diff --git a/src/lib.rs b/src/lib.rs
index 9e270dba..e17802c4 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -58,6 +58,7 @@
 #![deny(missing_docs)]
 #![deny(missing_debug_implementations)]
 #![no_std]
+#![warn(rust_2018_idioms)]
 // Style.
 #![allow(clippy::collapsible_if)]
 #![allow(clippy::comparison_chain)]
diff --git a/src/read/any.rs b/src/read/any.rs
index 06af4abb..342ad75f 100644
--- a/src/read/any.rs
+++ b/src/read/any.rs
@@ -473,7 +473,7 @@ where
     }
 
     #[inline]
-    fn pdb_info(&self) -> Result<Option<CodeView>> {
+    fn pdb_info(&self) -> Result<Option<CodeView<'_>>> {
         with_inner!(self.inner, FileInternal, |x| x.pdb_info())
     }
 
@@ -492,18 +492,12 @@ where
 
 /// An iterator over the segments of a `File`.
 #[derive(Debug)]
-pub struct SegmentIterator<'data, 'file, R: ReadRef<'data> = &'data [u8]>
-where
-    'data: 'file,
-{
+pub struct SegmentIterator<'data, 'file, R: ReadRef<'data> = &'data [u8]> {
     inner: SegmentIteratorInternal<'data, 'file, R>,
 }
 
 #[derive(Debug)]
-enum SegmentIteratorInternal<'data, 'file, R: ReadRef<'data>>
-where
-    'data: 'file,
-{
+enum SegmentIteratorInternal<'data, 'file, R: ReadRef<'data>> {
     #[cfg(feature = "coff")]
     Coff(coff::CoffSegmentIterator<'data, 'file, R>),
     #[cfg(feature = "coff")]
@@ -538,18 +532,12 @@ impl<'data, 'file, R: ReadRef<'data>> Iterator for SegmentIterator<'data, 'file,
 }
 
 /// A segment of a `File`.
-pub struct Segment<'data, 'file, R: ReadRef<'data> = &'data [u8]>
-where
-    'data: 'file,
-{
+pub struct Segment<'data, 'file, R: ReadRef<'data> = &'data [u8]> {
     inner: SegmentInternal<'data, 'file, R>,
 }
 
 #[derive(Debug)]
-enum SegmentInternal<'data, 'file, R: ReadRef<'data>>
-where
-    'data: 'file,
-{
+enum SegmentInternal<'data, 'file, R: ReadRef<'data>> {
     #[cfg(feature = "coff")]
     Coff(coff::CoffSegment<'data, 'file, R>),
     #[cfg(feature = "coff")]
@@ -635,19 +623,13 @@ impl<'data, 'file, R: ReadRef<'data>> ObjectSegment<'data> for Segment<'data, 'f
 
 /// An iterator of the sections of a `File`.
 #[derive(Debug)]
-pub struct SectionIterator<'data, 'file, R: ReadRef<'data> = &'data [u8]>
-where
-    'data: 'file,
-{
+pub struct SectionIterator<'data, 'file, R: ReadRef<'data> = &'data [u8]> {
     inner: SectionIteratorInternal<'data, 'file, R>,
 }
 
 // we wrap our enums in a struct so that they are kept private.
 #[derive(Debug)]
-enum SectionIteratorInternal<'data, 'file, R: ReadRef<'data>>
-where
-    'data: 'file,
-{
+enum SectionIteratorInternal<'data, 'file, R: ReadRef<'data>> {
     #[cfg(feature = "coff")]
     Coff(coff::CoffSectionIterator<'data, 'file, R>),
     #[cfg(feature = "coff")]
@@ -682,17 +664,11 @@ impl<'data, 'file, R: ReadRef<'data>> Iterator for SectionIterator<'data, 'file,
 }
 
 /// A Section of a File
-pub struct Section<'data, 'file, R: ReadRef<'data> = &'data [u8]>
-where
-    'data: 'file,
-{
+pub struct Section<'data, 'file, R: ReadRef<'data> = &'data [u8]> {
     inner: SectionInternal<'data, 'file, R>,
 }
 
-enum SectionInternal<'data, 'file, R: ReadRef<'data>>
-where
-    'data: 'file,
-{
+enum SectionInternal<'data, 'file, R: ReadRef<'data>> {
     #[cfg(feature = "coff")]
     Coff(coff::CoffSection<'data, 'file, R>),
     #[cfg(feature = "coff")]
@@ -819,18 +795,12 @@ impl<'data, 'file, R: ReadRef<'data>> ObjectSection<'data> for Section<'data, 'f
 
