[INFO] cloning repository https://github.com/HarmonEpsilon/Restaurant-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/HarmonEpsilon/Restaurant-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHarmonEpsilon%2FRestaurant-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHarmonEpsilon%2FRestaurant-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 06a49a1d25b66a12a7627d7796844a50a250b916 [INFO] checking HarmonEpsilon/Restaurant-rs/06a49a1d25b66a12a7627d7796844a50a250b916 against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHarmonEpsilon%2FRestaurant-rs" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/HarmonEpsilon/Restaurant-rs on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/HarmonEpsilon/Restaurant-rs [INFO] finished tweaking git repo https://github.com/HarmonEpsilon/Restaurant-rs [INFO] tweaked toml for git repo https://github.com/HarmonEpsilon/Restaurant-rs written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/HarmonEpsilon/Restaurant-rs 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" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded backtrace v0.3.0 [INFO] [stderr] Downloaded error-chain v0.7.2 [INFO] [stderr] Downloaded gcc v0.3.43 [INFO] [stderr] Downloaded backtrace-sys v0.1.10 [INFO] [stderr] Downloaded input-stream v0.2.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9f6f6bfa71fedf12f8de4143c59a61f959a992df0118202bfeae6976dd710e57 [INFO] running `Command { std: "docker" "start" "-a" "9f6f6bfa71fedf12f8de4143c59a61f959a992df0118202bfeae6976dd710e57", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9f6f6bfa71fedf12f8de4143c59a61f959a992df0118202bfeae6976dd710e57", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9f6f6bfa71fedf12f8de4143c59a61f959a992df0118202bfeae6976dd710e57", kill_on_drop: false }` [INFO] [stdout] 9f6f6bfa71fedf12f8de4143c59a61f959a992df0118202bfeae6976dd710e57 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0b2228be28b336076f22e82fe33c7b3153be30346a78b81f16a3e33600f3729d [INFO] running `Command { std: "docker" "start" "-a" "0b2228be28b336076f22e82fe33c7b3153be30346a78b81f16a3e33600f3729d", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Compiling winapi-build v0.1.1 [INFO] [stderr] Compiling gcc v0.3.43 [INFO] [stderr] Checking winapi v0.2.8 [INFO] [stderr] Compiling backtrace v0.3.0 [INFO] [stderr] Checking libc v0.2.20 [INFO] [stderr] Checking cfg-if v0.1.0 [INFO] [stderr] Checking rustc-demangle v0.1.4 [INFO] [stderr] Compiling dbghelp-sys v0.2.0 [INFO] [stderr] Compiling kernel32-sys v0.2.2 [INFO] [stderr] Compiling backtrace-sys v0.1.10 [INFO] [stderr] Checking error-chain v0.7.2 [INFO] [stderr] Checking input-stream v0.2.0 [INFO] [stderr] Checking Restaurant-rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::io` [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::io; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io` [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::io; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `dlist` [INFO] [stdout] --> src/party.rs:2:9 [INFO] [stdout] | [INFO] [stdout] 2 | use dlist; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `dlist` [INFO] [stdout] --> src/table.rs:3:9 [INFO] [stdout] | [INFO] [stdout] 3 | use dlist; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io` [INFO] [stdout] --> src/restaurant.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | use std::io; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `dlist` [INFO] [stdout] --> src/party.rs:2:9 [INFO] [stdout] | [INFO] [stdout] 2 | use dlist; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `self::input_stream::InputStream` [INFO] [stdout] --> src/restaurant.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | use self::input_stream::InputStream; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `dlist` [INFO] [stdout] --> src/table.rs:3:9 [INFO] [stdout] | [INFO] [stdout] 3 | use dlist; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io` [INFO] [stdout] --> src/restaurant.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | use std::io; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0214]: parenthesized type parameters may only be used with a `Fn` trait [INFO] [stdout] --> src/restaurant.rs:12:34 [INFO] [stdout] | [INFO] [stdout] 12 | available: Dlist::new(), [INFO] [stdout] | ^^^^^ only `Fn` traits may use parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `self::input_stream::InputStream` [INFO] [stdout] --> src/restaurant.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | use self::input_stream::InputStream; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0214]: parenthesized type parameters may only be used with a `Fn` trait [INFO] [stdout] --> src/restaurant.rs:12:34 [INFO] [stdout] | [INFO] [stdout] 12 | available: Dlist
::new(), [INFO] [stdout] | ^^^^^ only `Fn` traits may use parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0214]: parenthesized type parameters may only be used with a `Fn` trait [INFO] [stdout] --> src/restaurant.rs:13:33 [INFO] [stdout] | [INFO] [stdout] 13 | occupied: Dlist
