[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-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/chiro/bme280-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/chiro/bme280-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/chiro/bme280-rs" "work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/chiro/bme280-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/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#c43d03a19f326f4a323569328cc501e86eb6d22e
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of chiro/bme280-rs on toolchain try#75eff020d0923c035c2fe220db4a0465cd847048
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-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-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/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-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/chiro/bme280-rs/Cargo.toml
[INFO] crate chiro/bme280-rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking chiro/bme280-rs against master#c43d03a19f326f4a323569328cc501e86eb6d22e for pr-63565
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-5/master#c43d03a19f326f4a323569328cc501e86eb6d22e:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/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" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 0cc62164b5b1f794e2da967142f077eec8717fe3f3f48e4b7f0563b1d2eb12a5
[INFO] running `"docker" "start" "-a" "0cc62164b5b1f794e2da967142f077eec8717fe3f3f48e4b7f0563b1d2eb12a5"`
[INFO] [stderr]    Compiling rustc-demangle v0.1.7
[INFO] [stderr]    Compiling num-traits v0.2.1
[INFO] [stderr]    Compiling same-file v0.1.3
[INFO] [stderr]    Compiling bytecount v0.2.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling semver v0.8.0
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking regex-syntax v0.5.0
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]    Compiling walkdir v1.0.7
[INFO] [stderr]     Checking bytes v0.4.6
[INFO] [stderr]    Compiling remove_dir_all v0.3.0
[INFO] [stderr]     Checking nix v0.10.0
[INFO] [stderr]    Compiling tempdir v0.3.6
[INFO] [stderr]    Compiling serde_json v1.0.10
[INFO] [stderr]     Checking regex v0.2.7
[INFO] [stderr]     Checking docopt v0.8.3
[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 i2cdev v0.3.2
[INFO] [stderr]     Checking 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 42.11s
[INFO] running `"docker" "inspect" "0cc62164b5b1f794e2da967142f077eec8717fe3f3f48e4b7f0563b1d2eb12a5"`
[INFO] running `"docker" "rm" "-f" "0cc62164b5b1f794e2da967142f077eec8717fe3f3f48e4b7f0563b1d2eb12a5"`
[INFO] [stdout] 0cc62164b5b1f794e2da967142f077eec8717fe3f3f48e4b7f0563b1d2eb12a5