Update Ubuntu images to 19.10

ci/azure.yml

@@ -12,7 +12,7 @@ pr: ["master"]
 jobs:
   - job: DockerLinuxTier1
     pool:
-      vmImage: ubuntu-16.04
+      vmImage: ubuntu-18.04
     steps:
       - template: azure-install-rust.yml
       - bash: LIBC_CI=1 sh ./ci/run-docker.sh $TARGET
@@ -27,7 +27,7 @@ jobs:
   - job: DockerLinuxTier2
     #dependsOn: DockerLinuxTier1
     pool:
-      vmImage: ubuntu-16.04
+      vmImage: ubuntu-18.04
     steps:
       - template: azure-install-rust.yml
       - bash: LIBC_CI=1 sh ./ci/run-docker.sh $TARGET

ci/docker/aarch64-linux-android/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:19.04
+FROM ubuntu:19.10
 
 RUN dpkg --add-architecture i386 && \
     apt-get update && \

ci/docker/aarch64-unknown-linux-gnu/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:19.04
+FROM ubuntu:19.10
 RUN apt-get update && apt-get install -y --no-install-recommends \
   gcc libc6-dev ca-certificates \
   gcc-aarch64-linux-gnu libc6-dev-arm64-cross qemu-user

ci/docker/aarch64-unknown-linux-musl/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:19.04
+FROM ubuntu:19.10
 
 RUN apt-get update && apt-get install -y --no-install-recommends \
   gcc make libc6-dev git curl ca-certificates \

ci/docker/arm-linux-androideabi/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:19.04
+FROM ubuntu:19.10
 
 RUN dpkg --add-architecture i386 && \
     apt-get update && \

ci/docker/arm-unknown-linux-gnueabihf/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:19.04
+FROM ubuntu:19.10
 RUN apt-get update && apt-get install -y --no-install-recommends \
   gcc libc6-dev ca-certificates \
   gcc-arm-linux-gnueabihf libc6-dev-armhf-cross qemu-user

ci/docker/arm-unknown-linux-musleabihf/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:19.04
+FROM ubuntu:19.10
 
 RUN apt-get update && apt-get install -y --no-install-recommends \
   gcc make libc6-dev git curl ca-certificates \

ci/docker/asmjs-unknown-emscripten/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:19.04
+FROM ubuntu:19.10
 
 RUN apt-get update && \
     apt-get install -y --no-install-recommends \

ci/docker/i686-linux-android/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:19.04
+FROM ubuntu:19.10
 
 RUN dpkg --add-architecture i386 && \
     apt-get update && \

ci/docker/i686-unknown-linux-gnu/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:19.04
+FROM ubuntu:19.10
 RUN apt-get update
 RUN apt-get install -y --no-install-recommends \
   gcc-multilib libc6-dev ca-certificates

ci/docker/i686-unknown-linux-musl/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:19.04
+FROM ubuntu:19.10
 
 RUN dpkg --add-architecture i386
 RUN apt-get update

ci/docker/mips-unknown-linux-gnu/Dockerfile

@@ -1,3 +1,4 @@
+# FIXME: Ubuntu 19.10 is missing gcc-mips-linux-gnu.
 FROM ubuntu:19.04
 
 RUN apt-get update && apt-get install -y --no-install-recommends \

ci/docker/mips-unknown-linux-musl/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:19.04
+FROM ubuntu:19.10
 
 RUN apt-get update && apt-get install -y --no-install-recommends \
         gcc libc6-dev qemu-user ca-certificates qemu-system-mips curl \

ci/docker/mips64-unknown-linux-gnuabi64/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:19.04
+FROM ubuntu:19.10
 
 RUN apt-get update && apt-get install -y --no-install-recommends \
         gcc libc6-dev qemu-user ca-certificates \

ci/docker/mips64-unknown-linux-muslabi64/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:19.04
+FROM ubuntu:19.10
 
 RUN apt-get update && apt-get install -y --no-install-recommends \
   gcc make libc6-dev git curl ca-certificates \

ci/docker/mips64el-unknown-linux-gnuabi64/Dockerfile

@@ -1,3 +1,4 @@
+# FIXME: Ubuntu 19.10 is missing gcc-mips-linux-gnu.
 FROM ubuntu:19.04
 
 RUN apt-get update && apt-get install -y --no-install-recommends \

ci/docker/mips64el-unknown-linux-muslabi64/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:19.04
+FROM ubuntu:19.10
 
 RUN apt-get update && apt-get install -y --no-install-recommends \
   gcc make libc6-dev git curl ca-certificates \

ci/docker/mipsel-unknown-linux-musl/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:19.04
+FROM ubuntu:19.10
 
