[INFO] cloning repository https://github.com/kKdH/rust-stm32-playground [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kKdH/rust-stm32-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FkKdH%2Frust-stm32-playground", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FkKdH%2Frust-stm32-playground'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FkKdH%2Frust-stm32-playground: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 1) [INFO] cloning repository https://github.com/kKdH/rust-stm32-playground [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kKdH/rust-stm32-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FkKdH%2Frust-stm32-playground", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FkKdH%2Frust-stm32-playground'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b4d57483a6ca8c722bd431e8df8f3d77a6b00b5b [INFO] checking kKdH/rust-stm32-playground against try#7df376b035b3d12ff0386ad8b45b76dbe020257b for pr-142712 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FkKdH%2Frust-stm32-playground" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] removed /workspace/builds/worker-2-tc2/source/.cargo/config [INFO] started tweaking git repo https://github.com/kKdH/rust-stm32-playground [INFO] finished tweaking git repo https://github.com/kKdH/rust-stm32-playground [INFO] tweaked toml for git repo https://github.com/kKdH/rust-stm32-playground written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/kKdH/rust-stm32-playground on toolchain 7df376b035b3d12ff0386ad8b45b76dbe020257b [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7df376b035b3d12ff0386ad8b45b76dbe020257b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/kKdH/rust-stm32-playground 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" "+7df376b035b3d12ff0386ad8b45b76dbe020257b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+7df376b035b3d12ff0386ad8b45b76dbe020257b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7b7fc2a29805ed0c3e69902543722593b162a6e56c0e332270a50c386e159993 [INFO] running `Command { std: "docker" "start" "-a" "7b7fc2a29805ed0c3e69902543722593b162a6e56c0e332270a50c386e159993", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7b7fc2a29805ed0c3e69902543722593b162a6e56c0e332270a50c386e159993", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7b7fc2a29805ed0c3e69902543722593b162a6e56c0e332270a50c386e159993", kill_on_drop: false }` [INFO] [stdout] 7b7fc2a29805ed0c3e69902543722593b162a6e56c0e332270a50c386e159993 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+7df376b035b3d12ff0386ad8b45b76dbe020257b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 518d35759a928d8804907ebf636ac32e82bc95e82d7e67f3dc269ab09b05f342 [INFO] running `Command { std: "docker" "start" "-a" "518d35759a928d8804907ebf636ac32e82bc95e82d7e67f3dc269ab09b05f342", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.32 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.94 [INFO] [stderr] Checking nb v1.1.0 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Checking vcell v0.1.3 [INFO] [stderr] Compiling cortex-m v0.7.7 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking nb v0.1.3 [INFO] [stderr] Compiling cortex-m-rt v0.7.3 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Checking embedded-hal v0.2.7 [INFO] [stderr] Checking volatile-register v0.2.1 [INFO] [stderr] Checking stable_deref_trait v1.2.0 [INFO] [stderr] Checking critical-section v1.1.1 [INFO] [stderr] Checking bitfield v0.13.2 [INFO] [stderr] Checking gcd v2.3.0 [INFO] [stderr] Compiling stm32f4 v0.15.1 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking bare-metal v1.0.0 [INFO] [stderr] Checking bitflags v1.3.2 [INFO] [stderr] Checking fugit v0.3.6 [INFO] [stderr] Checking time-core v0.1.0 [INFO] [stderr] Checking embedded-hal v1.0.0-alpha.11 [INFO] [stderr] Checking time v0.3.20 [INFO] [stderr] Checking bxcan v0.7.0 [INFO] [stderr] Checking embedded-dma v0.2.0 [INFO] [stderr] Checking ufmt-write v0.1.0 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Compiling bare-metal v0.2.5 [INFO] [stderr] Checking embedded-hal-nb v1.0.0-alpha.3 [INFO] [stderr] Checking bitflags v2.4.0 [INFO] [stderr] Compiling quote v1.0.10 [INFO] [stderr] Checking embedded-storage v0.2.0 [INFO] [stderr] Checking panic-halt v0.2.0 [INFO] [stderr] Checking fugit-timer v0.1.3 [INFO] [stderr] Compiling semver v1.0.17 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling serde_derive v1.0.147 [INFO] [stderr] Compiling serde v1.0.147 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Checking cobs v0.2.3 [INFO] [stderr] Checking rust-stm32-playground v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking rtt-target v0.3.1 [INFO] [stderr] Checking hash32 v0.2.1 [INFO] [stderr] Compiling