[INFO] fetching crate scalesocket 0.1.3...
[INFO] testing scalesocket-0.1.3 against beta-2023-04-20 for beta-1.70-1
[INFO] extracting crate scalesocket 0.1.3 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate scalesocket 0.1.3 on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate scalesocket 0.1.3
[INFO] finished tweaking crates.io crate scalesocket 0.1.3
[INFO] tweaked toml for crates.io crate scalesocket 0.1.3 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate scalesocket 0.1.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dtoa v1.0.6
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[INFO] [stderr]   Downloaded trycmd v0.14.13
[INFO] [stderr]   Downloaded id-pool v0.2.2
[INFO] [stderr]   Downloaded concolor v0.0.12
[INFO] [stderr]   Downloaded prometheus-client-derive-encode v0.4.1
[INFO] [stderr]   Downloaded prometheus-client v0.19.0
[INFO] [stderr]   Downloaded toml_edit v0.19.4
[INFO] [stderr]   Downloaded tungstenite v0.17.3
[INFO] [stderr]   Downloaded headers v0.3.8
[INFO] [stderr]   Downloaded content_inspector v0.2.4
[INFO] [stderr]   Downloaded snapbox v0.4.8
[INFO] [stderr]   Downloaded tokio-tungstenite v0.17.2
[INFO] [stderr]   Downloaded unicode-ident v1.0.7
[INFO] [stderr]   Downloaded warp v0.3.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fa884bfc860d9c588d76530487fd595438bb2a661b074d40d575253df61047ca
[INFO] running `Command { std: "docker" "start" "-a" "fa884bfc860d9c588d76530487fd595438bb2a661b074d40d575253df61047ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa884bfc860d9c588d76530487fd595438bb2a661b074d40d575253df61047ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa884bfc860d9c588d76530487fd595438bb2a661b074d40d575253df61047ca", kill_on_drop: false }`
[INFO] [stdout] fa884bfc860d9c588d76530487fd595438bb2a661b074d40d575253df61047ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2faa71dc70f9803388a26abe6fd16de4699af374280faeedb163e75fc4b37232
[INFO] running `Command { std: "docker" "start" "-a" "2faa71dc70f9803388a26abe6fd16de4699af374280faeedb163e75fc4b37232", kill_on_drop: false }`
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[INFO] [stderr]    Compiling textwrap v0.16.0
[INFO] [stderr]    Compiling num-derive v0.3.3
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[INFO] [stderr]    Compiling urlencoding v2.1.2
[INFO] [stderr]    Compiling futures-executor v0.3.26
[INFO] [stderr]    Compiling futures v0.3.26
[INFO] [stderr]    Compiling tokio-util v0.7.7
[INFO] [stderr]    Compiling tokio-tungstenite v0.17.2
[INFO] [stderr]    Compiling sender-sink v0.2.0
[INFO] [stderr]    Compiling h2 v0.3.16
[INFO] [stderr]    Compiling tokio-stream v0.1.12
[INFO] [stderr]    Compiling toml_datetime v0.6.1
[INFO] [stderr]    Compiling serde_spanned v0.6.1
[INFO] [stderr]    Compiling humantime-serde v1.1.1
[INFO] [stderr]    Compiling toml_edit v0.19.4
[INFO] [stderr]    Compiling tracing-serde v0.1.3
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling tracing-subscriber v0.3.16
[INFO] [stderr]    Compiling trycmd v0.14.13
[INFO] [stderr]    Compiling hyper v0.14.24
[INFO] [stderr]    Compiling warp v0.3.3
[INFO] [stderr]    Compiling scalesocket v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(async_closure)]
[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 `scalesocket` (bin "scalesocket") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "2faa71dc70f9803388a26abe6fd16de4699af374280faeedb163e75fc4b37232", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2faa71dc70f9803388a26abe6fd16de4699af374280faeedb163e75fc4b37232", kill_on_drop: false }`
[INFO] [stdout] 2faa71dc70f9803388a26abe6fd16de4699af374280faeedb163e75fc4b37232