 /// An iterator of the COMDAT section groups of a `File`.
 #[derive(Debug)]
-pub struct ComdatIterator<'data, 'file, R: ReadRef<'data> = &'data [u8]>
-where
-    'data: 'file,
-{
+pub struct ComdatIterator<'data, 'file, R: ReadRef<'data> = &'data [u8]> {
     inner: ComdatIteratorInternal<'data, 'file, R>,
 }
 
 #[derive(Debug)]
-enum ComdatIteratorInternal<'data, 'file, R: ReadRef<'data>>
-where
-    'data: 'file,
-{
+enum ComdatIteratorInternal<'data, 'file, R: ReadRef<'data>> {
     #[cfg(feature = "coff")]
     Coff(coff::CoffComdatIterator<'data, 'file, R>),
     #[cfg(feature = "coff")]
@@ -865,17 +835,11 @@ impl<'data, 'file, R: ReadRef<'data>> Iterator for ComdatIterator<'data, 'file,
 }
 
 /// A COMDAT section group of a `File`.
-pub struct Comdat<'data, 'file, R: ReadRef<'data> = &'data [u8]>
-where
-    'data: 'file,
-{
+pub struct Comdat<'data, 'file, R: ReadRef<'data> = &'data [u8]> {
     inner: ComdatInternal<'data, 'file, R>,
 }
 
-enum ComdatInternal<'data, 'file, R: ReadRef<'data>>
-where
-    'data: 'file,
-{
+enum ComdatInternal<'data, 'file, R: ReadRef<'data>> {
     #[cfg(feature = "coff")]
     Coff(coff::CoffComdat<'data, 'file, R>),
     #[cfg(feature = "coff")]
@@ -945,18 +909,12 @@ impl<'data, 'file, R: ReadRef<'data>> ObjectComdat<'data> for Comdat<'data, 'fil
 
 /// An iterator over COMDAT section entries.
 #[derive(Debug)]
-pub struct ComdatSectionIterator<'data, 'file, R: ReadRef<'data> = &'data [u8]>
-where
-    'data: 'file,
-{
+pub struct ComdatSectionIterator<'data, 'file, R: ReadRef<'data> = &'data [u8]> {
     inner: ComdatSectionIteratorInternal<'data, 'file, R>,
 }
 
 #[derive(Debug)]
-enum ComdatSectionIteratorInternal<'data, 'file, R: ReadRef<'data>>
-where
-    'data: 'file,
-{
+enum ComdatSectionIteratorInternal<'data, 'file, R: ReadRef<'data>> {
     #[cfg(feature = "coff")]
     Coff(coff::CoffComdatSectionIterator<'data, 'file, R>),
     #[cfg(feature = "coff")]
@@ -993,7 +951,6 @@ impl<'data, 'file, R: ReadRef<'data>> Iterator for ComdatSectionIterator<'data,
 #[derive(Debug)]
 pub struct SymbolTable<'data, 'file, R = &'data [u8]>
 where
-    'data: 'file,
     R: ReadRef<'data>,
 {
     inner: SymbolTableInternal<'data, 'file, R>,
@@ -1002,7 +959,6 @@ where
 #[derive(Debug)]
 enum SymbolTableInternal<'data, 'file, R>
 where
-    'data: 'file,
     R: ReadRef<'data>,
 {
     #[cfg(feature = "coff")]
@@ -1079,7 +1035,6 @@ impl<'data, 'file, R: ReadRef<'data>> ObjectSymbolTable<'data> for SymbolTable<'
 #[derive(Debug)]
 pub struct SymbolIterator<'data, 'file, R = &'data [u8]>
 where
-    'data: 'file,
     R: ReadRef<'data>,
 {
     inner: SymbolIteratorInternal<'data, 'file, R>,
@@ -1088,7 +1043,6 @@ where
 #[derive(Debug)]
 enum SymbolIteratorInternal<'data, 'file, R>
 where
-    'data: 'file,
     R: ReadRef<'data>,
 {
     #[cfg(feature = "coff")]
@@ -1159,7 +1113,6 @@ impl<'data, 'file, R: ReadRef<'data>> Iterator for SymbolIterator<'data, 'file,
 /// A symbol table entry.
 pub struct Symbol<'data, 'file, R = &'data [u8]>
 where
-    'data: 'file,
     R: ReadRef<'data>,
 {
     inner: SymbolInternal<'data, 'file, R>,
@@ -1167,7 +1120,6 @@ where
 
