Aug 01 20:29:28.305 INFO checking thunder-0.3.1 against 1.27.2+tmplazy for lazy_static-1
Aug 01 20:29:28.305 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:29:28.305 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:29:28.305 INFO running `"docker" "create" "-v" "/tmp/crater.YAPnYCQw3BwV:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-2/1.27.2+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 20:29:28.570 INFO blam! 8585cd30ba21d91864d9a4b532b61598b12c3163c52deef8e566a2a1d7dd5ab5
Aug 01 20:29:28.573 INFO running `"docker" "start" "-a" "8585cd30ba21d91864d9a4b532b61598b12c3163c52deef8e566a2a1d7dd5ab5"`
Aug 01 20:29:29.540 INFO kablam!     Checking vec_map v0.8.1
Aug 01 20:29:29.545 INFO kablam!     Checking strsim v0.7.0
Aug 01 20:29:29.548 INFO kablam!     Checking ansi_term v0.11.0
Aug 01 20:29:29.550 INFO kablam!     Checking proc-macro2 v0.2.3
Aug 01 20:29:29.552 INFO kablam!     Checking atty v0.2.11
Aug 01 20:29:29.554 INFO kablam!     Checking textwrap v0.10.0
Aug 01 20:29:29.556 INFO kablam!    Compiling syn v0.12.15
Aug 01 20:29:33.338 INFO kablam!     Checking clap v2.32.0
Aug 01 20:29:35.793 INFO kablam!     Checking quote v0.4.2
Aug 01 20:30:26.156 INFO kablam!     Checking thunder v0.3.1 (file:///source)
Aug 01 20:30:30.168 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:30:30.168 INFO kablam!  --> src/lib.rs:2:1
Aug 01 20:30:30.168 INFO kablam!   |
Aug 01 20:30:30.168 INFO kablam! 2 | #![feature(external_doc)]
Aug 01 20:30:30.168 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 20:30:30.168 INFO kablam! 
Aug 01 20:30:30.168 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:30:30.168 INFO kablam!  --> src/lib.rs:4:1
Aug 01 20:30:30.168 INFO kablam!   |
Aug 01 20:30:30.168 INFO kablam! 4 | #![feature(proc_macro, proc_macro_lib)]
Aug 01 20:30:30.168 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 20:30:30.168 INFO kablam! 
Aug 01 20:30:30.187 INFO kablam! error: aborting due to 2 previous errors
Aug 01 20:30:30.187 INFO kablam! 
Aug 01 20:30:30.187 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 20:30:30.236 INFO kablam! error: Could not compile `thunder`.
Aug 01 20:30:30.236 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 20:30:30.240 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:30:30.240 INFO kablam!  --> src/lib.rs:2:1
Aug 01 20:30:30.240 INFO kablam!   |
Aug 01 20:30:30.240 INFO kablam! 2 | #![feature(external_doc)]
Aug 01 20:30:30.240 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 20:30:30.240 INFO kablam! 
Aug 01 20:30:30.241 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:30:30.241 INFO kablam!  --> src/lib.rs:4:1
Aug 01 20:30:30.241 INFO kablam!   |
Aug 01 20:30:30.241 INFO kablam! 4 | #![feature(proc_macro, proc_macro_lib)]
Aug 01 20:30:30.241 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 20:30:30.241 INFO kablam! 
Aug 01 20:30:30.244 INFO kablam! error: aborting due to 2 previous errors
Aug 01 20:30:30.244 INFO kablam! 
Aug 01 20:30:30.244 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 20:30:30.279 INFO kablam! error: Could not compile `thunder`.
Aug 01 20:30:30.279 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 20:30:43.600 INFO kablam! error: build failed
Aug 01 20:30:43.602 INFO kablam! su: No module specific data is present
Aug 01 20:30:44.251 INFO running `"docker" "rm" "-f" "8585cd30ba21d91864d9a4b532b61598b12c3163c52deef8e566a2a1d7dd5ab5"`
Aug 01 20:30:44.413 INFO blam! 8585cd30ba21d91864d9a4b532b61598b12c3163c52deef8e566a2a1d7dd5ab5