[INFO] crate hx711 0.1.0 is already in cache
[INFO] extracting crate hx711 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/hx711/0.1.0
[INFO] extracting crate hx711 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/hx711/0.1.0
[INFO] validating manifest of hx711-0.1.0 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 hx711-0.1.0 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 hx711-0.1.0
[INFO] finished frobbing hx711-0.1.0
[INFO] frobbed toml for hx711-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/hx711/0.1.0/Cargo.toml
[INFO] started frobbing hx711-0.1.0
[INFO] finished frobbing hx711-0.1.0
[INFO] frobbed toml for hx711-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/hx711/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 hx711-0.1.0 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/hx711/0.1.0:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] bf723e039bc08fd10bd4202edb61fde8591b195a14cbd3a03120bfc2ad597fbe
[INFO] running `"docker" "start" "-a" "bf723e039bc08fd10bd4202edb61fde8591b195a14cbd3a03120bfc2ad597fbe"`
[INFO] [stderr]    Compiling hx711 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> src/lib.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | #![feature(never_type)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'hal::digital::InputPin': Deprecated because the methods cannot return errors. Users should use the traits in digital::v2.
[INFO] [stderr]   --> src/lib.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use hal::digital::InputPin;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]   --> src/lib.rs:8:9
[INFO] [stderr]    |
[INFO] [stderr] 8  | #![deny(warnings)]
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    = note: #[warn(deprecated)] implied by #[warn(warnings)]
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'hal::digital::OutputPin': Deprecated because the methods cannot return errors. Users should use the traits in digital::v2.
[INFO] [stderr]   --> src/lib.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | use hal::digital::OutputPin;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'hal::digital::InputPin': Deprecated because the methods cannot return errors. Users should use the traits in digital::v2.
[INFO] [stderr]   --> src/lib.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 |     IN: InputPin,
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'hal::digital::OutputPin': Deprecated because the methods cannot return errors. Users should use the traits in digital::v2.
[INFO] [stderr]   --> src/lib.rs:36:10
[INFO] [stderr]    |
[INFO] [stderr] 36 |     OUT: OutputPin,
[INFO] [stderr]    |          ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'hal::digital::OutputPin::set_low': Deprecated because the methods cannot return errors. Users should use the traits in digital::v2.
[INFO] [stderr]   --> src/lib.rs:40:16
[INFO] [stderr]    |
[INFO] [stderr] 40 |         pd_sck.set_low();
[INFO] [stderr]    |                ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'hal::digital::OutputPin::set_high': Deprecated because the methods cannot return errors. Users should use the traits in digital::v2.
[INFO] [stderr]   --> src/lib.rs:58:21
[INFO] [stderr]    |
[INFO] [stderr] 58 |         self.pd_sck.set_high();
[INFO] [stderr]    |                     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'hal::digital::InputPin::is_high': Deprecated because the methods cannot return errors. Users should use the traits in digital::v2.
[INFO] [stderr]   --> src/lib.rs:60:23
[INFO] [stderr]    |
[INFO] [stderr] 60 |             self.dout.is_high();
[INFO] [stderr]    |                       ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'hal::digital::OutputPin::set_low': Deprecated because the methods cannot return errors. Users should use the traits in digital::v2.
[INFO] [stderr]   --> src/lib.rs:62:21
[INFO] [stderr]    |
[INFO] [stderr] 62 |         self.pd_sck.set_low();
[INFO] [stderr]    |                     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'hal::digital::OutputPin::set_low': Deprecated because the methods cannot return errors. Users should use the traits in digital::v2.
[INFO] [stderr]   --> src/lib.rs:67:21
[INFO] [stderr]    |
[INFO] [stderr] 67 |         self.pd_sck.set_low();
[INFO] [stderr]    |                     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'hal::digital::InputPin::is_high': Deprecated because the methods cannot return errors. Users should use the traits in digital::v2.
[INFO] [stderr]   --> src/lib.rs:68:22
[INFO] [stderr]    |
[INFO] [stderr] 68 |         if self.dout.is_high() {
[INFO] [stderr]    |                      ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'hal::digital::OutputPin::set_high': Deprecated because the methods cannot return errors. Users should use the traits in digital::v2.
[INFO] [stderr]   --> src/lib.rs:77:25
[INFO] [stderr]    |
[INFO] [stderr] 77 |             self.pd_sck.set_high();
[INFO] [stderr]    |                         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'hal::digital::OutputPin::set_low': Deprecated because the methods cannot return errors. Users should use the traits in digital::v2.
[INFO] [stderr]   --> src/lib.rs:78:25
[INFO] [stderr]    |
[INFO] [stderr] 78 |             self.pd_sck.set_low();
[INFO] [stderr]    |                         ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'hal::digital::InputPin::is_high': Deprecated because the methods cannot return errors. Users should use the traits in digital::v2.
[INFO] [stderr]   --> src/lib.rs:79:26
[INFO] [stderr]    |
[INFO] [stderr] 79 |             if self.dout.is_high() {
[INFO] [stderr]    |                          ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'hal::digital::OutputPin::set_high': Deprecated because the methods cannot return errors. Users should use the traits in digital::v2.
[INFO] [stderr]   --> src/lib.rs:87:25
[INFO] [stderr]    |
[INFO] [stderr] 87 |             self.pd_sck.set_high();
[INFO] [stderr]    |                         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'hal::digital::OutputPin::set_low': Deprecated because the methods cannot return errors. Users should use the traits in digital::v2.
[INFO] [stderr]   --> src/lib.rs:88:25
[INFO] [stderr]    |
[INFO] [stderr] 88 |             self.pd_sck.set_low();
[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 `hx711`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "bf723e039bc08fd10bd4202edb61fde8591b195a14cbd3a03120bfc2ad597fbe"`
[INFO] running `"docker" "rm" "-f" "bf723e039bc08fd10bd4202edb61fde8591b195a14cbd3a03120bfc2ad597fbe"`
[INFO] [stdout] bf723e039bc08fd10bd4202edb61fde8591b195a14cbd3a03120bfc2ad597fbe