'exception Lexer.Lex_err("bad trailing utf-8 byte", _)' compiling test/run-pass/utf8.rs

[jorendorff]

$ git clone http://github.com/graydon/rust.git rust-2
$ cd rust-2/src
$ make && make check
...
compile [x86]: test/run-pass/uint.rs
compile [x86]: test/run-pass/unit.rs
compile [x86]: test/run-pass/user.rs
compile [x86]: test/run-pass/utf8.rs
Fatal error: exception Lexer.Lex_err("bad trailing utf-8 byte", _)
Raised at file "boot/fe/lexer.mll", line 17, characters 12-30
Called from file "boot/fe/parser.ml", line 240, characters 22-50
Called from file "boot/fe/item.ml", line 87, characters 10-17
Called from file "boot/fe/parser.ml", line 164, characters 13-17
Called from file "boot/fe/item.ml", line 110, characters 14-68
Called from file "boot/fe/parser.ml", line 164, characters 13-17
Called from file "boot/fe/item.ml", line 464, characters 12-61
Called from file "boot/fe/parser.ml", line 164, characters 13-17
Called from file "boot/fe/parser.ml", line 312, characters 15-25
Called from file "boot/fe/parser.ml", line 164, characters 13-17
Called from file "boot/fe/item.ml", line 66, characters 8-113
Called from file "boot/fe/parser.ml", line 164, characters 13-17
Called from file "boot/fe/item.ml", line 678, characters 15-45
Called from file "boot/fe/parser.ml", line 164, characters 13-17
Called from file "boot/fe/item.ml", line 806, characters 24-75
Called from file "boot/fe/item.ml", line 1151, characters 28-45
Called from file "boot/fe/cexp.ml", line 736, characters 22-49
Called from file "boot/fe/cexp.ml", line 598, characters 4-12
Called from file "boot/driver/main.ml", line 255, characters 14-119
Called from file "boot/driver/session.ml", line 60, characters 10-17
Called from file "boot/driver/main.ml", line 242, characters 2-1697
make: *** [test/run-pass/utf8.x86] Error 2

The UTF-8 in the test file looks fine to me.

[graydon]

Huh, odd. I've not seen that before. Can you describe your current platform? OS, ocaml versions, that kind of thing?

[jorendorff]

I'm on OS X 10.5.8. rustboot generates good executables.

~/dev/rust/src$ g++ -v
Using built-in specs.
Target: i686-apple-darwin9
Configured with: /var/tmp/gcc/gcc-5488~2/src/configure --disable-checking -enable-werror --prefix=/usr --mandir=/share/man --enable-languages=c,objc,c++,obj-c++ --program-transform-name=/^[cg][^.-]*$/s/$/-4.0/ --with-gxx-include-dir=/include/c++/4.0.0 --with-slibdir=/usr/lib --build=i686-apple-darwin9 --with-arch=apple --with-tune=generic --host=i686-apple-darwin9 --target=i686-apple-darwin9
Thread model: posix
gcc version 4.0.1 (Apple Inc. build 5488)

~/dev/rust/src$ ocaml -version
The Objective Caml toplevel, version 3.11.2

~/dev/rust/src$ ocamlc -v
The Objective Caml compiler, version 3.11.2
Standard library directory: /opt/local/lib/ocaml

~/dev/rust/src$ uname -a
Darwin mozmac-2.local 9.8.0 Darwin Kernel Version 9.8.0: Wed Jul 15 16:55:01 PDT 2009; root:xnu-1228.15.4~1/RELEASE_I386 i386

[graydon]

Can you still reproduce this? I've seen nothing like this since you reported it.

[brson]

Closing rustboot bug