Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

15 files changed, 1851 insertions, 0 deletions

diff --git a/vendor/filetime/.cargo-checksum.json b/vendor/filetime/.cargo-checksum.json
new file mode 100644
index 000000000..1bb0218a6
--- /dev/null
+++ b/vendor/filetime/.cargo-checksum.json
@@ -0,0 +1 @@
+{"files":{"Cargo.toml":"306f64716452fa6471a91ef01a7b11a7fa833b3c34b02578b8f1d7b988c917e3","LICENSE-APACHE":"a60eea817514531668d7e00765731449fe14d059d3249e0bc93b36de45f759f2","LICENSE-MIT":"378f5840b258e2779c39418f3f2d7b2ba96f1c7917dd6be0713f88305dbda397","README.md":"6cd295d9f4efe412971b1855ecaf7b19ef3956006a652ea205c456a5d33550c1","src/lib.rs":"a9f94f2fc09cc46acd0d5ffafea2bcf0770d85bc98245c89221b2b23dbcfcb63","src/redox.rs":"898997b73c20818cf4601a1f4bcdf1b7dbf3b5d9d071cdc9fce5d1652f6bfc43","src/unix/android.rs":"d929826a9a92003b7aaa6435adc220efbb70c15308f9eed5ee517d88451fcaf6","src/unix/linux.rs":"061f0f7bd7a41f29b9d24b6487e302d650e9399f0dcc54595211e20ae4945da6","src/unix/macos.rs":"1b19a24bee240aba8d564405991bb0ee36ba72217461c8ac6829144d28f7e046","src/unix/mod.rs":"4392d0928578de017976552fdde0a0c86ec14fabeb1f1ec87223a40f69ba3d08","src/unix/utimensat.rs":"dbb6371ffaf91754afa870aa3ceedc400530a449721d3f6c572a3907c489634d","src/unix/utimes.rs":"d2d8ca5daed3d1ec0a0aed1fc03450deb4b7f1fcdb96ed40b8d2cfefd0e827ee","src/wasm.rs":"a82734259846a3349d42da011c1065d21f3981bd20d6eb43495e34808b83af9a","src/windows.rs":"3314a0def8028d8f2a4bc01377d5874ab9ddf8684aad13573c89b427bf2d9911"},"package":"e94a7bbaa59354bc20dd75b67f23e2797b4490e9d6928203fb105c79e448c86c"}
\ No newline at end of file
diff --git a/vendor/filetime/Cargo.toml b/vendor/filetime/Cargo.toml
new file mode 100644
index 000000000..381433176
--- /dev/null
+++ b/vendor/filetime/Cargo.toml
@@ -0,0 +1,47 @@
+# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
+#
+# When uploading crates to the registry Cargo will automatically
+# "normalize" Cargo.toml files for maximal compatibility
+# with all versions of Cargo and also rewrite `path` dependencies
+# to registry (e.g., crates.io) dependencies.
+#
+# If you are reading this file be aware that the original Cargo.toml
+# will likely look very different (and much more reasonable).
+# See Cargo.toml.orig for the original contents.
+
+[package]
+edition = "2018"
+name = "filetime"
+version = "0.2.17"
+authors = ["Alex Crichton <alex@alexcrichton.com>"]
+description = """
+Platform-agnostic accessors of timestamps in File metadata
+"""
+homepage = "https://github.com/alexcrichton/filetime"
+documentation = "https://docs.rs/filetime"
+readme = "README.md"
+keywords = [
+    "timestamp",
+    "mtime",
+]
+license = "MIT/Apache-2.0"
+repository = "https://github.com/alexcrichton/filetime"
+
+[dependencies.cfg-if]
+version = "1.0.0"
+
+[dev-dependencies.tempfile]
+version = "3"
+
+[target."cfg(target_os = \"redox\")".dependencies.redox_syscall]
+version = "0.2.9"
+
+[target."cfg(unix)".dependencies.libc]
+version = "0.2.27"
+
+[target."cfg(windows)".dependencies.windows-sys]
+version = "0.36.0"
+features = [
+    "Win32_Foundation",
+    "Win32_Storage_FileSystem",
+]
diff --git a/vendor/filetime/LICENSE-APACHE b/vendor/filetime/LICENSE-APACHE
new file mode 100644
index 000000000..16fe87b06
--- /dev/null
+++ b/vendor/filetime/LICENSE-APACHE
@@ -0,0 +1,201 @@
+                              Apache License
+                        Version 2.0, January 2004
+                     http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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+Copyright [yyyy] [name of copyright owner]
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+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
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+Unless required by applicable law or agreed to in writing, software
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diff --git a/vendor/filetime/LICENSE-MIT b/vendor/filetime/LICENSE-MIT
new file mode 100644
index 000000000..39e0ed660
--- /dev/null
+++ b/vendor/filetime/LICENSE-MIT
@@ -0,0 +1,25 @@
+Copyright (c) 2014 Alex Crichton
+
+Permission is hereby granted, free of charge, to any
+person obtaining a copy of this software and associated
+documentation files (the "Software"), to deal in the
+Software without restriction, including without
+limitation the rights to use, copy, modify, merge,
+publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software
+is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice
+shall be included in all copies or substantial portions
+of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
+ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
+TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
+IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
diff --git a/vendor/filetime/README.md b/vendor/filetime/README.md
new file mode 100644
index 000000000..f85d9679b
--- /dev/null
+++ b/vendor/filetime/README.md
@@ -0,0 +1,37 @@
+# filetime
+
+[Documentation](https://docs.rs/filetime)
+
+A helper library for inspecting and setting the various timestamps of files in Rust. This
+library takes into account cross-platform differences in terms of where the
+timestamps are located, what they are called, and how to convert them into a
+platform-independent representation.
+
+```toml
+# Cargo.toml
+[dependencies]
+filetime = "0.2"
+```
+
+# Advantages over using `std::fs::Metadata`
+
+This library includes the ability to set this data, which std does not.
+
+This library, when built with `RUSTFLAGS=--cfg emulate_second_only_system` set, will return all times rounded down to the second. This emulates the behavior of some file systems, mostly [HFS](https://en.wikipedia.org/wiki/HFS_Plus), allowing debugging on other hardware.
+
+# License
+
+This project is licensed under either of
+
+ * Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
+   http://www.apache.org/licenses/LICENSE-2.0)
+ * MIT license ([LICENSE-MIT](LICENSE-MIT) or
+   http://opensource.org/licenses/MIT)
+
+at your option.
+
+### Contribution
+
+Unless you explicitly state otherwise, any contribution intentionally submitted
+for inclusion in Filetime by you, as defined in the Apache-2.0 license, shall be
+dual licensed as above, without any additional terms or conditions.
diff --git a/vendor/filetime/src/lib.rs b/vendor/filetime/src/lib.rs
new file mode 100644
index 000000000..594d8a8ae
--- /dev/null
+++ b/vendor/filetime/src/lib.rs
@@ -0,0 +1,708 @@
+//! Timestamps for files in Rust
+//!
+//! This library provides platform-agnostic inspection of the various timestamps
+//! present in the standard `fs::Metadata` structure.
+//!
+//! # Installation
+//!
+//! Add this to your `Cargo.toml`:
+//!
+//! ```toml
+//! [dependencies]
+//! filetime = "0.2"
+//! ```
+//!
+//! # Usage
+//!
+//! ```no_run
+//! use std::fs;
+//! use filetime::FileTime;
+//!
+//! let metadata = fs::metadata("foo.txt").unwrap();
+//!
+//! let mtime = FileTime::from_last_modification_time(&metadata);
+//! println!("{}", mtime);
+//!
+//! let atime = FileTime::from_last_access_time(&metadata);
+//! assert!(mtime < atime);
+//!
+//! // Inspect values that can be interpreted across platforms
+//! println!("{}", mtime.unix_seconds());
+//! println!("{}", mtime.nanoseconds());
+//!
+//! // Print the platform-specific value of seconds
+//! println!("{}", mtime.seconds());
+//! ```
+
+use std::fmt;
+use std::fs;
+use std::io;
+use std::path::Path;
+use std::time::{Duration, SystemTime, UNIX_EPOCH};
+
+cfg_if::cfg_if! {
+    if #[cfg(target_os = "redox")] {
+        #[path = "redox.rs"]
+        mod imp;
+    } else if #[cfg(windows)] {
+        #[path = "windows.rs"]
+        mod imp;
+    } else if #[cfg(target_family = "wasm")] {
+        #[path = "wasm.rs"]
+        mod imp;
+    } else {
+        #[path = "unix/mod.rs"]
+        mod imp;
+    }
+}
+
+/// A helper structure to represent a timestamp for a file.
