Aug 01 23:03:28.677 INFO checking safety-0.1.0 against 1.27.2 for lazy_static-1
Aug 01 23:03:28.677 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 23:03:28.677 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 23:03:28.677 INFO running `"docker" "create" "-v" "/tmp/crater.O3eeYTM8SoCN:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-5/1.27.2:/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 23:03:29.003 INFO blam! fa4696adb69d3b990aed60ec17510241d68c204cfd00ebc55decd01901ae33fe
Aug 01 23:03:29.006 INFO running `"docker" "start" "-a" "fa4696adb69d3b990aed60ec17510241d68c204cfd00ebc55decd01901ae33fe"`
Aug 01 23:03:30.484 INFO kablam!     Checking syntex_pos v0.52.0
Aug 01 23:03:30.487 INFO kablam!    Compiling serde_codegen v0.8.23
Aug 01 23:03:32.185 INFO kablam!     Checking syntex_errors v0.52.0
Aug 01 23:03:35.131 INFO kablam!     Checking syntex_syntax v0.52.0
Aug 01 23:03:42.242 INFO kablam!    Compiling serde_derive v0.8.23
Aug 01 23:04:14.244 INFO kablam!     Checking syntex v0.52.0
Aug 01 23:04:15.201 INFO kablam!     Checking safety v0.1.0 (file:///source)
Aug 01 23:04:17.022 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 23:04:17.022 INFO kablam!  --> src/lib.rs:1:1
Aug 01 23:04:17.022 INFO kablam!   |
Aug 01 23:04:17.023 INFO kablam! 1 | #![feature(proc_macro)]
Aug 01 23:04:17.023 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 23:04:17.023 INFO kablam! 
Aug 01 23:04:17.023 INFO kablam! error: aborting due to previous error
Aug 01 23:04:17.023 INFO kablam! 
Aug 01 23:04:17.023 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 23:04:17.062 INFO kablam! error: Could not compile `safety`.
Aug 01 23:04:17.063 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 23:04:17.174 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 23:04:17.174 INFO kablam!  --> src/lib.rs:1:1
Aug 01 23:04:17.174 INFO kablam!   |
Aug 01 23:04:17.174 INFO kablam! 1 | #![feature(proc_macro)]
Aug 01 23:04:17.174 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 23:04:17.181 INFO kablam! 
Aug 01 23:04:17.182 INFO kablam! error: aborting due to previous error
Aug 01 23:04:17.183 INFO kablam! 
Aug 01 23:04:17.183 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 23:04:17.201 INFO kablam! error: Could not compile `safety`.
Aug 01 23:04:17.201 INFO kablam! 
Aug 01 23:04:17.201 INFO kablam! To learn more, run the command again with --verbose.
Aug 01 23:04:17.202 INFO kablam! su: No module specific data is present
Aug 01 23:04:17.915 INFO running `"docker" "rm" "-f" "fa4696adb69d3b990aed60ec17510241d68c204cfd00ebc55decd01901ae33fe"`
Aug 01 23:04:18.077 INFO blam! fa4696adb69d3b990aed60ec17510241d68c204cfd00ebc55decd01901ae33fe