rustc is still failing with "index out of bounds" when incremental is on #49586

imp · 2018-04-02T13:37:22Z

It looks quite similar to #48847, which was fixed some time ago.
Nonetheless, I am still hitting this on daily basis (and I am on fresh nightly on daily basis too).
Re-running with CARGO_INCREMENTAL=0 fixes the problem. It kinda feels like it has something to do with the fact that one of the dependencies I have uses #[proc_macro_attribute]. However, I don't have strong evidence to support this.

So, unless the fix in #49364 didn't make it into nightly the problem is still here or perhaps is triggered by something else.

$ RUST_BACKTRACE=full cargo test
   Compiling rexlog v0.3.0 (file:///../rexlog)
thread 'rustc' panicked at 'index out of bounds: the len is 346134 but the index is 347494', /Users/travis/build/rust-lang/rust/src/libcore/slice/mod.rs:871:14
stack backtrace:
thread 'rustc' panicked at 'index out of bounds: the len is 323469 but the index is 324710', /Users/travis/build/rust-lang/rust/src/libcore/slice/mod.rs:871:14
stack backtrace:
      00: :               0x0x10f0be4ab10c6704ab -  - stdstd::::syssys::::unixunix::::backtracebacktrace::::tracingtracing::::impimp::::unwind_backtraceunwind_backtrace::::h366610c5a5c43907h366610c5a5c43907

   1:          1 : 0x 10f09439b  -   std :: sys_common ::0xbacktrace10c64639b:: - print::stdh7a317efe25c5e753::
sys_common::backtrace::print::h7a317efe25c5e753
      22: :               0x0x10c660e2d10f0aee2d -  - stdstd::::panickingpanicking::::default_hookdefault_hook::::{{{{closureclosure}}}}::::h0ceb10b0333c30c9h0ceb10b0333c30c9

     3:     3 :       0x 10c660b8a  -   0x10f0aeb8a - std::panicking::default_hook::h52f1cafdb80838c7
std::panicking::default_hook::h52f1cafdb80838c7
      44: :               0x0x10b2043e010d7bc3e0 -  - corecore::::opsops::::functionfunction::::FnFn::::callcall::::h9b97d3244299c7efh9b97d3244299c7ef

   5  :   5 :           0x 10f0af2e0  - 0x10c6612e0std - ::panickingstd::::rust_panic_with_hookpanicking::rust_panic_with_hook::hb44d67051d9d88b2
::hb44d67051d9d88b2
   6:       6 :       0x 10c6610da  -   std0x::10f0af0dapanicking - ::begin_panic_fmtstd::::h1bc250036d2f0fcdpanicking
::begin_panic_fmt::h1bc250036d2f0fcd
   7:       7 :       0x 10c660fd2  -  rust_begin_unwind
0x10f0aefd2 - rust_begin_unwind
      88: :               0x0x10f11dd4510c6cfd45 -  - corecore::::panickingpanicking::::panic_fmtpanic_fmt::::h2e51865b8b30844fh2e51865b8b30844f

      99: :               0x0x10f11dcc310c6cfcc3 -  - corecore::::panickingpanicking::::panic_bounds_checkpanic_bounds_check::::h27f516c666ce87c3h27f516c666ce87c3

    1010: :               0x0x10ae06a5a10d3bea5a -  - rustcrustc::::dep_graphdep_graph::::graphgraph::::DepGraphDepGraph::::with_task_implwith_task_impl::::h44ec831076965f2dh44ec831076965f2d

  11  : 11 :             0x 10d42a4cf0x - 10ae724cf - rustc_errors::rustc_errorsHandler::::Handlertrack_diagnostics::::track_diagnosticsh1b6f9e82a9a76210::
h1b6f9e82a9a76210
    1212: :               0x0x10b0a9c5010d661c50 -  - rustcrustc::::tyty::::mapsmaps::::plumbingplumbing::::<<implimpl  rustcrustc::::tyty::::contextcontext::::TyCtxtTyCtxt<<''aa,,  ''gcxgcx,,  ''tcxtcx>>>>::::cycle_checkcycle_check::::hbd8198d763eb22d5hbd8198d763eb22d5

    1313: :               0x0x10d74602510b18e025 -  - rustcrustc::::tyty::::mapsmaps::::<<implimpl  rustcrustc::::tyty::::mapsmaps::::queriesqueries::::crate_disambiguatorcrate_disambiguator<<''tcxtcx>>>>::::forceforce::::h03279f064836e36ch03279f064836e36c

