problem with common lisp

[Adam Kandur]

hi everyone! 
recently i started getting this error when i try to build any sbcl package:
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starting phase `build'
Invoking sbcl: 
"/gnu/store/48v5srksa9nkp4hh527l6rb08pigy1bw-sbcl-2.0.9/bin/sbcl" 
"--non-interactive" "--eval" "(require :asdf)" "--eval" "(asdf:load-asd 
(truename 
\"/gnu/store/fgfag09f1amsk82bs6jmg9h4rv6hqb94-sbcl-deploy-0.0.0-1.59fd497/share/common-lisp/sbcl-source/deploy/deploy.asd\")
 :name \"deploy\")" "--eval" "(asdf:operate (quote asdf:compile-bundle-op) 
\"deploy\")" 
This is SBCL 2.0.9, an implementation of ANSI Common Lisp.
More information about SBCL is available at <http://www.sbcl.org/>.

SBCL is free software, provided as is, with absolutely no warranty.
It is mostly in the public domain; some portions are provided under
BSD-style licenses.  See the CREDITS and COPYING files in the
distribution for more information.
fatal error encountered in SBCL pid 15 tid 15:
Unhandled SIGILL at 0x52000e9d.

Error opening /dev/tty: No such device or address
Welcome to LDB, a low-level debugger for the Lisp runtime environment.
ldb> command "/gnu/store/48v5srksa9nkp4hh527l6rb08pigy1bw-sbcl-2.0.9/bin/sbcl" 
"--non-interactive" "--eval" "(require :asdf)" "--eval" "(asdf:load-asd 
(truename 
\"/gnu/store/fgfag09f1amsk82bs6jmg9h4rv6hqb94-sbcl-deploy-0.0.0-1.59fd497/share/common-lisp/sbcl-source/deploy/deploy.asd\")
 :name \"deploy\")" "--eval" "(asdf:operate (quote asdf:compile-bundle-op) 
\"deploy\")" failed with status 1
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dont understand what went wrong, package definitions are unchanged