Update musl to 1.1.20.

[adrian-budau]

This fixes #54429

[rust-highfive]

Thanks for the pull request, and welcome! The Rust team is excited to review your changes, and you should hear from @alexcrichton (or someone else) soon.

If any changes to this PR are deemed necessary, please add them as extra commits. This ensures that the reviewer can see what has changed since they last reviewed the code. Due to the way GitHub handles out-of-date commits, this should also make it reasonably obvious what issues have or haven't been addressed. Large or tricky changes may require several passes of review and changes.

Please see the contribution instructions for more information.

[alexcrichton]

@bors: r+

[bors]

📌 Commit 97723db has been approved by alexcrichton

[bors]

⌛ Testing commit 97723db with merge 5c71d117f1771205d6de04cd65fb72d59856808b...

[bors]

💔 Test failed - status-appveyor

[alexcrichton]

@bors: retry

[bors]

⌛ Testing commit 97723db with merge fb2d2b911511746d283501c5709955694e33be73...

[bors]

💔 Test failed - status-travis

[rust-highfive]

The job dist-x86_64-linux of your PR failed on Travis (raw log). Through arcane magic we have determined that the following fragments from the build log may contain information about the problem.

Click to expand the log.

[00:01:23] 
[00:01:23] Total download size: 4.9 M
[00:01:23] Downloading Packages:
[00:01:23] --------------------------------------------------------------------------------
[00:01:23] Total                                            11 MB/s | 4.9 MB     00:00     
[00:01:23] warning: rpmts_HdrFromFdno: Header V3 DSA signature: NOKEY, key ID e8562897
[00:01:23] Importing GPG key 0xE8562897 "CentOS-5 Key (CentOS 5 Official Signing Key) <centos-5-key@centos.org>" from /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5
[00:01:23] Running Transaction Test
[00:01:23] Finished Transaction Test
[00:01:23] Transaction Test Succeeded
[00:01:23] Running Transaction
---
[00:02:57] + hide_output make install
[00:02:57] + set +x
[00:03:15] shared.sh: line 11:   351 Terminated              bash -c "while true; do sleep 30; echo \$(date) - building ...; done"
[00:03:15] + cd ..
[00:03:15] + rm -rf openssl-1.0.2k
[00:03:15] ./build-openssl.sh: line 25:  4114 Terminated              bash -c "while true; do sleep 30; echo \$(date) - building ...; done"  (wd: /tmp/openssl-1.0.2k)
[00:03:15] + ln -nsf /etc/pki/tls/cert.pem /rustroot/ssl/
[00:03:15] Removing intermediate container a47e17a12f9d
[00:03:15] Step 14/38 : COPY dist-x86_64-linux/build-curl.sh /tmp/
[00:03:16]  ---> 2985648128e3
[00:03:16] Step 15/38 : RUN ./build-curl.sh
[00:03:16] Step 15/38 : RUN ./build-curl.sh
[00:03:16]  ---> Running in a1416ae1077a
[00:03:16] + source shared.sh
[00:03:16] + VERSION=7.51.0
[00:03:16] + curl http://cool.haxx.se/download/curl-7.51.0.tar.bz2
[00:03:17]   % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
[00:03:17]                                  Dload  Upload   Total   Spent    Left  Speed
[00:03:19] 
  0 2509k    0 14215    0     0   9155      0  0:04:40  0:00:01  0:04:39  9155
  0 2509k    0 14215    0     0   9155      0  0:04:40  0:00:01  0:04:39  9155
  1 2509k    1 30599    0     0  18170      0  0:02:21  0:00:01  0:02:20  121k
 75 2509k   75 1906k    0     0   739k      0  0:00:03  0:00:02  0:00:01 1846k
100 2509k  100 2509k    0     0   922k      0  0:00:02  0:00:02 --:--:-- 2135k
[00:03:19] + mkdir curl-build
[00:03:19] + cd curl-build
[00:03:19] + hide_output ../curl-7.51.0/configure --prefix=/rustroot --with-ssl=/rustroot --disable-sspi --disable-gopher --disable-smtp --disable-smb --disable-imap --disable-pop3 --disable-tftp --disable-telnet --disable-manual --disable-dict --disable-rtsp --disable-ldaps --disable-ldap
[00:03:40] + hide_output make -j10
[00:03:40] + set +x
[00:03:52] shared.sh: line 11:    12 Terminated              bash -c "while true; do sleep 30; echo \$(date) - building ...; done"
[00:03:52] + hide_output make install
---
 91 82.1M   91 75.1M    0     0  3053k      0  0:00:27  0:00:25  0:00:02 3609k
 96 82.1M   96 78.9M    0     0  3083k      0  0:00:27  0:00:26  0:00:01 3532k
100 82.1M  100 82.1M    0     0  3112k      0  0:00:27  0:00:27 --:--:-- 3694k
[00:07:37] + cd gcc-4.8.5
