Add basic backtrace functionality #12052
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Whenever a failure happens, if a program is run with `RUST_LOG=std::rt::backtrace` a backtrace will be printed to the task's stderr handle. Currently this is not an exported interface because it's only supported on osx/linux. I found that windows/freebsd/android all required extra libraries which are not necessarily present by default. cc rust-lang#10128
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This may end up not being that useful for a variety of reasons:
That being said, when you need a backtrace you often really need a backtrace, so perhaps this is useful functionality to include regardless? It's all off by default and completely unreachable outside of |
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I'm OK with this but I do hope somebody still adds nice cross-platform back traces based on libunwind. |
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Aha, I have discovered |
bors
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minor: drop `install-ra` cargo alias
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…onditional_recursion, r=xFrednet Fix false positive `unconditional_recursion` Fixes rust-lang#12052. Only checking if both variables are `local` was not enough, we also need to confirm they have the same type as `Self`. changelog: Fix false positive for `unconditional_recursion` lint
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Whenever a failure happens, if a program is run with
RUST_LOG=std::rt::backtracea backtrace will be printed to the task's stderrhandle.
Currently this is not an exported interface because it's only supported on
osx/linux. I found that windows/freebsd/android all required extra libraries
which are not necessarily present by default.
cc #10128