diff --git a/.cargo_vcs_info.json b/.cargo_vcs_info.json
index 620b2af..1354331 100644
--- a/.cargo_vcs_info.json
+++ b/.cargo_vcs_info.json
@@ -1,5 +1,6 @@
 {
   "git": {
-    "sha1": "b28da881695e3c66e1782f0c2c330d4e162eb7c2"
-  }
-}
+    "sha1": "bf41b9645fe39b8865da2f25edc286eb42d49ec8"
+  },
+  "path_in_vcs": "async-stream"
+}
\ No newline at end of file
diff --git a/Android.bp b/Android.bp
index 18934f1..89089ff 100644
--- a/Android.bp
+++ b/Android.bp
@@ -18,16 +18,75 @@
     ],
 }
 
+rust_defaults {
+    name: "async-stream_test_defaults",
+    crate_name: "async_stream",
+    cargo_env_compat: true,
+    cargo_pkg_version: "0.3.4",
+    test_suites: ["general-tests"],
+    auto_gen_config: true,
+    edition: "2018",
+    rustlibs: [
+        "libasync_stream",
+        "libfutures_core",
+        "libfutures_util",
+        "libpin_project_lite",
+        "libtokio",
+        "libtokio_test",
+    ],
+    proc_macros: [
+        "libasync_stream_impl",
+        "librustversion",
+    ],
+}
+
+rust_test {
+    name: "async-stream_test_tests_for_await",
+    defaults: ["async-stream_test_defaults"],
+    host_supported: true,
+    srcs: ["tests/for_await.rs"],
+    test_options: {
+        unit_test: true,
+    },
+}
+
+rust_test {
+    name: "async-stream_test_tests_spans_preserved",
+    defaults: ["async-stream_test_defaults"],
+    host_supported: true,
+    srcs: ["tests/spans_preserved.rs"],
+    test_options: {
+        unit_test: true,
+    },
+}
+
+rust_test {
+    name: "async-stream_test_tests_try_stream",
+    defaults: ["async-stream_test_defaults"],
+    host_supported: true,
+    srcs: ["tests/try_stream.rs"],
+    test_options: {
+        unit_test: true,
+    },
+}
+
 rust_library {
     name: "libasync_stream",
     host_supported: true,
     crate_name: "async_stream",
     cargo_env_compat: true,
-    cargo_pkg_version: "0.3.2",
+    cargo_pkg_version: "0.3.4",
     srcs: ["src/lib.rs"],
     edition: "2018",
     rustlibs: [
         "libfutures_core",
+        "libpin_project_lite",
     ],
     proc_macros: ["libasync_stream_impl"],
+    apex_available: [
+        "//apex_available:platform",
+        "//apex_available:anyapex",
+    ],
+    product_available: true,
+    vendor_available: true,
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index bd7f60f..d75deb9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,12 @@
+# 0.3.4
+
+* Improve support for `#[track_caller]` (#72)
+* Reduce unsafe code (#77)
+
+# 0.3.3
+
+* Fix a bug where `yield` and `?` cannot be used on the same line (#66)
+
 # 0.3.2
 
 * Expand `yield` in internal macro calls (#57)
diff --git a/Cargo.lock b/Cargo.lock
index 1cdf89d..963f9da 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -14,11 +14,13 @@
 
 [[package]]
 name = "async-stream"
-version = "0.3.2"
+version = "0.3.4"
 dependencies = [
  "async-stream-impl",
  "futures-core",
  "futures-util",
+ "pin-project-lite",
+ "rustversion",
  "tokio",
  "tokio-test",
  "trybuild",
@@ -26,9 +28,9 @@
 
 [[package]]
 name = "async-stream-impl"
-version = "0.3.2"
+version = "0.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "648ed8c8d2ce5409ccd57453d9d1b214b342a0d69376a6feda1fd6cae3299308"
+checksum = "e4655ae1a7b0cdf149156f780c5bf3f1352bc53cbd9e0a361a7ef7b22947e965"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -37,21 +39,30 @@
 
 [[package]]
 name = "autocfg"
-version = "1.0.1"
+version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cdb031dd78e28731d87d56cc8ffef4a8f36ca26c38fe2de700543e627f8a464a"
+checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
+
+[[package]]
+name = "basic-toml"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2e819b667739967cd44d308b8c7b71305d8bb0729ac44a248aa08f33d01950b4"
+dependencies = [
+ "serde",
+]
 
 [[package]]
 name = "bitflags"
-version = "1.2.1"
+version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cf1de2fe8c75bc145a2f577add951f8134889b4795d47466a54a5c846d691693"
+checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
 [[package]]
 name = "bytes"
-version = "1.0.1"
+version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b700ce4376041dcd0a327fd0097c41095743c4c8af8887265942faf1100bd040"
+checksum = "89b2fd2a0dcf38d7971e2194b6b6eebab45ae01067456a7fd93d5547a61b70be"
 
 [[package]]
 name = "cfg-if"
@@ -61,18 +72,16 @@
 
 [[package]]
 name = "futures-core"
-version = "0.3.15"
+version = "0.3.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0402f765d8a89a26043b889b26ce3c4679d268fa6bb22cd7c6aad98340e179d1"
+checksum = "ec90ff4d0fe1f57d600049061dc6bb68ed03c7d2fbd697274c41805dcb3f8608"
 
