Sep 01 16:58:39.402 INFO checking UnicodeSnowman/writing_an_interpreter_in_rust against try#952c7dbfa2628309f557b367929ffc17af20b332 for pr-53851
Sep 01 16:58:39.402 INFO running: cargo +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets
Sep 01 16:58:39.402 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53851/try#952c7dbfa2628309f557b367929ffc17af20b332:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-0/try#952c7dbfa2628309f557b367929ffc17af20b332:/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" "-e" "USER_ID=500" "-e" "CMD=cargo +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 16:58:39.602 INFO blam! 6d6d3e199ae3369304556077c58101182ca314107593c3541d02343e0ece0149
Sep 01 16:58:39.604 INFO running `"docker" "start" "-a" "6d6d3e199ae3369304556077c58101182ca314107593c3541d02343e0ece0149"`
Sep 01 16:58:40.208 INFO kablam!     Checking writing_an_interpreter_in_rust v0.1.0 (file:///source)
Sep 01 16:58:40.651 INFO kablam! warning: private type `(dyn ast::Statement + 'static)` in public interface (error E0446)
Sep 01 16:58:40.651 INFO kablam!   --> src/ast.rs:16:5
Sep 01 16:58:40.651 INFO kablam!    |
Sep 01 16:58:40.651 INFO kablam! 16 |     pub statements: Vec<Box<Statement>>
Sep 01 16:58:40.651 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 16:58:40.651 INFO kablam!    |
Sep 01 16:58:40.651 INFO kablam!    = note: #[warn(private_in_public)] on by default
Sep 01 16:58:40.651 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!
Sep 01 16:58:40.651 INFO kablam!    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
Sep 01 16:58:40.651 INFO kablam! 
Sep 01 16:58:40.653 INFO kablam! warning: unused variable: `blah`
Sep 01 16:58:40.653 INFO kablam!   --> src/parser.rs:26:13
Sep 01 16:58:40.653 INFO kablam!    |
Sep 01 16:58:40.653 INFO kablam! 26 |         let blah = lexer.current_token();
Sep 01 16:58:40.653 INFO kablam!    |             ^^^^ help: consider using `_blah` instead
Sep 01 16:58:40.654 INFO kablam!    |
Sep 01 16:58:40.654 INFO kablam!    = note: #[warn(unused_variables)] on by default
Sep 01 16:58:40.654 INFO kablam! 
Sep 01 16:58:40.669 INFO kablam! warning: private type `(dyn ast::Statement + 'static)` in public interface (error E0446)
Sep 01 16:58:40.669 INFO kablam!   --> src/ast.rs:16:5
Sep 01 16:58:40.669 INFO kablam!    |
Sep 01 16:58:40.669 INFO kablam! 16 |     pub statements: Vec<Box<Statement>>
Sep 01 16:58:40.669 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 16:58:40.669 INFO kablam!    |
Sep 01 16:58:40.669 INFO kablam!    = note: #[warn(private_in_public)] on by default
Sep 01 16:58:40.669 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!
Sep 01 16:58:40.670 INFO kablam!    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
Sep 01 16:58:40.670 INFO kablam! 
Sep 01 16:58:40.671 INFO kablam! warning: unused variable: `blah`
Sep 01 16:58:40.671 INFO kablam!   --> src/parser.rs:26:13
Sep 01 16:58:40.671 INFO kablam!    |
Sep 01 16:58:40.671 INFO kablam! 26 |         let blah = lexer.current_token();
Sep 01 16:58:40.671 INFO kablam!    |             ^^^^ help: consider using `_blah` instead
Sep 01 16:58:40.671 INFO kablam!    |
Sep 01 16:58:40.671 INFO kablam!    = note: #[warn(unused_variables)] on by default
Sep 01 16:58:40.672 INFO kablam! 
Sep 01 16:58:40.691 INFO kablam! error[E0502]: cannot borrow `*lexer` as mutable because it is also borrowed as immutable
Sep 01 16:58:40.691 INFO kablam!   --> src/parser.rs:37:18
Sep 01 16:58:40.692 INFO kablam!    |
Sep 01 16:58:40.692 INFO kablam! 26 |         let blah = lexer.current_token();
Sep 01 16:58:40.692 INFO kablam!    |                    ----- immutable borrow occurs here
Sep 01 16:58:40.692 INFO kablam! ...
Sep 01 16:58:40.692 INFO kablam! 37 |         Parser { lexer, current_token, peek_token, errors: Vec::new() }
Sep 01 16:58:40.692 INFO kablam!    |                  ^^^^^ mutable borrow occurs here
Sep 01 16:58:40.692 INFO kablam! 38 |     }
Sep 01 16:58:40.692 INFO kablam!    |     - immutable borrow ends here
Sep 01 16:58:40.692 INFO kablam! 
Sep 01 16:58:40.696 INFO kablam! error: aborting due to previous error
Sep 01 16:58:40.696 INFO kablam! 
Sep 01 16:58:40.697 INFO kablam! For more information about this error, try `rustc --explain E0502`.
Sep 01 16:58:40.702 INFO kablam! error[E0502]: cannot borrow `*lexer` as mutable because it is also borrowed as immutable
Sep 01 16:58:40.702 INFO kablam!   --> src/parser.rs:37:18
Sep 01 16:58:40.702 INFO kablam!    |
Sep 01 16:58:40.702 INFO kablam! 26 |         let blah = lexer.current_token();
Sep 01 16:58:40.702 INFO kablam!    |                    ----- immutable borrow occurs here
Sep 01 16:58:40.702 INFO kablam! ...
Sep 01 16:58:40.703 INFO kablam! 37 |         Parser { lexer, current_token, peek_token, errors: Vec::new() }
Sep 01 16:58:40.703 INFO kablam!    |                  ^^^^^ mutable borrow occurs here
Sep 01 16:58:40.703 INFO kablam! 38 |     }
Sep 01 16:58:40.703 INFO kablam!    |     - immutable borrow ends here
Sep 01 16:58:40.703 INFO kablam! 
Sep 01 16:58:40.705 INFO kablam! error: Could not compile `writing_an_interpreter_in_rust`.
Sep 01 16:58:40.705 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 01 16:58:40.706 INFO kablam! error: aborting due to previous error
Sep 01 16:58:40.706 INFO kablam! 
Sep 01 16:58:40.706 INFO kablam! For more information about this error, try `rustc --explain E0502`.
Sep 01 16:58:40.712 INFO kablam! error: Could not compile `writing_an_interpreter_in_rust`.
Sep 01 16:58:40.712 INFO kablam! 
Sep 01 16:58:40.712 INFO kablam! To learn more, run the command again with --verbose.
Sep 01 16:58:40.714 INFO kablam! su: No module specific data is present
Sep 01 16:58:41.043 INFO running `"docker" "rm" "-f" "6d6d3e199ae3369304556077c58101182ca314107593c3541d02343e0ece0149"`
Sep 01 16:58:41.137 INFO blam! 6d6d3e199ae3369304556077c58101182ca314107593c3541d02343e0ece0149