[INFO] crate libp2p-mplex 0.20.0 is already in cache
[INFO] testing libp2p-mplex-0.20.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate libp2p-mplex 0.20.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate libp2p-mplex 0.20.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libp2p-mplex 0.20.0
[INFO] finished tweaking crates.io crate libp2p-mplex 0.20.0
[INFO] tweaked toml for crates.io crate libp2p-mplex 0.20.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ea344904d4d681c7e154274cd3533e8a1a4c87fed69bffddf34b86fea4584364
[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" "ea344904d4d681c7e154274cd3533e8a1a4c87fed69bffddf34b86fea4584364", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea344904d4d681c7e154274cd3533e8a1a4c87fed69bffddf34b86fea4584364", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea344904d4d681c7e154274cd3533e8a1a4c87fed69bffddf34b86fea4584364", kill_on_drop: false }`
[INFO] [stdout] ea344904d4d681c7e154274cd3533e8a1a4c87fed69bffddf34b86fea4584364
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8fda6d5569885a9af91afc9ffe5687fad670402f49f80d8bec6a62e9770acf94
[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" "8fda6d5569885a9af91afc9ffe5687fad670402f49f80d8bec6a62e9770acf94", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures_codec v0.4.1
[INFO] [stderr]    Compiling unsigned-varint v0.4.0
[INFO] [stderr]    Compiling multistream-select v0.8.2
[INFO] [stderr]    Compiling parity-multiaddr v0.9.1
[INFO] [stderr]    Compiling libp2p-core v0.20.1
[INFO] [stderr]    Compiling libp2p-mplex v0.20.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.84s
[INFO] running `Command { std: "docker" "inspect" "8fda6d5569885a9af91afc9ffe5687fad670402f49f80d8bec6a62e9770acf94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fda6d5569885a9af91afc9ffe5687fad670402f49f80d8bec6a62e9770acf94", kill_on_drop: false }`
[INFO] [stdout] 8fda6d5569885a9af91afc9ffe5687fad670402f49f80d8bec6a62e9770acf94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e695243eb27556f664d65ca205d92884fec97164d137e10591e39eb60f8ae2e7
[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" "e695243eb27556f664d65ca205d92884fec97164d137e10591e39eb60f8ae2e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libp2p-mplex v0.20.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `libp2p_tcp`
[INFO] [stdout]   --> tests/two_peers.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | use libp2p_tcp::TcpConfig;
[INFO] [stdout]    |     ^^^^^^^^^^ use of undeclared type or module `libp2p_tcp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `libp2p_tcp`
[INFO] [stdout]   --> tests/async_write.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | use libp2p_tcp::TcpConfig;
[INFO] [stdout]    |     ^^^^^^^^^^ use of undeclared type or module `libp2p_tcp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `clone` found for struct `std::sync::Arc<_>` in the current scope
[INFO] [stdout]   --> tests/two_peers.rs:70:69
[INFO] [stdout]    |
[INFO] [stdout] 70 |             if let Some(s) = muxing::event_from_ref_and_wrap(client.clone()).await.unwrap()
[INFO] [stdout]    |                                                                     ^^^^^ method not found in `std::sync::Arc<_>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `client` is a function, perhaps you wish to call it
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `clone` found for struct `std::sync::Arc<_>` in the current scope
[INFO] [stdout]   --> tests/async_write.rs:70:69
[INFO] [stdout]    |
[INFO] [stdout] 70 |             if let Some(s) = muxing::event_from_ref_and_wrap(client.clone()).await.unwrap()
[INFO] [stdout]    |                                                                     ^^^^^ method not found in `std::sync::Arc<_>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `client` is a function, perhaps you wish to call it
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Transport`
[INFO] [stdout]   --> tests/async_write.rs:21:36
[INFO] [stdout]    |
[INFO] [stdout] 21 | use libp2p_core::{muxing, upgrade, Transport};
[INFO] [stdout]    |                                    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `clone` found for struct `std::sync::Arc<_>` in the current scope
[INFO] [stdout]    --> tests/two_peers.rs:113:69
[INFO] [stdout]     |
[INFO] [stdout] 113 |             if let Some(s) = muxing::event_from_ref_and_wrap(client.clone()).await.unwrap()
[INFO] [stdout]     |                                                                     ^^^^^ method not found in `std::sync::Arc<_>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `client` is a function, perhaps you wish to call it
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libp2p-mplex`.
[INFO] [stdout] warning: unused import: `Transport`
[INFO] [stdout]   --> tests/two_peers.rs:21:36
[INFO] [stdout]    |
[INFO] [stdout] 21 | use libp2p_core::{muxing, upgrade, Transport};
[INFO] [stdout]    |                                    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 3 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e695243eb27556f664d65ca205d92884fec97164d137e10591e39eb60f8ae2e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e695243eb27556f664d65ca205d92884fec97164d137e10591e39eb60f8ae2e7", kill_on_drop: false }`
[INFO] [stdout] e695243eb27556f664d65ca205d92884fec97164d137e10591e39eb60f8ae2e7