 [[package]]
 name = "futures-macro"
-version = "0.3.15"
+version = "0.3.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a4c40298486cdf52cc00cd6d6987892ba502c7656a16a4192a9992b1ccedd121"
+checksum = "95a73af87da33b5acf53acfebdc339fe592ecf5357ac7c0a7734ab9d8c876a70"
 dependencies = [
- "autocfg",
- "proc-macro-hack",
  "proc-macro2",
  "quote",
  "syn",
@@ -80,129 +89,93 @@
 
 [[package]]
 name = "futures-task"
-version = "0.3.15"
+version = "0.3.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8a16bef9fc1a4dddb5bee51c989e3fbba26569cbb0e31f5b303c184e3dd33dae"
+checksum = "dcf79a1bf610b10f42aea489289c5a2c478a786509693b80cd39c44ccd936366"
 
 [[package]]
 name = "futures-util"
-version = "0.3.15"
+version = "0.3.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "feb5c238d27e2bf94ffdfd27b2c29e3df4a68c4193bb6427384259e2bf191967"
+checksum = "9c1d6de3acfef38d2be4b1f543f553131788603495be83da675e180c8d6b7bd1"
 dependencies = [
- "autocfg",
  "futures-core",
  "futures-macro",
  "futures-task",
  "pin-project-lite",
  "pin-utils",
- "proc-macro-hack",
- "proc-macro-nested",
  "slab",
 ]
 
 [[package]]
 name = "glob"
-version = "0.3.0"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9b919933a397b79c37e33b77bb2aa3dc8eb6e165ad809e58ff75bc7db2e34574"
+checksum = "d2fabcfbdc87f4758337ca535fb41a6d701b65693ce38287d856d1674551ec9b"
 
 [[package]]
 name = "hermit-abi"
-version = "0.1.18"
+version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "322f4de77956e22ed0e5032c359a0f1273f1f7f0d79bfa3b8ffbc730d7fbcc5c"
+checksum = "ee512640fe35acbfb4bb779db6f0d80704c2cacfa2e39b601ef3e3f47d1ae4c7"
 dependencies = [
  "libc",
 ]
 
 [[package]]
-name = "instant"
-version = "0.1.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "61124eeebbd69b8190558df225adf7e4caafce0d743919e5d6b19652314ec5ec"
-dependencies = [
- "cfg-if",
-]
-
-[[package]]
 name = "itoa"
-version = "0.4.7"
+version = "1.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dd25036021b0de88a0aff6b850051563c6516d0bf53f8638938edbb9de732736"
-
-[[package]]
-name = "lazy_static"
-version = "1.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
+checksum = "fad582f4b9e86b6caa621cabeb0963332d92eea04729ab12892c2533951e6440"
 
 [[package]]
 name = "libc"
-version = "0.2.94"
+version = "0.2.139"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "18794a8ad5b29321f790b55d93dfba91e125cb1a9edbd4f8e3150acc771c1a5e"
+checksum = "201de327520df007757c1f0adce6e827fe8562fbc28bfd9c15571c66ca1f5f79"
 
 [[package]]
 name = "lock_api"
-version = "0.4.4"
+version = "0.4.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0382880606dff6d15c9476c416d18690b72742aa7b605bb6dd6ec9030fbf07eb"
+checksum = "435011366fe56583b16cf956f9df0095b405b82d76425bc8981c0e22e60ec4df"
 dependencies = [
+ "autocfg",
  "scopeguard",
 ]
 
 [[package]]
 name = "log"
-version = "0.4.14"
+version = "0.4.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "51b9bbe6c47d51fc3e1a9b945965946b4c44142ab8792c50835a980d362c2710"
+checksum = "abb12e687cfb44aa40f41fc3978ef76448f9b6038cad6aef4259d3c095a2382e"
 dependencies = [
  "cfg-if",
 ]
 
 [[package]]
 name = "memchr"
-version = "2.4.0"
+version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b16bd47d9e329435e309c58469fe0791c2d0d1ba96ec0954152a5ae2b04387dc"
+checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"
 
 [[package]]
 name = "mio"
-version = "0.7.11"
+version = "0.8.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cf80d3e903b34e0bd7282b218398aec54e082c840d9baf8339e0080a0c542956"
+checksum = "5b9d9a46eff5b4ff64b45a9e316a6d1e0bc719ef429cbec4dc630684212bfdf9"
 dependencies = [
  "libc",
  "log",
- "miow",
- "ntapi",
- "winapi",
-]
-
-[[package]]
-name = "miow"
-version = "0.3.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b9f1c5b025cda876f66ef43a113f91ebc9f4ccef34843000e0adf6ebbab84e21"
-dependencies = [
- "winapi",
-]
-
-[[package]]
-name = "ntapi"
-version = "0.3.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3f6bb902e437b6d86e03cce10a7e2af662292c5dfef23b65899ea3ac9354ad44"
-dependencies = [
- "winapi",
+ "wasi",
+ "windows-sys 0.45.0",
 ]
 
 [[package]]
 name = "num_cpus"
-version = "1.13.0"
+version = "1.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "05499f3756671c15885fee9034446956fff3f243d6077b91e5767df161f766b3"
+checksum = "0fac9e2da13b5eb447a6ce3d392f23a29d8694bff781bf03a16cd9ac8697593b"
 dependencies = [
  "hermit-abi",
  "libc",
@@ -210,40 +183,38 @@
 
 [[package]]
 name = "once_cell"
-version = "1.7.2"
+version = "1.17.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "af8b08b04175473088b46763e51ee54da5f9a164bc162f615b91bc179dbf15a3"
+checksum = "b7e5500299e16ebb147ae15a00a942af264cf3688f47923b8fc2cd5858f23ad3"
 
