Aug 02 10:56:22.667 INFO checking elfloader-0.0.5 against 1.27.2+tmplazy for lazy_static-1 Aug 02 10:56:22.667 INFO running: cargo +1.27.2 check --frozen --all --all-targets Aug 02 10:56:22.667 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets Aug 02 10:56:22.667 INFO running `"docker" "create" "-v" "/tmp/crater.qVVvXrRHhL3w:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-2/1.27.2+tmplazy:/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 10:56:22.847 INFO blam! 76fad7e787bb04473df8ff344aa847f9a3982b51fc6df36d02b1ee21d2f88bf8 Aug 02 10:56:22.849 INFO running `"docker" "start" "-a" "76fad7e787bb04473df8ff344aa847f9a3982b51fc6df36d02b1ee21d2f88bf8"` Aug 02 10:56:23.923 INFO kablam! Checking elfloader v0.0.5 (file:///source) Aug 02 10:56:24.418 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel Aug 02 10:56:24.418 INFO kablam! --> src/lib.rs:1:1 Aug 02 10:56:24.418 INFO kablam! | Aug 02 10:56:24.418 INFO kablam! 1 | #![feature(core, core_prelude, core_slice_ext, custom_derive)] Aug 02 10:56:24.418 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Aug 02 10:56:24.418 INFO kablam! Aug 02 10:56:24.422 INFO kablam! error: aborting due to previous error Aug 02 10:56:24.422 INFO kablam! Aug 02 10:56:24.422 INFO kablam! For more information about this error, try `rustc --explain E0554`. Aug 02 10:56:24.427 INFO kablam! error: Could not compile `elfloader`. Aug 02 10:56:24.427 INFO kablam! warning: build failed, waiting for other jobs to finish... Aug 02 10:56:24.588 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel Aug 02 10:56:24.588 INFO kablam! --> src/lib.rs:1:1 Aug 02 10:56:24.588 INFO kablam! | Aug 02 10:56:24.588 INFO kablam! 1 | #![feature(core, core_prelude, core_slice_ext, custom_derive)] Aug 02 10:56:24.588 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Aug 02 10:56:24.588 INFO kablam! Aug 02 10:56:24.592 INFO kablam! error: aborting due to previous error Aug 02 10:56:24.592 INFO kablam! Aug 02 10:56:24.592 INFO kablam! For more information about this error, try `rustc --explain E0554`. Aug 02 10:56:24.599 INFO kablam! error: Could not compile `elfloader`. Aug 02 10:56:24.599 INFO kablam! Aug 02 10:56:24.600 INFO kablam! To learn more, run the command again with --verbose. Aug 02 10:56:24.601 INFO kablam! su: No module specific data is present Aug 02 10:56:25.209 INFO running `"docker" "rm" "-f" "76fad7e787bb04473df8ff344aa847f9a3982b51fc6df36d02b1ee21d2f88bf8"` Aug 02 10:56:25.395 INFO blam! 76fad7e787bb04473df8ff344aa847f9a3982b51fc6df36d02b1ee21d2f88bf8