[INFO] fetching crate futures-util-preview 0.3.0-alpha.19...
[INFO] checking futures-util-preview-0.3.0-alpha.19 against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] extracting crate futures-util-preview 0.3.0-alpha.19 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate futures-util-preview 0.3.0-alpha.19 on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate futures-util-preview 0.3.0-alpha.19
[INFO] finished tweaking crates.io crate futures-util-preview 0.3.0-alpha.19
[INFO] tweaked toml for crates.io crate futures-util-preview 0.3.0-alpha.19 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 52eda69ec8f9ba39678df0c68b7ee0844b2594f3a4aedacf22ad2b25fc58cfd3
[INFO] running `Command { std: "docker" "start" "-a" "52eda69ec8f9ba39678df0c68b7ee0844b2594f3a4aedacf22ad2b25fc58cfd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52eda69ec8f9ba39678df0c68b7ee0844b2594f3a4aedacf22ad2b25fc58cfd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52eda69ec8f9ba39678df0c68b7ee0844b2594f3a4aedacf22ad2b25fc58cfd3", kill_on_drop: false }`
[INFO] [stdout] 52eda69ec8f9ba39678df0c68b7ee0844b2594f3a4aedacf22ad2b25fc58cfd3
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ab5910e8813bddda39512d594fc7f0b6fd18a952d49f7ab0fb31123537ef3e7
[INFO] running `Command { std: "docker" "start" "-a" "2ab5910e8813bddda39512d594fc7f0b6fd18a952d49f7ab0fb31123537ef3e7", kill_on_drop: false }`
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.19 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures_test`
[INFO] [stdout]   --> src/try_future/try_chain.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |     use futures_test::task::noop_context;
[INFO] [stdout]    |         ^^^^^^^^^^^^ use of undeclared crate or module `futures_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `noop_context` in this scope
[INFO] [stdout]   --> src/try_future/try_chain.rs:93:22
[INFO] [stdout]    |
[INFO] [stdout] 93 |         let mut cx = noop_context();
[INFO] [stdout]    |                      ^^^^^^^^^^^^ not found in this scope
[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/shared.rs:204:36
[INFO] [stdout]     |
[INFO] [stdout] 204 |         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/shared.rs:252:33
[INFO] [stdout]     |
[INFO] [stdout] 252 |                     match 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/shared.rs:324:24
[INFO] [stdout]     |
[INFO] [stdout] 324 |         arc_self.state.compare_and_swap(POLLING, REPOLL, 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/shared.rs:204:36
[INFO] [stdout]     |
[INFO] [stdout] 204 |         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/shared.rs:252:33
[INFO] [stdout]     |
[INFO] [stdout] 252 |                     match 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/shared.rs:324:24
[INFO] [stdout]     |
[INFO] [stdout] 324 |         arc_self.state.compare_and_swap(POLLING, REPOLL, SeqCst);
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, 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-preview` due to 3 previous errors; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "2ab5910e8813bddda39512d594fc7f0b6fd18a952d49f7ab0fb31123537ef3e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ab5910e8813bddda39512d594fc7f0b6fd18a952d49f7ab0fb31123537ef3e7", kill_on_drop: false }`
[INFO] [stdout] 2ab5910e8813bddda39512d594fc7f0b6fd18a952d49f7ab0fb31123537ef3e7