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Rollup of 9 pull requests #104256

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@rustbot modify labels: rollup

Create a similar rollup

eholk and others added 27 commits October 10, 2022 16:00
Add lots of comments to this test and enable parts of the test that were
added but never ran.

Signed-off-by: David Wood <david.wood@huawei.com>
`CompiledModule` should not think a DWARF object was emitted when a
bitcode-only compilation has happened, this can confuse archive file
creation (which expects to create an archive containing non-existent dwo
files).

Signed-off-by: David Wood <david.wood@huawei.com>
This allows retrying binding TCP Socket multiple times. This is useful
when using emulators as network might not be available in the beginning.
This was orignally implemented in rust-lang#100316

Signed-off-by: Ayush Singh <ayushsingh1325@gmail.com>
Previously, a `delay_span_bug` was isssued, failing normalization. This
create a `TyKind::Error` in the signature, which caused
`compare_predicate_entailment` to swallow its signature mismatch error,
causing ICEs because no error was emitted.
This patch allows the usage of the `track_caller` annotation on
generators, as well as sets them conditionally if the parent also has
`track_caller` set.

Also add this annotation on the `GenFuture`'s `poll()` function.
…elwoerister

llvm: dwo only emitted when object code emitted

Fixes rust-lang#103932.

`CompiledModule` should not think a DWARF object was emitted when a bitcode-only compilation has happened, this can confuse archive file creation (which expects to create an archive containing non-existent dwo files).

r? `@michaelwoerister`
prevent uninitialized access in black_box for zero-sized-types

Don't read the pointer location in black_box for zero sized types, just emit a memory clobber instead. Addresses  rust-lang#103304 when rust is build against LLVM at HEAD.

Zulip thread: https://rust-lang.zulipchat.com/#narrow/stream/187780-t-compiler.2Fwg-llvm/topic/.28with.20llvm.20at.20HEAD.29.3A.20msan.20error.20in.20core.3A.3Ahint.3A.3Ablack_box
…ckh726

Mark `trait_upcasting` feature no longer incomplete.

This marks the `trait_upcasting` feature no longer incomplete since rust-lang#101336 has been settled for a little while.

r? `@jackh726`
…n514

Retry binding TCP Socket in remote-test-server

This allows retrying binding TCP Socket multiple times. This is useful when using emulators as network might not be available in the beginning.

This was orignally implemented in rust-lang#100316

Signed-off-by: Ayush Singh <ayushsingh1325@gmail.com>
Remove `save_and_restore_in_snapshot_flag`, use `ObligationCtxt` more

r? `@lcnr`
…iler-errors

Emit error in `collecting_trait_impl_trait_tys` on mismatched signatures

Previously, a `delay_span_bug` was isssued, failing normalization. This create a `TyKind::Error` in the signature, which caused `compare_predicate_entailment` to swallow its signature mismatch error, causing ICEs because no error was emitted.

fixes rust-lang#104183

r? `@compiler-errors`
… r=eholk

Support `#[track_caller]` on async fns

Adds `#[track_caller]` to the generator that is created when we desugar the async fn.

Fixes rust-lang#78840

Open questions:
- What is the performance impact of adding `#[track_caller]` to every `GenFuture`'s `poll(...)` function, even if it's unused (i.e., the parent span does not set `#[track_caller]`)? We might need to set it only conditionally, if the indirection causes overhead we don't want.
@rustbot rustbot added A-testsuite Area: The testsuite used to check the correctness of rustc S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. labels Nov 10, 2022
@rustbot rustbot added T-libs Relevant to the library team, which will review and decide on the PR/issue. T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue. rollup A PR which is a rollup labels Nov 10, 2022
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@bors r+ p=5 rollup

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bors commented Nov 10, 2022

📌 Commit c4561fc has been approved by Manishearth

It is now in the queue for this repository.

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Nov 10, 2022
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bors commented Nov 10, 2022

⌛ Testing commit c4561fc with merge eed1f34659ccf23f36a4e8a1f8d73c3534da06bd...

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bors commented Nov 10, 2022

💔 Test failed - checks-actions

@bors bors added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. and removed S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. labels Nov 10, 2022
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The job test-various failed! Check out the build log: (web) (plain)

Click to see the possible cause of the failure (guessed by this bot)
---- [ui] src/test/ui/async-await/track-caller/panic-track-caller.rs stdout ----

error: test run failed!
status: exit status: 101
command: "/node-v15.14.0-linux-x64/bin/node" "/checkout/src/etc/wasm32-shim.js" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/async-await/track-caller/panic-track-caller/a.wasm"
stdout: none
--- stderr -------------------------------
RuntimeError: unreachable
    at __rust_start_panic (<anonymous>:wasm-function[94]:0x5a97)
    at rust_panic (<anonymous>:wasm-function[91]:0x5a5d)
    at _ZN3std9panicking20rust_panic_with_hook17h0c233e78e6112adfE (<anonymous>:wasm-function[90]:0x5a2d)
    at _ZN3std9panicking19begin_panic_handler28_$u7b$$u7b$closure$u7d$$u7d$17hf994fd019a2fd642E (<anonymous>:wasm-function[77]:0x4a54)
    at _ZN3std10sys_common9backtrace26__rust_end_short_backtrace17ha238eeecdfc892b1E (<anonymous>:wasm-function[76]:0x49b9)
    at rust_begin_unwind (<anonymous>:wasm-function[85]:0x5681)
    at _ZN4core9panicking9panic_fmt17ha1487ae10087c69cE (<anonymous>:wasm-function[140]:0x63bf)
    at _ZN4core9panicking5panic17heb919bbe7cf670eaE (<anonymous>:wasm-function[143]:0x680c)
    at _ZN3std5panic12catch_unwind17h79eba0ed8ab51e6aE (<anonymous>:wasm-function[2]:0x230)
    at _ZN18panic_track_caller4main17h0fa14fb0b64e685eE (<anonymous>:wasm-function[14]:0x66a)
    at _ZN3std10sys_common9backtrace28__rust_begin_short_backtrace17h363919328fe77852E (<anonymous>:wasm-function[0]:0x1cf)
    at _ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h226d7bc4ae73ce06E (<anonymous>:wasm-function[1]:0x1f1)
    at _ZN3std2rt19lang_start_internal17h8bbe173c9dd6e6e6E (<anonymous>:wasm-function[64]:0x3f60)
    at main (<anonymous>:wasm-function[15]:0x6b2)
    at Object.<anonymous> (/checkout/src/etc/wasm32-shim.js:20:20)
    at Module._compile (node:internal/modules/cjs/loader:1092:14)
    at Object.Module._extensions..js (node:internal/modules/cjs/loader:1121:10)
    at Module.load (node:internal/modules/cjs/loader:972:32)
    at Function.Module._load (node:internal/modules/cjs/loader:813:14)
    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:76:12)



failures:

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