  14:        0x10b18ea37 - rustc::ty::maps::<impl rustc::ty::maps::queries::crate_disambiguator<  'tcx14>: > :: try_get :: h200355d461c7bd90
  0x10d746a37 - rustc::ty::maps::<impl rustc::ty::maps::queries::crate_disambiguator<'tcx>>::try_get::h200355d461c7bd90
    1515: :               0x0x10d6a267b10b0ea67b -  - rustcrustc::::tyty::::mapsmaps::::TyCtxtAtTyCtxtAt::::crate_disambiguatorcrate_disambiguator::::h96062a13ebb040ach96062a13ebb040ac

    1616: :               0x0x10afcd5f710d5855f7 -  - corecore::::opsops::::functionfunction::::implsimpls::::<<implimpl  corecore::::opsops::::functionfunction::::FnOnceFnOnce<<AA>>  forfor  &&''aa  mutmut  FF>>::::call_oncecall_once::::h70d98388dbf3d01ch70d98388dbf3d01c

    1717: :               0x0x10d2d75a010ad1f5a0 -  - <<stdstd::::collectionscollections::::hashhash::::mapmap::::HashMapHashMap<<KK,,  VV,,  SS>>  asas  corecore::::iteriter::::traitstraits::::FromIteratorFromIterator<<((KK,,  VV))>>>>::::from_iterfrom_iter::::h466507e1c9931fcah466507e1c9931fca

  18:          180x: 10adef672  -   rustc :: dep_graph :: graph0x::10d3a7672DepGraph - ::with_ignorerustc::::h227baac199d5fd46dep_graph
::graph::DepGraph::with_ignore::h227baac199d5fd46
    1919: :               0x0x10affdf8d10d5b5f8d -  - rustcrustc::::tyty::::mapsmaps::::on_disk_cacheon_disk_cache::::OnDiskCacheOnDiskCache::::load_diagnosticsload_diagnostics::::he2d592279e7a62b0he2d592279e7a62b0

  20  : 20 :             0x 10d3ff5580x - 10ae47558 - rustcrustc::::dep_graphdep_graph::::graphgraph::::DepGraphDepGraph::::try_mark_greentry_mark_green::::heaf9c57c89e0da8dheaf9c57c89e0da8d

    2121: :               0x0x10b0c0c4c10d678c4c -  - rustcrustc::::tyty::::mapsmaps::::plumbingplumbing::::<<implimpl  rustcrustc::::tyty::::contextcontext::::TyCtxtTyCtxt<<''aa,,  ''gcxgcx,,  ''tcxtcx>>>>::::try_mark_green_and_readtry_mark_green_and_read::::hea34e4d80140e3fahea34e4d80140e3fa

    2222: :               0x0x10b155c8c10d70dc8c -  - rustcrustc::::tyty::::mapsmaps::::<<implimpl  rustcrustc::::tyty::::mapsmaps::::queriesqueries::::trans_fn_attrstrans_fn_attrs<<''tcxtcx>>>>::::try_gettry_get::::h5a03b2357edcf5eeh5a03b2357edcf5ee

    2323: :               0x0x10b0e7e2110d69fe21 -  - rustcrustc::::tyty::::mapsmaps::::TyCtxtAtTyCtxtAt::::trans_fn_attrstrans_fn_attrs::::h583266aa8af834c8h583266aa8af834c8

    2424: :               0x0x10d40200810ae4a008 -  - <<rustcrustc::::hirhir::::check_attrcheck_attr::::CheckAttrVisitorCheckAttrVisitor<<''aa,,  ''tcxtcx>>  asas  rustcrustc::::hirhir::::intravisitintravisit::::VisitorVisitor<<''tcxtcx>>>>::::visit_itemvisit_item::::he74dfb870b548c09he74dfb870b548c09

    2525: :               0x0x10d9aab6a10b3f2b6a -  - rustcrustc::::hirhir::::CrateCrate::::visit_all_item_likesvisit_all_item_likes::::h3b674bd40b178a04h3b674bd40b178a04

