Sep 19 19:52:29.943 INFO checking rfcalcs-0.1.1 against master#ff6422d7a392acfc8af28994d65af2bbaecea4f6 for pr-54346
Sep 19 19:52:29.943 INFO running: cargo +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets
Sep 19 19:52:29.943 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-54346/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54346/worker-5/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/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=1000" "-e" "CMD=cargo +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 19 19:52:30.121 INFO blam! fb671bc34b04b8d20e1ee67057e02eff843b4321ca98d7bed57677cca0e15ae4
Sep 19 19:52:30.123 INFO running `"docker" "start" "-a" "fb671bc34b04b8d20e1ee67057e02eff843b4321ca98d7bed57677cca0e15ae4"`
Sep 19 19:52:31.469 INFO kablam! usermod: no changes
Sep 19 19:52:31.493 INFO kablam!     Checking rfcalcs v0.1.1 (/source)
Sep 19 19:52:31.693 INFO kablam! warning: the feature `use_extern_macros` has been stable since 1.30.0 and no longer requires an attribute to enable
Sep 19 19:52:31.693 INFO kablam!  --> src/lib.rs:1:12
Sep 19 19:52:31.693 INFO kablam!   |
Sep 19 19:52:31.693 INFO kablam! 1 | #![feature(use_extern_macros)]
Sep 19 19:52:31.693 INFO kablam!   |            ^^^^^^^^^^^^^^^^^
Sep 19 19:52:31.693 INFO kablam!   |
Sep 19 19:52:31.693 INFO kablam!   = note: #[warn(stable_features)] on by default
Sep 19 19:52:31.693 INFO kablam! 
Sep 19 19:52:31.713 INFO kablam! error[E0658]: attributes on expressions are experimental. (see issue #15701)
Sep 19 19:52:31.713 INFO kablam!   --> src/lib.rs:33:9
Sep 19 19:52:31.713 INFO kablam!    |
Sep 19 19:52:31.714 INFO kablam! 33 |         /// Test against precalculated results
Sep 19 19:52:31.714 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 19 19:52:31.714 INFO kablam!    |
Sep 19 19:52:31.714 INFO kablam!    = help: add #![feature(stmt_expr_attributes)] to the crate attributes to enable
Sep 19 19:52:31.714 INFO kablam!    = help: `///` is for documentation comments. For a plain comment, use `//`.
Sep 19 19:52:31.714 INFO kablam! 
Sep 19 19:52:31.717 INFO kablam! error: aborting due to previous error
Sep 19 19:52:31.717 INFO kablam! 
Sep 19 19:52:31.717 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 19 19:52:31.721 INFO kablam! error: Could not compile `rfcalcs`.
Sep 19 19:52:31.721 INFO kablam! 
Sep 19 19:52:31.721 INFO kablam! To learn more, run the command again with --verbose.
Sep 19 19:52:31.723 INFO kablam! su: No module specific data is present
Sep 19 19:52:32.353 INFO running `"docker" "rm" "-f" "fb671bc34b04b8d20e1ee67057e02eff843b4321ca98d7bed57677cca0e15ae4"`
Sep 19 19:52:32.436 INFO blam! fb671bc34b04b8d20e1ee67057e02eff843b4321ca98d7bed57677cca0e15ae4