Update nitrokey crate to 0.4.0-alpha.3

This change updates the version of the nitrokey crate that we use to
0.4.0-alpha.3. This version is the supposedly last pre-release before
0.4.0, with no further major anticipated changes.
In order to integrate with this new version we have to adjust the way we
connect to a Nitrokey device by funneling those connection requests
through a global manager object. The rationale behind that step being
that the underlying libnitrokey actually cannot handle access of
multiple devices at the same time, and so the manager object is used to
prevent accidental wrong concurrent usage.
Because a device object now effectively keeps a reference to the
manager, we need to provide an additional lifetime to that and derived
objects.
Lastly, the use of a manager is also the reason why the tests had to be
adjusted to no longer accept device objects in their signatures, but
only the respective model for which to invoke the test. That is required
because, as elaborated earlier on, having a device object implies having
taken a reference to a manager (in that case owned by nitrokey-test),
and that reference clashes with the nitrocli code itself attempting to
take the manager. We side step this problem by merely accepting a Model
object, which can be passed around independently of the manager itself,
meaning that nitrokey-test does not need to hold such a reference while
the test is run.

Import subrepo nitrokey/:nitrokey at f150d59410eefdec2ae69b2422906a3d1d88aa07
Import subrepo nitrokey-sys/:nitrokey-sys at 8695e2c762807e033a86c8d03974b686d20cdd72
Import subrepo lazy-static/:lazy-static at b4b2b16aaa79dd7548e288455a0dbe4065bf4e1a

5 files changed, 76 insertions, 0 deletions

diff --git a/lazy-static/compiletest/tests/compile-fail/README.md b/lazy-static/compiletest/tests/compile-fail/README.md
new file mode 100644
index 0000000..58dbc3b
--- /dev/null
+++ b/lazy-static/compiletest/tests/compile-fail/README.md
@@ -0,0 +1,22 @@
+This directory contains snippets of code that should yield a
+warning/note/help/error at compilation. Syntax of annotations is described in
+[rust documentation](https://github.com/rust-lang/rust/blob/master/src/test/COMPILER_TESTS.md).
+For more information check out [`compiletest` crate](https://github.com/laumann/compiletest-rs).
+
+To run compile tests issue `cargo +nightly --test`.
+
+## Notes on working with `compiletest` crate
+
+* Currently code that is inside macro should not be annotated, as `compiletest`
+    crate cannot deal with the fact that macro invocations effectively changes
+    line numbering. To prevent this add a `// error-pattern:<your error message here>`
+    on the top of the file and make sure that you set `deny` lint level
+    if you want to test compiler message different than error.
+* `compiletest` crate by default sets `allow(dead_code)` lint level so make sure
+    that you change it to something suiting your needs even if the warning is
+    issued prior to any macro invocation.
+* If you get a message `error: 0 unexpected errors found, 1 expected errors not found`
+  despite the fact that some error was bound to occur don't worry - it's a known
+  issue in the `compiletest` crate and your error was probably not registered -
+  make sure that your annotations are correct and that you are setting correct
+  lint levels.
diff --git a/lazy-static/compiletest/tests/compile-fail/incorrect_visibility_restriction.rs b/lazy-static/compiletest/tests/compile-fail/incorrect_visibility_restriction.rs
new file mode 100644
index 0000000..360e23d
--- /dev/null
+++ b/lazy-static/compiletest/tests/compile-fail/incorrect_visibility_restriction.rs
@@ -0,0 +1,10 @@
+// incorrect visibility restriction
+#[macro_use]
+extern crate lazy_static_compiletest as lazy_static;
+
+lazy_static! {
+    pub(nonsense) static ref WRONG: () = ();
+    //~^ ERROR incorrect visibility restriction
+}
+
+fn main() { }
diff --git a/lazy-static/compiletest/tests/compile-fail/static_is_private.rs b/lazy-static/compiletest/tests/compile-fail/static_is_private.rs
new file mode 100644
index 0000000..6ebc8f5
--- /dev/null
+++ b/lazy-static/compiletest/tests/compile-fail/static_is_private.rs
@@ -0,0 +1,14 @@
+#[macro_use]
+extern crate lazy_static_compiletest as lazy_static;
+
+mod outer {
+    pub mod inner {
+        lazy_static! {
+            pub(in outer) static ref FOO: () = ();
+        }
+    }
+}
+
+fn main() {
+    assert_eq!(*outer::inner::FOO, ()); //~ ERROR static `FOO` is private
+}
diff --git a/lazy-static/compiletest/tests/compile-fail/static_is_sized.rs b/lazy-static/compiletest/tests/compile-fail/static_is_sized.rs
new file mode 100644
index 0000000..ac1cad4
--- /dev/null
+++ b/lazy-static/compiletest/tests/compile-fail/static_is_sized.rs
@@ -0,0 +1,11 @@
+// error-pattern:the size for values of type `str` cannot be known at compilation time
+#[macro_use]
+extern crate lazy_static_compiletest as lazy_static;
+
+lazy_static! {
+    pub static ref FOO: str = panic!();
+}
+
+
+fn main() {
+}
diff --git a/lazy-static/compiletest/tests/compile_tests.rs b/lazy-static/compiletest/tests/compile_tests.rs
new file mode 100644
index 0000000..d908077
--- /dev/null
+++ b/lazy-static/compiletest/tests/compile_tests.rs
@@ -0,0 +1,19 @@
+extern crate compiletest_rs as compiletest;
+
+fn run_mode(mode: &'static str) {
+    let mut config = compiletest::Config::default();
+    config.mode = mode.parse().expect("Invalid mode");
+    config.src_base = ["tests", mode].iter().collect();
+
+    config.verbose = true;
+
+    config.target_rustcflags = Some("-L target/debug/ -L target/debug/deps/".to_owned());
+    config.clean_rmeta();
+
+    compiletest::run_tests(&config);
+}
+
+#[test]
+fn compile_test() {
+    run_mode("compile-fail");
+}