[INFO] fetching crate bootloader-x86_64-bios-stage-4 0.11.11...
[INFO] testing bootloader-x86_64-bios-stage-4-0.11.11 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate bootloader-x86_64-bios-stage-4 0.11.11 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate bootloader-x86_64-bios-stage-4 0.11.11
[INFO] finished tweaking crates.io crate bootloader-x86_64-bios-stage-4 0.11.11
[INFO] tweaked toml for crates.io crate bootloader-x86_64-bios-stage-4 0.11.11 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate bootloader-x86_64-bios-stage-4 0.11.11 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate bootloader-x86_64-bios-stage-4 0.11.11 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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rsdp v2.0.0
[INFO] [stderr]   Downloaded bootloader-x86_64-bios-common v0.11.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 76751a424fd061b0e71aa0906a7a8ed6d458735286f2f620df1d4230122ab764
[INFO] running `Command { std: "docker" "start" "-a" "76751a424fd061b0e71aa0906a7a8ed6d458735286f2f620df1d4230122ab764", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76751a424fd061b0e71aa0906a7a8ed6d458735286f2f620df1d4230122ab764", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76751a424fd061b0e71aa0906a7a8ed6d458735286f2f620df1d4230122ab764", kill_on_drop: false }`
[INFO] [stdout] 76751a424fd061b0e71aa0906a7a8ed6d458735286f2f620df1d4230122ab764
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b9b315ab6932bcf7ce6c1854635018be51817131238a552738638723b16915e
[INFO] running `Command { std: "docker" "start" "-a" "6b9b315ab6932bcf7ce6c1854635018be51817131238a552738638723b16915e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.63
[INFO] [stderr]    Compiling unicode-ident v1.0.10
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling semver v1.0.17
[INFO] [stderr]    Compiling serde v1.0.166
[INFO] [stderr]    Compiling rustversion v1.0.13
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]    Compiling bit_field v0.10.2
[INFO] [stderr]    Compiling x86 v0.52.0
[INFO] [stderr]    Compiling raw-cpuid v10.7.0
[INFO] [stderr]    Compiling bitflags v2.3.3
[INFO] [stderr]    Compiling bootloader_api v0.11.11
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling hash32 v0.2.1
[INFO] [stderr]    Compiling volatile v0.4.6
[INFO] [stderr]    Compiling zero v0.1.3
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling conquer-util v0.3.0
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling log v0.4.19
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling conquer-once v0.3.2
[INFO] [stderr]    Compiling spinning_top v0.2.5
[INFO] [stderr]    Compiling syn v2.0.23
[INFO] [stderr]    Compiling xmas-elf v0.8.0
[INFO] [stderr]    Compiling x86_64 v0.15.2
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling heapless v0.7.16
[INFO] [stderr]    Compiling rand_hc v0.3.2
[INFO] [stderr]    Compiling noto-sans-mono-bitmap v0.2.0
[INFO] [stderr]    Compiling ryu v1.0.14
[INFO] [stderr]    Compiling bootloader-x86_64-bios-stage-4 v0.11.11 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling usize_conversions v0.2.0
[INFO] [stderr]    Compiling rsdp v2.0.0
[INFO] [stderr]    Compiling bootloader-x86_64-bios-common v0.11.11
[INFO] [stderr]    Compiling uart_16550 v0.3.2
[INFO] [stderr]    Compiling serde_derive v1.0.166
[INFO] [stderr]    Compiling bootloader-boot-config v0.11.11
[INFO] [stderr]    Compiling serde-json-core v0.5.0
[INFO] [stderr]    Compiling bootloader-x86_64-common v0.11.11
[INFO] [stdout] error: `#[panic_handler]` function required, but not found
[INFO] [stdout] 
[INFO] [stdout] 
[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 `bootloader-x86_64-bios-stage-4` (bin "bootloader-x86_64-bios-stage-4") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "6b9b315ab6932bcf7ce6c1854635018be51817131238a552738638723b16915e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b9b315ab6932bcf7ce6c1854635018be51817131238a552738638723b16915e", kill_on_drop: false }`
[INFO] [stdout] 6b9b315ab6932bcf7ce6c1854635018be51817131238a552738638723b16915e