[INFO] updating cached repository chiro/bme280-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/chiro/bme280-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/chiro/bme280-rs" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/chiro/bme280-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/chiro/bme280-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/chiro/bme280-rs" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/chiro/bme280-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/chiro/bme280-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 556a7731ee663fe446593b263cceb2016abc1fd3
[INFO] sha for GitHub repo chiro/bme280-rs: 556a7731ee663fe446593b263cceb2016abc1fd3
[INFO] validating manifest of chiro/bme280-rs on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of chiro/bme280-rs on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing chiro/bme280-rs
[INFO] finished frobbing chiro/bme280-rs
[INFO] frobbed toml for chiro/bme280-rs written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/chiro/bme280-rs/Cargo.toml
[INFO] started frobbing chiro/bme280-rs
[INFO] finished frobbing chiro/bme280-rs
[INFO] frobbed toml for chiro/bme280-rs written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/chiro/bme280-rs/Cargo.toml
[INFO] crate chiro/bme280-rs has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] building chiro/bme280-rs against try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-2/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/chiro/bme280-rs:/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=forbid" "-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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "build" "--frozen"`
[INFO] [stdout] e847ee269a8d9d3b9246ba141cb6d178ea4705c91519a231893c3dc1442eb832
[INFO] running `"docker" "start" "-a" "e847ee269a8d9d3b9246ba141cb6d178ea4705c91519a231893c3dc1442eb832"`
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling semver v0.8.0
[INFO] [stderr]    Compiling regex-syntax v0.5.0
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]    Compiling regex v0.2.7
[INFO] [stderr]    Compiling backtrace v0.3.5
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]    Compiling cargo_metadata v0.3.3
[INFO] [stderr]    Compiling skeptic v0.13.2
[INFO] [stderr]    Compiling docopt v0.8.3
[INFO] [stderr]    Compiling i2cdev v0.3.2
[INFO] [stderr]    Compiling bme280-rs v0.0.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/bme280.rs:284:44
[INFO] [stderr]     |
[INFO] [stderr] 284 |             return Err(Nix(nix::Error::Sys((nix::errno::Errno::ENXIO))));
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 58.37s
[INFO] running `"docker" "inspect" "e847ee269a8d9d3b9246ba141cb6d178ea4705c91519a231893c3dc1442eb832"`
[INFO] running `"docker" "rm" "-f" "e847ee269a8d9d3b9246ba141cb6d178ea4705c91519a231893c3dc1442eb832"`
[INFO] [stdout] e847ee269a8d9d3b9246ba141cb6d178ea4705c91519a231893c3dc1442eb832
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-2/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/chiro/bme280-rs:/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=forbid" "-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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 19c052fcf71827fd14090cd470a1d0a3794ac712d9351f2ba9357dd5664d7ab9
[INFO] running `"docker" "start" "-a" "19c052fcf71827fd14090cd470a1d0a3794ac712d9351f2ba9357dd5664d7ab9"`
[INFO] [stderr]    Compiling i2cdev v0.3.2
[INFO] [stderr]    Compiling bme280-rs v0.0.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/bme280.rs:284:44
[INFO] [stderr]     |
[INFO] [stderr] 284 |             return Err(Nix(nix::Error::Sys((nix::errno::Errno::ENXIO))));
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/bme280.rs:284:44
[INFO] [stderr]     |
[INFO] [stderr] 284 |             return Err(Nix(nix::Error::Sys((nix::errno::Errno::ENXIO))));
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.34s
[INFO] running `"docker" "inspect" "19c052fcf71827fd14090cd470a1d0a3794ac712d9351f2ba9357dd5664d7ab9"`
[INFO] running `"docker" "rm" "-f" "19c052fcf71827fd14090cd470a1d0a3794ac712d9351f2ba9357dd5664d7ab9"`
[INFO] [stdout] 19c052fcf71827fd14090cd470a1d0a3794ac712d9351f2ba9357dd5664d7ab9