Aug 02 02:43:52.026 INFO checking panic-semihosting-0.2.0 against 1.27.2+tmplazy for lazy_static-1 Aug 02 02:43:52.026 INFO running: cargo +1.27.2 check --frozen --all --all-targets Aug 02 02:43:52.026 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets Aug 02 02:43:52.026 INFO running `"docker" "create" "-v" "/tmp/crater.hIUsgKk2Gwsc:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-7/1.27.2+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 02:43:52.190 INFO blam! 4af45d18d848cb57378286aef09a8abb9cddbf018fa57e40b897636f579e42ed Aug 02 02:43:52.192 INFO running `"docker" "start" "-a" "4af45d18d848cb57378286aef09a8abb9cddbf018fa57e40b897636f579e42ed"` Aug 02 02:43:53.472 INFO kablam! Compiling cortex-m-semihosting v0.3.0 Aug 02 02:43:55.057 INFO kablam! Checking panic-semihosting v0.2.0 (file:///source) Aug 02 02:43:55.432 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel Aug 02 02:43:55.432 INFO kablam! --> src/lib.rs:56:1 Aug 02 02:43:55.432 INFO kablam! | Aug 02 02:43:55.433 INFO kablam! 56 | #![feature(lang_items)] Aug 02 02:43:55.433 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^ Aug 02 02:43:55.433 INFO kablam! Aug 02 02:43:55.433 INFO kablam! error: aborting due to previous error Aug 02 02:43:55.433 INFO kablam! Aug 02 02:43:55.433 INFO kablam! For more information about this error, try `rustc --explain E0554`. Aug 02 02:43:55.438 INFO kablam! error: Could not compile `panic-semihosting`. Aug 02 02:43:55.440 INFO kablam! warning: build failed, waiting for other jobs to finish... Aug 02 02:43:55.640 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel Aug 02 02:43:55.640 INFO kablam! --> src/lib.rs:56:1 Aug 02 02:43:55.640 INFO kablam! | Aug 02 02:43:55.640 INFO kablam! 56 | #![feature(lang_items)] Aug 02 02:43:55.640 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^ Aug 02 02:43:55.640 INFO kablam! Aug 02 02:43:55.640 INFO kablam! error: aborting due to previous error Aug 02 02:43:55.640 INFO kablam! Aug 02 02:43:55.640 INFO kablam! For more information about this error, try `rustc --explain E0554`. Aug 02 02:43:55.654 INFO kablam! error: Could not compile `panic-semihosting`. Aug 02 02:43:55.654 INFO kablam! Aug 02 02:43:55.654 INFO kablam! To learn more, run the command again with --verbose. Aug 02 02:43:55.656 INFO kablam! su: No module specific data is present Aug 02 02:43:56.417 INFO running `"docker" "rm" "-f" "4af45d18d848cb57378286aef09a8abb9cddbf018fa57e40b897636f579e42ed"` Aug 02 02:43:56.620 INFO blam! 4af45d18d848cb57378286aef09a8abb9cddbf018fa57e40b897636f579e42ed