+///
+/// The actual value contined within is platform-specific and does not have the
+/// same meaning across platforms, but comparisons and stringification can be
+/// significant among the same platform.
+#[derive(Eq, PartialEq, Ord, PartialOrd, Debug, Copy, Clone, Hash)]
+pub struct FileTime {
+    seconds: i64,
+    nanos: u32,
+}
+
+impl FileTime {
+    /// Creates a new timestamp representing a 0 time.
+    ///
+    /// Useful for creating the base of a cmp::max chain of times.
+    pub const fn zero() -> FileTime {
+        FileTime {
+            seconds: 0,
+            nanos: 0,
+        }
+    }
+
+    const fn emulate_second_only_system(self) -> FileTime {
+        if cfg!(emulate_second_only_system) {
+            FileTime {
+                seconds: self.seconds,
+                nanos: 0,
+            }
+        } else {
+            self
+        }
+    }
+
+    /// Creates a new timestamp representing the current system time.
+    ///
+    /// ```
+    /// # use filetime::FileTime;
+    /// #
+    /// # fn example() -> std::io::Result<()> {
+    /// #     let path = "";
+    /// #
+    /// filetime::set_file_mtime(path, FileTime::now())?;
+    /// #
+    /// #     Ok(())
+    /// # }
+    /// ```
+    ///
+    /// Equivalent to `FileTime::from_system_time(SystemTime::now())`.
+    pub fn now() -> FileTime {
+        FileTime::from_system_time(SystemTime::now())
+    }
+
+    /// Creates a new instance of `FileTime` with a number of seconds and
+    /// nanoseconds relative to the Unix epoch, 1970-01-01T00:00:00Z.
+    ///
+    /// Negative seconds represent times before the Unix epoch, and positive
+    /// values represent times after it. Nanos always count forwards in time.
+    ///
+    /// Note that this is typically the relative point that Unix time stamps are
+    /// from, but on Windows the native time stamp is relative to January 1,
+    /// 1601 so the return value of `seconds` from the returned `FileTime`
+    /// instance may not be the same as that passed in.
+    pub const fn from_unix_time(seconds: i64, nanos: u32) -> FileTime {
+        FileTime {
+            seconds: seconds + if cfg!(windows) { 11644473600 } else { 0 },
+            nanos,
+        }
+        .emulate_second_only_system()
+    }
+
+    /// Creates a new timestamp from the last modification time listed in the
+    /// specified metadata.
+    ///
+    /// The returned value corresponds to the `mtime` field of `stat` on Unix
+    /// platforms and the `ftLastWriteTime` field on Windows platforms.
+    pub fn from_last_modification_time(meta: &fs::Metadata) -> FileTime {
+        imp::from_last_modification_time(meta).emulate_second_only_system()
+    }
+
+    /// Creates a new timestamp from the last access time listed in the
+    /// specified metadata.
+    ///
+    /// The returned value corresponds to the `atime` field of `stat` on Unix
+    /// platforms and the `ftLastAccessTime` field on Windows platforms.
+    pub fn from_last_access_time(meta: &fs::Metadata) -> FileTime {
+        imp::from_last_access_time(meta).emulate_second_only_system()
+    }
+
+    /// Creates a new timestamp from the creation time listed in the specified
+    /// metadata.
+    ///
+    /// The returned value corresponds to the `birthtime` field of `stat` on
+    /// Unix platforms and the `ftCreationTime` field on Windows platforms. Note
+    /// that not all Unix platforms have this field available and may return
+    /// `None` in some circumstances.
+    pub fn from_creation_time(meta: &fs::Metadata) -> Option<FileTime> {
+        imp::from_creation_time(meta).map(|x| x.emulate_second_only_system())
+    }
+
+    /// Creates a new timestamp from the given SystemTime.
+    ///
+    /// Windows counts file times since 1601-01-01T00:00:00Z, and cannot
+    /// represent times before this, but it's possible to create a SystemTime
+    /// that does. This function will error if passed such a SystemTime.
+    pub fn from_system_time(time: SystemTime) -> FileTime {
+        let epoch = if cfg!(windows) {
+            UNIX_EPOCH - Duration::from_secs(11644473600)
+        } else {
+            UNIX_EPOCH
+        };
+
+        time.duration_since(epoch)
+            .map(|d| FileTime {
+                seconds: d.as_secs() as i64,
+                nanos: d.subsec_nanos(),
+            })
+            .unwrap_or_else(|e| {
+                let until_epoch = e.duration();
+                let (sec_offset, nanos) = if until_epoch.subsec_nanos() == 0 {
+                    (0, 0)
+                } else {
+                    (-1, 1_000_000_000 - until_epoch.subsec_nanos())
+                };
+
+                FileTime {
+                    seconds: -1 * until_epoch.as_secs() as i64 + sec_offset,
+                    nanos,
+                }
+            })
+            .emulate_second_only_system()
+    }
+
+    /// Returns the whole number of seconds represented by this timestamp.
+    ///
+    /// Note that this value's meaning is **platform specific**. On Unix
+    /// platform time stamps are typically relative to January 1, 1970, but on
+    /// Windows platforms time stamps are relative to January 1, 1601.
+    pub const fn seconds(&self) -> i64 {
+        self.seconds
+    }
+
+    /// Returns the whole number of seconds represented by this timestamp,
+    /// relative to the Unix epoch start of January 1, 1970.
+    ///
+    /// Note that this does not return the same value as `seconds` for Windows
+    /// platforms as seconds are relative to a different date there.
+    pub const fn unix_seconds(&self) -> i64 {
+        self.seconds - if cfg!(windows) { 11644473600 } else { 0 }
+    }
+
+    /// Returns the nanosecond precision of this timestamp.
+    ///
+    /// The returned value is always less than one billion and represents a
+    /// portion of a second forward from the seconds returned by the `seconds`
+    /// method.
+    pub const fn nanoseconds(&self) -> u32 {
+        self.nanos
+    }
+}
+
+impl fmt::Display for FileTime {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "{}.{:09}s", self.seconds, self.nanos)
+    }
+}
+
+impl From<SystemTime> for FileTime {
+    fn from(time: SystemTime) -> FileTime {
+        FileTime::from_system_time(time)
+    }
+}
+
+/// Set the last access and modification times for a file on the filesystem.
+///
+/// This function will set the `atime` and `mtime` metadata fields for a file
+/// on the local filesystem, returning any error encountered.
+pub fn set_file_times<P>(p: P, atime: FileTime, mtime: FileTime) -> io::Result<()>
+where
+    P: AsRef<Path>,
+{
+    imp::set_file_times(p.as_ref(), atime, mtime)
+}
+
+/// Set the last access and modification times for a file handle.
+///
+/// This function will either or both of  the `atime` and `mtime` metadata
+/// fields for a file handle , returning any error encountered. If `None` is
+/// specified then the time won't be updated. If `None` is specified for both
+/// options then no action is taken.
+pub fn set_file_handle_times(
+    f: &fs::File,
+    atime: Option<FileTime>,
+    mtime: Option<FileTime>,
+) -> io::Result<()> {
+    imp::set_file_handle_times(f, atime, mtime)
+}
+
+/// Set the last access and modification times for a file on the filesystem.
+/// This function does not follow symlink.
+///
+/// This function will set the `atime` and `mtime` metadata fields for a file
+/// on the local filesystem, returning any error encountered.
+pub fn set_symlink_file_times<P>(p: P, atime: FileTime, mtime: FileTime) -> io::Result<()>
+where
+    P: AsRef<Path>,
+{
+    imp::set_symlink_file_times(p.as_ref(), atime, mtime)
+}
+
+/// Set the last modification time for a file on the filesystem.
+///
+/// This function will set the `mtime` metadata field for a file on the local
+/// filesystem, returning any error encountered.
+///
+/// # Platform support
+///
+/// Where supported this will attempt to issue just one syscall to update only
+/// the `mtime`, but where not supported this may issue one syscall to learn the
+/// existing `atime` so only the `mtime` can be configured.
+pub fn set_file_mtime<P>(p: P, mtime: FileTime) -> io::Result<()>
+where
+    P: AsRef<Path>,
+{
+    imp::set_file_mtime(p.as_ref(), mtime)
+}
+
+/// Set the last access time for a file on the filesystem.
