[INFO] cloning repository https://github.com/bsodmike/owned-transform-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bsodmike/owned-transform-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbsodmike%2Fowned-transform-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbsodmike%2Fowned-transform-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f11643938d0a0da9c1f38bbb9ecf32f7895befa2
[INFO] testing bsodmike/owned-transform-rs against master#1f7f8ea0721a3b1eb73e6c6d25cccb371434b320 for pr-154065-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbsodmike%2Fowned-transform-rs" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/bsodmike/owned-transform-rs
[INFO] finished tweaking git repo https://github.com/bsodmike/owned-transform-rs
[INFO] tweaked toml for git repo https://github.com/bsodmike/owned-transform-rs written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/bsodmike/owned-transform-rs on toolchain 1f7f8ea0721a3b1eb73e6c6d25cccb371434b320
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/bsodmike/owned-transform-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" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/rust-embedded/embedded-hal`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nb v1.0.0
[INFO] [stderr]   Downloaded io-lifetimes v1.0.3
[INFO] [stderr]   Downloaded windows_x86_64_gnullvm v0.42.0
[INFO] [stderr]   Downloaded windows_aarch64_gnullvm v0.42.0
[INFO] [stderr]   Downloaded is-terminal v0.4.1
[INFO] [stderr]   Downloaded windows_i686_msvc v0.42.0
[INFO] [stderr]   Downloaded rustix v0.36.5
[INFO] [stderr]   Downloaded windows_aarch64_msvc v0.42.0
[INFO] [stderr]   Downloaded windows_x86_64_gnu v0.42.0
[INFO] [stderr]   Downloaded windows_x86_64_msvc v0.42.0
[INFO] [stderr]   Downloaded windows_i686_gnu v0.42.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 83571a6c376fda2d0244569ba57b1d3315fedaa278052da4506e097ce9f981cc
[INFO] running `Command { std: "docker" "start" "-a" "83571a6c376fda2d0244569ba57b1d3315fedaa278052da4506e097ce9f981cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "83571a6c376fda2d0244569ba57b1d3315fedaa278052da4506e097ce9f981cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83571a6c376fda2d0244569ba57b1d3315fedaa278052da4506e097ce9f981cc", kill_on_drop: false }`
[INFO] [stdout] 83571a6c376fda2d0244569ba57b1d3315fedaa278052da4506e097ce9f981cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6834dc5e6222f9d8107117e454de874f2de8c8d8f898b95e526c340b8a260206
[INFO] running `Command { std: "docker" "start" "-a" "6834dc5e6222f9d8107117e454de874f2de8c8d8f898b95e526c340b8a260206", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.138
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling io-lifetimes v1.0.3
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling az v1.2.1
[INFO] [stderr]    Compiling rustix v0.36.5
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling linux-raw-sys v0.1.4
[INFO] [stderr]    Compiling anyhow v1.0.66
[INFO] [stderr]    Compiling nb v1.0.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling regex-syntax v0.6.28
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling termcolor v1.1.3
[INFO] [stderr]    Compiling micromath v1.1.1
[INFO] [stderr]    Compiling embedded-hal v0.2.7
[INFO] [stderr]    Compiling aho-corasick v0.7.20
[INFO] [stderr]    Compiling embedded-hal v1.0.0-alpha.9 (https://github.com/rust-embedded/embedded-hal#812471bf)
[INFO] [stderr]    Compiling embedded-graphics-core v0.3.3
[INFO] [stderr]    Compiling float-cmp v0.8.0
[INFO] [stderr]    Compiling regex v1.7.0
[INFO] [stderr]    Compiling embedded-graphics v0.7.1
[INFO] [stderr]    Compiling is-terminal v0.4.1
[INFO] [stderr]    Compiling env_logger v0.10.0
[INFO] [stderr]    Compiling owned-transform v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `any`
[INFO] [stdout]   --> src/main.rs:15:11
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::{any, convert::Infallible, error};
[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: `marker::PhantomData`
[INFO] [stdout]   --> src/main.rs:16:23
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std::{fmt::Debug, marker::PhantomData};
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `anyhow::Error`
[INFO] [stdout]  --> src/serial.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use anyhow::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Flushable`
