Aug 02 01:23:54.071 INFO checking ramp-0.3.13 against 1.27.2 for lazy_static-1
Aug 02 01:23:54.071 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 01:23:54.071 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 01:23:54.071 INFO running `"docker" "create" "-v" "/tmp/crater.v3IHBHVS4H3M:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-0/1.27.2:/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 01:23:54.314 INFO blam! f4d4c4ece10fcbd266e3035d4df0215e78293d62b90a1136945b3adf754b4a49
Aug 02 01:23:54.317 INFO running `"docker" "start" "-a" "f4d4c4ece10fcbd266e3035d4df0215e78293d62b90a1136945b3adf754b4a49"`
Aug 02 01:23:55.298 INFO kablam!    Compiling rustc-cfg v0.2.0
Aug 02 01:23:55.302 INFO kablam!    Compiling num-bigint v0.1.44
Aug 02 01:23:55.302 INFO kablam!    Compiling env_logger v0.5.11
Aug 02 01:24:00.756 INFO kablam!    Compiling quickcheck v0.6.2
Aug 02 01:24:07.456 INFO kablam!    Compiling ramp v0.3.13 (file:///source)
Aug 02 01:24:09.011 INFO kablam!    Compiling quickcheck_macros v0.6.2
Aug 02 01:24:09.020 INFO kablam! warning: use of deprecated item 'gcc::compile_library'
Aug 02 01:24:09.020 INFO kablam!   --> build.rs:43:17
Aug 02 01:24:09.020 INFO kablam!    |
Aug 02 01:24:09.021 INFO kablam! 43 |                 gcc::compile_library("libasm.a", asm_srcs);
Aug 02 01:24:09.021 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^
Aug 02 01:24:09.021 INFO kablam!    |
Aug 02 01:24:09.021 INFO kablam!    = note: #[warn(deprecated)] on by default
Aug 02 01:24:09.024 INFO kablam! 
Aug 02 01:24:11.589 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 01:24:11.589 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/quickcheck_macros-0.6.2/src/lib.rs:8:1
Aug 02 01:24:11.589 INFO kablam!   |
Aug 02 01:24:11.589 INFO kablam! 8 | #![feature(plugin_registrar, rustc_private)]
Aug 02 01:24:11.589 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 01:24:11.589 INFO kablam! 
Aug 02 01:24:11.590 INFO kablam! error: aborting due to previous error
Aug 02 01:24:11.590 INFO kablam! 
Aug 02 01:24:11.590 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 01:24:11.612 INFO kablam! error: Could not compile `quickcheck_macros`.
Aug 02 01:24:11.613 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 01:24:12.373 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 01:24:12.373 INFO kablam!   --> src/lib.rs:18:1
Aug 02 01:24:12.373 INFO kablam!    |
Aug 02 01:24:12.373 INFO kablam! 18 | #![feature(core_intrinsics, asm, allocator_api)]
Aug 02 01:24:12.373 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 01:24:12.373 INFO kablam! 
Aug 02 01:24:12.373 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 01:24:12.373 INFO kablam!   --> src/lib.rs:19:1
Aug 02 01:24:12.373 INFO kablam!    |
Aug 02 01:24:12.373 INFO kablam! 19 | #![feature(step_trait, ptr_internals, alloc)]
Aug 02 01:24:12.373 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 01:24:12.373 INFO kablam! 
Aug 02 01:24:12.393 INFO kablam! error: aborting due to 2 previous errors
Aug 02 01:24:12.393 INFO kablam! 
Aug 02 01:24:12.394 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 01:24:12.417 INFO kablam! error: Could not compile `ramp`.
Aug 02 01:24:12.417 INFO kablam! 
Aug 02 01:24:12.417 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 01:24:12.436 INFO kablam! su: No module specific data is present
Aug 02 01:24:13.042 INFO running `"docker" "rm" "-f" "f4d4c4ece10fcbd266e3035d4df0215e78293d62b90a1136945b3adf754b4a49"`
Aug 02 01:24:13.212 INFO blam! f4d4c4ece10fcbd266e3035d4df0215e78293d62b90a1136945b3adf754b4a49