Aug 01 20:18:21.579 INFO checking token-1.0.0-rc1 against 1.27.2 for lazy_static-1
Aug 01 20:18:21.579 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:18:21.579 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:18:21.579 INFO running `"docker" "create" "-v" "/tmp/crater.o2oHEu4XFjQZ:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-7/1.27.2:/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 01 20:18:21.831 INFO blam! abdc76b24e29a23574e087666c6b151e9136017ccb8863038d80f42cb7669a45
Aug 01 20:18:21.833 INFO running `"docker" "start" "-a" "abdc76b24e29a23574e087666c6b151e9136017ccb8863038d80f42cb7669a45"`
Aug 01 20:18:22.805 INFO kablam!     Checking token v1.0.0-rc1 (file:///source)
Aug 01 20:18:23.144 INFO kablam! error[E0432]: unresolved import `std::io::ReadExt`
Aug 01 20:18:23.144 INFO kablam!   --> src/lib.rs:50:21
Aug 01 20:18:23.144 INFO kablam!    |
Aug 01 20:18:23.144 INFO kablam! 50 | use std::io::{Read, ReadExt};
Aug 01 20:18:23.144 INFO kablam!    |                     ^^^^^^^ no `ReadExt` in `io`
Aug 01 20:18:23.144 INFO kablam! 
Aug 01 20:18:23.146 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:18:23.146 INFO kablam!   --> src/lib.rs:45:1
Aug 01 20:18:23.146 INFO kablam!    |
Aug 01 20:18:23.146 INFO kablam! 45 | #![feature(core)]
Aug 01 20:18:23.146 INFO kablam!    | ^^^^^^^^^^^^^^^^^
Aug 01 20:18:23.147 INFO kablam! 
Aug 01 20:18:23.147 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:18:23.147 INFO kablam!   --> src/lib.rs:46:1
Aug 01 20:18:23.147 INFO kablam!    |
Aug 01 20:18:23.147 INFO kablam! 46 | #![feature(io)]
Aug 01 20:18:23.147 INFO kablam!    | ^^^^^^^^^^^^^^^
Aug 01 20:18:23.147 INFO kablam! 
Aug 01 20:18:23.148 INFO kablam! error: aborting due to 3 previous errors
Aug 01 20:18:23.148 INFO kablam! 
Aug 01 20:18:23.148 INFO kablam! Some errors occurred: E0432, E0554.
Aug 01 20:18:23.148 INFO kablam! For more information about an error, try `rustc --explain E0432`.
Aug 01 20:18:23.157 INFO kablam! error: Could not compile `token`.
Aug 01 20:18:23.158 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 20:18:23.240 INFO kablam! error[E0432]: unresolved import `std::io::ReadExt`
Aug 01 20:18:23.240 INFO kablam!   --> src/lib.rs:50:21
Aug 01 20:18:23.240 INFO kablam!    |
Aug 01 20:18:23.240 INFO kablam! 50 | use std::io::{Read, ReadExt};
Aug 01 20:18:23.240 INFO kablam!    |                     ^^^^^^^ no `ReadExt` in `io`
Aug 01 20:18:23.240 INFO kablam! 
Aug 01 20:18:23.246 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:18:23.246 INFO kablam!   --> src/lib.rs:45:1
Aug 01 20:18:23.246 INFO kablam!    |
Aug 01 20:18:23.246 INFO kablam! 45 | #![feature(core)]
Aug 01 20:18:23.247 INFO kablam!    | ^^^^^^^^^^^^^^^^^
Aug 01 20:18:23.247 INFO kablam! 
Aug 01 20:18:23.247 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:18:23.247 INFO kablam!   --> src/lib.rs:46:1
Aug 01 20:18:23.247 INFO kablam!    |
Aug 01 20:18:23.247 INFO kablam! 46 | #![feature(io)]
Aug 01 20:18:23.247 INFO kablam!    | ^^^^^^^^^^^^^^^
Aug 01 20:18:23.247 INFO kablam! 
Aug 01 20:18:23.247 INFO kablam! error: aborting due to 3 previous errors
Aug 01 20:18:23.247 INFO kablam! 
Aug 01 20:18:23.247 INFO kablam! Some errors occurred: E0432, E0554.
Aug 01 20:18:23.248 INFO kablam! For more information about an error, try `rustc --explain E0432`.
Aug 01 20:18:23.255 INFO kablam! error: Could not compile `token`.
Aug 01 20:18:23.255 INFO kablam! 
Aug 01 20:18:23.255 INFO kablam! To learn more, run the command again with --verbose.
Aug 01 20:18:23.257 INFO kablam! su: No module specific data is present
Aug 01 20:18:23.855 INFO running `"docker" "rm" "-f" "abdc76b24e29a23574e087666c6b151e9136017ccb8863038d80f42cb7669a45"`
Aug 01 20:18:24.009 INFO blam! abdc76b24e29a23574e087666c6b151e9136017ccb8863038d80f42cb7669a45