[INFO] cloning repository https://github.com/venkatesh16031999/Learn-Rust-Programming
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/venkatesh16031999/Learn-Rust-Programming" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvenkatesh16031999%2FLearn-Rust-Programming", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvenkatesh16031999%2FLearn-Rust-Programming'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 96e2102fbcd3e81277d6b600f5519edd971162a4
[INFO] checking venkatesh16031999/Learn-Rust-Programming against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvenkatesh16031999%2FLearn-Rust-Programming" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/venkatesh16031999/Learn-Rust-Programming on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/venkatesh16031999/Learn-Rust-Programming
[INFO] finished tweaking git repo https://github.com/venkatesh16031999/Learn-Rust-Programming
[INFO] tweaked toml for git repo https://github.com/venkatesh16031999/Learn-Rust-Programming written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/venkatesh16031999/Learn-Rust-Programming 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b516387b15b04904d3dd7a4df6a71ad5573afff93b4833adf511666cd6ccfe2
[INFO] running `Command { std: "docker" "start" "-a" "2b516387b15b04904d3dd7a4df6a71ad5573afff93b4833adf511666cd6ccfe2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b516387b15b04904d3dd7a4df6a71ad5573afff93b4833adf511666cd6ccfe2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b516387b15b04904d3dd7a4df6a71ad5573afff93b4833adf511666cd6ccfe2", kill_on_drop: false }`
[INFO] [stdout] 2b516387b15b04904d3dd7a4df6a71ad5573afff93b4833adf511666cd6ccfe2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03858e1574b5ada68cd40c6ebdbf8ede11f2e1d68a9f729adbdee43469ec526a
[INFO] running `Command { std: "docker" "start" "-a" "03858e1574b5ada68cd40c6ebdbf8ede11f2e1d68a9f729adbdee43469ec526a", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.12
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]     Checking learn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/bin/generic-function.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Dress {
[INFO] [stdout]   |        ----- field in this struct
[INFO] [stdout] 6 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Biconomy` is never constructed
[INFO] [stdout]  --> src/bin/enums-structs.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Protocol {
[INFO] [stdout]   |      -------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 5 |     Biconomy
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `priority` is never read
[INFO] [stdout]   --> src/bin/enums-structs.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | struct BlockchainProtocol {
[INFO] [stdout]    |        ------------------ field in this struct
[INFO] [stdout] 9  |     name: Protocol,
[INFO] [stdout] 10 |     priority: i32
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `variant` and `color` are never read
[INFO] [stdout]   --> src/bin/generic-structure.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct Vechile<T: Variant, C: Color> {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] 17 |     variant: T,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 18 |     color: C,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Vechile` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `VechileAlternative` is never constructed
[INFO] [stdout]   --> src/bin/generic-structure.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct VechileAlternative<T, C>
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/bin/generic-structure.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | / impl<T, C> Vechile<T, C>
[INFO] [stdout] 32 | | where
[INFO] [stdout] 33 | |     T: Variant + Debug,
[INFO] [stdout] 34 | |     C: Color + Debug,
[INFO] [stdout]    | |_____________________- associated function in this implementation
[INFO] [stdout] 35 |   {
[INFO] [stdout] 36 |       fn new(variant: T, color: C) -> Self {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Biconomy` is never constructed
[INFO] [stdout]  --> src/bin/enums-structs.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Protocol {
[INFO] [stdout]   |      -------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 5 |     Biconomy
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/bin/advanced-match.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |             Product { name, ..} => {
[INFO] [stdout]    |             ------------------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 51 |             _ => ()
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `priority` is never read
[INFO] [stdout]   --> src/bin/enums-structs.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | struct BlockchainProtocol {
[INFO] [stdout]    |        ------------------ field in this struct
[INFO] [stdout] 9  |     name: Protocol,
[INFO] [stdout] 10 |     priority: i32
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Flat` is never constructed
[INFO] [stdout]  --> src/bin/advanced-match.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Discount {
[INFO] [stdout]   |      -------- variant in this enum
[INFO] [stdout] 2 |     Offer(i32),
[INFO] [stdout] 3 |     Flat(i32)