 enum SymbolInternal<'data, 'file, R>
 where
-    'data: 'file,
     R: ReadRef<'data>,
 {
     #[cfg(feature = "coff")]
@@ -1297,7 +1249,6 @@ impl<'data, 'file, R: ReadRef<'data>> ObjectSymbol<'data> for Symbol<'data, 'fil
 #[derive(Debug)]
 pub struct DynamicRelocationIterator<'data, 'file, R = &'data [u8]>
 where
-    'data: 'file,
     R: ReadRef<'data>,
 {
     inner: DynamicRelocationIteratorInternal<'data, 'file, R>,
@@ -1306,7 +1257,6 @@ where
 #[derive(Debug)]
 enum DynamicRelocationIteratorInternal<'data, 'file, R>
 where
-    'data: 'file,
     R: ReadRef<'data>,
 {
     #[cfg(feature = "elf")]
@@ -1334,18 +1284,12 @@ impl<'data, 'file, R: ReadRef<'data>> Iterator for DynamicRelocationIterator<'da
 
 /// An iterator over section relocation entries.
 #[derive(Debug)]
-pub struct SectionRelocationIterator<'data, 'file, R: ReadRef<'data> = &'data [u8]>
-where
-    'data: 'file,
-{
+pub struct SectionRelocationIterator<'data, 'file, R: ReadRef<'data> = &'data [u8]> {
     inner: SectionRelocationIteratorInternal<'data, 'file, R>,
 }
 
