(gdb) file rustc
Reading symbols from rustc...(no debugging symbols found)...done.

(gdb) run --crate-type lib src/lib.rs
Starting program: /usr/bin/rustc --crate-type lib src/lib.rs
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[New Thread 0xb3bff8c0 (LWP 1940)]

Program received signal SIGILL, Illegal instruction.
[Switching to Thread 0xb3bff8c0 (LWP 1940)]
0xb52be540 in oom::h5b0aebcb5d90c61dmQa::v0.11.0.pre ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustrt-d8560cb2-0.11.0-pre.so

(gdb) bt
#0  0xb52be540 in oom::h5b0aebcb5d90c61dmQa::v0.11.0.pre ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustrt-d8560cb2-0.11.0-pre.so
#1  0xb567ee7d in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#2  0xb567eda7 in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#3  0xb5682e4f in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#12 0xb5c024ff in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#13 0xb5beb0b2 in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#14 0xb5c0230c in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#15 0xb5beab2e in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#16 0xb5c0dfbf in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#17 0xb5beb0b2 in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#18 0xb5c0d9cc in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#19 0xb5beab2e in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#20 0xb5c0d91b in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#21 0xb5be8ede in ?? ()
---Type <return> to continue, or q <return> to quit---
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#22 0xb5c0d6ca in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#23 0xb5be88cf in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#24 0xb5bf23f4 in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#25 0xb5bf1fee in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#26 0xb5c0e644 in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#27 0xb5beb0b2 in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#28 0xb5c0d9cc in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#29 0xb5beab2e in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#30 0xb5c0d91b in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#31 0xb5be8ede in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#32 0xb5c0d6ca in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#33 0xb5be88cf in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#34 0xb5bf23f4 in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#35 0xb5bf1fee in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#36 0xb5c0ba7f in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#37 0xb5be8ede in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#38 0xb5c0b9f5 in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#39 0xb5be88cf in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#40 0xb5bf7941 in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#41 0xb5c2a8bd in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#42 0xb5c2c675 in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
---Type <return> to continue, or q <return> to quit---
#43 0xb5be8ede in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#44 0xb5c2c152 in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#45 0xb5be88cf in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#46 0xb5790a5c in middle::astencode::encode_inlined_item::h836cce1026d13099xnT::v0.11.0.pre () from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#47 0xb57901fc in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#48 0xb5f142ec in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#49 0xb5f18f2c in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#50 0xb5f1dbde in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#51 0xb5de989c in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#52 0xb5de9863 in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#53 0xb5de9863 in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#54 0xb5f1fd90 in metadata::encoder::EncodeVisitor$LT$$x27a$C$$x20$x27b$GT$.visit..Visitor$LT$$LP$$RP$$GT$::visit_item::had03b43c78ddf1a4MIj::v0.11.0.pre ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#55 0xb5f1fbe0 in metadata::encoder::EncodeVisitor$LT$$x27a$C$$x20$x27b$GT$.visit..Visitor$LT$$LP$$RP$$GT$::visit_item::had03b43c78ddf1a4MIj::v0.11.0.pre ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#56 0xb5f2a050 in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#57 0xb57913b4 in metadata::encoder::encode_metadata::hdc667508a6731daa0lk::v0.11.0.pre
    () from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#58 0xb578f8ba in middle::trans::base::write_metadata::hb9e8d07e86346afbXHr::v0.11.0.pre () from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#59 0xb5791fb2 in middle::trans::base::trans_crate::h7f4f7abc5a8eeadaJMr::v0.11.0.pre
    () from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#60 0xb5f7657d in driver::driver::phase_4_translate_to_llvm::h86eefe169291e34e9Aq::v0.11.0.pre () from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#61 0xb5f6de5d in driver::driver::compile_input::h6daef379ffb61ee9Deq::v0.11.0.pre ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#62 0xb6032098 in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#63 0xb602f652 in ?? ()
---Type <return> to continue, or q <return> to quit---
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#64 0xb6043cd6 in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#65 0xb6043b77 in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustc-d252d482-0.11.0-pre.so
#66 0xb7fa62b8 in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/libnative-1fb5e2c0-0.11.0-pre.so
#67 0xb52adb34 in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustrt-d8560cb2-0.11.0-pre.so
#68 0xb530e133 in rust_try ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustrt-d8560cb2-0.11.0-pre.so
#69 0xb52aab0d in unwind::try::h943ce541646d2f81BNd::v0.11.0.pre ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustrt-d8560cb2-0.11.0-pre.so
#70 0xb52aa89c in task::Task::run::hc5f5bd78b212fc60XYc::v0.11.0.pre ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustrt-d8560cb2-0.11.0-pre.so
#71 0xb7fa6145 in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/libnative-1fb5e2c0-0.11.0-pre.so
#72 0xb52ad12c in ?? ()
   from /usr/lib/rust/rust-nightly/bin/../lib/librustrt-d8560cb2-0.11.0-pre.so
#73 0xb4d84f70 in start_thread (arg=0xb3bff8c0) at pthread_create.c:312
#74 0xb518870e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:129