[INFO] cloning repository https://github.com/coatsd/rust_espresso_maker
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/coatsd/rust_espresso_maker" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcoatsd%2Frust_espresso_maker", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcoatsd%2Frust_espresso_maker'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 58196fff5e8fbbf0d45887df25682609cef8ef2a
[INFO] testing coatsd/rust_espresso_maker against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcoatsd%2Frust_espresso_maker" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/coatsd/rust_espresso_maker on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/coatsd/rust_espresso_maker
[INFO] finished tweaking git repo https://github.com/coatsd/rust_espresso_maker
[INFO] tweaked toml for git repo https://github.com/coatsd/rust_espresso_maker written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/coatsd/rust_espresso_maker already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 05202a89006bdcea4d3bdfa0cf0c8f527a6bcc8dc3660c11d5ac6655e655f609
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "05202a89006bdcea4d3bdfa0cf0c8f527a6bcc8dc3660c11d5ac6655e655f609", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "05202a89006bdcea4d3bdfa0cf0c8f527a6bcc8dc3660c11d5ac6655e655f609", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05202a89006bdcea4d3bdfa0cf0c8f527a6bcc8dc3660c11d5ac6655e655f609", kill_on_drop: false }`
[INFO] [stdout] 05202a89006bdcea4d3bdfa0cf0c8f527a6bcc8dc3660c11d5ac6655e655f609
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f848d6ced59945854274b6f06c10b4ce10e2bc305c2b50ed0e463cd1919a7ef7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f848d6ced59945854274b6f06c10b4ce10e2bc305c2b50ed0e463cd1919a7ef7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling espresso_maker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `thread`, `time`
[INFO] [stdout]  --> src/message_based.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{time, thread};
[INFO] [stdout]   |           ^^^^  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `S`
[INFO] [stdout]  --> src/message_based.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | type S<T> = mpsc::Sender<T>;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `R`
[INFO] [stdout]   --> src/message_based.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | type R<T> = mpsc::Receiver<T>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/message_based.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn new(s: Size) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BEANAMOUNT`
[INFO] [stdout]  --> src/machine_components.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | const BEANAMOUNT: f32 = 2.0;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `WATERAMOUNT`
[INFO] [stdout]  --> src/machine_components.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | const WATERAMOUNT: f32 = 2.0;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `MILKAMOUNT`
[INFO] [stdout]   --> src/machine_components.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | const MILKAMOUNT: f32 = 10.0;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CAPACITY`
[INFO] [stdout]   --> src/machine_components.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | const CAPACITY: f32 = 64.0;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `S`
[INFO] [stdout]   --> src/machine_components.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | type S<T> = mpsc::Sender<T>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `R`
[INFO] [stdout]   --> src/machine_components.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | type R<T> = mpsc::Receiver<T>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Espresso`
[INFO] [stdout]   --> src/machine_components.rs:18:2
[INFO] [stdout]    |
[INFO] [stdout] 18 |     Espresso,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Milk`
[INFO] [stdout]   --> src/machine_components.rs:19:2
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Milk,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Small`
[INFO] [stdout]   --> src/machine_components.rs:32:2
[INFO] [stdout]    |
[INFO] [stdout] 32 |     Small,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Medium`
[INFO] [stdout]   --> src/machine_components.rs:33:2
[INFO] [stdout]    |
[INFO] [stdout] 33 |     Medium,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Large`
[INFO] [stdout]   --> src/machine_components.rs:34:2
[INFO] [stdout]    |
[INFO] [stdout] 34 |     Large,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `CoffeeHopper`
[INFO] [stdout]   --> src/machine_components.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub struct CoffeeHopper;
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ping`
[INFO] [stdout]   --> src/machine_components.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn ping(timeout: u64) -> Result<(), &'static str> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check_hopper`
