[INFO] cloning repository https://github.com/llytaii/R_OS
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/llytaii/R_OS" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fllytaii%2FR_OS", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fllytaii%2FR_OS'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c11722ba239a519cfcc7c97937fe064091f0a33b
[INFO] testing llytaii/R_OS 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%2Fllytaii%2FR_OS" "/workspace/builds/worker-81/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-81/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/llytaii/R_OS 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-81/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-81/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/llytaii/R_OS
[INFO] finished tweaking git repo https://github.com/llytaii/R_OS
[INFO] tweaked toml for git repo https://github.com/llytaii/R_OS written to /workspace/builds/worker-81/source/Cargo.toml
[INFO] crate git repo https://github.com/llytaii/R_OS 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-81/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/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] 5103da9b4dd3076597d2125cc63383416266f865dba4f8b23908b30102415ec4
[INFO] running `Command { std: "docker" "start" "-a" "5103da9b4dd3076597d2125cc63383416266f865dba4f8b23908b30102415ec4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5103da9b4dd3076597d2125cc63383416266f865dba4f8b23908b30102415ec4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5103da9b4dd3076597d2125cc63383416266f865dba4f8b23908b30102415ec4", kill_on_drop: false }`
[INFO] [stdout] 5103da9b4dd3076597d2125cc63383416266f865dba4f8b23908b30102415ec4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/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] f1b7f7b792cf1ad02cdd74e00454acae380180ccdc9fc13d4d3576e9b7e65bfa
[INFO] running `Command { std: "docker" "start" "-a" "f1b7f7b792cf1ad02cdd74e00454acae380180ccdc9fc13d4d3576e9b7e65bfa", kill_on_drop: false }`
[INFO] [stderr]    Compiling bootloader v0.9.18
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling volatile v0.2.7
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling r_os v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: language item required, but not found: `eh_personality`
[INFO] [stdout]   |
[INFO] [stdout]   = note: this can occur when a binary crate with `#![no_std]` is compiled for a target where `eh_personality` is defined in the standard library
[INFO] [stdout]   = help: you may be able to compile for a target that doesn't need `eh_personality`, specify a target with `--target` or in `.cargo/config`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     panic!("Some panic message");
[INFO] [stdout]    |     ---------------------------- any code following this expression is unreachable
[INFO] [stdout] 12 |     loop {}
[INFO] [stdout]    |     ^^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `r_os` due to 2 previous errors; 1 warning emitted
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f1b7f7b792cf1ad02cdd74e00454acae380180ccdc9fc13d4d3576e9b7e65bfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1b7f7b792cf1ad02cdd74e00454acae380180ccdc9fc13d4d3576e9b7e65bfa", kill_on_drop: false }`
[INFO] [stdout] f1b7f7b792cf1ad02cdd74e00454acae380180ccdc9fc13d4d3576e9b7e65bfa