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/thread.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     thread_one.join();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let _ = thread_one.join();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `variant` and `color` are never read
[INFO] [stdout]   --> src/bin/generic-structure.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct Vechile<T: Variant, C: Color> {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] 17 |     variant: T,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 18 |     color: C,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Vechile` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `VechileAlternative` is never constructed
[INFO] [stdout]   --> src/bin/generic-structure.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct VechileAlternative<T, C>
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/bin/generic-structure.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | / impl<T, C> Vechile<T, C>
[INFO] [stdout] 32 | | where
[INFO] [stdout] 33 | |     T: Variant + Debug,
[INFO] [stdout] 34 | |     C: Color + Debug,
[INFO] [stdout]    | |_____________________- associated function in this implementation
[INFO] [stdout] 35 |   {
[INFO] [stdout] 36 |       fn new(variant: T, color: C) -> Self {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/bin/slice.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |         _ => unreachable!("Panic Error"),
[INFO] [stdout]    |         ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/bin/slice.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |         [first, .., last] => println!("First {}, Last {}", first, last),
[INFO] [stdout]    |         ----------------- matches some of the same values
[INFO] [stdout] 19 |         [single] => println!("Single {}", single),
[INFO] [stdout]    |         -------- matches some of the same values
[INFO] [stdout] 20 |         [] => println!("Nothing Found"),
[INFO] [stdout]    |         -- matches some of the same values
[INFO] [stdout] 21 |         _ => unreachable!("Panic Error"),
[INFO] [stdout]    |         ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/thread.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     thread_one.join();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let _ = thread_one.join();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/bin/generic-function.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Dress {
[INFO] [stdout]   |        ----- field in this struct
[INFO] [stdout] 6 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/billing-project.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |         let mut input = get_input();
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/billing-project.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |         let mut input = get_input();
[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: unused variable: `s`
[INFO] [stdout]   --> src/bin/match-guard.rs:51:22
[INFO] [stdout]    |
[INFO] [stdout] 51 |                 age: s @ 100..=200, ..
[INFO] [stdout]    |                      ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/bin/match-guard.rs:61:15
[INFO] [stdout]    |
[INFO] [stdout] 61 |         Score(s @ 10) => println!("score is 10"),
[INFO] [stdout]    |               ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/match-guard.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |         n @ 5 | n @ 10 => println!("Number is 5 / 10"),
[INFO] [stdout]    |         ^       ^
[INFO] [stdout]    |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]    |
[INFO] [stdout] 66 |         _n @ 5 | _n @ 10 => println!("Number is 5 / 10"),
[INFO] [stdout]    |         ~~       ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/match-guard.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |         n @ 100..=200 => println!("Number is between 100 to 200"),
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/bin/advanced-match.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |             Product { name, ..} => {
[INFO] [stdout]    |             ------------------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 51 |             _ => ()
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Flat` is never constructed
[INFO] [stdout]  --> src/bin/advanced-match.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Discount {
[INFO] [stdout]   |      -------- variant in this enum
[INFO] [stdout] 2 |     Offer(i32),
[INFO] [stdout] 3 |     Flat(i32)
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/bin/slice.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |         _ => unreachable!("Panic Error"),
[INFO] [stdout]    |         ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/bin/slice.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |         [first, .., last] => println!("First {}, Last {}", first, last),
[INFO] [stdout]    |         ----------------- matches some of the same values
[INFO] [stdout] 19 |         [single] => println!("Single {}", single),
[INFO] [stdout]    |         -------- matches some of the same values
[INFO] [stdout] 20 |         [] => println!("Nothing Found"),
[INFO] [stdout]    |         -- matches some of the same values
[INFO] [stdout] 21 |         _ => unreachable!("Panic Error"),
[INFO] [stdout]    |         ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/bin/match-guard.rs:51:22
[INFO] [stdout]    |
[INFO] [stdout] 51 |                 age: s @ 100..=200, ..
