[INFO] fetching crate stream-flatten-iters 0.2.0...
[INFO] testing stream-flatten-iters-0.2.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate stream-flatten-iters 0.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate stream-flatten-iters 0.2.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stream-flatten-iters 0.2.0
[INFO] finished tweaking crates.io crate stream-flatten-iters 0.2.0
[INFO] tweaked toml for crates.io crate stream-flatten-iters 0.2.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2473faa56434a9eb2fddbe6d774cf6fc68f3f8608e221482cc55482ad88d2b00
[INFO] running `Command { std: "docker" "start" "-a" "2473faa56434a9eb2fddbe6d774cf6fc68f3f8608e221482cc55482ad88d2b00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2473faa56434a9eb2fddbe6d774cf6fc68f3f8608e221482cc55482ad88d2b00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2473faa56434a9eb2fddbe6d774cf6fc68f3f8608e221482cc55482ad88d2b00", kill_on_drop: false }`
[INFO] [stdout] 2473faa56434a9eb2fddbe6d774cf6fc68f3f8608e221482cc55482ad88d2b00
[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-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6357d2585e174f5b61f000d486dcb43855e4659b41ca8fe3275ceda19eed2806
[INFO] running `Command { std: "docker" "start" "-a" "6357d2585e174f5b61f000d486dcb43855e4659b41ca8fe3275ceda19eed2806", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling pin-project-internal v0.4.28
[INFO] [stderr]    Compiling pin-project v0.4.28
[INFO] [stderr]    Compiling stream-flatten-iters v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `project`: consider naming projected type by passing `project` argument to #[pin_project] attribute instead, see release note <https://github.com/taiki-e/pin-project/releases/tag/v0.4.21> for details
[INFO] [stdout]   --> src/try_flatten_iters.rs:99:7
[INFO] [stdout]    |
[INFO] [stdout] 99 |     #[project]
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.94s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6357d2585e174f5b61f000d486dcb43855e4659b41ca8fe3275ceda19eed2806", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6357d2585e174f5b61f000d486dcb43855e4659b41ca8fe3275ceda19eed2806", kill_on_drop: false }`
[INFO] [stdout] 6357d2585e174f5b61f000d486dcb43855e4659b41ca8fe3275ceda19eed2806
[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-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f2ee6a524b3f0787a75366b9111ee51b6ae7f1be812ade7aa137117a9cc4238
[INFO] running `Command { std: "docker" "start" "-a" "0f2ee6a524b3f0787a75366b9111ee51b6ae7f1be812ade7aa137117a9cc4238", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stdout] warning: use of deprecated macro `project`: consider naming projected type by passing `project` argument to #[pin_project] attribute instead, see release note <https://github.com/taiki-e/pin-project/releases/tag/v0.4.21> for details
[INFO] [stdout]   --> src/try_flatten_iters.rs:99:7
[INFO] [stdout]    |
[INFO] [stdout] 99 |     #[project]
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling futures-executor v0.3.17
[INFO] [stderr]    Compiling futures v0.3.17
[INFO] [stderr]    Compiling stream-flatten-iters v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `project`: consider naming projected type by passing `project` argument to #[pin_project] attribute instead, see release note <https://github.com/taiki-e/pin-project/releases/tag/v0.4.21> for details
[INFO] [stdout]   --> src/try_flatten_iters.rs:99:7
[INFO] [stdout]    |
[INFO] [stdout] 99 |     #[project]
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` 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 8.73s
[INFO] running `Command { std: "docker" "inspect" "0f2ee6a524b3f0787a75366b9111ee51b6ae7f1be812ade7aa137117a9cc4238", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f2ee6a524b3f0787a75366b9111ee51b6ae7f1be812ade7aa137117a9cc4238", kill_on_drop: false }`
[INFO] [stdout] 0f2ee6a524b3f0787a75366b9111ee51b6ae7f1be812ade7aa137117a9cc4238
[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-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 45a163e438513fbd99222702307f416a6a0fecd542f756c953643b1d00c8cba1
[INFO] running `Command { std: "docker" "start" "-a" "45a163e438513fbd99222702307f416a6a0fecd542f756c953643b1d00c8cba1", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated macro `project`: consider naming projected type by passing `project` argument to #[pin_project] attribute instead, see release note <https://github.com/taiki-e/pin-project/releases/tag/v0.4.21> for details
[INFO] [stderr]   --> src/try_flatten_iters.rs:99:7
[INFO] [stderr]    |
[INFO] [stderr] 99 |     #[project]
[INFO] [stderr]    |       ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `stream-flatten-iters` (lib) generated 1 warning
[INFO] [stderr] warning: `stream-flatten-iters` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/stream_flatten_iters-474a88ee207f7d2d)
[INFO] [stdout] running 6 tests
[INFO] [stdout] test try_flatten_iters::tests::test_error_with_collect ... ok
[INFO] [stdout] test try_flatten_iters::tests::test_empty ... ok
[INFO] [stderr]    Doc-tests stream-flatten-iters
[INFO] [stdout] test try_flatten_iters::tests::test_error ... ok
[INFO] [stdout] test flatten_iters::tests::test_empty ... ok
[INFO] [stdout] test flatten_iters::tests::test_basic ... ok
[INFO] [stdout] test try_flatten_iters::tests::test_basic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - (line 9) ... ok
[INFO] [stdout] test src/lib.rs - (line 83) ... ok
[INFO] [stdout] test src/lib.rs - (line 46) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.55s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "45a163e438513fbd99222702307f416a6a0fecd542f756c953643b1d00c8cba1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45a163e438513fbd99222702307f416a6a0fecd542f756c953643b1d00c8cba1", kill_on_drop: false }`
[INFO] [stdout] 45a163e438513fbd99222702307f416a6a0fecd542f756c953643b1d00c8cba1