 [[package]]
 name = "parking_lot"
-version = "0.11.1"
+version = "0.12.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6d7744ac029df22dca6284efe4e898991d28e3085c706c972bcd7da4a27a15eb"
+checksum = "3742b2c103b9f06bc9fff0a37ff4912935851bee6d36f3c02bcc755bcfec228f"
 dependencies = [
- "instant",
  "lock_api",
  "parking_lot_core",
 ]
 
 [[package]]
 name = "parking_lot_core"
-version = "0.8.3"
+version = "0.9.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fa7a782938e745763fe6907fc6ba86946d72f49fe7e21de074e08128a99fb018"
+checksum = "9069cbb9f99e3a5083476ccb29ceb1de18b9118cafa53e90c9551235de2b9521"
 dependencies = [
  "cfg-if",
- "instant",
  "libc",
  "redox_syscall",
  "smallvec",
- "winapi",
+ "windows-sys 0.45.0",
 ]
 
 [[package]]
 name = "pin-project-lite"
-version = "0.2.6"
+version = "0.2.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dc0e1f259c92177c30a4c9d177246edd0a3568b25756a977d0632cf8fa37e905"
+checksum = "e0a7ae3ac2f1173085d398531c705756c94a4c56843785df85a60c1a0afac116"
 
 [[package]]
 name = "pin-utils"
@@ -252,49 +223,43 @@
 checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
 
 [[package]]
-name = "proc-macro-hack"
-version = "0.5.19"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dbf0c48bc1d91375ae5c3cd81e3722dff1abcf81a30960240640d223f59fe0e5"
-
-[[package]]
-name = "proc-macro-nested"
-version = "0.1.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bc881b2c22681370c6a780e47af9840ef841837bc98118431d4e1868bd0c1086"
-
-[[package]]
 name = "proc-macro2"
-version = "1.0.27"
+version = "1.0.51"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f0d8caf72986c1a598726adc988bb5984792ef84f5ee5aa50209145ee8077038"
+checksum = "5d727cae5b39d21da60fa540906919ad737832fe0b1c165da3a34d6548c849d6"
 dependencies = [
- "unicode-xid",
+ "unicode-ident",
 ]
 
 [[package]]
 name = "quote"
-version = "1.0.9"
+version = "1.0.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c3d0b9745dc2debf507c8422de05d7226cc1f0644216dfdfead988f9b1ab32a7"
+checksum = "8856d8364d252a14d474036ea1358d63c9e6965c8e5c1885c18f73d70bff9c7b"
 dependencies = [
  "proc-macro2",
 ]
 
 [[package]]
 name = "redox_syscall"
-version = "0.2.8"
+version = "0.2.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "742739e41cd49414de871ea5e549afb7e2a3ac77b589bcbebe8c82fab37147fc"
+checksum = "fb5a58c1855b4b6819d59012155603f0b22ad30cad752600aadfcb695265519a"
 dependencies = [
  "bitflags",
 ]
 
 [[package]]
-name = "ryu"
-version = "1.0.5"
+name = "rustversion"
+version = "1.0.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "71d301d4193d031abdd79ff7e3dd721168a9572ef3fe51a1517aba235bd8f86e"
+checksum = "5583e89e108996506031660fe09baa5011b9dd0341b89029313006d1fb508d70"
+
+[[package]]
+name = "ryu"
+version = "1.0.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7b4b9743ed687d4b4bcedf9ff5eaa7398495ae14e61cba0a295704edbc7decde"
 
 [[package]]
 name = "scopeguard"
@@ -304,18 +269,15 @@
 
 [[package]]
 name = "serde"
-version = "1.0.126"
+version = "1.0.152"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ec7505abeacaec74ae4778d9d9328fe5a5d04253220a85c4ee022239fc996d03"
-dependencies = [
- "serde_derive",
-]
+checksum = "bb7d1f0d3021d347a83e556fc4683dea2ea09d87bccdf88ff5c12545d89d5efb"
 
 [[package]]
 name = "serde_derive"
-version = "1.0.126"
+version = "1.0.152"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "963a7dbc9895aeac7ac90e74f34a5d5261828f79df35cbed41e10189d3804d43"
+checksum = "af487d118eecd09402d70a5d72551860e788df87b464af30e5ea6a38c75c541e"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -324,9 +286,9 @@
 
 [[package]]
 name = "serde_json"
-version = "1.0.64"
+version = "1.0.93"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "799e97dc9fdae36a5c8b8f2cae9ce2ee9fdce2058c57a93e6099d919fd982f79"
+checksum = "cad406b69c91885b5107daf2c29572f6c8cdb3c66826821e286c533490c0bc76"
 dependencies = [
  "itoa",
  "ryu",
@@ -335,50 +297,63 @@
 
 [[package]]
 name = "signal-hook-registry"
-version = "1.3.0"
+version = "1.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "16f1d0fef1604ba8f7a073c7e701f213e056707210e9020af4528e0101ce11a6"
+checksum = "d8229b473baa5980ac72ef434c4415e70c4b5e71b423043adb4ba059f89c99a1"
 dependencies = [
  "libc",
 ]
 
 [[package]]
 name = "slab"
-version = "0.4.3"
+version = "0.4.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f173ac3d1a7e3b28003f40de0b5ce7fe2710f9b9dc3fc38664cebee46b3b6527"
+checksum = "4614a76b2a8be0058caa9dbbaf66d988527d86d003c11a94fbd335d7661edcef"
+dependencies = [
+ "autocfg",
+]
 