[INFO] [stdout]   --> src/main.rs:12:16
[INFO] [stdout]    |
[INFO] [stdout] 12 | use graphics::{Flushable, OwnedDrawTargetExt};
[INFO] [stdout]    |                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/serial.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 |     fn new(mut transformer: T) -> 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: unused variable: `address`
[INFO] [stdout]   --> src/serial.rs:84:25
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn write(&mut self, address: u8, bytes: &[u8]) -> Result<(), Self::Error> {
[INFO] [stdout]    |                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]   --> src/serial.rs:84:38
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn write(&mut self, address: u8, bytes: &[u8]) -> Result<(), Self::Error> {
[INFO] [stdout]    |                                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]   --> src/serial.rs:88:33
[INFO] [stdout]    |
[INFO] [stdout] 88 |     fn write_iter<B>(&mut self, address: u8, bytes: B) -> Result<(), Self::Error>
[INFO] [stdout]    |                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]   --> src/serial.rs:88:46
[INFO] [stdout]    |
[INFO] [stdout] 88 |     fn write_iter<B>(&mut self, address: u8, bytes: B) -> Result<(), Self::Error>
[INFO] [stdout]    |                                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]   --> src/serial.rs:97:9
[INFO] [stdout]    |
[INFO] [stdout] 97 |         address: u8,
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]   --> src/serial.rs:98:9
[INFO] [stdout]    |
[INFO] [stdout] 98 |         bytes: &[u8],
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buffer`
[INFO] [stdout]   --> src/serial.rs:99:9
[INFO] [stdout]    |
[INFO] [stdout] 99 |         buffer: &mut [u8],
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]    --> src/serial.rs:106:9
[INFO] [stdout]     |
[INFO] [stdout] 106 |         address: u8,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]    --> src/serial.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |         bytes: B,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buffer`
[INFO] [stdout]    --> src/serial.rs:108:9
[INFO] [stdout]     |
[INFO] [stdout] 108 |         buffer: &mut [u8],
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]    --> src/serial.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 118 |         address: u8,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operations`
[INFO] [stdout]    --> src/serial.rs:119:9
[INFO] [stdout]     |
[INFO] [stdout] 119 |         operations: &mut [embedded_hal::i2c::Operation<'a>],
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operations`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]    --> src/serial.rs:124:43
[INFO] [stdout]     |
[INFO] [stdout] 124 |     fn transaction_iter<'a, O>(&mut self, address: u8, operations: O) -> Result<(), Self::Error>
[INFO] [stdout]     |                                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operations`
[INFO] [stdout]    --> src/serial.rs:124:56
[INFO] [stdout]     |
[INFO] [stdout] 124 |     fn transaction_iter<'a, O>(&mut self, address: u8, operations: O) -> Result<(), Self::Error>
[INFO] [stdout]     |                                                        ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operations`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]    --> src/main.rs:162:24
[INFO] [stdout]     |
[INFO] [stdout] 162 |     fn read(&mut self, address: u8, buffer: &mut [u8]) -> std::result::Result<(), Self::Error> {
[INFO] [stdout]     |                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buffer`
[INFO] [stdout]    --> src/main.rs:162:37
[INFO] [stdout]     |
[INFO] [stdout] 162 |     fn read(&mut self, address: u8, buffer: &mut [u8]) -> std::result::Result<(), Self::Error> {
[INFO] [stdout]     |                                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]    --> src/main.rs:166:25
[INFO] [stdout]     |
[INFO] [stdout] 166 |     fn write(&mut self, address: u8, bytes: &[u8]) -> std::result::Result<(), Self::Error> {
[INFO] [stdout]     |                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]    --> src/main.rs:166:38
[INFO] [stdout]     |
