[INFO] fetching crate futures-macro-await-preview 0.2.2...
[INFO] testing futures-macro-await-preview-0.2.2 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate futures-macro-await-preview 0.2.2 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate futures-macro-await-preview 0.2.2 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate futures-macro-await-preview 0.2.2
[INFO] finished tweaking crates.io crate futures-macro-await-preview 0.2.2
[INFO] tweaked toml for crates.io crate futures-macro-await-preview 0.2.2 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e59c5e7efaefb1b9f47692820a710062ae5c84ccd6a493ac7e29de9e574b1764
[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" "e59c5e7efaefb1b9f47692820a710062ae5c84ccd6a493ac7e29de9e574b1764", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e59c5e7efaefb1b9f47692820a710062ae5c84ccd6a493ac7e29de9e574b1764", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e59c5e7efaefb1b9f47692820a710062ae5c84ccd6a493ac7e29de9e574b1764", kill_on_drop: false }`
[INFO] [stdout] e59c5e7efaefb1b9f47692820a710062ae5c84ccd6a493ac7e29de9e574b1764
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 57d7525fee40b3fd5482e7aa0064070e628e9b99c30c07a397d8607714da1f72
[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" "57d7525fee40b3fd5482e7aa0064070e628e9b99c30c07a397d8607714da1f72", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-macro-await-preview v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "57d7525fee40b3fd5482e7aa0064070e628e9b99c30c07a397d8607714da1f72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57d7525fee40b3fd5482e7aa0064070e628e9b99c30c07a397d8607714da1f72", kill_on_drop: false }`
[INFO] [stdout] 57d7525fee40b3fd5482e7aa0064070e628e9b99c30c07a397d8607714da1f72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2021-01-01" "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] 3ffd3f1ee8ff6a3f7c7a4c63dc26f0d1ac8dfa3f41490d5be53b3d7f642345c8
[INFO] running `Command { std: "docker" "start" "-a" "3ffd3f1ee8ff6a3f7c7a4c63dc26f0d1ac8dfa3f41490d5be53b3d7f642345c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-macro-await-preview v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "3ffd3f1ee8ff6a3f7c7a4c63dc26f0d1ac8dfa3f41490d5be53b3d7f642345c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ffd3f1ee8ff6a3f7c7a4c63dc26f0d1ac8dfa3f41490d5be53b3d7f642345c8", kill_on_drop: false }`
[INFO] [stdout] 3ffd3f1ee8ff6a3f7c7a4c63dc26f0d1ac8dfa3f41490d5be53b3d7f642345c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e9630c297a5fd9ecfe8453ddcc19ee6027eb90a83fe1178b40e32269b651b9fd
[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" "e9630c297a5fd9ecfe8453ddcc19ee6027eb90a83fe1178b40e32269b651b9fd", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/futures_macro_await-b104126c2bee8dcb
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests futures_macro_await
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - await (line 17) ... ignored
[INFO] [stdout] test src/lib.rs - await_item (line 78) ... ignored
[INFO] [stdout] test src/lib.rs - stream_yield (line 127) ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 3 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e9630c297a5fd9ecfe8453ddcc19ee6027eb90a83fe1178b40e32269b651b9fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9630c297a5fd9ecfe8453ddcc19ee6027eb90a83fe1178b40e32269b651b9fd", kill_on_drop: false }`
[INFO] [stdout] e9630c297a5fd9ecfe8453ddcc19ee6027eb90a83fe1178b40e32269b651b9fd