+///
+/// This function will set the `atime` metadata field for a file on the local
+/// filesystem, returning any error encountered.
+///
+/// # Platform support
+///
+/// Where supported this will attempt to issue just one syscall to update only
+/// the `atime`, but where not supported this may issue one syscall to learn the
+/// existing `mtime` so only the `atime` can be configured.
+pub fn set_file_atime<P>(p: P, atime: FileTime) -> io::Result<()>
+where
+    P: AsRef<Path>,
+{
+    imp::set_file_atime(p.as_ref(), atime)
+}
+
+#[cfg(test)]
+mod tests {
+    use super::{
+        set_file_atime, set_file_handle_times, set_file_mtime, set_file_times,
+        set_symlink_file_times, FileTime,
+    };
+    use std::fs::{self, File};
+    use std::io;
+    use std::path::Path;
+    use std::time::{Duration, UNIX_EPOCH};
+    use tempfile::Builder;
+
+    #[cfg(unix)]
+    fn make_symlink_file<P, Q>(src: P, dst: Q) -> io::Result<()>
+    where
+        P: AsRef<Path>,
+        Q: AsRef<Path>,
+    {
+        use std::os::unix::fs::symlink;
+        symlink(src, dst)
+    }
+
+    #[cfg(windows)]
+    fn make_symlink_file<P, Q>(src: P, dst: Q) -> io::Result<()>
+    where
+        P: AsRef<Path>,
+        Q: AsRef<Path>,
+    {
+        use std::os::windows::fs::symlink_file;
+        symlink_file(src, dst)
+    }
+
+    #[cfg(unix)]
+    fn make_symlink_dir<P, Q>(src: P, dst: Q) -> io::Result<()>
+    where
+        P: AsRef<Path>,
+        Q: AsRef<Path>,
+    {
+        use std::os::unix::fs::symlink;
+        symlink(src, dst)
+    }
+
+    #[cfg(windows)]
+    fn make_symlink_dir<P, Q>(src: P, dst: Q) -> io::Result<()>
+    where
+        P: AsRef<Path>,
+        Q: AsRef<Path>,
+    {
+        use std::os::windows::fs::symlink_dir;
+        symlink_dir(src, dst)
+    }
+
+    #[test]
+    #[cfg(windows)]
+    fn from_unix_time_test() {
+        let time = FileTime::from_unix_time(10, 100_000_000);
+        assert_eq!(11644473610, time.seconds);
+        assert_eq!(100_000_000, time.nanos);
+
+        let time = FileTime::from_unix_time(-10, 100_000_000);
+        assert_eq!(11644473590, time.seconds);
+        assert_eq!(100_000_000, time.nanos);
+
+        let time = FileTime::from_unix_time(-12_000_000_000, 0);
+        assert_eq!(-355526400, time.seconds);
+        assert_eq!(0, time.nanos);
+    }
+
+    #[test]
+    #[cfg(not(windows))]
+    fn from_unix_time_test() {
+        let time = FileTime::from_unix_time(10, 100_000_000);
+        assert_eq!(10, time.seconds);
+        assert_eq!(100_000_000, time.nanos);
+
+        let time = FileTime::from_unix_time(-10, 100_000_000);
+        assert_eq!(-10, time.seconds);
+        assert_eq!(100_000_000, time.nanos);
+
+        let time = FileTime::from_unix_time(-12_000_000_000, 0);
+        assert_eq!(-12_000_000_000, time.seconds);
+        assert_eq!(0, time.nanos);
+    }
+
+    #[test]
+    #[cfg(windows)]
+    fn from_system_time_test() {
+        let time = FileTime::from_system_time(UNIX_EPOCH + Duration::from_secs(10));
+        assert_eq!(11644473610, time.seconds);
+        assert_eq!(0, time.nanos);
+
+        let time = FileTime::from_system_time(UNIX_EPOCH - Duration::from_secs(10));
+        assert_eq!(11644473590, time.seconds);
+        assert_eq!(0, time.nanos);
+
+        let time = FileTime::from_system_time(UNIX_EPOCH - Duration::from_millis(1100));
+        assert_eq!(11644473598, time.seconds);
+        assert_eq!(900_000_000, time.nanos);
+
+        let time = FileTime::from_system_time(UNIX_EPOCH - Duration::from_secs(12_000_000_000));
+        assert_eq!(-355526400, time.seconds);
+        assert_eq!(0, time.nanos);
+    }
+
+    #[test]
+    #[cfg(not(windows))]
+    fn from_system_time_test() {
+        let time = FileTime::from_system_time(UNIX_EPOCH + Duration::from_secs(10));
+        assert_eq!(10, time.seconds);
+        assert_eq!(0, time.nanos);
+
+        let time = FileTime::from_system_time(UNIX_EPOCH - Duration::from_secs(10));
+        assert_eq!(-10, time.seconds);
+        assert_eq!(0, time.nanos);
+
+        let time = FileTime::from_system_time(UNIX_EPOCH - Duration::from_millis(1100));
+        assert_eq!(-2, time.seconds);
+        assert_eq!(900_000_000, time.nanos);
+
+        let time = FileTime::from_system_time(UNIX_EPOCH - Duration::from_secs(12_000_000));
+        assert_eq!(-12_000_000, time.seconds);
+        assert_eq!(0, time.nanos);
+    }
+
+    #[test]
+    fn set_file_times_test() -> io::Result<()> {
+        let td = Builder::new().prefix("filetime").tempdir()?;
+        let path = td.path().join("foo.txt");
+        let mut f = File::create(&path)?;
+
+        let metadata = fs::metadata(&path)?;
+        let mtime = FileTime::from_last_modification_time(&metadata);
+        let atime = FileTime::from_last_access_time(&metadata);
+        set_file_times(&path, atime, mtime)?;
+
+        let new_mtime = FileTime::from_unix_time(10_000, 0);
+        set_file_times(&path, atime, new_mtime)?;
+
+        let metadata = fs::metadata(&path)?;
+        let mtime = FileTime::from_last_modification_time(&metadata);
+        assert_eq!(mtime, new_mtime, "modification should be updated");
+
+        // Update just mtime
+        let new_mtime = FileTime::from_unix_time(20_000, 0);
+        set_file_handle_times(&mut f, None, Some(new_mtime))?;
+        let metadata = f.metadata()?;
+        let mtime = FileTime::from_last_modification_time(&metadata);
+        assert_eq!(mtime, new_mtime, "modification time should be updated");
+        let new_atime = FileTime::from_last_access_time(&metadata);
+        assert_eq!(atime, new_atime, "accessed time should not be updated");
+
+        // Update just atime
+        let new_atime = FileTime::from_unix_time(30_000, 0);
+        set_file_handle_times(&mut f, Some(new_atime), None)?;
+        let metadata = f.metadata()?;
+        let mtime = FileTime::from_last_modification_time(&metadata);
+        assert_eq!(mtime, new_mtime, "modification time should not be updated");
+        let atime = FileTime::from_last_access_time(&metadata);
+        assert_eq!(atime, new_atime, "accessed time should be updated");
+
+        let spath = td.path().join("bar.txt");
+        make_symlink_file(&path, &spath)?;
+        let metadata = fs::symlink_metadata(&spath)?;
+        let smtime = FileTime::from_last_modification_time(&metadata);
+
+        set_file_times(&spath, atime, mtime)?;
+
+        let metadata = fs::metadata(&path)?;
+        let cur_mtime = FileTime::from_last_modification_time(&metadata);
+        assert_eq!(mtime, cur_mtime);
+
+        let metadata = fs::symlink_metadata(&spath)?;
+        let cur_mtime = FileTime::from_last_modification_time(&metadata);
+        assert_eq!(smtime, cur_mtime);
+
+        set_file_times(&spath, atime, new_mtime)?;
+
+        let metadata = fs::metadata(&path)?;
+        let mtime = FileTime::from_last_modification_time(&metadata);
+        assert_eq!(mtime, new_mtime);
+
+        let metadata = fs::symlink_metadata(&spath)?;
+        let mtime = FileTime::from_last_modification_time(&metadata);
+        assert_eq!(mtime, smtime);
+        Ok(())
+    }
+
+    #[test]
+    fn set_dir_times_test() -> io::Result<()> {
+        let td = Builder::new().prefix("filetime").tempdir()?;
+        let path = td.path().join("foo");
+        fs::create_dir(&path)?;
+
+        let metadata = fs::metadata(&path)?;
+        let mtime = FileTime::from_last_modification_time(&metadata);
+        let atime = FileTime::from_last_access_time(&metadata);