  26:      26 :       0x 10d4033d7  -   rustc0x::10ae4b3d7hir - ::rustccheck_attr::::hircheck_crate::::check_attrh51e4802d29e36c00::
check_crate::h51e4802d29e36c00
    2727: :               0x0x108fd7c0810bb0ec08 -  - <<stdstd::::threadthread::::locallocal::::LocalKeyLocalKey<<TT>>>>::::withwith::::hdc24675849a08d33hdc24675849a08d33

  28  : 28 :             0x 108fd63fc0x - 10bb0d3fc< - std<::stdthread::::threadlocal::::localLocalKey::<LocalKeyT<>T>>::>with::::withh202d3d26a302feda::
h202d3d26a302feda
    2929: :               0x0x10bb7b5e91090445e9 -  - rustcrustc::::tyty::::contextcontext::::TyCtxtTyCtxt::::create_and_entercreate_and_enter::::hb3bf8df16c466565hb3bf8df16c466565

    3030: :               0x0x10ba9f2c9108f682c9 -  - rustc_driverrustc_driver::::driverdriver::::compile_inputcompile_input::::h6fef5ec4253b03bdh6fef5ec4253b03bd

    3131: :               0x0x108ffcf8510bb33f85 -  - rustc_driverrustc_driver::::run_compiler_implrun_compiler_impl::::h93424a4b8ff05c37h93424a4b8ff05c37

    32: 32 :           0x 10ba7a60b  -  syntax0x::with_globals108f4360b:: - h692960019527b54c
syntax::with_globals::h692960019527b54c
    33: 33 :           0x 10bab967f  -  std0x::108f8267fsys_common:: - backtrace::std__rust_begin_short_backtrace::::sys_commonhae82898bcf3d911a::
backtrace::__rust_begin_short_backtrace::hae82898bcf3d911a
  34:        0x10f0d3b1e -   __rust_maybe_catch_panic34
:        0x10c685b1e - __rust_maybe_catch_panic
  35:        35 :   0x 10bac57ff  -     <0xF108f8e7ff  - as <allocF:: boxedas:: FnBoxalloc<::Aboxed>::>FnBox::<call_boxA::>hb601af265dd036e7>
::call_box::hb601af265dd036e7
    3636: :               0x0x10f0c6d9710c678d97 -  - stdstd::::sys_commonsys_common::::threadthread::::start_threadstart_thread::::h9a50dc631317cc98h9a50dc631317cc98

    3737: :               0x0x10c64512810f093128 -  - stdstd::::syssys::::unixunix::::threadthread::::ThreadThread::::newnew::::thread_startthread_start::::ha148513b715b08e3ha148513b715b08e3

    3838: :         0x0x7fff5d6246c07fff5d6246c0 -  - _pthread_body_pthread_body

    3939: :         0x0x7fff5d62456c7fff5d62456c -  - _pthread_start_pthread_start


error: internal compiler error: unexpected panic

note: the compiler unexpectedly panicked. this is a bug.

note: we would appreciate a bug report: https://github.com/rust-lang/rust/blob/master/CONTRIBUTING.md#bug-reports

note: rustc 1.26.0-nightly (06fa27d7c 2018-04-01) running on x86_64-apple-darwin

note: compiler flags: -C debuginfo=2 -C incremental --crate-type lib

note: some of the compiler flags provided by cargo are hidden


error: internal compiler error: unexpected panic

note: the compiler unexpectedly panicked. this is a bug.

note: we would appreciate a bug report: https://github.com/rust-lang/rust/blob/master/CONTRIBUTING.md#bug-reports

note: rustc 1.26.0-nightly (06fa27d7c 2018-04-01) running on x86_64-apple-darwin

note: compiler flags: -C debuginfo=2 -C incremental

note: some of the compiler flags provided by cargo are hidden

error: Could not compile `rexlog`.
warning: build failed, waiting for other jobs to finish...
error: Could not compile `rexlog`.

To learn more, run the command again with --verbose.

