error[E0080]: evaluation of `, std::string::String>>::F` failed --> $SRC_DIR/core/src/ptr/mod.rs:LL:COL | = note: calling non-const function ` as Drop>::drop` | note: inside `std::ptr::drop_in_place::> - shim(Some(Vec))` --> $SRC_DIR/core/src/ptr/mod.rs:LL:COL note: inside `std::ptr::drop_in_place::<(Vec, u32)> - shim(Some((Vec, u32)))` --> $SRC_DIR/core/src/ptr/mod.rs:LL:COL note: inside `, String>>::F` --> $DIR/assoc_const.rs:12:31 | LL | const F: u32 = (U::X, 42).1; | ^ note: erroneous constant used --> $DIR/assoc_const.rs:29:13 | LL | let y = , String>>::F; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: erroneous constant used --> $DIR/assoc_const.rs:29:13 | LL | let y = , String>>::F; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ warning: skipping const checks | help: skipping check that does not even have a feature gate --> $DIR/assoc_const.rs:12:20 | LL | const F: u32 = (U::X, 42).1; | ^^^^^^^^^^ error: aborting due to previous error; 1 warning emitted For more information about this error, try `rustc --explain E0080`.