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Print note when trying to use unstable --print target-spec-json #41683

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jethrogb opened this issue May 1, 2017 · 0 comments
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Print note when trying to use unstable --print target-spec-json #41683

jethrogb opened this issue May 1, 2017 · 0 comments
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A-frontend Area: frontend (errors, parsing and HIR)

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@jethrogb
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jethrogb commented May 1, 2017

#38061 introduced --print target-spec-json but it's a little hard to find out how to use it:

Current:

$ rustc +nightly --print target-spec-json
error: unknown print request `target-spec-json`

Expected:

$ rustc +nightly --print target-spec-json
error: the `-Z unstable-options` flag must also be passed to enable the print request `target-spec-json`
@Mark-Simulacrum Mark-Simulacrum added the A-frontend Area: frontend (errors, parsing and HIR) label Jun 22, 2017
@zackmdavis zackmdavis mentioned this issue Jul 15, 2017
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zackmdavis added a commit to zackmdavis/rust that referenced this issue Jul 19, 2017
@zackmdavis
explanatory error on --print target-spec-json without unstable options
c6a2399 
Resolves rust-lang#41683.
bors added a commit that referenced this issue Jul 20, 2017
@bors
Auto merge of #43260 - zackmdavis:print_target_spec_json_unstable_opt…
381d51d 
…ions_error, r=arielb1

explanatory error on `--print target-spec-json` without unstable options

![unstable_target_spec](https://user-images.githubusercontent.com/1076988/28243342-9731a45c-697a-11e7-9852-bad7ca1802b7.png)

Resolves #41683.
@zackmdavis zackmdavis mentioned this issue Jul 23, 2017
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@jethrogb @Mark-Simulacrum