[INFO] cloning repository https://github.com/Neo-Zhixing/ECE362-Maze [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Neo-Zhixing/ECE362-Maze" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNeo-Zhixing%2FECE362-Maze", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNeo-Zhixing%2FECE362-Maze'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] d2d5819edce1bb890380529152e3fa97bd90fb67 [INFO] checking Neo-Zhixing/ECE362-Maze/d2d5819edce1bb890380529152e3fa97bd90fb67 against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNeo-Zhixing%2FECE362-Maze" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Neo-Zhixing/ECE362-Maze 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] removed /workspace/builds/worker-3-tc1/source/.cargo/config [INFO] started tweaking git repo https://github.com/Neo-Zhixing/ECE362-Maze [INFO] finished tweaking git repo https://github.com/Neo-Zhixing/ECE362-Maze [INFO] tweaked toml for git repo https://github.com/Neo-Zhixing/ECE362-Maze written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/Neo-Zhixing/ECE362-Maze 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] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded as-slice v0.1.0 [INFO] [stderr] Downloaded cortex-m-rt-macros v0.1.6 [INFO] [stderr] Downloaded cortex-m v0.6.1 [INFO] [stderr] Downloaded cortex-m-rt v0.6.10 [INFO] [stderr] Downloaded cortex-m-rtfm-macros v0.5.0 [INFO] [stderr] Downloaded rtfm-core v0.3.0 [INFO] [stderr] Downloaded tinybmp v0.1.0 [INFO] [stderr] Downloaded rtfm-syntax v0.4.0 [INFO] [stderr] Downloaded heapless v0.5.1 [INFO] [stderr] Downloaded aligned v0.3.1 [INFO] [stderr] Downloaded cortex-m-rtfm v0.5.1 [INFO] [stderr] Downloaded embedded-graphics v0.6.0-alpha.2 [INFO] [stderr] Downloaded stm32f0xx-hal v0.15.2 [INFO] [stderr] Downloaded tinytga v0.1.0 [INFO] [stderr] Downloaded stm32f0 v0.8.0 [INFO] [stderr] Downloaded ssd1306 v0.2.6 [INFO] [stderr] Downloaded embedded-graphics v0.4.9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 74da1b59ba0b6b4ea11cf811359651fbace8af87f87a80f311594756fc727bbe [INFO] running `Command { std: "docker" "start" "-a" "74da1b59ba0b6b4ea11cf811359651fbace8af87f87a80f311594756fc727bbe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "74da1b59ba0b6b4ea11cf811359651fbace8af87f87a80f311594756fc727bbe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "74da1b59ba0b6b4ea11cf811359651fbace8af87f87a80f311594756fc727bbe", kill_on_drop: false }` [INFO] [stdout] 74da1b59ba0b6b4ea11cf811359651fbace8af87f87a80f311594756fc727bbe [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] a68493f47f5c7f9090dd6843671dd0e4fd1ba639ac2e93ce8996f08ca5a5a42b [INFO] running `Command { std: "docker" "start" "-a" "a68493f47f5c7f9090dd6843671dd0e4fd1ba639ac2e93ce8996f08ca5a5a42b", kill_on_drop: false }` [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling typenum v1.11.2 [INFO] [stderr] Compiling proc-macro2 v1.0.6 [INFO] [stderr] Compiling cortex-m v0.6.1 [INFO] [stderr] Compiling syn v1.0.8 [INFO] [stderr] Checking stable_deref_trait v1.1.1 [INFO] [stderr] Compiling version_check v0.1.5 [INFO] [stderr] Compiling rand_core v0.4.2 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling nom v4.2.3 [INFO] [stderr] Compiling byteorder v1.3.2 [INFO] [stderr] Checking vcell v0.1.2 [INFO] [stderr] Checking volatile-register v0.2.0 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling rand v0.5.6 [INFO] [stderr] Compiling cortex-m-rt v0.6.10 [INFO] [stderr] Compiling indexmap v1.3.0 [INFO] [stderr] Compiling bare-metal v0.2.5 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Checking r0 v0.2.2 [INFO] [stderr] Compiling cast v0.2.3 [INFO] [stderr] Compiling stm32f0 v0.8.0 [INFO] [stderr] Checking nb v0.1.2 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Compiling libc v0.2.65 [INFO] [stderr] Checking generic-array v0.12.3 [INFO] [stderr] Checking ppv-lite86 v0.2.6 [INFO] [stderr] Compiling heapless v0.5.1 [INFO] [stderr] Checking tinytga v0.1.0 [INFO] [stderr] Checking tinybmp v0.1.0 [INFO] [stderr] Checking generic-array v0.13.2 [INFO] [stderr] Checking embedded-hal v0.2.3 [INFO] [stderr] Checking as-slice v0.1.0 [INFO] [stderr] Checking hash32 v0.1.1 [INFO] [stderr] Compiling ssd1306 v0.2.6 [INFO] [stderr] Compiling cortex-m-rtfm v0.5.1 [INFO] [stderr] Compiling