[INFO] [stdout]   --> src/machine_components.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn check_hopper(s: Size) -> Result<(), &'static str> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `grind_beans`
[INFO] [stdout]   --> src/machine_components.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn grind_beans(s: Size, timeout: u64) -> Result<(), &'static str> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `WaterTank`
[INFO] [stdout]   --> src/machine_components.rs:83:8
[INFO] [stdout]    |
[INFO] [stdout] 83 | struct WaterTank;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ping`
[INFO] [stdout]   --> src/machine_components.rs:85:5
[INFO] [stdout]    |
[INFO] [stdout] 85 |     fn ping(timeout: u64) -> Result<(), &'static str> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check_tank`
[INFO] [stdout]   --> src/machine_components.rs:94:5
[INFO] [stdout]    |
[INFO] [stdout] 94 |     fn check_tank(s: Size) -> Result<(), &'static str> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dispense`
[INFO] [stdout]    --> src/machine_components.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |     pub fn dispense(s: Size, timeout: u64) -> Result<(), &'static str> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `EspressoPress`
[INFO] [stdout]    --> src/machine_components.rs:118:12
[INFO] [stdout]     |
[INFO] [stdout] 118 | pub struct EspressoPress;
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ping`
[INFO] [stdout]    --> src/machine_components.rs:120:5
[INFO] [stdout]     |
[INFO] [stdout] 120 |     fn ping(timeout: u64) -> Result<(), &'static str> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `press`
[INFO] [stdout]    --> src/machine_components.rs:129:9
[INFO] [stdout]     |
[INFO] [stdout] 129 |     pub fn press(timeout: u64) -> Result<Ingredient, &'static str> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `MilkTank`
[INFO] [stdout]    --> src/machine_components.rs:138:12
[INFO] [stdout]     |
[INFO] [stdout] 138 | pub struct MilkTank;
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ping`
[INFO] [stdout]    --> src/machine_components.rs:140:5
[INFO] [stdout]     |
[INFO] [stdout] 140 |     fn ping(timeout: u64) -> Result<(), &'static str> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check_tank`
[INFO] [stdout]    --> src/machine_components.rs:149:5
[INFO] [stdout]     |
[INFO] [stdout] 149 |     fn check_tank(s: Size) -> Result<(), &'static str> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dispense`
[INFO] [stdout]    --> src/machine_components.rs:162:9
[INFO] [stdout]     |
[INFO] [stdout] 162 |     pub fn dispense(s: Size, timeout: u64) -> Result<(), &'static str> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Frother`
[INFO] [stdout]    --> src/machine_components.rs:173:12
[INFO] [stdout]     |
[INFO] [stdout] 173 | pub struct Frother;
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ping`
[INFO] [stdout]    --> src/machine_components.rs:175:5
[INFO] [stdout]     |
[INFO] [stdout] 175 |     fn ping(timeout: u64) -> Result<(), &'static str> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `froth`
[INFO] [stdout]    --> src/machine_components.rs:184:9
[INFO] [stdout]     |
[INFO] [stdout] 184 |     pub fn froth(timeout: u64) -> Result<Ingredient, &'static str> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 33 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.77s
[INFO] running `Command { std: "docker" "inspect" "f848d6ced59945854274b6f06c10b4ce10e2bc305c2b50ed0e463cd1919a7ef7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f848d6ced59945854274b6f06c10b4ce10e2bc305c2b50ed0e463cd1919a7ef7", kill_on_drop: false }`
[INFO] [stdout] f848d6ced59945854274b6f06c10b4ce10e2bc305c2b50ed0e463cd1919a7ef7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da3692f8666cf758b2bf3e7fca27b43cfb824613c946419a5eb5941f4c2e2a92
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "da3692f8666cf758b2bf3e7fca27b43cfb824613c946419a5eb5941f4c2e2a92", kill_on_drop: false }`
[INFO] [stderr]    Compiling espresso_maker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `thread`, `time`
[INFO] [stdout]  --> src/message_based.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{time, thread};
[INFO] [stdout]   |           ^^^^  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `S`
[INFO] [stdout]  --> src/message_based.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | type S<T> = mpsc::Sender<T>;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `R`
[INFO] [stdout]   --> src/message_based.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | type R<T> = mpsc::Receiver<T>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/message_based.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn new(s: Size) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BEANAMOUNT`
[INFO] [stdout]  --> src/machine_components.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | const BEANAMOUNT: f32 = 2.0;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `WATERAMOUNT`
