[INFO] fetching crate futures-util 0.3.8...
[INFO] checking futures-util-0.3.8 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] extracting crate futures-util 0.3.8 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate futures-util 0.3.8 on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate futures-util 0.3.8
[INFO] finished tweaking crates.io crate futures-util 0.3.8
[INFO] tweaked toml for crates.io crate futures-util 0.3.8 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2363bb49457d7bf247c5a79cde611456ba77cbdba8337cddd34b5c2f99a671b2
[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" "2363bb49457d7bf247c5a79cde611456ba77cbdba8337cddd34b5c2f99a671b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2363bb49457d7bf247c5a79cde611456ba77cbdba8337cddd34b5c2f99a671b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2363bb49457d7bf247c5a79cde611456ba77cbdba8337cddd34b5c2f99a671b2", kill_on_drop: false }`
[INFO] [stdout] 2363bb49457d7bf247c5a79cde611456ba77cbdba8337cddd34b5c2f99a671b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 86661dbcf649c48c0a41cc75643261131cbfcb4d95fe3ca064d9a722054e2217
[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" "86661dbcf649c48c0a41cc75643261131cbfcb4d95fe3ca064d9a722054e2217", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-util v0.3.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/future/future/shared.rs:213:36
[INFO] [stdout]     |
[INFO] [stdout] 213 |         match inner.notifier.state.compare_and_swap(IDLE, POLLING, SeqCst) {
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/future/future/shared.rs:258:48
[INFO] [stdout]     |
[INFO] [stdout] 258 |                     match inner.notifier.state.compare_and_swap(POLLING, IDLE, SeqCst) {
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/future/future/shared.rs:213:36
[INFO] [stdout]     |
[INFO] [stdout] 213 |         match inner.notifier.state.compare_and_swap(IDLE, POLLING, SeqCst) {
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/future/future/shared.rs:258:48
[INFO] [stdout]     |
[INFO] [stdout] 258 |                     match inner.notifier.state.compare_and_swap(POLLING, IDLE, SeqCst) {
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> benches/futures_unordered.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use futures::channel::oneshot;
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> benches/futures_unordered.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use futures::executor::block_on;
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> benches/futures_unordered.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use futures::stream::{StreamExt, FuturesUnordered};
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]   --> benches/futures_unordered.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use futures::task::Poll;
[INFO] [stdout]    |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `futures`
[INFO] [stdout]  --> benches/futures_unordered.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use futures::future;
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `oneshot`
[INFO] [stdout]   --> benches/futures_unordered.rs:23:28
[INFO] [stdout]    |
[INFO] [stdout] 23 |             let (tx, rx) = oneshot::channel();
[INFO] [stdout]    |                            ^^^^^^^ use of undeclared crate or module `oneshot`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Poll`
[INFO] [stdout]   --> benches/futures_unordered.rs:36:24
[INFO] [stdout]    |
[INFO] [stdout] 36 |                 if let Poll::Ready(None) = rxs.poll_next_unpin(cx) {
[INFO] [stdout]    |                        ^^^^ use of undeclared type `Poll`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `FuturesUnordered`
[INFO] [stdout]   --> benches/futures_unordered.rs:20:23
[INFO] [stdout]    |
[INFO] [stdout] 20 |         let mut rxs = FuturesUnordered::new();
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 4  | use futures_util::stream::FuturesUnordered;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `block_on` in this scope
[INFO] [stdout]   --> benches/futures_unordered.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |         block_on(future::poll_fn(move |cx| {
[INFO] [stdout]    |         ^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Poll`
[INFO] [stdout]   --> benches/futures_unordered.rs:40:13
[INFO] [stdout]    |
[INFO] [stdout] 40 |             Poll::Ready(())
[INFO] [stdout]    |             ^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 4  | use core::task::Poll;
[INFO] [stdout]    |
[INFO] [stdout] 4  | use crate::thread::thread::env::sys::ext::net::raw_fd::sys_common::backtrace::backtrace_rs::symbolize::gimli::mystd::task::Poll;
[INFO] [stdout]    |
[INFO] [stdout] 4  | use futures_core::__private::Poll;
[INFO] [stdout]    |
[INFO] [stdout] 4  | use futures_task::Poll;
[INFO] [stdout]    |
[INFO] [stdout]      and 3 other candidates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 10 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `futures-util`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "86661dbcf649c48c0a41cc75643261131cbfcb4d95fe3ca064d9a722054e2217", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86661dbcf649c48c0a41cc75643261131cbfcb4d95fe3ca064d9a722054e2217", kill_on_drop: false }`
[INFO] [stdout] 86661dbcf649c48c0a41cc75643261131cbfcb4d95fe3ca064d9a722054e2217