ci: Update musl with new release

[alexcrichton]

Apparently there's at least one CVE fixed in the new version of musl, and
because we're distributing it seems like a good opportunity to update!

Unfortunately it looks like #38618 still hasn't been fixed.

[rust-highfive]

r? @aturon

(rust_highfive has picked a reviewer for you, use r? to override)

[alexcrichton]

r? @Mark-Simulacrum

[Mark-Simulacrum]

@bors r+

For ease of access, release notes:

new features:
- RTLD_LAZY deferred symbol binding, functionally equivalent to lazy binding
- safeguard against dlopen of multiple libc versions/instances
- new posix_spawn flag POSIX_SPAWN_SETSID
- posix_spawnattr_setflags now reports unknown flags as error
- ldso option --argv0 to set argv[0]
- added _NL_LOCALE_NAME extension to nl_langinfo

compatibility:
- dlopen local-to-global promotion no longer changes existing symbols
- gettext now searches locale name variants for translation files
- increased locale name length limit from 15 to 23 bytes
- setlocale(LC_ALL, 0) returns single name if all categories are same
- realloc no longer fails when mremap doesn't work
- getservby* no longer treat numeric port strings as service records
- mmap now works around incorrect EPERM error codes from kernel
- impact of REG_* namespace pollution in x86[_64] signal.h is reduced
- arm atomic asm now assembles correctly with new binutils
- PAGE_SIZE on arm is no longer constant (quiet upstream ABI relaxation)
- lsearch/lfind now pass args to compare callback in canonical order
- STB_WEAK and STB_GNU_UNIQUE symbols now behave same as STB_GLOBAL
- better clang CFLAGS checks in configure
- global vis.h hack, which made lld refuse to link to libc.so, is disabled

performance:
- single-instruction optimized math functions for aarch64, s390x, powerpc64
- fast path for ASCII in towupper/towlower
- new mostly-integer-math fma function

semantic bugs fixed:
- POSIX-format TZ dst time transitions were wrong for southern hemisphere
- regex REG_NEWLINE semantics were wrong with negated brackets
- various bugs in strptime %j, %p, %C formats
- iconv mapped some characters to legacy 8bit encodings incorrectly
- glob failed to match "/"
- UTF-8 decoder accepted invalid f4 9x xx xx code sequences
- scanf %% conversion failed to consume whitespace
- glob with GLOB_PERIOD wrongly descended into . and ..
- nftw gave incorrect base name offset when pathname ends in "/"
- functional regression in resolv.conf attempts option
- scalbn could produce wrong result due to double rounding in subnormal range
- strftime %y format wrong with negative years
- mbsnrtowcs and wcsnrtombs mishandled input limits
- minor issues with error codes for various functions

safety/consistency bugs fixed:
- stack-based buffer overflow in dns response processing
- invalid free in regexec on certain error paths
- invalid free in globfree after failed glob
- one-byte buffer overflow in legacy getpass function
- failed dlopen corrupted thread-local storage module list
- race in pthread_create with priority attributes could leave signals masked
- multithreaded set*id() functions could induce spurious EINTRs
- dl_iterate_phdr reported wrong base address in static PIE
- fd leak and wrong cancellation state after dns socket failure
- memory leaks and other issues in environment-modification functions
- read-after-free race in pthread_detach
- memmem performed single-byte over-read in short-needle code paths
- read via uninitialized pointer in gettext core
- bindtextdomain broke bindings for all other domains
- various silent undefined behavior
- getopt clobbered optopt on success

arch-specific bugs fixed:
- x32 dynamic TLS accesses crashed
- s390x was missing dlsym entry point (needed for RTLD_NEXT)
- powerpc64 ldso startup could crash depending on link order
- powerpc64 setjmp/longjmp didn't properly save/restore TOC pointer
- thumb2 setjmp/longjmp silently broke at ld-time with text not aligned
- fchown was broken on archs without SYS_fchown syscall
- fstatat was broken on mips64
- various incorrect constants in powerpc64 and mips headers

[bors]

📌 Commit b1f246c has been approved by Mark-Simulacrum

[aidanhs]

Unfortunately it looks like #38618 still hasn't been fixed.

Aw :(

[bors]

⌛ Testing commit b1f246c with merge 540a95036a1080710ed56d22b9bcf5c2ab9a5422...

[bors]

💔 Test failed - status-travis

[kennytm]

@bors retry #45230

check i686-apple-darwin, LLDB segfault.

