[INFO] cloning repository https://github.com/FlyingYu-Z/stm32-esp8266-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FlyingYu-Z/stm32-esp8266-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFlyingYu-Z%2Fstm32-esp8266-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFlyingYu-Z%2Fstm32-esp8266-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 26995ef1a3ae5d97caba9e8c0d062dd8a416b3a2
[INFO] checking FlyingYu-Z/stm32-esp8266-rs against master#cf79d034aa3d8f396d407aafce6f1ccd818e710e for pr-155657
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFlyingYu-Z%2Fstm32-esp8266-rs" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/FlyingYu-Z/stm32-esp8266-rs
[INFO] finished tweaking git repo https://github.com/FlyingYu-Z/stm32-esp8266-rs
[INFO] tweaked toml for git repo https://github.com/FlyingYu-Z/stm32-esp8266-rs written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/FlyingYu-Z/stm32-esp8266-rs on toolchain cf79d034aa3d8f396d407aafce6f1ccd818e710e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf79d034aa3d8f396d407aafce6f1ccd818e710e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/FlyingYu-Z/stm32-esp8266-rs 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" "+cf79d034aa3d8f396d407aafce6f1ccd818e710e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fugit-timer v0.1.3
[INFO] [stderr]   Downloaded cortex-m-semihosting v0.5.0
[INFO] [stderr]   Downloaded bxcan v0.7.0
[INFO] [stderr]   Downloaded usb-device v0.2.9
[INFO] [stderr]   Downloaded stm32-usbd v0.6.0
[INFO] [stderr]   Downloaded fugit v0.3.7
[INFO] [stderr]   Downloaded stm32f1xx-hal v0.10.0
[INFO] [stderr]   Downloaded embedded-dma v0.2.0
[INFO] [stderr]   Downloaded stm32f1 v0.15.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+cf79d034aa3d8f396d407aafce6f1ccd818e710e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d55c2bbf2985f03c041fcb52ba30caf39dc35a5edc9b4bd91fa97f02d3e92b11
[INFO] running `Command { std: "docker" "start" "-a" "d55c2bbf2985f03c041fcb52ba30caf39dc35a5edc9b4bd91fa97f02d3e92b11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d55c2bbf2985f03c041fcb52ba30caf39dc35a5edc9b4bd91fa97f02d3e92b11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d55c2bbf2985f03c041fcb52ba30caf39dc35a5edc9b4bd91fa97f02d3e92b11", kill_on_drop: false }`
[INFO] [stdout] d55c2bbf2985f03c041fcb52ba30caf39dc35a5edc9b4bd91fa97f02d3e92b11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+cf79d034aa3d8f396d407aafce6f1ccd818e710e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 941e81c9a2532ef89a0dd0e84f2ca3764d0660c37d57dc24511ade8fd3ce0143
[INFO] running `Command { std: "docker" "start" "-a" "941e81c9a2532ef89a0dd0e84f2ca3764d0660c37d57dc24511ade8fd3ce0143", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]     Checking gcd v2.3.0
[INFO] [stderr]    Compiling stm32-usbd v0.6.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling stm32f1 v0.15.1
[INFO] [stderr]    Compiling cortex-m-semihosting v0.5.0
[INFO] [stderr]    Compiling cortex-m v0.7.7
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]    Compiling cortex-m-rt v0.7.5
[INFO] [stderr]     Checking bare-metal v1.0.0
[INFO] [stderr]     Checking usb-device v0.2.9
[INFO] [stderr]    Compiling heapless v0.8.0
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]     Checking volatile-register v0.2.2
[INFO] [stderr]     Checking embedded-dma v0.2.0
[INFO] [stderr]     Checking fugit v0.3.7
[INFO] [stderr]     Checking bxcan v0.7.0
[INFO] [stderr]     Checking fugit-timer v0.1.3
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.90
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.7.5
[INFO] [stderr]     Checking stm32f1xx-hal v0.10.0
[INFO] [stderr]     Checking stm32-esp8266-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `cell::RefCell`
[INFO] [stdout]  --> src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | use core::{cell::RefCell, str};
[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: `Vec`
[INFO] [stdout]  --> src/lib.rs:7:24
[INFO] [stdout]   |
[INFO] [stdout] 7 | use heapless::{String, Vec};
[INFO] [stdout]   |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Instance`
[INFO] [stdout]   --> src/lib.rs:11:14
[INFO] [stdout]    |
[INFO] [stdout] 11 |     serial::{Instance, Rx, Tx},
[INFO] [stdout]    |              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cell::RefCell`
[INFO] [stdout]  --> src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | use core::{cell::RefCell, str};
[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: `Vec`
[INFO] [stdout]  --> src/lib.rs:7:24
[INFO] [stdout]   |
[INFO] [stdout] 7 | use heapless::{String, Vec};
[INFO] [stdout]   |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Instance`
[INFO] [stdout]   --> src/lib.rs:11:14
[INFO] [stdout]    |
[INFO] [stdout] 11 |     serial::{Instance, Rx, Tx},
[INFO] [stdout]    |              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:50:16
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn new(mut tx: Tx<USART>, mut rx: Rx<USART>, power_pin: PA4<Output<PushPull>>, timer: &'a mut Counter<TIM, FREQ>) -> Self {
[INFO] [stdout]    |                ----^^
[INFO] [stdout]    |                |
[INFO] [stdout]    |                help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ESP_RX_BUFF_SIZE` is never used
[INFO] [stdout]   --> src/lib.rs:31:7
[INFO] [stdout]    |
[INFO] [stdout] 31 | const ESP_RX_BUFF_SIZE: usize = 256;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:50:16
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn new(mut tx: Tx<USART>, mut rx: Rx<USART>, power_pin: PA4<Output<PushPull>>, timer: &'a mut Counter<TIM, FREQ>) -> Self {
[INFO] [stdout]    |                ----^^
[INFO] [stdout]    |                |
[INFO] [stdout]    |                help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ESP_RX_BUFF_SIZE` is never used
[INFO] [stdout]   --> src/lib.rs:31:7
[INFO] [stdout]    |
[INFO] [stdout] 31 | const ESP_RX_BUFF_SIZE: usize = 256;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.65s
[INFO] running `Command { std: "docker" "inspect" "941e81c9a2532ef89a0dd0e84f2ca3764d0660c37d57dc24511ade8fd3ce0143", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "941e81c9a2532ef89a0dd0e84f2ca3764d0660c37d57dc24511ade8fd3ce0143", kill_on_drop: false }`
[INFO] [stdout] 941e81c9a2532ef89a0dd0e84f2ca3764d0660c37d57dc24511ade8fd3ce0143
