Aug 02 14:35:28.121 INFO checking aterm-0.20.0 against 1.27.2 for lazy_static-1
Aug 02 14:35:28.121 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 14:35:28.122 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 14:35:28.122 INFO running `"docker" "create" "-v" "/tmp/crater.HyhGREWLcLMB:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-4/1.27.2:/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 02 14:35:28.527 INFO blam! 590c636c52b3f65c26b1a8bedf7f6252668cdb22c668ea293d791f7b13bd615e
Aug 02 14:35:28.529 INFO running `"docker" "start" "-a" "590c636c52b3f65c26b1a8bedf7f6252668cdb22c668ea293d791f7b13bd615e"`
Aug 02 14:35:30.042 INFO kablam!     Checking aterm v0.20.0 (file:///source)
Aug 02 14:35:32.582 INFO kablam! warning: variable does not need to be mutable
Aug 02 14:35:32.582 INFO kablam!    --> src/rc/mod.rs:221:13
Aug 02 14:35:32.582 INFO kablam!     |
Aug 02 14:35:32.582 INFO kablam! 221 |         let mut string_cache = unsafe { extend_lifetime_mut(&mut self.string_cache.borrow_mut()) };
Aug 02 14:35:32.582 INFO kablam!     |             ----^^^^^^^^^^^^
Aug 02 14:35:32.582 INFO kablam!     |             |
Aug 02 14:35:32.582 INFO kablam!     |             help: remove this `mut`
Aug 02 14:35:32.582 INFO kablam!     |
Aug 02 14:35:32.582 INFO kablam!     = note: #[warn(unused_mut)] on by default
Aug 02 14:35:32.582 INFO kablam! 
Aug 02 14:35:32.602 INFO kablam! warning: variable does not need to be mutable
Aug 02 14:35:32.602 INFO kablam!   --> src/rc/shared.rs:78:13
Aug 02 14:35:32.602 INFO kablam!    |
Aug 02 14:35:32.602 INFO kablam! 78 |         let mut string_cache = unsafe { extend_lifetime_mut(&mut self.string_cache.borrow_mut()) };
Aug 02 14:35:32.602 INFO kablam!    |             ----^^^^^^^^^^^^
Aug 02 14:35:32.602 INFO kablam!    |             |
Aug 02 14:35:32.602 INFO kablam!    |             help: remove this `mut`
Aug 02 14:35:32.602 INFO kablam! 
Aug 02 14:35:32.897 INFO kablam! warning: bounds on generic parameters are not enforced in type aliases
Aug 02 14:35:32.897 INFO kablam!   --> src/rc/mod.rs:71:19
Aug 02 14:35:32.897 INFO kablam!    |
Aug 02 14:35:32.897 INFO kablam! 71 | pub type T<'s, A: ATermT<'s>> = Term<'s, <A as ATermT<'s>>::Blob>;
Aug 02 14:35:32.898 INFO kablam!    |                   ^^^^^^^^^^
Aug 02 14:35:32.898 INFO kablam!    |
Aug 02 14:35:32.898 INFO kablam!    = note: #[warn(type_alias_bounds)] on by default
Aug 02 14:35:32.898 INFO kablam!    = help: the bound will not be checked when the type alias is used, and should be removed
Aug 02 14:35:32.898 INFO kablam! 
Aug 02 14:35:33.134 INFO kablam! warning: variable does not need to be mutable
Aug 02 14:35:33.134 INFO kablam!    --> src/rc/mod.rs:221:13
Aug 02 14:35:33.134 INFO kablam!     |
Aug 02 14:35:33.134 INFO kablam! 221 |         let mut string_cache = unsafe { extend_lifetime_mut(&mut self.string_cache.borrow_mut()) };
Aug 02 14:35:33.134 INFO kablam!     |             ----^^^^^^^^^^^^
Aug 02 14:35:33.134 INFO kablam!     |             |
Aug 02 14:35:33.134 INFO kablam!     |             help: remove this `mut`
Aug 02 14:35:33.142 INFO kablam!     |
Aug 02 14:35:33.142 INFO kablam!     = note: #[warn(unused_mut)] on by default
Aug 02 14:35:33.142 INFO kablam! 
Aug 02 14:35:33.214 INFO kablam! warning: variable does not need to be mutable
Aug 02 14:35:33.214 INFO kablam!   --> src/rc/shared.rs:78:13
Aug 02 14:35:33.214 INFO kablam!    |
Aug 02 14:35:33.214 INFO kablam! 78 |         let mut string_cache = unsafe { extend_lifetime_mut(&mut self.string_cache.borrow_mut()) };
Aug 02 14:35:33.214 INFO kablam!    |             ----^^^^^^^^^^^^
Aug 02 14:35:33.214 INFO kablam!    |             |
Aug 02 14:35:33.214 INFO kablam!    |             help: remove this `mut`
Aug 02 14:35:33.216 INFO kablam! 
Aug 02 14:35:34.125 INFO kablam! warning: bounds on generic parameters are not enforced in type aliases
Aug 02 14:35:34.125 INFO kablam!   --> src/rc/mod.rs:71:19
Aug 02 14:35:34.126 INFO kablam!    |
Aug 02 14:35:34.126 INFO kablam! 71 | pub type T<'s, A: ATermT<'s>> = Term<'s, <A as ATermT<'s>>::Blob>;
Aug 02 14:35:34.126 INFO kablam!    |                   ^^^^^^^^^^
Aug 02 14:35:34.126 INFO kablam!    |
Aug 02 14:35:34.126 INFO kablam!    = note: #[warn(type_alias_bounds)] on by default
Aug 02 14:35:34.126 INFO kablam!    = help: the bound will not be checked when the type alias is used, and should be removed
Aug 02 14:35:34.126 INFO kablam! 
Aug 02 14:35:35.100 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 14:35:35.100 INFO kablam!  --> benches/main.rs:1:1
Aug 02 14:35:35.100 INFO kablam!   |
Aug 02 14:35:35.100 INFO kablam! 1 | #![feature(test)]
Aug 02 14:35:35.100 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 14:35:35.100 INFO kablam! 
Aug 02 14:35:35.100 INFO kablam! error: aborting due to previous error
Aug 02 14:35:35.100 INFO kablam! 
Aug 02 14:35:35.100 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 14:35:35.100 INFO kablam! error: Could not compile `aterm`.
Aug 02 14:35:35.101 INFO kablam! 
Aug 02 14:35:35.101 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 14:35:35.101 INFO kablam! su: No module specific data is present
Aug 02 14:35:36.361 INFO running `"docker" "rm" "-f" "590c636c52b3f65c26b1a8bedf7f6252668cdb22c668ea293d791f7b13bd615e"`
Aug 02 14:35:36.448 INFO blam! 590c636c52b3f65c26b1a8bedf7f6252668cdb22c668ea293d791f7b13bd615e