Aug 10 20:52:22.137 INFO checking UnicodeSnowman/writing_an_interpreter_in_rust against master#f6d43ed84207c7e58f363f46e5a438ff40f2b311 for libc-1
Aug 10 20:52:22.137 INFO running: cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets
Aug 10 20:52:22.137 INFO creating container for: cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets
Aug 10 20:52:22.137 INFO running `"docker" "create" "-v" "/tmp/crater.VgFQowuhWc1S:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/libc-1/worker-2/master#f6d43ed84207c7e58f363f46e5a438ff40f2b311:/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 +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "crater"`
Aug 10 20:52:22.384 INFO blam! 54424feb4b6ecd9921b8f84ab05276fb8d9da832637078b94402e8b596895713
Aug 10 20:52:22.386 INFO running `"docker" "start" "-a" "54424feb4b6ecd9921b8f84ab05276fb8d9da832637078b94402e8b596895713"`
Aug 10 20:52:23.285 INFO kablam!     Checking writing_an_interpreter_in_rust v0.1.0 (file:///source)
Aug 10 20:52:23.894 INFO kablam! warning: private type `(dyn ast::Statement + 'static)` in public interface (error E0446)
Aug 10 20:52:23.894 INFO kablam!   --> src/ast.rs:16:5
Aug 10 20:52:23.894 INFO kablam!    |
Aug 10 20:52:23.895 INFO kablam! 16 |     pub statements: Vec<Box<Statement>>
Aug 10 20:52:23.895 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 10 20:52:23.895 INFO kablam!    |
Aug 10 20:52:23.895 INFO kablam!    = note: #[warn(private_in_public)] on by default
Aug 10 20:52:23.895 INFO kablam!    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
Aug 10 20:52:23.895 INFO kablam!    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
Aug 10 20:52:23.895 INFO kablam! 
Aug 10 20:52:23.898 INFO kablam! warning: unused variable: `blah`
Aug 10 20:52:23.898 INFO kablam!   --> src/parser.rs:26:13
Aug 10 20:52:23.898 INFO kablam!    |
Aug 10 20:52:23.898 INFO kablam! 26 |         let blah = lexer.current_token();
Aug 10 20:52:23.898 INFO kablam!    |             ^^^^ help: consider using `_blah` instead
Aug 10 20:52:23.898 INFO kablam!    |
Aug 10 20:52:23.898 INFO kablam!    = note: #[warn(unused_variables)] on by default
Aug 10 20:52:23.899 INFO kablam! 
Aug 10 20:52:23.962 INFO kablam! error[E0502]: cannot borrow `*lexer` as mutable because it is also borrowed as immutable
Aug 10 20:52:23.962 INFO kablam!   --> src/parser.rs:37:18
Aug 10 20:52:23.962 INFO kablam!    |
Aug 10 20:52:23.962 INFO kablam! 26 |         let blah = lexer.current_token();
Aug 10 20:52:23.962 INFO kablam!    |                    ----- immutable borrow occurs here
Aug 10 20:52:23.962 INFO kablam! ...
Aug 10 20:52:23.962 INFO kablam! 37 |         Parser { lexer, current_token, peek_token, errors: Vec::new() }
Aug 10 20:52:23.962 INFO kablam!    |                  ^^^^^ mutable borrow occurs here
Aug 10 20:52:23.962 INFO kablam! 38 |     }
Aug 10 20:52:23.962 INFO kablam!    |     - immutable borrow ends here
Aug 10 20:52:23.962 INFO kablam! 
Aug 10 20:52:23.967 INFO kablam! error: aborting due to previous error
Aug 10 20:52:23.967 INFO kablam! 
Aug 10 20:52:23.974 INFO kablam! For more information about this error, try `rustc --explain E0502`.
Aug 10 20:52:23.984 INFO kablam! error: Could not compile `writing_an_interpreter_in_rust`.
Aug 10 20:52:23.984 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 10 20:52:24.131 INFO kablam! warning: private type `(dyn ast::Statement + 'static)` in public interface (error E0446)
Aug 10 20:52:24.131 INFO kablam!   --> src/ast.rs:16:5
Aug 10 20:52:24.131 INFO kablam!    |
Aug 10 20:52:24.131 INFO kablam! 16 |     pub statements: Vec<Box<Statement>>
Aug 10 20:52:24.131 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 10 20:52:24.131 INFO kablam!    |
Aug 10 20:52:24.131 INFO kablam!    = note: #[warn(private_in_public)] on by default
Aug 10 20:52:24.131 INFO kablam!    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
Aug 10 20:52:24.131 INFO kablam!    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
Aug 10 20:52:24.131 INFO kablam! 
Aug 10 20:52:24.134 INFO kablam! warning: unused variable: `blah`
Aug 10 20:52:24.134 INFO kablam!   --> src/parser.rs:26:13
Aug 10 20:52:24.134 INFO kablam!    |
Aug 10 20:52:24.134 INFO kablam! 26 |         let blah = lexer.current_token();
Aug 10 20:52:24.134 INFO kablam!    |             ^^^^ help: consider using `_blah` instead
Aug 10 20:52:24.135 INFO kablam!    |
Aug 10 20:52:24.135 INFO kablam!    = note: #[warn(unused_variables)] on by default
Aug 10 20:52:24.136 INFO kablam! 
Aug 10 20:52:24.189 INFO kablam! error[E0502]: cannot borrow `*lexer` as mutable because it is also borrowed as immutable
Aug 10 20:52:24.189 INFO kablam!   --> src/parser.rs:37:18
Aug 10 20:52:24.189 INFO kablam!    |
Aug 10 20:52:24.189 INFO kablam! 26 |         let blah = lexer.current_token();
Aug 10 20:52:24.189 INFO kablam!    |                    ----- immutable borrow occurs here
Aug 10 20:52:24.189 INFO kablam! ...
Aug 10 20:52:24.189 INFO kablam! 37 |         Parser { lexer, current_token, peek_token, errors: Vec::new() }
Aug 10 20:52:24.189 INFO kablam!    |                  ^^^^^ mutable borrow occurs here
Aug 10 20:52:24.189 INFO kablam! 38 |     }
Aug 10 20:52:24.189 INFO kablam!    |     - immutable borrow ends here
Aug 10 20:52:24.190 INFO kablam! 
Aug 10 20:52:24.194 INFO kablam! error: aborting due to previous error
Aug 10 20:52:24.194 INFO kablam! 
Aug 10 20:52:24.194 INFO kablam! For more information about this error, try `rustc --explain E0502`.
Aug 10 20:52:24.213 INFO kablam! error: Could not compile `writing_an_interpreter_in_rust`.
Aug 10 20:52:24.213 INFO kablam! 
Aug 10 20:52:24.213 INFO kablam! To learn more, run the command again with --verbose.
Aug 10 20:52:24.214 INFO kablam! su: No module specific data is present
Aug 10 20:52:24.978 INFO running `"docker" "rm" "-f" "54424feb4b6ecd9921b8f84ab05276fb8d9da832637078b94402e8b596895713"`
Aug 10 20:52:25.156 INFO blam! 54424feb4b6ecd9921b8f84ab05276fb8d9da832637078b94402e8b596895713