Aug 01 21:32:42.886 INFO checking squark-macros-0.5.3 against 1.27.2 for lazy_static-1
Aug 01 21:32:42.886 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 21:32:42.886 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 21:32:42.886 INFO running `"docker" "create" "-v" "/tmp/crater.I8efL4YPtTGl:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-2/1.27.2:/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 21:32:43.131 INFO blam! 82cdd0e6d232c50504fd311b471ca1ac0f1ac02fb7b191fa10e65384f11e039f
Aug 01 21:32:43.133 INFO running `"docker" "start" "-a" "82cdd0e6d232c50504fd311b471ca1ac0f1ac02fb7b191fa10e65384f11e039f"`
Aug 01 21:32:44.189 INFO kablam!     Checking libc v0.2.42
Aug 01 21:32:44.189 INFO kablam!     Checking rand_core v0.2.1
Aug 01 21:32:44.192 INFO kablam!     Checking pest v1.0.6
Aug 01 21:32:44.194 INFO kablam!     Checking uuid v0.6.5
Aug 01 21:32:44.207 INFO kablam!    Compiling squark-macros v0.5.3 (file:///source)
Aug 01 21:32:46.408 INFO kablam! error[E0432]: unresolved import `proc_macro::Ident`
Aug 01 21:32:46.408 INFO kablam!  --> src/lib.rs:8:71
Aug 01 21:32:46.408 INFO kablam!   |
Aug 01 21:32:46.408 INFO kablam! 8 | use proc_macro::{quote, Literal, TokenTree, TokenStream, Span, Group, Ident};
Aug 01 21:32:46.408 INFO kablam!   |                                                                       ^^^^^ no `Ident` in the root
Aug 01 21:32:46.408 INFO kablam! 
Aug 01 21:32:46.466 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 21:32:46.466 INFO kablam!  --> src/lib.rs:1:1
Aug 01 21:32:46.466 INFO kablam!   |
Aug 01 21:32:46.466 INFO kablam! 1 | #![feature(proc_macro, proc_macro_derive, proc_macro_non_items)]
Aug 01 21:32:46.466 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 21:32:46.466 INFO kablam! 
Aug 01 21:32:46.470 INFO kablam! error: aborting due to 2 previous errors
Aug 01 21:32:46.476 INFO kablam! 
Aug 01 21:32:46.476 INFO kablam! Some errors occurred: E0432, E0554.
Aug 01 21:32:46.476 INFO kablam! For more information about an error, try `rustc --explain E0432`.
Aug 01 21:32:46.488 INFO kablam! error: Could not compile `squark-macros`.
Aug 01 21:32:46.489 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 21:32:49.218 INFO kablam! error: build failed
Aug 01 21:32:49.220 INFO kablam! su: No module specific data is present
Aug 01 21:32:49.905 INFO running `"docker" "rm" "-f" "82cdd0e6d232c50504fd311b471ca1ac0f1ac02fb7b191fa10e65384f11e039f"`
Aug 01 21:32:50.101 INFO blam! 82cdd0e6d232c50504fd311b471ca1ac0f1ac02fb7b191fa10e65384f11e039f