 [[package]]
 name = "smallvec"
-version = "1.6.1"
+version = "1.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fe0f37c9e8f3c5a4a66ad655a93c74daac4ad00c441533bf5c6e7990bb42604e"
+checksum = "a507befe795404456341dfab10cef66ead4c041f62b8b11bbb92bffe5d0953e0"
+
+[[package]]
+name = "socket2"
+version = "0.4.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "02e2d2db9033d13a1567121ddd7a095ee144db4e1ca1b1bda3419bc0da294ebd"
+dependencies = [
+ "libc",
+ "winapi",
+]
 
 [[package]]
 name = "syn"
-version = "1.0.72"
+version = "1.0.107"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a1e8cdbefb79a9a5a65e0db8b47b723ee907b7c7f8496c76a1770b5c310bab82"
+checksum = "1f4064b5b16e03ae50984a5a8ed5d4f8803e6bc1fd170a3cda91a1be4b18e3f5"
 dependencies = [
  "proc-macro2",
  "quote",
- "unicode-xid",
+ "unicode-ident",
 ]
 
 [[package]]
 name = "termcolor"
-version = "1.1.2"
+version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2dfed899f0eb03f32ee8c6a0aabdb8a7949659e3466561fc0adf54e26d88c5f4"
+checksum = "be55cf8942feac5c765c2c993422806843c9a9a45d4d5c407ad6dd2ea95eb9b6"
 dependencies = [
  "winapi-util",
 ]
 
 [[package]]
 name = "tokio"
-version = "1.6.0"
+version = "1.25.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bd3076b5c8cc18138b8f8814895c11eb4de37114a5d127bafdc5e55798ceef37"
+checksum = "c8e00990ebabbe4c14c08aca901caed183ecd5c09562a12c824bb53d3c3fd3af"
 dependencies = [
  "autocfg",
  "bytes",
@@ -386,19 +361,19 @@
  "memchr",
  "mio",
  "num_cpus",
- "once_cell",
  "parking_lot",
  "pin-project-lite",
  "signal-hook-registry",
+ "socket2",
  "tokio-macros",
- "winapi",
+ "windows-sys 0.42.0",
 ]
 
 [[package]]
 name = "tokio-macros"
-version = "1.2.0"
+version = "1.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c49e3df43841dafb86046472506755d8501c5615673955f6aa17181125d13c37"
+checksum = "d266c00fde287f55d3f1c3e96c500c362a2b8c695076ec180f27918820bc6df8"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -407,9 +382,9 @@
 
 [[package]]
 name = "tokio-stream"
-version = "0.1.6"
+version = "0.1.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f8864d706fdb3cc0843a49647ac892720dac98a6eeb818b77190592cf4994066"
+checksum = "d660770404473ccd7bc9f8b28494a811bc18542b915c0855c51e8f419d5223ce"
 dependencies = [
  "futures-core",
  "pin-project-lite",
@@ -430,33 +405,31 @@
 ]
 
 [[package]]
-name = "toml"
-version = "0.5.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a31142970826733df8241ef35dc040ef98c679ab14d7c3e54d827099b3acecaa"
-dependencies = [
- "serde",
-]
-
-[[package]]
 name = "trybuild"
-version = "1.0.42"
+version = "1.0.77"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1768998d9a3b179411618e377dbb134c58a88cda284b0aa71c42c40660127d46"
+checksum = "a44da5a6f2164c8e14d3bbc0657d69c5966af9f5f6930d4f600b1f5c4a673413"
 dependencies = [
+ "basic-toml",
  "glob",
- "lazy_static",
+ "once_cell",
  "serde",
+ "serde_derive",
  "serde_json",
  "termcolor",
- "toml",
 ]
 
 [[package]]
-name = "unicode-xid"
-version = "0.2.2"
+name = "unicode-ident"
+version = "1.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8ccb82d61f80a663efe1f787a51b16b5a51e3314d6ac365b08639f52387b33f3"
+checksum = "84a22b9f218b40614adcb3f4ff08b703773ad44fa9423e4e0d346d5db86e4ebc"
+
+[[package]]
+name = "wasi"
+version = "0.11.0+wasi-snapshot-preview1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
 
