[INFO] cloning repository https://github.com/hogehogei/milkv-duo-rust-bme280
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hogehogei/milkv-duo-rust-bme280" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhogehogei%2Fmilkv-duo-rust-bme280", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhogehogei%2Fmilkv-duo-rust-bme280'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6b495d25a4f4f1f704e11d86abe4da013b885388
[INFO] checking hogehogei/milkv-duo-rust-bme280 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhogehogei%2Fmilkv-duo-rust-bme280" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hogehogei/milkv-duo-rust-bme280 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hogehogei/milkv-duo-rust-bme280
[INFO] finished tweaking git repo https://github.com/hogehogei/milkv-duo-rust-bme280
[INFO] tweaked toml for git repo https://github.com/hogehogei/milkv-duo-rust-bme280 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/hogehogei/milkv-duo-rust-bme280 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "2aeea93ff2a9daa2e2847ec4f1137a53e883eff37770cfdbbeedb8e0e2ecf605", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2aeea93ff2a9daa2e2847ec4f1137a53e883eff37770cfdbbeedb8e0e2ecf605", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2aeea93ff2a9daa2e2847ec4f1137a53e883eff37770cfdbbeedb8e0e2ecf605", kill_on_drop: false }`
[INFO] [stdout] 2aeea93ff2a9daa2e2847ec4f1137a53e883eff37770cfdbbeedb8e0e2ecf605
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e67aca4301a1f49869c700db639475d9975318191a41f12df2cc06f2d7416d52
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[INFO] [stderr]     Checking milkv-duo-rust-bme280 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/bme280.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/bme280.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/bme280.rs:169:30
[INFO] [stdout]     |
[INFO] [stdout] 169 |                    .map_err(|e| {
[INFO] [stdout]     |                              ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/bme280.rs:169:30
[INFO] [stdout]     |
[INFO] [stdout] 169 |                    .map_err(|e| {
[INFO] [stdout]     |                              ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/bme280.rs:178:48
[INFO] [stdout]     |
[INFO] [stdout] 178 | ...                   .map_err(|e| {
[INFO] [stdout]     |                                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/bme280.rs:178:48
[INFO] [stdout]     |
[INFO] [stdout] 178 | ...                   .map_err(|e| {
[INFO] [stdout]     |                                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/bme280.rs:201:23
[INFO] [stdout]     |
[INFO] [stdout] 201 |             .map_err(|e| BME280ErrorType::InitializeError { backtrace: Backtrace::force_capture() })?;
[INFO] [stdout]     |                       ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/bme280.rs:201:23
[INFO] [stdout]     |
[INFO] [stdout] 201 |             .map_err(|e| BME280ErrorType::InitializeError { backtrace: Backtrace::force_capture() })?;
[INFO] [stdout]     |                       ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/bme280.rs:211:23
[INFO] [stdout]     |
[INFO] [stdout] 211 |             .map_err(|e| BME280ErrorType::InitializeError { backtrace: Backtrace::force_capture() })?;
[INFO] [stdout]     |                       ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/bme280.rs:219:23
[INFO] [stdout]     |
[INFO] [stdout] 219 |             .map_err(|e| BME280ErrorType::InitializeError { backtrace: Backtrace::force_capture() })?;
[INFO] [stdout]     |                       ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/bme280.rs:211:23
[INFO] [stdout]     |
[INFO] [stdout] 211 |             .map_err(|e| BME280ErrorType::InitializeError { backtrace: Backtrace::force_capture() })?;
[INFO] [stdout]     |                       ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/bme280.rs:219:23
[INFO] [stdout]     |
[INFO] [stdout] 219 |             .map_err(|e| BME280ErrorType::InitializeError { backtrace: Backtrace::force_capture() })?;
[INFO] [stdout]     |                       ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/main.rs:94:10
[INFO] [stdout]    |
[INFO] [stdout] 94 |     for (i, notification) in connection.iter().enumerate() {
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/main.rs:96:20
[INFO] [stdout]    |
[INFO] [stdout] 96 |             Ok(ref t) => {
[INFO] [stdout]    |                    ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:99:21
[INFO] [stdout]    |
[INFO] [stdout] 99 |             Err(ref e) => {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/main.rs:94:10
[INFO] [stdout]    |
[INFO] [stdout] 94 |     for (i, notification) in connection.iter().enumerate() {
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/main.rs:96:20
[INFO] [stdout]    |
[INFO] [stdout] 96 |             Ok(ref t) => {
[INFO] [stdout]    |                    ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:99:21
[INFO] [stdout]    |
[INFO] [stdout] 99 |             Err(ref e) => {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `slave_address` is never read
[INFO] [stdout]   --> src/bme280.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub struct BME280<T: I2CDevice>
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 54 |     slave_address: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `slave_address` is never read
[INFO] [stdout]   --> src/bme280.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub struct BME280<T: I2CDevice>
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 54 |     slave_address: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.64s
[INFO] running `Command { std: "docker" "inspect" "e67aca4301a1f49869c700db639475d9975318191a41f12df2cc06f2d7416d52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e67aca4301a1f49869c700db639475d9975318191a41f12df2cc06f2d7416d52", kill_on_drop: false }`
[INFO] [stdout] e67aca4301a1f49869c700db639475d9975318191a41f12df2cc06f2d7416d52