[INFO] cloning repository https://github.com/HUST-OS/rustsbi-k210
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/HUST-OS/rustsbi-k210" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHUST-OS%2Frustsbi-k210", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHUST-OS%2Frustsbi-k210'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 563144b03180f6d2e1cab13fde729bb67b0d2797
[INFO] checking HUST-OS/rustsbi-k210 against 1.55.0 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHUST-OS%2Frustsbi-k210" "/workspace/builds/worker-42/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-42/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/HUST-OS/rustsbi-k210 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-42/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/HUST-OS/rustsbi-k210
[INFO] finished tweaking git repo https://github.com/HUST-OS/rustsbi-k210
[INFO] tweaked toml for git repo https://github.com/HUST-OS/rustsbi-k210 written to /workspace/builds/worker-42/source/Cargo.toml
[INFO] crate git repo https://github.com/HUST-OS/rustsbi-k210 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded vcell v0.1.3
[INFO] [stderr]   Downloaded CoreFoundation-sys v0.1.4
[INFO] [stderr]   Downloaded IOKit-sys v0.1.5
[INFO] [stderr]   Downloaded libudev v0.2.0
[INFO] [stderr]   Downloaded r0 v1.0.0
[INFO] [stderr]   Downloaded k210-pac v0.2.0
[INFO] [stderr]   Downloaded mach v0.1.2
[INFO] [stderr]   Downloaded serialport v4.0.1
[INFO] [stderr]   Downloaded nix v0.16.1
[INFO] [stderr]   Downloaded rustsbi v0.2.0-alpha.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3f9ccd78a607c5e06ac3edea9853cd7f124d6315c1d8e78da25081c3c9f56016
[INFO] running `Command { std: "docker" "start" "-a" "3f9ccd78a607c5e06ac3edea9853cd7f124d6315c1d8e78da25081c3c9f56016", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f9ccd78a607c5e06ac3edea9853cd7f124d6315c1d8e78da25081c3c9f56016", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f9ccd78a607c5e06ac3edea9853cd7f124d6315c1d8e78da25081c3c9f56016", kill_on_drop: false }`
[INFO] [stdout] 3f9ccd78a607c5e06ac3edea9853cd7f124d6315c1d8e78da25081c3c9f56016
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2de8cc48dbb9b4b7782b117356409c3faa41ac2dcbe6b308dde6228b3a59af22
[INFO] running `Command { std: "docker" "start" "-a" "2de8cc48dbb9b4b7782b117356409c3faa41ac2dcbe6b308dde6228b3a59af22", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]     Checking bit_field v0.10.1
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]     Checking spin v0.7.1
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]    Compiling riscv v0.5.4
[INFO] [stderr]    Compiling k210-pac v0.2.0
[INFO] [stderr]    Compiling nix v0.16.1
[INFO] [stderr]     Checking bit_field v0.9.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]     Checking r0 v1.0.0
[INFO] [stderr]    Compiling test-kernel v0.1.0 (/opt/rustwide/workdir/test-kernel)
[INFO] [stderr]    Compiling rustsbi-k210 v0.0.1 (/opt/rustwide/workdir/rustsbi-k210)
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking buddy_system_allocator v0.8.0
[INFO] [stderr]     Checking spin v0.9.0
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking embedded-hal v1.0.0-alpha.4
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking libudev v0.2.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling riscv-target v0.1.2
[INFO] [stderr]     Checking serialport v4.0.1
[INFO] [stderr]    Compiling riscv v0.6.0
[INFO] [stderr]    Compiling riscv v0.6.0 (https://github.com/rust-embedded/riscv?rev=7e9d2e5b#7e9d2e5b)
[INFO] [stderr]    Compiling riscv v0.6.0 (https://github.com/rust-embedded/riscv?rev=7e9d2e5#7e9d2e5b)
[INFO] [stderr]     Checking k210-hal v0.2.0 (https://github.com/riscv-rust/k210-hal#98fb5156)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/riscv-d8b7910be325660f/7e9d2e5/src/lib.rs:17:37
[INFO] [stdout]    |
[INFO] [stdout] 17 | #![cfg_attr(feature = "inline-asm", feature(llvm_asm))]
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/riscv-d8b7910be325660f/7e9d2e5/src/lib.rs:17:37
[INFO] [stdout]    |
[INFO] [stdout] 17 | #![cfg_attr(feature = "inline-asm", feature(llvm_asm))]
[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] [stderr] warning: build failed, waiting for other jobs to finish...
[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: build failed
[INFO] running `Command { std: "docker" "inspect" "2de8cc48dbb9b4b7782b117356409c3faa41ac2dcbe6b308dde6228b3a59af22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2de8cc48dbb9b4b7782b117356409c3faa41ac2dcbe6b308dde6228b3a59af22", kill_on_drop: false }`
[INFO] [stdout] 2de8cc48dbb9b4b7782b117356409c3faa41ac2dcbe6b308dde6228b3a59af22
