[INFO] fetching crate futures-macro-async-preview 0.2.2...
[INFO] checking futures-macro-async-preview-0.2.2 against beta-2021-10-15 for beta-1.56-3
[INFO] extracting crate futures-macro-async-preview 0.2.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate futures-macro-async-preview 0.2.2 on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate futures-macro-async-preview 0.2.2
[INFO] finished tweaking crates.io crate futures-macro-async-preview 0.2.2
[INFO] tweaked toml for crates.io crate futures-macro-async-preview 0.2.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 593c32fb7bc2a74b4f19c57744ebd6f18d10f6777b8948993a97c6e1280b6ee4
[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" "593c32fb7bc2a74b4f19c57744ebd6f18d10f6777b8948993a97c6e1280b6ee4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "593c32fb7bc2a74b4f19c57744ebd6f18d10f6777b8948993a97c6e1280b6ee4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "593c32fb7bc2a74b4f19c57744ebd6f18d10f6777b8948993a97c6e1280b6ee4", kill_on_drop: false }`
[INFO] [stdout] 593c32fb7bc2a74b4f19c57744ebd6f18d10f6777b8948993a97c6e1280b6ee4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8b6151a35fc3180498669f175bc8bfcd554496c920fb78f7e24d107f3243940
[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" "b8b6151a35fc3180498669f175bc8bfcd554496c920fb78f7e24d107f3243940", kill_on_drop: false }`
[INFO] [stderr]     Checking syn v0.14.9
[INFO] [stderr]     Checking futures-macro-async-preview v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.16s
[INFO] running `Command { std: "docker" "inspect" "b8b6151a35fc3180498669f175bc8bfcd554496c920fb78f7e24d107f3243940", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8b6151a35fc3180498669f175bc8bfcd554496c920fb78f7e24d107f3243940", kill_on_drop: false }`
[INFO] [stdout] b8b6151a35fc3180498669f175bc8bfcd554496c920fb78f7e24d107f3243940
