[INFO] fetching crate bitcoin-p2p 0.0.2...
[INFO] testing bitcoin-p2p-0.0.2 against 1.49.0 for beta-1.50-1
[INFO] extracting crate bitcoin-p2p 0.0.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate bitcoin-p2p 0.0.2 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 bitcoin-p2p 0.0.2
[INFO] finished tweaking crates.io crate bitcoin-p2p 0.0.2
[INFO] tweaked toml for crates.io crate bitcoin-p2p 0.0.2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate bitcoin-p2p 0.0.2 already has a lockfile, it will not be regenerated
[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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 93d8ec04477f71f56a89f74170d0202bb505b012993f6ca18416ea75e2c279be
[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" "93d8ec04477f71f56a89f74170d0202bb505b012993f6ca18416ea75e2c279be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93d8ec04477f71f56a89f74170d0202bb505b012993f6ca18416ea75e2c279be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93d8ec04477f71f56a89f74170d0202bb505b012993f6ca18416ea75e2c279be", kill_on_drop: false }`
[INFO] [stdout] 93d8ec04477f71f56a89f74170d0202bb505b012993f6ca18416ea75e2c279be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] c4154c05b3c6e0639161a2acc94a2753956703fbcba8a2d8dab92fb5b6aa7bcf
[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" "c4154c05b3c6e0639161a2acc94a2753956703fbcba8a2d8dab92fb5b6aa7bcf", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling cc v1.0.41
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling ahash v0.4.6
[INFO] [stderr]    Compiling bitcoin_hashes v0.9.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling lru v0.6.1
[INFO] [stderr]    Compiling secp256k1-sys v0.3.0
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling mio v0.7.5
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling secp256k1 v0.19.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rand_distr v0.3.0
[INFO] [stderr]    Compiling bitcoin v0.25.2
[INFO] [stderr]    Compiling bitcoin-p2p v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.57s
[INFO] running `Command { std: "docker" "inspect" "c4154c05b3c6e0639161a2acc94a2753956703fbcba8a2d8dab92fb5b6aa7bcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4154c05b3c6e0639161a2acc94a2753956703fbcba8a2d8dab92fb5b6aa7bcf", kill_on_drop: false }`
[INFO] [stdout] c4154c05b3c6e0639161a2acc94a2753956703fbcba8a2d8dab92fb5b6aa7bcf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d6e16af2bbbcc3173cd48d9e450e6db6357db0f17920069e9216ac1a36661cf1
[INFO] running `Command { std: "docker" "start" "-a" "d6e16af2bbbcc3173cd48d9e450e6db6357db0f17920069e9216ac1a36661cf1", kill_on_drop: false }`
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling fern v0.5.9
[INFO] [stderr]    Compiling bitcoin-p2p v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no function or associated item named `mpsc` found for trait object `dyn bitcoin_p2p::Listener` in the current scope
[INFO] [stdout]   --> examples/test.rs:40:44
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let receiver = p2p.add_listener(Listener::mpsc());
[INFO] [stdout]    |                                               ^^^^ function or associated item not found in `dyn bitcoin_p2p::Listener`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bitcoin-p2p`
[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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "d6e16af2bbbcc3173cd48d9e450e6db6357db0f17920069e9216ac1a36661cf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6e16af2bbbcc3173cd48d9e450e6db6357db0f17920069e9216ac1a36661cf1", kill_on_drop: false }`
[INFO] [stdout] d6e16af2bbbcc3173cd48d9e450e6db6357db0f17920069e9216ac1a36661cf1