Build Errors with 1.0.0

errors

/home/sdwilsh/code/rustc-1.1.0/src/libcore/lib.rs:50:21: 50:47 error: unstable feature
/home/sdwilsh/code/rustc-1.1.0/src/libcore/lib.rs:50 #![cfg_attr(stage0, feature(custom_attribute))]
                                                                         ^~~~~~~~~~~~~~~~~~~~~~~~~~
note: this feature may not be used in the stable release channel
/home/sdwilsh/code/rustc-1.1.0/src/libcore/lib.rs:61:1: 61:20 error: unstable feature
/home/sdwilsh/code/rustc-1.1.0/src/libcore/lib.rs:61 #![feature(no_std)]
                                                        ^~~~~~~~~~~~~~~~~~~
note: this feature may not be used in the stable release channel
/home/sdwilsh/code/rustc-1.1.0/src/libcore/lib.rs:66:1: 66:36 error: unstable feature
/home/sdwilsh/code/rustc-1.1.0/src/libcore/lib.rs:66 #![feature(intrinsics, lang_items)]
                                                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
note: this feature may not be used in the stable release channel
/home/sdwilsh/code/rustc-1.1.0/src/libcore/lib.rs:67:1: 67:30 error: unstable feature
/home/sdwilsh/code/rustc-1.1.0/src/libcore/lib.rs:67 #![feature(on_unimplemented)]
                                                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
note: this feature may not be used in the stable release channel
/home/sdwilsh/code/rustc-1.1.0/src/libcore/lib.rs:68:1: 68:18 error: unstable feature
/home/sdwilsh/code/rustc-1.1.0/src/libcore/lib.rs:68 #![feature(simd)]
                                                        ^~~~~~~~~~~~~~~~~
note: this feature may not be used in the stable release channel
/home/sdwilsh/code/rustc-1.1.0/src/libcore/lib.rs:69:1: 69:24 error: unstable feature
/home/sdwilsh/code/rustc-1.1.0/src/libcore/lib.rs:69 #![feature(staged_api)]
                                                        ^~~~~~~~~~~~~~~~~~~~~~~
note: this feature may not be used in the stable release channel
/home/sdwilsh/code/rustc-1.1.0/src/libcore/lib.rs:70:1: 70:30 error: unstable feature
/home/sdwilsh/code/rustc-1.1.0/src/libcore/lib.rs:70 #![feature(unboxed_closures)]
                                                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
note: this feature may not be used in the stable release channel
/home/sdwilsh/code/rustc-1.1.0/src/libcore/lib.rs:71:1: 71:25 error: unstable feature
/home/sdwilsh/code/rustc-1.1.0/src/libcore/lib.rs:71 #![feature(rustc_attrs)]
                                                        ^~~~~~~~~~~~~~~~~~~~~~~~
note: this feature may not be used in the stable release channel
/home/sdwilsh/code/rustc-1.1.0/src/libcore/lib.rs:72:1: 72:34 error: unstable feature
/home/sdwilsh/code/rustc-1.1.0/src/libcore/lib.rs:72 #![feature(optin_builtin_traits)]
                                                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
note: this feature may not be used in the stable release channel
/home/sdwilsh/code/rustc-1.1.0/src/libcore/lib.rs:73:1: 73:25 error: unstable feature
/home/sdwilsh/code/rustc-1.1.0/src/libcore/lib.rs:73 #![feature(fundamental)]
                                                        ^~~~~~~~~~~~~~~~~~~~~~~~
note: this feature may not be used in the stable release channel
/home/sdwilsh/code/rustc-1.1.0/src/libcore/lib.rs:74:1: 74:27 error: unstable feature
/home/sdwilsh/code/rustc-1.1.0/src/libcore/lib.rs:74 #![feature(concat_idents)]
                                                        ^~~~~~~~~~~~~~~~~~~~~~~~~~
note: this feature may not be used in the stable release channel
/home/sdwilsh/code/rustc-1.1.0/src/libcore/lib.rs:75:1: 75:21 error: unstable feature
/home/sdwilsh/code/rustc-1.1.0/src/libcore/lib.rs:75 #![feature(reflect)]
                                                        ^~~~~~~~~~~~~~~~~~~~
note: this feature may not be used in the stable release channel
/home/sdwilsh/code/rustc-1.1.0/src/libcore/lib.rs:76:1: 76:30 error: unstable feature
/home/sdwilsh/code/rustc-1.1.0/src/libcore/lib.rs:76 #![feature(custom_attribute)]
                                                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
note: this feature may not be used in the stable release channel
error: aborting due to 13 previous errors