Update libc crate to 0.2.57

This change updates the libc crate to version 0.2.57.

Import subrepo libc/:libc at cdc48ea36d8d2890dba38e8f779001e6855339a2

1 files changed, 22 insertions, 2 deletions

diff --git a/libc/libc-test/Cargo.toml b/libc/libc-test/Cargo.toml
index 9862d3a..8d2d903 100644
--- a/libc/libc-test/Cargo.toml
+++ b/libc/libc-test/Cargo.toml
@@ -13,8 +13,8 @@ cc = "1.0"
 ctest = "0.2"
 
 [features]
-default = [ "use_std" ]
-use_std = [ "libc/use_std" ]
+default = [ "std" ]
+std = [ "libc/std" ]
 align = [ "libc/align" ]
 extra_traits = [ "libc/extra_traits" ]
 
@@ -29,6 +29,26 @@ path = "test/linux_fcntl.rs"
 harness = false
 
 [[test]]
+name = "linux-ipv6"
+path = "test/linux_ipv6.rs"
+harness = false
+
+[[test]]
+name = "linux-elf"
+path = "test/linux_elf.rs"
+harness = false
+
+[[test]]
+name = "linux-strerror_r"
+path = "test/linux_strerror_r.rs"
+harness = false
+
+[[test]]
+name = "linux-termios"
+path = "test/linux_termios.rs"
+harness = false
+
+[[test]]
 name = "cmsg"
 path = "test/cmsg.rs"
 harness = true