[INFO] cloning repository https://github.com/object-Object/osrs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/object-Object/osrs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fobject-Object%2Fosrs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fobject-Object%2Fosrs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dc6a79b71d5ed6ca04053b75e0676add4d9d23b0
[INFO] testing object-Object/osrs 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%2Fobject-Object%2Fosrs" "/workspace/builds/worker-76/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-76/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/object-Object/osrs 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-76/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-76/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/object-Object/osrs
[INFO] finished tweaking git repo https://github.com/object-Object/osrs
[INFO] tweaked toml for git repo https://github.com/object-Object/osrs written to /workspace/builds/worker-76/source/Cargo.toml
[INFO] crate git repo https://github.com/object-Object/osrs 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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] 4dd4588d447fc03e1f9eff9cf02f80dc69335b84eb1aac0a5a90a071ba40d50f
[INFO] running `Command { std: "docker" "start" "-a" "4dd4588d447fc03e1f9eff9cf02f80dc69335b84eb1aac0a5a90a071ba40d50f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4dd4588d447fc03e1f9eff9cf02f80dc69335b84eb1aac0a5a90a071ba40d50f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4dd4588d447fc03e1f9eff9cf02f80dc69335b84eb1aac0a5a90a071ba40d50f", kill_on_drop: false }`
[INFO] [stdout] 4dd4588d447fc03e1f9eff9cf02f80dc69335b84eb1aac0a5a90a071ba40d50f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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] fa4908f49785461a6ac2de1ebfe5acdb866031ce878d429471469296423f1aa6
[INFO] running `Command { std: "docker" "start" "-a" "fa4908f49785461a6ac2de1ebfe5acdb866031ce878d429471469296423f1aa6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling bootloader v0.9.21
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling volatile v0.3.0
[INFO] [stderr]    Compiling lock_api v0.4.6
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling spin v0.9.2
[INFO] [stderr]    Compiling rsos 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:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(const_mut_refs)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/main.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     panic!("test");
[INFO] [stdout]    |     -------------- any code following this expression is unreachable
[INFO] [stdout] 21 | 
[INFO] [stdout] 22 |     loop {} // function isn't allowed to exit, so just infinitely loop at the end
[INFO] [stdout]    |     ^^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rsos` due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "fa4908f49785461a6ac2de1ebfe5acdb866031ce878d429471469296423f1aa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa4908f49785461a6ac2de1ebfe5acdb866031ce878d429471469296423f1aa6", kill_on_drop: false }`
[INFO] [stdout] fa4908f49785461a6ac2de1ebfe5acdb866031ce878d429471469296423f1aa6