[INFO] cloning repository https://github.com/springfieldking/os_riscv_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/springfieldking/os_riscv_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspringfieldking%2Fos_riscv_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspringfieldking%2Fos_riscv_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3f07b346d2d37a60ec173be787f233128073afc0
[INFO] testing springfieldking/os_riscv_rust against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspringfieldking%2Fos_riscv_rust" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/springfieldking/os_riscv_rust on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-10/source/.cargo/config
[INFO] started tweaking git repo https://github.com/springfieldking/os_riscv_rust
[INFO] finished tweaking git repo https://github.com/springfieldking/os_riscv_rust
[INFO] tweaked toml for git repo https://github.com/springfieldking/os_riscv_rust written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/springfieldking/os_riscv_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 76d954785901dc353614790c27e5721437fbef6a299c568a0c48ce471cb32ab1
[INFO] running `Command { std: "docker" "start" "-a" "76d954785901dc353614790c27e5721437fbef6a299c568a0c48ce471cb32ab1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76d954785901dc353614790c27e5721437fbef6a299c568a0c48ce471cb32ab1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76d954785901dc353614790c27e5721437fbef6a299c568a0c48ce471cb32ab1", kill_on_drop: false }`
[INFO] [stdout] 76d954785901dc353614790c27e5721437fbef6a299c568a0c48ce471cb32ab1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a7535b4bbf9bf6a2e76ca7f522eb969d887070bc8cc480e78328d0ab1e43742
[INFO] running `Command { std: "docker" "start" "-a" "4a7535b4bbf9bf6a2e76ca7f522eb969d887070bc8cc480e78328d0ab1e43742", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling os v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: invalid instruction mnemonic 'la'
[INFO] [stdout]    |
[INFO] [stdout] note: instantiated into assembly here
[INFO] [stdout]   --> <inline asm>:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     la sp, boot_stack_top
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: couldn't allocate output register for constraint '{x10}'
[INFO] [stdout]   --> src/main.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |         llvm_asm!("ecall"
[INFO] [stdout]    |         ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `os`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "4a7535b4bbf9bf6a2e76ca7f522eb969d887070bc8cc480e78328d0ab1e43742", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a7535b4bbf9bf6a2e76ca7f522eb969d887070bc8cc480e78328d0ab1e43742", kill_on_drop: false }`
[INFO] [stdout] 4a7535b4bbf9bf6a2e76ca7f522eb969d887070bc8cc480e78328d0ab1e43742