[INFO] fetching crate mdo-future 0.2.0...
[INFO] checking mdo-future-0.2.0 against try#8b72f65b805cbe4c261de45030d663f524f27376 for pr-78991
[INFO] extracting crate mdo-future 0.2.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate mdo-future 0.2.0 on toolchain 8b72f65b805cbe4c261de45030d663f524f27376
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mdo-future 0.2.0
[INFO] finished tweaking crates.io crate mdo-future 0.2.0
[INFO] tweaked toml for crates.io crate mdo-future 0.2.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mdo v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0dedd2054055d5ff21808ddbdae5ac13b4738fcf69678f126f628ea1e7eaa099
[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" "0dedd2054055d5ff21808ddbdae5ac13b4738fcf69678f126f628ea1e7eaa099", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0dedd2054055d5ff21808ddbdae5ac13b4738fcf69678f126f628ea1e7eaa099", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dedd2054055d5ff21808ddbdae5ac13b4738fcf69678f126f628ea1e7eaa099", kill_on_drop: false }`
[INFO] [stdout] 0dedd2054055d5ff21808ddbdae5ac13b4738fcf69678f126f628ea1e7eaa099
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "check" "--frozen" "--all" "--all-targets" "--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] 81c5b949d0210a4540d65bbb97556ed5c478ebe20c40be9f9d9470952405c7a1
[INFO] running `Command { std: "docker" "start" "-a" "81c5b949d0210a4540d65bbb97556ed5c478ebe20c40be9f9d9470952405c7a1", kill_on_drop: false }`
[INFO] [stderr]     Checking mdo v0.3.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking mdo-future v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stdout] warning: use of deprecated type alias `futures::stream::BoxStream`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]    --> src/lib.rs:161:46
[INFO] [stdout]     |
[INFO] [stdout] 161 |     fn stream_range(start: u32, end: u32) -> stream::BoxStream<u32, String> {
[INFO] [stdout]     |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `futures::stream::iter`: implementation moved to `iter_ok` and `iter_result`
[INFO] [stdout]    --> src/lib.rs:162:9
[INFO] [stdout]     |
[INFO] [stdout] 162 |         stream::iter((start..end).map(Ok::<u32, String>)).boxed()
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `futures::Stream::boxed`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]    --> src/lib.rs:162:59
[INFO] [stdout]     |
[INFO] [stdout] 162 |         stream::iter((start..end).map(Ok::<u32, String>)).boxed()
[INFO] [stdout]     |                                                           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.61s
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "81c5b949d0210a4540d65bbb97556ed5c478ebe20c40be9f9d9470952405c7a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81c5b949d0210a4540d65bbb97556ed5c478ebe20c40be9f9d9470952405c7a1", kill_on_drop: false }`
[INFO] [stdout] 81c5b949d0210a4540d65bbb97556ed5c478ebe20c40be9f9d9470952405c7a1