[INFO] fetching crate i2cdev2 0.4.0...
[INFO] testing i2cdev2-0.4.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate i2cdev2 0.4.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate i2cdev2 0.4.0
[INFO] finished tweaking crates.io crate i2cdev2 0.4.0
[INFO] tweaked toml for crates.io crate i2cdev2 0.4.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate i2cdev2 0.4.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 58 packages to latest compatible versions
[INFO] [stderr]       Adding bitflags v1.3.2 (available: v2.9.4)
[INFO] [stderr]       Adding docopt v0.8.3 (available: v1.1.1)
[INFO] [stderr]       Adding nix v0.11.1 (available: v0.30.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded utf8-ranges v1.0.5
[INFO] [stderr]   Downloaded cargo_metadata v0.14.2
[INFO] [stderr]   Downloaded cargo-platform v0.1.9
[INFO] [stderr]   Downloaded thread_local v0.3.6
[INFO] [stderr]   Downloaded strsim v0.6.0
[INFO] [stderr]   Downloaded skeptic v0.13.7
[INFO] [stderr]   Downloaded ucd-util v0.1.10
[INFO] [stderr]   Downloaded aho-corasick v0.6.10
[INFO] [stderr]   Downloaded docopt v0.8.3
[INFO] [stderr]   Downloaded regex v0.2.11
[INFO] [stderr]   Downloaded nix v0.11.1
[INFO] [stderr]   Downloaded regex-syntax v0.5.6
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d73e4cef1d8b4532e0374f33ad31552bf5a156e6be8d37a31863a0f5fc1cf367
[INFO] running `Command { std: "docker" "start" "-a" "d73e4cef1d8b4532e0374f33ad31552bf5a156e6be8d37a31863a0f5fc1cf367", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d73e4cef1d8b4532e0374f33ad31552bf5a156e6be8d37a31863a0f5fc1cf367", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d73e4cef1d8b4532e0374f33ad31552bf5a156e6be8d37a31863a0f5fc1cf367", kill_on_drop: false }`
[INFO] [stdout] d73e4cef1d8b4532e0374f33ad31552bf5a156e6be8d37a31863a0f5fc1cf367
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d00b2b11518ff27ae87f6251556298d500e86439ae0ce3fef3dca2ce02d086e1
[INFO] running `Command { std: "docker" "start" "-a" "d00b2b11518ff27ae87f6251556298d500e86439ae0ce3fef3dca2ce02d086e1", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling camino v1.2.1
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling bitflags v2.9.4
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling cfg-if v1.0.3
[INFO] [stderr]    Compiling ryu v1.0.20
[INFO] [stderr]    Compiling itoa v1.0.15
[INFO] [stderr]    Compiling pulldown-cmark v0.9.6
[INFO] [stderr]    Compiling unicase v2.8.1
[INFO] [stderr]    Compiling fastrand v2.3.0
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling glob v0.3.3
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling bytecount v0.6.9
[INFO] [stderr]    Compiling nix v0.11.1
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling tempfile v3.23.0
[INFO] [stderr]    Compiling semver v1.0.27
[INFO] [stderr]    Compiling cargo-platform v0.1.9
[INFO] [stderr]    Compiling cargo_metadata v0.14.2
[INFO] [stderr]    Compiling skeptic v0.13.7
[INFO] [stderr]    Compiling i2cdev2 v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/ffi.rs:437:37
[INFO] [stdout]     |
[INFO] [stdout] 437 |                           -> Result<(c_int), I2CError> {
[INFO] [stdout]     |                                     ^     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 437 -                           -> Result<(c_int), I2CError> {
[INFO] [stdout] 437 +                           -> Result<c_int, I2CError> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/ffi.rs:447:62
[INFO] [stdout]     |
[INFO] [stdout] 447 | ...                   msgs: &mut Vec<I2CMsg>) -> Result<(i32), I2CError> {
[INFO] [stdout]     |                                                         ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 447 -                            msgs: &mut Vec<I2CMsg>) -> Result<(i32), I2CError> {
[INFO] [stdout] 447 +                            msgs: &mut Vec<I2CMsg>) -> Result<i32, I2CError> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/linux.rs:84:32
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]    |                                ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn cause(&self) -> Option<&dyn Error> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/linux.rs:79:43
[INFO] [stdout]    |
[INFO] [stdout] 79 |             LinuxI2CError::Io(ref e) => e.description(),
[INFO] [stdout]    |                                           ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/linux.rs:80:44
[INFO] [stdout]    |
[INFO] [stdout] 80 |             LinuxI2CError::Nix(ref e) => e.description(),
[INFO] [stdout]    |                                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.79s