[INFO] [stdout]  --> src/machine_components.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | const WATERAMOUNT: f32 = 2.0;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `MILKAMOUNT`
[INFO] [stdout]   --> src/machine_components.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | const MILKAMOUNT: f32 = 10.0;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CAPACITY`
[INFO] [stdout]   --> src/machine_components.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | const CAPACITY: f32 = 64.0;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `S`
[INFO] [stdout]   --> src/machine_components.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | type S<T> = mpsc::Sender<T>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `R`
[INFO] [stdout]   --> src/machine_components.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | type R<T> = mpsc::Receiver<T>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Espresso`
[INFO] [stdout]   --> src/machine_components.rs:18:2
[INFO] [stdout]    |
[INFO] [stdout] 18 |     Espresso,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Milk`
[INFO] [stdout]   --> src/machine_components.rs:19:2
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Milk,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Small`
[INFO] [stdout]   --> src/machine_components.rs:32:2
[INFO] [stdout]    |
[INFO] [stdout] 32 |     Small,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Medium`
[INFO] [stdout]   --> src/machine_components.rs:33:2
[INFO] [stdout]    |
[INFO] [stdout] 33 |     Medium,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Large`
[INFO] [stdout]   --> src/machine_components.rs:34:2
[INFO] [stdout]    |
[INFO] [stdout] 34 |     Large,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `CoffeeHopper`
[INFO] [stdout]   --> src/machine_components.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub struct CoffeeHopper;
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ping`
[INFO] [stdout]   --> src/machine_components.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn ping(timeout: u64) -> Result<(), &'static str> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check_hopper`
[INFO] [stdout]   --> src/machine_components.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn check_hopper(s: Size) -> Result<(), &'static str> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `grind_beans`
[INFO] [stdout]   --> src/machine_components.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn grind_beans(s: Size, timeout: u64) -> Result<(), &'static str> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `WaterTank`
[INFO] [stdout]   --> src/machine_components.rs:83:8
[INFO] [stdout]    |
[INFO] [stdout] 83 | struct WaterTank;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ping`
[INFO] [stdout]   --> src/machine_components.rs:85:5
[INFO] [stdout]    |
[INFO] [stdout] 85 |     fn ping(timeout: u64) -> Result<(), &'static str> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check_tank`
[INFO] [stdout]   --> src/machine_components.rs:94:5
[INFO] [stdout]    |
[INFO] [stdout] 94 |     fn check_tank(s: Size) -> Result<(), &'static str> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dispense`
[INFO] [stdout]    --> src/machine_components.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |     pub fn dispense(s: Size, timeout: u64) -> Result<(), &'static str> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `EspressoPress`
[INFO] [stdout]    --> src/machine_components.rs:118:12
[INFO] [stdout]     |
[INFO] [stdout] 118 | pub struct EspressoPress;
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ping`
[INFO] [stdout]    --> src/machine_components.rs:120:5
[INFO] [stdout]     |
[INFO] [stdout] 120 |     fn ping(timeout: u64) -> Result<(), &'static str> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `press`
[INFO] [stdout]    --> src/machine_components.rs:129:9
[INFO] [stdout]     |
[INFO] [stdout] 129 |     pub fn press(timeout: u64) -> Result<Ingredient, &'static str> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `MilkTank`
[INFO] [stdout]    --> src/machine_components.rs:138:12
[INFO] [stdout]     |
[INFO] [stdout] 138 | pub struct MilkTank;
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ping`
[INFO] [stdout]    --> src/machine_components.rs:140:5
[INFO] [stdout]     |
[INFO] [stdout] 140 |     fn ping(timeout: u64) -> Result<(), &'static str> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check_tank`
[INFO] [stdout]    --> src/machine_components.rs:149:5
[INFO] [stdout]     |
[INFO] [stdout] 149 |     fn check_tank(s: Size) -> Result<(), &'static str> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dispense`
[INFO] [stdout]    --> src/machine_components.rs:162:9
[INFO] [stdout]     |
[INFO] [stdout] 162 |     pub fn dispense(s: Size, timeout: u64) -> Result<(), &'static str> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Frother`
[INFO] [stdout]    --> src/machine_components.rs:173:12
[INFO] [stdout]     |
[INFO] [stdout] 173 | pub struct Frother;
