[INFO] fetching crate future-union 0.1.1...
[INFO] testing future-union-0.1.1 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate future-union 0.1.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate future-union 0.1.1 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate future-union 0.1.1
[INFO] finished tweaking crates.io crate future-union 0.1.1
[INFO] tweaked toml for crates.io crate future-union 0.1.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eb23b290c960ae3b3d25db1863e6bdfe59d5e9081d095ec766c8da19851d6b4b
[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" "eb23b290c960ae3b3d25db1863e6bdfe59d5e9081d095ec766c8da19851d6b4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb23b290c960ae3b3d25db1863e6bdfe59d5e9081d095ec766c8da19851d6b4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb23b290c960ae3b3d25db1863e6bdfe59d5e9081d095ec766c8da19851d6b4b", kill_on_drop: false }`
[INFO] [stdout] eb23b290c960ae3b3d25db1863e6bdfe59d5e9081d095ec766c8da19851d6b4b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--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] 4ca59e9ee66bd384f87f5a623977148e51a803d7de7a2082e18988a51cc31017
[INFO] running `Command { std: "docker" "start" "-a" "4ca59e9ee66bd384f87f5a623977148e51a803d7de7a2082e18988a51cc31017", kill_on_drop: false }`
[INFO] [stderr]    Compiling future-union-impl v0.1.0
[INFO] [stderr]    Compiling future-union v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.28s
[INFO] running `Command { std: "docker" "inspect" "4ca59e9ee66bd384f87f5a623977148e51a803d7de7a2082e18988a51cc31017", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ca59e9ee66bd384f87f5a623977148e51a803d7de7a2082e18988a51cc31017", kill_on_drop: false }`
[INFO] [stdout] 4ca59e9ee66bd384f87f5a623977148e51a803d7de7a2082e18988a51cc31017
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "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] 20b4732b65382fea968f13ad27cab5073f245623fc95799f83aeeab6a6896063
[INFO] running `Command { std: "docker" "start" "-a" "20b4732b65382fea968f13ad27cab5073f245623fc95799f83aeeab6a6896063", kill_on_drop: false }`
[INFO] [stderr]    Compiling future-union v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.73s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/future_union-6f31bc8d70048497)
[INFO] running `Command { std: "docker" "inspect" "20b4732b65382fea968f13ad27cab5073f245623fc95799f83aeeab6a6896063", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20b4732b65382fea968f13ad27cab5073f245623fc95799f83aeeab6a6896063", kill_on_drop: false }`
[INFO] [stdout] 20b4732b65382fea968f13ad27cab5073f245623fc95799f83aeeab6a6896063
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", 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] 4af33289a30c79418989e3c169fc69d3ea77abbb67f2d9a72b2433f0dfd3823c
[INFO] running `Command { std: "docker" "start" "-a" "4af33289a30c79418989e3c169fc69d3ea77abbb67f2d9a72b2433f0dfd3823c", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/future_union-6f31bc8d70048497)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::demo_compiles ... ok
[INFO] [stdout] test tests::trees_as_expected ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests future-union
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 38) ... ignored
[INFO] [stdout] test src/lib.rs - (line 21) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.16s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4af33289a30c79418989e3c169fc69d3ea77abbb67f2d9a72b2433f0dfd3823c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4af33289a30c79418989e3c169fc69d3ea77abbb67f2d9a72b2433f0dfd3823c", kill_on_drop: false }`
[INFO] [stdout] 4af33289a30c79418989e3c169fc69d3ea77abbb67f2d9a72b2433f0dfd3823c