[INFO] cloning repository https://github.com/rust-gjk/ChatApp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rust-gjk/ChatApp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-gjk%2FChatApp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-gjk%2FChatApp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] adaca4248db672f4cb4e205437cc1d2278abc985
[INFO] testing rust-gjk/ChatApp against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-gjk%2FChatApp" "/workspace/builds/worker-27/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-27/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rust-gjk/ChatApp on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rust-gjk/ChatApp
[INFO] finished tweaking git repo https://github.com/rust-gjk/ChatApp
[INFO] tweaked toml for git repo https://github.com/rust-gjk/ChatApp written to /workspace/builds/worker-27/source/Cargo.toml
[INFO] crate git repo https://github.com/rust-gjk/ChatApp already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v0.13.4
[INFO] [stderr]   Downloaded text_io v0.1.7
[INFO] [stderr]   Downloaded serde_derive v1.0.44
[INFO] [stderr]   Downloaded serde v1.0.44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2a35f54d4ab543777363f989795ceb1e11568264b3aa634dcc6280fa78805240
[INFO] running `Command { std: "docker" "start" "-a" "2a35f54d4ab543777363f989795ceb1e11568264b3aa634dcc6280fa78805240", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a35f54d4ab543777363f989795ceb1e11568264b3aa634dcc6280fa78805240", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a35f54d4ab543777363f989795ceb1e11568264b3aa634dcc6280fa78805240", kill_on_drop: false }`
[INFO] [stdout] 2a35f54d4ab543777363f989795ceb1e11568264b3aa634dcc6280fa78805240
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 47165e8de5de5627691ab35d3e73f596117a0085dec7211e5c1e7660bad11f67
[INFO] running `Command { std: "docker" "start" "-a" "47165e8de5de5627691ab35d3e73f596117a0085dec7211e5c1e7660bad11f67", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling byteorder v1.2.2
[INFO] [stderr]    Compiling serde v1.0.44
[INFO] [stderr]    Compiling text_io v0.1.7
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]    Compiling syn v0.13.4
[INFO] [stderr]    Compiling serde_derive_internals v0.23.1
[INFO] [stderr]    Compiling serde_derive v1.0.44
[INFO] [stderr]    Compiling serde_cbor v0.8.2
[INFO] [stderr]    Compiling ChatApp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: crate `ChatApp` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `chat_app`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[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(type_ascription)]
[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 `ChatApp` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "47165e8de5de5627691ab35d3e73f596117a0085dec7211e5c1e7660bad11f67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47165e8de5de5627691ab35d3e73f596117a0085dec7211e5c1e7660bad11f67", kill_on_drop: false }`
[INFO] [stdout] 47165e8de5de5627691ab35d3e73f596117a0085dec7211e5c1e7660bad11f67