[INFO] cloning repository https://github.com/wtyytw0/rCore
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wtyytw0/rCore" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwtyytw0%2FrCore", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwtyytw0%2FrCore'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 180bdc6a51e6de3d5e3d47b28da8335790d3481a
[INFO] testing wtyytw0/rCore against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwtyytw0%2FrCore" "/workspace/builds/worker-36/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-36/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wtyytw0/rCore on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-36/source/.cargo/config
[INFO] removed /workspace/builds/worker-36/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/wtyytw0/rCore
[INFO] finished tweaking git repo https://github.com/wtyytw0/rCore
[INFO] tweaked toml for git repo https://github.com/wtyytw0/rCore written to /workspace/builds/worker-36/source/Cargo.toml
[INFO] crate git repo https://github.com/wtyytw0/rCore already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a63cfc437a79a5aa67acaec152f3e9b94377c534de0948b975f515b589e7c60
[INFO] running `Command { std: "docker" "start" "-a" "9a63cfc437a79a5aa67acaec152f3e9b94377c534de0948b975f515b589e7c60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a63cfc437a79a5aa67acaec152f3e9b94377c534de0948b975f515b589e7c60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a63cfc437a79a5aa67acaec152f3e9b94377c534de0948b975f515b589e7c60", kill_on_drop: false }`
[INFO] [stdout] 9a63cfc437a79a5aa67acaec152f3e9b94377c534de0948b975f515b589e7c60
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c30a0e811dbe7edc715e103871a5133b8161198ca128b2e6047a64c4da094567
[INFO] running `Command { std: "docker" "start" "-a" "c30a0e811dbe7edc715e103871a5133b8161198ca128b2e6047a64c4da094567", kill_on_drop: false }`
[INFO] [stderr]    Compiling os v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: the legacy LLVM-style asm! syntax is no longer supported
[INFO] [stdout]   --> src/sbi.rs:7:9
[INFO] [stdout]    |
[INFO] [stdout] 7  |           asm!("ecall"
[INFO] [stdout]    |           ^---
[INFO] [stdout]    |           |
[INFO] [stdout]    |  _________help: replace with: `llvm_asm!`
[INFO] [stdout]    | |
[INFO] [stdout] 8  | |             : "={x10}" (ret)
[INFO] [stdout] 9  | |             : "{x10}" (arg0), "{x11}" (arg1), "{x12}" (arg2), "{x17}" (which)
[INFO] [stdout] 10 | |             : "memory"
[INFO] [stdout] 11 | |             : "volatile");
[INFO] [stdout]    | |__________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider migrating to the new asm! syntax specified in RFC 2873
[INFO] [stdout]    = note: alternatively, switch to llvm_asm! to keep your code working as it is
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(asm)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(global_asm)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::io`
[INFO] [stdout]  --> src/init.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::io;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::sbi`
[INFO] [stdout]  --> src/init.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::sbi;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/init.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     panic!("you want to do nothing!");
[INFO] [stdout]    |     ---------------------------------- any code following this expression is unreachable
[INFO] [stdout] 14 |     loop {}
[INFO] [stdout]    |     ^^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[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" "c30a0e811dbe7edc715e103871a5133b8161198ca128b2e6047a64c4da094567", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c30a0e811dbe7edc715e103871a5133b8161198ca128b2e6047a64c4da094567", kill_on_drop: false }`
[INFO] [stdout] c30a0e811dbe7edc715e103871a5133b8161198ca128b2e6047a64c4da094567
