Aug 01 19:29:19.918 INFO checking utf8-ranges-0.1.3 against 1.27.2+tmplazy for lazy_static-1 Aug 01 19:29:19.918 INFO running: cargo +1.27.2 check --frozen --all --all-targets Aug 01 19:29:19.918 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets Aug 01 19:29:19.918 INFO running `"docker" "create" "-v" "/tmp/crater.WgMPTCBv7VAd:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-4/1.27.2+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 01 19:29:20.126 INFO blam! edfce88a1c2ae74daf9dba0f0e012ca8c486c8c5d6d4769567c9f7705f291f11 Aug 01 19:29:20.128 INFO running `"docker" "start" "-a" "edfce88a1c2ae74daf9dba0f0e012ca8c486c8c5d6d4769567c9f7705f291f11"` Aug 01 19:29:21.010 INFO kablam! Checking utf8-ranges v0.1.3 (file:///source) Aug 01 19:29:21.014 INFO kablam! Checking quickcheck v0.2.27 Aug 01 19:29:25.445 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel Aug 01 19:29:25.445 INFO kablam! --> benches/bench.rs:1:1 Aug 01 19:29:25.445 INFO kablam! | Aug 01 19:29:25.445 INFO kablam! 1 | #![feature(test)] Aug 01 19:29:25.445 INFO kablam! | ^^^^^^^^^^^^^^^^^ Aug 01 19:29:25.446 INFO kablam! Aug 01 19:29:25.446 INFO kablam! error: aborting due to previous error Aug 01 19:29:25.446 INFO kablam! Aug 01 19:29:25.447 INFO kablam! For more information about this error, try `rustc --explain E0554`. Aug 01 19:29:25.458 INFO kablam! error: Could not compile `utf8-ranges`. Aug 01 19:29:25.459 INFO kablam! warning: build failed, waiting for other jobs to finish... Aug 01 19:29:26.049 INFO kablam! error: build failed Aug 01 19:29:26.051 INFO kablam! su: No module specific data is present Aug 01 19:29:26.575 INFO running `"docker" "rm" "-f" "edfce88a1c2ae74daf9dba0f0e012ca8c486c8c5d6d4769567c9f7705f291f11"` Aug 01 19:29:26.756 INFO blam! edfce88a1c2ae74daf9dba0f0e012ca8c486c8c5d6d4769567c9f7705f291f11