extra: Put the nail in the coffin, delete libextra

This commit shreds all remnants of libextra from the compiler and standard
distribution. Two modules, c_vec/tempfile, were moved into libstd after some
cleanup, and the other modules were moved to separate crates as seen fit.

Closes #8784
Closes #12413
Closes #12576

mk/crates.mk

@@ -37,7 +37,7 @@
 #
 #   DEPS_<crate>
 #	These lists are the dependencies of the <crate> that is to be built.
-#	Rust dependencies are listed bare (i.e. std, extra, green) and native
+#	Rust dependencies are listed bare (i.e. std, green) and native
 #	dependencies have a "native:" prefix (i.e. native:sundown). All deps
 #	will be built before the crate itself is built.
 #
@@ -49,23 +49,23 @@
 # automatically generated for all stage/host/target combinations.
 ################################################################################
 
-TARGET_CRATES := std extra green rustuv native flate arena glob term semver \
-                 uuid serialize sync getopts collections num test time rand
+TARGET_CRATES := std green rustuv native flate arena glob term semver \
+                 uuid serialize sync getopts collections num test time rand \
+		 workcache url
 HOST_CRATES := syntax rustc rustdoc fourcc hexfloat
 CRATES := $(TARGET_CRATES) $(HOST_CRATES)
 TOOLS := compiletest rustdoc rustc
 
 DEPS_std := native:rustrt native:compiler-rt native:backtrace
-DEPS_extra := std term sync serialize getopts collections time rand
 DEPS_green := std rand native:context_switch
 DEPS_rustuv := std native:uv native:uv_support
 DEPS_native := std
 DEPS_syntax := std term serialize collections
 DEPS_rustc := syntax native:rustllvm flate arena serialize sync getopts \
-              collections time extra
+              collections time
 DEPS_rustdoc := rustc native:sundown serialize sync getopts collections \
                 test time
-DEPS_flate := std extra native:miniz
+DEPS_flate := std native:miniz
 DEPS_arena := std collections
 DEPS_glob := std
 DEPS_serialize := std collections
@@ -78,9 +78,11 @@ DEPS_collections := std rand
 DEPS_fourcc := syntax std
 DEPS_hexfloat := syntax std
 DEPS_num := std rand
-DEPS_test := std extra collections getopts serialize term
+DEPS_test := std collections getopts serialize term time
 DEPS_time := std serialize
 DEPS_rand := std
+DEPS_url := std collections
+DEPS_workcache := std serialize collections std
 
 TOOL_DEPS_compiletest := test green rustuv getopts
 TOOL_DEPS_rustdoc := rustdoc native

src/doc/index.md

@@ -49,6 +49,8 @@ li {list-style-type: none; }
 * [The `test` library containing the unit-testing & micro-benchmark framework](test/index.html)
 * [The `time` library](time/index.html)
 * [The `uuid` 128-bit universally unique identifier library](uuid/index.html)
+* [The `url` library](url/index.html)
+* [The `workcache` library](workcache/index.html)
 
 # Tooling
 

src/doc/rust.md

@@ -787,9 +787,9 @@ Four examples of `extern crate` declarations:
 ~~~~ {.ignore}
 extern crate pcre;
 
-extern crate extra; // equivalent to: extern crate extra = "extra";
+extern crate std; // equivalent to: extern crate std = "std";
 
-extern crate rustextra = "extra"; // linking to 'extra' under another name
+extern crate ruststd = "std"; // linking to 'std' under another name
 
 extern crate foo = "some/where/rust-foo#foo:1.0"; // a full package ID for external tools
 ~~~~

src/doc/tutorial.md

@@ -3228,17 +3228,6 @@ See the [API documentation][stddoc] for details.
 
 [stddoc]: std/index.html
 
-## The extra library
-
-Rust ships with crates such as the [extra library], an accumulation of useful things,
-that are however not important enough to deserve a place in the standard
-library.  You can link to a library such as `extra` with an `extern crate extra;`.
-
-[extra library]: extra/index.html
-
-Right now `extra` contains those definitions directly, but in the future it will likely just
-re-export a bunch of 'officially blessed' crates that get managed with a package manager.
-
 # What next?
 
 Now that you know the essentials, check out any of the additional

src/etc/combine-tests.py

@@ -56,7 +56,6 @@ def scrub(b):
 #[feature(globs, macro_rules, struct_variant, managed_boxes)];
 #[allow(warnings)];
 extern crate collections;
-extern crate extra;
 """
 )
 for t in stage2_tests:
@@ -73,7 +72,6 @@ def scrub(b):
 """
 // AUTO-GENERATED FILE: DO NOT EDIT
 #[feature(globs, managed_boxes)];
-extern crate extra;
 extern crate run_pass_stage2;
 use run_pass_stage2::*;
 use std::io;

src/etc/generate-deriving-span-tests.py

@@ -38,7 +38,6 @@
 // This file was auto-generated using 'src/etc/generate-keyword-span-tests.py'
 
 #[feature(struct_variant)];
-extern crate extra;
 extern crate rand;
 
 {error_deriving}