[INFO] cloning repository https://github.com/meow-chip/MeowSBI
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/meow-chip/MeowSBI" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmeow-chip%2FMeowSBI", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmeow-chip%2FMeowSBI'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bd3f1b89aec00b93189de930dc47a27b4fa56c16
[INFO] documenting meow-chip/MeowSBI against 1.47.0 for beta-1.48-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmeow-chip%2FMeowSBI" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/meow-chip/MeowSBI on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/meow-chip/MeowSBI
[INFO] finished tweaking git repo https://github.com/meow-chip/MeowSBI
[INFO] tweaked toml for git repo https://github.com/meow-chip/MeowSBI written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/meow-chip/MeowSBI already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--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 bare-metal v0.2.4
[INFO] [stderr]   Downloaded riscv v0.5.6
[INFO] [stderr]   Downloaded fdt v0.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b544c5961cf028ac8fa327debe2769c7e1202894999fb10353ab1d0003db3c1
[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" "4b544c5961cf028ac8fa327debe2769c7e1202894999fb10353ab1d0003db3c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b544c5961cf028ac8fa327debe2769c7e1202894999fb10353ab1d0003db3c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b544c5961cf028ac8fa327debe2769c7e1202894999fb10353ab1d0003db3c1", kill_on_drop: false }`
[INFO] [stdout] 4b544c5961cf028ac8fa327debe2769c7e1202894999fb10353ab1d0003db3c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ea74b38e7063307a3439eb4bab5ffe966f171c89b463ff0416b6ea5e01e346d
[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" "0ea74b38e7063307a3439eb4bab5ffe966f171c89b463ff0416b6ea5e01e346d", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling riscv v0.5.6
[INFO] [stderr]    Compiling meow-sbi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking bit_field v0.9.0
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]    Compiling bare-metal v0.2.4
[INFO] [stderr]     Checking fdt v0.0.1
[INFO] [stderr]  Documenting meow-sbi 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:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | / #![feature(
[INFO] [stdout] 3 | |     const_generics,
[INFO] [stdout] 4 | |     link_args,
[INFO] [stdout] 5 | |     naked_functions,
[INFO] [stdout] ... |
[INFO] [stdout] 8 | |     const_transmute
[INFO] [stdout] 9 | | )]
[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:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #![feature(const_in_array_repeat_expressions)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `meow-sbi`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name meow_sbi src/main.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern fdt=/opt/rustwide/target/debug/deps/libfdt-81bb5a2c87d8b1f0.rmeta --extern riscv=/opt/rustwide/target/debug/deps/libriscv-94b23278b3f4efe7.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "0ea74b38e7063307a3439eb4bab5ffe966f171c89b463ff0416b6ea5e01e346d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ea74b38e7063307a3439eb4bab5ffe966f171c89b463ff0416b6ea5e01e346d", kill_on_drop: false }`
[INFO] [stdout] 0ea74b38e7063307a3439eb4bab5ffe966f171c89b463ff0416b6ea5e01e346d
