[INFO] updating cached repository https://github.com/sabahtalateh/hello_async [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] cedd7306a8da53fcd0028f9ab8c98329d5003219 [INFO] checking sabahtalateh/hello_async against master#b61e69433951e31f7bd746e22f516a48ad41623b for prs-64470-and-65389 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsabahtalateh%2Fhello_async" "/workspace/builds/worker-0/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/sabahtalateh/hello_async on toolchain b61e69433951e31f7bd746e22f516a48ad41623b [INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/sabahtalateh/hello_async [INFO] finished tweaking git repo https://github.com/sabahtalateh/hello_async [INFO] tweaked toml for git repo https://github.com/sabahtalateh/hello_async written to /workspace/builds/worker-0/source/Cargo.toml [INFO] crate git repo https://github.com/sabahtalateh/hello_async already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 6ea89e613fb52a4ceb666499b514bd5bcda0b93804594fb68c544c2424bfe3dd [INFO] running `"docker" "start" "-a" "6ea89e613fb52a4ceb666499b514bd5bcda0b93804594fb68c544c2424bfe3dd"` [INFO] [stderr] Checking tokio-io v0.1.12 [INFO] [stderr] Checking tokio-threadpool v0.1.15 [INFO] [stderr] Checking tokio-reactor v0.1.9 [INFO] [stderr] Checking tokio-codec v0.1.1 [INFO] [stderr] Checking tokio-fs v0.1.6 [INFO] [stderr] Checking tokio-udp v0.1.3 [INFO] [stderr] Checking tokio-tcp v0.1.3 [INFO] [stderr] Checking tokio-uds v0.2.5 [INFO] [stderr] Checking tokio v0.1.22 [INFO] [stderr] Checking tokio-core v0.1.17 [INFO] [stderr] Checking hello_async v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `std::time::Duration` [INFO] [stderr] --> src/bin/mutex.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use std::time::Duration; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/bin/tokio_spawn.rs:20:13 [INFO] [stderr] | [INFO] [stderr] 20 | tx.send("hello from spawned task"); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: function is never used: `read_exact` [INFO] [stderr] --> src/bin/tokio_async_read.rs:26:1 [INFO] [stderr] | [INFO] [stderr] 26 | / fn read_exact(reader: R, buffer: T) -> ReadExact [INFO] [stderr] 27 | | where [INFO] [stderr] 28 | | R: AsyncRead, [INFO] [stderr] 29 | | T: AsMut<[u8]>, [INFO] [stderr] ... | [INFO] [stderr] 36 | | })) [INFO] [stderr] 37 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/tokio_io_read8.rs:16:17 [INFO] [stderr] | [INFO] [stderr] 16 | let mut buf = vec![0; 8]; [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `f` [INFO] [stderr] --> src/bin/tokio_functional.rs:72:61 [INFO] [stderr] | [INFO] [stderr] 72 | fn with_future>(f: F) {} [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_f` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/bin/tokio_functional.rs:16:9 [INFO] [stderr] | [INFO] [stderr] 16 | / get_data().and_then(|data| { [INFO] [stderr] 17 | | dst.push(data); [INFO] [stderr] 18 | | Ok(()) [INFO] [stderr] 19 | | }); [INFO] [stderr] | |___________^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/bin/tokio_spawn.rs:20:13 [INFO] [stderr] | [INFO] [stderr] 20 | tx.send("hello from spawned task"); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused import: `future` [INFO] [stderr] --> src/bin/tokio_ping_pong_2.rs:46:15 [INFO] [stderr] | [INFO] [stderr] 46 | use futures::{future, Future, Sink, Stream}; [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `future` [INFO] [stderr] --> src/bin/tokio_ping_pong_2.rs:46:15 [INFO] [stderr] | [INFO] [stderr] 46 | use