 [[package]]
 name = "winapi"
@@ -488,3 +461,84 @@
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
+
+[[package]]
+name = "windows-sys"
+version = "0.42.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5a3e1820f08b8513f676f7ab6c1f99ff312fb97b553d30ff4dd86f9f15728aa7"
+dependencies = [
+ "windows_aarch64_gnullvm",
+ "windows_aarch64_msvc",
+ "windows_i686_gnu",
+ "windows_i686_msvc",
+ "windows_x86_64_gnu",
+ "windows_x86_64_gnullvm",
+ "windows_x86_64_msvc",
+]
+
+[[package]]
+name = "windows-sys"
+version = "0.45.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "75283be5efb2831d37ea142365f009c02ec203cd29a3ebecbc093d52315b66d0"
+dependencies = [
+ "windows-targets",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.42.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e2522491fbfcd58cc84d47aeb2958948c4b8982e9a2d8a2a35bbaed431390e7"
+dependencies = [
+ "windows_aarch64_gnullvm",
+ "windows_aarch64_msvc",
+ "windows_i686_gnu",
+ "windows_i686_msvc",
+ "windows_x86_64_gnu",
+ "windows_x86_64_gnullvm",
+ "windows_x86_64_msvc",
+]
+
+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.42.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8c9864e83243fdec7fc9c5444389dcbbfd258f745e7853198f365e3c4968a608"
+
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.42.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4c8b1b673ffc16c47a9ff48570a9d85e25d265735c503681332589af6253c6c7"
+
+[[package]]
+name = "windows_i686_gnu"
+version = "0.42.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "de3887528ad530ba7bdbb1faa8275ec7a1155a45ffa57c37993960277145d640"
+
+[[package]]
+name = "windows_i686_msvc"
+version = "0.42.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bf4d1122317eddd6ff351aa852118a2418ad4214e6613a50e0191f7004372605"
+
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.42.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c1040f221285e17ebccbc2591ffdc2d44ee1f9186324dd3e84e99ac68d699c45"
+
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.42.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "628bfdf232daa22b0d64fdb62b09fcc36bb01f05a3939e20ab73aaf9470d0463"
+
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.42.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "447660ad36a13288b1db4d4248e857b510e8c3a225c822ba4fb748c0aafecffd"
diff --git a/Cargo.toml b/Cargo.toml
index a2d9ba7..86aaf75 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,32 +3,38 @@
 # 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
+# to registry (e.g., crates.io) dependencies.
 #
-# If you believe there's an error in this file please file an
-# issue against the rust-lang/cargo repository. If you're
-# editing this file be aware that the upstream Cargo.toml
-# will likely look very different (and much more reasonable)
+# 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"
+rust-version = "1.45"
 name = "async-stream"
-version = "0.3.2"
+version = "0.3.4"
 authors = ["Carl Lerche <me@carllerche.com>"]
 description = "Asynchronous streams using async & await notation"
-homepage = "https://github.com/tokio-rs/async-stream"
-documentation = "https://docs.rs/async-stream"
 readme = "README.md"
 license = "MIT"
 repository = "https://github.com/tokio-rs/async-stream"
+
 [dependencies.async-stream-impl]
-version = "=0.3.2"
+version = "=0.3.4"
 
 [dependencies.futures-core]
 version = "0.3"
+
+[dependencies.pin-project-lite]
+version = "0.2"
+
 [dev-dependencies.futures-util]
 version = "0.3"
 
+[dev-dependencies.rustversion]
+version = "1"
+
 [dev-dependencies.tokio]
 version = "1"
 features = ["full"]
diff --git a/Cargo.toml.orig b/Cargo.toml.orig
index 06ccf45..1407a68 100644
--- a/Cargo.toml.orig
+++ b/Cargo.toml.orig
@@ -1,26 +1,24 @@
 [package]
 name = "async-stream"
 # When releasing to crates.io:
-# - Update version number
-#   - README.md
 # - Update CHANGELOG.md
 # - Create git tag
-version = "0.3.2"
+version = "0.3.4"
 edition = "2018"
+rust-version = "1.45"
 license = "MIT"
 authors = ["Carl Lerche <me@carllerche.com>"]
 description = "Asynchronous streams using async & await notation"
-documentation = "https://docs.rs/async-stream"
-homepage = "https://github.com/tokio-rs/async-stream"
 repository = "https://github.com/tokio-rs/async-stream"
-readme = "README.md"
 
 [dependencies]
-async-stream-impl = { version = "=0.3.2", path = "../async-stream-impl" }
+async-stream-impl = { version = "=0.3.4", path = "../async-stream-impl" }
 futures-core = "0.3"
+pin-project-lite = "0.2"
 
 [dev-dependencies]
 futures-util = "0.3"
+rustversion = "1"
 tokio = { version = "1", features = ["full"] }
 tokio-test = "0.4"
 trybuild = "1"
diff --git a/METADATA b/METADATA
index 0ad5312..610a85d 100644
--- a/METADATA
+++ b/METADATA
@@ -1,3 +1,7 @@
+# This project was upgraded with external_updater.
+# Usage: tools/external_updater/updater.sh update rust/crates/async-stream
+# For more info, check https://cs.android.com/android/platform/superproject/+/master:tools/external_updater/README.md
+
 name: "async-stream"
 description: "Asynchronous streams using async & await notation"
 third_party {
@@ -7,13 +11,13 @@
   }
   url {
     type: ARCHIVE
-    value: "https://static.crates.io/crates/async-stream/async-stream-0.3.2.crate"
+    value: "https://static.crates.io/crates/async-stream/async-stream-0.3.4.crate"
   }
-  version: "0.3.2"
+  version: "0.3.4"
   license_type: NOTICE
   last_upgrade_date {
-    year: 2021
-    month: 6
-    day: 21
+    year: 2023
+    month: 3
+    day: 2
   }
 }
diff --git a/README.md b/README.md
index 77c7739..97f1f8e 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@
 trait. The `Item` associated type is the type of the values yielded from the
 stream. The `try_stream!` also returns an anonymous type implementing the
 [`Stream`] trait, but the `Item` associated type is `Result<T, Error>`. The
-`try_stream!` macro supports using `?` notiation as part of the
+`try_stream!` macro supports using `?` notation as part of the
 implementation.
 
 ## Usage
@@ -138,7 +138,7 @@
 ## Implementation
 
 The `stream!` and `try_stream!` macros are implemented using proc macros.
-The macro searches the syntax tree for instances of `sender.send($expr)` and
+The macro searches the syntax tree for instances of `yield $expr` and
 transforms them into `sender.send($expr).await`.
 