+        set_file_times(&path, atime, mtime)?;
+
+        let new_mtime = FileTime::from_unix_time(10_000, 0);
+        set_file_times(&path, atime, new_mtime)?;
+
+        let metadata = fs::metadata(&path)?;
+        let mtime = FileTime::from_last_modification_time(&metadata);
+        assert_eq!(mtime, new_mtime, "modification should be updated");
+
+        // Update just mtime
+        let new_mtime = FileTime::from_unix_time(20_000, 0);
+        set_file_mtime(&path, new_mtime)?;
+        let metadata = fs::metadata(&path)?;
+        let mtime = FileTime::from_last_modification_time(&metadata);
+        assert_eq!(mtime, new_mtime, "modification time should be updated");
+        let new_atime = FileTime::from_last_access_time(&metadata);
+        assert_eq!(atime, new_atime, "accessed time should not be updated");
+
+        // Update just atime
+        let new_atime = FileTime::from_unix_time(30_000, 0);
+        set_file_atime(&path, new_atime)?;
+        let metadata = fs::metadata(&path)?;
+        let mtime = FileTime::from_last_modification_time(&metadata);
+        assert_eq!(mtime, new_mtime, "modification time should not be updated");
+        let atime = FileTime::from_last_access_time(&metadata);
+        assert_eq!(atime, new_atime, "accessed time should be updated");
+
+        let spath = td.path().join("bar");
+        make_symlink_dir(&path, &spath)?;
+        let metadata = fs::symlink_metadata(&spath)?;
+        let smtime = FileTime::from_last_modification_time(&metadata);
+
+        set_file_times(&spath, atime, mtime)?;
+
+        let metadata = fs::metadata(&path)?;
+        let cur_mtime = FileTime::from_last_modification_time(&metadata);
+        assert_eq!(mtime, cur_mtime);
+
+        let metadata = fs::symlink_metadata(&spath)?;
+        let cur_mtime = FileTime::from_last_modification_time(&metadata);
+        assert_eq!(smtime, cur_mtime);
+
+        set_file_times(&spath, atime, new_mtime)?;
+
+        let metadata = fs::metadata(&path)?;
+        let mtime = FileTime::from_last_modification_time(&metadata);
+        assert_eq!(mtime, new_mtime);
+
+        let metadata = fs::symlink_metadata(&spath)?;
+        let mtime = FileTime::from_last_modification_time(&metadata);
+        assert_eq!(mtime, smtime);
+        Ok(())
+    }
+
+    #[test]
+    fn set_file_times_pre_unix_epoch_test() {
+        let td = Builder::new().prefix("filetime").tempdir().unwrap();
+        let path = td.path().join("foo.txt");
+        File::create(&path).unwrap();
+
+        let metadata = fs::metadata(&path).unwrap();
+        let mtime = FileTime::from_last_modification_time(&metadata);
+        let atime = FileTime::from_last_access_time(&metadata);
+        set_file_times(&path, atime, mtime).unwrap();
+
+        let new_mtime = FileTime::from_unix_time(-10_000, 0);
+        set_file_times(&path, atime, new_mtime).unwrap();
+
+        let metadata = fs::metadata(&path).unwrap();
+        let mtime = FileTime::from_last_modification_time(&metadata);
+        assert_eq!(mtime, new_mtime);
+    }
+
+    #[test]
+    #[cfg(windows)]
+    fn set_file_times_pre_windows_epoch_test() {
+        let td = Builder::new().prefix("filetime").tempdir().unwrap();
+        let path = td.path().join("foo.txt");
+        File::create(&path).unwrap();
+
+        let metadata = fs::metadata(&path).unwrap();
+        let mtime = FileTime::from_last_modification_time(&metadata);
+        let atime = FileTime::from_last_access_time(&metadata);
+        set_file_times(&path, atime, mtime).unwrap();
+
+        let new_mtime = FileTime::from_unix_time(-12_000_000_000, 0);
+        assert!(set_file_times(&path, atime, new_mtime).is_err());
+    }
+
+    #[test]
+    fn set_symlink_file_times_test() {
+        let td = Builder::new().prefix("filetime").tempdir().unwrap();
+        let path = td.path().join("foo.txt");
+        File::create(&path).unwrap();
+
+        let metadata = fs::metadata(&path).unwrap();
+        let mtime = FileTime::from_last_modification_time(&metadata);
+        let atime = FileTime::from_last_access_time(&metadata);
+        set_symlink_file_times(&path, atime, mtime).unwrap();
+
+        let new_mtime = FileTime::from_unix_time(10_000, 0);
+        set_symlink_file_times(&path, atime, new_mtime).unwrap();
+
+        let metadata = fs::metadata(&path).unwrap();
+        let mtime = FileTime::from_last_modification_time(&metadata);
+        assert_eq!(mtime, new_mtime);
+
+        let spath = td.path().join("bar.txt");
+        make_symlink_file(&path, &spath).unwrap();
+
+        let metadata = fs::symlink_metadata(&spath).unwrap();
+        let smtime = FileTime::from_last_modification_time(&metadata);
+        let satime = FileTime::from_last_access_time(&metadata);
+        set_symlink_file_times(&spath, smtime, satime).unwrap();
+
+        let metadata = fs::metadata(&path).unwrap();
+        let mtime = FileTime::from_last_modification_time(&metadata);
+        assert_eq!(mtime, new_mtime);
+
+        let new_smtime = FileTime::from_unix_time(20_000, 0);
+        set_symlink_file_times(&spath, atime, new_smtime).unwrap();
+
+        let metadata = fs::metadata(&spath).unwrap();
+        let mtime = FileTime::from_last_modification_time(&metadata);
+        assert_eq!(mtime, new_mtime);
+
+        let metadata = fs::symlink_metadata(&spath).unwrap();
+        let mtime = FileTime::from_last_modification_time(&metadata);
+        assert_eq!(mtime, new_smtime);
+    }
+
+    #[test]
+    fn set_symlink_dir_times_test() {
+        let td = Builder::new().prefix("filetime").tempdir().unwrap();
+        let path = td.path().join("foo");
+        fs::create_dir(&path).unwrap();
+
+        let metadata = fs::metadata(&path).unwrap();
+        let mtime = FileTime::from_last_modification_time(&metadata);
+        let atime = FileTime::from_last_access_time(&metadata);
+        set_symlink_file_times(&path, atime, mtime).unwrap();
+
+        let new_mtime = FileTime::from_unix_time(10_000, 0);
+        set_symlink_file_times(&path, atime, new_mtime).unwrap();
+
+        let metadata = fs::metadata(&path).unwrap();
+        let mtime = FileTime::from_last_modification_time(&metadata);
+        assert_eq!(mtime, new_mtime);
+
+        let spath = td.path().join("bar");
+        make_symlink_dir(&path, &spath).unwrap();
+
+        let metadata = fs::symlink_metadata(&spath).unwrap();
+        let smtime = FileTime::from_last_modification_time(&metadata);
+        let satime = FileTime::from_last_access_time(&metadata);
+        set_symlink_file_times(&spath, smtime, satime).unwrap();
+
+        let metadata = fs::metadata(&path).unwrap();
+        let mtime = FileTime::from_last_modification_time(&metadata);
+        assert_eq!(mtime, new_mtime);
+
+        let new_smtime = FileTime::from_unix_time(20_000, 0);
+        set_symlink_file_times(&spath, atime, new_smtime).unwrap();
+
+        let metadata = fs::metadata(&spath).unwrap();
+        let mtime = FileTime::from_last_modification_time(&metadata);
+        assert_eq!(mtime, new_mtime);
+
+        let metadata = fs::symlink_metadata(&spath).unwrap();
+        let mtime = FileTime::from_last_modification_time(&metadata);
+        assert_eq!(mtime, new_smtime);
+    }
+
+    #[test]
+    fn set_single_time_test() {
+        use super::{set_file_atime, set_file_mtime};
+
+        let td = Builder::new().prefix("filetime").tempdir().unwrap();
+        let path = td.path().join("foo.txt");
+        File::create(&path).unwrap();
