[INFO] fetching crate streamify 0.1.0...
[INFO] testing streamify-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate streamify 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate streamify 0.1.0 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 streamify 0.1.0
[INFO] finished tweaking crates.io crate streamify 0.1.0
[INFO] tweaked toml for crates.io crate streamify 0.1.0 written to /workspace/builds/worker-7/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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a3548ba5c3311274fa91adac8f4d0cd12646b0e5561b2b83218318fda7cd8be
[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" "4a3548ba5c3311274fa91adac8f4d0cd12646b0e5561b2b83218318fda7cd8be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a3548ba5c3311274fa91adac8f4d0cd12646b0e5561b2b83218318fda7cd8be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a3548ba5c3311274fa91adac8f4d0cd12646b0e5561b2b83218318fda7cd8be", kill_on_drop: false }`
[INFO] [stdout] 4a3548ba5c3311274fa91adac8f4d0cd12646b0e5561b2b83218318fda7cd8be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f036864f766e9fa36d8c0f0d6922bf8783b73a0dbe2f000ed0312c69dffe696
[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" "5f036864f766e9fa36d8c0f0d6922bf8783b73a0dbe2f000ed0312c69dffe696", kill_on_drop: false }`
[INFO] [stderr]    Compiling streamify v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `Command { std: "docker" "inspect" "5f036864f766e9fa36d8c0f0d6922bf8783b73a0dbe2f000ed0312c69dffe696", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f036864f766e9fa36d8c0f0d6922bf8783b73a0dbe2f000ed0312c69dffe696", kill_on_drop: false }`
[INFO] [stdout] 5f036864f766e9fa36d8c0f0d6922bf8783b73a0dbe2f000ed0312c69dffe696
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 89a379435e56f3006b1397fbfb9d9fc76336e71a61d69533d8ed96d669c215a1
[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" "89a379435e56f3006b1397fbfb9d9fc76336e71a61d69533d8ed96d669c215a1", kill_on_drop: false }`
[INFO] [stderr]    Compiling streamify v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `stream`
[INFO] [stdout]  --> tests/streamify.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 |   let stream = streamify::from_future(fut);
[INFO] [stdout]   |       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stream`
[INFO] [stdout]   --> tests/streamify.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 |   let stream = streamify::from_any(val);
[INFO] [stdout]    |       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stream`
[INFO] [stdout]   --> tests/streamify.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 |   let stream = streamify::from_any(val);
[INFO] [stdout]    |       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.55s
[INFO] running `Command { std: "docker" "inspect" "89a379435e56f3006b1397fbfb9d9fc76336e71a61d69533d8ed96d669c215a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89a379435e56f3006b1397fbfb9d9fc76336e71a61d69533d8ed96d669c215a1", kill_on_drop: false }`
[INFO] [stdout] 89a379435e56f3006b1397fbfb9d9fc76336e71a61d69533d8ed96d669c215a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.49.0" "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] 5dea79323cc7aec662b2af326b6205aeedab7682db7325630740d547f3a5e6bd
[INFO] running `Command { std: "docker" "start" "-a" "5dea79323cc7aec662b2af326b6205aeedab7682db7325630740d547f3a5e6bd", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused variable: `stream`
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> tests/streamify.rs:6:7
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr] 6 |   let stream = streamify::from_future(fut);
[INFO] [stdout] 
[INFO] [stderr]   |       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream`
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] running 2 tests
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `stream`
[INFO] [stderr]   --> tests/streamify.rs:12:7
[INFO] [stderr]    |
[INFO] [stderr] 12 |   let stream = streamify::from_any(val);
[INFO] [stderr]    |       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `stream`
[INFO] [stderr]   --> tests/streamify.rs:15:7
[INFO] [stderr]    |
[INFO] [stderr] 15 |   let stream = streamify::from_any(val);
[INFO] [stderr]    |       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream`
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/streamify-1d0e8188ae008138
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/streamify-69a48692dfc1f8c9
[INFO] [stdout] test streamify_a_future ... ok
[INFO] [stderr]    Doc-tests streamify
[INFO] [stdout] test streamify_any_value ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5dea79323cc7aec662b2af326b6205aeedab7682db7325630740d547f3a5e6bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5dea79323cc7aec662b2af326b6205aeedab7682db7325630740d547f3a5e6bd", kill_on_drop: false }`
[INFO] [stdout] 5dea79323cc7aec662b2af326b6205aeedab7682db7325630740d547f3a5e6bd