I've got a program that
compiles fine with the nightly from 2021-12-06 (v1.59.0), but that fails with
the nightly from 2022-01-29 (1.60.0). The catch is that it only fails when
compiled with --release
. (this is using the wasm-unknown-emscripten
target).
After a little searching, I found
cargo-bisect-rustc, which
seems like it should be a useful tool for narrowing down the regression. But
when I try to use it, it complains about not liking the --release
argument:
$ cargo bisect-rustc -vv --start=2021-12-06 -- --release
installing nightly-2021-12-06
cargo for x86_64-unknown-linux-gnu: 6.20 MB / 6.20 MB [====================================] 100.00 % 11.83 MB/s testing...
error: Found argument '--release' which wasn't expected, or isn't valid in this context
USAGE:
cargo [+toolchain] [OPTIONS] [SUBCOMMAND]
For more information try --help
RESULT: nightly-2021-12-06, ===> Yes
uninstalling nightly-2021-12-06
ERROR: the start of the range (nightly-2021-12-06) must not reproduce the regression
...is there a different way to invoke that command, so that it uses
"--release"? Maybe a way to specify the "--release" in .cargo/config
?
Thanks, Greg