 #[derive(Debug)]
-enum SectionRelocationIteratorInternal<'data, 'file, R: ReadRef<'data>>
-where
-    'data: 'file,
-{
+enum SectionRelocationIteratorInternal<'data, 'file, R: ReadRef<'data>> {
     #[cfg(feature = "coff")]
     Coff(coff::CoffRelocationIterator<'data, 'file, R>),
     #[cfg(feature = "coff")]
diff --git a/src/read/coff/symbol.rs b/src/read/coff/symbol.rs
index 1c26d0a9..e95468d7 100644
--- a/src/read/coff/symbol.rs
+++ b/src/read/coff/symbol.rs
@@ -528,7 +528,7 @@ pub trait ImageSymbol: Debug + Pod {
     /// Return the symbol address.
     ///
     /// This takes into account the image base and the section address.
-    fn address(&self, image_base: u64, sections: &SectionTable) -> Result<u64> {
+    fn address(&self, image_base: u64, sections: &SectionTable<'_>) -> Result<u64> {
         let section_number = self.section_number() as usize;
         let section = sections.section(section_number)?;
         let virtual_address = u64::from(section.virtual_address.get(LE));
diff --git a/src/read/elf/comdat.rs b/src/read/elf/comdat.rs
index 7cee85bb..1a2f2f44 100644
--- a/src/read/elf/comdat.rs
+++ b/src/read/elf/comdat.rs
@@ -18,7 +18,6 @@ pub type ElfComdatIterator64<'data, 'file, Endian = Endianness, R = &'data [u8]>
 #[derive(Debug)]
 pub struct ElfComdatIterator<'data, 'file, Elf, R = &'data [u8]>
 where
-    'data: 'file,
     Elf: FileHeader,
     R: ReadRef<'data>,
 {
@@ -140,7 +139,6 @@ pub type ElfComdatSectionIterator64<'data, 'file, Endian = Endianness, R = &'dat
 #[derive(Debug)]
 pub struct ElfComdatSectionIterator<'data, 'file, Elf, R = &'data [u8]>
 where
-    'data: 'file,
     Elf: FileHeader,
     R: ReadRef<'data>,
 {
diff --git a/src/read/elf/hash.rs b/src/read/elf/hash.rs
index aa1039ac..aadbb920 100644
--- a/src/read/elf/hash.rs
+++ b/src/read/elf/hash.rs
@@ -45,7 +45,7 @@ impl<'data, Elf: FileHeader> HashTable<'data, Elf> {
         endian: Elf::Endian,
         name: &[u8],
         hash: u32,
-        version: Option<&Version>,
+        version: Option<&Version<'_>>,
         symbols: &SymbolTable<'data, Elf, R>,
         versions: &VersionTable<'data, Elf>,
     ) -> Option<(usize, &'data Elf::Sym)> {
@@ -160,7 +160,7 @@ impl<'data, Elf: FileHeader> GnuHashTable<'data, Elf> {
         endian: Elf::Endian,
         name: &[u8],
         hash: u32,
-        version: Option<&Version>,
+        version: Option<&Version<'_>>,
         symbols: &SymbolTable<'data, Elf, R>,
         versions: &VersionTable<'data, Elf>,
     ) -> Option<(usize, &'data Elf::Sym)> {
diff --git a/src/read/elf/section.rs b/src/read/elf/section.rs
index 3b103dd3..df08f9e3 100644
--- a/src/read/elf/section.rs
+++ b/src/read/elf/section.rs
@@ -363,7 +363,6 @@ pub type ElfSection64<'data, 'file, Endian = Endianness, R = &'data [u8]> =
 #[derive(Debug)]
 pub struct ElfSection<'data, 'file, Elf, R = &'data [u8]>
 where
-    'data: 'file,
     Elf: FileHeader,
     R: ReadRef<'data>,
 {
diff --git a/src/read/elf/segment.rs b/src/read/elf/segment.rs
index 445893c8..3972731e 100644
--- a/src/read/elf/segment.rs
+++ b/src/read/elf/segment.rs
@@ -57,7 +57,6 @@ pub type ElfSegment64<'data, 'file, Endian = Endianness, R = &'data [u8]> =
 #[derive(Debug)]
 pub struct ElfSegment<'data, 'file, Elf, R = &'data [u8]>
 where
-    'data: 'file,
     Elf: FileHeader,
     R: ReadRef<'data>,
 {
diff --git a/src/read/elf/symbol.rs b/src/read/elf/symbol.rs
index d90f18d5..ac109570 100644
--- a/src/read/elf/symbol.rs
+++ b/src/read/elf/symbol.rs
@@ -208,7 +208,6 @@ pub type ElfSymbolTable64<'data, 'file, Endian = Endianness, R = &'data [u8]> =
 #[derive(Debug, Clone, Copy)]
 pub struct ElfSymbolTable<'data, 'file, Elf, R = &'data [u8]>
 where
-    'data: 'file,
     Elf: FileHeader,
