[INFO] updating cached repository miek/influx-sht3x
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/miek/influx-sht3x
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/miek/influx-sht3x" "work/ex/beta-1.38-1/sources/1.37.0/gh/miek/influx-sht3x"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/miek/influx-sht3x'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/miek/influx-sht3x" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/miek/influx-sht3x"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/miek/influx-sht3x'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a2d01a6e9a92d3d80be41a8345d0d7de663c10cd
[INFO] sha for GitHub repo miek/influx-sht3x: a2d01a6e9a92d3d80be41a8345d0d7de663c10cd
[INFO] validating manifest of miek/influx-sht3x 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 miek/influx-sht3x 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 miek/influx-sht3x
[INFO] finished frobbing miek/influx-sht3x
[INFO] frobbed toml for miek/influx-sht3x written to work/ex/beta-1.38-1/sources/1.37.0/gh/miek/influx-sht3x/Cargo.toml
[INFO] started frobbing miek/influx-sht3x
[INFO] finished frobbing miek/influx-sht3x
[INFO] frobbed toml for miek/influx-sht3x written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/miek/influx-sht3x/Cargo.toml
[INFO] crate miek/influx-sht3x already has a lockfile, it will not be regenerated
[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 miek/influx-sht3x against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/miek/influx-sht3x:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 9779f7403828819e6911c42ca8df5126b43c8261e6d2e4c69522e49c233561a6
[INFO] running `"docker" "start" "-a" "9779f7403828819e6911c42ca8df5126b43c8261e6d2e4c69522e49c233561a6"`
[INFO] [stderr]    Compiling cc v1.0.8
[INFO] [stderr]    Compiling num-traits v0.2.1
[INFO] [stderr]    Compiling nb v0.1.1
[INFO] [stderr]    Compiling cast v0.2.2
[INFO] [stderr]    Compiling semver v0.8.0
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]    Compiling serde_derive_internals v0.21.0
[INFO] [stderr]    Compiling nix v0.6.0
[INFO] [stderr]    Compiling hyper v0.10.13
[INFO] [stderr]    Compiling embedded-hal v0.1.2
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/embedded-hal-0.1.2/src/lib.rs:681:1
[INFO] [stderr]     |
[INFO] [stderr] 681 | #![feature(never_type)]
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `embedded-hal`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "9779f7403828819e6911c42ca8df5126b43c8261e6d2e4c69522e49c233561a6"`
[INFO] running `"docker" "rm" "-f" "9779f7403828819e6911c42ca8df5126b43c8261e6d2e4c69522e49c233561a6"`
[INFO] [stdout] 9779f7403828819e6911c42ca8df5126b43c8261e6d2e4c69522e49c233561a6