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ping`
[INFO] [stdout]    --> src/machine_components.rs:175:5
[INFO] [stdout]     |
[INFO] [stdout] 175 |     fn ping(timeout: u64) -> Result<(), &'static str> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `froth`
[INFO] [stdout]    --> src/machine_components.rs:184:9
[INFO] [stdout]     |
[INFO] [stdout] 184 |     pub fn froth(timeout: u64) -> Result<Ingredient, &'static str> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 33 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `thread`, `time`
[INFO] [stdout]  --> src/message_based.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{time, thread};
[INFO] [stdout]   |           ^^^^  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `S`
[INFO] [stdout]  --> src/message_based.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | type S<T> = mpsc::Sender<T>;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `R`
[INFO] [stdout]   --> src/message_based.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | type R<T> = mpsc::Receiver<T>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/message_based.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn new(s: Size) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BEANAMOUNT`
[INFO] [stdout]  --> src/machine_components.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | const BEANAMOUNT: f32 = 2.0;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `WATERAMOUNT`
[INFO] [stdout]  --> src/machine_components.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | const WATERAMOUNT: f32 = 2.0;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `MILKAMOUNT`
[INFO] [stdout]   --> src/machine_components.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | const MILKAMOUNT: f32 = 10.0;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CAPACITY`
[INFO] [stdout]   --> src/machine_components.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | const CAPACITY: f32 = 64.0;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `S`
[INFO] [stdout]   --> src/machine_components.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | type S<T> = mpsc::Sender<T>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `R`
[INFO] [stdout]   --> src/machine_components.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | type R<T> = mpsc::Receiver<T>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Espresso`
[INFO] [stdout]   --> src/machine_components.rs:18:2
[INFO] [stdout]    |
[INFO] [stdout] 18 |     Espresso,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Milk`
[INFO] [stdout]   --> src/machine_components.rs:19:2
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Milk,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Small`
[INFO] [stdout]   --> src/machine_components.rs:32:2
[INFO] [stdout]    |
[INFO] [stdout] 32 |     Small,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Medium`
[INFO] [stdout]   --> src/machine_components.rs:33:2
[INFO] [stdout]    |
[INFO] [stdout] 33 |     Medium,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Large`
[INFO] [stdout]   --> src/machine_components.rs:34:2
[INFO] [stdout]    |
[INFO] [stdout] 34 |     Large,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `CoffeeHopper`
[INFO] [stdout]   --> src/machine_components.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub struct CoffeeHopper;
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ping`
[INFO] [stdout]   --> src/machine_components.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn ping(timeout: u64) -> Result<(), &'static str> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check_hopper`
[INFO] [stdout]   --> src/machine_components.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn check_hopper(s: Size) -> Result<(), &'static str> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `grind_beans`
[INFO] [stdout]   --> src/machine_components.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn grind_beans(s: Size, timeout: u64) -> Result<(), &'static str> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `WaterTank`
[INFO] [stdout]   --> src/machine_components.rs:83:8
[INFO] [stdout]    |
[INFO] [stdout] 83 | struct WaterTank;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ping`
[INFO] [stdout]   --> src/machine_components.rs:85:5
[INFO] [stdout]    |
[INFO] [stdout] 85 |     fn ping(timeout: u64) -> Result<(), &'static str> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check_tank`
[INFO] [stdout]   --> src/machine_components.rs:94:5
[INFO] [stdout]    |
[INFO] [stdout] 94 |     fn check_tank(s: Size) -> Result<(), &'static str> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dispense`
[INFO] [stdout]    --> src/machine_components.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |     pub fn dispense(s: Size, timeout: u64) -> Result<(), &'static str> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `EspressoPress`
[INFO] [stdout]    --> src/machine_components.rs:118:12
[INFO] [stdout]     |
