lang/rust: Update to 1.47.0

[mikael]

Summary

Add powerpc64le (submitted by bdragon in D26711)
Disable DOCS, same problem as r546048
Force rebuild all consumers to catch regressions early

Test Plan

11.4 i386: ok ; firefox ok
13.0 amd64: ok ; all consumers ok
13aarch64: ok
13armv7 : ok

[mikael]

devel/racer needs to be updated
firefox/thunderbird/cliqz broken mozilla IRC logs

error: expected `,`
   --> components/style_traits/values.rs:482:39
    |
482 |                       $($css => Ok($name::$variant),)+
    |                                         ^^
    | 
   ::: components/style_traits/viewport.rs:12:1
    |
12  | / define_css_keyword_enum! {
13  | |     pub enum UserZoom {
14  | |         Zoom = "zoom",
15  | |         Fixed = "fixed",
16  | |     }
17  | | }
    | |_- in this macro invocation

error: expected `,`
   --> components/style_traits/values.rs:482:39
    |
482 |                       $($css => Ok($name::$variant),)+
    |                                         ^^
    | 
   ::: components/style_traits/viewport.rs:19:1
    |
19  | / define_css_keyword_enum! {
20  | |     pub enum Orientation {
21  | |         Auto = "auto",
22  | |         Portrait = "portrait",
23  | |         Landscape = "landscape",
24  | |     }
25  | | }
    | |_- in this macro invocation

error[E0425]: cannot find value `MAX_LENGTH` in module `cssparser_internal`
  --> components/style_traits/viewport.rs:12:1
   |
12 | / define_css_keyword_enum! {
13 | |     pub enum UserZoom {
14 | |         Zoom = "zoom",
15 | |         Fixed = "fixed",
16 | |     }
17 | | }
   | | ^
   | | |
   | |_not found in `cssparser_internal`
   |   in this macro invocation
   |
   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)

error[E0425]: cannot find value `MAX_LENGTH` in module `cssparser_internal`
  --> components/style_traits/viewport.rs:19:1
   |
19 | / define_css_keyword_enum! {
20 | |     pub enum Orientation {
21 | |         Auto = "auto",
22 | |         Portrait = "portrait",
23 | |         Landscape = "landscape",
24 | |     }
25 | | }
   | | ^
   | | |
   | |_not found in `cssparser_internal`
   |   in this macro invocation
   |
   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)

error: aborting due to 4 previous errors

For more information about this error, try `rustc --explain E0425`.

[jbeich]

In D26721#595667, @mikael wrote:

firefox/thunderbird/cliqz broken

Apply https://hg.mozilla.org/mozilla-central/rev/e2cede25c027

[bdragon]

lang/rust/distinfo

46

I just copied the initial bootstraps to 2020-08-27 as well so there won't need to be a platform specific BOOTSTRAPS_DATE override for powerpc64le (once it gets mirrored)

lang/rust/files/powerpc64le/patch-src_llvm-project_clang_lib_Basic_Targets.cpp

2

I think svn will reject having fbsd:nokeywords yes and svn:keywords being set at the same time when you try and commit.

[bdragon]

Native build on powerpc64le worked after updating the paths in distinfo.

The 2020-08-27 copy of the 1.46 powerpc64le bootstrap has made it to distcache, so it should be good to go as far as updating the paths in distinfo.

[mikael]

Update devel/racer to 2.1.36
Import https://hg.mozilla.org/integration/autoland/rev/e2cede25c027 to fix www/firefox
Import gentoo patches to fix www/firefox-esr, www/cliqz and mail/thunderbird (https://dev.gentoo.org/~whissi/mozilla/patchsets/firefox-esr-78-patches-03.tar.xz : 0036, 0037 and 0038)
Update aarch64 bootstrap (the cross compiled one doesn't work, use a native one for the time being)
Fix paths in distinfo for ppc64le

[pkubaj]

Patch doesn't apply:

C         graphics/dssim/Makefile    
>         rejected hunk @@ -2,6 +2,7 @@
C         mail/thunderbird/Makefile
>         rejected hunk @@ -3,7 +3,7 @@
C         textproc/bat/Makefile
>         rejected hunk @@ -3,7 +3,7 @@
C         www/deno/Makefile
>         rejected hunk @@ -3,6 +3,7 @@
C         www/firefox/Makefile
>         rejected hunk @@ -3,7 +3,7 @@