[INFO] cloning repository https://github.com/gmessaoudi/Training-Kernel
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gmessaoudi/Training-Kernel" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgmessaoudi%2FTraining-Kernel", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgmessaoudi%2FTraining-Kernel'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8a3f34d890204919e5629109890c1f9f838f8bde
[INFO] testing gmessaoudi/Training-Kernel against 1.100.0-beta.1 for beta-1.100-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgmessaoudi%2FTraining-Kernel" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/gmessaoudi/Training-Kernel
[INFO] finished tweaking git repo https://github.com/gmessaoudi/Training-Kernel
[INFO] tweaked toml for git repo https://github.com/gmessaoudi/Training-Kernel written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/gmessaoudi/Training-Kernel on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/gmessaoudi/Training-Kernel 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" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 24992c32ab25e59472c8533e69dd5e19140ca89eab69d6c7a92cc2ca0bb1b967
[INFO] running `Command { std: "docker" "start" "24992c32ab25e59472c8533e69dd5e19140ca89eab69d6c7a92cc2ca0bb1b967", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "24992c32ab25e59472c8533e69dd5e19140ca89eab69d6c7a92cc2ca0bb1b967", 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" "24992c32ab25e59472c8533e69dd5e19140ca89eab69d6c7a92cc2ca0bb1b967" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "24992c32ab25e59472c8533e69dd5e19140ca89eab69d6c7a92cc2ca0bb1b967", 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=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "24992c32ab25e59472c8533e69dd5e19140ca89eab69d6c7a92cc2ca0bb1b967" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling kernel 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] [stdout] warning: formatting may not be suitable for sub-register argument
[INFO] [stdout]   --> src/time/timer.rs:12:25
[INFO] [stdout]    |
[INFO] [stdout] 12 |         asm!("csrs mie, {}", in(reg) 1 << 7);
[INFO] [stdout]    |                         ^^           ------ for this argument
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `{0:e}` to have the register formatted as `eax` (for 4-byte values)
[INFO] [stdout]    = help: or use `{0:r}` to keep the default formatting of `rax` (for 8-byte values)
[INFO] [stdout]    = note: `#[warn(asm_sub_register)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: formatting may not be suitable for sub-register argument
[INFO] [stdout]   --> src/time/timer.rs:13:29
[INFO] [stdout]    |
[INFO] [stdout] 13 |         asm!("csrs mstatus, {}", in(reg) 1 << 3);
[INFO] [stdout]    |                             ^^           ------ for this argument
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `{0:e}` to have the register formatted as `eax` (for 4-byte values)
[INFO] [stdout]    = help: or use `{0:r}` to keep the default formatting of `rax` (for 8-byte values)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kernel` (bin "kernel") due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "24992c32ab25e59472c8533e69dd5e19140ca89eab69d6c7a92cc2ca0bb1b967", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24992c32ab25e59472c8533e69dd5e19140ca89eab69d6c7a92cc2ca0bb1b967", kill_on_drop: false }`
[INFO] [stdout] 24992c32ab25e59472c8533e69dd5e19140ca89eab69d6c7a92cc2ca0bb1b967