[INFO] [stdout] 166 |     fn write(&mut self, address: u8, bytes: &[u8]) -> std::result::Result<(), Self::Error> {
[INFO] [stdout]     |                                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]    --> src/main.rs:170:33
[INFO] [stdout]     |
[INFO] [stdout] 170 |     fn write_iter<B>(&mut self, address: u8, bytes: B) -> std::result::Result<(), Self::Error>
[INFO] [stdout]     |                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]    --> src/main.rs:170:46
[INFO] [stdout]     |
[INFO] [stdout] 170 |     fn write_iter<B>(&mut self, address: u8, bytes: B) -> std::result::Result<(), Self::Error>
[INFO] [stdout]     |                                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]    --> src/main.rs:179:9
[INFO] [stdout]     |
[INFO] [stdout] 179 |         address: u8,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]    --> src/main.rs:180:9
[INFO] [stdout]     |
[INFO] [stdout] 180 |         bytes: &[u8],
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buffer`
[INFO] [stdout]    --> src/main.rs:181:9
[INFO] [stdout]     |
[INFO] [stdout] 181 |         buffer: &mut [u8],
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]    --> src/main.rs:188:9
[INFO] [stdout]     |
[INFO] [stdout] 188 |         address: u8,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]    --> src/main.rs:189:9
[INFO] [stdout]     |
[INFO] [stdout] 189 |         bytes: B,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buffer`
[INFO] [stdout]    --> src/main.rs:190:9
[INFO] [stdout]     |
[INFO] [stdout] 190 |         buffer: &mut [u8],
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]    --> src/main.rs:200:9
[INFO] [stdout]     |
[INFO] [stdout] 200 |         address: u8,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operations`
[INFO] [stdout]    --> src/main.rs:201:9
[INFO] [stdout]     |
[INFO] [stdout] 201 |         operations: &mut [embedded_hal::i2c::Operation<'a>],
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operations`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]    --> src/main.rs:208:9
[INFO] [stdout]     |
[INFO] [stdout] 208 |         address: u8,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operations`
[INFO] [stdout]    --> src/main.rs:209:9
[INFO] [stdout]     |
[INFO] [stdout] 209 |         operations: O,
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operations`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CommError` is never constructed
[INFO] [stdout]   --> src/main.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct CommError;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `iface` is never read
[INFO] [stdout]    --> src/main.rs:158:5
[INFO] [stdout]     |
[INFO] [stdout] 157 | struct ExampleDevice<I2C> {
[INFO] [stdout]     |        ------------- field in this struct
[INFO] [stdout] 158 |     iface: I2C,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/serial.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |         self.0.transform().read(address, buffer);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let _ = self.0.transform().read(address, buffer);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.29s
[INFO] running `Command { std: "docker" "inspect" "6834dc5e6222f9d8107117e454de874f2de8c8d8f898b95e526c340b8a260206", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6834dc5e6222f9d8107117e454de874f2de8c8d8f898b95e526c340b8a260206", kill_on_drop: false }`
[INFO] [stdout] 6834dc5e6222f9d8107117e454de874f2de8c8d8f898b95e526c340b8a260206
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6f6eb613eb11f25c2f035c19d6db58249e3134cc37095f4e020d853b7a0b885
[INFO] running `Command { std: "docker" "start" "-a" "b6f6eb613eb11f25c2f035c19d6db58249e3134cc37095f4e020d853b7a0b885", kill_on_drop: false }`
[INFO] [stderr]    Compiling owned-transform v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `any`
[INFO] [stdout]   --> src/main.rs:15:11
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::{any, convert::Infallible, error};
[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: `marker::PhantomData`
[INFO] [stdout]   --> src/main.rs:16:23
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std::{fmt::Debug, marker::PhantomData};
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `anyhow::Error`
