'lookup_item: id not found: 7184' while building q3 #5862
Description
While trying to build q3 from git://github.com/Jeaye/q3.git
w1x@w1x0-dev:~/hak/rust/q3$ RUST_LOG=rustc=1,::rt::backtrace make
rust: task failed at 'lookup_item: id not found: 7184', /home/w1x/hak/rust/rust-0.6/src/librustc/metadata/decoder.rs:91
/home/w1x/bin/../lib/librustrt.so(_ZN9rust_task13begin_failureEPKcS1_m+0x4b)[0x2af367d75ffb]
/home/w1x/bin/../lib/librustrt.so(+0x2aef9)[0x2af367d86ef9]
/home/w1x/bin/../lib/librustrt.so(upcall_fail+0x1b3)[0x2af367d77d93]
/home/w1x/bin/../lib/libcore-c3ca5d77d81b46c1-0.6.so(+0x10550b)[0x2af36616950b]
/home/w1x/bin/../lib/libcore-c3ca5d77d81b46c1-0.6.so(+0x1054b2)[0x2af3661694b2]
/home/w1x/bin/../lib/libcore-c3ca5d77d81b46c1-0.6.so(_ZN3sys12begin_unwind17_61fe198059b9e3fc3_06E+0x71)[0x2af3660b1581]
/home/w1x/bin/../lib/librustc-c84825241471686d-0.6.so(+0x8441fe)[0x2af36785a1fe]
/home/w1x/bin/../lib/librustc-c84825241471686d-0.6.so(_ZN8metadata7decoder25get_method_names_if_trait16_ba57026bb43b2343_06E+0x5c)[0x2af36786589c]
/home/w1x/bin/../lib/librustc-c84825241471686d-0.6.so(_ZN8metadata7csearch25get_method_names_if_trait17_d5b64d7f6d4879b23_06E+0xc9)[0x2af3673f8319]
/home/w1x/bin/../lib/librustc-c84825241471686d-0.6.so(_ZN6middle7resolve14__extensions__10meth_4361819handle_external_def15_da17ae231227133_06E+0x8ab)[0x2af3673f5f2b]
/home/w1x/bin/../lib/librustc-c84825241471686d-0.6.so(+0x8b8fc4)[0x2af3678cefc4]
/home/w1x/bin/../lib/librustc-c84825241471686d-0.6.so(+0x3e3720)[0x2af3673f9720]
/home/w1x/bin/../lib/librustc-c84825241471686d-0.6.so(+0x849772)[0x2af36785f772]
/home/w1x/bin/../lib/libstd-4782a756585a81-0.6.so(_ZN4ebml6reader11tagged_docs17_dc1a836cb512bc9f3_06E+0xe6)[0x2af366652d36]
/home/w1x/bin/../lib/librustc-c84825241471686d-0.6.so(_ZN8metadata7decoder9each_path17_5499d75c1ab14cc83_06E+0x17f)[0x2af36785f32f]
/home/w1x/bin/../lib/librustc-c84825241471686d-0.6.so(_ZN8metadata7csearch9each_path17_e1e32cf11ae45a9e3_06E+0xe9)[0x2af3673f86a9]
/home/w1x/bin/../lib/librustc-c84825241471686d-0.6.so(_ZN6middle7resolve14__extensions__10meth_4358638build_reduced_graph_for_external_crate17_4edaf22381edc9c63_06E+0xb3)[0x2af3673f3483]
/home/w1x/bin/../lib/librustc-c84825241471686d-0.6.so(_ZN6middle7resolve14__extensions__10meth_4305633build_reduced_graph_for_view_item17_d568ae1024cd94323_06E+0x38e)[0x2af3673e2b5e]
/home/w1x/bin/../lib/librustc-c84825241471686d-0.6.so(+0x3cc76b)[0x2af3673e276b]
/home/w1x/bin/../lib/librustc-c84825241471686d-0.6.so(+0x3cd49a)[0x2af3673e349a]
/home/w1x/bin/../lib/librustc-c84825241471686d-0.6.so(_ZN6middle7resolve14__extensions__10meth_4267219build_reduced_graph15_c4de63b748e03d3_06E+0x870)[0x2af3673d5610]
/home/w1x/bin/../lib/librustc-c84825241471686d-0.6.so(_ZN6middle7resolve14__extensions__10meth_426707resolve15_c4de63b748e03d3_06E+0x33)[0x2af3673d4d23]
