[INFO] crate hts221 0.2.0 is already in cache
[INFO] extracting crate hts221 0.2.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/hts221/0.2.0
[INFO] extracting crate hts221 0.2.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/hts221/0.2.0
[INFO] validating manifest of hts221-0.2.0 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of hts221-0.2.0 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing hts221-0.2.0
[INFO] finished frobbing hts221-0.2.0
[INFO] frobbed toml for hts221-0.2.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/hts221/0.2.0/Cargo.toml
[INFO] started frobbing hts221-0.2.0
[INFO] finished frobbing hts221-0.2.0
[INFO] frobbed toml for hts221-0.2.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/hts221/0.2.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing hts221-0.2.0 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/hts221/0.2.0:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 4937678547e997be03fba84b07bad9aba8e5e4ba44257dea2b8abd079ceb3e60
[INFO] running `"docker" "start" "-a" "4937678547e997be03fba84b07bad9aba8e5e4ba44257dea2b8abd079ceb3e60"`
[INFO] [stderr]    Compiling embedded-hal v0.2.3
[INFO] [stderr]    Compiling hts221 v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.07s
[INFO] running `"docker" "inspect" "4937678547e997be03fba84b07bad9aba8e5e4ba44257dea2b8abd079ceb3e60"`
[INFO] running `"docker" "rm" "-f" "4937678547e997be03fba84b07bad9aba8e5e4ba44257dea2b8abd079ceb3e60"`
[INFO] [stdout] 4937678547e997be03fba84b07bad9aba8e5e4ba44257dea2b8abd079ceb3e60
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/hts221/0.2.0:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 3b986b1832a74a3db1c773f739ed9aaceab5f9420c361eee42c7080fb77a3940
[INFO] running `"docker" "start" "-a" "3b986b1832a74a3db1c773f739ed9aaceab5f9420c361eee42c7080fb77a3940"`
[INFO] [stderr]    Compiling stm32f30x v0.7.1
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.3
[INFO] [stderr]    Compiling embedded-hal v0.1.3
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.5
[INFO] [stderr]    Compiling skeptic v0.13.4
[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-0.1.3/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" "3b986b1832a74a3db1c773f739ed9aaceab5f9420c361eee42c7080fb77a3940"`
[INFO] running `"docker" "rm" "-f" "3b986b1832a74a3db1c773f739ed9aaceab5f9420c361eee42c7080fb77a3940"`
[INFO] [stdout] 3b986b1832a74a3db1c773f739ed9aaceab5f9420c361eee42c7080fb77a3940