The text was updated successfully, but these errors were encountered:

wesleywiser · 2018-04-02T15:09:51Z

cc @rust-lang/wg-compiler-performance as this is related to incremental compilation

wesleywiser · 2018-04-02T15:17:28Z

The stack trace appears garbled for some reason. Here's the relevant parts:

99: :               0x0x10f11dcc310c6cfcc3 -  - corecore::::panickingpanicking::::panic_bounds_checkpanic_bounds_check::::h27f516c666ce87c3h27f516c666ce87c3

1010: :               0x0x10ae06a5a10d3bea5a -  - rustcrustc::::dep_graphdep_graph::::graphgraph::::DepGraphDepGraph::::with_task_implwith_task_impl::::h44ec831076965f2dh44ec831076965f2d

11  : 11 :             0x 10d42a4cf0x - 10ae724cf - rustc_errors::rustc_errorsHandler::::Handlertrack_diagnostics::::track_diagnosticsh1b6f9e82a9a76210::
h1b6f9e82a9a76210
1212: :               0x0x10b0a9c5010d661c50 -  - rustcrustc::::tyty::::mapsmaps::::plumbingplumbing::::<<implimpl  rustcrustc::::tyty::::contextcontext::::TyCtxtTyCtxt<<''aa,,  ''gcxgcx,,  ''tcxtcx>>>>::::cycle_checkcycle_check::::hbd8198d763eb22d5hbd8198d763eb22d5

1313: :               0x0x10d74602510b18e025 -  - rustcrustc::::tyty::::mapsmaps::::<<implimpl  rustcrustc::::tyty::::mapsmaps::::queriesqueries::::crate_disambiguatorcrate_disambiguator<<''tcxtcx>>>>::::forceforce::::h03279f064836e36ch03279f064836e36c

14:        0x10b18ea37 - rustc::ty::maps::<impl rustc::ty::maps::queries::crate_disambiguator<  'tcx14>: > :: try_get :: h200355d461c7bd90
  0x10d746a37 - rustc::ty::maps::<impl rustc::ty::maps::queries::crate_disambiguator<'tcx>>::try_get::h200355d461c7bd90
1515: :               0x0x10d6a267b10b0ea67b -  - rustcrustc::::tyty::::mapsmaps::::TyCtxtAtTyCtxtAt::::crate_disambiguatorcrate_disambiguator::::h96062a13ebb040ach96062a13ebb040ac

1616: :               0x0x10afcd5f710d5855f7 -  - corecore::::opsops::::functionfunction::::implsimpls::::<<implimpl  corecore::::opsops::::functionfunction::::FnOnceFnOnce<<AA>>  forfor  &&''aa  mutmut  FF>>::::call_oncecall_once::::h70d98388dbf3d01ch70d98388dbf3d01c

1717: :               0x0x10d2d75a010ad1f5a0 -  - <<stdstd::::collectionscollections::::hashhash::::mapmap::::HashMapHashMap<<KK,,  VV,,  SS>>  asas  corecore::::iteriter::::traitstraits::::FromIteratorFromIterator<<((KK,,  VV))>>>>::::from_iterfrom_iter::::h466507e1c9931fcah466507e1c9931fca

18:          180x: 10adef672  -   rustc :: dep_graph :: graph0x::10d3a7672DepGraph - ::with_ignorerustc::::h227baac199d5fd46dep_graph
::graph::DepGraph::with_ignore::h227baac199d5fd46
1919: :               0x0x10affdf8d10d5b5f8d -  - rustcrustc::::tyty::::mapsmaps::::on_disk_cacheon_disk_cache::::OnDiskCacheOnDiskCache::::load_diagnosticsload_diagnostics::::he2d592279e7a62b0he2d592279e7a62b0

20  : 20 :             0x 10d3ff5580x - 10ae47558 - rustcrustc::::dep_graphdep_graph::::graphgraph::::DepGraphDepGraph::::try_mark_greentry_mark_green::::heaf9c57c89e0da8dheaf9c57c89e0da8d

2121: :               0x0x10b0c0c4c10d678c4c -  - rustcrustc::::tyty::::mapsmaps::::plumbingplumbing::::<<implimpl  rustcrustc::::tyty::::contextcontext::::TyCtxtTyCtxt<<''aa,,  ''gcxgcx,,  ''tcxtcx>>>>::::try_mark_green_and_readtry_mark_green_and_read::::hea34e4d80140e3fahea34e4d80140e3fa

2222: :               0x0x10b155c8c10d70dc8c -  - rustcrustc::::tyty::::mapsmaps::::<<implimpl  rustcrustc::::tyty::::mapsmaps::::queriesqueries::::trans_fn_attrstrans_fn_attrs<<''tcxtcx>>>>::::try_gettry_get::::h5a03b2357edcf5eeh5a03b2357edcf5ee

2323: :               0x0x10b0e7e2110d69fe21 -  - rustcrustc::::tyty::::mapsmaps::::TyCtxtAtTyCtxtAt::::trans_fn_attrstrans_fn_attrs::::h583266aa8af834c8h583266aa8af834c8

