Update pin-project to 1

.travis.yml

@@ -10,10 +10,33 @@ before_cache:
 
 matrix:
   include:
-    # This is the minimum Rust version supported by futures-rs.
+    # This is the minimum Rust version supported by futures-core, futures-io, futures-sink, futures-task, futures-channel.
     # When updating this, the reminder to update the minimum required version in README.md.
-    - name: cargo check (minimum required version)
+    - name: cargo check (minimum required version of futures-{core, io, sink, task})
       rust: 1.36.0
+      install:
+        # cargo does not support for --features/--no-default-features with workspace, so use cargo-hack instead.
+        # Refs: cargo#3620, cargo#4106, cargo#4463, cargo#4753, cargo#5015, cargo#5364, cargo#6195
+        - if ! cargo hack -V 2>/dev/null; then
+            cargo install cargo-hack;
+          fi
+      script:
+        # remove dev-dependencies to avoid https://github.com/rust-lang/cargo/issues/4866
+        - cargo hack --remove-dev-deps --workspace
+        # Check no-default-features
+        - cargo hack check --workspace --ignore-private --no-default-features
+            --exclude futures --exclude futures-util --exclude futures-executor --exclude futures-test
+        # Check alloc feature
+        - cargo hack check --workspace --ignore-private --no-default-features --features alloc --ignore-unknown-features
+            --exclude futures --exclude futures-util --exclude futures-executor --exclude futures-test
+        # Check std feature
+        - cargo hack check --workspace --ignore-private --no-default-features --features std --ignore-unknown-features
+            --exclude futures --exclude futures-util --exclude futures-executor --exclude futures-test
+
+    # This is the minimum Rust version supported by futures, futures-util, futures-executor, futures-test.
+    # When updating this, the reminder to update the minimum required version in README.md.
+    - name: cargo check (minimum required version of futures-{util, executor, test})
+      rust: 1.37.0
       install:
         # cargo does not support for --features/--no-default-features with workspace, so use cargo-hack instead.
         # Refs: cargo#3620, cargo#4106, cargo#4463, cargo#4753, cargo#5015, cargo#5364, cargo#6195

futures-test/Cargo.toml

@@ -20,7 +20,7 @@ futures-executor = { version = "0.3.6", path = "../futures-executor", default-fe
 futures-sink = { version = "0.3.6", path = "../futures-sink", default-features = false }
 pin-utils = { version = "0.1.0", default-features = false }
 once_cell = { version = "1.3.1", default-features = false, features = ["std"], optional = true }
-pin-project = "0.4.20"
+pin-project = "1"
 
 [dev-dependencies]
 futures = { version = "0.3.6", path = "../futures", default-features = false, features = ["std", "executor"] }

futures-util/Cargo.toml

@@ -46,7 +46,7 @@ memchr = { version = "2.2", optional = true }
 futures_01 = { version = "0.1.25", optional = true, package = "futures" }
 tokio-io = { version = "0.1.9", optional = true }
 pin-utils = "0.1.0"
-pin-project = "0.4.20"
+pin-project = "1"
 
 [dev-dependencies]
 futures = { path = "../futures", version = "0.3.6", features = ["async-await", "thread-pool"] }

futures/Cargo.toml

@@ -33,7 +33,7 @@ futures-executor = { path = "../futures-executor", version = "0.3.6", features =
 futures-test = { path = "../futures-test", version = "0.3.6" }
 tokio = "0.1.11"
 assert_matches = "1.3.0"
-pin-project = "0.4.20"
+pin-project = "1"
 
 [features]
 default = ["std", "async-await", "executor"]