Closed
Description
I'm trying to port the minifb crate to WebAssembly: repo.
The last code I added was:
extern crate lazy_static;
I tried to run the wasm.rs example with the following command:
export RUST_BACKTRACE=1 && cargo build --example wasm --target wasm32-unknown-unknown
I expected to see this happen: A reasonable error message.
Instead, this happened: I got an unexpected panic.
Meta
rustc --version --verbose:
rustc 1.25.0-nightly (15a1e2844 2018-01-20)
binary: rustc
commit-hash: 15a1e2844dfea7850be5c6c901b67ceff370b0eb
commit-date: 2018-01-20
host: x86_64-unknown-linux-gnu
release: 1.25.0-nightly
LLVM version: 4.0
Backtrace:
thread 'rustc' panicked at 'assertion failed: `(left == right)`
left: `2`,
right: `1`', librustc_trans/back/link.rs:1403:5
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
stack backtrace:
0: std::sys::unix::backtrace::tracing::imp::unwind_backtrace
at libstd/sys/unix/backtrace/tracing/gcc_s.rs:49
1: std::sys_common::backtrace::print
at libstd/sys_common/backtrace.rs:68
at libstd/sys_common/backtrace.rs:57
2: std::panicking::default_hook::{{closure}}
at libstd/panicking.rs:380
3: std::panicking::default_hook
at libstd/panicking.rs:390
4: std::panicking::rust_panic_with_hook
at libstd/panicking.rs:576
5: std::panicking::begin_panic
at libstd/panicking.rs:537
6: std::panicking::begin_panic_fmt
at libstd/panicking.rs:521
7: rustc_trans::back::link::link_natively
8: rustc_trans::back::link::link_binary
9: <rustc_trans::LlvmTransCrate as rustc_trans_utils::trans_crate::TransCrate>::link_binary
10: rustc_driver::driver::compile_input
11: rustc_driver::run_compiler
error: Could not compile `minifb`.