Aug 01 15:20:40.441 INFO checking programble/viola against 1.27.2 for lazy_static-1
Aug 01 15:20:40.442 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 15:20:40.442 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 15:20:40.442 INFO running `"docker" "create" "-v" "/tmp/crater.rfgJsHDuIUN1:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-6/1.27.2:/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 15:20:40.724 INFO blam! 79392f58c658f586a5e83be8f5ba8e5b4c578ce75ac411b8f1832b06638e0944
Aug 01 15:20:40.726 INFO running `"docker" "start" "-a" "79392f58c658f586a5e83be8f5ba8e5b4c578ce75ac411b8f1832b06638e0944"`
Aug 01 15:20:41.628 INFO kablam! warning: An explicit [[bin]] section is specified in Cargo.toml which currently
Aug 01 15:20:41.628 INFO kablam! disables Cargo from automatically inferring other binary targets.
Aug 01 15:20:41.628 INFO kablam! This inference behavior will change in the Rust 2018 edition and the following
Aug 01 15:20:41.628 INFO kablam! files will be included as a binary target:
Aug 01 15:20:41.628 INFO kablam! 
Aug 01 15:20:41.628 INFO kablam! * /source/src/main.rs
Aug 01 15:20:41.628 INFO kablam! 
Aug 01 15:20:41.628 INFO kablam! This is likely to break cargo build or cargo test as these files may not be
Aug 01 15:20:41.628 INFO kablam! ready to be compiled as a binary target today. You can future-proof yourself
Aug 01 15:20:41.628 INFO kablam! and disable this warning by adding `autobins = false` to your [package]
Aug 01 15:20:41.628 INFO kablam! section. You may also move the files to a location where Cargo would not
Aug 01 15:20:41.628 INFO kablam! automatically infer them to be a target, such as in subfolders.
Aug 01 15:20:41.628 INFO kablam! 
Aug 01 15:20:41.628 INFO kablam! For more information on this warning you can consult
Aug 01 15:20:41.628 INFO kablam! https://github.com/rust-lang/cargo/issues/5330
Aug 01 15:20:41.628 INFO kablam! warning: path `/source/src/main.rs` was erroneously implicitly accepted for binary `vio`,
Aug 01 15:20:41.628 INFO kablam! please set bin.path in Cargo.toml
Aug 01 15:20:41.739 INFO kablam!    Compiling utf8-ranges v0.1.3
Aug 01 15:20:41.743 INFO kablam!    Compiling regex-syntax v0.3.9
Aug 01 15:20:41.752 INFO kablam!     Checking viola v0.0.0 (file:///source)
Aug 01 15:20:41.753 INFO kablam!    Compiling memchr v0.1.11
Aug 01 15:20:41.758 INFO kablam!    Compiling rand v0.3.22
Aug 01 15:20:41.760 INFO kablam!    Compiling thread-id v2.0.0
Aug 01 15:20:41.760 INFO kablam!     Checking quickcheck v0.3.2
Aug 01 15:20:42.936 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 15:20:42.936 INFO kablam!   --> src/lib.rs:14:1
Aug 01 15:20:42.936 INFO kablam!    |
Aug 01 15:20:42.936 INFO kablam! 14 | / #![feature(
Aug 01 15:20:42.936 INFO kablam! 15 | |     pub_restricted,
Aug 01 15:20:42.936 INFO kablam! 16 | |     question_mark,
Aug 01 15:20:42.936 INFO kablam! 17 | |     type_ascription,
Aug 01 15:20:42.936 INFO kablam! 18 | | )]
Aug 01 15:20:42.936 INFO kablam!    | |__^
Aug 01 15:20:42.936 INFO kablam! 
Aug 01 15:20:43.010 INFO kablam! error: aborting due to previous error
Aug 01 15:20:43.010 INFO kablam! 
Aug 01 15:20:43.010 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 15:20:43.048 INFO kablam! error: Could not compile `viola`.
Aug 01 15:20:43.048 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 15:20:56.661 INFO kablam! error: build failed
Aug 01 15:20:56.663 INFO kablam! su: No module specific data is present
Aug 01 15:20:57.528 INFO running `"docker" "rm" "-f" "79392f58c658f586a5e83be8f5ba8e5b4c578ce75ac411b8f1832b06638e0944"`
Aug 01 15:20:57.748 INFO blam! 79392f58c658f586a5e83be8f5ba8e5b4c578ce75ac411b8f1832b06638e0944