[INFO] fetching crate streaming-iterator 0.1.5...
[INFO] testing streaming-iterator-0.1.5 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate streaming-iterator 0.1.5 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate streaming-iterator 0.1.5 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 streaming-iterator 0.1.5
[INFO] finished tweaking crates.io crate streaming-iterator 0.1.5
[INFO] tweaked toml for crates.io crate streaming-iterator 0.1.5 written to /workspace/builds/worker-5/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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0a6c1fefe8738849653b59e57b39c513d509228b002ac1c1d96d6522fd2dd7a8
[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" "0a6c1fefe8738849653b59e57b39c513d509228b002ac1c1d96d6522fd2dd7a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a6c1fefe8738849653b59e57b39c513d509228b002ac1c1d96d6522fd2dd7a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a6c1fefe8738849653b59e57b39c513d509228b002ac1c1d96d6522fd2dd7a8", kill_on_drop: false }`
[INFO] [stdout] 0a6c1fefe8738849653b59e57b39c513d509228b002ac1c1d96d6522fd2dd7a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] f5b789dd9bfe455788463d7bcdc5f5fe0b9ce789d916e7eab54ad05b6463dec4
[INFO] running `Command { std: "docker" "start" "-a" "f5b789dd9bfe455788463d7bcdc5f5fe0b9ce789d916e7eab54ad05b6463dec4", kill_on_drop: false }`
[INFO] [stderr]    Compiling streaming-iterator v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "f5b789dd9bfe455788463d7bcdc5f5fe0b9ce789d916e7eab54ad05b6463dec4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5b789dd9bfe455788463d7bcdc5f5fe0b9ce789d916e7eab54ad05b6463dec4", kill_on_drop: false }`
[INFO] [stdout] f5b789dd9bfe455788463d7bcdc5f5fe0b9ce789d916e7eab54ad05b6463dec4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed550d69252b4507caaa997c173238800857cf54a8feadaf2618d0918d963bcf
[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" "ed550d69252b4507caaa997c173238800857cf54a8feadaf2618d0918d963bcf", kill_on_drop: false }`
[INFO] [stderr]    Compiling streaming-iterator v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2099:28
[INFO] [stdout]      |
[INFO] [stdout] 2099 |     fn _is_object_safe(_: &StreamingIterator<Item = ()>) {}
[INFO] [stdout]      |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn StreamingIterator<Item = ()>`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.04s
[INFO] running `Command { std: "docker" "inspect" "ed550d69252b4507caaa997c173238800857cf54a8feadaf2618d0918d963bcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed550d69252b4507caaa997c173238800857cf54a8feadaf2618d0918d963bcf", kill_on_drop: false }`
[INFO] [stdout] ed550d69252b4507caaa997c173238800857cf54a8feadaf2618d0918d963bcf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 61c2184c7e3f972eae30c8035f70a4df8fb40b473184aea91428a5199880242d
[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" "61c2184c7e3f972eae30c8035f70a4df8fb40b473184aea91428a5199880242d", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout] running 31 tests
[INFO] [stderr]     --> src/lib.rs:2099:28
[INFO] [stderr]      |
[INFO] [stderr] 2099 |     fn _is_object_safe(_: &StreamingIterator<Item = ()>) {}
[INFO] [stderr]      |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn StreamingIterator<Item = ()>`
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/streaming_iterator-95ab41fb9c9971b5
[INFO] [stdout] test test::for_each_rev ... ok
[INFO] [stdout] test test::fold ... ok
[INFO] [stdout] test test::find ... ok
[INFO] [stdout] test test::count ... ok
[INFO] [stdout] test test::empty_iterator ... ok
[INFO] [stdout] test test::flat_map ... ok
[INFO] [stdout] test test::filter_map_deref ... ok
[INFO] [stdout] test test::all ... ok
[INFO] [stdout] test test::any ... ok
[INFO] [stdout] test test::cloned ... ok
[INFO] [stdout] test test::fuse ... ok
[INFO] [stdout] test test::filter_map ... ok
[INFO] [stdout] test test::filter ... ok
[INFO] [stdout] test test::for_each ... ok
[INFO] [stdout] test test::position ... ok
[INFO] [stdout] test test::nth ... ok
[INFO] [stdout] test test::map_ref ... ok
[INFO] [stdout] test test::map_deref ... ok
[INFO] [stdout] test test::rev ... ok
[INFO] [stdout] test test::rfold ... ok
[INFO] [stdout] test test::map ... ok
[INFO] [stdout] test test::take ... ok
[INFO] [stdout] test test::skip_while ... ok
[INFO] [stdout] test test::skip ... ok
[INFO] [stdout] test test::inspect ... ok
[INFO] [stdout] test test::test_chain ... ok
[INFO] [stdout] test test::test_convert ... ok
[INFO] [stdout] test test::test_convert_ref ... ok
[INFO] [stdout] test test::test_chain_mixed ... ok
[INFO] [stdout] test test::test_chain_back ... ok
[INFO] [stdout] test test::take_while ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 31 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests streaming-iterator
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - (line 12) ... ignored
[INFO] [stdout] test src/lib.rs - (line 22) ... ok
[INFO] [stdout] test src/lib.rs - convert (line 512) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.75s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "61c2184c7e3f972eae30c8035f70a4df8fb40b473184aea91428a5199880242d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61c2184c7e3f972eae30c8035f70a4df8fb40b473184aea91428a5199880242d", kill_on_drop: false }`
[INFO] [stdout] 61c2184c7e3f972eae30c8035f70a4df8fb40b473184aea91428a5199880242d