[INFO] fetching crate futures-test-preview 0.3.0-alpha.19...
[INFO] building futures-test-preview-0.3.0-alpha.19 against master#d5c88c22807925c189328ef9d923c5d2b11a95b8 for pr-87066-3
[INFO] extracting crate futures-test-preview 0.3.0-alpha.19 into /workspace/builds/worker-44/source
[INFO] validating manifest of crates.io crate futures-test-preview 0.3.0-alpha.19 on toolchain d5c88c22807925c189328ef9d923c5d2b11a95b8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "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-44/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a4c5a319d3b808f40095087d7dd71351391f830320a3fd13afd59991b84b1245
[INFO] running `Command { std: "docker" "start" "-a" "a4c5a319d3b808f40095087d7dd71351391f830320a3fd13afd59991b84b1245", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4c5a319d3b808f40095087d7dd71351391f830320a3fd13afd59991b84b1245", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4c5a319d3b808f40095087d7dd71351391f830320a3fd13afd59991b84b1245", kill_on_drop: false }`
[INFO] [stdout] a4c5a319d3b808f40095087d7dd71351391f830320a3fd13afd59991b84b1245
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 588ce26327629fd43c5f8899844d8d6d70aa03bd66c53e009fd9cdd5715e32f0
[INFO] running `Command { std: "docker" "start" "-a" "588ce26327629fd43c5f8899844d8d6d70aa03bd66c53e009fd9cdd5715e32f0", kill_on_drop: false }`
[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 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 3.77s
[INFO] running `Command { std: "docker" "inspect" "588ce26327629fd43c5f8899844d8d6d70aa03bd66c53e009fd9cdd5715e32f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "588ce26327629fd43c5f8899844d8d6d70aa03bd66c53e009fd9cdd5715e32f0", kill_on_drop: false }`
[INFO] [stdout] 588ce26327629fd43c5f8899844d8d6d70aa03bd66c53e009fd9cdd5715e32f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] acdd4cb6de4426f2c1e310b451d46c1db1b67e1634fba44b430abc77ec577ea7
[INFO] running `Command { std: "docker" "start" "-a" "acdd4cb6de4426f2c1e310b451d46c1db1b67e1634fba44b430abc77ec577ea7", kill_on_drop: false }`
[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 0.76s
[INFO] running `Command { std: "docker" "inspect" "acdd4cb6de4426f2c1e310b451d46c1db1b67e1634fba44b430abc77ec577ea7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acdd4cb6de4426f2c1e310b451d46c1db1b67e1634fba44b430abc77ec577ea7", kill_on_drop: false }`
[INFO] [stdout] acdd4cb6de4426f2c1e310b451d46c1db1b67e1634fba44b430abc77ec577ea7