[INFO] fetching crate i2cdev2 0.4.0...
[INFO] testing i2cdev2-0.4.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate i2cdev2 0.4.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate i2cdev2 0.4.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded strsim v0.6.0
[INFO] [stderr]   Downloaded docopt v0.8.3
[INFO] [stderr]   Downloaded nix v0.11.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 400ea9248bb029f069bb96583718e47e4283d105de507216d3bd29f1f9e2a07c
[INFO] running `Command { std: "docker" "start" "-a" "400ea9248bb029f069bb96583718e47e4283d105de507216d3bd29f1f9e2a07c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "400ea9248bb029f069bb96583718e47e4283d105de507216d3bd29f1f9e2a07c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "400ea9248bb029f069bb96583718e47e4283d105de507216d3bd29f1f9e2a07c", kill_on_drop: false }`
[INFO] [stdout] 400ea9248bb029f069bb96583718e47e4283d105de507216d3bd29f1f9e2a07c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0326af0f558c931bc07ed24b366cd9fe11552c86631178d4918774dc0c6c929c
[INFO] running `Command { std: "docker" "start" "-a" "0326af0f558c931bc07ed24b366cd9fe11552c86631178d4918774dc0c6c929c", kill_on_drop: false }`
[INFO] [stderr]    Compiling camino v1.0.7
[INFO] [stderr]    Compiling semver v1.0.7
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling pulldown-cmark v0.9.1
[INFO] [stderr]    Compiling bytecount v0.6.2
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling cargo-platform v0.1.2
[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]    = note: `#[warn(bare_trait_objects)]` on by default
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 84 -     fn cause(&self) -> Option<&Error> {
[INFO] [stdout] 84 +     fn cause(&self) -> Option<&dyn Error> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `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 associated function `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: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.50s
[INFO] running `Command { std: "docker" "inspect" "0326af0f558c931bc07ed24b366cd9fe11552c86631178d4918774dc0c6c929c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0326af0f558c931bc07ed24b366cd9fe11552c86631178d4918774dc0c6c929c", kill_on_drop: false }`
[INFO] [stdout] 0326af0f558c931bc07ed24b366cd9fe11552c86631178d4918774dc0c6c929c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a60c2d70259e2002c0e93fedc548114f98d02257e00202bb70dfb6b894071619
[INFO] running `Command { std: "docker" "start" "-a" "a60c2d70259e2002c0e93fedc548114f98d02257e00202bb70dfb6b894071619", kill_on_drop: false }`
[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]    = note: `#[warn(bare_trait_objects)]` on by default
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 84 -     fn cause(&self) -> Option<&Error> {
[INFO] [stdout] 84 +     fn cause(&self) -> Option<&dyn Error> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `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 associated function `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: 5 warnings emitted
[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[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] error[E0405]: cannot find trait `I2CDevice` in this scope
[INFO] [stdout]    --> examples/sensors.rs:158:44
[INFO] [stdout]     |
[INFO] [stdout] 158 |         pub struct ADXL345Accelerometer<T: I2CDevice + Sized> {
[INFO] [stdout]     |                                            ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `I2CDevice` in this scope
[INFO] [stdout]    --> examples/sensors.rs:164:16
[INFO] [stdout]     |
[INFO] [stdout] 164 |             T: I2CDevice + Sized,
[INFO] [stdout]     |                ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `I2CDevice` in this scope
[INFO] [stdout]    --> examples/sensors.rs:204:16
[INFO] [stdout]     |
[INFO] [stdout] 204 |             T: I2CDevice + Sized,
[INFO] [stdout]     |                ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `I2CDevice` in this scope
[INFO] [stdout]    --> examples/sensors.rs:245:52
[INFO] [stdout]     |
[INFO] [stdout] 245 |         pub struct MPL115A2BarometerThermometer<T: I2CDevice + Sized> {
[INFO] [stdout]     |                                                    ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `I2CDevice` in this scope
[INFO] [stdout]    --> examples/sensors.rs:304:30
[INFO] [stdout]     |
