[INFO] cloning repository https://github.com/kimkitsik/aerosol
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kimkitsik/aerosol" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkimkitsik%2Faerosol", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkimkitsik%2Faerosol'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6b3c3d22de7574a3fc6714f82a5bd9afbb694836
[INFO] checking kimkitsik/aerosol against try#3fada14ee01d755dc8076e611f11bf65b28ffd21 for pr-154971-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkimkitsik%2Faerosol" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-7-tc2/source/.cargo/config
[INFO] started tweaking git repo https://github.com/kimkitsik/aerosol
[INFO] finished tweaking git repo https://github.com/kimkitsik/aerosol
[INFO] tweaked toml for git repo https://github.com/kimkitsik/aerosol written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kimkitsik/aerosol on toolchain 3fada14ee01d755dc8076e611f11bf65b28ffd21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3fada14ee01d755dc8076e611f11bf65b28ffd21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kimkitsik/aerosol 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" "+3fada14ee01d755dc8076e611f11bf65b28ffd21" "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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+3fada14ee01d755dc8076e611f11bf65b28ffd21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 954088c9bb0f6b07691b3316c4cfebe524c19aef85a788742a4a3dc155eef6e8
[INFO] running `Command { std: "docker" "start" "-a" "954088c9bb0f6b07691b3316c4cfebe524c19aef85a788742a4a3dc155eef6e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "954088c9bb0f6b07691b3316c4cfebe524c19aef85a788742a4a3dc155eef6e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "954088c9bb0f6b07691b3316c4cfebe524c19aef85a788742a4a3dc155eef6e8", kill_on_drop: false }`
[INFO] [stdout] 954088c9bb0f6b07691b3316c4cfebe524c19aef85a788742a4a3dc155eef6e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+3fada14ee01d755dc8076e611f11bf65b28ffd21" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa70a5c281fde434c8a676958d231c5228d42943aecd4513db891479d50d7730
[INFO] running `Command { std: "docker" "start" "-a" "aa70a5c281fde434c8a676958d231c5228d42943aecd4513db891479d50d7730", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling cortex-m v0.7.4
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling cortex-m-rt v0.7.1
[INFO] [stderr]    Compiling paste v1.0.7
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]     Checking volatile-register v0.2.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling cortex-m v0.6.7
[INFO] [stderr]    Compiling libc v0.2.124
[INFO] [stderr]    Compiling stm32f4 v0.14.0
[INFO] [stderr]    Compiling heapless v0.7.10
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking bare-metal v1.0.0
[INFO] [stderr]     Checking rtic-monotonic v1.0.0
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]     Checking usb-device v0.2.8
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling synopsys-usb-otg v0.2.4
[INFO] [stderr]     Checking num_threads v0.1.5
[INFO] [stderr]     Checking embedded-hal v1.0.0-alpha.7
[INFO] [stderr]     Checking embedded-dma v0.2.0
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[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking linked_list_allocator v0.8.11
[INFO] [stderr]     Checking embedded-storage v0.2.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]     Checking bit_field v0.10.1
[INFO] [stderr]     Checking panic-halt v0.2.0
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling cortex-m-rtic v1.0.0
[INFO] [stderr]     Checking usbd-serial v0.1.1
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking max31855 v0.1.0
[INFO] [stderr]     Checking gcd v2.1.0
[INFO] [stderr]     Checking fugit v0.3.5
[INFO] [stderr]     Checking spin v0.9.3
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking fugit-timer v0.1.3
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking time v0.3.9
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]     Checking generic-array v0.13.3
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking alloc-cortex-m v0.4.2
[INFO] [stderr]     Checking systick-monotonic v1.0.0
[INFO] [stderr]     Checking as-slice v0.1.5
[INFO] [stderr]     Checking aligned v0.3.5
[INFO] [stderr]    Compiling rtic-syntax v1.0.1
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.7.0
[INFO] [stderr]    Compiling cortex-m-rtic-macros v1.0.0
[INFO] [stderr]     Checking stm32f4xx-hal v0.13.1
[INFO] [stderr]     Checking aerosol v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `OpenDrain`
[INFO] [stdout]   --> src/main.rs:23:42
[INFO] [stdout]    |
[INFO] [stdout] 23 |     use stm32f4xx_hal::gpio::{Alternate, OpenDrain, Output};
[INFO] [stdout]    |                                          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[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: `OpenDrain`
[INFO] [stdout]   --> src/main.rs:23:42
[INFO] [stdout]    |
[INFO] [stdout] 23 |     use stm32f4xx_hal::gpio::{Alternate, OpenDrain, Output};
[INFO] [stdout]    |                                          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) 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 `aerosol` depends on)
[INFO] [stdout]   = note: first definition in `panic_halt` loaded from /opt/rustwide/target/debug/deps/libpanic_halt-a74322d759c17631.rmeta
[INFO] [stdout]   = note: second definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/3fada14ee01d755dc8076e611f11bf65b28ffd21/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-fa01d964e82d0da8.rmeta
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `aerosol` (bin "aerosol" test) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:372:54
[INFO] [stdout]     |
[INFO] [stdout] 372 |     fn read_temperature(cs_pin: &mut impl OutputPin, mut spi: &mut impl Transfer<u8>, mut delay: &mut impl DelayUs<u32>) -> Result<...