     R: ReadRef<'data>,
 {
@@ -256,7 +255,6 @@ pub type ElfSymbolIterator64<'data, 'file, Endian = Endianness, R = &'data [u8]>
 /// An iterator over the symbols of an `ElfFile`.
 pub struct ElfSymbolIterator<'data, 'file, Elf, R = &'data [u8]>
 where
-    'data: 'file,
     Elf: FileHeader,
     R: ReadRef<'data>,
 {
@@ -302,7 +300,6 @@ pub type ElfSymbol64<'data, 'file, Endian = Endianness, R = &'data [u8]> =
 #[derive(Debug, Clone, Copy)]
 pub struct ElfSymbol<'data, 'file, Elf, R = &'data [u8]>
 where
-    'data: 'file,
     Elf: FileHeader,
     R: ReadRef<'data>,
 {
diff --git a/src/read/elf/version.rs b/src/read/elf/version.rs
index 2811f26c..cc87bbef 100644
--- a/src/read/elf/version.rs
+++ b/src/read/elf/version.rs
@@ -188,7 +188,7 @@ impl<'data, Elf: FileHeader> VersionTable<'data, Elf> {
     /// Returns false for any error.
     ///
     /// Note: this function hasn't been fully tested and is likely to be incomplete.
-    pub fn matches(&self, endian: Elf::Endian, index: usize, need: Option<&Version>) -> bool {
+    pub fn matches(&self, endian: Elf::Endian, index: usize, need: Option<&Version<'_>>) -> bool {
         let version_index = self.version_index(endian, index);
         let def = match self.version(version_index) {
             Ok(def) => def,
diff --git a/src/read/macho/file.rs b/src/read/macho/file.rs
index ab8c0575..bc6fe258 100644
--- a/src/read/macho/file.rs
+++ b/src/read/macho/file.rs
@@ -531,7 +531,6 @@ pub type MachOComdatSectionIterator64<'data, 'file, Endian = Endianness, R = &'d
 #[derive(Debug)]
 pub struct MachOComdatSectionIterator<'data, 'file, Mach, R = &'data [u8]>
 where
-    'data: 'file,
     Mach: MachHeader,
     R: ReadRef<'data>,
 {
diff --git a/src/read/macho/relocation.rs b/src/read/macho/relocation.rs
index 5dd7df89..35143f64 100644
--- a/src/read/macho/relocation.rs
+++ b/src/read/macho/relocation.rs
@@ -19,7 +19,6 @@ pub type MachORelocationIterator64<'data, 'file, Endian = Endianness, R = &'data
 /// An iterator over the relocations in a `MachOSection`.
 pub struct MachORelocationIterator<'data, 'file, Mach, R = &'data [u8]>
 where
-    'data: 'file,
     Mach: MachHeader,
     R: ReadRef<'data>,
 {
diff --git a/src/read/macho/section.rs b/src/read/macho/section.rs
index d69174e5..f43a5b83 100644
--- a/src/read/macho/section.rs
+++ b/src/read/macho/section.rs
@@ -21,7 +21,6 @@ pub type MachOSectionIterator64<'data, 'file, Endian = Endianness, R = &'data [u
 /// An iterator over the sections of a `MachOFile`.
 pub struct MachOSectionIterator<'data, 'file, Mach, R = &'data [u8]>
 where
-    'data: 'file,
     Mach: MachHeader,
     R: ReadRef<'data>,
 {
@@ -66,7 +65,6 @@ pub type MachOSection64<'data, 'file, Endian = Endianness, R = &'data [u8]> =
 #[derive(Debug)]
 pub struct MachOSection<'data, 'file, Mach, R = &'data [u8]>
 where
-    'data: 'file,
     Mach: MachHeader,
     R: ReadRef<'data>,
 {
diff --git a/src/read/macho/segment.rs b/src/read/macho/segment.rs
index c7eaa6ff..01037e1d 100644
--- a/src/read/macho/segment.rs
+++ b/src/read/macho/segment.rs
@@ -19,7 +19,6 @@ pub type MachOSegmentIterator64<'data, 'file, Endian = Endianness, R = &'data [u
 #[derive(Debug)]
 pub struct MachOSegmentIterator<'data, 'file, Mach, R = &'data [u8]>
 where
-    'data: 'file,
     Mach: MachHeader,
     R: ReadRef<'data>,
 {
@@ -53,7 +52,6 @@ pub type MachOSegment64<'data, 'file, Endian = Endianness, R = &'data [u8]> =
 #[derive(Debug)]
 pub struct MachOSegment<'data, 'file, Mach, R = &'data [u8]>
 where
-    'data: 'file,
     Mach: MachHeader,
     R: ReadRef<'data>,
 {
@@ -160,7 +158,7 @@ pub trait Segment: Debug + Pod {
     type Endian: endian::Endian;
     type Section: Section<Endian = Self::Endian>;
 