+
+        let metadata = fs::metadata(&path).unwrap();
+        let mtime = FileTime::from_last_modification_time(&metadata);
+        let atime = FileTime::from_last_access_time(&metadata);
+        set_file_times(&path, atime, mtime).unwrap();
+
+        let new_mtime = FileTime::from_unix_time(10_000, 0);
+        set_file_mtime(&path, new_mtime).unwrap();
+
+        let metadata = fs::metadata(&path).unwrap();
+        let mtime = FileTime::from_last_modification_time(&metadata);
+        assert_eq!(mtime, new_mtime, "modification time should be updated");
+        assert_eq!(
+            atime,
+            FileTime::from_last_access_time(&metadata),
+            "access time should not be updated",
+        );
+
+        let new_atime = FileTime::from_unix_time(20_000, 0);
+        set_file_atime(&path, new_atime).unwrap();
+
+        let metadata = fs::metadata(&path).unwrap();
+        let atime = FileTime::from_last_access_time(&metadata);
+        assert_eq!(atime, new_atime, "access time should be updated");
+        assert_eq!(
+            mtime,
+            FileTime::from_last_modification_time(&metadata),
+            "modification time should not be updated"
+        );
+    }
+}
diff --git a/vendor/filetime/src/redox.rs b/vendor/filetime/src/redox.rs
new file mode 100644
index 000000000..b189ea586
--- /dev/null
+++ b/vendor/filetime/src/redox.rs
@@ -0,0 +1,118 @@
+use crate::FileTime;
+use std::fs::{self, File};
+use std::io;
+use std::os::unix::prelude::*;
+use std::path::Path;
+
+pub fn set_file_times(p: &Path, atime: FileTime, mtime: FileTime) -> io::Result<()> {
+    let fd = open_redox(p, 0).map_err(|err| io::Error::from_raw_os_error(err.errno))?;
+    let res = set_file_times_redox(fd, atime, mtime);
+    let _ = syscall::close(fd);
+    res
+}
+
+pub fn set_file_mtime(p: &Path, mtime: FileTime) -> io::Result<()> {
+    let fd = open_redox(p, 0).map_err(|err| io::Error::from_raw_os_error(err.errno))?;
+    let mut st = syscall::Stat::default();
+    let res = match syscall::fstat(fd, &mut st) {
+        Err(err) => Err(io::Error::from_raw_os_error(err.errno)),
+        Ok(_) => set_file_times_redox(
+            fd,
+            FileTime {
+                seconds: st.st_atime as i64,
+                nanos: st.st_atime_nsec as u32,
+            },
+            mtime,
+        ),
+    };
+    let _ = syscall::close(fd);
+    res
+}
+
+pub fn set_file_atime(p: &Path, atime: FileTime) -> io::Result<()> {
+    let fd = open_redox(p, 0).map_err(|err| io::Error::from_raw_os_error(err.errno))?;
+    let mut st = syscall::Stat::default();
+    let res = match syscall::fstat(fd, &mut st) {
+        Err(err) => Err(io::Error::from_raw_os_error(err.errno)),
+        Ok(_) => set_file_times_redox(
+            fd,
+            atime,
+            FileTime {
+                seconds: st.st_mtime as i64,
+                nanos: st.st_mtime_nsec as u32,
+            },
+        ),
+    };
+    let _ = syscall::close(fd);
+    res
+}
+
+pub fn set_symlink_file_times(p: &Path, atime: FileTime, mtime: FileTime) -> io::Result<()> {
+    let fd = open_redox(p, syscall::O_NOFOLLOW)
+        .map_err(|err| io::Error::from_raw_os_error(err.errno))?;
+    let res = set_file_times_redox(fd, atime, mtime);
+    let _ = syscall::close(fd);
+    res
+}
+
+pub fn set_file_handle_times(
+    f: &File,
+    atime: Option<FileTime>,
+    mtime: Option<FileTime>,
+) -> io::Result<()> {
+    let (atime1, mtime1) = match (atime, mtime) {
+        (Some(a), Some(b)) => (a, b),
+        (None, None) => return Ok(()),
+        (Some(a), None) => {
+            let meta = f.metadata()?;
+            (a, FileTime::from_last_modification_time(&meta))
+        }
+        (None, Some(b)) => {
+            let meta = f.metadata()?;
+            (FileTime::from_last_access_time(&meta), b)
+        }
+    };
+    set_file_times_redox(f.as_raw_fd() as usize, atime1, mtime1)
+}
+
+fn open_redox(path: &Path, flags: usize) -> syscall::Result<usize> {
+    match path.to_str() {
+        Some(string) => syscall::open(string, flags),
+        None => Err(syscall::Error::new(syscall::EINVAL)),
+    }
+}
+
+fn set_file_times_redox(fd: usize, atime: FileTime, mtime: FileTime) -> io::Result<()> {
+    use syscall::TimeSpec;
+
+    fn to_timespec(ft: &FileTime) -> TimeSpec {
+        TimeSpec {
+            tv_sec: ft.seconds(),
+            tv_nsec: ft.nanoseconds() as i32,
+        }
+    }
+
+    let times = [to_timespec(&atime), to_timespec(&mtime)];
+    match syscall::futimens(fd, &times) {
+        Ok(_) => Ok(()),
+        Err(err) => Err(io::Error::from_raw_os_error(err.errno)),
+    }
+}
+
+pub fn from_last_modification_time(meta: &fs::Metadata) -> FileTime {
+    FileTime {
+        seconds: meta.mtime(),
+        nanos: meta.mtime_nsec() as u32,
+    }
+}
+
+pub fn from_last_access_time(meta: &fs::Metadata) -> FileTime {
+    FileTime {
+        seconds: meta.atime(),
+        nanos: meta.atime_nsec() as u32,
+    }
+}
+
+pub fn from_creation_time(_meta: &fs::Metadata) -> Option<FileTime> {
+    None
+}
diff --git a/vendor/filetime/src/unix/android.rs b/vendor/filetime/src/unix/android.rs
new file mode 100644
index 000000000..afcd44866
--- /dev/null
+++ b/vendor/filetime/src/unix/android.rs
@@ -0,0 +1,63 @@
+use crate::FileTime;
+use std::ffi::CString;
+use std::fs::File;
+use std::io;
+use std::os::unix::prelude::*;
+use std::path::Path;
+
+pub fn set_file_times(p: &Path, atime: FileTime, mtime: FileTime) -> io::Result<()> {
+    set_times(p, Some(atime), Some(mtime), false)
+}
+
+pub fn set_file_mtime(p: &Path, mtime: FileTime) -> io::Result<()> {
+    set_times(p, None, Some(mtime), false)
+}
+
+pub fn set_file_atime(p: &Path, atime: FileTime) -> io::Result<()> {
+    set_times(p, Some(atime), None, false)
+}
+
+pub fn set_file_handle_times(
+    f: &File,
+    atime: Option<FileTime>,
+    mtime: Option<FileTime>,
+) -> io::Result<()> {
+    let times = [super::to_timespec(&atime), super::to_timespec(&mtime)];
+
+    // On Android NDK before version 19, `futimens` is not available.
+    //
+    // For better compatibility, we reimplement `futimens` using `utimensat`,
+    // the same way as bionic libc uses it to implement `futimens`.
+    let rc = unsafe { libc::utimensat(f.as_raw_fd(), core::ptr::null(), times.as_ptr(), 0) };
+    if rc == 0 {
+        Ok(())
+    } else {
+        Err(io::Error::last_os_error())
+    }
+}
+
+pub fn set_symlink_file_times(p: &Path, atime: FileTime, mtime: FileTime) -> io::Result<()> {
+    set_times(p, Some(atime), Some(mtime), true)
+}
+
+fn set_times(
+    p: &Path,
+    atime: Option<FileTime>,
+    mtime: Option<FileTime>,
+    symlink: bool,
+) -> io::Result<()> {
+    let flags = if symlink {
+        libc::AT_SYMLINK_NOFOLLOW
+    } else {
+        0
+    };
+
+    let p = CString::new(p.as_os_str().as_bytes())?;
+    let times = [super::to_timespec(&atime), super::to_timespec(&mtime)];
+    let rc = unsafe { libc::utimensat(libc::AT_FDCWD, p.as_ptr(), times.as_ptr(), flags) };
+    if rc == 0 {
+        Ok(())
+    } else {
+        Err(io::Error::last_os_error())
+    }
+}
diff --git a/vendor/filetime/src/unix/linux.rs b/vendor/filetime/src/unix/linux.rs
new file mode 100644
index 000000000..c803e0217
--- /dev/null
+++ b/vendor/filetime/src/unix/linux.rs
@@ -0,0 +1,102 @@
+//! On Linux we try to use the more accurate `utimensat` syscall but this isn't
+//! always available so we also fall back to `utimes` if we couldn't find
+//! `utimensat` at runtime.
