gistfile1.txt

   Compiling std v0.0.0 (…/rust/src/libstd)
error: unused attribute=============================================>  ] 35/36: std
   --> src/libstd/panic.rs:103:1
    |
103 | / #[rustc_on_unimplemented(
104 | |     message="the type `{Self}` may not be safely transferred across an unwind boundary",
105 | |     label="`{Self}` may not be safely transferred across an unwind boundary",
106 | | )]
    | |__^
    |
    = note: `-D unused-attributes` implied by `-D warnings`

error: unused attribute
   --> src/libstd/panic.rs:121:1
    |
121 | / #[rustc_on_unimplemented(
122 | |     message="the type `{Self}` may contain interior mutability and a reference may not be safely \
123 | |              transferrable across a catch_unwind boundary",
124 | |     label="`{Self}` may contain interior mutability and a reference may not be safely \
125 | |            transferrable across a catch_unwind boundary",
126 | | )]
    | |__^

error: unused attribute
    --> src/libstd/process.rs:1577:1
     |
1577 | / #[rustc_on_unimplemented(
1578 | |   message="`main` has invalid return type `{Self}`",
1579 | |   label="`main` can only return types that implement `{Termination}`")]
     | |_______________________________________________________________________^

error: aborting due to 3 previous errors

error: Could not compile `std`.