 The stream uses a lightweight sender to send values from the stream
@@ -151,6 +151,7 @@
 [`Stream`]: https://docs.rs/futures-core/*/futures_core/stream/trait.Stream.html
 
 ## Supported Rust Versions
+
 `async-stream` is built against the latest stable release. The minimum supported version is 1.45 due to [function-like procedural macros in expression, pattern, and statement positions](https://blog.rust-lang.org/2020/07/16/Rust-1.45.0.html#stabilizing-function-like-procedural-macros-in-expressions-patterns-and-statements).
 
 ## License
diff --git a/TEST_MAPPING b/TEST_MAPPING
index dfc3524..0d50c8f 100644
--- a/TEST_MAPPING
+++ b/TEST_MAPPING
@@ -7,5 +7,21 @@
     {
       "path": "external/rust/crates/tokio-test"
     }
+  ],
+  "presubmit": [
+    {
+      "name": "async-stream_test_tests_for_await"
+    },
+    {
+      "name": "async-stream_test_tests_try_stream"
+    }
+  ],
+  "presubmit-rust": [
+    {
+      "name": "async-stream_test_tests_for_await"
+    },
+    {
+      "name": "async-stream_test_tests_try_stream"
+    }
   ]
 }
diff --git a/cargo2android.json b/cargo2android.json
index bf78496..0c66159 100644
--- a/cargo2android.json
+++ b/cargo2android.json
@@ -1,4 +1,11 @@
 {
   "device": true,
-  "run": true
-}
\ No newline at end of file
+  "run": true,
+  "tests": true,
+  "dependency-blocklist": [
+    "trybuild"
+  ],
+  "test-blocklist": [
+    "tests/stream.rs"
+  ]
+}
diff --git a/src/async_stream.rs b/src/async_stream.rs
index f60c87e..ff408ab 100644
--- a/src/async_stream.rs
+++ b/src/async_stream.rs
@@ -1,16 +1,20 @@
 use crate::yielder::Receiver;
 
 use futures_core::{FusedStream, Stream};
+use pin_project_lite::pin_project;
 use std::future::Future;
 use std::pin::Pin;
 use std::task::{Context, Poll};
 
-#[doc(hidden)]
-#[derive(Debug)]
-pub struct AsyncStream<T, U> {
-    rx: Receiver<T>,
-    done: bool,
-    generator: U,
+pin_project! {
+    #[doc(hidden)]
+    #[derive(Debug)]
+    pub struct AsyncStream<T, U> {
+        rx: Receiver<T>,
+        done: bool,
+        #[pin]
+        generator: U,
+    }
 }
 
 impl<T, U> AsyncStream<T, U> {
@@ -40,30 +44,28 @@
     type Item = T;
 
     fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Option<Self::Item>> {
-        unsafe {
-            let me = Pin::get_unchecked_mut(self);
+        let me = self.project();
 
-            if me.done {
-                return Poll::Ready(None);
-            }
+        if *me.done {
+            return Poll::Ready(None);
+        }
 
-            let mut dst = None;
-            let res = {
-                let _enter = me.rx.enter(&mut dst);
-                Pin::new_unchecked(&mut me.generator).poll(cx)
-            };
+        let mut dst = None;
+        let res = {
+            let _enter = me.rx.enter(&mut dst);
+            me.generator.poll(cx)
+        };
 
-            me.done = res.is_ready();
+        *me.done = res.is_ready();
 
-            if dst.is_some() {
-                return Poll::Ready(dst.take());
-            }
+        if dst.is_some() {
+            return Poll::Ready(dst.take());
+        }
 
-            if me.done {
-                Poll::Ready(None)
-            } else {
-                Poll::Pending
-            }
+        if *me.done {
+            Poll::Ready(None)
+        } else {
+            Poll::Pending
         }
     }
 
diff --git a/src/lib.rs b/src/lib.rs
index d2c78f9..318e404 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -16,7 +16,7 @@
 //! trait. The `Item` associated type is the type of the values yielded from the
 //! stream. The `try_stream!` also returns an anonymous type implementing the
 //! [`Stream`] trait, but the `Item` associated type is `Result<T, Error>`. The
-//! `try_stream!` macro supports using `?` notiation as part of the
+//! `try_stream!` macro supports using `?` notation as part of the
 //! implementation.
 //!
 //! # Usage
@@ -144,7 +144,7 @@
 //! # Implementation
 //!
 //! The `stream!` and `try_stream!` macros are implemented using proc macros.
-//! The macro searches the syntax tree for instances of `sender.send($expr)` and
+//! The macro searches the syntax tree for instances of `yield $expr` and
 //! transforms them into `sender.send($expr).await`.
 //!
 //! The stream uses a lightweight sender to send values from the stream
@@ -158,15 +158,7 @@
 
 mod async_stream;
 mod next;
-#[doc(hidden)]
-pub mod yielder;
-
-// Used by the macro, but not intended to be accessed publicly.
-#[doc(hidden)]
-pub use crate::async_stream::AsyncStream;
-
-#[doc(hidden)]
-pub use async_stream_impl;
+mod yielder;
 
 /// Asynchronous stream
 ///
@@ -198,7 +190,7 @@
 #[macro_export]
 macro_rules! stream {
     ($($tt:tt)*) => {
-        $crate::async_stream_impl::stream_inner!(($crate) $($tt)*)
+        $crate::__private::stream_inner!(($crate) $($tt)*)
     }
 }
 