+
+use crate::FileTime;
+use std::ffi::CString;
+use std::fs;
+use std::io;
+use std::os::unix::prelude::*;
+use std::path::Path;
+use std::ptr;
+use std::sync::atomic::AtomicBool;
+use std::sync::atomic::Ordering::SeqCst;
+
+pub fn set_file_times(p: &Path, atime: FileTime, mtime: FileTime) -> io::Result<()> {
+    set_times(p, Some(atime), Some(mtime), false)
+}
+
+pub fn set_file_mtime(p: &Path, mtime: FileTime) -> io::Result<()> {
+    set_times(p, None, Some(mtime), false)
+}
+
+pub fn set_file_atime(p: &Path, atime: FileTime) -> io::Result<()> {
+    set_times(p, Some(atime), None, false)
+}
+
+pub fn set_file_handle_times(
+    f: &fs::File,
+    atime: Option<FileTime>,
+    mtime: Option<FileTime>,
+) -> io::Result<()> {
+    // Attempt to use the `utimensat` syscall, but if it's not supported by the
+    // current kernel then fall back to an older syscall.
+    static INVALID: AtomicBool = AtomicBool::new(false);
+    if !INVALID.load(SeqCst) {
+        let times = [super::to_timespec(&atime), super::to_timespec(&mtime)];
+        let rc = unsafe {
+            libc::syscall(
+                libc::SYS_utimensat,
+                f.as_raw_fd(),
+                ptr::null::<libc::c_char>(),
+                times.as_ptr(),
+                0,
+            )
+        };
+        if rc == 0 {
+            return Ok(());
+        }
+        let err = io::Error::last_os_error();
+        if err.raw_os_error() == Some(libc::ENOSYS) {
+            INVALID.store(true, SeqCst);
+        } else {
+            return Err(err);
+        }
+    }
+
+    super::utimes::set_file_handle_times(f, atime, mtime)
+}
+
+pub fn set_symlink_file_times(p: &Path, atime: FileTime, mtime: FileTime) -> io::Result<()> {
+    set_times(p, Some(atime), Some(mtime), true)
+}
+
+fn set_times(
+    p: &Path,
+    atime: Option<FileTime>,
+    mtime: Option<FileTime>,
+    symlink: bool,
+) -> io::Result<()> {
+    let flags = if symlink {
+        libc::AT_SYMLINK_NOFOLLOW
+    } else {
+        0
+    };
+
+    // Same as the `if` statement above.
+    static INVALID: AtomicBool = AtomicBool::new(false);
+    if !INVALID.load(SeqCst) {
+        let p = CString::new(p.as_os_str().as_bytes())?;
+        let times = [super::to_timespec(&atime), super::to_timespec(&mtime)];
+        let rc = unsafe {
+            libc::syscall(
+                libc::SYS_utimensat,
+                libc::AT_FDCWD,
+                p.as_ptr(),
+                times.as_ptr(),
+                flags,
+            )
+        };
+        if rc == 0 {
+            return Ok(());
+        }
+        let err = io::Error::last_os_error();
+        if err.raw_os_error() == Some(libc::ENOSYS) {
+            INVALID.store(true, SeqCst);
+        } else {
+            return Err(err);
+        }
+    }
+
+    super::utimes::set_times(p, atime, mtime, symlink)
+}
diff --git a/vendor/filetime/src/unix/macos.rs b/vendor/filetime/src/unix/macos.rs
new file mode 100644
index 000000000..efe92d4ae
--- /dev/null
+++ b/vendor/filetime/src/unix/macos.rs
@@ -0,0 +1,108 @@
+//! Beginning with macOS 10.13, `utimensat` is supported by the OS, so here, we check if the symbol exists
+//! and if not, we fallback to `utimes`.
+use crate::FileTime;
+use libc::{c_char, c_int, timespec};
+use std::ffi::{CStr, CString};
+use std::fs::File;
+use std::os::unix::prelude::*;
+use std::path::Path;
+use std::sync::atomic::AtomicUsize;
+use std::sync::atomic::Ordering::SeqCst;
+use std::{io, mem};
+
+pub fn set_file_times(p: &Path, atime: FileTime, mtime: FileTime) -> io::Result<()> {
+    set_times(p, Some(atime), Some(mtime), false)
+}
+
+pub fn set_file_mtime(p: &Path, mtime: FileTime) -> io::Result<()> {
+    set_times(p, None, Some(mtime), false)
+}
+
+pub fn set_file_atime(p: &Path, atime: FileTime) -> io::Result<()> {
+    set_times(p, Some(atime), None, false)
+}
+
+pub fn set_file_handle_times(
+    f: &File,
+    atime: Option<FileTime>,
+    mtime: Option<FileTime>,
+) -> io::Result<()> {
+    // Attempt to use the `futimens` syscall, but if it's not supported by the
+    // current kernel then fall back to an older syscall.
+    if let Some(func) = futimens() {
+        let times = [super::to_timespec(&atime), super::to_timespec(&mtime)];
+        let rc = unsafe { func(f.as_raw_fd(), times.as_ptr()) };
+        if rc == 0 {
+            return Ok(());
+        } else {
+            return Err(io::Error::last_os_error());
+        }
+    }
+
+    super::utimes::set_file_handle_times(f, atime, mtime)
+}
+
+pub fn set_symlink_file_times(p: &Path, atime: FileTime, mtime: FileTime) -> io::Result<()> {
+    set_times(p, Some(atime), Some(mtime), true)
+}
+
+fn set_times(
+    p: &Path,
+    atime: Option<FileTime>,
+    mtime: Option<FileTime>,
+    symlink: bool,
+) -> io::Result<()> {
+    // Attempt to use the `utimensat` syscall, but if it's not supported by the
+    // current kernel then fall back to an older syscall.
+    if let Some(func) = utimensat() {
+        let flags = if symlink {
+            libc::AT_SYMLINK_NOFOLLOW
+        } else {
+            0
+        };
+
+        let p = CString::new(p.as_os_str().as_bytes())?;
+        let times = [super::to_timespec(&atime), super::to_timespec(&mtime)];
+        let rc = unsafe { func(libc::AT_FDCWD, p.as_ptr(), times.as_ptr(), flags) };
+        if rc == 0 {
+            return Ok(());
+        } else {
+            return Err(io::Error::last_os_error());
+        }
+    }
+
+    super::utimes::set_times(p, atime, mtime, symlink)
+}
+
+fn utimensat() -> Option<unsafe extern "C" fn(c_int, *const c_char, *const timespec, c_int) -> c_int>
+{
+    static ADDR: AtomicUsize = AtomicUsize::new(0);
+    unsafe {
+        fetch(&ADDR, CStr::from_bytes_with_nul_unchecked(b"utimensat\0"))
+            .map(|sym| mem::transmute(sym))
+    }
+}
+
+fn futimens() -> Option<unsafe extern "C" fn(c_int, *const timespec) -> c_int> {
+    static ADDR: AtomicUsize = AtomicUsize::new(0);
+    unsafe {
+        fetch(&ADDR, CStr::from_bytes_with_nul_unchecked(b"futimens\0"))
+            .map(|sym| mem::transmute(sym))
+    }
+}
+
+fn fetch(cache: &AtomicUsize, name: &CStr) -> Option<usize> {
+    match cache.load(SeqCst) {
+        0 => {}
+        1 => return None,
+        n => return Some(n),
+    }
+    let sym = unsafe { libc::dlsym(libc::RTLD_DEFAULT, name.as_ptr() as *const _) };
+    let (val, ret) = if sym.is_null() {
+        (1, None)
+    } else {
+        (sym as usize, Some(sym as usize))
+    };
+    cache.store(val, SeqCst);
+    return ret;
+}
diff --git a/vendor/filetime/src/unix/mod.rs b/vendor/filetime/src/unix/mod.rs
new file mode 100644
index 000000000..66f9fc219
--- /dev/null
+++ b/vendor/filetime/src/unix/mod.rs
@@ -0,0 +1,114 @@
+use crate::FileTime;
+use libc::{time_t, timespec};
+use std::fs;
+use std::os::unix::prelude::*;
+
+cfg_if::cfg_if! {
+    if #[cfg(target_os = "linux")] {
+        mod utimes;
+        mod linux;
+        pub use self::linux::*;
