[INFO] cloning repository https://github.com/tmforshaw/Rust-Operating-System
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tmforshaw/Rust-Operating-System" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftmforshaw%2FRust-Operating-System", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftmforshaw%2FRust-Operating-System'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c835278b100c462b8e61469852a9ac994b7840d0
[INFO] testing tmforshaw/Rust-Operating-System against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftmforshaw%2FRust-Operating-System" "/workspace/builds/worker-89/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-89/source'...
[INFO] [stderr] done.
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[INFO] validating manifest of git repo https://github.com/tmforshaw/Rust-Operating-System on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-89/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/tmforshaw/Rust-Operating-System
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/tmforshaw/Rust-Operating-System
[INFO] tweaked toml for git repo https://github.com/tmforshaw/Rust-Operating-System written to /workspace/builds/worker-89/source/Cargo.toml
[INFO] crate git repo https://github.com/tmforshaw/Rust-Operating-System already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded volatile v0.2.7
[INFO] [stderr]   Downloaded pic8259 v0.10.1
[INFO] [stderr]   Downloaded x86_64 v0.14.3
[INFO] [stderr]   Downloaded uart_16550 v0.2.15
[INFO] [stderr]   Downloaded volatile v0.4.4
[INFO] [stderr]   Downloaded pc-keyboard v0.5.1
[INFO] [stderr]   Downloaded bootloader v0.9.18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b56b4878eae70879ed4628a5dc6f8590ab3dc7da7cdea4676cdb5f252c6f00dc
[INFO] running `Command { std: "docker" "start" "-a" "b56b4878eae70879ed4628a5dc6f8590ab3dc7da7cdea4676cdb5f252c6f00dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b56b4878eae70879ed4628a5dc6f8590ab3dc7da7cdea4676cdb5f252c6f00dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b56b4878eae70879ed4628a5dc6f8590ab3dc7da7cdea4676cdb5f252c6f00dc", kill_on_drop: false }`
[INFO] [stdout] b56b4878eae70879ed4628a5dc6f8590ab3dc7da7cdea4676cdb5f252c6f00dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e88a9bf519f410dda99dba9b2e2a616c170602103b89fbfa3db65db7861025dc
[INFO] running `Command { std: "docker" "start" "-a" "e88a9bf519f410dda99dba9b2e2a616c170602103b89fbfa3db65db7861025dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling x86_64 v0.14.3
[INFO] [stderr]    Compiling bit_field v0.9.0
[INFO] [stderr]    Compiling volatile v0.4.4
[INFO] [stderr]    Compiling bootloader v0.9.18
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling volatile v0.2.7
[INFO] [stderr]    Compiling pc-keyboard v0.5.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling uart_16550 v0.2.15
[INFO] [stderr]    Compiling pic8259 v0.10.1
[INFO] [stderr]    Compiling unnamed_os v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `instructions::hlt`
[INFO] [stdout]  --> src/interrupts.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     instructions::hlt,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: language item required, but not found: `eh_personality`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `unnamed_os` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "e88a9bf519f410dda99dba9b2e2a616c170602103b89fbfa3db65db7861025dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e88a9bf519f410dda99dba9b2e2a616c170602103b89fbfa3db65db7861025dc", kill_on_drop: false }`
[INFO] [stdout] e88a9bf519f410dda99dba9b2e2a616c170602103b89fbfa3db65db7861025dc