Fails to compile with asan on nightly

[changhe3]

~$ RUSTFLAGS=-Zsanitizer=address cargo test
   Compiling proc-macro2 v1.0.43
   Compiling unicode-ident v1.0.3
   Compiling quote v1.0.21
   Compiling syn v1.0.99
   Compiling ext-trait-proc_macros v1.0.1
   Compiling ext-trait v1.0.1
error: /.../target/debug/deps/libext_trait_proc_macros-7a93cbfff318ae9a.so: undefined symbol: __asan_option_detect_stack_use_after_return
  --> ~/.cargo/registry/src/github.1485827954.workers.dev-1ecc6299db9ec823/ext-trait-1.0.1/src/lib.rs:35:11
   |
35 | pub use ::ext_trait_proc_macros::extension;
   |           ^^^^^^^^^^^^^^^^^^^^^

error: could not compile `ext-trait` due to previous error

[danielhenrymantilla]

This seems to be rust-lang/cargo#10666

Locate the target triplet for your host machine, such as by doing:

rustc -vV | sed -nE 's/^host: (.*)/\1/p'  # host-triplet

and then pass --target host-triplet to your compilation command.

One-liner:

RUSTFLAGS=-Zsanitizer=address cargo test --target "$(rustc -vV | sed -nE 's/^host: (.*)/\1/p')"

[danielhenrymantilla]

I'm gonna close this since it's out of the scope of this crate / it's Cargo's job to fix the need for the --target workaround, but we can keep nonetheless keep discussing over here 🙂