$ rustup update nightly
… latest update on 2018-08-14, rust version 1.30.0-nightly (d5a448b3f 2018-08-13) …
$ cargo test
fail because the “name” section is not in the WASM binary
This can be viewed with:
$ cd tests
$ rustc +nightly --target wasm32-unknown-unknown -O -g ./hello.rs
$ twiggy top hello.wasm | head -n 15
Shallow Bytes │ Shallow % │ Item
───────────────┼───────────┼──────────────────────
3460 ┊ 6.68% ┊ code[119]
3169 ┊ 6.12% ┊ data[0]
1581 ┊ 3.05% ┊ code[170]
1304 ┊ 2.52% ┊ code[177]
1210 ┊ 2.34% ┊ code[154]
1113 ┊ 2.15% ┊ code[165]
942 ┊ 1.82% ┊ code[168]
926 ┊ 1.79% ┊ code[124]
747 ┊ 1.44% ┊ code[122]
710 ┊ 1.37% ┊ code[148]
696 ┊ 1.34% ┊ code[184]
695 ┊ 1.34% ┊ code[19]
694 ┊ 1.34% ┊ code[149]The debug symbols are missing.
If we remove the -O option, it's working. I suspect this is a regression in rustc.
This can be viewed with:
The debug symbols are missing.
If we remove the
-Ooption, it's working. I suspect this is a regression inrustc.