[00:07:37] + sed -i 's|ftp://gcc\.gnu\.org/|http://gcc.gnu.org/|g' ./contrib/download_prerequisites
[00:07:37] --2018-09-24 07:15:56--  http://gcc.gnu.org/pub/gcc/infrastructure/mpfr-2.4.2.tar.bz2
[00:07:37] Resolving gcc.gnu.org... 209.132.180.131
[00:07:37] Connecting to gcc.gnu.org|209.132.180.131|:80... connected.
[00:07:37] HTTP request sent, awaiting response... 200 OK
---
  3 24.1M    3  943k    0     0  1948k      0  0:00:12 --:--:--  0:00:12 3867k
 43 24.1M   43 10.5M    0     0  7274k      0  0:00:03  0:00:01  0:00:02 8681k
 77 24.1M   77 18.6M    0     0  7685k      0  0:00:03  0:00:02  0:00:01 8505k
100 24.1M  100 24.1M    0     0  7888k      0  0:00:03  0:00:03 --:--:-- 8544k
[00:41:23] + cd llvm-6.0.0.src
[00:41:23] + mkdir -p tools/clang
[00:41:23] + curl https://releases.llvm.org/6.0.0/cfe-6.0.0.src.tar.xz
[00:41:23] + tar xf - -C tools/clang --strip-components=1
[00:41:23] + xz -d
[00:41:23]                                  Dload  Upload   Total   Spent    Left  Speed
[00:41:25] 
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
 15 11.4M   15 1796k    0     0  5249k      0  0:00:02 --:--:--  0:00:02 5268k
 15 11.4M   15 1796k    0     0  5249k      0  0:00:02 --:--:--  0:00:02 5268k
 74 11.4M   74 8724k    0     0  6498k      0  0:00:01  0:00:01 --:--:-- 6501k
100 11.4M  100 11.4M    0     0  6914k      0  0:00:01  0:00:01 --:--:-- 6918k
[00:41:25] + mkdir -p tools/lld
[00:41:25] + curl https://releases.llvm.org/6.0.0/lld-6.0.0.src.tar.xz
[00:41:25] + xz -d
[00:41:25] + tar xf - -C tools/lld --strip-components=1
[00:41:25]                                  Dload  Upload   Total   Spent    Left  Speed
[00:41:25] 
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
100  772k  100  772k    0     0  3337k      0 --:--:-- --:--:-- --:--:-- 3371k
100  772k  100  772k    0     0  3337k      0 --:--:-- --:--:-- --:--:-- 3371k
[00:41:25] + mkdir ../clang-build
[00:41:25] + cd ../clang-build
[00:41:25] + INC=/rustroot/include
[00:41:25] + INC=/rustroot/include:/rustroot/lib/gcc/x86_64-unknown-linux-gnu/4.8.5/include-fixed
[00:41:25] + INC=/rustroot/include:/rustroot/lib/gcc/x86_64-unknown-linux-gnu/4.8.5/include-fixed:/usr/include
[00:41:25] + hide_output cmake ../llvm-6.0.0.src -DCMAKE_C_COMPILER=/rustroot/bin/gcc -DCMAKE_CXX_COMPILER=/rustroot/bin/g++ -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/rustroot -DLLVM_TARGETS_TO_BUILD=X86 -DC_INCLUDE_DIRS=/rustroot/include:/rustroot/lib/gcc/x86_64-unknown-linux-gnu/4.8.5/include-fixed:/usr/include
[00:41:54] + hide_output make -j10
[00:41:54] + set +x
[00:42:24] Mon Sep 24 07:50:43 UTC 2018 - building ...
[00:42:54] Mon Sep 24 07:51:13 UTC 2018 - building ...
---
[01:34:35] + set +x
[01:34:36] + hide_output make INSTALL_HDR_PATH=dest headers_install
[01:34:36] + set +x
[01:34:39] shared.sh: line 11:    10 Terminated              bash -c "while true; do sleep 30; echo \$(date) - building ...; done"
[01:34:39] + find dest/include '(' -name .install -o -name ..install.cmd ')' -delete
[01:34:39] + yes
[01:34:39] + yes
[01:34:39] + cp -fr dest/include/asm dest/include/asm-generic dest/include/drm dest/include/linux dest/include/mtd dest/include/rdma dest/include/scsi dest/include/sound dest/include/video dest/include/xen /usr/include
[01:34:39] + rm -rf linux-3.2.84
[01:34:40]  ---> ee2161c255e7
[01:34:40] Removing intermediate container d3280820c46c
[01:34:40] Step 31/38 : COPY scripts/sccache.sh /scripts/
---
[02:59:14] [RUSTC-TIMING] rustc_traits test:false 1.210
[02:59:14]  Documenting rustc_incremental v0.0.0 (file:///checkout/src/librustc_incremental)
[02:59:19]  Documenting rustc_allocator v0.0.0 (file:///checkout/src/librustc_allocator)

Broadcast message from root@travis-job-5b394834-3e18-42c0-a982-ff33423108f7
 (unknown) at 10:07 ...
The system is going down for power off NOW!
[02:59:23] Session terminated, killing shell... Documenting rustc_traits v0.0.0 (file:///checkout/src/librustc_traits)

I'm a bot! I can only do what humans tell me to, so if this was not helpful or you have suggestions for improvements, please ping or otherwise contact @TimNN. (Feature Requests)

[alexcrichton]

@bors: retry

[bors]

⌛ Testing commit 97723db with merge ae36663...

[bors]

☀️ Test successful - status-appveyor, status-travis
Approved by: alexcrichton
Pushing ae36663 to master...