lock_api v0.4.9 [INFO] [stderr] Compiling rustc_version v0.4.0 [INFO] [stderr] Checking spin v0.9.8 [INFO] [stderr] Compiling heapless v0.7.16 [INFO] [stderr] Compiling cortex-m-rt-macros v0.7.0 [INFO] [stderr] Checking postcard v1.0.4 [INFO] [stderr] Checking stm32f4xx-hal v0.17.1 [INFO] [stderr] Checking hello_analog_potentiometer v0.1.0 (/opt/rustwide/workdir/hello_analog_potentiometer) [INFO] [stderr] Checking hello_spi v0.1.0 (/opt/rustwide/workdir/hello_spi) [INFO] [stderr] Checking hello_led_btn_isr v0.1.0 (/opt/rustwide/workdir/hello_led_btn_isr) [INFO] [stderr] Checking hello_rotary_encoder v0.1.0 (/opt/rustwide/workdir/hello_rotary_encoder) [INFO] [stderr] Checking hello_uart v0.1.0 (/opt/rustwide/workdir/hello_uart) [INFO] [stderr] Checking hello_ms8607 v0.1.0 (/opt/rustwide/workdir/hello_ms8607) [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 variable: `sys_cfg` [INFO] [stdout] --> hello_rotary_encoder/src/main.rs:30:13 [INFO] [stdout] | [INFO] [stdout] 30 | let mut sys_cfg = device.SYSCFG.constrain(); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sys_cfg` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `delay` [INFO] [stdout] --> hello_rotary_encoder/src/main.rs:37:13 [INFO] [stdout] | [INFO] [stdout] 37 | let mut delay = core.SYST.delay(&clocks); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_delay` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> hello_rotary_encoder/src/main.rs:30:9 [INFO] [stdout] | [INFO] [stdout] 30 | let mut sys_cfg = device.SYSCFG.constrain(); [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] --> hello_rotary_encoder/src/main.rs:37:9 [INFO] [stdout] | [INFO] [stdout] 37 | let mut delay = core.SYST.delay(&clocks); [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] --> hello_rotary_encoder/src/main.rs:39:9 [INFO] [stdout] | [INFO] [stdout] 39 | let mut pin_clk = gpio_a.pa8 [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] --> hello_rotary_encoder/src/main.rs:41:9 [INFO] [stdout] | [INFO] [stdout] 41 | let mut pin_dt = gpio_b.pb10 [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] --> hello_rotary_encoder/src/main.rs:43:9 [INFO] [stdout] | [INFO] [stdout] 43 | let mut button = gpio_b.pb4 [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `hello_rotary_encoder` (bin "hello_rotary_encoder") due to 1 previous error; 7 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [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: `cortex_m::register::control::Npriv::Privileged` [INFO] [stdout] --> hello_uart/src/main.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use cortex_m::register::control::Npriv::Privileged; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `stm32f4xx_hal::pac::USART2` [INFO] [stdout] --> hello_uart/src/main.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | use stm32f4xx_hal::pac::USART2; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Rx` [INFO] [stdout] --> hello_uart/src/main.rs:15:37 [INFO] [stdout] | [INFO] [stdout] 15 | use stm32f4xx_hal::serial::{Config, Rx}; [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: `rprintln` [INFO] [stdout] --> hello_analog_potentiometer/src/main.rs:9:18 [INFO] [stdout] | [INFO] [stdout] 9 | use rtt_target::{rprintln, rtt_init_print}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0152]: duplicate lang item in crate `std` (which `test` depends on): `panic_impl` [INFO] [stdout] | [INFO] [stdout] = note: the lang item is first defined in crate `panic_halt` (which `hello_analog_potentiometer` depends on) [INFO] [stdout] = note: first definition in `panic_halt` loaded from /opt/rustwide/target/debug/deps/libpanic_halt-b09f8ab056e64272.rmeta [INFO] [stdout] = note: second definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/7df376b035b3d12ff0386ad8b45b76dbe020257b/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-cd49941e27532977.rlib [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0152]: duplicate lang item in crate `std` (which `test` depends on): `panic_impl` [INFO] [stdout] | [INFO] [stdout] = note: the lang item is first defined in crate `panic_halt` (which `hello_spi` depends on) [INFO] [stdout] = note: first definition in `panic_halt` loaded from /opt/rustwide/target/debug/deps/libpanic_halt-b09f8ab056e64272.rmeta [INFO] [stdout] = note: second definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/7df376b035b3d12ff0386ad8b45b76dbe020257b/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-cd49941e27532977.rlib [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0152]: duplicate lang item in crate `std` (which `test` depends on): `panic_impl` [INFO] [stdout] | [INFO] [stdout] = note: the lang item is first defined in crate `panic_halt` (which `hello_rotary_encoder` depends