[01:32:18] failures:
[01:32:18] 
[01:32:18] ---- [debuginfo-lldb] debuginfo/destructured-fn-argument.rs stdout ----
[01:32:18] 	NOTE: compiletest thinks it is using LLDB version 370
[01:32:18] 
[01:32:18] error: Error while running LLDB
[01:32:18] status: signal: 11
[01:32:18] command: "/usr/bin/python" "/Users/travis/build/rust-lang/rust/src/etc/lldb_batchmode.py" "/Users/travis/build/rust-lang/rust/build/i686-apple-darwin/test/debuginfo/destructured-fn-argument.stage2-i686-apple-darwin" "/Users/travis/build/rust-lang/rust/build/i686-apple-darwin/test/debuginfo/destructured-fn-argument.debugger.script"
[01:32:18] stdout:
[01:32:18] ------------------------------------------
[01:32:18] LLDB batch-mode script
[01:32:18] ----------------------
[01:32:18] Debugger commands script is '/Users/travis/build/rust-lang/rust/build/i686-apple-darwin/test/debuginfo/destructured-fn-argument.debugger.script'.
[01:32:18] Target executable is '/Users/travis/build/rust-lang/rust/build/i686-apple-darwin/test/debuginfo/destructured-fn-argument.stage2-i686-apple-darwin'.
[01:32:18] Current working directory is '/Users/travis/build/rust-lang/rust'
[01:32:18] Creating a target for '/Users/travis/build/rust-lang/rust/build/i686-apple-darwin/test/debuginfo/destructured-fn-argument.stage2-i686-apple-darwin'
[01:32:18] settings set auto-confirm true
[01:32:18] 
[01:32:18] version
[01:32:18] lldb-370.0.42 Swift-3.1 
[01:32:18] command script import /Users/travis/build/rust-lang/rust/./src/etc/lldb_rust_formatters.py
[01:32:18] type summary add --no-value --python-function lldb_rust_formatters.print_val -x ".*" --category Rust
[01:32:18] type category enable Rust
[01:32:18] 
[01:32:18] breakpoint set --file 'destructured-fn-argument.rs' --line 341
[01:32:18] Breakpoint 1: where = destructured-fn-argument.stage2-i686-apple-darwin`destructured_fn_argument::simple_tuple + 23 at destructured-fn-argument.rs:341, address = 0x000016a7 
[01:32:18] breakpoint set --file 'destructured-fn-argument.rs' --line 345
[01:32:18] Breakpoint 2: where = destructured-fn-argument.stage2-i686-apple-darwin`destructured_fn_argument::nested_tuple + 30 at destructured-fn-argument.rs:345, address = 0x000016de 
[01:32:18] breakpoint set --file 'destructured-fn-argument.rs' --line 349
[01:32:18] Breakpoint 3: where = destructured-fn-argument.stage2-i686-apple-darwin`destructured_fn_argument::destructure_only_first_level + 26 at destructured-fn-argument.rs:349, address = 0x0000170a 
[01:32:18] breakpoint set --file 'destructured-fn-argument.rs' --line 353
[01:32:18] Breakpoint 4: where = destructured-fn-argument.stage2-i686-apple-darwin`destructured_fn_argument::struct_as_tuple_element + 40 at destructured-fn-argument.rs:353, address = 0x00001748 
[01:32:18] breakpoint set --file 'destructured-fn-argument.rs' --line 357
[01:32:18] Breakpoint 5: where = destructured-fn-argument.stage2-i686-apple-darwin`destructured_fn_argument::struct_pattern + 24 at destructured-fn-argument.rs:357, address = 0x00001778 
[01:32:18] breakpoint set --file 'destructured-fn-argument.rs' --line 361
[01:32:18] Breakpoint 6: where = destructured-fn-argument.stage2-i686-apple-darwin`destructured_fn_argument::ignored_tuple_element + 20 at destructured-fn-argument.rs:361, address = 0x000017a4 
[01:32:18] breakpoint set --file 'destructured-fn-argument.rs' --line 365
[01:32:18] Breakpoint 7: where = destructured-fn-argument.stage2-i686-apple-darwin`destructured_fn_argument::ignored_struct_field + 15 at destructured-fn-argument.rs:365, address = 0x000017bf 
[01:32:18] breakpoint set --file 'destructured-fn-argument.rs' --line 369
[01:32:18] Breakpoint 8: where = destructured-fn-argument.stage2-i686-apple-darwin`destructured_fn_argument::one_struct_destructured_one_not + 40 at destructured-fn-argument.rs:369, address = 0x000017f8 
[01:32:18] breakpoint set --file 'destructured-fn-argument.rs' --line 373
[01:32:18] Breakpoint 9: where = destructured-fn-argument.stage2-i686-apple-darwin`destructured_fn_argument::different_order_of_struct_fields + 24 at destructured-fn-argument.rs:373, address = 0x00001828 
[01:32:18] breakpoint set --file 'destructured-fn-argument.rs' --line 379
[01:32:18] Breakpoint 10: where = destructured-fn-argument.stage2-i686-apple-darwin`destructured_fn_argument::complex_nesting + 78 at destructured-fn-argument.rs:379, address = 0x0000188e 
[01:32:18] breakpoint set --file 'destructured-fn-argument.rs' --line 383
[01:32:18] Breakpoint 11: where = destructured-fn-argument.stage2-i686-apple-darwin`destructured_fn_argument::managed_box + 26 at destructured-fn-argument.rs:383, address = 0x000018ba 
[01:32:18] breakpoint set --file 'destructured-fn-argument.rs' --line 387
[01:32:18] Breakpoint 12: where = destructured-fn-argument.stage2-i686-apple-darwin`destructured_fn_argument::borrowed_pointer + 26 at destructured-fn-argument.rs:387, address = 0x000018ea 
[01:32:18] breakpoint set --file 'destructured-fn-argument.rs' --line 391
[01:32:18] Breakpoint 13: where = destructured-fn-argument.stage2-i686-apple-darwin`destructured_fn_argument::contained_borrowed_pointer + 16 at destructured-fn-argument.rs:391, address = 0x00001910 
[01:32:18] breakpoint set --file 'destructured-fn-argument.rs' --line 395
[01:32:18] Breakpoint 14: where = destructured-fn-argument.stage2-i686-apple-darwin`destructured_fn_argument::unique_pointer + 30 at destructured-fn-argument.rs:395, address = 0x0000193e 
[01:32:18] breakpoint set --file 'destructured-fn-argument.rs' --line 399
[01:32:18] Breakpoint 15: where = destructured-fn-argument.stage2-i686-apple-darwin`destructured_fn_argument::ref_binding + 12 at destructured-fn-argument.rs:399, address = 0x0000198c 
[01:32:18] breakpoint set --file 'destructured-fn-argument.rs' --line 403
[01:32:18] Breakpoint 16: where = destructured-fn-argument.stage2-i686-apple-darwin`destructured_fn_argument::ref_binding_in_tuple + 24 at destructured-fn-argument.rs:403, address = 0x000019b8 
[01:32:18] breakpoint set --file 'destructured-fn-argument.rs' --line 407
[01:32:18] Breakpoint 17: where = destructured-fn-argument.stage2-i686-apple-darwin`destructured_fn_argument::ref_binding_in_struct + 15 at destructured-fn-argument.rs:407, address = 0x000019df 
[01:32:18] breakpoint set --file 'destructured-fn-argument.rs' --line 411
[01:32:18] Breakpoint 18: where = destructured-fn-argument.stage2-i686-apple-darwin`destructured_fn_argument::univariant_enum + 24 at destructured-fn-argument.rs:411, address = 0x00001a08 
[01:32:18] breakpoint set --file 'destructured-fn-argument.rs' --line 415
[01:32:18] Breakpoint 19: where = destructured-fn-argument.stage2-i686-apple-darwin`destructured_fn_argument::univariant_enum_with_ref_binding + 24 at destructured-fn-argument.rs:415, address = 0x00001a38 
[01:32:18] breakpoint set --file 'destructured-fn-argument.rs' --line 419
[01:32:18] Breakpoint 20: where = destructured-fn-argument.stage2-i686-apple-darwin`destructured_fn_argument::tuple_struct + 24 at destructured-fn-argument.rs:419, address = 0x00001a68 
[01:32:18] breakpoint set --file 'destructured-fn-argument.rs' --line 423

