[INFO] cloning repository https://github.com/SARDONYX-sard/xv6_public_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SARDONYX-sard/xv6_public_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSARDONYX-sard%2Fxv6_public_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSARDONYX-sard%2Fxv6_public_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 848bfcf144363254784127c42e5b260f191abfb7
[INFO] fixing SARDONYX-sard/xv6_public_rust against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=start=2015 for pr-157817-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSARDONYX-sard%2Fxv6_public_rust" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-0-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/SARDONYX-sard/xv6_public_rust
[INFO] finished tweaking git repo https://github.com/SARDONYX-sard/xv6_public_rust
[INFO] tweaked toml for git repo https://github.com/SARDONYX-sard/xv6_public_rust written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/SARDONYX-sard/xv6_public_rust on toolchain 622891a4e29178280638a6b63a8908bde2c0c854
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/SARDONYX-sard/xv6_public_rust 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" "+622891a4e29178280638a6b63a8908bde2c0c854" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 63e57055557d024520211e52a4a0dd95e47edb4e54339701f4ae9e6d57bff108
[INFO] running `Command { std: "docker" "start" "63e57055557d024520211e52a4a0dd95e47edb4e54339701f4ae9e6d57bff108", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "63e57055557d024520211e52a4a0dd95e47edb4e54339701f4ae9e6d57bff108" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "63e57055557d024520211e52a4a0dd95e47edb4e54339701f4ae9e6d57bff108", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "63e57055557d024520211e52a4a0dd95e47edb4e54339701f4ae9e6d57bff108" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=start=2015", kill_on_drop: false }`
[INFO] [stderr]    Compiling boot v0.1.0 (/opt/rustwide/workdir/app/os/boot)
[INFO] [stderr]    Compiling kernel v0.1.0 (/opt/rustwide/workdir/app/os/kernel)
[INFO] [stderr]     Checking elf v0.1.0 (/opt/rustwide/workdir/crates/elf)
[INFO] [stderr]     Checking page v0.1.0 (/opt/rustwide/workdir/crates/page)
[INFO] [stderr]     Checking trap v0.1.0 (/opt/rustwide/workdir/crates/trap)
[INFO] [stderr]     Checking syscall v0.1.0 (/opt/rustwide/workdir/crates/syscall)
[INFO] [stderr]     Checking memory v0.1.0 (/opt/rustwide/workdir/crates/memory)
[INFO] [stderr]     Checking user v0.1.0 (/opt/rustwide/workdir/app/user)
[INFO] [stderr]     Checking xtask v0.1.0 (/opt/rustwide/workdir/xtask)
[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] [stdout] warning: function `qemu_exit` is never used
[INFO] [stdout]   --> app/os/kernel/src/main.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn qemu_exit(code: u8) -> ! {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[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 `kernel` (bin "kernel") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `boot` (bin "boot") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "63e57055557d024520211e52a4a0dd95e47edb4e54339701f4ae9e6d57bff108", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63e57055557d024520211e52a4a0dd95e47edb4e54339701f4ae9e6d57bff108", kill_on_drop: false }`
[INFO] [stdout] 63e57055557d024520211e52a4a0dd95e47edb4e54339701f4ae9e6d57bff108