on) [INFO] [stdout] = note: first definition in `panic_halt` loaded from /opt/rustwide/target/debug/deps/libpanic_halt-b09f8ab056e64272.rmeta [INFO] [stdout] = note: second definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/7df376b035b3d12ff0386ad8b45b76dbe020257b/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-cd49941e27532977.rlib [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0152]: duplicate lang item in crate `std` (which `test` depends on): `panic_impl` [INFO] [stdout] | [INFO] [stdout] = note: the lang item is first defined in crate `panic_halt` (which `hello_led_btn_isr` depends on) [INFO] [stdout] = note: first definition in `panic_halt` loaded from /opt/rustwide/target/debug/deps/libpanic_halt-b09f8ab056e64272.rmeta [INFO] [stdout] = note: second definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/7df376b035b3d12ff0386ad8b45b76dbe020257b/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-cd49941e27532977.rlib [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0152`. [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0152`. [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0152`. [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0152`. [INFO] [stdout] [INFO] [stderr] error: could not compile `hello_analog_potentiometer` (bin "hello_analog_potentiometer" test) due to 1 previous error; 1 warning emitted [INFO] [stderr] error: could not compile `hello_spi` (bin "hello_spi" test) due to 1 previous error [INFO] [stderr] error: could not compile `hello_rotary_encoder` (bin "hello_rotary_encoder" test) due to 1 previous error [INFO] [stderr] error: could not compile `hello_led_btn_isr` (bin "hello_led_btn_isr" test) due to 1 previous error [INFO] [stdout] error[E0061]: this method takes 2 arguments but 1 argument was supplied [INFO] [stdout] --> hello_spi/src/main.rs:76:24 [INFO] [stdout] | [INFO] [stdout] 76 | match spi1.transfer(&mut tmp) { [INFO] [stdout] | ^^^^^^^^---------- argument #2 of type `&[u16]` is missing [INFO] [stdout] | [INFO] [stdout] note: method defined here [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/stm32f4xx-hal-0.17.1/src/spi.rs:887:12 [INFO] [stdout] | [INFO] [stdout] 887 | pub fn transfer(&mut self, buff: &mut [W], data: &[W]) -> Result<(), Error> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] help: provide the argument [INFO] [stdout] | [INFO] [stdout] 76 | match spi1.transfer(&mut tmp, /* &[u16] */) { [INFO] [stdout] | ++++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `stm32f4xx_hal::gpio::Edge` [INFO] [stdout] --> hello_ms8607/src/main.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use stm32f4xx_hal::gpio::Edge; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0152]: duplicate lang item in crate `std` (which `test` depends on): `panic_impl` [INFO] [stdout] | [INFO] [stdout] = note: the lang item is first defined in crate `panic_halt` (which `hello_ms8607` depends on) [INFO] [stdout] = note: first definition in `panic_halt` loaded from /opt/rustwide/target/debug/deps/libpanic_halt-b09f8ab056e64272.rmeta [INFO] [stdout] = note: second definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/7df376b035b3d12ff0386ad8b45b76dbe020257b/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-cd49941e27532977.rlib [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0152`. [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0061`. [INFO] [stdout] [INFO] [stderr] error: could not compile `hello_ms8607` (bin "hello_ms8607" test) due to 1 previous error; 1 warning emitted [INFO] [stdout] warning: unused variable: `delay` [INFO] [stdout] --> hello_uart/src/main.rs:37:13 [INFO] [stdout] | [INFO] [stdout] 37 | let mut delay = dp.TIM1.delay_ms(&clocks); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_delay` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `value` is never read [INFO] [stdout] --> hello_uart/src/main.rs:60:13 [INFO] [stdout] | [INFO] [stdout] 60 | let mut value: u8 = 0; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> hello_uart/src/main.rs:37:9 [INFO] [stdout] | [INFO] [stdout] 37 | let mut delay = dp.TIM1.delay_ms(&clocks); [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] [stderr] error: could not compile `hello_spi` (bin "hello_spi") due to 2 previous errors [INFO] [stderr] error: could not compile `hello_uart` (bin "hello_uart") due to 1 previous error; 6 warnings emitted [INFO] running `Command { std: "docker" "inspect" "518d35759a928d8804907ebf636ac32e82bc95e82d7e67f3dc269ab09b05f342", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "518d35759a928d8804907ebf636ac32e82bc95e82d7e67f3dc269ab09b05f342", kill_on_drop: false }` [INFO] [stdout] 518d35759a928d8804907ebf636ac32e82bc95e82d7e67f3dc269ab09b05f342