diff --git a/dashboard/env/commit-watcher/scripts/install-apt-deps.sh b/dashboard/env/commit-watcher/scripts/install-apt-deps.sh
index 36e859c6..02e6b076 100755
--- a/dashboard/env/commit-watcher/scripts/install-apt-deps.sh
+++ b/dashboard/env/commit-watcher/scripts/install-apt-deps.sh
@@ -1,8 +1,7 @@
 set -ex
 
 apt-get update
-# For running curl to get the hg starter tarballs (faster than hg clone).
-apt-get install -y --no-install-recommends curl ca-certificates
+apt-get install -y --no-install-recommends ca-certificates
 # For building Go's bootstrap 'dist' prog
 apt-get install -y --no-install-recommends gcc libc6-dev
 # For interacting with the Go source & subrepos:
diff --git a/dashboard/env/linux-x86-base/scripts/install-apt-deps.sh b/dashboard/env/linux-x86-base/scripts/install-apt-deps.sh
index c38324c6..913aada4 100755
--- a/dashboard/env/linux-x86-base/scripts/install-apt-deps.sh
+++ b/dashboard/env/linux-x86-base/scripts/install-apt-deps.sh
@@ -1,8 +1,7 @@
 set -ex
 
 apt-get update
-# For running curl to get the hg starter tarballs (faster than hg clone).
-apt-get install -y --no-install-recommends curl ca-certificates
+apt-get install -y --no-install-recommends ca-certificates
 # Optionally used by some net/http tests:
 apt-get install -y --no-install-recommends strace 
 # For building Go's bootstrap 'dist' prog
diff --git a/dashboard/env/linux-x86-clang/scripts/install-apt-deps.sh b/dashboard/env/linux-x86-clang/scripts/install-apt-deps.sh
index 76e18734..4c14db0e 100755
--- a/dashboard/env/linux-x86-clang/scripts/install-apt-deps.sh
+++ b/dashboard/env/linux-x86-clang/scripts/install-apt-deps.sh
@@ -1,8 +1,7 @@
 set -ex
 
 apt-get update
-# For running curl to get the hg starter tarballs (faster than hg clone).
-apt-get install -y --no-install-recommends curl ca-certificates
+apt-get install -y --no-install-recommends ca-certificates
 # Optionally used by some net/http tests:
 apt-get install -y --no-install-recommends strace 
 # For building Go's bootstrap 'dist' prog
diff --git a/dashboard/env/linux-x86-nacl/scripts/install-apt-deps.sh b/dashboard/env/linux-x86-nacl/scripts/install-apt-deps.sh
index 08eeb8ef..0034fa63 100755
--- a/dashboard/env/linux-x86-nacl/scripts/install-apt-deps.sh
+++ b/dashboard/env/linux-x86-nacl/scripts/install-apt-deps.sh
@@ -1,7 +1,7 @@
 set -ex
 
 apt-get update
-# For running curl to get the hg starter tarballs (faster than hg clone).
+# curl is needed to fetch the sel_ldr nacl binaries:
 apt-get install -y --no-install-recommends curl ca-certificates
 # For building Go's bootstrap 'dist' prog
 apt-get install -y --no-install-recommends gcc libc6-dev
diff --git a/dashboard/env/linux-x86-sid/scripts/build-go-builder.sh b/dashboard/env/linux-x86-sid/scripts/build-go-builder.sh
index 9cc8285f..13b7d738 100755
--- a/dashboard/env/linux-x86-sid/scripts/build-go-builder.sh
+++ b/dashboard/env/linux-x86-sid/scripts/build-go-builder.sh
@@ -15,7 +15,7 @@ mkdir -p $GO_TOOLS
 git clone https://go.googlesource.com/tools $GO_TOOLS
 
 mkdir -p $PREFIX/bin
-(cd $GO_TOOLS && hg pull -r $BUILDER_REV -u && GOBIN=$PREFIX/bin /goroot/bin/go install golang.org/x/tools/dashboard/builder)
+(cd $GO_TOOLS && git reset --hard $BUILDER_REV && GOBIN=$PREFIX/bin /goroot/bin/go install golang.org/x/tools/dashboard/builder)
 
 rm -fR $GOROOT/bin $GOROOT/pkg $GOPATH
 
diff --git a/dashboard/env/linux-x86-sid/scripts/install-apt-deps.sh b/dashboard/env/linux-x86-sid/scripts/install-apt-deps.sh
index c38324c6..913aada4 100755
--- a/dashboard/env/linux-x86-sid/scripts/install-apt-deps.sh
+++ b/dashboard/env/linux-x86-sid/scripts/install-apt-deps.sh
@@ -1,8 +1,7 @@
 set -ex
 
 apt-get update
-# For running curl to get the hg starter tarballs (faster than hg clone).
-apt-get install -y --no-install-recommends curl ca-certificates
+apt-get install -y --no-install-recommends ca-certificates
 # Optionally used by some net/http tests:
 apt-get install -y --no-install-recommends strace 
 # For building Go's bootstrap 'dist' prog