[INFO] fetching crate telegram-bot-async 0.8.2...
[INFO] testing telegram-bot-async-0.8.2 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate telegram-bot-async 0.8.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate telegram-bot-async 0.8.2 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate telegram-bot-async 0.8.2
[INFO] finished tweaking crates.io crate telegram-bot-async 0.8.2
[INFO] tweaked toml for crates.io crate telegram-bot-async 0.8.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded telegram-bot-async-raw v0.8.2
[INFO] [stderr]   Downloaded futures-async-stream v0.1.5
[INFO] [stderr]   Downloaded futures-async-stream-macro v0.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 66413fc1603b73241bf9f175b66e1cd6a9de2dbff9a7accaddfcd5981f3e5d80
[INFO] running `Command { std: "docker" "start" "-a" "66413fc1603b73241bf9f175b66e1cd6a9de2dbff9a7accaddfcd5981f3e5d80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "66413fc1603b73241bf9f175b66e1cd6a9de2dbff9a7accaddfcd5981f3e5d80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66413fc1603b73241bf9f175b66e1cd6a9de2dbff9a7accaddfcd5981f3e5d80", kill_on_drop: false }`
[INFO] [stdout] 66413fc1603b73241bf9f175b66e1cd6a9de2dbff9a7accaddfcd5981f3e5d80
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ecd7a48d904017d8a294187f2b2cd327a3066ddcdae76ccdefb52749cf0586f
[INFO] running `Command { std: "docker" "start" "-a" "7ecd7a48d904017d8a294187f2b2cd327a3066ddcdae76ccdefb52749cf0586f", kill_on_drop: false }`
[INFO] [stderr]    Compiling antidote v1.0.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling futures-async-stream-macro v0.1.5
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]    Compiling hyper v0.13.10
[INFO] [stderr]    Compiling http v0.1.21
[INFO] [stderr]    Compiling ordered-float v1.1.1
[INFO] [stderr]    Compiling serde-value v0.5.3
[INFO] [stderr]    Compiling telegram-bot-async-raw v0.8.2
[INFO] [stderr]    Compiling futures-async-stream v0.1.5
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-async-stream-0.1.5/src/lib.rs:216:1
[INFO] [stdout]     |
[INFO] [stdout] 216 | #![feature(generator_trait)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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 E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `futures-async-stream` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "7ecd7a48d904017d8a294187f2b2cd327a3066ddcdae76ccdefb52749cf0586f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ecd7a48d904017d8a294187f2b2cd327a3066ddcdae76ccdefb52749cf0586f", kill_on_drop: false }`
[INFO] [stdout] 7ecd7a48d904017d8a294187f2b2cd327a3066ddcdae76ccdefb52749cf0586f