[INFO] fetching crate futures-test-preview 0.3.0-alpha.19...
[INFO] testing futures-test-preview-0.3.0-alpha.19 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate futures-test-preview 0.3.0-alpha.19 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate futures-test-preview 0.3.0-alpha.19 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate futures-test-preview 0.3.0-alpha.19
[INFO] finished tweaking crates.io crate futures-test-preview 0.3.0-alpha.19
[INFO] tweaked toml for crates.io crate futures-test-preview 0.3.0-alpha.19 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-executor-preview v0.3.0-alpha.19
[INFO] [stderr]   Downloaded futures-preview v0.3.0-alpha.19
[INFO] [stderr]   Downloaded futures-util-preview v0.3.0-alpha.19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1dfef2e79cc64c40e546ddd0ec1c6d992e0e2a5320deda8aa042d7eb6867025b
[INFO] running `Command { std: "docker" "start" "-a" "1dfef2e79cc64c40e546ddd0ec1c6d992e0e2a5320deda8aa042d7eb6867025b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1dfef2e79cc64c40e546ddd0ec1c6d992e0e2a5320deda8aa042d7eb6867025b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1dfef2e79cc64c40e546ddd0ec1c6d992e0e2a5320deda8aa042d7eb6867025b", kill_on_drop: false }`
[INFO] [stdout] 1dfef2e79cc64c40e546ddd0ec1c6d992e0e2a5320deda8aa042d7eb6867025b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 327d4fd886ac4df2e2e0d21f6be73d2e338712e2690299bfcc7500df077de628
[INFO] running `Command { std: "docker" "start" "-a" "327d4fd886ac4df2e2e0d21f6be73d2e338712e2690299bfcc7500df077de628", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling futures-sink-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling futures-io-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling futures-executor-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling futures-test-preview v0.3.0-alpha.19 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.95s
[INFO] running `Command { std: "docker" "inspect" "327d4fd886ac4df2e2e0d21f6be73d2e338712e2690299bfcc7500df077de628", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "327d4fd886ac4df2e2e0d21f6be73d2e338712e2690299bfcc7500df077de628", kill_on_drop: false }`
[INFO] [stdout] 327d4fd886ac4df2e2e0d21f6be73d2e338712e2690299bfcc7500df077de628
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71f5adcb4680c1a484ef6cf554f3c9e9b1cd8398a7c2d770510c3b65030e7c1b
[INFO] running `Command { std: "docker" "start" "-a" "71f5adcb4680c1a484ef6cf554f3c9e9b1cd8398a7c2d770510c3b65030e7c1b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling futures-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling futures-test-preview v0.3.0-alpha.19 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "71f5adcb4680c1a484ef6cf554f3c9e9b1cd8398a7c2d770510c3b65030e7c1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71f5adcb4680c1a484ef6cf554f3c9e9b1cd8398a7c2d770510c3b65030e7c1b", kill_on_drop: false }`
[INFO] [stdout] 71f5adcb4680c1a484ef6cf554f3c9e9b1cd8398a7c2d770510c3b65030e7c1b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fdf742d022ce75df13c53686215a24305a05723e8a803dec7b5ce33873bf17cd
[INFO] running `Command { std: "docker" "start" "-a" "fdf742d022ce75df13c53686215a24305a05723e8a803dec7b5ce33873bf17cd", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/futures_test-9e4ef1b76cf42a1e)
[INFO] [stdout] running 2 tests
[INFO] [stdout] test future::assert_unmoved::tests::dont_panic_when_not_polled ... ok
[INFO] [stdout] test future::assert_unmoved::tests::dont_double_panic - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests futures_test
[INFO] [stdout] 
[INFO] [stdout] running 22 tests
[INFO] [stdout] test src/task/wake_counter.rs - task::wake_counter::new_count_waker (line 44) ... ok
[INFO] [stdout] test src/future/mod.rs - future::FutureTestExt::interleave_pending (line 88) ... ok
[INFO] [stdout] test src/task/noop_spawner.rs - task::noop_spawner::noop_spawner_mut (line 47) ... ok
[INFO] [stdout] test src/future/mod.rs - future::FutureTestExt::pending_once (line 37) ... ok
[INFO] [stdout] test src/task/noop_spawner.rs - task::noop_spawner::NoopSpawner (line 9) ... ok
[INFO] [stdout] test src/task/panic_spawner.rs - task::panic_spawner::panic_spawner_mut (line 48) ... ok
[INFO] [stdout] test src/task/panic_waker.rs - task::panic_waker::panic_waker_ref (line 48) ... ok
[INFO] [stdout] test src/io/read/mod.rs - io::read::AsyncReadTestExt::interleave_pending (line 45) ... ok
[INFO] [stdout] test src/task/record_spawner.rs - task::record_spawner::RecordSpawner (line 9) ... ok
[INFO] [stdout] test src/stream/mod.rs - stream::StreamTestExt::interleave_pending (line 14) ... ok
[INFO] [stdout] test src/assert.rs - assert::assert_stream_next (line 47) ... ok
[INFO] [stdout] test src/task/context.rs - task::context::noop_context (line 24) ... ok
[INFO] [stdout] test src/io/write/mod.rs - io::write::AsyncWriteTestExt::limited_write (line 55) ... ok
[INFO] [stdout] test src/task/panic_waker.rs - task::panic_waker::panic_waker (line 32) ... ok
[INFO] [stdout] test src/task/panic_spawner.rs - task::panic_spawner::PanicSpawner (line 9) ... ok
[INFO] [stdout] test src/io/write/mod.rs - io::write::AsyncWriteTestExt::interleave_pending_write (line 15) ... ok
[INFO] [stdout] test src/task/context.rs - task::context::panic_context (line 9) ... ok
[INFO] [stdout] test src/assert.rs - assert::assert_stream_done (line 89) ... ok
[INFO] [stdout] test src/future/mod.rs - future::FutureTestExt::run_in_background (line 63) ... ok
[INFO] [stdout] test src/assert.rs - assert::assert_stream_pending (line 11) ... ok
[INFO] [stdout] test src/io/read/mod.rs - io::read::AsyncReadTestExt::limited (line 79) ... ok
[INFO] [stdout] test src/io/read/mod.rs - io::read::AsyncReadTestExt::interleave_pending (line 15) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 22 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.59s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fdf742d022ce75df13c53686215a24305a05723e8a803dec7b5ce33873bf17cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdf742d022ce75df13c53686215a24305a05723e8a803dec7b5ce33873bf17cd", kill_on_drop: false }`
[INFO] [stdout] fdf742d022ce75df13c53686215a24305a05723e8a803dec7b5ce33873bf17cd