+    } else if #[cfg(target_os = "android")] {
+        mod android;
+        pub use self::android::*;
+    } else if #[cfg(target_os = "macos")] {
+        mod utimes;
+        mod macos;
+        pub use self::macos::*;
+    } else if #[cfg(any(target_os = "solaris",
+                        target_os = "illumos",
+                        target_os = "emscripten",
+                        target_os = "freebsd",
+                        target_os = "netbsd",
+                        target_os = "openbsd",
+                        target_os = "haiku"))] {
+        mod utimensat;
+        pub use self::utimensat::*;
+    } else {
+        mod utimes;
+        pub use self::utimes::*;
+    }
+}
+
+#[allow(dead_code)]
+fn to_timespec(ft: &Option<FileTime>) -> timespec {
+    cfg_if::cfg_if! {
+        if #[cfg(any(target_os = "macos",
+                     target_os = "illumos",
+                     target_os = "freebsd"))] {
+            // https://github.com/apple/darwin-xnu/blob/a449c6a3b8014d9406c2ddbdc81795da24aa7443/bsd/sys/stat.h#L541
+            // https://github.com/illumos/illumos-gate/blob/master/usr/src/boot/sys/sys/stat.h#L312
+            // https://svnweb.freebsd.org/base/head/sys/sys/stat.h?view=markup#l359
+            const UTIME_OMIT: i64 = -2;
+        } else if #[cfg(target_os = "openbsd")] {
+            // https://github.com/openbsd/src/blob/master/sys/sys/stat.h#L189
+            const UTIME_OMIT: i64 = -1;
+        } else if #[cfg(target_os = "haiku")] {
+            // https://git.haiku-os.org/haiku/tree/headers/posix/sys/stat.h?#n106
+            const UTIME_OMIT: i64 = 1000000001;
+        } else {
+            // http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/sys/stat.h?annotate=1.68.30.1
+            // https://github.com/emscripten-core/emscripten/blob/master/system/include/libc/sys/stat.h#L71
+            const UTIME_OMIT: i64 = 1_073_741_822;
+        }
+    }
+
+    if let &Some(ft) = ft {
+        timespec {
+            tv_sec: ft.seconds() as time_t,
+            tv_nsec: ft.nanoseconds() as _,
+        }
+    } else {
+        timespec {
+            tv_sec: 0,
+            tv_nsec: UTIME_OMIT as _,
+        }
+    }
+}
+
+pub fn from_last_modification_time(meta: &fs::Metadata) -> FileTime {
+    FileTime {
+        seconds: meta.mtime(),
+        nanos: meta.mtime_nsec() as u32,
+    }
+}
+
+pub fn from_last_access_time(meta: &fs::Metadata) -> FileTime {
+    FileTime {
+        seconds: meta.atime(),
+        nanos: meta.atime_nsec() as u32,
+    }
+}
+
+pub fn from_creation_time(meta: &fs::Metadata) -> Option<FileTime> {
+    macro_rules! birthtim {
+        ($(($e:expr, $i:ident)),*) => {
+            #[cfg(any($(target_os = $e),*))]
+            fn imp(meta: &fs::Metadata) -> Option<FileTime> {
+                $(
+                    #[cfg(target_os = $e)]
+                    use std::os::$i::fs::MetadataExt;
+                )*
+                Some(FileTime {
+                    seconds: meta.st_birthtime(),
+                    nanos: meta.st_birthtime_nsec() as u32,
+                })
+            }
+
+            #[cfg(all($(not(target_os = $e)),*))]
+            fn imp(_meta: &fs::Metadata) -> Option<FileTime> {
+                None
+            }
+        }
+    }
+
+    birthtim! {
+        ("bitrig", bitrig),
+        ("freebsd", freebsd),
+        ("ios", ios),
+        ("macos", macos),
+        ("openbsd", openbsd)
+    }
+
+    imp(meta)
+}
diff --git a/vendor/filetime/src/unix/utimensat.rs b/vendor/filetime/src/unix/utimensat.rs
new file mode 100644
index 000000000..42a1ada2c
--- /dev/null
+++ b/vendor/filetime/src/unix/utimensat.rs
@@ -0,0 +1,58 @@
+use crate::FileTime;
+use std::ffi::CString;
+use std::fs::File;
+use std::io;
+use std::os::unix::prelude::*;
+use std::path::Path;
+
+pub fn set_file_times(p: &Path, atime: FileTime, mtime: FileTime) -> io::Result<()> {
+    set_times(p, Some(atime), Some(mtime), false)
+}
+
+pub fn set_file_mtime(p: &Path, mtime: FileTime) -> io::Result<()> {
+    set_times(p, None, Some(mtime), false)
+}
+
+pub fn set_file_atime(p: &Path, atime: FileTime) -> io::Result<()> {
+    set_times(p, Some(atime), None, false)
+}
+
+pub fn set_file_handle_times(
+    f: &File,
+    atime: Option<FileTime>,
+    mtime: Option<FileTime>,
+) -> io::Result<()> {
+    let times = [super::to_timespec(&atime), super::to_timespec(&mtime)];
+    let rc = unsafe { libc::futimens(f.as_raw_fd(), times.as_ptr()) };
+    if rc == 0 {
+        Ok(())
+    } else {
+        Err(io::Error::last_os_error())
+    }
+}
+
+pub fn set_symlink_file_times(p: &Path, atime: FileTime, mtime: FileTime) -> io::Result<()> {
+    set_times(p, Some(atime), Some(mtime), false)
+}
+
+fn set_times(
+    p: &Path,
+    atime: Option<FileTime>,
+    mtime: Option<FileTime>,
+    symlink: bool,
+) -> io::Result<()> {
+    let flags = if symlink {
+        libc::AT_SYMLINK_NOFOLLOW
+    } else {
+        0
+    };
+
+    let p = CString::new(p.as_os_str().as_bytes())?;
+    let times = [super::to_timespec(&atime), super::to_timespec(&mtime)];
+    let rc = unsafe { libc::utimensat(libc::AT_FDCWD, p.as_ptr(), times.as_ptr(), flags) };
+    if rc == 0 {
+        Ok(())
+    } else {
+        Err(io::Error::last_os_error())
+    }
+}
diff --git a/vendor/filetime/src/unix/utimes.rs b/vendor/filetime/src/unix/utimes.rs
new file mode 100644
index 000000000..34bb882a2
--- /dev/null
+++ b/vendor/filetime/src/unix/utimes.rs
@@ -0,0 +1,130 @@
+use crate::FileTime;
+use std::ffi::CString;
+use std::fs;
+use std::io;
+use std::os::unix::prelude::*;
+use std::path::Path;
+
+#[allow(dead_code)]
+pub fn set_file_times(p: &Path, atime: FileTime, mtime: FileTime) -> io::Result<()> {
+    set_times(p, Some(atime), Some(mtime), false)
+}
+
+#[allow(dead_code)]
+pub fn set_file_mtime(p: &Path, mtime: FileTime) -> io::Result<()> {
+    set_times(p, None, Some(mtime), false)
+}
+
+#[allow(dead_code)]
+pub fn set_file_atime(p: &Path, atime: FileTime) -> io::Result<()> {
+    set_times(p, Some(atime), None, false)
+}
+
+#[cfg(not(target_env = "uclibc"))]
+#[allow(dead_code)]
+pub fn set_file_handle_times(
+    f: &fs::File,
+    atime: Option<FileTime>,
+    mtime: Option<FileTime>,
+) -> io::Result<()> {
+    let (atime, mtime) = match get_times(atime, mtime, || f.metadata())? {
+        Some(pair) => pair,
+        None => return Ok(()),
+    };
+    let times = [to_timeval(&atime), to_timeval(&mtime)];
+    let rc = unsafe { libc::futimes(f.as_raw_fd(), times.as_ptr()) };
+    return if rc == 0 {
+        Ok(())
+    } else {
+        Err(io::Error::last_os_error())
+    };
+}
+
+#[cfg(target_env = "uclibc")]
+#[allow(dead_code)]
+pub fn set_file_handle_times(
+    f: &fs::File,
+    atime: Option<FileTime>,
+    mtime: Option<FileTime>,
+) -> io::Result<()> {
+    let (atime, mtime) = match get_times(atime, mtime, || f.metadata())? {
+        Some(pair) => pair,
+        None => return Ok(()),
+    };