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:372:87
[INFO] [stdout]     |
[INFO] [stdout] 372 |     fn read_temperature(cs_pin: &mut impl OutputPin, mut spi: &mut impl Transfer<u8>, mut delay: &mut impl DelayUs<u32>) -> Result<...
[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:95:13
[INFO] [stdout]    |
[INFO] [stdout] 95 |         let mut delay = device.TIM5.delay_us(&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]    --> src/main.rs:103:13
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let mut kyte1 = gpioc.pc0.into_push_pull_output();
[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:104:13
[INFO] [stdout]     |
[INFO] [stdout] 104 |         let mut kyte2 = gpioc.pc1.into_push_pull_output();
[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:105:13
[INFO] [stdout]     |
[INFO] [stdout] 105 |         let mut kyte3 = gpioc.pc2.into_push_pull_output();
[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:106:13
[INFO] [stdout]     |
[INFO] [stdout] 106 |         let mut peltier1 = gpioa.pa1.into_push_pull_output();
[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:107:13
[INFO] [stdout]     |
[INFO] [stdout] 107 |         let mut peltier2 = gpioa.pa2.into_push_pull_output();
[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:108:13
[INFO] [stdout]     |
[INFO] [stdout] 108 |         let mut fan1=gpioc.pc8.into_push_pull_output();
[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:109:13
[INFO] [stdout]     |
[INFO] [stdout] 109 |         let mut fan2=gpioc.pc9.into_push_pull_output();
[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:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |         let mut filter=gpiob.pb1.into_push_pull_output();
[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:116:13
[INFO] [stdout]     |
[INFO] [stdout] 116 |         let mut spi = device.SPI1.spi((sck, miso, mosi), mode, 1_000_000.Hz(), &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]    --> src/main.rs:166:14
[INFO] [stdout]     |
[INFO] [stdout] 166 |         let (mut kyte1_enable, mut kyte2_enable, mut peltier_enable, mut filter_enable)=(1, 1, 1, 0);
[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:166:32
[INFO] [stdout]     |
[INFO] [stdout] 166 |         let (mut kyte1_enable, mut kyte2_enable, mut peltier_enable, mut filter_enable)=(1, 1, 1, 0);
[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:166:50
[INFO] [stdout]     |
[INFO] [stdout] 166 |         let (mut kyte1_enable, mut kyte2_enable, mut peltier_enable, mut filter_enable)=(1, 1, 1, 0);
[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:166:70
[INFO] [stdout]     |
[INFO] [stdout] 166 |         let (mut kyte1_enable, mut kyte2_enable, mut peltier_enable, mut filter_enable)=(1, 1, 1, 0);
[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:203:17
[INFO] [stdout]     |
[INFO] [stdout] 203 |             let mut peltier_buf = ArrayString::<200>::new();
[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:211:33
[INFO] [stdout]     |
[INFO] [stdout] 211 | ...                   let mut output = pid1.set_input(r.temp);
[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:228:33
[INFO] [stdout]     |
[INFO] [stdout] 228 | ...                   let mut output = pid2.set_input(r.temp);
[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:244:33
[INFO] [stdout]     |
[INFO] [stdout] 244 | ...                   let mut output = pid3.set_input(r.temp);
[INFO] [stdout]     |                           ----^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cs4`
[INFO] [stdout]    --> src/main.rs:159:29
[INFO] [stdout]     |
[INFO] [stdout] 159 |         let (cs1, cs2, cs3, cs4)=(ctx.local.cs1, ctx.local.cs2, ctx.local.cs3, ctx.local.cs4);
[INFO] [stdout]     |                             ^^^ help: if this is intentional, prefix it with an underscore: `_cs4`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `kyte3`
[INFO] [stdout]    --> src/main.rs:160:28
[INFO] [stdout]     |
[INFO] [stdout] 160 |         let (kyte1, kyte2, kyte3)=(ctx.local.kyte1, ctx.local.kyte2, ctx.local.kyte3);
