [stdout]     |         ++++++
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 238 |         _Spade => { println!("\u{2660}") }
[INFO] [stdout]     |         +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Club`
[INFO] [stdout]    --> src/main.rs:239:9
[INFO] [stdout]     |
[INFO] [stdout] 239 |         Club => { println!("\u{2663}") }
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: you might have meant to pattern match on the similarly named variant `Club`
[INFO] [stdout]     |
[INFO] [stdout] 239 |         Suit::Club => { println!("\u{2663}") }
[INFO] [stdout]     |         ++++++
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 239 |         _Club => { println!("\u{2663}") }
[INFO] [stdout]     |         +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Diaomond`
[INFO] [stdout]    --> src/main.rs:240:9
[INFO] [stdout]     |
[INFO] [stdout] 240 |         Diaomond => { println!("\u{2666}") }
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: you might have meant to pattern match on the similarly named variant `Diamond`
[INFO] [stdout]     |
[INFO] [stdout] 240 -         Diaomond => { println!("\u{2666}") }
[INFO] [stdout] 240 +         Suit::Diamond => { println!("\u{2666}") }
[INFO] [stdout]     |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 240 |         _Diaomond => { println!("\u{2666}") }
[INFO] [stdout]     |         +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `country` is never used
[INFO] [stdout]    --> src/main.rs:217:4
[INFO] [stdout]     |
[INFO] [stdout] 217 | fn country(code: i32) {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Spade` and `Club` are never constructed
[INFO] [stdout]    --> src/main.rs:230:5
[INFO] [stdout]     |
[INFO] [stdout] 228 | enum Suit {
[INFO] [stdout]     |      ---- variants in this enum
[INFO] [stdout] 229 |     Heart,
[INFO] [stdout] 230 |     Spade,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 231 |     Club,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Green` and `Blue` are never constructed
[INFO] [stdout]    --> src/main.rs:260:5
[INFO] [stdout]     |
[INFO] [stdout] 258 | enum Colors {
[INFO] [stdout]     |      ------ variants in this enum
[INFO] [stdout] 259 |     Red,
[INFO] [stdout] 260 |     Green,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 261 |     Blue,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Colors` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/main.rs:266:10
[INFO] [stdout]     |
[INFO] [stdout] 266 |     Name(String),
[INFO] [stdout]     |     ---- ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `EnumWithTypes` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 266 -     Name(String),
[INFO] [stdout] 266 +     Name(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Surname` and `Age` are never constructed
[INFO] [stdout]    --> src/main.rs:267:5
[INFO] [stdout]     |
[INFO] [stdout] 265 | enum EnumWithTypes {
[INFO] [stdout]     |      ------------- variants in this enum
[INFO] [stdout] 266 |     Name(String),
[INFO] [stdout] 267 |     Surname(String),
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 268 |     Age(u32),
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `EnumWithTypes` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `x` and `y` are never read
[INFO] [stdout]    --> src/main.rs:282:5
[INFO] [stdout]     |
[INFO] [stdout] 281 | struct Point<T> {
[INFO] [stdout]     |        ----- fields in this struct
[INFO] [stdout] 282 |     x: T,
[INFO] [stdout]     |     ^
[INFO] [stdout] 283 |     y: T,
[INFO] [stdout]     |     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Point` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `x` and `y` are never read
[INFO] [stdout]    --> src/main.rs:288:5
[INFO] [stdout]     |
[INFO] [stdout] 287 | struct Point2Gen<T, V> {
[INFO] [stdout]     |        --------- fields in this struct
[INFO] [stdout] 288 |     x: T,
[INFO] [stdout]     |     ^
[INFO] [stdout] 289 |     y: V,
[INFO] [stdout]     |     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Point2Gen` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Blue` is never constructed
[INFO] [stdout]    --> src/main.rs:294:5
[INFO] [stdout]     |
[INFO] [stdout] 292 | enum ColorsGeneric<T> {
[INFO] [stdout]     |      ------------- variant in this enum
[INFO] [stdout] 293 |     Red(T),
[INFO] [stdout] 294 |     Blue(T),
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused closure that must be used
[INFO] [stdout]    --> src/main.rs:138:5
[INFO] [stdout]     |
[INFO] [stdout] 138 | /     |a: i32, b: i32| -> i32 {
[INFO] [stdout] 139 | |         println!("sum {}", a + b);
[INFO] [stdout] 140 | |         // return a + b;
[INFO] [stdout] 141 | |         a + b
[INFO] [stdout] 142 | |     };
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: closures are lazy and do nothing unless called
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Spade` should have a snake case name
[INFO] [stdout]    --> src/main.rs:238:9
[INFO] [stdout]     |
[INFO] [stdout] 238 |         Spade => { println!("\u{2660}") }
[INFO] [stdout]     |         ^^^^^ help: convert the identifier to snake case (notice the capitalization): `spade`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Club` should have a snake case name
[INFO] [stdout]    --> src/main.rs:239:9
[INFO] [stdout]     |
[INFO] [stdout] 239 |         Club => { println!("\u{2663}") }
[INFO] [stdout]     |         ^^^^ help: convert the identifier to snake case (notice the capitalization): `club`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Diaomond` should have a snake case name
[INFO] [stdout]    --> src/main.rs:240:9
[INFO] [stdout]     |
[INFO] [stdout] 240 |         Diaomond => { println!("\u{2666}") }
[INFO] [stdout]     |         ^^^^^^^^ help: convert the identifier to snake case: `diaomond`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0170`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `untitled` (bin "untitled" test) due to 2 previous errors; 22 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "5afd5e57a9efac4cae8a6d032d906a28b88550b59d01e2a8e94b2bdc74d20f04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5afd5e57a9efac4cae8a6d032d906a28b88550b59d01e2a8e94b2bdc74d20f04", kill_on_drop: false }`
[INFO] [stdout] 5afd5e57a9efac4cae8a6d032d906a28b88550b59d01e2a8e94b2bdc74d20f04