[INFO] crate mcp4725 0.1.2 is already in cache
[INFO] extracting crate mcp4725 0.1.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/mcp4725/0.1.2
[INFO] extracting crate mcp4725 0.1.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/mcp4725/0.1.2
[INFO] validating manifest of mcp4725-0.1.2 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of mcp4725-0.1.2 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing mcp4725-0.1.2
[INFO] finished frobbing mcp4725-0.1.2
[INFO] frobbed toml for mcp4725-0.1.2 written to work/ex/beta-1.38-1/sources/1.37.0/reg/mcp4725/0.1.2/Cargo.toml
[INFO] started frobbing mcp4725-0.1.2
[INFO] finished frobbing mcp4725-0.1.2
[INFO] frobbed toml for mcp4725-0.1.2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/mcp4725/0.1.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing mcp4725-0.1.2 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/mcp4725/0.1.2:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 3b84176a1c5b9df28a23ae0f196b802c264aae9cbf22c78ddcd05acabf50f367
[INFO] running `"docker" "start" "-a" "3b84176a1c5b9df28a23ae0f196b802c264aae9cbf22c78ddcd05acabf50f367"`
[INFO] [stderr]    Compiling nb v0.1.2
[INFO] [stderr]    Compiling embedded-hal v0.2.3
[INFO] [stderr]    Compiling mcp4725 v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `core::result::Result` that must be used
[INFO] [stderr]   --> src/lib.rs:56:9
[INFO] [stderr]    |
[INFO] [stderr] 56 |         self.i2c.write(command.address_byte, &command.bytes());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `core::result::Result` that must be used
[INFO] [stderr]   --> src/lib.rs:61:9
[INFO] [stderr]    |
[INFO] [stderr] 61 |         self.i2c.write(command.address_byte, &command.bytes());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `"docker" "inspect" "3b84176a1c5b9df28a23ae0f196b802c264aae9cbf22c78ddcd05acabf50f367"`
[INFO] running `"docker" "rm" "-f" "3b84176a1c5b9df28a23ae0f196b802c264aae9cbf22c78ddcd05acabf50f367"`
[INFO] [stdout] 3b84176a1c5b9df28a23ae0f196b802c264aae9cbf22c78ddcd05acabf50f367
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/mcp4725/0.1.2:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 9073d9f5f2a9f9ffa22cd28144dbce62e6bd52c141b112c487f8767eb32775c7
[INFO] running `"docker" "start" "-a" "9073d9f5f2a9f9ffa22cd28144dbce62e6bd52c141b112c487f8767eb32775c7"`
[INFO] [stderr]    Compiling mcp4725 v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `core::result::Result` that must be used
[INFO] [stderr]   --> src/lib.rs:56:9
[INFO] [stderr]    |
[INFO] [stderr] 56 |         self.i2c.write(command.address_byte, &command.bytes());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `core::result::Result` that must be used
[INFO] [stderr]   --> src/lib.rs:61:9
[INFO] [stderr]    |
[INFO] [stderr] 61 |         self.i2c.write(command.address_byte, &command.bytes());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `"docker" "inspect" "9073d9f5f2a9f9ffa22cd28144dbce62e6bd52c141b112c487f8767eb32775c7"`
[INFO] running `"docker" "rm" "-f" "9073d9f5f2a9f9ffa22cd28144dbce62e6bd52c141b112c487f8767eb32775c7"`
[INFO] [stdout] 9073d9f5f2a9f9ffa22cd28144dbce62e6bd52c141b112c487f8767eb32775c7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/mcp4725/0.1.2:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] e9d1ed7217abca4cff5614f0049f69c85eeb946fb2a6ecfcb760c31be87b61bb
[INFO] running `"docker" "start" "-a" "e9d1ed7217abca4cff5614f0049f69c85eeb946fb2a6ecfcb760c31be87b61bb"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/mcp4725-3f05398e493159ea
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test test_command::should_encode_command_into_data_bytes ... ok
[INFO] [stdout] test test_command::should_encode_data_into_data_bytes ... ok
[INFO] [stdout] test test_command::should_ignore_adresses_with_more_than_3_bits ... ok
[INFO] [stdout] test test_fast_command::should_encode_data_into_data_bytes ... ok
[INFO] [stdout] test test_fast_command::should_encode_powermode_into_data_bytes ... ok
[INFO] [stdout] test test_fast_command::should_encode_address_with_device_id ... ok
[INFO] [stdout] test test_command::should_encode_address_with_device_id ... ok
[INFO] [stdout] test test_fast_command::should_ignore_adresses_with_more_than_3_bits ... ok
[INFO] [stdout] test test_command::should_encode_power_mode_into_data_bytes ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mcp4725
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs -  (line 11) ... ignored
[INFO] [stdout] test src/lib.rs -  (line 18) ... ignored
[INFO] [stdout] test src/lib.rs -  (line 25) ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 3 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "e9d1ed7217abca4cff5614f0049f69c85eeb946fb2a6ecfcb760c31be87b61bb"`
[INFO] running `"docker" "rm" "-f" "e9d1ed7217abca4cff5614f0049f69c85eeb946fb2a6ecfcb760c31be87b61bb"`
[INFO] [stdout] e9d1ed7217abca4cff5614f0049f69c85eeb946fb2a6ecfcb760c31be87b61bb