4 files changed, 8 insertions, 0 deletions
diff --git a/src/libstd/io/buffered.rs b/src/libstd/io/buffered.rs
index 4f355502eb8..e25006a7b39 100644
--- a/src/libstd/io/buffered.rs
+++ b/src/libstd/io/buffered.rs
@@ -7,6 +7,8 @@
 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
+//
+// ignore-lexer-test FIXME #15883
 
 //! Buffering wrappers for I/O traits
 
diff --git a/src/libstd/io/fs.rs b/src/libstd/io/fs.rs
index d49c56b4704..afd88ee0ed9 100644
--- a/src/libstd/io/fs.rs
+++ b/src/libstd/io/fs.rs
@@ -7,6 +7,8 @@
 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
+//
+// ignore-lexer-test FIXME #15679
 
 /*! Synchronous File I/O
 
diff --git a/src/libstd/io/mem.rs b/src/libstd/io/mem.rs
index 1c0251c8369..b93b84b7d63 100644
--- a/src/libstd/io/mem.rs
+++ b/src/libstd/io/mem.rs
@@ -7,6 +7,8 @@
 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
+//
+// ignore-lexer-test FIXME #15679
 
 //! Readers and Writers for in-memory buffers
 
diff --git a/src/libstd/io/mod.rs b/src/libstd/io/mod.rs
index c0fddcb2ae5..4277b509962 100644
--- a/src/libstd/io/mod.rs
+++ b/src/libstd/io/mod.rs
@@ -7,6 +7,8 @@
 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
+//
+// ignore-lexer-test FIXME #15883
 
 // FIXME: cover these topics:
 //        path, reader, writer, stream, raii (close not needed),