[INFO] fetching crate actix-utils 3.0.0-beta.1...
[INFO] testing actix-utils-3.0.0-beta.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate actix-utils 3.0.0-beta.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate actix-utils 3.0.0-beta.1 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate actix-utils 3.0.0-beta.1
[INFO] finished tweaking crates.io crate actix-utils 3.0.0-beta.1
[INFO] tweaked toml for crates.io crate actix-utils 3.0.0-beta.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bb3ffc46f4a4b7fe2d86d2dbc6684e1b7f3019e145b6fbc5311810482140f309
[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" "bb3ffc46f4a4b7fe2d86d2dbc6684e1b7f3019e145b6fbc5311810482140f309", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb3ffc46f4a4b7fe2d86d2dbc6684e1b7f3019e145b6fbc5311810482140f309", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb3ffc46f4a4b7fe2d86d2dbc6684e1b7f3019e145b6fbc5311810482140f309", kill_on_drop: false }`
[INFO] [stdout] bb3ffc46f4a4b7fe2d86d2dbc6684e1b7f3019e145b6fbc5311810482140f309
[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=warn" "-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 51e0591a0eba7fc7f6f688f5c63d37123bb3af8e051ec2259418240d924d2dfe
[INFO] running `Command { std: "docker" "start" "-a" "51e0591a0eba7fc7f6f688f5c63d37123bb3af8e051ec2259418240d924d2dfe", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling bytes v1.0.0
[INFO] [stderr]    Compiling tokio v1.0.1
[INFO] [stderr]    Compiling actix-service v2.0.0-beta.2
[INFO] [stderr]    Compiling mio v0.7.7
[INFO] [stderr]    Compiling async-stream-impl v0.3.0
[INFO] [stderr]    Compiling actix-macros v0.1.3
[INFO] [stderr]    Compiling actix-rt v2.0.0-beta.1
[INFO] [stderr]    Compiling async-stream v0.3.0
[INFO] [stderr]    Compiling tokio-stream v0.1.0
[INFO] [stderr]    Compiling tokio-util v0.6.0
[INFO] [stderr]    Compiling actix-codec v0.4.0-beta.1
[INFO] [stderr]    Compiling actix-utils v3.0.0-beta.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.24s
[INFO] running `Command { std: "docker" "inspect" "51e0591a0eba7fc7f6f688f5c63d37123bb3af8e051ec2259418240d924d2dfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51e0591a0eba7fc7f6f688f5c63d37123bb3af8e051ec2259418240d924d2dfe", kill_on_drop: false }`
[INFO] [stdout] 51e0591a0eba7fc7f6f688f5c63d37123bb3af8e051ec2259418240d924d2dfe
[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=warn" "-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cfcd9a872ea71f42fc07658857accdd994b9929d26c4061634efe4ee9d45da7a
[INFO] running `Command { std: "docker" "start" "-a" "cfcd9a872ea71f42fc07658857accdd994b9929d26c4061634efe4ee9d45da7a", kill_on_drop: false }`
[INFO] [stderr]    Compiling actix-utils v3.0.0-beta.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures_util`
[INFO] [stdout]    --> src/mpsc.rs:188:9
[INFO] [stdout]     |
[INFO] [stdout] 188 |     use futures_util::future::lazy;
[INFO] [stdout]     |         ^^^^^^^^^^^^ use of undeclared crate or module `futures_util`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures_util`
[INFO] [stdout]    --> src/mpsc.rs:189:9
[INFO] [stdout]     |
[INFO] [stdout] 189 |     use futures_util::{stream::Stream, StreamExt};
[INFO] [stdout]     |         ^^^^^^^^^^^^ use of undeclared crate or module `futures_util`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `futures_util`
[INFO] [stdout]    --> src/mpsc.rs:189:9
[INFO] [stdout]     |
[INFO] [stdout] 189 |     use futures_util::{stream::Stream, StreamExt};
[INFO] [stdout]     |         ^^^^^^^^^^^^ use of undeclared crate or module `futures_util`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `lazy` in this scope
[INFO] [stdout]    --> src/mpsc.rs:202:13
[INFO] [stdout]     |
[INFO] [stdout] 202 |             lazy(|cx| Pin::new(&mut rx).poll_next(cx)).await,
[INFO] [stdout]     |             ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `lazy` in this scope
[INFO] [stdout]    --> src/mpsc.rs:207:13
[INFO] [stdout]     |
[INFO] [stdout] 207 |             lazy(|cx| Pin::new(&mut rx).poll_next(cx)).await,
[INFO] [stdout]     |             ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `next` found for struct `mpsc::Receiver<&str>` in the current scope
[INFO] [stdout]    --> src/mpsc.rs:195:23
[INFO] [stdout]     |
[INFO] [stdout] 115 | pub struct Receiver<T> {
[INFO] [stdout]     | ---------------------- method `next` not found for this
[INFO] [stdout] ...
[INFO] [stdout] 195 |         assert_eq!(rx.next().await.unwrap(), "test");
[INFO] [stdout]     |                       ^^^^ method not found in `mpsc::Receiver<&str>`
[INFO] [stdout]     | 
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-stream-0.1.0/src/lib.rs:224:8
[INFO] [stdout]     |
[INFO] [stdout] 224 |     fn next(&mut self) -> Next<'_, Self>
[INFO] [stdout]     |        ---- the method is available for `Box<mpsc::Receiver<&str>>` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout]     = note: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]             `use tokio_stream::StreamExt;`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `next` found for struct `mpsc::Receiver<&str>` in the current scope
[INFO] [stdout]    --> src/mpsc.rs:199:23
[INFO] [stdout]     |
[INFO] [stdout] 115 | pub struct Receiver<T> {
[INFO] [stdout]     | ---------------------- method `next` not found for this
[INFO] [stdout] ...
[INFO] [stdout] 199 |         assert_eq!(rx.next().await.unwrap(), "test2");
[INFO] [stdout]     |                       ^^^^ method not found in `mpsc::Receiver<&str>`
[INFO] [stdout]     | 
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-stream-0.1.0/src/lib.rs:224:8
[INFO] [stdout]     |
[INFO] [stdout] 224 |     fn next(&mut self) -> Next<'_, Self>
[INFO] [stdout]     |        ---- the method is available for `Box<mpsc::Receiver<&str>>` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout]     = note: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]             `use tokio_stream::StreamExt;`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `next` found for struct `mpsc::Receiver<&str>` in the current scope
[INFO] [stdout]    --> src/mpsc.rs:211:23
[INFO] [stdout]     |
[INFO] [stdout] 115 | pub struct Receiver<T> {
[INFO] [stdout]     | ---------------------- method `next` not found for this
[INFO] [stdout] ...
[INFO] [stdout] 211 |         assert_eq!(rx.next().await, None);
[INFO] [stdout]     |                       ^^^^ method not found in `mpsc::Receiver<&str>`
[INFO] [stdout]     | 
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-stream-0.1.0/src/lib.rs:224:8
[INFO] [stdout]     |
[INFO] [stdout] 224 |     fn next(&mut self) -> Next<'_, Self>
[INFO] [stdout]     |        ---- the method is available for `Box<mpsc::Receiver<&str>>` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout]     = note: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]             `use tokio_stream::StreamExt;`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0432, E0433, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `actix-utils`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "cfcd9a872ea71f42fc07658857accdd994b9929d26c4061634efe4ee9d45da7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfcd9a872ea71f42fc07658857accdd994b9929d26c4061634efe4ee9d45da7a", kill_on_drop: false }`
[INFO] [stdout] cfcd9a872ea71f42fc07658857accdd994b9929d26c4061634efe4ee9d45da7a