[INFO] fetching crate advancedresearch-higher_order_core 0.3.0...
[INFO] testing advancedresearch-higher_order_core-0.3.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate advancedresearch-higher_order_core 0.3.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate advancedresearch-higher_order_core 0.3.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate advancedresearch-higher_order_core 0.3.0
[INFO] finished tweaking crates.io crate advancedresearch-higher_order_core 0.3.0
[INFO] tweaked toml for crates.io crate advancedresearch-higher_order_core 0.3.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 669948c4c61f29f41ccd66f28d0048fc7f2eef0d941f510a817a2e4daef5f647
[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" "669948c4c61f29f41ccd66f28d0048fc7f2eef0d941f510a817a2e4daef5f647", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "669948c4c61f29f41ccd66f28d0048fc7f2eef0d941f510a817a2e4daef5f647", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "669948c4c61f29f41ccd66f28d0048fc7f2eef0d941f510a817a2e4daef5f647", kill_on_drop: false }`
[INFO] [stdout] 669948c4c61f29f41ccd66f28d0048fc7f2eef0d941f510a817a2e4daef5f647
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f9edc3b7f923d68bb3f7fe18d88671428d5ffcb2488462bc8236b301553dae34
[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" "f9edc3b7f923d68bb3f7fe18d88671428d5ffcb2488462bc8236b301553dae34", kill_on_drop: false }`
[INFO] [stderr]    Compiling advancedresearch-higher_order_core v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "f9edc3b7f923d68bb3f7fe18d88671428d5ffcb2488462bc8236b301553dae34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9edc3b7f923d68bb3f7fe18d88671428d5ffcb2488462bc8236b301553dae34", kill_on_drop: false }`
[INFO] [stdout] f9edc3b7f923d68bb3f7fe18d88671428d5ffcb2488462bc8236b301553dae34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 666ea3d3369e8379493240dcd7e13252695ec015f9f9c008b6fd2d458bece108
[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" "666ea3d3369e8379493240dcd7e13252695ec015f9f9c008b6fd2d458bece108", kill_on_drop: false }`
[INFO] [stderr]    Compiling advancedresearch-higher_order_core v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `Command { std: "docker" "inspect" "666ea3d3369e8379493240dcd7e13252695ec015f9f9c008b6fd2d458bece108", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "666ea3d3369e8379493240dcd7e13252695ec015f9f9c008b6fd2d458bece108", kill_on_drop: false }`
[INFO] [stdout] 666ea3d3369e8379493240dcd7e13252695ec015f9f9c008b6fd2d458bece108
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 34febf11a4fbdaea12f24e1cf3116dd58d8487455b51038a2a0884f202ff9f73
[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" "34febf11a4fbdaea12f24e1cf3116dd58d8487455b51038a2a0884f202ff9f73", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/higher_order_core-d89533c49020f6a0
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests higher_order_core
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - (line 190) ... ignored
[INFO] [stdout] test src/lib.rs - (line 199) ... ignored
[INFO] [stdout] test src/lib.rs - (line 76) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "34febf11a4fbdaea12f24e1cf3116dd58d8487455b51038a2a0884f202ff9f73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34febf11a4fbdaea12f24e1cf3116dd58d8487455b51038a2a0884f202ff9f73", kill_on_drop: false }`
[INFO] [stdout] 34febf11a4fbdaea12f24e1cf3116dd58d8487455b51038a2a0884f202ff9f73