-    fn from_command(command: LoadCommandData<Self::Endian>) -> Result<Option<(&Self, &[u8])>>;
+    fn from_command(command: LoadCommandData<'_, Self::Endian>) -> Result<Option<(&Self, &[u8])>>;
 
     fn cmd(&self, endian: Self::Endian) -> u32;
     fn cmdsize(&self, endian: Self::Endian) -> u32;
@@ -219,7 +217,7 @@ impl<Endian: endian::Endian> Segment for macho::SegmentCommand32<Endian> {
     type Endian = Endian;
     type Section = macho::Section32<Self::Endian>;
 
-    fn from_command(command: LoadCommandData<Self::Endian>) -> Result<Option<(&Self, &[u8])>> {
+    fn from_command(command: LoadCommandData<'_, Self::Endian>) -> Result<Option<(&Self, &[u8])>> {
         command.segment_32()
     }
 
@@ -263,7 +261,7 @@ impl<Endian: endian::Endian> Segment for macho::SegmentCommand64<Endian> {
     type Endian = Endian;
     type Section = macho::Section64<Self::Endian>;
 
-    fn from_command(command: LoadCommandData<Self::Endian>) -> Result<Option<(&Self, &[u8])>> {
+    fn from_command(command: LoadCommandData<'_, Self::Endian>) -> Result<Option<(&Self, &[u8])>> {
         command.segment_64()
     }
 
diff --git a/src/read/mod.rs b/src/read/mod.rs
index 8a37dcd3..0a450359 100644
--- a/src/read/mod.rs
+++ b/src/read/mod.rs
@@ -70,7 +70,7 @@ pub struct Error(&'static str);
 
 impl fmt::Display for Error {
     #[inline]
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         f.write_str(self.0)
     }
 }
diff --git a/src/read/pe/file.rs b/src/read/pe/file.rs
index 8dd85131..0f8ce9f2 100644
--- a/src/read/pe/file.rs
+++ b/src/read/pe/file.rs
@@ -80,7 +80,7 @@ where
     }
 
     /// Returns information about the rich header of this file (if any).
-    pub fn rich_header_info(&self) -> Option<RichHeaderInfo> {
+    pub fn rich_header_info(&self) -> Option<RichHeaderInfo<'_>> {
         RichHeaderInfo::parse(self.data, self.dos_header.nt_headers_offset().into())
     }
 
@@ -298,7 +298,7 @@ where
         Ok(exports)
     }
 
-    fn pdb_info(&self) -> Result<Option<CodeView>> {
+    fn pdb_info(&self) -> Result<Option<CodeView<'_>>> {
         let data_dir = match self.data_directory(pe::IMAGE_DIRECTORY_ENTRY_DEBUG) {
             Some(data_dir) => data_dir,
             None => return Ok(None),
diff --git a/src/read/pe/resource.rs b/src/read/pe/resource.rs
index e667f0d9..646eaefa 100644
--- a/src/read/pe/resource.rs
+++ b/src/read/pe/resource.rs
@@ -143,7 +143,7 @@ pub struct ResourceName {
 
 impl ResourceName {
     /// Converts to a `String`.
-    pub fn to_string_lossy(&self, directory: ResourceDirectory) -> Result<String> {
+    pub fn to_string_lossy(&self, directory: ResourceDirectory<'_>) -> Result<String> {
         let d = self.data(directory)?.iter().map(|c| c.get(LE));
 
         Ok(char::decode_utf16(d)
diff --git a/src/read/pe/section.rs b/src/read/pe/section.rs
index 439d42da..2880e401 100644
--- a/src/read/pe/section.rs
+++ b/src/read/pe/section.rs
@@ -143,7 +143,6 @@ pub type PeSectionIterator64<'data, 'file, R = &'data [u8]> =
 #[derive(Debug)]
 pub struct PeSectionIterator<'data, 'file, Pe, R = &'data [u8]>
 where
-    'data: 'file,
     Pe: ImageNtHeaders,
     R: ReadRef<'data>,
 {
@@ -178,7 +177,6 @@ pub type PeSection64<'data, 'file, R = &'data [u8]> =
 #[derive(Debug)]
 pub struct PeSection<'data, 'file, Pe, R = &'data [u8]>
 where
-    'data: 'file,
     Pe: ImageNtHeaders,
     R: ReadRef<'data>,
 {
diff --git a/src/read/traits.rs b/src/read/traits.rs
index a2bcc656..d35b0b0c 100644
--- a/src/read/traits.rs
+++ b/src/read/traits.rs
@@ -210,7 +210,7 @@ pub trait Object<'data: 'file, 'file>: read::private::Sealed {
 
     /// The filename and GUID from the PE CodeView section
     #[inline]
-    fn pdb_info(&self) -> Result<Option<CodeView>> {
+    fn pdb_info(&self) -> Result<Option<CodeView<'_>>> {
         Ok(None)
     }
 
diff --git a/src/read/wasm.rs b/src/read/wasm.rs
index 9eade77f..16d39328 100644
--- a/src/read/wasm.rs
+++ b/src/read/wasm.rs
@@ -744,10 +744,7 @@ impl<'data, 'file, R> ObjectComdat<'data> for WasmComdat<'data, 'file, R> {
 
