[INFO] cloning repository https://github.com/w060530/finallyusartscreen_tjc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/w060530/finallyusartscreen_tjc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fw060530%2Ffinallyusartscreen_tjc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fw060530%2Ffinallyusartscreen_tjc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6f132c6651a0c3b66c14b346fe68bb7d5058bf55
[INFO] checking w060530/finallyusartscreen_tjc against 3154cc1a3e6424e44f438a95007d043ed5ceaaf6 for pr-133502-30
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fw060530%2Ffinallyusartscreen_tjc" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
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[INFO] [stderr] done.
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[INFO] started tweaking git repo https://github.com/w060530/finallyusartscreen_tjc
[INFO] finished tweaking git repo https://github.com/w060530/finallyusartscreen_tjc
[INFO] tweaked toml for git repo https://github.com/w060530/finallyusartscreen_tjc written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/w060530/finallyusartscreen_tjc on toolchain 3154cc1a3e6424e44f438a95007d043ed5ceaaf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/w060530/finallyusartscreen_tjc 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" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "1497cc38eb61365d0afd739e920d64627441a2948c9656f24268dc91e2767cab", kill_on_drop: false }`
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[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" "1497cc38eb61365d0afd739e920d64627441a2948c9656f24268dc91e2767cab" "/opt/rustwide/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] [stderr]    Compiling unicode-ident v1.0.24
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[INFO] [stderr]     Checking embedded-io v0.7.1
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[INFO] [stderr]     Checking embassy-net-driver v0.2.0
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[INFO] [stderr]    Compiling embassy-executor-macros v0.8.0
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[INFO] [stderr]     Checking embassy-embedded-hal v0.6.0
[INFO] [stderr]     Checking embassy-usb-synopsys-otg v0.3.3
[INFO] [stderr]    Compiling embassy-stm32 v0.6.0
[INFO] [stderr]     Checking usartscreen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `RefreshOne`
[INFO] [stdout]   --> src/protocol.rs:26:21
[INFO] [stdout]    |
[INFO] [stdout] 26 | use crate::screen::{RefreshOne, Screen, UsartHandle};
[INFO] [stdout]    |                     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `UartTx`
[INFO] [stdout]   --> src/main.rs:20:62
[INFO] [stdout]    |
[INFO] [stdout] 20 | use embassy_stm32::usart::{self, Config as UartConfig, Uart, UartTx};
[INFO] [stdout]    |                                                              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `#[panic_handler]` function required, but not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unwinding panics are not supported without std
[INFO] [stdout]   |
[INFO] [stdout]   = help: using nightly cargo, use -Zbuild-std with panic="abort" to avoid unwinding
[INFO] [stdout]   = note: since the core library is usually precompiled with panic="unwind", rebuilding your crate with panic="abort" may not be enough to fix the problem
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RefreshOne`
[INFO] [stdout]   --> src/protocol.rs:26:21
[INFO] [stdout]    |
[INFO] [stdout] 26 | use crate::screen::{RefreshOne, Screen, UsartHandle};
[INFO] [stdout]    |                     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `UartTx`
[INFO] [stdout]   --> src/main.rs:20:62
[INFO] [stdout]    |
[INFO] [stdout] 20 | use embassy_stm32::usart::{self, Config as UartConfig, Uart, UartTx};
[INFO] [stdout]    |                                                              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `scan_result` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:204:9
[INFO] [stdout]     |
[INFO] [stdout] 204 |     let mut scan_result: Option<protocol::ScanResult> = None;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_scan_result` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `scan_result` is never read
[INFO] [stdout]    --> src/main.rs:259:21
[INFO] [stdout]     |
[INFO] [stdout] 259 |                     scan_result = result;
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tx_pc`
[INFO] [stdout]    --> src/protocol.rs:190:5
[INFO] [stdout]     |
[INFO] [stdout] 190 |     tx_pc: &mut UartTx<'_, Async>,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_tx_pc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `scan_result` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:204:9
[INFO] [stdout]     |
[INFO] [stdout] 204 |     let mut scan_result: Option<protocol::ScanResult> = None;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_scan_result` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `scan_result` is never read
[INFO] [stdout]    --> src/main.rs:259:21
[INFO] [stdout]     |
[INFO] [stdout] 259 |                     scan_result = result;
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `usartscreen` (bin "usartscreen") due to 2 previous errors; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused variable: `tx_pc`
[INFO] [stdout]    --> src/protocol.rs:190:5
[INFO] [stdout]     |
[INFO] [stdout] 190 |     tx_pc: &mut UartTx<'_, Async>,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_tx_pc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `update_write_index` is never used
[INFO] [stdout]    --> src/command.rs:112:12
[INFO] [stdout]     |
[INFO] [stdout]  13 | impl RingBuffer {
[INFO] [stdout]     | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 112 |     pub fn update_write_index(&mut self, dma_remaining: usize) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `refresh` is never used
[INFO] [stdout]   --> src/screen.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub trait SerialHandle<const N: usize, const T: usize> {
[INFO] [stdout]    |           ------------ method in this trait
[INFO] [stdout] 37 |     fn refresh(&mut self, objs: &[Object<'_,T>; N]) -> Result<(), ()>;
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `RefreshOne` is never used
[INFO] [stdout]   --> src/screen.rs:42:11
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub trait RefreshOne<const T: usize> {
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `rx` is never read
[INFO] [stdout]   --> src/screen.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub struct UsartHandle<'d> {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 48 |     pub tx: UartTx<'d, Async>,
[INFO] [stdout] 49 |     pub rx: UartRx<'d, Async>,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1497cc38eb61365d0afd739e920d64627441a2948c9656f24268dc91e2767cab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1497cc38eb61365d0afd739e920d64627441a2948c9656f24268dc91e2767cab", kill_on_drop: false }`
[INFO] [stdout] 1497cc38eb61365d0afd739e920d64627441a2948c9656f24268dc91e2767cab