[INFO] [stdout]    |                      ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/bin/match-guard.rs:61:15
[INFO] [stdout]    |
[INFO] [stdout] 61 |         Score(s @ 10) => println!("score is 10"),
[INFO] [stdout]    |               ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/match-guard.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |         n @ 5 | n @ 10 => println!("Number is 5 / 10"),
[INFO] [stdout]    |         ^       ^
[INFO] [stdout]    |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]    |
[INFO] [stdout] 66 |         _n @ 5 | _n @ 10 => println!("Number is 5 / 10"),
[INFO] [stdout]    |         ~~       ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/match-guard.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |         n @ 100..=200 => println!("Number is between 100 to 200"),
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "03858e1574b5ada68cd40c6ebdbf8ede11f2e1d68a9f729adbdee43469ec526a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03858e1574b5ada68cd40c6ebdbf8ede11f2e1d68a9f729adbdee43469ec526a", kill_on_drop: false }`
[INFO] [stdout] 03858e1574b5ada68cd40c6ebdbf8ede11f2e1d68a9f729adbdee43469ec526a
[INFO] checking venkatesh16031999/Learn-Rust-Programming against try#f9935d29d867449445ee008640ccca1bf1ae0889+rustflags=-Dtail_expr_drop_order for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvenkatesh16031999%2FLearn-Rust-Programming" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/venkatesh16031999/Learn-Rust-Programming on toolchain f9935d29d867449445ee008640ccca1bf1ae0889
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/venkatesh16031999/Learn-Rust-Programming
[INFO] finished tweaking git repo https://github.com/venkatesh16031999/Learn-Rust-Programming
[INFO] tweaked toml for git repo https://github.com/venkatesh16031999/Learn-Rust-Programming written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/venkatesh16031999/Learn-Rust-Programming 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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5533b4eca6c0115673e38b08505616c16144695fba413475f33704151e4f4fc5
[INFO] running `Command { std: "docker" "start" "-a" "5533b4eca6c0115673e38b08505616c16144695fba413475f33704151e4f4fc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5533b4eca6c0115673e38b08505616c16144695fba413475f33704151e4f4fc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5533b4eca6c0115673e38b08505616c16144695fba413475f33704151e4f4fc5", kill_on_drop: false }`
[INFO] [stdout] 5533b4eca6c0115673e38b08505616c16144695fba413475f33704151e4f4fc5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dtail_expr_drop_order" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c909c46f36a67e3786cdbe927e70710fcc3071308d0838c35c761b5e164a866
[INFO] running `Command { std: "docker" "start" "-a" "3c909c46f36a67e3786cdbe927e70710fcc3071308d0838c35c761b5e164a866", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.12
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]     Checking learn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/billing-project.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |         let mut input = get_input();
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Biconomy` is never constructed
[INFO] [stdout]  --> src/bin/enums-structs.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Protocol {
[INFO] [stdout]   |      -------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 5 |     Biconomy
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `priority` is never read
[INFO] [stdout]   --> src/bin/enums-structs.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | struct BlockchainProtocol {
[INFO] [stdout]    |        ------------------ field in this struct
[INFO] [stdout] 9  |     name: Protocol,
[INFO] [stdout] 10 |     priority: i32
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/billing-project.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |         let mut input = get_input();
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `variant` and `color` are never read
[INFO] [stdout]   --> src/bin/generic-structure.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct Vechile<T: Variant, C: Color> {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] 17 |     variant: T,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 18 |     color: C,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Vechile` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `VechileAlternative` is never constructed
[INFO] [stdout]   --> src/bin/generic-structure.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct VechileAlternative<T, C>
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/bin/slice.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |         _ => unreachable!("Panic Error"),
[INFO] [stdout]    |         ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/bin/slice.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |         [first, .., last] => println!("First {}, Last {}", first, last),
[INFO] [stdout]    |         ----------------- matches some of the same values
[INFO] [stdout] 19 |         [single] => println!("Single {}", single),
[INFO] [stdout]    |         -------- matches some of the same values
[INFO] [stdout] 20 |         [] => println!("Nothing Found"),
[INFO] [stdout]    |         -- matches some of the same values
[INFO] [stdout] 21 |         _ => unreachable!("Panic Error"),
[INFO] [stdout]    |         ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `variant` and `color` are never read