2424: :               0x0x10d40200810ae4a008 -  - <<rustcrustc::::hirhir::::check_attrcheck_attr::::CheckAttrVisitorCheckAttrVisitor<<''aa,,  ''tcxtcx>>  asas  rustcrustc::::hirhir::::intravisitintravisit::::VisitorVisitor<<''tcxtcx>>>>::::visit_itemvisit_item::::he74dfb870b548c09he74dfb870b548c09

2525: :               0x0x10d9aab6a10b3f2b6a -  - rustcrustc::::hirhir::::CrateCrate::::visit_all_item_likesvisit_all_item_likes::::h3b674bd40b178a04h3b674bd40b178a04

26:      26 :       0x 10d4033d7  -   rustc0x::10ae4b3d7hir - ::rustccheck_attr::::hircheck_crate::::check_attrh51e4802d29e36c00::
check_crate::h51e4802d29e36c00
2727: :               0x0x108fd7c0810bb0ec08 -  - <<stdstd::::threadthread::::locallocal::::LocalKeyLocalKey<<TT>>>>::::withwith::::hdc24675849a08d33hdc24675849a08d33

28  : 28 :             0x 108fd63fc0x - 10bb0d3fc< - std<::stdthread::::threadlocal::::localLocalKey::<LocalKeyT<>T>>::>with::::withh202d3d26a302feda::
h202d3d26a302feda
2929: :               0x0x10bb7b5e91090445e9 -  - rustcrustc::::tyty::::contextcontext::::TyCtxtTyCtxt::::create_and_entercreate_and_enter::::hb3bf8df16c466565hb3bf8df16c466565

3030: :               0x0x10ba9f2c9108f682c9 -  - rustc_driverrustc_driver::::driverdriver::::compile_inputcompile_input::::h6fef5ec4253b03bdh6fef5ec4253b03bd

wesleywiser · 2018-04-02T15:18:59Z

The crash isn't happening during incremental result deserialization so the fix in #49364 doesn't have any effect.

ExpHP · 2018-04-02T15:47:02Z

Might instead be #48923 (report) / #49300 (meta-issue for underlying bug)

michaelwoerister · 2018-04-12T11:52:09Z

This this still reproduce with a current nightly?

SimonSapin · 2018-04-12T12:52:56Z

I’ve seen this happen a couple times this week while working on std after rebasing a branch on top of master. ./x.py clean fixes it, but takes some time.

michaelwoerister · 2018-04-12T13:19:38Z

@SimonSapin, was that with a version that already contains #49695?

SimonSapin · 2018-04-12T13:32:38Z

merged […] a day ago

Probably not. Or at least the pre-rebase branches probably did not. Or possibly it only happened specifically when going from without to with this change?

michaelwoerister · 2018-05-03T12:04:19Z

Is this still an issue on nightly?

imp · 2018-05-03T18:57:48Z

Not anymore on the code base that was the source of this ticket.

imp closed this as completed May 3, 2018

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rustc is still failing with "index out of bounds" when incremental is on #49586

rustc is still failing with "index out of bounds" when incremental is on #49586

imp commented Apr 2, 2018

wesleywiser commented Apr 2, 2018

wesleywiser commented Apr 2, 2018

wesleywiser commented Apr 2, 2018

ExpHP commented Apr 2, 2018 •

edited

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michaelwoerister commented Apr 12, 2018

SimonSapin commented Apr 12, 2018

michaelwoerister commented Apr 12, 2018

SimonSapin commented Apr 12, 2018

michaelwoerister commented May 3, 2018

imp commented May 3, 2018

rustc is still failing with "index out of bounds" when incremental is on #49586

rustc is still failing with "index out of bounds" when incremental is on #49586

Comments

imp commented Apr 2, 2018

wesleywiser commented Apr 2, 2018

wesleywiser commented Apr 2, 2018

wesleywiser commented Apr 2, 2018

ExpHP commented Apr 2, 2018 • edited Loading

michaelwoerister commented Apr 12, 2018

SimonSapin commented Apr 12, 2018

michaelwoerister commented Apr 12, 2018

SimonSapin commented Apr 12, 2018

michaelwoerister commented May 3, 2018

imp commented May 3, 2018

ExpHP commented Apr 2, 2018 •

edited

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