[INFO] fetching crate untitled_os 0.1.0...
[INFO] testing untitled_os-0.1.0 against 1.91.0 for beta-1.92-2
[INFO] extracting crate untitled_os 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] removed /workspace/builds/worker-2-tc1/source/.cargo/config.toml
[INFO] started tweaking crates.io crate untitled_os 0.1.0
[INFO] finished tweaking crates.io crate untitled_os 0.1.0
[INFO] tweaked toml for crates.io crate untitled_os 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate untitled_os 0.1.0 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate untitled_os 0.1.0 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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded uguid v2.2.0
[INFO] [stderr]   Downloaded ptr_meta_derive v0.2.0
[INFO] [stderr]   Downloaded ptr_meta v0.2.0
[INFO] [stderr]   Downloaded bitflags v2.4.2
[INFO] [stderr]   Downloaded ucs2 v0.3.2
[INFO] [stderr]   Downloaded uefi-macros v0.13.0
[INFO] [stderr]   Downloaded uefi-raw v0.5.0
[INFO] [stderr]   Downloaded uefi v0.26.0
[INFO] [stderr]   Downloaded uefi-services v0.23.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 61f6e864ef8c0f10d4b0043b45a000f16a921491d704773f4573ad86e98f9164
[INFO] running `Command { std: "docker" "start" "-a" "61f6e864ef8c0f10d4b0043b45a000f16a921491d704773f4573ad86e98f9164", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "61f6e864ef8c0f10d4b0043b45a000f16a921491d704773f4573ad86e98f9164", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61f6e864ef8c0f10d4b0043b45a000f16a921491d704773f4573ad86e98f9164", kill_on_drop: false }`
[INFO] [stdout] 61f6e864ef8c0f10d4b0043b45a000f16a921491d704773f4573ad86e98f9164
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f7781a8144e1c62c3754b295c226daabe83ba1ad93a55fd40faaaebff3c30803
[INFO] running `Command { std: "docker" "start" "-a" "f7781a8144e1c62c3754b295c226daabe83ba1ad93a55fd40faaaebff3c30803", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling bit_field v0.10.2
[INFO] [stderr]    Compiling uguid v2.2.0
[INFO] [stderr]    Compiling bitflags v2.4.2
[INFO] [stderr]    Compiling ucs2 v0.3.2
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling uefi-macros v0.13.0
[INFO] [stderr]    Compiling ptr_meta_derive v0.2.0
[INFO] [stderr]    Compiling ptr_meta v0.2.0
[INFO] [stderr]    Compiling uefi-raw v0.5.0
[INFO] [stderr]    Compiling uefi v0.26.0
[INFO] [stderr]    Compiling uefi-services v0.23.0
[INFO] [stderr]    Compiling untitled_os v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: unwinding panics are not supported without std
[INFO] [stdout]   |
[INFO] [stdout]   = help: using nightly cargo, use -Zbuild-std with panic="abort" to avoid unwinding
[INFO] [stdout]   = note: since the core library is usually precompiled with panic="unwind", rebuilding your crate with panic="abort" may not be enough to fix the problem
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `untitled_os` (bin "untitled_os") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "f7781a8144e1c62c3754b295c226daabe83ba1ad93a55fd40faaaebff3c30803", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7781a8144e1c62c3754b295c226daabe83ba1ad93a55fd40faaaebff3c30803", kill_on_drop: false }`
[INFO] [stdout] f7781a8144e1c62c3754b295c226daabe83ba1ad93a55fd40faaaebff3c30803