[INFO] fetching crate roa-tcp 0.5.0-rc...
[INFO] testing roa-tcp-0.5.0-rc against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate roa-tcp 0.5.0-rc into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate roa-tcp 0.5.0-rc 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 roa-tcp 0.5.0-rc
[INFO] finished tweaking crates.io crate roa-tcp 0.5.0-rc
[INFO] tweaked toml for crates.io crate roa-tcp 0.5.0-rc written to /workspace/builds/worker-1/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] [stderr]     Blocking waiting for file lock on package cache
[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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] d2e6bdce92d8af9de1aae3caa444fc652b98b089024043a445eb9d90a8dd6336
[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" "d2e6bdce92d8af9de1aae3caa444fc652b98b089024043a445eb9d90a8dd6336", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d2e6bdce92d8af9de1aae3caa444fc652b98b089024043a445eb9d90a8dd6336", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2e6bdce92d8af9de1aae3caa444fc652b98b089024043a445eb9d90a8dd6336", kill_on_drop: false }`
[INFO] [stdout] d2e6bdce92d8af9de1aae3caa444fc652b98b089024043a445eb9d90a8dd6336
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 3e1bef3e6613534f6d50cb033f348380b3697eb8438f975849b5878067aa1dab
[INFO] running `Command { std: "docker" "start" "-a" "3e1bef3e6613534f6d50cb033f348380b3697eb8438f975849b5878067aa1dab", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling futures-io v0.3.8
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling cache-padded v1.1.1
[INFO] [stderr]    Compiling parking v2.0.0
[INFO] [stderr]    Compiling fastrand v1.4.0
[INFO] [stderr]    Compiling waker-fn v1.1.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling event-listener v2.5.1
[INFO] [stderr]    Compiling vec-arena v1.0.0
[INFO] [stderr]    Compiling async-task v4.0.3
[INFO] [stderr]    Compiling atomic-waker v1.0.0
[INFO] [stderr]    Compiling futures-timer v3.0.2
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling futures-channel v0.3.8
[INFO] [stderr]    Compiling futures-task v0.3.8
[INFO] [stderr]    Compiling concurrent-queue v1.2.2
[INFO] [stderr]    Compiling signal-hook-registry v1.3.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling nb-connect v1.0.2
[INFO] [stderr]    Compiling async-mutex v1.4.0
[INFO] [stderr]    Compiling futures-lite v1.11.3
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling async-trait v0.1.42
[INFO] [stderr]    Compiling async-channel v1.5.1
[INFO] [stderr]    Compiling signal-hook v0.1.17
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling polling v2.0.2
[INFO] [stderr]    Compiling tracing v0.1.22
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling tracing-futures v0.2.4
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling async-io v1.3.1
[INFO] [stderr]    Compiling async-executor v1.4.0
[INFO] [stderr]    Compiling blocking v1.0.2
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling tokio v0.2.24
[INFO] [stderr]    Compiling async-global-executor v1.4.3
[INFO] [stderr]    Compiling async-process v1.0.1
[INFO] [stderr]    Compiling async-std v1.8.0
[INFO] [stderr]    Compiling futures-util v0.3.8
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling futures-executor v0.3.8
[INFO] [stderr]    Compiling h2 v0.2.7
[INFO] [stderr]    Compiling futures v0.3.8
[INFO] [stderr]    Compiling hyper v0.13.9
[INFO] [stderr]    Compiling roa-core v0.5.0
[INFO] [stderr]    Compiling roa-tcp v0.5.0-rc (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: the trait bound `WrapStream<async_std::net::TcpStream>: futures::AsyncRead` is not satisfied
[INFO] [stdout]   --> src/listen.rs:61:30
[INFO] [stdout]    |
[INFO] [stdout] 61 |         Ok((local_addr, self.accept(incoming)))
[INFO] [stdout]    |                              ^^^^^^ the trait `futures::AsyncRead` is not implemented for `WrapStream<async_std::net::TcpStream>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `WrapStream<async_std::net::TcpStream>: futures::AsyncWrite` is not satisfied
[INFO] [stdout]   --> src/listen.rs:61:30
[INFO] [stdout]    |
[INFO] [stdout] 61 |         Ok((local_addr, self.accept(incoming)))
[INFO] [stdout]    |                              ^^^^^^ the trait `futures::AsyncWrite` is not implemented for `WrapStream<async_std::net::TcpStream>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `roa-tcp`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "3e1bef3e6613534f6d50cb033f348380b3697eb8438f975849b5878067aa1dab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e1bef3e6613534f6d50cb033f348380b3697eb8438f975849b5878067aa1dab", kill_on_drop: false }`
[INFO] [stdout] 3e1bef3e6613534f6d50cb033f348380b3697eb8438f975849b5878067aa1dab