cortex-m-semihosting v0.3.5 [INFO] [stderr] Checking c2-chacha v0.2.3 [INFO] [stderr] Checking embedded-graphics v0.4.9 [INFO] [stderr] Checking rand_chacha v0.2.1 [INFO] [stderr] Checking rand_pcg v0.2.1 [INFO] [stderr] Checking aligned v0.3.1 [INFO] [stderr] Checking rtfm-core v0.3.0 [INFO] [stderr] Compiling mini-proj v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking embedded-graphics v0.6.0-alpha.2 [INFO] [stderr] Checking panic-halt v0.2.0 [INFO] [stderr] Checking rand v0.7.2 [INFO] [stderr] Compiling rtfm-syntax v0.4.0 [INFO] [stderr] Compiling cortex-m-rt-macros v0.1.6 [INFO] [stderr] Compiling cortex-m-rtfm-macros v0.5.0 [INFO] [stderr] Checking stm32f0xx-hal v0.15.2 [INFO] [stdout] warning: unused import: `ToggleableOutputPin` [INFO] [stdout] --> src/display.rs:1:33 [INFO] [stdout] | [INFO] [stdout] 1 | use embedded_hal::digital::v2::{ToggleableOutputPin, OutputPin}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `cortex_m::interrupt::Mutex` [INFO] [stdout] --> src/display.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use cortex_m::interrupt::Mutex; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `core::cell::RefCell` [INFO] [stdout] --> src/display.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use core::cell::RefCell; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Channel` and `OneShot` [INFO] [stdout] --> src/joystick.rs:1:26 [INFO] [stdout] | [INFO] [stdout] 1 | use embedded_hal::adc::{ Channel, OneShot }; [INFO] [stdout] | ^^^^^^^ ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `core::fmt::Write` [INFO] [stdout] --> src/main.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 19 | use core::fmt::Write; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::maze::Point` [INFO] [stdout] --> src/main.rs:21:5 [INFO] [stdout] | [INFO] [stdout] 21 | use crate::maze::Point; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `core::cell::RefCell` [INFO] [stdout] --> src/main.rs:22:5 [INFO] [stdout] | [INFO] [stdout] 22 | use core::cell::RefCell; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `core::ops::DerefMut` [INFO] [stdout] --> src/main.rs:23:5 [INFO] [stdout] | [INFO] [stdout] 23 | use core::ops::DerefMut; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rtfm::Mutex` [INFO] [stdout] --> src/main.rs:25:5 [INFO] [stdout] | [INFO] [stdout] 25 | use rtfm::Mutex; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `delay` [INFO] [stdout] --> src/main.rs:26:26 [INFO] [stdout] | [INFO] [stdout] 26 | use cortex_m::asm::{wfi, delay}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `ssd1306::prelude::*` [INFO] [stdout] --> src/main.rs:29:5 [INFO] [stdout] | [INFO] [stdout] 29 | use ssd1306::prelude::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `embedded_graphics::pixelcolor::BinaryColor` [INFO] [stdout] --> src/main.rs:33:5 [INFO] [stdout] | [INFO] [stdout] 33 | use embedded_graphics::pixelcolor::BinaryColor; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Circle`, `Rectangle`, and `Triangle` [INFO] [stdout] --> src/main.rs:35:37 [INFO] [stdout] | [INFO] [stdout] 35 | use embedded_graphics::primitives::{Circle, Rectangle, Triangle}; [INFO] [stdout] | ^^^^^^ ^^^^^^^^^ ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `cortex_m_semihosting::debug::Exception::InternalError` [INFO] [stdout] --> src/main.rs:39:5 [INFO] [stdout] | [INFO] [stdout] 39 | use cortex_m_semihosting::debug::Exception::InternalError; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [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: `crate::hal::dac` [INFO] [stdout] --> src/main.rs:20:5 [INFO] [stdout] | [INFO] [stdout] 20 | use crate::hal::dac::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `embedded_graphics::prelude` [INFO] [stdout] --> src/main.rs:34:5 [INFO] [stdout] | [INFO] [stdout] 34 | use embedded_graphics::prelude::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/maze.rs:222:7 [INFO] [stdout] | [INFO] [stdout] 222 | let mut rng = rand::rngs::SmallRng::from_seed(seed); [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: `col` [INFO] [stdout] --> src/display.rs:70:17 [INFO] [stdout] | [INFO] [stdout] 70 | for col in 1 .. 4 { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_col` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/display.rs:96:17 [INFO] [stdout] | [INFO] [stdout] 96 | for i in 1 .. 