Aug 02 15:17:52.603 INFO checking adc-mcp3008-0.1.1 against 1.27.2 for lazy_static-1 Aug 02 15:17:52.603 INFO running: cargo +1.27.2 check --frozen --all --all-targets Aug 02 15:17:52.603 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets Aug 02 15:17:52.603 INFO running `"docker" "create" "-v" "/tmp/crater.Df9teYeOhnm5:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-3/1.27.2:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home/git:/cargo-home/git:rw,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +1.27.2 check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"` Aug 02 15:17:52.836 INFO blam! 54fc927f0706f083f3d1bb7b7194d8b80283c5b29047f70a68fd93924d3e4415 Aug 02 15:17:52.837 INFO running `"docker" "start" "-a" "54fc927f0706f083f3d1bb7b7194d8b80283c5b29047f70a68fd93924d3e4415"` Aug 02 15:17:53.752 INFO kablam! Checking embedded-hal v0.1.3 Aug 02 15:17:54.146 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel Aug 02 15:17:54.146 INFO kablam! --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/embedded-hal-0.1.3/src/lib.rs:681:1 Aug 02 15:17:54.146 INFO kablam! | Aug 02 15:17:54.146 INFO kablam! 681 | #![feature(never_type)] Aug 02 15:17:54.146 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^ Aug 02 15:17:54.147 INFO kablam! Aug 02 15:17:54.151 INFO kablam! error: aborting due to previous error Aug 02 15:17:54.151 INFO kablam! Aug 02 15:17:54.151 INFO kablam! For more information about this error, try `rustc --explain E0554`. Aug 02 15:17:54.157 INFO kablam! error: Could not compile `embedded-hal`. Aug 02 15:17:54.158 INFO kablam! Aug 02 15:17:54.158 INFO kablam! To learn more, run the command again with --verbose. Aug 02 15:17:54.160 INFO kablam! su: No module specific data is present Aug 02 15:17:54.839 INFO running `"docker" "rm" "-f" "54fc927f0706f083f3d1bb7b7194d8b80283c5b29047f70a68fd93924d3e4415"` Aug 02 15:17:55.007 INFO blam! 54fc927f0706f083f3d1bb7b7194d8b80283c5b29047f70a68fd93924d3e4415