[INFO] cloning repository https://github.com/LostQuasar/rs-meter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LostQuasar/rs-meter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLostQuasar%2Frs-meter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLostQuasar%2Frs-meter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cad28670eb606a7c5cbd4ef26dbc6b75f74ee462
[INFO] checking LostQuasar/rs-meter against try#8ac0915e346f9a2e49ca3951b642c55bd7d1eaab for pr-158447
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLostQuasar%2Frs-meter" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/LostQuasar/rs-meter
[INFO] finished tweaking git repo https://github.com/LostQuasar/rs-meter
[INFO] tweaked toml for git repo https://github.com/LostQuasar/rs-meter written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/LostQuasar/rs-meter on toolchain 8ac0915e346f9a2e49ca3951b642c55bd7d1eaab
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8ac0915e346f9a2e49ca3951b642c55bd7d1eaab" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/LostQuasar/rs-meter 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" "+8ac0915e346f9a2e49ca3951b642c55bd7d1eaab" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] cc35ee57344bfaf2fa4db649c1041c464dfb353c16b69f52f66b0cc7ee848843
[INFO] running `Command { std: "docker" "start" "cc35ee57344bfaf2fa4db649c1041c464dfb353c16b69f52f66b0cc7ee848843", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "cc35ee57344bfaf2fa4db649c1041c464dfb353c16b69f52f66b0cc7ee848843" "/opt/rustwide/cargo-home/bin/cargo" "+8ac0915e346f9a2e49ca3951b642c55bd7d1eaab" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc35ee57344bfaf2fa4db649c1041c464dfb353c16b69f52f66b0cc7ee848843", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "cc35ee57344bfaf2fa4db649c1041c464dfb353c16b69f52f66b0cc7ee848843" "/opt/rustwide/cargo-home/bin/cargo" "+8ac0915e346f9a2e49ca3951b642c55bd7d1eaab" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: field `port` is never read
[INFO] [stdout]   --> src/main.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | struct MyApp {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] 43 |     port: Option<Box<dyn SerialPort + 'static>>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `setup_port` is never used
[INFO] [stdout]   --> src/main.rs:71:4
[INFO] [stdout]    |
[INFO] [stdout] 71 | fn setup_port(path: &str) -> Result<Box<dyn SerialPort + 'static>, serialport::Error> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_port` is never used
[INFO] [stdout]   --> src/main.rs:80:4
[INFO] [stdout]    |
[INFO] [stdout] 80 | fn read_port(mut port: Box<dyn SerialPort + 'static>) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_bit_at` is never used
[INFO] [stdout]  --> src/meter.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub(crate) fn get_bit_at(input: u8, n: u8) -> bool {
[INFO] [stdout]   |               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Mode` is never used
[INFO] [stdout]   --> src/meter.rs:11:17
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub(crate) enum Mode {
[INFO] [stdout]    |                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SevenSegment` is never constructed
[INFO] [stdout]   --> src/meter.rs:34:19
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub(crate) struct SevenSegment {
[INFO] [stdout]    |                   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_string` is never used
[INFO] [stdout]   --> src/meter.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 38 | impl SevenSegment {
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] 39 |     pub fn to_string(self) -> char {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MeterState` is never constructed
[INFO] [stdout]   --> src/meter.rs:70:19
[INFO] [stdout]    |
[INFO] [stdout] 70 | pub(crate) struct MeterState {
[INFO] [stdout]    |                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/meter.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 76 | impl MeterState {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 77 |     pub fn new(data: [u8; 8]) -> Result<Self, Box<dyn Error>> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `port` is never read
[INFO] [stdout]   --> src/main.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | struct MyApp {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] 43 |     port: Option<Box<dyn SerialPort + 'static>>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `setup_port` is never used
[INFO] [stdout]   --> src/main.rs:71:4
[INFO] [stdout]    |
[INFO] [stdout] 71 | fn setup_port(path: &str) -> Result<Box<dyn SerialPort + 'static>, serialport::Error> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_port` is never used
[INFO] [stdout]   --> src/main.rs:80:4
[INFO] [stdout]    |
[INFO] [stdout] 80 | fn read_port(mut port: Box<dyn SerialPort + 'static>) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_bit_at` is never used
[INFO] [stdout]  --> src/meter.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub(crate) fn get_bit_at(input: u8, n: u8) -> bool {
[INFO] [stdout]   |               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Mode` is never used
[INFO] [stdout]   --> src/meter.rs:11:17
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub(crate) enum Mode {
[INFO] [stdout]    |                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SevenSegment` is never constructed
[INFO] [stdout]   --> src/meter.rs:34:19
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub(crate) struct SevenSegment {
[INFO] [stdout]    |                   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_string` is never used
[INFO] [stdout]   --> src/meter.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 38 | impl SevenSegment {
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] 39 |     pub fn to_string(self) -> char {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MeterState` is never constructed
[INFO] [stdout]   --> src/meter.rs:70:19
[INFO] [stdout]    |
[INFO] [stdout] 70 | pub(crate) struct MeterState {
[INFO] [stdout]    |                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/meter.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 76 | impl MeterState {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 77 |     pub fn new(data: [u8; 8]) -> Result<Self, Box<dyn Error>> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 59.36s
[INFO] running `Command { std: "docker" "inspect" "cc35ee57344bfaf2fa4db649c1041c464dfb353c16b69f52f66b0cc7ee848843", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc35ee57344bfaf2fa4db649c1041c464dfb353c16b69f52f66b0cc7ee848843", kill_on_drop: false }`
[INFO] [stdout] cc35ee57344bfaf2fa4db649c1041c464dfb353c16b69f52f66b0cc7ee848843
