snapshot to report rustc bug

fpscribe$ make
rustc   -O tame.rs
rustc   -O footpedal.rs -L .
error: internal compiler error: unexpected failure
note: the compiler hit an unexpected failure path. this is a bug.
note: we would appreciate a bug report: http://static.rust-lang.org/doc/master/complement-bugreport.html
note: run with `RUST_BACKTRACE=1` for a backtrace
task 'rustc' failed at 'lookup_item: id not found: 148798', /build/buildd/rust-nightly-201404060405~0651d27~precise/src/librustc/metadata/decoder.rs:95

--HG--
branch : taming
update to modern rust: ~Rd: Send => Box<Rd+Send>,
 - phase(syntax) => phase(plugin)
 - use Reader to get impls
 - ~str becomes String; ~[T] becomes Vec<T>a
 - can't move out of args(); gotta clone or something.
 - open_rd() doesn't get an implicit Reader impl; gotta unwrap

--HG--
branch : taming
avoid cloning argv[1]

--HG--
branch : taming