@@ -234,12 +226,17 @@
 #[macro_export]
 macro_rules! try_stream {
     ($($tt:tt)*) => {
-        $crate::async_stream_impl::try_stream_inner!(($crate) $($tt)*)
+        $crate::__private::try_stream_inner!(($crate) $($tt)*)
     }
 }
 
+// Not public API.
 #[doc(hidden)]
-pub mod reexport {
-    #[doc(hidden)]
+pub mod __private {
+    pub use crate::async_stream::AsyncStream;
     pub use crate::next::next;
+    pub use async_stream_impl::{stream_inner, try_stream_inner};
+    pub mod yielder {
+        pub use crate::yielder::pair;
+    }
 }
diff --git a/src/yielder.rs b/src/yielder.rs
index 1ee523f..597e1c9 100644
--- a/src/yielder.rs
+++ b/src/yielder.rs
@@ -20,7 +20,12 @@
     prev: *mut (),
 }
 
-pub fn pair<T>() -> (Sender<T>, Receiver<T>) {
+// Note: It is considered unsound for anyone other than our macros to call
+// this function. This is a private API intended only for calls from our
+// macros, and users should never call it, but some people tend to
+// misinterpret it as fine to call unless it is marked unsafe.
+#[doc(hidden)]
+pub unsafe fn pair<T>() -> (Sender<T>, Receiver<T>) {
     let tx = Sender { _p: PhantomData };
     let rx = Receiver { _p: PhantomData };
     (tx, rx)
@@ -53,9 +58,9 @@
             return Poll::Ready(());
         }
 
-        STORE.with(|cell| unsafe {
+        STORE.with(|cell| {
             let ptr = cell.get() as *mut Option<T>;
-            let option_ref = ptr.as_mut().expect("invalid usage");
+            let option_ref = unsafe { ptr.as_mut() }.expect("invalid usage");
 
             if option_ref.is_none() {
                 *option_ref = self.value.take();
diff --git a/tests/spans_preserved.rs b/tests/spans_preserved.rs
new file mode 100644
index 0000000..f2663b8
--- /dev/null
+++ b/tests/spans_preserved.rs
@@ -0,0 +1,15 @@
+use async_stream::stream;
+use futures_util::pin_mut;
+use futures_util::stream::StreamExt;
+
+#[tokio::test]
+async fn spans_preserved() {
+    let s = stream! {
+     assert_eq!(line!(), 8);
+    };
+    pin_mut!(s);
+
+    while s.next().await.is_some() {
+        unreachable!();
+    }
+}
diff --git a/tests/stream.rs b/tests/stream.rs
index 77b3813..4e26a3d 100644
--- a/tests/stream.rs
+++ b/tests/stream.rs
@@ -11,7 +11,7 @@
     let s = stream! {};
     pin_mut!(s);
 
-    while let Some(_) = s.next().await {
+    while s.next().await.is_some() {
         unreachable!();
     }
 }
@@ -28,7 +28,7 @@
         };
         pin_mut!(s);
 
-        while let Some(_) = s.next().await {
+        while s.next().await.is_some() {
             unreachable!();
         }
     }
@@ -229,6 +229,7 @@
     };
 }
 
+#[rustversion::attr(not(stable), ignore)]
 #[test]
 fn test() {
     let t = trybuild::TestCases::new();
diff --git a/tests/try_stream.rs b/tests/try_stream.rs
index 063e37a..c404e62 100644
--- a/tests/try_stream.rs
+++ b/tests/try_stream.rs
@@ -66,7 +66,7 @@
     fn test() -> impl Stream<Item = Result<i32, String>> {
         try_stream! {
             let a = Ok::<_,  String>(Ok::<_,  String>(123))??;
-            for _ in (1..10) {
+            for _ in 1..10 {
                 yield a;
             }
         }
@@ -78,3 +78,10 @@
         values
     );
 }
+
+#[allow(unused)]
+fn issue_65() -> impl Stream<Item = Result<u32, ()>> {
+    try_stream! {
+        yield Err(())?;
+    }
+}
diff --git a/tests/ui/yield_bad_expr_in_macro.stderr b/tests/ui/yield_bad_expr_in_macro.stderr
index 71d9075..e70e200 100644
--- a/tests/ui/yield_bad_expr_in_macro.stderr
+++ b/tests/ui/yield_bad_expr_in_macro.stderr
@@ -1,5 +1,5 @@
 error: expected expression
- --> $DIR/yield_bad_expr_in_macro.rs:8:33
+ --> tests/ui/yield_bad_expr_in_macro.rs:8:33
   |
 8 |             _ = work() => yield fn f() {},
   |                                 ^^
diff --git a/tests/ui/yield_in_async.stderr b/tests/ui/yield_in_async.stderr
index 19691eb..4322758 100644
--- a/tests/ui/yield_in_async.stderr
+++ b/tests/ui/yield_in_async.stderr
@@ -1,5 +1,5 @@
 error[E0658]: yield syntax is experimental
- --> $DIR/yield_in_async.rs:6:13
+ --> tests/ui/yield_in_async.rs:6:13
   |
 6 |             yield 123;
   |             ^^^^^^^^^
@@ -7,69 +7,13 @@
   = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
 
 error[E0727]: `async` generators are not yet supported
- --> $DIR/yield_in_async.rs:6:13
+ --> tests/ui/yield_in_async.rs:6:13
   |
 6 |             yield 123;
   |             ^^^^^^^^^
 