[INFO] [stdout]  --> src/serial.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use anyhow::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Flushable`
[INFO] [stdout]   --> src/main.rs:12:16
[INFO] [stdout]    |
[INFO] [stdout] 12 | use graphics::{Flushable, OwnedDrawTargetExt};
[INFO] [stdout]    |                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/serial.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 |     fn new(mut transformer: T) -> 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: unused variable: `address`
[INFO] [stdout]   --> src/serial.rs:84:25
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn write(&mut self, address: u8, bytes: &[u8]) -> Result<(), Self::Error> {
[INFO] [stdout]    |                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]   --> src/serial.rs:84:38
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn write(&mut self, address: u8, bytes: &[u8]) -> Result<(), Self::Error> {
[INFO] [stdout]    |                                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]   --> src/serial.rs:88:33
[INFO] [stdout]    |
[INFO] [stdout] 88 |     fn write_iter<B>(&mut self, address: u8, bytes: B) -> Result<(), Self::Error>
[INFO] [stdout]    |                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]   --> src/serial.rs:88:46
[INFO] [stdout]    |
[INFO] [stdout] 88 |     fn write_iter<B>(&mut self, address: u8, bytes: B) -> Result<(), Self::Error>
[INFO] [stdout]    |                                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]   --> src/serial.rs:97:9
[INFO] [stdout]    |
[INFO] [stdout] 97 |         address: u8,
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]   --> src/serial.rs:98:9
[INFO] [stdout]    |
[INFO] [stdout] 98 |         bytes: &[u8],
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buffer`
[INFO] [stdout]   --> src/serial.rs:99:9
[INFO] [stdout]    |
[INFO] [stdout] 99 |         buffer: &mut [u8],
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]    --> src/serial.rs:106:9
[INFO] [stdout]     |
[INFO] [stdout] 106 |         address: u8,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]    --> src/serial.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |         bytes: B,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buffer`
[INFO] [stdout]    --> src/serial.rs:108:9
[INFO] [stdout]     |
[INFO] [stdout] 108 |         buffer: &mut [u8],
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]    --> src/serial.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 118 |         address: u8,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operations`
[INFO] [stdout]    --> src/serial.rs:119:9
[INFO] [stdout]     |
[INFO] [stdout] 119 |         operations: &mut [embedded_hal::i2c::Operation<'a>],
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operations`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]    --> src/serial.rs:124:43
[INFO] [stdout]     |
[INFO] [stdout] 124 |     fn transaction_iter<'a, O>(&mut self, address: u8, operations: O) -> Result<(), Self::Error>
[INFO] [stdout]     |                                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operations`
[INFO] [stdout]    --> src/serial.rs:124:56
[INFO] [stdout]     |
[INFO] [stdout] 124 |     fn transaction_iter<'a, O>(&mut self, address: u8, operations: O) -> Result<(), Self::Error>
[INFO] [stdout]     |                                                        ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operations`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]    --> src/main.rs:162:24
[INFO] [stdout]     |
[INFO] [stdout] 162 |     fn read(&mut self, address: u8, buffer: &mut [u8]) -> std::result::Result<(), Self::Error> {
[INFO] [stdout]     |                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buffer`
[INFO] [stdout]    --> src/main.rs:162:37
[INFO] [stdout]     |
[INFO] [stdout] 162 |     fn read(&mut self, address: u8, buffer: &mut [u8]) -> std::result::Result<(), Self::Error> {
[INFO] [stdout]     |                                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]    --> src/main.rs:166:25
[INFO] [stdout]     |
[INFO] [stdout] 166 |     fn write(&mut self, address: u8, bytes: &[u8]) -> std::result::Result<(), Self::Error> {
[INFO] [stdout]     |                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]    --> src/main.rs:166:38