futures::{future, Future, Sink, Stream}; [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `yielded` [INFO] [stderr] --> src/bin/tokio_stream_fib.rs:87:13 [INFO] [stderr] | [INFO] [stderr] 87 | let yielded = curr; [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_yielded` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary trailing semicolon [INFO] [stderr] --> src/bin/tokio_read_timeout.rs:16:5 [INFO] [stderr] | [INFO] [stderr] 16 | ; [INFO] [stderr] | ^ help: remove this semicolon [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(redundant_semicolon)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `Stream` [INFO] [stderr] --> src/bin/tokio_ping_pong.rs:12:37 [INFO] [stderr] | [INFO] [stderr] 12 | use futures::{future, Future, Sink, Stream}; [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `Instant` [INFO] [stderr] --> src/bin/tokio_ping_pong.rs:14:27 [INFO] [stderr] | [INFO] [stderr] 14 | use std::time::{Duration, Instant}; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0271]: type mismatch resolving `>> as futures::future::Future>::Item == (std::time::Duration, tokio_sync::mpsc::bounded::Sender>)` [INFO] [stderr] --> src/bin/tokio_ping_pong.rs:52:6 [INFO] [stderr] | [INFO] [stderr] 52 | ) -> impl Future), Error = ()> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `tokio_sync::mpsc::bounded::Sender`, found tuple [INFO] [stderr] | [INFO] [stderr] = note: expected type `tokio_sync::mpsc::bounded::Sender>` [INFO] [stderr] found type `(std::time::Duration, tokio_sync::mpsc::bounded::Sender>)` [INFO] [stderr] = note: the return type of a function must have a statically known size [INFO] [stderr] [INFO] [stderr] error[E0271]: type mismatch resolving `>> as futures::future::Future>::Error == ()` [INFO] [stderr] --> src/bin/tokio_ping_pong.rs:52:6 [INFO] [stderr] | [INFO] [stderr] 52 | ) -> impl Future), Error = ()> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `tokio_sync::mpsc::bounded::SendError`, found () [INFO] [stderr] | [INFO] [stderr] = note: expected type `tokio_sync::mpsc::bounded::SendError` [INFO] [stderr] found type `()` [INFO] [stderr] = note: the return type of a function must have a statically known size [INFO] [stderr] [INFO] [stderr] error[E0271]: type mismatch resolving ` as futures::future::Future>::Item == ()` [INFO] [stderr] --> src/bin/tokio_ping_pong.rs:87:13 [INFO] [stderr] | [INFO] [stderr] 87 | tokio::spawn(lazy(|| rtt(tx))) [INFO] [stderr] | ^^^^^^^^^^^^ expected tuple, found () [INFO] [stderr] | [INFO] [stderr] ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-0.1.22/src/executor/mod.rs:131:17 [INFO] [stderr] | [INFO] [stderr] 131 | where F: Future + 'static + Send [INFO] [stderr] | --------- required by this bound in `tokio::executor::spawn` [INFO] [stderr] | [INFO] [stderr] = note: expected type `(std::time::Duration, tokio_sync::mpsc::bounded::Sender>)` [INFO] [stderr] found type `()` [INFO] [stderr] [INFO] [stderr] error[E0308]: mismatched types [INFO] [stderr] --> src/bin/tokio_ping_pong.rs:87:13 [INFO] [stderr] | [INFO] [stderr] 87 | tokio::spawn(lazy(|| rtt(tx))) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^- help: try adding a semicolon: `;` [INFO] [stderr] | | [INFO] [stderr] | expected (), found struct `tokio::executor::Spawn` [INFO] [stderr] | [INFO] [stderr] = note: expected type `()` [INFO] [stderr] found type `tokio::executor::Spawn` [INFO] [stderr] [INFO] [stderr] error: aborting due to 4 previous errors [INFO] [stderr] [INFO] [stderr] Some errors have detailed explanations: E0271, E0308. [INFO] [stderr] For