-error[E0271]: type mismatch resolving `<[static generator@$DIR/src/lib.rs:201:9: 201:67] as Generator<ResumeTy>>::Yield == ()`
-  --> $DIR/yield_in_async.rs:4:5
-   |
-4  | /     stream! {
-5  | |         let f = async {
-6  | |             yield 123;
-7  | |         };
-8  | |
-9  | |         let v = f.await;
-10 | |     };
-   | |______^ expected `()`, found integer
-   |
-   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
-
-error[E0698]: type inside `async` block must be known in this context
- --> $DIR/yield_in_async.rs:6:19
+error[E0308]: mismatched types
+ --> tests/ui/yield_in_async.rs:6:19
   |
 6 |             yield 123;
-  |                   ^^^ cannot infer type for type `{integer}`
-  |
-note: the type is part of the `async` block because of this `yield`
- --> $DIR/yield_in_async.rs:6:13
-  |
-6 |             yield 123;
-  |             ^^^^^^^^^
-
-error[E0698]: type inside `async` block must be known in this context
- --> $DIR/yield_in_async.rs:5:13
-  |
-5 |         let f = async {
-  |             ^ cannot infer type for type `{integer}`
-  |
-note: the type is part of the `async` block because of this `await`
- --> $DIR/yield_in_async.rs:9:17
-  |
-9 |         let v = f.await;
-  |                 ^^^^^^^
-
-error[E0698]: type inside `async` block must be known in this context
- --> $DIR/yield_in_async.rs:9:17
-  |
-9 |         let v = f.await;
-  |                 ^ cannot infer type for type `{integer}`
-  |
-note: the type is part of the `async` block because of this `await`
- --> $DIR/yield_in_async.rs:9:17
-  |
-9 |         let v = f.await;
-  |                 ^^^^^^^
-
-error[E0698]: type inside `async` block must be known in this context
- --> $DIR/yield_in_async.rs:9:17
-  |
-9 |         let v = f.await;
-  |                 ^^^^^^^ cannot infer type for type `{integer}`
-  |
-note: the type is part of the `async` block because of this `await`
- --> $DIR/yield_in_async.rs:9:17
-  |
-9 |         let v = f.await;
-  |                 ^^^^^^^
+  |                   ^^^ expected `()`, found integer
diff --git a/tests/ui/yield_in_closure.stderr b/tests/ui/yield_in_closure.stderr
index 2506e18..9f917f3 100644
--- a/tests/ui/yield_in_closure.stderr
+++ b/tests/ui/yield_in_closure.stderr
@@ -1,18 +1,26 @@
 error[E0658]: yield syntax is experimental
- --> $DIR/yield_in_closure.rs:7:17
+ --> tests/ui/yield_in_closure.rs:7:17
   |
 7 |                 yield v;
   |                 ^^^^^^^
   |
   = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
 
-error[E0277]: expected a `FnOnce<(&str,)>` closure, found `[generator@$DIR/src/lib.rs:201:9: 201:67]`
- --> $DIR/yield_in_closure.rs:6:14
+error[E0277]: expected a `FnOnce<(&str,)>` closure, found `[generator@$DIR/tests/ui/yield_in_closure.rs:6:23: 6:26]`
+ --> tests/ui/yield_in_closure.rs:6:23
   |
-6 |             .and_then(|v| {
-  |              ^^^^^^^^ expected an `FnOnce<(&str,)>` closure, found `[generator@$DIR/src/lib.rs:201:9: 201:67]`
+6 |               .and_then(|v| {
+  |  ______________--------_^
+  | |              |
+  | |              required by a bound introduced by this call
+7 | |                 yield v;
+8 | |                 Ok(())
+9 | |             });
+  | |_____________^ expected an `FnOnce<(&str,)>` closure, found `[generator@$DIR/tests/ui/yield_in_closure.rs:6:23: 6:26]`
   |
-  = help: the trait `FnOnce<(&str,)>` is not implemented for `[generator@$DIR/src/lib.rs:201:9: 201:67]`
-
-Some errors have detailed explanations: E0277, E0658.
-For more information about an error, try `rustc --explain E0277`.
+  = help: the trait `FnOnce<(&str,)>` is not implemented for `[generator@$DIR/tests/ui/yield_in_closure.rs:6:23: 6:26]`
+note: required by a bound in `Result::<T, E>::and_then`
+ --> $RUST/core/src/result.rs
+  |
+  |     pub fn and_then<U, F: FnOnce(T) -> Result<U, E>>(self, op: F) -> Result<U, E> {
+  |                           ^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `Result::<T, E>::and_then`
diff --git a/tests/ui/yield_in_nested_fn.stderr b/tests/ui/yield_in_nested_fn.stderr
index a562555..54fdee9 100644
--- a/tests/ui/yield_in_nested_fn.stderr
+++ b/tests/ui/yield_in_nested_fn.stderr
@@ -1,5 +1,5 @@
 error[E0658]: yield syntax is experimental
- --> $DIR/yield_in_nested_fn.rs:6:13
+ --> tests/ui/yield_in_nested_fn.rs:6:13
   |
 6 |             yield "hello";
   |             ^^^^^^^^^^^^^
@@ -7,10 +7,7 @@
   = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
 
 error[E0627]: yield expression outside of generator literal
- --> $DIR/yield_in_nested_fn.rs:6:13
+ --> tests/ui/yield_in_nested_fn.rs:6:13
   |
 6 |             yield "hello";
   |             ^^^^^^^^^^^^^
-
-Some errors have detailed explanations: E0627, E0658.
-For more information about an error, try `rustc --explain E0627`.