[INFO] [stdout]     |
[INFO] [stdout] 166 |     fn write(&mut self, address: u8, bytes: &[u8]) -> std::result::Result<(), Self::Error> {
[INFO] [stdout]     |                                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]    --> src/main.rs:170:33
[INFO] [stdout]     |
[INFO] [stdout] 170 |     fn write_iter<B>(&mut self, address: u8, bytes: B) -> std::result::Result<(), Self::Error>
[INFO] [stdout]     |                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]    --> src/main.rs:170:46
[INFO] [stdout]     |
[INFO] [stdout] 170 |     fn write_iter<B>(&mut self, address: u8, bytes: B) -> std::result::Result<(), Self::Error>
[INFO] [stdout]     |                                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]    --> src/main.rs:179:9
[INFO] [stdout]     |
[INFO] [stdout] 179 |         address: u8,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]    --> src/main.rs:180:9
[INFO] [stdout]     |
[INFO] [stdout] 180 |         bytes: &[u8],
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buffer`
[INFO] [stdout]    --> src/main.rs:181:9
[INFO] [stdout]     |
[INFO] [stdout] 181 |         buffer: &mut [u8],
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]    --> src/main.rs:188:9
[INFO] [stdout]     |
[INFO] [stdout] 188 |         address: u8,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]    --> src/main.rs:189:9
[INFO] [stdout]     |
[INFO] [stdout] 189 |         bytes: B,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buffer`
[INFO] [stdout]    --> src/main.rs:190:9
[INFO] [stdout]     |
[INFO] [stdout] 190 |         buffer: &mut [u8],
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]    --> src/main.rs:200:9
[INFO] [stdout]     |
[INFO] [stdout] 200 |         address: u8,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operations`
[INFO] [stdout]    --> src/main.rs:201:9
[INFO] [stdout]     |
[INFO] [stdout] 201 |         operations: &mut [embedded_hal::i2c::Operation<'a>],
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operations`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]    --> src/main.rs:208:9
[INFO] [stdout]     |
[INFO] [stdout] 208 |         address: u8,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operations`
[INFO] [stdout]    --> src/main.rs:209:9
[INFO] [stdout]     |
[INFO] [stdout] 209 |         operations: O,
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operations`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CommError` is never constructed
[INFO] [stdout]   --> src/main.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct CommError;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `iface` is never read
[INFO] [stdout]    --> src/main.rs:158:5
[INFO] [stdout]     |
[INFO] [stdout] 157 | struct ExampleDevice<I2C> {
[INFO] [stdout]     |        ------------- field in this struct
[INFO] [stdout] 158 |     iface: I2C,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/serial.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |         self.0.transform().read(address, buffer);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let _ = self.0.transform().read(address, buffer);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "b6f6eb613eb11f25c2f035c19d6db58249e3134cc37095f4e020d853b7a0b885", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6f6eb613eb11f25c2f035c19d6db58249e3134cc37095f4e020d853b7a0b885", kill_on_drop: false }`
[INFO] [stdout] b6f6eb613eb11f25c2f035c19d6db58249e3134cc37095f4e020d853b7a0b885
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e2f94e724b2e9d5df434571e5a003b61b2b02eda1abf630aa345880ac91930be
[INFO] running `Command { std: "docker" "start" "-a" "e2f94e724b2e9d5df434571e5a003b61b2b02eda1abf630aa345880ac91930be", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `any`
[INFO] [stderr]   --> src/main.rs:15:11
[INFO] [stderr]    |
[INFO] [stderr] 15 | use std::{any, convert::Infallible, error};
[INFO] [stderr]    |           ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `marker::PhantomData`
[INFO] [stderr]   --> src/main.rs:16:23
[INFO] [stderr]    |
[INFO] [stderr] 16 | use std::{fmt::Debug, marker::PhantomData};
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `anyhow::Error`