[INFO] [stdout] 304 |                 i2cdev: &mut I2CDevice<Error = E>,
[INFO] [stdout]     |                              ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `I2CDevice` in this scope
[INFO] [stdout]    --> examples/sensors.rs:321:30
[INFO] [stdout]     |
[INFO] [stdout] 321 |                 i2cdev: &mut I2CDevice<Error = E>,
[INFO] [stdout]     |                              ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `I2CDevice` in this scope
[INFO] [stdout]    --> examples/sensors.rs:363:16
[INFO] [stdout]     |
[INFO] [stdout] 363 |             T: I2CDevice + Sized,
[INFO] [stdout]     |                ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `I2CDevice` in this scope
[INFO] [stdout]    --> examples/sensors.rs:377:16
[INFO] [stdout]     |
[INFO] [stdout] 377 |             T: I2CDevice + Sized,
[INFO] [stdout]     |                ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `I2CDevice` in this scope
[INFO] [stdout]    --> examples/sensors.rs:389:16
[INFO] [stdout]     |
[INFO] [stdout] 389 |             T: I2CDevice + Sized,
[INFO] [stdout]     |                ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[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] [stdout] error: aborting due to 12 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0405, E0412, E0433, E0463.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0405`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `i2cdev2` due to 13 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `LinuxI2CBus`
[INFO] [stdout]   --> examples/pca9956b.rs:43:25
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let mut bus = match LinuxI2CBus::new(path) {
[INFO] [stdout]    |                         ^^^^^^^^^^^ use of undeclared type `LinuxI2CBus`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `I2CMsg`
[INFO] [stdout]   --> examples/pca9956b.rs:59:15
[INFO] [stdout]    |
[INFO] [stdout] 59 |     msgs.push(I2CMsg::new(ADDR, &mut dataw));
[INFO] [stdout]    |               ^^^^^^ use of undeclared type `I2CMsg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `I2CMsg`
[INFO] [stdout]   --> examples/pca9956b.rs:60:15
[INFO] [stdout]    |
[INFO] [stdout] 60 |     msgs.push(I2CMsg::new(ADDR, &mut data));
[INFO] [stdout]    |               ^^^^^^ use of undeclared type `I2CMsg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `I2CMsg` in this scope
[INFO] [stdout]   --> examples/pca9956b.rs:58:23
[INFO] [stdout]    |
[INFO] [stdout] 58 |     let mut msgs: Vec<I2CMsg> = Vec::new();
[INFO] [stdout]    |                       ^^^^^^ not found in this scope
[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] 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] error[E0405]: cannot find trait `I2CDevice` in this scope
[INFO] [stdout]   --> examples/nunchuck.rs:95:28
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub struct Nunchuck<T: I2CDevice> {
[INFO] [stdout]    |                            ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `I2CDevice` in this scope
[INFO] [stdout]    --> examples/nunchuck.rs:101:12
[INFO] [stdout]     |
[INFO] [stdout] 101 |         T: I2CDevice,
[INFO] [stdout]     |            ^^^^^^^^^ not found in this scope
[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] error: aborting due to 4 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0405, E0433, E0463.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0405`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0433, E0463.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[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: 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]    = note: `#[warn(bare_trait_objects)]` on by default
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 84 -     fn cause(&self) -> Option<&Error> {
[INFO] [stdout] 84 +     fn cause(&self) -> Option<&dyn Error> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `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 associated function `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: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "a60c2d70259e2002c0e93fedc548114f98d02257e00202bb70dfb6b894071619", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a60c2d70259e2002c0e93fedc548114f98d02257e00202bb70dfb6b894071619", kill_on_drop: false }`
[INFO] [stdout] a60c2d70259e2002c0e93fedc548114f98d02257e00202bb70dfb6b894071619