[INFO] running `Command { std: "docker" "inspect" "d00b2b11518ff27ae87f6251556298d500e86439ae0ce3fef3dca2ce02d086e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d00b2b11518ff27ae87f6251556298d500e86439ae0ce3fef3dca2ce02d086e1", kill_on_drop: false }`
[INFO] [stdout] d00b2b11518ff27ae87f6251556298d500e86439ae0ce3fef3dca2ce02d086e1
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f07b6b856193cf9f3b0a2e5fa550102a037ebdc4b2c81fdcfa2b3c719ba272d0
[INFO] running `Command { std: "docker" "start" "-a" "f07b6b856193cf9f3b0a2e5fa550102a037ebdc4b2c81fdcfa2b3c719ba272d0", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling camino v1.2.1
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling bytecount v0.6.9
[INFO] [stderr]    Compiling glob v0.3.3
[INFO] [stderr]    Compiling ucd-util v0.1.10
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling utf8-ranges v1.0.5
[INFO] [stderr]    Compiling strsim v0.6.0
[INFO] [stderr]    Compiling tempfile v3.23.0
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling semver v1.0.27
[INFO] [stderr]    Compiling cargo-platform v0.1.9
[INFO] [stderr]    Compiling docopt v0.8.3
[INFO] [stderr]    Compiling cargo_metadata v0.14.2
[INFO] [stderr]    Compiling skeptic v0.13.7
[INFO] [stderr]    Compiling i2cdev2 v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/ffi.rs:437:37
[INFO] [stdout]     |
[INFO] [stdout] 437 |                           -> Result<(c_int), I2CError> {
[INFO] [stdout]     |                                     ^     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 437 -                           -> Result<(c_int), I2CError> {
[INFO] [stdout] 437 +                           -> Result<c_int, I2CError> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/ffi.rs:447:62
[INFO] [stdout]     |
[INFO] [stdout] 447 | ...                   msgs: &mut Vec<I2CMsg>) -> Result<(i32), I2CError> {
[INFO] [stdout]     |                                                         ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 447 -                            msgs: &mut Vec<I2CMsg>) -> Result<(i32), I2CError> {
[INFO] [stdout] 447 +                            msgs: &mut Vec<I2CMsg>) -> Result<i32, I2CError> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/linux.rs:84:32
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]    |                                ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn cause(&self) -> Option<&dyn Error> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/ffi.rs:437:37
[INFO] [stdout]     |
[INFO] [stdout] 437 |                           -> Result<(c_int), I2CError> {
[INFO] [stdout]     |                                     ^     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 437 -                           -> Result<(c_int), I2CError> {
[INFO] [stdout] 437 +                           -> Result<c_int, I2CError> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/ffi.rs:447:62
[INFO] [stdout]     |
[INFO] [stdout] 447 | ...                   msgs: &mut Vec<I2CMsg>) -> Result<(i32), I2CError> {
[INFO] [stdout]     |                                                         ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 447 -                            msgs: &mut Vec<I2CMsg>) -> Result<(i32), I2CError> {
[INFO] [stdout] 447 +                            msgs: &mut Vec<I2CMsg>) -> Result<i32, I2CError> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/linux.rs:79:43
[INFO] [stdout]    |
[INFO] [stdout] 79 |             LinuxI2CError::Io(ref e) => e.description(),
[INFO] [stdout]    |                                           ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/linux.rs:80:44
[INFO] [stdout]    |
[INFO] [stdout] 80 |             LinuxI2CError::Nix(ref e) => e.description(),
[INFO] [stdout]    |                                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/linux.rs:84:32
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]    |                                ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn cause(&self) -> Option<&dyn Error> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/linux.rs:79:43
[INFO] [stdout]    |
[INFO] [stdout] 79 |             LinuxI2CError::Io(ref e) => e.description(),
[INFO] [stdout]    |                                           ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/linux.rs:80:44
[INFO] [stdout]    |
[INFO] [stdout] 80 |             LinuxI2CError::Nix(ref e) => e.description(),
[INFO] [stdout]    |                                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `i2cdev`