::new(), [INFO] [stdout] | ^^^^^ only `Fn` traits may use parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0214]: parenthesized type parameters may only be used with a `Fn` trait [INFO] [stdout] --> src/restaurant.rs:13:33 [INFO] [stdout] | [INFO] [stdout] 13 | occupied: Dlist
::new(), [INFO] [stdout] | ^^^^^ only `Fn` traits may use parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0214]: parenthesized type parameters may only be used with a `Fn` trait [INFO] [stdout] --> src/restaurant.rs:14:32 [INFO] [stdout] | [INFO] [stdout] 14 | waiting: Dlist::new(), [INFO] [stdout] | ^^^^^ only `Fn` traits may use parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0214]: parenthesized type parameters may only be used with a `Fn` trait [INFO] [stdout] --> src/restaurant.rs:14:32 [INFO] [stdout] | [INFO] [stdout] 14 | waiting: Dlist::new(), [INFO] [stdout] | ^^^^^ only `Fn` traits may use parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0223]: ambiguous associated type [INFO] [stdout] --> src/restaurant.rs:12:20 [INFO] [stdout] | [INFO] [stdout] 12 | available: Dlist
::new(), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: if there were a trait named `Example` with associated type `new` implemented for `Dlist
`, you could use the fully-qualified path [INFO] [stdout] | [INFO] [stdout] 12 | available: as Example>::new, [INFO] [stdout] | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0223]: ambiguous associated type [INFO] [stdout] --> src/restaurant.rs:12:20 [INFO] [stdout] | [INFO] [stdout] 12 | available: Dlist
::new(), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: if there were a trait named `Example` with associated type `new` implemented for `Dlist
`, you could use the fully-qualified path [INFO] [stdout] | [INFO] [stdout] 12 | available: as Example>::new, [INFO] [stdout] | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0223]: ambiguous associated type [INFO] [stdout] --> src/restaurant.rs:13:19 [INFO] [stdout] | [INFO] [stdout] 13 | occupied: Dlist
::new(), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: if there were a trait named `Example` with associated type `new` implemented for `Dlist
`, you could use the fully-qualified path [INFO] [stdout] | [INFO] [stdout] 13 | occupied: as Example>::new, [INFO] [stdout] | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0223]: ambiguous associated type [INFO] [stdout] --> src/restaurant.rs:13:19 [INFO] [stdout] | [INFO] [stdout] 13 | occupied: Dlist
::new(), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: if there were a trait named `Example` with associated type `new` implemented for `Dlist
`, you could use the fully-qualified path [INFO] [stdout] | [INFO] [stdout] 13 | occupied: as Example>::new, [INFO] [stdout] | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0223]: ambiguous associated type [INFO] [stdout] --> src/restaurant.rs:14:18 [INFO] [stdout] | [INFO] [stdout] 14 | waiting: Dlist::new(), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: if there were a trait named `Example` with associated type `new` implemented for `Dlist`, you could use the fully-qualified path [INFO] [stdout] | [INFO] [stdout] 14 | waiting: as Example>::new, [INFO] [stdout] | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0223]: ambiguous associated type [INFO] [stdout] --> src/restaurant.rs:14:18 [INFO] [stdout] | [INFO] [stdout] 14 | waiting: Dlist::new(), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: if there were a trait named `Example` with associated type `new` implemented for `Dlist`, you could use the fully-qualified path [INFO] [stdout] | [INFO] [stdout] 14 | waiting: as Example>::new, [INFO] [stdout] | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/table.rs:22:24 [INFO] [stdout] | [INFO] [stdout] 22 | party: self.party.clone().unwrap() [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Option>`, found `Box` [INFO] [stdout] | [INFO] [stdout] = note: expected enum `Option>` [INFO] [stdout] found struct `Box<_>` [INFO] [stdout] help: try wrapping the expression in `Some` [INFO] [stdout] | [INFO] [stdout] 22 | party: Some(self.party.clone().unwrap()) [INFO] [stdout] | +++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/table.rs:22:24 [INFO] [stdout] | [INFO] [stdout] 22 | party: self.party.clone().unwrap() [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Option>`, found `Box` [INFO] [stdout] | [INFO] [stdout] = note: expected enum `Option>` [INFO] [stdout] found struct `Box<_>` [INFO] [stdout] help: try wrapping the expression in `Some` [INFO] [stdout] | [INFO] [stdout] 22 | party: Some(self.party.clone().unwrap()) [INFO] [stdout] | +++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `server_id` [INFO] [stdout] --> src/restaurant.rs:20:21 [INFO] [stdout] | [INFO] [stdout] 20 | let mut server_id: String; [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_server_id` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `name` [INFO] [stdout] --> src/restaurant.rs:21:21 [INFO] [stdout] | [INFO] [stdout] 21 | let mut name: String; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_name` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `reservation` [INFO] [stdout] --> src/restaurant.rs:22:21 [INFO] [stdout] | [INFO] [stdout] 22 | let mut reservation: String; [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_reservation` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `id` [INFO] [stdout] --> src/restaurant.rs:23:21 [INFO] [stdout] | [INFO] [stdout] 23 | let mut id: String; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_id` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `buffer_in` [INFO] [stdout] --> src/restaurant.rs:24:21 [INFO] [stdout] | [INFO] [stdout] 24 | let mut buffer_in: String; [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer_in` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `serving` [INFO] [stdout] --> src/restaurant.rs:27:21 [INFO] [stdout] | [INFO] [stdout] 27 | let mut serving: u32 = 0; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_serving` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `timer` [INFO] [stdout] --> src/restaurant.rs:28:21 [INFO] [stdout] | [INFO] [stdout] 28 | let mut timer: u32 = 0; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_timer` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `seats` [INFO] [stdout] --> src/restaurant.rs:29:21 [INFO] [stdout] | [INFO] [stdout] 29 | let mut seats: u32 = 0; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_seats` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/restaurant.rs:27:17 [INFO] [stdout] | [INFO] [stdout] 27 | let mut serving: u32 = 0; [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: `server_id` [INFO] [stdout] --> src/restaurant.rs:20:21 [INFO] [stdout] | [INFO] [stdout] 20 | let mut server_id: String; [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_server_id` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/restaurant.rs:28:17 [INFO] [stdout] | [INFO] [stdout] 28 | let mut timer: u32 = 0; [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `name` [INFO] [stdout] --> src/restaurant.rs:21:21 [INFO] [stdout] | [INFO] [stdout] 21 | let mut name: String; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_name` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/restaurant.rs:29:17 [INFO] [stdout] | [INFO] [stdout] 29 | let mut seats: u32 = 0; [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `reservation` [INFO] [stdout] --> src/restaurant.rs:22:21 [INFO] [stdout] | [INFO] [stdout] 22 | let mut reservation: String; [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_reservation` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `id` [INFO] [stdout] --> src/restaurant.rs:23:21 [INFO] [stdout] | [INFO] [stdout] 23 | let mut id: String; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_id` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `buffer_in` [INFO] [stdout] --> src/restaurant.rs:24:21 [INFO] [stdout] | [INFO] [stdout] 24 | let mut buffer_in: String; [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer_in` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `serving` [INFO] [stdout] --> src/restaurant.rs:27:21 [INFO] [stdout] | [INFO] [stdout] 27 | let mut serving: u32 = 0; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_serving` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `timer` [INFO] [stdout] --> src/restaurant.rs:28:21 [INFO] [stdout] | [INFO] [stdout] 28 | let mut timer: u32 = 0; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_timer` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `seats` [INFO] [stdout] --> src/restaurant.rs:29:21 [INFO] [stdout] | [INFO] [stdout] 29 | let mut seats: u32 = 0; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_seats` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/restaurant.rs:27:17 [INFO] [stdout] | [INFO] [stdout] 27 | let mut serving: u32 = 0; [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: variable does not need to be mutable [INFO] [stdout] --> src/restaurant.rs:28:17 [INFO] [stdout] | [INFO] [stdout] 28 | let mut timer: u32 = 0; [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/restaurant.rs:29:17 [INFO] [stdout] | [INFO] [stdout] 29 | let mut seats: u32 = 0; [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 7 previous errors; 16 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0214, E0223, E0308. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0214`. [INFO] [stdout] [INFO] [stdout] error: aborting due to 7 previous errors; 16 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0214, E0223, E0308. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0214`. [INFO] [stdout] [INFO] [stderr] error: could not compile `Restaurant-rs` (bin "Restaurant-rs") due to 8 previous errors; 16 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `Restaurant-rs` (bin "Restaurant-rs" test) due to 8 previous errors; 16 warnings emitted [INFO] running `Command { std: "docker" "inspect" "0b2228be28b336076f22e82fe33c7b3153be30346a78b81f16a3e33600f3729d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0b2228be28b336076f22e82fe33c7b3153be30346a78b81f16a3e33600f3729d", kill_on_drop: false }` [INFO] [stdout] 0b2228be28b336076f22e82fe33c7b3153be30346a78b81f16a3e33600f3729d