[01:32:18] Breakpoint 21: where = destructured-fn-argument.stage2-i686-apple-darwin`destructured_fn_argument::tuple_struct_with_ref_binding + 24 at destructured-fn-argument.rs:423, address = 0x00001a98 
[01:32:18] breakpoint set --file 'destructured-fn-argument.rs' --line 427
[01:32:18] Breakpoint 22: where = destructured-fn-argument.stage2-i686-apple-darwin`destructured_fn_argument::multiple_arguments + 32 at destructured-fn-argument.rs:427, address = 0x00001ad0 
[01:32:18] breakpoint set --file 'destructured-fn-argument.rs' --line 455
[01:32:18] Breakpoint 23: where = destructured-fn-argument.stage2-i686-apple-darwin`destructured_fn_argument::main::nested_function + 32 at destructured-fn-argument.rs:455, address = 0x000021a0 
[01:32:18] quit
[01:32:18] 
[01:32:18] 
[01:32:18] ------------------------------------------
[01:32:18] stderr:
[01:32:18] ------------------------------------------
[01:32:18] 
[01:32:18] ------------------------------------------
[01:32:18] 
[01:32:18] thread '[debuginfo-lldb] debuginfo/destructured-fn-argument.rs' panicked at 'explicit panic', src/tools/compiletest/src/runtest.rs:2485:8
[01:32:18] note: Run with `RUST_BACKTRACE=1` for a backtrace.
[01:32:18] 
[01:32:18] 
[01:32:18] failures:
[01:32:18]     [debuginfo-lldb] debuginfo/destructured-fn-argument.rs
[01:32:18] 
[01:32:18] test result: �[31mFAILED�(B�[m. 97 passed; 1 failed; 10 ignored; 0 measured; 0 filtered out
[01:32:18] 
[01:32:18] thread 'main' panicked at 'Some tests failed', src/tools/compiletest/src/main.rs:329:21

[bors]

⌛ Testing commit b1f246c with merge 4279e2b...

[bors]

☀️ Test successful - status-appveyor, status-travis
Approved by: Mark-Simulacrum
Pushing 4279e2b to master...