[INFO] fetching crate mpu6050 0.1.4...
[INFO] testing mpu6050-0.1.4 against 1.55.0 for beta-1.56-1
[INFO] extracting crate mpu6050 0.1.4 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate mpu6050 0.1.4 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-12/source/.cargo/config
[INFO] started tweaking crates.io crate mpu6050 0.1.4
[INFO] finished tweaking crates.io crate mpu6050 0.1.4
[INFO] tweaked toml for crates.io crate mpu6050 0.1.4 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate mpu6050 0.1.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded simba v0.3.1
[INFO] [stderr]   Downloaded nalgebra v0.24.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6cf9c7a5daac3daa181537a08a62913e92283776f934fa5644df54bf2b009a99
[INFO] running `Command { std: "docker" "start" "-a" "6cf9c7a5daac3daa181537a08a62913e92283776f934fa5644df54bf2b009a99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6cf9c7a5daac3daa181537a08a62913e92283776f934fa5644df54bf2b009a99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cf9c7a5daac3daa181537a08a62913e92283776f934fa5644df54bf2b009a99", kill_on_drop: false }`
[INFO] [stdout] 6cf9c7a5daac3daa181537a08a62913e92283776f934fa5644df54bf2b009a99
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e36f7ec73ab3264b334fed3406b7bb28fbffeed8384b2ad2c3eaf0e36ffeb151
[INFO] running `Command { std: "docker" "start" "-a" "e36f7ec73ab3264b334fed3406b7bb28fbffeed8384b2ad2c3eaf0e36ffeb151", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling nb v1.0.0
[INFO] [stderr]    Compiling paste v1.0.4
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling embedded-hal v0.2.4
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling approx v0.4.0
[INFO] [stderr]    Compiling num-complex v0.3.1
[INFO] [stderr]    Compiling simba v0.3.1
[INFO] [stderr]    Compiling nalgebra v0.24.1
[INFO] [stderr]    Compiling mpu6050 v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.29s
[INFO] running `Command { std: "docker" "inspect" "e36f7ec73ab3264b334fed3406b7bb28fbffeed8384b2ad2c3eaf0e36ffeb151", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e36f7ec73ab3264b334fed3406b7bb28fbffeed8384b2ad2c3eaf0e36ffeb151", kill_on_drop: false }`
[INFO] [stdout] e36f7ec73ab3264b334fed3406b7bb28fbffeed8384b2ad2c3eaf0e36ffeb151
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 905b7e1026af8f13e3d2743c8660191840849dea8292a5c73e577f38da8c8cf7
[INFO] running `Command { std: "docker" "start" "-a" "905b7e1026af8f13e3d2743c8660191840849dea8292a5c73e577f38da8c8cf7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling byteorder v1.4.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling ioctl-rs v0.1.6
[INFO] [stderr]    Compiling termios v0.2.2
[INFO] [stderr]    Compiling serial-core v0.4.0
[INFO] [stderr]    Compiling serial-unix v0.4.0
[INFO] [stderr]    Compiling i2cdev v0.4.4
[INFO] [stderr]    Compiling sysfs_gpio v0.5.4
[INFO] [stderr]    Compiling spidev v0.4.0
[INFO] [stderr]    Compiling linux-embedded-hal v0.3.0
[INFO] [stderr]    Compiling mpu6050 v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Bits`
[INFO] [stdout]    --> src/bits.rs:131:24
[INFO] [stdout]     |
[INFO] [stdout] 131 |         let bitstart = Bits::ACCEL_CONFIG_ACCEL_HPF_BIT;
[INFO] [stdout]     |                        ^^^^ use of undeclared type `Bits`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Bits`
[INFO] [stdout]    --> src/bits.rs:132:22
[INFO] [stdout]     |
[INFO] [stdout] 132 |         let length = Bits::ACCEL_CONFIG_ACCEL_HPF_LENGTH;
[INFO] [stdout]     |                      ^^^^ use of undeclared type `Bits`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::device::*`
[INFO] [stdout]   --> src/bits.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |     use crate::device::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mpu6050` due to 3 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "905b7e1026af8f13e3d2743c8660191840849dea8292a5c73e577f38da8c8cf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "905b7e1026af8f13e3d2743c8660191840849dea8292a5c73e577f38da8c8cf7", kill_on_drop: false }`
[INFO] [stdout] 905b7e1026af8f13e3d2743c8660191840849dea8292a5c73e577f38da8c8cf7