/home/w1x/bin/../lib/librustc-c84825241471686d-0.6.so(_ZN6middle7resolve13resolve_crate17_b9f7787e2dc6214f3_06E+0x81)[0x2af367441cb1]
/home/w1x/bin/../lib/librustc-c84825241471686d-0.6.so(_ZN6driver6driver12compile_rest17_b2b258b84b35f3533_06E+0xed3)[0x2af36788b343]
/home/w1x/bin/../lib/librustc-c84825241471686d-0.6.so(+0x8b8fc4)[0x2af3678cefc4]
/home/w1x/bin/../lib/librustc-c84825241471686d-0.6.so(_ZN6driver6driver12compile_upto17_12335154b455986e3_06E+0x108)[0x2af367890998]
/home/w1x/bin/../lib/librustc-c84825241471686d-0.6.so(+0x8b8fc4)[0x2af3678cefc4]
/home/w1x/bin/../lib/librustc-c84825241471686d-0.6.so(_ZN6driver6driver13compile_input15_bb29edf7a232863_06E+0xca)[0x2af367890dda]
/home/w1x/bin/../lib/librustc-c84825241471686d-0.6.so(_ZN12run_compiler17_64d52739a36d169c3_06E+0x20aa)[0x2af3678c045a]
/home/w1x/bin/../lib/librustc-c84825241471686d-0.6.so(+0x8b6a91)[0x2af3678cca91]
/home/w1x/bin/../lib/librustc-c84825241471686d-0.6.so(+0x8b32bc)[0x2af3678c92bc]
/home/w1x/bin/../lib/librustc-c84825241471686d-0.6.so(+0x8b8fc4)[0x2af3678cefc4]
/home/w1x/bin/../lib/libcore-c3ca5d77d81b46c1-0.6.so(+0xcdfbe)[0x2af366131fbe]
/home/w1x/bin/../lib/libcore-c3ca5d77d81b46c1-0.6.so(+0x14dbe4)[0x2af3661b1be4]
/home/w1x/bin/../lib/librustrt.so(_Z18task_start_wrapperP10spawn_args+0x24)[0x2af367d76844]
error: internal compiler error: unexpected failure
note: the compiler hit an unexpected failure path. this is a bug
note: try running with RUST_LOG=rustc=1,::rt::backtrace to get further details and report the results to github.com/mozilla/rust/issues
rust: task failed at 'explicit failure', /home/w1x/hak/rust/rust-0.6/src/librustc/rustc.rc:357
/home/w1x/bin/../lib/librustrt.so(_ZN9rust_task13begin_failureEPKcS1_m+0x4b)[0x2af367d75ffb]
/home/w1x/bin/../lib/librustrt.so(+0x2aef9)[0x2af367d86ef9]
/home/w1x/bin/../lib/librustrt.so(upcall_fail+0x1b3)[0x2af367d77d93]
/home/w1x/bin/../lib/libcore-c3ca5d77d81b46c1-0.6.so(+0x10550b)[0x2af36616950b]
/home/w1x/bin/../lib/libcore-c3ca5d77d81b46c1-0.6.so(+0x1054b2)[0x2af3661694b2]
/home/w1x/bin/../lib/libcore-c3ca5d77d81b46c1-0.6.so(_ZN3sys12begin_unwind17_61fe198059b9e3fc3_06E+0x71)[0x2af3660b1581]
/home/w1x/bin/../lib/libcore-c3ca5d77d81b46c1-0.6.so(+0x14dbe4)[0x2af3661b1be4]
/home/w1x/bin/../lib/librustc-c84825241471686d-0.6.so(_ZN7monitor17_78935df9ff9e1afa3_06E+0x1577)[0x2af3678c2a87]
/home/w1x/bin/../lib/librustc-c84825241471686d-0.6.so(+0x8b8fc4)[0x2af3678cefc4]
/home/w1x/bin/../lib/librustc-c84825241471686d-0.6.so(_ZN4main15_c4de63b748e03d3_06E+0x7e)[0x2af3678cebde]
/home/w1x/bin/../lib/librustrt.so(_Z18task_start_wrapperP10spawn_args+0x24)[0x2af367d76844]
rust: domain main @0xfd63c0 root task failed
make: *** [all] Error 101