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==25455== Massif, a heap profiler
==25455== Copyright (C) 2003-2015, and GNU GPL'd, by Nicholas Nethercote
==25455== Using Valgrind-3.12.0 and LibVEX; rerun with -h for copyright info
==25455== Command: rustc --crate-name syn src/lib.rs --crate-type lib --emit=dep-info,link -C debuginfo=2 --cfg feature="clone-impls" --cfg feature="default" --cfg feature="derive" --cfg feature="parsing" --cfg feature="printing" --cfg feature="quote" -C metadata=37ed4cbef60aaf81 -C extra-filename=-37ed4cbef60aaf81 --out-dir /home/nmatsakis/versioned/rust-9/regr/syn/target/debug/deps -C incremental=/home/nmatsakis/versioned/rust-9/regr/syn/target/debug/incremental -L dependency=/home/nmatsakis/versioned/rust-9/regr/syn/target/debug/deps --extern unicode_xid=/home/nmatsakis/versioned/rust-9/regr/syn/target/debug/deps/libunicode_xid-b1ae62631230ceec.rlib --extern quote=/home/nmatsakis/versioned/rust-9/regr/syn/target/debug/deps/libquote-3300daee4b74fe1f.rlib --extern proc_macro2=/home/nmatsakis/versioned/rust-9/regr/syn/target/debug/deps/libproc_macro2-4b1ce6d50004054c.rlib
==25455== 
thread 'main' panicked at 'internal error: entered unreachable code: not all instructions were compiled! found uncompiled instruction: Compiled(Bytes(InstBytes { goto: 12, start: 101, end: 101 }))', target/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-0.1.73/src/compile.rs:743
note: Run with `RUST_BACKTRACE=1` for a backtrace.
==25455==