[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-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/chiro/bme280-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/chiro/bme280-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/chiro/bme280-rs" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/chiro/bme280-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/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#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of chiro/bme280-rs on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-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-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/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-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/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" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking chiro/bme280-rs against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-7/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a58cda1caf72fcb84a5245a5bf786dd944a73b7fb9f830edca05637a1a091620
[INFO] running `"docker" "start" "-a" "a58cda1caf72fcb84a5245a5bf786dd944a73b7fb9f830edca05637a1a091620"`
[INFO] [stderr]    Compiling cc v1.0.6
[INFO] [stderr]    Compiling rustc-demangle v0.1.7
[INFO] [stderr]    Compiling num-traits v0.2.1
[INFO] [stderr]    Compiling serde v1.0.29
[INFO] [stderr]    Compiling same-file v0.1.3
[INFO] [stderr]    Compiling bytecount v0.2.0
[INFO] [stderr]     Checking regex-syntax v0.5.0
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]    Compiling syn v0.12.14
[INFO] [stderr]    Compiling walkdir v1.0.7
[INFO] [stderr]     Checking nix v0.10.0
[INFO] [stderr]    Compiling remove_dir_all v0.3.0
[INFO] [stderr]    Compiling tempdir v0.3.6
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling serde_derive_internals v0.20.0
[INFO] [stderr]     Checking regex v0.2.7
[INFO] [stderr]    Compiling serde_derive v1.0.29
[INFO] [stderr]    Compiling backtrace v0.3.5
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]     Checking docopt v0.8.3
[INFO] [stderr]    Compiling semver v0.8.0
[INFO] [stderr]    Compiling serde_json v1.0.10
[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 1m 05s
[INFO] running `"docker" "inspect" "a58cda1caf72fcb84a5245a5bf786dd944a73b7fb9f830edca05637a1a091620"`
[INFO] running `"docker" "rm" "-f" "a58cda1caf72fcb84a5245a5bf786dd944a73b7fb9f830edca05637a1a091620"`
[INFO] [stdout] a58cda1caf72fcb84a5245a5bf786dd944a73b7fb9f830edca05637a1a091620