 RUN apt-get update && apt-get install -y --no-install-recommends \
         gcc libc6-dev qemu-user ca-certificates qemu-system-mipsel curl \

ci/docker/powerpc-unknown-linux-gnu/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:19.04
+FROM ubuntu:19.10
 
 RUN apt-get update && apt-get install -y --no-install-recommends \
         gcc libc6-dev qemu-user ca-certificates \

ci/docker/powerpc64-unknown-linux-gnu/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:19.04
+FROM ubuntu:19.10
 
 RUN apt-get update && apt-get install -y --no-install-recommends \
         gcc libc6-dev qemu-user ca-certificates \

ci/docker/powerpc64le-unknown-linux-gnu/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:19.04
+FROM ubuntu:19.10
 
 RUN apt-get update && apt-get install -y --no-install-recommends \
         gcc libc6-dev qemu-user ca-certificates \

ci/docker/s390x-unknown-linux-gnu/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:19.04
+FROM ubuntu:19.10
 
 RUN apt-get update && apt-get install -y --no-install-recommends \
         curl ca-certificates \

ci/docker/sparc64-unknown-linux-gnu/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:19.04
+FROM ubuntu:19.10
 
 RUN apt-get update && apt-get install -y --no-install-recommends \
         curl ca-certificates \

ci/docker/wasm32-unknown-emscripten/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:19.04
+FROM ubuntu:19.10
 
 RUN apt-get update && \
     apt-get install -y --no-install-recommends \

ci/docker/x86_64-linux-android/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:19.04
+FROM ubuntu:19.10
 
 RUN apt-get update && \
     apt-get install -y --no-install-recommends \

ci/docker/x86_64-unknown-linux-gnu/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:19.04
+FROM ubuntu:19.10
 RUN apt-get update
 RUN apt-get install -y --no-install-recommends \
   gcc libc6-dev ca-certificates linux-headers-generic

ci/docker/x86_64-unknown-linux-gnux32/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:19.04
+FROM ubuntu:19.10
 RUN apt-get update
 RUN apt-get install -y --no-install-recommends \
   gcc-multilib libc6-dev ca-certificates

ci/docker/x86_64-unknown-linux-musl/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:19.04
+FROM ubuntu:19.10
 
 RUN apt-get update
 RUN apt-get install -y --no-install-recommends \

libc-test/build.rs

@@ -2085,6 +2085,7 @@ fn test_linux(target: &str) {
     let x86_32 = target.contains("i686");
     let x86_64 = target.contains("x86_64");
     let aarch64_musl = target.contains("aarch64") && musl;
+    let gnuabihf = target.contains("gnueabihf");
 
     let mut cfg = ctest_cfg();
     cfg.define("_GNU_SOURCE", None);
@@ -2182,12 +2183,14 @@ fn test_linux(target: &str) {
                "errno.h",
                // `sys/io.h` is only available on x86*, Alpha, IA64, and 32-bit
                // ARM: https://bugzilla.redhat.com/show_bug.cgi?id=1116162
-               [x86_64 || x86_32 || arm]: "sys/io.h",
+               // Also unavailable on gnuabihf with glibc 2.30.
+               // https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=6b33f373c7b9199e00ba5fbafd94ac9bfb4337b1
+               [(x86_64 || x86_32 || arm) && !gnuabihf]: "sys/io.h",
                // `sys/reg.h` is only available on x86 and x86_64
                [x86_64 || x86_32]: "sys/reg.h",
                // sysctl system call is deprecated and not available on musl
-               // It is also unsupported in x32:
-               [!(x32 || musl)]: "sys/sysctl.h",
+               // It is also unsupported in x32, deprecated since glibc 2.30:
+               [!(x32 || musl || gnu)]: "sys/sysctl.h",
                // <execinfo.h> is not supported by musl:
                // https://www.openwall.com/lists/musl/2015/04/09/3
                [!musl]: "execinfo.h",
@@ -2329,6 +2332,12 @@ fn test_linux(target: &str) {
             // glibcs (see https://github.com/rust-lang/libc/issues/1410)
             "ucontext_t" if gnu => true,
 
+            // FIXME: Somehow we cannot include headers correctly in glibc 2.30.
+            // So let's ignore for now and re-visit later.
+            // Probably related: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91085
+            "statx" => true,
+            "statx_timestamp" => true,
+
             _ => false,
         }
     });
@@ -2426,6 +2435,9 @@ fn test_linux(target: &str) {
             // which use Debian 10.0 is too old.
             "statx" if sparc64 => true,
 
+            // FIXME: Deprecated since glibc 2.30. Remove fn once upstream does.
+            "sysctl" if gnu => true,
+
             _ => false,
         }
     });