more information about an error, try `rustc --explain E0271`. [INFO] [stderr] error: could not compile `hello_async`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] warning: unused import: `Stream` [INFO] [stderr] --> src/bin/tokio_ping_pong.rs:12:37 [INFO] [stderr] | [INFO] [stderr] 12 | use futures::{future, Future, Sink, Stream}; [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `Instant` [INFO] [stderr] --> src/bin/tokio_ping_pong.rs:14:27 [INFO] [stderr] | [INFO] [stderr] 14 | use std::time::{Duration, Instant}; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0271]: type mismatch resolving `>> as futures::future::Future>::Item == (std::time::Duration, tokio_sync::mpsc::bounded::Sender>)` [INFO] [stderr] --> src/bin/tokio_ping_pong.rs:52:6 [INFO] [stderr] | [INFO] [stderr] 52 | ) -> impl Future), Error = ()> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `tokio_sync::mpsc::bounded::Sender`, found tuple [INFO] [stderr] | [INFO] [stderr] = note: expected type `tokio_sync::mpsc::bounded::Sender>` [INFO] [stderr] found type `(std::time::Duration, tokio_sync::mpsc::bounded::Sender>)` [INFO] [stderr] = note: the return type of a function must have a statically known size [INFO] [stderr] [INFO] [stderr] error[E0271]: type mismatch resolving `>> as futures::future::Future>::Error == ()` [INFO] [stderr] --> src/bin/tokio_ping_pong.rs:52:6 [INFO] [stderr] | [INFO] [stderr] 52 | ) -> impl Future), Error = ()> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `tokio_sync::mpsc::bounded::SendError`, found () [INFO] [stderr] | [INFO] [stderr] = note: expected type `tokio_sync::mpsc::bounded::SendError` [INFO] [stderr] found type `()` [INFO] [stderr] = note: the return type of a function must have a statically known size [INFO] [stderr] [INFO] [stderr] error[E0271]: type mismatch resolving ` as futures::future::Future>::Item == ()` [INFO] [stderr] --> src/bin/tokio_ping_pong.rs:87:13 [INFO] [stderr] | [INFO] [stderr] 87 | tokio::spawn(lazy(|| rtt(tx))) [INFO] [stderr] | ^^^^^^^^^^^^ expected tuple, found () [INFO] [stderr] | [INFO] [stderr] ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-0.1.22/src/executor/mod.rs:131:17 [INFO] [stderr] | [INFO] [stderr] 131 | where F: Future + 'static + Send [INFO] [stderr] | --------- required by this bound in `tokio::executor::spawn` [INFO] [stderr] | [INFO] [stderr] = note: expected type `(std::time::Duration, tokio_sync::mpsc::bounded::Sender>)` [INFO] [stderr] found type `()` [INFO] [stderr] [INFO] [stderr] error[E0308]: mismatched types [INFO] [stderr] --> src/bin/tokio_ping_pong.rs:87:13 [INFO] [stderr] | [INFO] [stderr] 87 | tokio::spawn(lazy(|| rtt(tx))) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^- help: try adding a semicolon: `;` [INFO] [stderr] | | [INFO] [stderr] | expected (), found struct `tokio::executor::Spawn` [INFO] [stderr] | [INFO] [stderr] = note: expected type `()` [INFO] [stderr] found type `tokio::executor::Spawn` [INFO] [stderr] [INFO] [stderr] error: aborting due to 4 previous errors [INFO] [stderr] [INFO] [stderr] Some errors have detailed explanations: E0271, E0308. [INFO] [stderr] For more information about an error, try `rustc --explain E0271`. [INFO] [stderr] error: could not compile `hello_async`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "6ea89e613fb52a4ceb666499b514bd5bcda0b93804594fb68c544c2424bfe3dd"` [INFO] running `"docker" "rm" "-f" "6ea89e613fb52a4ceb666499b514bd5bcda0b93804594fb68c544c2424bfe3dd"` [INFO] [stdout] 6ea89e613fb52a4ceb666499b514bd5bcda0b93804594fb68c544c2424bfe3dd