[INFO] [stdout]     |                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_kyte3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `peltier2`
[INFO] [stdout]    --> src/main.rs:161:24
[INFO] [stdout]     |
[INFO] [stdout] 161 |         let (peltier1, peltier2) = (ctx.local.peltier1, ctx.local.peltier2);
[INFO] [stdout]     |                        ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_peltier2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `state1` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:176:14
[INFO] [stdout]     |
[INFO] [stdout] 176 |         let (mut state1, mut state2, mut state3)=("","","");
[INFO] [stdout]     |              ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_state1` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `state2` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:176:26
[INFO] [stdout]     |
[INFO] [stdout] 176 |         let (mut state1, mut state2, mut state3)=("","","");
[INFO] [stdout]     |                          ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_state2` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `state3` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:176:38
[INFO] [stdout]     |
[INFO] [stdout] 176 |         let (mut state1, mut state2, mut state3)=("","","");
[INFO] [stdout]     |                                      ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_state3` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `peltier_buf`
[INFO] [stdout]    --> src/main.rs:203:17
[INFO] [stdout]     |
[INFO] [stdout] 203 |             let mut peltier_buf = ArrayString::<200>::new();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_peltier_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `state1` is never read
[INFO] [stdout]    --> src/main.rs:278:21
[INFO] [stdout]     |
[INFO] [stdout] 278 |                     state1 = " heating";
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 282 |                     state1 = " cooling";
[INFO] [stdout]     |                     ------------------- `state1` is overwritten here before the previous value is read
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `state1` is never read
[INFO] [stdout]    --> src/main.rs:282:21
[INFO] [stdout]     |
[INFO] [stdout] 282 |                     state1 = " cooling";
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `state2` is never read
[INFO] [stdout]    --> src/main.rs:289:21
[INFO] [stdout]     |
[INFO] [stdout] 289 |                     state2 = " heating";
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 293 |                     state2 = " cooling";
[INFO] [stdout]     |                     ------------------- `state2` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `state2` is never read
[INFO] [stdout]    --> src/main.rs:293:21
[INFO] [stdout]     |
[INFO] [stdout] 293 |                     state2 = " cooling";
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `state3` is never read
[INFO] [stdout]    --> src/main.rs:300:21
[INFO] [stdout]     |
[INFO] [stdout] 300 |                     state3=" on";
[INFO] [stdout]     |                     ^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 304 |                     state3=" off";
[INFO] [stdout]     |                     ------------- `state3` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `state3` is never read
[INFO] [stdout]    --> src/main.rs:304:21
[INFO] [stdout]     |
[INFO] [stdout] 304 |                     state3=" off";
[INFO] [stdout]     |                     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `aerosol` (bin "aerosol") due to 1 previous error; 34 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "aa70a5c281fde434c8a676958d231c5228d42943aecd4513db891479d50d7730", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa70a5c281fde434c8a676958d231c5228d42943aecd4513db891479d50d7730", kill_on_drop: false }`
[INFO] [stdout] aa70a5c281fde434c8a676958d231c5228d42943aecd4513db891479d50d7730