[INFO] [stderr]  --> src/serial.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use anyhow::Error;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Flushable`
[INFO] [stderr]   --> src/main.rs:12:16
[INFO] [stderr]    |
[INFO] [stderr] 12 | use graphics::{Flushable, OwnedDrawTargetExt};
[INFO] [stderr]    |                ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/serial.rs:66:12
[INFO] [stderr]    |
[INFO] [stderr] 66 |     fn new(mut transformer: T) -> Self {
[INFO] [stderr]    |            ----^^^^^^^^^^^
[INFO] [stderr]    |            |
[INFO] [stderr]    |            help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]   --> src/serial.rs:84:25
[INFO] [stderr]    |
[INFO] [stderr] 84 |     fn write(&mut self, address: u8, bytes: &[u8]) -> Result<(), Self::Error> {
[INFO] [stderr]    |                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bytes`
[INFO] [stderr]   --> src/serial.rs:84:38
[INFO] [stderr]    |
[INFO] [stderr] 84 |     fn write(&mut self, address: u8, bytes: &[u8]) -> Result<(), Self::Error> {
[INFO] [stderr]    |                                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]   --> src/serial.rs:88:33
[INFO] [stderr]    |
[INFO] [stderr] 88 |     fn write_iter<B>(&mut self, address: u8, bytes: B) -> Result<(), Self::Error>
[INFO] [stderr]    |                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bytes`
[INFO] [stderr]   --> src/serial.rs:88:46
[INFO] [stderr]    |
[INFO] [stderr] 88 |     fn write_iter<B>(&mut self, address: u8, bytes: B) -> Result<(), Self::Error>
[INFO] [stderr]    |                                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]   --> src/serial.rs:97:9
[INFO] [stderr]    |
[INFO] [stderr] 97 |         address: u8,
[INFO] [stderr]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bytes`
[INFO] [stderr]   --> src/serial.rs:98:9
[INFO] [stderr]    |
[INFO] [stderr] 98 |         bytes: &[u8],
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buffer`
[INFO] [stderr]   --> src/serial.rs:99:9
[INFO] [stderr]    |
[INFO] [stderr] 99 |         buffer: &mut [u8],
[INFO] [stderr]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]    --> src/serial.rs:106:9
[INFO] [stderr]     |
[INFO] [stderr] 106 |         address: u8,
[INFO] [stderr]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bytes`
[INFO] [stderr]    --> src/serial.rs:107:9
[INFO] [stderr]     |
[INFO] [stderr] 107 |         bytes: B,
[INFO] [stderr]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buffer`
[INFO] [stderr]    --> src/serial.rs:108:9
[INFO] [stderr]     |
[INFO] [stderr] 108 |         buffer: &mut [u8],
[INFO] [stderr]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]    --> src/serial.rs:118:9
[INFO] [stderr]     |
[INFO] [stderr] 118 |         address: u8,
[INFO] [stderr]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `operations`
[INFO] [stderr]    --> src/serial.rs:119:9
[INFO] [stderr]     |
[INFO] [stderr] 119 |         operations: &mut [embedded_hal::i2c::Operation<'a>],
[INFO] [stderr]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operations`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]    --> src/serial.rs:124:43
[INFO] [stderr]     |
[INFO] [stderr] 124 |     fn transaction_iter<'a, O>(&mut self, address: u8, operations: O) -> Result<(), Self::Error>
[INFO] [stderr]     |                                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `operations`
[INFO] [stderr]    --> src/serial.rs:124:56
[INFO] [stderr]     |
[INFO] [stderr] 124 |     fn transaction_iter<'a, O>(&mut self, address: u8, operations: O) -> Result<(), Self::Error>
[INFO] [stderr]     |                                                        ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operations`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]    --> src/main.rs:162:24
[INFO] [stderr]     |
[INFO] [stderr] 162 |     fn read(&mut self, address: u8, buffer: &mut [u8]) -> std::result::Result<(), Self::Error> {
[INFO] [stderr]     |                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buffer`
[INFO] [stderr]    --> src/main.rs:162:37
[INFO] [stderr]     |
[INFO] [stderr] 162 |     fn read(&mut self, address: u8, buffer: &mut [u8]) -> std::result::Result<(), Self::Error> {
[INFO] [stderr]     |                                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]    --> src/main.rs:166:25
