[INFO] cloning repository https://github.com/0yoyoyo/ponkan-kernel
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/0yoyoyo/ponkan-kernel" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0yoyoyo%2Fponkan-kernel", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0yoyoyo%2Fponkan-kernel'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c4661cbf4eb69d3ea10dda3a0175caa230dbe635
[INFO] testing 0yoyoyo/ponkan-kernel against 1.90.0 for beta-1.91-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0yoyoyo%2Fponkan-kernel" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-2-tc1/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-2-tc1/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/0yoyoyo/ponkan-kernel
[INFO] finished tweaking git repo https://github.com/0yoyoyo/ponkan-kernel
[INFO] tweaked toml for git repo https://github.com/0yoyoyo/ponkan-kernel written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/0yoyoyo/ponkan-kernel on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/0yoyoyo/ponkan-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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 057e2b6a40220bbf56c1a614b668da7ba44b685b2651a59292c1e53076859d98
[INFO] running `Command { std: "docker" "start" "-a" "057e2b6a40220bbf56c1a614b668da7ba44b685b2651a59292c1e53076859d98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "057e2b6a40220bbf56c1a614b668da7ba44b685b2651a59292c1e53076859d98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "057e2b6a40220bbf56c1a614b668da7ba44b685b2651a59292c1e53076859d98", kill_on_drop: false }`
[INFO] [stdout] 057e2b6a40220bbf56c1a614b668da7ba44b685b2651a59292c1e53076859d98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9827116622a5eebc4837aac5d36aa6082bf53f6e5f185f29680748c37874bd30
[INFO] running `Command { std: "docker" "start" "-a" "9827116622a5eebc4837aac5d36aa6082bf53f6e5f185f29680748c37874bd30", kill_on_drop: false }`
[INFO] [stderr]    Compiling ponkan-kernel v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(abi_x86_interrupt)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(default_alloc_error_handler)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `default_alloc_error_handler` has been stable since `1.68.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::log`
[INFO] [stdout]   --> src/logger.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub use crate::log;
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::BUF_CONSOLE`
[INFO] [stdout]   --> src/logger.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub use crate::BUF_CONSOLE;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::WriteBuffer`
[INFO] [stdout]   --> src/logger.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub use crate::WriteBuffer;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::fmt::Write`
[INFO] [stdout]   --> src/logger.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub use core::fmt::Write;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[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] [stdout] warning: the feature `default_alloc_error_handler` has been stable since 1.68.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(default_alloc_error_handler)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ponkan-kernel` (bin "ponkan-kernel") due to 3 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "9827116622a5eebc4837aac5d36aa6082bf53f6e5f185f29680748c37874bd30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9827116622a5eebc4837aac5d36aa6082bf53f6e5f185f29680748c37874bd30", kill_on_drop: false }`
[INFO] [stdout] 9827116622a5eebc4837aac5d36aa6082bf53f6e5f185f29680748c37874bd30
