[INFO] fetching crate tlv493d_a1b6_raspberry 0.3.1...
[INFO] testing tlv493d_a1b6_raspberry-0.3.1 against 1.100.0-beta.1 for beta-1.100-2
[INFO] extracting crate tlv493d_a1b6_raspberry 0.3.1 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate tlv493d_a1b6_raspberry 0.3.1
[INFO] finished tweaking crates.io crate tlv493d_a1b6_raspberry 0.3.1
[INFO] tweaked toml for crates.io crate tlv493d_a1b6_raspberry 0.3.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tlv493d_a1b6_raspberry 0.3.1 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate tlv493d_a1b6_raspberry 0.3.1 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" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] b351c18aeb578b888d06c22f8f6df35bde2afe600e43c73c5ba2b9735fae56ff
[INFO] running `Command { std: "docker" "start" "b351c18aeb578b888d06c22f8f6df35bde2afe600e43c73c5ba2b9735fae56ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b351c18aeb578b888d06c22f8f6df35bde2afe600e43c73c5ba2b9735fae56ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b351c18aeb578b888d06c22f8f6df35bde2afe600e43c73c5ba2b9735fae56ff" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b351c18aeb578b888d06c22f8f6df35bde2afe600e43c73c5ba2b9735fae56ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b351c18aeb578b888d06c22f8f6df35bde2afe600e43c73c5ba2b9735fae56ff" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling nb v1.0.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling spin_sleep v1.1.1
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling embedded-hal v1.0.0-alpha.5
[INFO] [stderr]    Compiling embedded-hal v0.2.7
[INFO] [stderr]    Compiling rppal v0.13.1
[INFO] [stderr]    Compiling tlv493d_a1b6_raspberry v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition value: `std`
[INFO] [stdout]  --> src/lib.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[cfg(feature = "std")]
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]   |
[INFO] [stdout]   = note: no expected values for `feature`
[INFO] [stdout]   = help: consider adding `std` as a feature in `Cargo.toml`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]   = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `std`
[INFO] [stdout]    --> src/lib.rs:107:12
[INFO] [stdout]     |
[INFO] [stdout] 107 | #[cfg_attr(feature = "std", derive(thiserror::Error))] 
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `std` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `std`
[INFO] [stdout]    --> src/lib.rs:110:16
[INFO] [stdout]     |
[INFO] [stdout] 110 |     #[cfg_attr(feature = "std", error("No device found with specified i2c bus and address"))] 
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `std` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `std`
[INFO] [stdout]    --> src/lib.rs:114:16
[INFO] [stdout]     |
[INFO] [stdout] 114 |     #[cfg_attr(feature = "std", error("Device ADC lockup, reset required"))] 
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `std` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `std`
[INFO] [stdout]    --> src/lib.rs:118:16
[INFO] [stdout]     |
[INFO] [stdout] 118 |     #[cfg_attr(feature = "std", error("Sensor I2C address must be 0x5E or 0x1F"))]  /// Added ///
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `std` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `std`
[INFO] [stdout]    --> src/lib.rs:122:16
[INFO] [stdout]     |
[INFO] [stdout] 122 |     #[cfg_attr(feature = "std", error("I2C device error: {0:?}"))] 
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `std` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.18s
[INFO] running `Command { std: "docker" "inspect" "b351c18aeb578b888d06c22f8f6df35bde2afe600e43c73c5ba2b9735fae56ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b351c18aeb578b888d06c22f8f6df35bde2afe600e43c73c5ba2b9735fae56ff" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] warning: unexpected `cfg` condition value: `std`
[INFO] [stdout]  --> src/lib.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[cfg(feature = "std")]
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]   |
[INFO] [stdout]   = note: no expected values for `feature`
[INFO] [stdout]   = help: consider adding `std` as a feature in `Cargo.toml`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]   = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `std`
[INFO] [stdout]    --> src/lib.rs:107:12
[INFO] [stdout]     |
[INFO] [stdout] 107 | #[cfg_attr(feature = "std", derive(thiserror::Error))] 
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `std` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `std`
[INFO] [stdout]    --> src/lib.rs:110:16
[INFO] [stdout]     |
[INFO] [stdout] 110 |     #[cfg_attr(feature = "std", error("No device found with specified i2c bus and address"))] 
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `std` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `std`
[INFO] [stdout]    --> src/lib.rs:114:16
[INFO] [stdout]     |
[INFO] [stdout] 114 |     #[cfg_attr(feature = "std", error("Device ADC lockup, reset required"))] 
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `std` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `std`
[INFO] [stdout]    --> src/lib.rs:118:16
[INFO] [stdout]     |
[INFO] [stdout] 118 |     #[cfg_attr(feature = "std", error("Sensor I2C address must be 0x5E or 0x1F"))]  /// Added ///
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `std` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `std`
[INFO] [stdout]    --> src/lib.rs:122:16
[INFO] [stdout]     |
[INFO] [stdout] 122 |     #[cfg_attr(feature = "std", error("I2C device error: {0:?}"))] 
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `std` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tlv493d_a1b6_raspberry v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition value: `std`