[INFO] [stderr]     |
[INFO] [stderr] 166 |     fn write(&mut self, address: u8, bytes: &[u8]) -> std::result::Result<(), Self::Error> {
[INFO] [stderr]     |                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bytes`
[INFO] [stderr]    --> src/main.rs:166:38
[INFO] [stderr]     |
[INFO] [stderr] 166 |     fn write(&mut self, address: u8, bytes: &[u8]) -> std::result::Result<(), Self::Error> {
[INFO] [stderr]     |                                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]    --> src/main.rs:170:33
[INFO] [stderr]     |
[INFO] [stderr] 170 |     fn write_iter<B>(&mut self, address: u8, bytes: B) -> std::result::Result<(), Self::Error>
[INFO] [stderr]     |                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bytes`
[INFO] [stderr]    --> src/main.rs:170:46
[INFO] [stderr]     |
[INFO] [stderr] 170 |     fn write_iter<B>(&mut self, address: u8, bytes: B) -> std::result::Result<(), Self::Error>
[INFO] [stderr]     |                                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]    --> src/main.rs:179:9
[INFO] [stderr]     |
[INFO] [stderr] 179 |         address: u8,
[INFO] [stderr]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bytes`
[INFO] [stderr]    --> src/main.rs:180:9
[INFO] [stderr]     |
[INFO] [stderr] 180 |         bytes: &[u8],
[INFO] [stderr]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buffer`
[INFO] [stderr]    --> src/main.rs:181:9
[INFO] [stderr]     |
[INFO] [stderr] 181 |         buffer: &mut [u8],
[INFO] [stderr]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]    --> src/main.rs:188:9
[INFO] [stderr]     |
[INFO] [stderr] 188 |         address: u8,
[INFO] [stderr]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bytes`
[INFO] [stderr]    --> src/main.rs:189:9
[INFO] [stderr]     |
[INFO] [stderr] 189 |         bytes: B,
[INFO] [stderr]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buffer`
[INFO] [stderr]    --> src/main.rs:190:9
[INFO] [stderr]     |
[INFO] [stderr] 190 |         buffer: &mut [u8],
[INFO] [stderr]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]    --> src/main.rs:200:9
[INFO] [stderr]     |
[INFO] [stderr] 200 |         address: u8,
[INFO] [stderr]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `operations`
[INFO] [stderr]    --> src/main.rs:201:9
[INFO] [stderr]     |
[INFO] [stderr] 201 |         operations: &mut [embedded_hal::i2c::Operation<'a>],
[INFO] [stderr]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operations`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]    --> src/main.rs:208:9
[INFO] [stderr]     |
[INFO] [stderr] 208 |         address: u8,
[INFO] [stderr]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `operations`
[INFO] [stderr]    --> src/main.rs:209:9
[INFO] [stderr]     |
[INFO] [stderr] 209 |         operations: O,
[INFO] [stderr]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operations`
[INFO] [stderr] 
[INFO] [stderr] warning: struct `CommError` is never constructed
[INFO] [stderr]   --> src/main.rs:25:8
[INFO] [stderr]    |
[INFO] [stderr] 25 | struct CommError;
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `iface` is never read
[INFO] [stderr]    --> src/main.rs:158:5
[INFO] [stderr]     |
[INFO] [stderr] 157 | struct ExampleDevice<I2C> {
[INFO] [stderr]     |        ------------- field in this struct
[INFO] [stderr] 158 |     iface: I2C,
[INFO] [stderr]     |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/serial.rs:79:9
[INFO] [stderr]    |
[INFO] [stderr] 79 |         self.0.transform().read(address, buffer);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 79 |         let _ = self.0.transform().read(address, buffer);
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `owned-transform` (bin "owned-transform" test) generated 38 warnings (run `cargo fix --bin "owned-transform" -p owned-transform --tests` to apply 34 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/owned_transform-e983aa88a319a6ac)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e2f94e724b2e9d5df434571e5a003b61b2b02eda1abf630aa345880ac91930be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2f94e724b2e9d5df434571e5a003b61b2b02eda1abf630aa345880ac91930be", kill_on_drop: false }`
[INFO] [stdout] e2f94e724b2e9d5df434571e5a003b61b2b02eda1abf630aa345880ac91930be
