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Request "-Z unstable-options" for unstable options

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Explicitly requests the "-Z unstable-options" flag if someone attempts to use
a cargo option gated by it. This enhances discoverability, particularly in the
instance where the user is on the nightly compiler but isn't using the flag.
This commit is contained in:
Jubilee
2020-03-23 22:54:06 -07:00
committed by GitHub
parent 342c5f33d0
commit eaa6488ca7
1 changed files with 1 additions and 1 deletions
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src/libtest/cli.rs
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@@ -213,7 +213,7 @@ macro_rules! unstable_optflag {
let opt = $matches.opt_present($option_name); let opt = $matches.opt_present($option_name);
if !$allow_unstable && opt { if !$allow_unstable && opt {
return Err(format!( return Err(format!(
"The \"{}\" flag is only accepted on the nightly compiler", "The \"{}\" flag is only accepted on the nightly compiler with -Z unstable-options",
$option_name $option_name
)); ));
} }