[INFO] [stdout]  --> src/lib.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[cfg(feature = "std")]
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]   |
[INFO] [stdout]   = note: no expected values for `feature`
[INFO] [stdout]   = help: consider adding `std` as a feature in `Cargo.toml`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]   = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `std`
[INFO] [stdout]    --> src/lib.rs:107:12
[INFO] [stdout]     |
[INFO] [stdout] 107 | #[cfg_attr(feature = "std", derive(thiserror::Error))] 
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `std` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `std`
[INFO] [stdout]    --> src/lib.rs:110:16
[INFO] [stdout]     |
[INFO] [stdout] 110 |     #[cfg_attr(feature = "std", error("No device found with specified i2c bus and address"))] 
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `std` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `std`
[INFO] [stdout]    --> src/lib.rs:114:16
[INFO] [stdout]     |
[INFO] [stdout] 114 |     #[cfg_attr(feature = "std", error("Device ADC lockup, reset required"))] 
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `std` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `std`
[INFO] [stdout]    --> src/lib.rs:118:16
[INFO] [stdout]     |
[INFO] [stdout] 118 |     #[cfg_attr(feature = "std", error("Sensor I2C address must be 0x5E or 0x1F"))]  /// Added ///
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `std` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `std`
[INFO] [stdout]    --> src/lib.rs:122:16
[INFO] [stdout]     |
[INFO] [stdout] 122 |     #[cfg_attr(feature = "std", error("I2C device error: {0:?}"))] 
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `std` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "b351c18aeb578b888d06c22f8f6df35bde2afe600e43c73c5ba2b9735fae56ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b351c18aeb578b888d06c22f8f6df35bde2afe600e43c73c5ba2b9735fae56ff" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unexpected `cfg` condition value: `std`
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> src/lib.rs:6:7
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 6 | #[cfg(feature = "std")]
[INFO] [stdout] 
[INFO] [stderr]   |       ^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stderr]   |
[INFO] [stderr]   = note: no expected values for `feature`
[INFO] [stderr]   = help: consider adding `std` as a feature in `Cargo.toml`
[INFO] [stderr]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]   = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition value: `std`
[INFO] [stderr]    --> src/lib.rs:107:12
[INFO] [stderr]     |
[INFO] [stderr] 107 | #[cfg_attr(feature = "std", derive(thiserror::Error))] 
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stderr]     |
[INFO] [stderr]     = note: no expected values for `feature`
[INFO] [stderr]     = help: consider adding `std` as a feature in `Cargo.toml`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition value: `std`
[INFO] [stderr]    --> src/lib.rs:110:16
[INFO] [stderr]     |
[INFO] [stderr] 110 |     #[cfg_attr(feature = "std", error("No device found with specified i2c bus and address"))] 
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stderr]     |
[INFO] [stderr]     = note: no expected values for `feature`
[INFO] [stderr]     = help: consider adding `std` as a feature in `Cargo.toml`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition value: `std`
[INFO] [stderr]    --> src/lib.rs:114:16
[INFO] [stderr]     |
[INFO] [stderr] 114 |     #[cfg_attr(feature = "std", error("Device ADC lockup, reset required"))] 
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stderr]     |
[INFO] [stderr]     = note: no expected values for `feature`
[INFO] [stderr]     = help: consider adding `std` as a feature in `Cargo.toml`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition value: `std`
[INFO] [stderr]    --> src/lib.rs:118:16
[INFO] [stderr]     |
[INFO] [stderr] 118 |     #[cfg_attr(feature = "std", error("Sensor I2C address must be 0x5E or 0x1F"))]  /// Added ///
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stderr]     |
[INFO] [stderr]     = note: no expected values for `feature`
[INFO] [stderr]     = help: consider adding `std` as a feature in `Cargo.toml`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition value: `std`
[INFO] [stderr]    --> src/lib.rs:122:16
[INFO] [stderr]     |
[INFO] [stderr] 122 |     #[cfg_attr(feature = "std", error("I2C device error: {0:?}"))] 
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stderr]     |
[INFO] [stderr]     = note: no expected values for `feature`
[INFO] [stderr]     = help: consider adding `std` as a feature in `Cargo.toml`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: `tlv493d_a1b6_raspberry` (lib) generated 6 warnings
[INFO] [stderr] warning: `tlv493d_a1b6_raspberry` (lib test) generated 6 warnings (6 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/build/tlv493d_a1b6_raspberry/32680fe3a3675804/out/tlv493d_a1b6_raspberry-32680fe3a3675804)
[INFO] [stderr]      Running unittests src/bin/loop.rs (/opt/rustwide/target/debug/build/tlv493d_a1b6_raspberry/2f8697dc8b56ce42/out/loop-2f8697dc8b56ce42)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tlv493d_a1b6_raspberry
[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] [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" "b351c18aeb578b888d06c22f8f6df35bde2afe600e43c73c5ba2b9735fae56ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b351c18aeb578b888d06c22f8f6df35bde2afe600e43c73c5ba2b9735fae56ff", kill_on_drop: false }`
[INFO] [stdout] b351c18aeb578b888d06c22f8f6df35bde2afe600e43c73c5ba2b9735fae56ff