[INFO] [stdout]  --> examples/pca9956b.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | extern crate i2cdev;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `i2cdev`
[INFO] [stdout]   --> examples/sensors.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | extern crate i2cdev;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `i2cdev`
[INFO] [stdout]   --> examples/nunchuck.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | extern crate i2cdev;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `taret_os`
[INFO] [stdout]   --> examples/nunchuck.rs:22:32
[INFO] [stdout]    |
[INFO] [stdout] 22 | #[cfg(any(target_os = "linux", taret_os = "android"))]
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(taret_os, values("android"))'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(taret_os, values(\"android\"))");` to the top of the `build.rs`
[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] help: there is a config with a similar name and value
[INFO] [stdout]    |
[INFO] [stdout] 22 | #[cfg(any(target_os = "linux", target_os = "android"))]
[INFO] [stdout]    |                                   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> examples/nunchuck.rs:133:13
[INFO] [stdout]     |
[INFO] [stdout] 133 |             try!(
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> examples/nunchuck.rs:56:36
[INFO] [stdout]    |
[INFO] [stdout] 56 |         fn cause(&self) -> Option<&Error> {
[INFO] [stdout]    |                                    ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 56 |         fn cause(&self) -> Option<&dyn Error> {
[INFO] [stdout]    |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Error` not found for `T`
[INFO] [stdout]    --> examples/nunchuck.rs:108:57
[INFO] [stdout]     |
[INFO] [stdout] 108 |         pub fn new(i2cdev: T) -> Result<Nunchuck<T>, T::Error> {
[INFO] [stdout]     |                                                         ^^^^^ associated type `Error` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Error` not found for `T`
[INFO] [stdout]    --> examples/nunchuck.rs:120:49
[INFO] [stdout]     |
[INFO] [stdout] 120 |         pub fn init(&mut self) -> Result<(), T::Error> {
[INFO] [stdout]     |                                                 ^^^^^ associated type `Error` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Error` not found for `T`
[INFO] [stdout]    --> examples/nunchuck.rs:129:76
[INFO] [stdout]     |
[INFO] [stdout] 129 |         pub fn read(&mut self) -> Result<NunchuckReading, NunchuckError<T::Error>> {
[INFO] [stdout]     |                                                                            ^^^^^ associated type `Error` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `LinuxI2CDevice`
[INFO] [stdout]    --> examples/nunchuck.rs:224:18
[INFO] [stdout]     |
[INFO] [stdout] 224 |     let i2cdev = LinuxI2CDevice::new(device, NUNCHUCK_SLAVE_ADDR).unwrap();
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^ use of undeclared type `LinuxI2CDevice`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0220, E0433, E0463.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0220`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `i2cdev2` (example "pca9956b") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> examples/sensors.rs:176:17
[INFO] [stdout]     |
[INFO] [stdout] 176 |                 try!(
[INFO] [stdout]     |                 ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `i2cdev2` (example "nunchuck") due to 5 previous errors; 3 warnings emitted
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `LinuxI2CDevice`
[INFO] [stdout]    --> examples/sensors.rs:485:27
[INFO] [stdout]     |
[INFO] [stdout] 485 |     let mpl115a2_i2cdev = LinuxI2CDevice::new(device, MPL115A2_I2C_ADDR).unwrap();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^ use of undeclared type `LinuxI2CDevice`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `LinuxI2CDevice`
[INFO] [stdout]    --> examples/sensors.rs:486:26
[INFO] [stdout]     |
[INFO] [stdout] 486 |     let adxl345_i2cdev = LinuxI2CDevice::new(device, 0x53).unwrap();
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^ use of undeclared type `LinuxI2CDevice`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0463.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `i2cdev2` (example "sensors") due to 3 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "f07b6b856193cf9f3b0a2e5fa550102a037ebdc4b2c81fdcfa2b3c719ba272d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f07b6b856193cf9f3b0a2e5fa550102a037ebdc4b2c81fdcfa2b3c719ba272d0", kill_on_drop: false }`
[INFO] [stdout] f07b6b856193cf9f3b0a2e5fa550102a037ebdc4b2c81fdcfa2b3c719ba272d0