[INFO] [stdout]   --> src/bin/generic-structure.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct Vechile<T: Variant, C: Color> {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] 17 |     variant: T,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 18 |     color: C,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Vechile` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/bin/generic-structure.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | / impl<T, C> Vechile<T, C>
[INFO] [stdout] 32 | | where
[INFO] [stdout] 33 | |     T: Variant + Debug,
[INFO] [stdout] 34 | |     C: Color + Debug,
[INFO] [stdout]    | |_____________________- associated function in this implementation
[INFO] [stdout] 35 |   {
[INFO] [stdout] 36 |       fn new(variant: T, color: C) -> Self {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `VechileAlternative` is never constructed
[INFO] [stdout]   --> src/bin/generic-structure.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct VechileAlternative<T, C>
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/bin/generic-structure.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | / impl<T, C> Vechile<T, C>
[INFO] [stdout] 32 | | where
[INFO] [stdout] 33 | |     T: Variant + Debug,
[INFO] [stdout] 34 | |     C: Color + Debug,
[INFO] [stdout]    | |_____________________- associated function in this implementation
[INFO] [stdout] 35 |   {
[INFO] [stdout] 36 |       fn new(variant: T, color: C) -> Self {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/bin/generic-function.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Dress {
[INFO] [stdout]   |        ----- field in this struct
[INFO] [stdout] 6 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/bin/channel.rs:20:19
[INFO] [stdout]    |
[INFO] [stdout] 17 |       main_sender: Sender<MainThreadMsg>,
[INFO] [stdout]    |       ---------------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 18 |       child_receiver: Receiver<ChildThreadMsg>,
[INFO] [stdout]    |       ---------------------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 19 |   ) -> JoinHandle<()> {
[INFO] [stdout] 20 |       thread::spawn(move || loop {
[INFO] [stdout]    |  ___________________^
[INFO] [stdout] 21 | |         match child_receiver.recv() {
[INFO] [stdout] 22 | |             Ok(process) => match process {
[INFO] [stdout] 23 | |                 ChildThreadMsg::ProcessSum(a, b) => {
[INFO] [stdout] ...  |
[INFO] [stdout] 46 | |         }
[INFO] [stdout] 47 | |     })
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout]    = note: requested on the command line with `-D tail-expr-drop-order`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `learn` (bin "channel" test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/bin/match-guard.rs:51:22
[INFO] [stdout]    |
[INFO] [stdout] 51 |                 age: s @ 100..=200, ..
[INFO] [stdout]    |                      ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/bin/match-guard.rs:61:15
[INFO] [stdout]    |
[INFO] [stdout] 61 |         Score(s @ 10) => println!("score is 10"),
[INFO] [stdout]    |               ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/match-guard.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |         n @ 5 | n @ 10 => println!("Number is 5 / 10"),
[INFO] [stdout]    |         ^       ^
[INFO] [stdout]    |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]    |
[INFO] [stdout] 66 |         _n @ 5 | _n @ 10 => println!("Number is 5 / 10"),
[INFO] [stdout]    |         ~~       ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/match-guard.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |         n @ 100..=200 => println!("Number is between 100 to 200"),
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/bin/generic-function.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Dress {
[INFO] [stdout]   |        ----- field in this struct
[INFO] [stdout] 6 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/thread.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     thread_one.join();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let _ = thread_one.join();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/bin/advanced-match.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |             Product { name, ..} => {
[INFO] [stdout]    |             ------------------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 51 |             _ => ()
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/bin/advanced-match.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |             Product { name, ..} => {
[INFO] [stdout]    |             ------------------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 51 |             _ => ()
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Flat` is never constructed
[INFO] [stdout]  --> src/bin/advanced-match.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Discount {
[INFO] [stdout]   |      -------- variant in this enum
[INFO] [stdout] 2 |     Offer(i32),
[INFO] [stdout] 3 |     Flat(i32)
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Flat` is never constructed
[INFO] [stdout]  --> src/bin/advanced-match.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Discount {
[INFO] [stdout]   |      -------- variant in this enum
[INFO] [stdout] 2 |     Offer(i32),
[INFO] [stdout] 3 |     Flat(i32)
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3c909c46f36a67e3786cdbe927e70710fcc3071308d0838c35c761b5e164a866", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c909c46f36a67e3786cdbe927e70710fcc3071308d0838c35c761b5e164a866", kill_on_drop: false }`
[INFO] [stdout] 3c909c46f36a67e3786cdbe927e70710fcc3071308d0838c35c761b5e164a866