[INFO] [stdout] 118 | pub struct EspressoPress;
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ping`
[INFO] [stdout]    --> src/machine_components.rs:120:5
[INFO] [stdout]     |
[INFO] [stdout] 120 |     fn ping(timeout: u64) -> Result<(), &'static str> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `press`
[INFO] [stdout]    --> src/machine_components.rs:129:9
[INFO] [stdout]     |
[INFO] [stdout] 129 |     pub fn press(timeout: u64) -> Result<Ingredient, &'static str> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `MilkTank`
[INFO] [stdout]    --> src/machine_components.rs:138:12
[INFO] [stdout]     |
[INFO] [stdout] 138 | pub struct MilkTank;
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ping`
[INFO] [stdout]    --> src/machine_components.rs:140:5
[INFO] [stdout]     |
[INFO] [stdout] 140 |     fn ping(timeout: u64) -> Result<(), &'static str> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check_tank`
[INFO] [stdout]    --> src/machine_components.rs:149:5
[INFO] [stdout]     |
[INFO] [stdout] 149 |     fn check_tank(s: Size) -> Result<(), &'static str> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dispense`
[INFO] [stdout]    --> src/machine_components.rs:162:9
[INFO] [stdout]     |
[INFO] [stdout] 162 |     pub fn dispense(s: Size, timeout: u64) -> Result<(), &'static str> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Frother`
[INFO] [stdout]    --> src/machine_components.rs:173:12
[INFO] [stdout]     |
[INFO] [stdout] 173 | pub struct Frother;
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ping`
[INFO] [stdout]    --> src/machine_components.rs:175:5
[INFO] [stdout]     |
[INFO] [stdout] 175 |     fn ping(timeout: u64) -> Result<(), &'static str> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `froth`
[INFO] [stdout]    --> src/machine_components.rs:184:9
[INFO] [stdout]     |
[INFO] [stdout] 184 |     pub fn froth(timeout: u64) -> Result<Ingredient, &'static str> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 33 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `Command { std: "docker" "inspect" "da3692f8666cf758b2bf3e7fca27b43cfb824613c946419a5eb5941f4c2e2a92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da3692f8666cf758b2bf3e7fca27b43cfb824613c946419a5eb5941f4c2e2a92", kill_on_drop: false }`
[INFO] [stdout] da3692f8666cf758b2bf3e7fca27b43cfb824613c946419a5eb5941f4c2e2a92
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 683ceb0b623a38015f53ce28a05bbbea6f308ec2e18cf3fe4db89aca946cc01f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "683ceb0b623a38015f53ce28a05bbbea6f308ec2e18cf3fe4db89aca946cc01f", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused imports: `thread`, `time`
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> src/message_based.rs:1:11
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 1 | use std::{time, thread};
[INFO] [stdout] 
[INFO] [stderr]   |           ^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] running 0 tests
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] warning: type alias is never used: `S`
[INFO] [stdout] 
[INFO] [stderr]  --> src/message_based.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | type S<T> = mpsc::Sender<T>;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `R`
[INFO] [stderr]   --> src/message_based.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | type R<T> = mpsc::Receiver<T>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/message_based.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn new(s: Size) -> Self {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `BEANAMOUNT`
[INFO] [stderr]  --> src/machine_components.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | const BEANAMOUNT: f32 = 2.0;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `WATERAMOUNT`
[INFO] [stderr]  --> src/machine_components.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | const WATERAMOUNT: f32 = 2.0;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `MILKAMOUNT`
[INFO] [stderr]   --> src/machine_components.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | const MILKAMOUNT: f32 = 10.0;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `CAPACITY`
[INFO] [stderr]   --> src/machine_components.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | const CAPACITY: f32 = 64.0;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `S`
[INFO] [stderr]   --> src/machine_components.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | type S<T> = mpsc::Sender<T>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `R`
[INFO] [stderr]   --> src/machine_components.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | type R<T> = mpsc::Receiver<T>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Espresso`
[INFO] [stderr]   --> src/machine_components.rs:18:2
[INFO] [stderr]    |
[INFO] [stderr] 18 |     Espresso,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Milk`
[INFO] [stderr]   --> src/machine_components.rs:19:2
[INFO] [stderr]    |
[INFO] [stderr] 19 |     Milk,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Small`
