[INFO] fetching crate streamify 0.1.0...
[INFO] checking streamify-0.1.0 against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] extracting crate streamify 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate streamify 0.1.0 on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 25ae3ca890d3b9f7af8bbf71d002d524a00a989feb4d9f85176daee737b0290b
[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" "25ae3ca890d3b9f7af8bbf71d002d524a00a989feb4d9f85176daee737b0290b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25ae3ca890d3b9f7af8bbf71d002d524a00a989feb4d9f85176daee737b0290b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25ae3ca890d3b9f7af8bbf71d002d524a00a989feb4d9f85176daee737b0290b", kill_on_drop: false }`
[INFO] [stdout] 25ae3ca890d3b9f7af8bbf71d002d524a00a989feb4d9f85176daee737b0290b
[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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 57112c922c2df2b394208623c90683925535b0282fbfed4d3db6e0587e295c1d
[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" "57112c922c2df2b394208623c90683925535b0282fbfed4d3db6e0587e295c1d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling futures-core v0.3.16
[INFO] [stderr]     Checking 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 dev [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `Command { std: "docker" "inspect" "57112c922c2df2b394208623c90683925535b0282fbfed4d3db6e0587e295c1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57112c922c2df2b394208623c90683925535b0282fbfed4d3db6e0587e295c1d", kill_on_drop: false }`
[INFO] [stdout] 57112c922c2df2b394208623c90683925535b0282fbfed4d3db6e0587e295c1d