[INFO] cloning repository https://github.com/panpansuannai/os
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/panpansuannai/os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpanpansuannai%2Fos", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpanpansuannai%2Fos'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 31391aaf137e05949293f459f076176b135ea82a
[INFO] testing panpansuannai/os against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpanpansuannai%2Fos" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/panpansuannai/os on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-12/source/.cargo/config
[INFO] started tweaking git repo https://github.com/panpansuannai/os
[INFO] finished tweaking git repo https://github.com/panpansuannai/os
[INFO] tweaked toml for git repo https://github.com/panpansuannai/os written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/panpansuannai/os already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/rcore-os/riscv`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded xmas-elf v0.8.0
[INFO] [stderr]   Downloaded buddy_system_allocator v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e3cffcaa8c0b4496478a981f9f94324e428b3f1008ec70486afd537e21ea8a1d
[INFO] running `Command { std: "docker" "start" "-a" "e3cffcaa8c0b4496478a981f9f94324e428b3f1008ec70486afd537e21ea8a1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e3cffcaa8c0b4496478a981f9f94324e428b3f1008ec70486afd537e21ea8a1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3cffcaa8c0b4496478a981f9f94324e428b3f1008ec70486afd537e21ea8a1d", kill_on_drop: false }`
[INFO] [stdout] e3cffcaa8c0b4496478a981f9f94324e428b3f1008ec70486afd537e21ea8a1d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ec6535059cc8b16d8e3886de9eafbb9cea437f1b6bbfe8c52175d57a18e654f2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ec6535059cc8b16d8e3886de9eafbb9cea437f1b6bbfe8c52175d57a18e654f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling spin v0.7.1
[INFO] [stderr]    Compiling zero v0.1.2
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling xmas-elf v0.8.0
[INFO] [stderr]    Compiling riscv-target v0.1.2
[INFO] [stderr]    Compiling buddy_system_allocator v0.6.0
[INFO] [stderr]    Compiling riscv v0.6.0 (https://github.com/rcore-os/riscv#11d43cf7)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/riscv-ab2abd16c438337b/11d43cf/src/lib.rs:18:37
[INFO] [stdout]    |
[INFO] [stdout] 18 | #![cfg_attr(feature = "inline-asm", feature(asm_const))]
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `riscv` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "ec6535059cc8b16d8e3886de9eafbb9cea437f1b6bbfe8c52175d57a18e654f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec6535059cc8b16d8e3886de9eafbb9cea437f1b6bbfe8c52175d57a18e654f2", kill_on_drop: false }`
[INFO] [stdout] ec6535059cc8b16d8e3886de9eafbb9cea437f1b6bbfe8c52175d57a18e654f2