[INFO] [stderr]   --> src/machine_components.rs:32:2
[INFO] [stderr]    |
[INFO] [stderr] 32 |     Small,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Medium`
[INFO] [stderr]   --> src/machine_components.rs:33:2
[INFO] [stderr]    |
[INFO] [stderr] 33 |     Medium,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Large`
[INFO] [stderr]   --> src/machine_components.rs:34:2
[INFO] [stderr]    |
[INFO] [stderr] 34 |     Large,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `CoffeeHopper`
[INFO] [stderr]   --> src/machine_components.rs:47:12
[INFO] [stderr]    |
[INFO] [stderr] 47 | pub struct CoffeeHopper;
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `ping`
[INFO] [stderr]   --> src/machine_components.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn ping(timeout: u64) -> Result<(), &'static str> {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `check_hopper`
[INFO] [stderr]   --> src/machine_components.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     fn check_hopper(s: Size) -> Result<(), &'static str> {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `grind_beans`
[INFO] [stderr]   --> src/machine_components.rs:72:9
[INFO] [stderr]    |
[INFO] [stderr] 72 |     pub fn grind_beans(s: Size, timeout: u64) -> Result<(), &'static str> {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `WaterTank`
[INFO] [stderr]   --> src/machine_components.rs:83:8
[INFO] [stderr]    |
[INFO] [stderr] 83 | struct WaterTank;
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `ping`
[INFO] [stderr]   --> src/machine_components.rs:85:5
[INFO] [stderr]    |
[INFO] [stderr] 85 |     fn ping(timeout: u64) -> Result<(), &'static str> {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `check_tank`
[INFO] [stderr]   --> src/machine_components.rs:94:5
[INFO] [stderr]    |
[INFO] [stderr] 94 |     fn check_tank(s: Size) -> Result<(), &'static str> {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `dispense`
[INFO] [stderr]    --> src/machine_components.rs:107:9
[INFO] [stderr]     |
[INFO] [stderr] 107 |     pub fn dispense(s: Size, timeout: u64) -> Result<(), &'static str> {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `EspressoPress`
[INFO] [stderr]    --> src/machine_components.rs:118:12
[INFO] [stderr]     |
[INFO] [stderr] 118 | pub struct EspressoPress;
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `ping`
[INFO] [stderr]    --> src/machine_components.rs:120:5
[INFO] [stderr]     |
[INFO] [stderr] 120 |     fn ping(timeout: u64) -> Result<(), &'static str> {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `press`
[INFO] [stderr]    --> src/machine_components.rs:129:9
[INFO] [stderr]     |
[INFO] [stderr] 129 |     pub fn press(timeout: u64) -> Result<Ingredient, &'static str> {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `MilkTank`
[INFO] [stderr]    --> src/machine_components.rs:138:12
[INFO] [stderr]     |
[INFO] [stderr] 138 | pub struct MilkTank;
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `ping`
[INFO] [stderr]    --> src/machine_components.rs:140:5
[INFO] [stderr]     |
[INFO] [stderr] 140 |     fn ping(timeout: u64) -> Result<(), &'static str> {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `check_tank`
[INFO] [stderr]    --> src/machine_components.rs:149:5
[INFO] [stderr]     |
[INFO] [stderr] 149 |     fn check_tank(s: Size) -> Result<(), &'static str> {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `dispense`
[INFO] [stderr]    --> src/machine_components.rs:162:9
[INFO] [stderr]     |
[INFO] [stderr] 162 |     pub fn dispense(s: Size, timeout: u64) -> Result<(), &'static str> {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Frother`
[INFO] [stderr]    --> src/machine_components.rs:173:12
[INFO] [stderr]     |
[INFO] [stderr] 173 | pub struct Frother;
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `ping`
[INFO] [stderr]    --> src/machine_components.rs:175:5
[INFO] [stderr]     |
[INFO] [stderr] 175 |     fn ping(timeout: u64) -> Result<(), &'static str> {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `froth`
[INFO] [stderr]    --> src/machine_components.rs:184:9
[INFO] [stderr]     |
[INFO] [stderr] 184 |     pub fn froth(timeout: u64) -> Result<Ingredient, &'static str> {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `espresso_maker` (lib) generated 33 warnings
[INFO] [stderr] warning: `espresso_maker` (lib test) generated 33 warnings (33 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/espresso_maker-78d1ab13e06d1025)
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/espresso_maker-2abcd26efd6e73fb)
[INFO] [stderr]    Doc-tests espresso_maker
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "683ceb0b623a38015f53ce28a05bbbea6f308ec2e18cf3fe4db89aca946cc01f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "683ceb0b623a38015f53ce28a05bbbea6f308ec2e18cf3fe4db89aca946cc01f", kill_on_drop: false }`
[INFO] [stdout] 683ceb0b623a38015f53ce28a05bbbea6f308ec2e18cf3fe4db89aca946cc01f