4 { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `port` [INFO] [stdout] --> src/display.rs:127:5 [INFO] [stdout] | [INFO] [stdout] 127 | port: &mut HUBPort, [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_port` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ball` [INFO] [stdout] --> src/display.rs:128:5 [INFO] [stdout] | [INFO] [stdout] 128 | ball: &Ball, [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_ball` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `row` [INFO] [stdout] --> src/display.rs:129:5 [INFO] [stdout] | [INFO] [stdout] 129 | row: u8, [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_row` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `pwm_counter` [INFO] [stdout] --> src/display.rs:130:5 [INFO] [stdout] | [INFO] [stdout] 130 | pwm_counter: u8, [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pwm_counter` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `led_green` [INFO] [stdout] --> src/main.rs:117:17 [INFO] [stdout] | [INFO] [stdout] 117 | mut led_green, mut led_blue, [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_led_green` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `btn` [INFO] [stdout] --> src/main.rs:118:17 [INFO] [stdout] | [INFO] [stdout] 118 | mut btn, [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_btn` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `nvic` [INFO] [stdout] --> src/main.rs:189:17 [INFO] [stdout] | [INFO] [stdout] 189 | let mut nvic = _core.NVIC; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_nvic` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `syscfg` [INFO] [stdout] --> src/main.rs:197:13 [INFO] [stdout] | [INFO] [stdout] 197 | let syscfg = _device.SYSCFG; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_syscfg` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:114:13 [INFO] [stdout] | [INFO] [stdout] 114 | let mut delay = Delay::new(_core.SYST, &rcc); [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/main.rs:117:13 [INFO] [stdout] | [INFO] [stdout] 117 | mut led_green, mut led_blue, [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/main.rs:118:13 [INFO] [stdout] | [INFO] [stdout] 118 | mut btn, [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/main.rs:119:13 [INFO] [stdout] | [INFO] [stdout] 119 | mut buz, [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/main.rs:120:13 [INFO] [stdout] | [INFO] [stdout] 120 | mut scl, mut sda, [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/main.rs:120:22 [INFO] [stdout] | [INFO] [stdout] 120 | mut scl, mut sda, [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/main.rs:121:45 [INFO] [stdout] | [INFO] [stdout] 121 | mut joystick_x, mut joystick_y, mut joystick_btn, [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/main.rs:160:13 [INFO] [stdout] | [INFO] [stdout] 160 | let mut i2c = I2c::i2c1(_device.I2C1, (scl, sda), 100.khz(), &mut rcc); [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/main.rs:161:13 [INFO] [stdout] | [INFO] [stdout] 161 | let mut serial = serial::Serial::usart1(_device.USART1, (tx, rx), 115_200.bps(), &mut rcc); [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/main.rs:162:13 [INFO] [stdout] | [INFO] [stdout] 162 | let mut display: GraphicsMode<_> = Builder::new().connect_i2c(i2c).into(); [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/main.rs:170:13 [INFO] [stdout] | [INFO] [stdout] 170 | let mut dac = hal::dac::dac(_device.DAC, buz, &mut rcc); [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/main.rs:189:13 [INFO] [stdout] | [INFO] [stdout] 189 | let mut nvic = _core.NVIC; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:331:17 [INFO] [stdout] | [INFO] [stdout] 331 | for i in 0 .. 2 { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 40 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `mini-proj` (bin "mini-proj") due to 2 previous errors; 40 warnings emitted [INFO] running `Command { std: "docker" "inspect" "a68493f47f5c7f9090dd6843671dd0e4fd1ba639ac2e93ce8996f08ca5a5a42b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a68493f47f5c7f9090dd6843671dd0e4fd1ba639ac2e93ce8996f08ca5a5a42b", kill_on_drop: false }` [INFO] [stdout] a68493f47f5c7f9090dd6843671dd0e4fd1ba639ac2e93ce8996f08ca5a5a42b