+    let times = [to_timespec(&atime), to_timespec(&mtime)];
+    let rc = unsafe { libc::futimens(f.as_raw_fd(), times.as_ptr()) };
+    return if rc == 0 {
+        Ok(())
+    } else {
+        Err(io::Error::last_os_error())
+    };
+}
+
+fn get_times(
+    atime: Option<FileTime>,
+    mtime: Option<FileTime>,
+    current: impl FnOnce() -> io::Result<fs::Metadata>,
+) -> io::Result<Option<(FileTime, FileTime)>> {
+    let pair = match (atime, mtime) {
+        (Some(a), Some(b)) => (a, b),
+        (None, None) => return Ok(None),
+        (Some(a), None) => {
+            let meta = current()?;
+            (a, FileTime::from_last_modification_time(&meta))
+        }
+        (None, Some(b)) => {
+            let meta = current()?;
+            (FileTime::from_last_access_time(&meta), b)
+        }
+    };
+    Ok(Some(pair))
+}
+
+#[allow(dead_code)]
+pub fn set_symlink_file_times(p: &Path, atime: FileTime, mtime: FileTime) -> io::Result<()> {
+    set_times(p, Some(atime), Some(mtime), true)
+}
+
+pub fn set_times(
+    p: &Path,
+    atime: Option<FileTime>,
+    mtime: Option<FileTime>,
+    symlink: bool,
+) -> io::Result<()> {
+    let (atime, mtime) = match get_times(atime, mtime, || p.metadata())? {
+        Some(pair) => pair,
+        None => return Ok(()),
+    };
+    let p = CString::new(p.as_os_str().as_bytes())?;
+    let times = [to_timeval(&atime), to_timeval(&mtime)];
+    let rc = unsafe {
+        if symlink {
+            libc::lutimes(p.as_ptr(), times.as_ptr())
+        } else {
+            libc::utimes(p.as_ptr(), times.as_ptr())
+        }
+    };
+    return if rc == 0 {
+        Ok(())
+    } else {
+        Err(io::Error::last_os_error())
+    };
+}
+
+fn to_timeval(ft: &FileTime) -> libc::timeval {
+    libc::timeval {
+        tv_sec: ft.seconds() as libc::time_t,
+        tv_usec: (ft.nanoseconds() / 1000) as libc::suseconds_t,
+    }
+}
+
+#[cfg(target_env = "uclibc")]
+fn to_timespec(ft: &FileTime) -> libc::timespec {
+    libc::timespec {
+        tv_sec: ft.seconds() as libc::time_t,
+        #[cfg(all(target_arch = "x86_64", target_pointer_width = "32"))]
+        tv_nsec: (ft.nanoseconds()) as i64,
+        #[cfg(not(all(target_arch = "x86_64", target_pointer_width = "32")))]
+        tv_nsec: (ft.nanoseconds()) as libc::c_long,
+    }
+}
diff --git a/vendor/filetime/src/wasm.rs b/vendor/filetime/src/wasm.rs
new file mode 100644
index 000000000..4a7a5bbb7
--- /dev/null
+++ b/vendor/filetime/src/wasm.rs
@@ -0,0 +1,40 @@
+use crate::FileTime;
+use std::fs::{self, File};
+use std::io;
+use std::path::Path;
+
+pub fn set_file_times(_p: &Path, _atime: FileTime, _mtime: FileTime) -> io::Result<()> {
+    Err(io::Error::new(io::ErrorKind::Other, "Wasm not implemented"))
+}
+
+pub fn set_symlink_file_times(_p: &Path, _atime: FileTime, _mtime: FileTime) -> io::Result<()> {
+    Err(io::Error::new(io::ErrorKind::Other, "Wasm not implemented"))
+}
+
+pub fn set_file_mtime(_p: &Path, _mtime: FileTime) -> io::Result<()> {
+    Err(io::Error::new(io::ErrorKind::Other, "Wasm not implemented"))
+}
+
+pub fn set_file_atime(_p: &Path, _atime: FileTime) -> io::Result<()> {
+    Err(io::Error::new(io::ErrorKind::Other, "Wasm not implemented"))
+}
+
+pub fn from_last_modification_time(_meta: &fs::Metadata) -> FileTime {
+    unimplemented!()
+}
+
+pub fn from_last_access_time(_meta: &fs::Metadata) -> FileTime {
+    unimplemented!()
+}
+
+pub fn from_creation_time(_meta: &fs::Metadata) -> Option<FileTime> {
+    unimplemented!()
+}
+
+pub fn set_file_handle_times(
+    _f: &File,
+    _atime: Option<FileTime>,
+    _mtime: Option<FileTime>,
+) -> io::Result<()> {
+    Err(io::Error::new(io::ErrorKind::Other, "Wasm not implemented"))
+}
diff --git a/vendor/filetime/src/windows.rs b/vendor/filetime/src/windows.rs
new file mode 100644
index 000000000..932e1017f
--- /dev/null
+++ b/vendor/filetime/src/windows.rs
@@ -0,0 +1,99 @@
+use crate::FileTime;
+use std::fs::{self, File, OpenOptions};
+use std::io;
+use std::os::windows::prelude::*;
+use std::path::Path;
+use std::ptr;
+use windows_sys::Win32::Foundation::{FILETIME, HANDLE};
+use windows_sys::Win32::Storage::FileSystem::*;
+
+pub fn set_file_times(p: &Path, atime: FileTime, mtime: FileTime) -> io::Result<()> {
+    let f = OpenOptions::new()
+        .write(true)
+        .custom_flags(FILE_FLAG_BACKUP_SEMANTICS)
+        .open(p)?;
+    set_file_handle_times(&f, Some(atime), Some(mtime))
+}
+
+pub fn set_file_mtime(p: &Path, mtime: FileTime) -> io::Result<()> {
+    let f = OpenOptions::new()
+        .write(true)
+        .custom_flags(FILE_FLAG_BACKUP_SEMANTICS)
+        .open(p)?;
+    set_file_handle_times(&f, None, Some(mtime))
+}
+
+pub fn set_file_atime(p: &Path, atime: FileTime) -> io::Result<()> {
+    let f = OpenOptions::new()
+        .write(true)
+        .custom_flags(FILE_FLAG_BACKUP_SEMANTICS)
+        .open(p)?;
+    set_file_handle_times(&f, Some(atime), None)
+}
+
+pub fn set_file_handle_times(
+    f: &File,
+    atime: Option<FileTime>,
+    mtime: Option<FileTime>,
+) -> io::Result<()> {
+    let atime = atime.map(to_filetime);
+    let mtime = mtime.map(to_filetime);
+    return unsafe {
+        let ret = SetFileTime(
+            f.as_raw_handle() as HANDLE,
+            ptr::null(),
+            atime
+                .as_ref()
+                .map(|p| p as *const FILETIME)
+                .unwrap_or(ptr::null()),
+            mtime
+                .as_ref()
+                .map(|p| p as *const FILETIME)
+                .unwrap_or(ptr::null()),
+        );
+        if ret != 0 {
+            Ok(())
+        } else {
+            Err(io::Error::last_os_error())
+        }
+    };
+
+    fn to_filetime(ft: FileTime) -> FILETIME {
+        let intervals = ft.seconds() * (1_000_000_000 / 100) + ((ft.nanoseconds() as i64) / 100);
+        FILETIME {
+            dwLowDateTime: intervals as u32,
+            dwHighDateTime: (intervals >> 32) as u32,
+        }
+    }
+}
+
+pub fn set_symlink_file_times(p: &Path, atime: FileTime, mtime: FileTime) -> io::Result<()> {
+    use std::os::windows::fs::OpenOptionsExt;
+
+    let f = OpenOptions::new()
+        .write(true)
+        .custom_flags(FILE_FLAG_OPEN_REPARSE_POINT | FILE_FLAG_BACKUP_SEMANTICS)
+        .open(p)?;
+    set_file_handle_times(&f, Some(atime), Some(mtime))
+}
+
+pub fn from_last_modification_time(meta: &fs::Metadata) -> FileTime {
+    from_intervals(meta.last_write_time())
+}
+
+pub fn from_last_access_time(meta: &fs::Metadata) -> FileTime {
+    from_intervals(meta.last_access_time())
+}
+
+pub fn from_creation_time(meta: &fs::Metadata) -> Option<FileTime> {
+    Some(from_intervals(meta.creation_time()))
+}
+
+fn from_intervals(ticks: u64) -> FileTime {
+    // Windows write times are in 100ns intervals, so do a little math to
+    // get it into the right representation.
+    FileTime {
+        seconds: (ticks / (1_000_000_000 / 100)) as i64,
+        nanos: ((ticks % (1_000_000_000 / 100)) * 100) as u32,
+    }
+}