 /// An iterator over the sections in a COMDAT section group of a `WasmFile`.
 #[derive(Debug)]
-pub struct WasmComdatSectionIterator<'data, 'file, R = &'data [u8]>
-where
-    'data: 'file,
-{
+pub struct WasmComdatSectionIterator<'data, 'file, R = &'data [u8]> {
     #[allow(unused)]
     file: &'file WasmFile<'data, R>,
 }
diff --git a/src/read/xcoff/comdat.rs b/src/read/xcoff/comdat.rs
index eeed2f54..2b23d1db 100644
--- a/src/read/xcoff/comdat.rs
+++ b/src/read/xcoff/comdat.rs
@@ -109,7 +109,6 @@ pub type XcoffComdatSectionIterator64<'data, 'file, R = &'data [u8]> =
 #[derive(Debug)]
 pub struct XcoffComdatSectionIterator<'data, 'file, Xcoff, R = &'data [u8]>
 where
-    'data: 'file,
     Xcoff: FileHeader,
     R: ReadRef<'data>,
 {
diff --git a/src/read/xcoff/relocation.rs b/src/read/xcoff/relocation.rs
index 8107a2e8..78c6acfc 100644
--- a/src/read/xcoff/relocation.rs
+++ b/src/read/xcoff/relocation.rs
@@ -19,7 +19,6 @@ pub type XcoffRelocationIterator64<'data, 'file, R = &'data [u8]> =
 /// An iterator over the relocations in a `XcoffSection`.
 pub struct XcoffRelocationIterator<'data, 'file, Xcoff, R = &'data [u8]>
 where
-    'data: 'file,
     Xcoff: FileHeader,
     R: ReadRef<'data>,
 {
diff --git a/src/read/xcoff/section.rs b/src/read/xcoff/section.rs
index 0d351e85..77453fcd 100644
--- a/src/read/xcoff/section.rs
+++ b/src/read/xcoff/section.rs
@@ -54,7 +54,6 @@ pub type XcoffSection64<'data, 'file, R = &'data [u8]> =
 #[derive(Debug)]
 pub struct XcoffSection<'data, 'file, Xcoff, R = &'data [u8]>
 where
-    'data: 'file,
     Xcoff: FileHeader,
     R: ReadRef<'data>,
 {
diff --git a/src/read/xcoff/segment.rs b/src/read/xcoff/segment.rs
index 49969438..7eca7236 100644
--- a/src/read/xcoff/segment.rs
+++ b/src/read/xcoff/segment.rs
@@ -19,7 +19,6 @@ pub type XcoffSegmentIterator64<'data, 'file, R = &'data [u8]> =
 #[derive(Debug)]
 pub struct XcoffSegmentIterator<'data, 'file, Xcoff, R = &'data [u8]>
 where
-    'data: 'file,
     Xcoff: FileHeader,
     R: ReadRef<'data>,
 {
@@ -50,7 +49,6 @@ pub type XcoffSegment64<'data, 'file, R = &'data [u8]> =
 #[derive(Debug)]
 pub struct XcoffSegment<'data, 'file, Xcoff, R = &'data [u8]>
 where
-    'data: 'file,
     Xcoff: FileHeader,
     R: ReadRef<'data>,
 {
diff --git a/src/read/xcoff/symbol.rs b/src/read/xcoff/symbol.rs
index 4c17d1df..7ce215fa 100644
--- a/src/read/xcoff/symbol.rs
+++ b/src/read/xcoff/symbol.rs
@@ -145,7 +145,6 @@ pub type XcoffSymbolTable64<'data, 'file, R = &'data [u8]> =
 #[derive(Debug, Clone, Copy)]
 pub struct XcoffSymbolTable<'data, 'file, Xcoff, R = &'data [u8]>
 where
-    'data: 'file,
     Xcoff: FileHeader,
     R: ReadRef<'data>,
 {
@@ -193,7 +192,6 @@ pub type XcoffSymbolIterator64<'data, 'file, R = &'data [u8]> =
 /// An iterator over the symbols of an `XcoffFile`.
 pub struct XcoffSymbolIterator<'data, 'file, Xcoff, R = &'data [u8]>
 where
-    'data: 'file,
     Xcoff: FileHeader,
     R: ReadRef<'data>,
 {
@@ -240,7 +238,6 @@ pub type XcoffSymbol64<'data, 'file, R = &'data [u8]> =
 #[derive(Debug, Clone, Copy)]
 pub struct XcoffSymbol<'data, 'file, Xcoff, R = &'data [u8]>
 where
-    'data: 'file,
     Xcoff: FileHeader,
     R: ReadRef<'data>,
 {
diff --git a/src/write/mod.rs b/src/write/mod.rs
index f89ec19c..da1a7de6 100644
--- a/src/write/mod.rs
+++ b/src/write/mod.rs
@@ -46,7 +46,7 @@ pub struct Error(String);
 
 impl fmt::Display for Error {
     #[inline]
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         f.write_str(&self.0)
     }
 }