[INFO] cloning repository https://github.com/Monadic-Cat/ddns
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Monadic-Cat/ddns" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMonadic-Cat%2Fddns", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMonadic-Cat%2Fddns'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2dbf711a3c05a48a4c0eedfdb11741cfca732b81
[INFO] testing Monadic-Cat/ddns against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMonadic-Cat%2Fddns" "/workspace/builds/worker-22/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-22/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Monadic-Cat/ddns on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-22/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-22/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/Monadic-Cat/ddns
[INFO] finished tweaking git repo https://github.com/Monadic-Cat/ddns
[INFO] tweaked toml for git repo https://github.com/Monadic-Cat/ddns written to /workspace/builds/worker-22/source/Cargo.toml
[INFO] crate git repo https://github.com/Monadic-Cat/ddns already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5142d5adda39d53fa86b0c50a334e65353bcd7821bfb044b0b80afcb7a27b96d
[INFO] running `Command { std: "docker" "start" "-a" "5142d5adda39d53fa86b0c50a334e65353bcd7821bfb044b0b80afcb7a27b96d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5142d5adda39d53fa86b0c50a334e65353bcd7821bfb044b0b80afcb7a27b96d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5142d5adda39d53fa86b0c50a334e65353bcd7821bfb044b0b80afcb7a27b96d", kill_on_drop: false }`
[INFO] [stdout] 5142d5adda39d53fa86b0c50a334e65353bcd7821bfb044b0b80afcb7a27b96d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0cd607a840792190dbb4e21689c7658917b74159afa7b2d3a009cc2ba9f66f83
[INFO] running `Command { std: "docker" "start" "-a" "0cd607a840792190dbb4e21689c7658917b74159afa7b2d3a009cc2ba9f66f83", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling ddns v0.1.0 (/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(start)]
[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 `ddns` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "0cd607a840792190dbb4e21689c7658917b74159afa7b2d3a009cc2ba9f66f83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cd607a840792190dbb4e21689c7658917b74159afa7b2d3a009cc2ba9f66f83", kill_on_drop: false }`
[INFO] [stdout] 0cd607a840792190dbb4e21689c7658917b74159afa7b2d3a009cc2ba9f66f83