[INFO] fetching crate actix-mqtt 0.2.3...
[INFO] checking actix-mqtt-0.2.3 against try#575650af7d7ca88602df28e39d27bf3e456c306e for pr-80579
[INFO] extracting crate actix-mqtt 0.2.3 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate actix-mqtt 0.2.3 on toolchain 575650af7d7ca88602df28e39d27bf3e456c306e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate actix-mqtt 0.2.3
[INFO] finished tweaking crates.io crate actix-mqtt 0.2.3
[INFO] tweaked toml for crates.io crate actix-mqtt 0.2.3 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate actix-mqtt 0.2.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mqtt-codec v0.3.0
[INFO] [stderr]   Downloaded actix-ioframe v0.4.1
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7a2e4a7b403a1dde541fc9a0d06277761987f418a6dc352ab26a3fe16b6dcf37
[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" "7a2e4a7b403a1dde541fc9a0d06277761987f418a6dc352ab26a3fe16b6dcf37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a2e4a7b403a1dde541fc9a0d06277761987f418a6dc352ab26a3fe16b6dcf37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a2e4a7b403a1dde541fc9a0d06277761987f418a6dc352ab26a3fe16b6dcf37", kill_on_drop: false }`
[INFO] [stdout] 7a2e4a7b403a1dde541fc9a0d06277761987f418a6dc352ab26a3fe16b6dcf37
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "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] 93e56e4dfafb54c0c6f6a96f7f54b502f749d09faee1c9deb6b783b477ff9199
[INFO] running `Command { std: "docker" "start" "-a" "93e56e4dfafb54c0c6f6a96f7f54b502f749d09faee1c9deb6b783b477ff9199", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling proc-macro-nested v0.1.3
[INFO] [stderr]     Checking pin-utils v0.1.0-alpha.4
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]     Checking regex-syntax v0.6.16
[INFO] [stderr]     Checking bytestring v0.1.4
[INFO] [stderr]     Checking lock_api v0.3.3
[INFO] [stderr]     Checking http v0.2.0
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking parking_lot_core v0.7.0
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking socket2 v0.3.11
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking threadpool v1.7.1
[INFO] [stderr]     Checking resolv-conf v0.6.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.33
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking parking_lot v0.10.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking backtrace v0.3.45
[INFO] [stderr]     Checking tokio v0.2.13
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking actix-router v0.2.4
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]     Checking tokio-util v0.2.0
[INFO] [stderr]     Checking actix-codec v0.2.0
[INFO] [stderr]     Checking mqtt-codec v0.3.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling derive_more v0.99.3
[INFO] [stderr]    Compiling pin-project-internal v0.4.8
[INFO] [stderr]    Compiling actix-macros v0.1.1
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]    Compiling enum-as-inner v0.3.2
[INFO] [stderr]    Compiling async-trait v0.1.24
[INFO] [stderr]     Checking failure v0.1.7
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]     Checking pin-project v0.4.8
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking actix-threadpool v0.3.1
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking actix-service v1.0.5
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking actix-rt v1.0.0
[INFO] [stderr]     Checking trust-dns-proto v0.18.0-alpha.2
[INFO] [stderr]     Checking actix-utils v1.0.6
[INFO] [stderr]     Checking actix-server v1.0.2
[INFO] [stderr]     Checking actix-ioframe v0.4.1
[INFO] [stderr]     Checking actix-mqtt v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking actix-testing v1.0.0
[INFO] [stderr]     Checking trust-dns-resolver v0.18.0-alpha.2
[INFO] [stderr]     Checking actix-connect v1.0.2
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> examples/basic.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |   fn main() -> std::io::Result<()> {
[INFO] [stdout]    |                ------------------- expected `std::result::Result<(), std::io::Error>` because of return type
[INFO] [stdout] ...
[INFO] [stdout] 27 | /     actix_server::Server::build()
[INFO] [stdout] 28 | |         .bind("mqtt", "127.0.0.1:1883", || {
[INFO] [stdout] 29 | |             MqttServer::new(connect).finish(publish)
[INFO] [stdout] 30 | |         })?
[INFO] [stdout] 31 | |         .workers(1)
[INFO] [stdout] 32 | |         .run()
[INFO] [stdout]    | |______________^ expected enum `std::result::Result`, found struct `Server`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected enum `std::result::Result<(), std::io::Error>`
[INFO] [stdout]             found struct `Server`
[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 E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `actix-mqtt`
[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" "93e56e4dfafb54c0c6f6a96f7f54b502f749d09faee1c9deb6b783b477ff9199", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93e56e4dfafb54c0c6f6a96f7f54b502f749d09faee1c9deb6b783b477ff9199", kill_on_drop: false }`
[INFO] [stdout] 93e56e4dfafb54c0c6f6a96f7f54b502f749d09faee1c9deb6b783b477ff9199