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