Sep 02 02:46:39.527 INFO checking rfcalcs-0.1.1 against try#952c7dbfa2628309f557b367929ffc17af20b332 for pr-53851
Sep 02 02:46:39.527 INFO running: cargo +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets
Sep 02 02:46:39.527 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53851/try#952c7dbfa2628309f557b367929ffc17af20b332:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-3/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 02 02:46:39.770 INFO blam! 1c2d9a8f5cb1d558ea70322c277dee88452b9d063601678bb88acb617a4bc069
Sep 02 02:46:39.772 INFO running `"docker" "start" "-a" "1c2d9a8f5cb1d558ea70322c277dee88452b9d063601678bb88acb617a4bc069"`
Sep 02 02:46:40.516 INFO kablam!     Checking rfcalcs v0.1.1 (file:///source)
Sep 02 02:46:40.578 INFO kablam! error[E0658]: attributes on expressions are experimental. (see issue #15701)
Sep 02 02:46:40.578 INFO kablam!   --> src/lib.rs:33:9
Sep 02 02:46:40.578 INFO kablam!    |
Sep 02 02:46:40.578 INFO kablam! 33 |         /// Test against precalculated results
Sep 02 02:46:40.578 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 02 02:46:40.578 INFO kablam!    |
Sep 02 02:46:40.578 INFO kablam!    = help: add #![feature(stmt_expr_attributes)] to the crate attributes to enable
Sep 02 02:46:40.578 INFO kablam!    = help: `///` is for documentation comments. For a plain comment, use `//`.
Sep 02 02:46:40.578 INFO kablam! 
Sep 02 02:46:40.958 INFO kablam! error: aborting due to previous error
Sep 02 02:46:40.958 INFO kablam! 
Sep 02 02:46:40.958 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 02 02:46:40.987 INFO kablam! error: Could not compile `rfcalcs`.
Sep 02 02:46:40.987 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 02 02:46:41.024 INFO kablam! warning: the feature `use_extern_macros` has been stable since 1.30.0 and no longer requires an attribute to enable
Sep 02 02:46:41.024 INFO kablam!  --> src/lib.rs:1:12
Sep 02 02:46:41.024 INFO kablam!   |
Sep 02 02:46:41.024 INFO kablam! 1 | #![feature(use_extern_macros)]
Sep 02 02:46:41.024 INFO kablam!   |            ^^^^^^^^^^^^^^^^^
Sep 02 02:46:41.024 INFO kablam!   |
Sep 02 02:46:41.024 INFO kablam!   = note: #[warn(stable_features)] on by default
Sep 02 02:46:41.024 INFO kablam! 
Sep 02 02:46:41.072 INFO kablam! error: build failed
Sep 02 02:46:41.074 INFO kablam! su: No module specific data is present
Sep 02 02:46:41.563 INFO running `"docker" "rm" "-f" "1c2d9a8f5cb1d558ea70322c277dee88452b9d063601678bb88acb617a4bc069"`
Sep 02 02:46:41.660 INFO blam! 1c2d9a8f5cb1d558ea70322c277dee88452b9d063601678bb88acb617a4bc069