[INFO] cloning repository https://github.com/itsmontoya/tokio_learning [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/itsmontoya/tokio_learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitsmontoya%2Ftokio_learning", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitsmontoya%2Ftokio_learning'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1ef2f192055ffb041d21a0f4b29151fc24d1d3a4 [INFO] checking itsmontoya/tokio_learning against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitsmontoya%2Ftokio_learning" "/workspace/builds/worker-2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/itsmontoya/tokio_learning on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/itsmontoya/tokio_learning [INFO] finished tweaking git repo https://github.com/itsmontoya/tokio_learning [INFO] tweaked toml for git repo https://github.com/itsmontoya/tokio_learning written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/itsmontoya/tokio_learning already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded futures v0.1.13 [INFO] [stderr] Downloaded mio v0.6.7 [INFO] [stderr] Downloaded tokio-io v0.1.1 [INFO] [stderr] Downloaded bytes v0.4.2 [INFO] [stderr] Downloaded net2 v0.2.27 [INFO] [stderr] Downloaded tokio-core v0.1.6 [INFO] [stderr] Downloaded libc v0.2.22 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f3169ea7de6c7c9044b01d5dcaa33f608b5901b1636b9af7cd48e35774415f4e [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "f3169ea7de6c7c9044b01d5dcaa33f608b5901b1636b9af7cd48e35774415f4e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f3169ea7de6c7c9044b01d5dcaa33f608b5901b1636b9af7cd48e35774415f4e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f3169ea7de6c7c9044b01d5dcaa33f608b5901b1636b9af7cd48e35774415f4e", kill_on_drop: false }` [INFO] [stdout] f3169ea7de6c7c9044b01d5dcaa33f608b5901b1636b9af7cd48e35774415f4e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c73217371949fc3508d89cdd053ee5a27a21f973133a18466363766d66b0321f [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "c73217371949fc3508d89cdd053ee5a27a21f973133a18466363766d66b0321f", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Checking libc v0.2.22 [INFO] [stderr] Checking futures v0.1.13 [INFO] [stderr] Checking iovec v0.1.0 [INFO] [stderr] Checking net2 v0.2.27 [INFO] [stderr] Checking bytes v0.4.2 [INFO] [stderr] Checking mio v0.6.7 [INFO] [stderr] Checking tokio-io v0.1.1 [INFO] [stderr] Checking tokio-core v0.1.6 [INFO] [stderr] Checking helloWorld v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:86:90 [INFO] [stdout] | [INFO] [stdout] 86 | ...: std::net::SocketAddr) -> Box> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn futures::future::Future` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:86:90 [INFO] [stdout] | [INFO] [stdout] 86 | ...: std::net::SocketAddr) -> Box> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn futures::future::Future` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0271]: type mismatch resolving `> as futures::Future>::Error == ()` [INFO] [stdout] --> src/main.rs:72:16 [INFO] [stdout] | [INFO] [stdout] 72 | handle.spawn(msg); [INFO] [stdout] | ^^^^^ expected struct `std::io::Error`, found `()` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0271]: type mismatch resolving `> as futures::Future>::Error == ()` [INFO] [stdout] --> src/main.rs:72:16 [INFO] [stdout] | [INFO] [stdout] 72 | handle.spawn(msg); [INFO] [stdout] | ^^^^^ expected struct `std::io::Error`, found `()` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the trait bound `(): futures::Future` is not satisfied [INFO] [stdout] --> src/main.rs:70:34 [INFO] [stdout] | [INFO] [stdout] 70 | let done = socket.incoming().for_each(move |(socket, addr)| { [INFO] [stdout] | ^^^^^^^^ the trait `futures::Future` is not implemented for `()` [INFO] [stdout] | [INFO] [stdout] = note: required because of the requirements on the impl of `futures::IntoFuture` for `()` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the trait bound `(): futures::Future` is not satisfied [INFO] [stdout] --> src/main.rs:83:14 [INFO] [stdout] | [INFO] [stdout] 83 | core.run(done).unwrap(); [INFO] [stdout] | ^^^^ the trait `futures::Future` is not implemented for `()` [INFO] [stdout] | [INFO] [stdout] = note: required because of the requirements on the impl of `futures::IntoFuture` for `()` [INFO] [stdout] = note: required because of the requirements on the impl of `futures::Future` for `ForEach` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the trait bound `(): futures::Future` is not satisfied [INFO] [stdout] --> src/main.rs:92:19 [INFO] [stdout] | [INFO] [stdout] 92 | let msg = amt.then(move |result| { [INFO] [stdout] | ^^^^ the trait `futures::Future` is not implemented for `()` [INFO] [stdout] | [INFO] [stdout] = note: required because of the requirements on the impl of `futures::IntoFuture` for `()` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the trait bound `(): futures::Future` is not satisfied [INFO] [stdout] --> src/main.rs:99:13 [INFO] [stdout] | [INFO] [stdout] 99 | Ok(Box::new(msg)) [INFO] [stdout] | ^^^ the trait `futures::Future` is not implemented for `()` [INFO] [stdout] | [INFO] [stdout] ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-0.1.13/src/future/then.rs:10:46 [INFO] [stdout] | [INFO] [stdout] 10 | pub struct Then where A: Future, B: IntoFuture { [INFO] [stdout] | ---------- required by this bound in `futures::Then` [INFO] [stdout] | [INFO] [stdout] = note: required because of the requirements on the impl of `futures::IntoFuture` for `()` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the trait bound `(): futures::Future` is not satisfied [INFO] [stdout] --> src/main.rs:99:4 [INFO] [stdout] | [INFO] [stdout] 99 | Ok(Box::new(msg)) [INFO] [stdout] | ^^^^^^^^^^^^^ the trait `futures::Future` is not implemented for `()` [INFO] [stdout] | [INFO] [stdout] ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-0.1.13/src/future/then.rs:10:46 [INFO] [stdout] | [INFO] [stdout] 10 | pub struct Then where A: Future, B: IntoFuture { [INFO] [stdout] | ---------- required by this bound in `futures::Then` [INFO] [stdout] | [INFO] [stdout] = note: required because of the requirements on the impl of `futures::IntoFuture` for `()` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the trait bound `(): futures::Future` is not satisfied [INFO] [stdout] --> src/main.rs:99:1 [INFO] [stdout] | [INFO] [stdout] 99 | Ok(Box::new(msg)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ the trait `futures::Future` is not implemented for `()` [INFO] [stdout] | [INFO] [stdout] ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-0.1.13/src/future/then.rs:10:46 [INFO] [stdout] | [INFO] [stdout] 10 | pub struct Then where A: Future, B: IntoFuture { [INFO] [stdout] | ---------- required by this bound in `futures::Then` [INFO] [stdout] | [INFO] [stdout] = note: required because of the requirements on the impl of `futures::IntoFuture` for `()` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the trait bound `(): futures::Future` is not satisfied [INFO] [stdout] --> src/main.rs:70:34 [INFO] [stdout] | [INFO] [stdout] 70 | let done = socket.incoming().for_each(move |(socket, addr)| { [INFO] [stdout] | ^^^^^^^^ the trait `futures::Future` is not implemented for `()` [INFO] [stdout] | [INFO] [stdout] = note: required because of the requirements on the impl of `futures::IntoFuture` for `()` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the trait bound `(): futures::Future` is not satisfied [INFO] [stdout] --> src/main.rs:83:14 [INFO] [stdout] | [INFO] [stdout] 83 | core.run(done).unwrap(); [INFO] [stdout] | ^^^^ the trait `futures::Future` is not implemented for `()` [INFO] [stdout] | [INFO] [stdout] = note: required because of the requirements on the impl of `futures::IntoFuture` for `()` [INFO] [stdout] = note: required because of the requirements on the impl of `futures::Future` for `ForEach` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/main.rs:99:1 [INFO] [stdout] | [INFO] [stdout] 86 | fn handleIncoming(socket: tokio_core::net::TcpStream, addr: std::net::SocketAddr) -> Box... [INFO] [stdout] | ----------------------------------------------------------- expected `Box<(dyn futures::Future + 'static)>` because of return type [INFO] [stdout] ... [INFO] [stdout] 99 | Ok(Box::new(msg)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | expected struct `Box`, found enum `Result` [INFO] [stdout] | help: store this in the heap by calling `Box::new`: `Box::new(Ok(Box::new(msg)))` [INFO] [stdout] | [INFO] [stdout] = note: expected struct `Box<(dyn futures::Future + 'static)>` [INFO] [stdout] found enum `Result, tokio_io::io::WriteHalf>, (), [closure@src/main.rs:92:24: 97:6]>>, _>` [INFO] [stdout] = note: for more on the distinction between the stack and the heap, read https://doc.rust-lang.org/book/ch15-01-box.html, https://doc.rust-lang.org/rust-by-example/std/box.html, and https://doc.rust-lang.org/std/boxed/index.html [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 8 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0271, E0277, E0308. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0271`. [INFO] [stdout] [INFO] [stdout] error[E0277]: the trait bound `(): futures::Future` is not satisfied [INFO] [stdout] --> src/main.rs:92:19 [INFO] [stdout] | [INFO] [stdout] 92 | let msg = amt.then(move |result| { [INFO] [stdout] | ^^^^ the trait `futures::Future` is not implemented for `()` [INFO] [stdout] | [INFO] [stdout] = note: required because of the requirements on the impl of `futures::IntoFuture` for `()` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the trait bound `(): futures::Future` is not satisfied [INFO] [stdout] --> src/main.rs:99:13 [INFO] [stdout] | [INFO] [stdout] 99 | Ok(Box::new(msg)) [INFO] [stdout] | ^^^ the trait `futures::Future` is not implemented for `()` [INFO] [stdout] | [INFO] [stdout] ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-0.1.13/src/future/then.rs:10:46 [INFO] [stdout] | [INFO] [stdout] 10 | pub struct Then where A: Future, B: IntoFuture { [INFO] [stdout] | ---------- required by this bound in `futures::Then` [INFO] [stdout] | [INFO] [stdout] = note: required because of the requirements on the impl of `futures::IntoFuture` for `()` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the trait bound `(): futures::Future` is not satisfied [INFO] [stdout] --> src/main.rs:99:4 [INFO] [stdout] | [INFO] [stdout] 99 | Ok(Box::new(msg)) [INFO] [stdout] | ^^^^^^^^^^^^^ the trait `futures::Future` is not implemented for `()` [INFO] [stdout] | [INFO] [stdout] ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-0.1.13/src/future/then.rs:10:46 [INFO] [stdout] | [INFO] [stdout] 10 | pub struct Then where A: Future, B: IntoFuture { [INFO] [stdout] | ---------- required by this bound in `futures::Then` [INFO] [stdout] | [INFO] [stdout] = note: required because of the requirements on the impl of `futures::IntoFuture` for `()` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the trait bound `(): futures::Future` is not satisfied [INFO] [stdout] --> src/main.rs:99:1 [INFO] [stdout] | [INFO] [stdout] 99 | Ok(Box::new(msg)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ the trait `futures::Future` is not implemented for `()` [INFO] [stdout] | [INFO] [stdout] ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-0.1.13/src/future/then.rs:10:46 [INFO] [stdout] | [INFO] [stdout] 10 | pub struct Then where A: Future, B: IntoFuture { [INFO] [stdout] | ---------- required by this bound in `futures::Then` [INFO] [stdout] | [INFO] [stdout] = note: required because of the requirements on the impl of `futures::IntoFuture` for `()` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `helloWorld` [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/main.rs:99:1 [INFO] [stdout] | [INFO] [stdout] 86 | fn handleIncoming(socket: tokio_core::net::TcpStream, addr: std::net::SocketAddr) -> Box... [INFO] [stdout] | ----------------------------------------------------------- expected `Box<(dyn futures::Future + 'static)>` because of return type [INFO] [stdout] ... [INFO] [stdout] 99 | Ok(Box::new(msg)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | expected struct `Box`, found enum `Result` [INFO] [stdout] | help: store this in the heap by calling `Box::new`: `Box::new(Ok(Box::new(msg)))` [INFO] [stdout] | [INFO] [stdout] = note: expected struct `Box<(dyn futures::Future + 'static)>` [INFO] [stdout] found enum `Result, tokio_io::io::WriteHalf>, (), [closure@src/main.rs:92:24: 97:6]>>, _>` [INFO] [stdout] = note: for more on the distinction between the stack and the heap, read https://doc.rust-lang.org/book/ch15-01-box.html, https://doc.rust-lang.org/rust-by-example/std/box.html, and https://doc.rust-lang.org/std/boxed/index.html [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 8 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0271, E0277, E0308. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0271`. [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "c73217371949fc3508d89cdd053ee5a27a21f973133a18466363766d66b0321f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c73217371949fc3508d89cdd053ee5a27a21f973133a18466363766d66b0321f", kill_on_drop: false }` [INFO] [stdout] c73217371949fc3508d89cdd053ee5a27a21f973133a18466363766d66b0321f