[INFO] cloning repository https://github.com/pleasewhy/riscv-vm-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pleasewhy/riscv-vm-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpleasewhy%2Friscv-vm-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpleasewhy%2Friscv-vm-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9121a8245472de13860dd768df00011d6acb53eb
[INFO] documenting pleasewhy/riscv-vm-rust against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpleasewhy%2Friscv-vm-rust" "/workspace/builds/worker-39/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-39/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pleasewhy/riscv-vm-rust on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pleasewhy/riscv-vm-rust
[INFO] finished tweaking git repo https://github.com/pleasewhy/riscv-vm-rust
[INFO] tweaked toml for git repo https://github.com/pleasewhy/riscv-vm-rust written to /workspace/builds/worker-39/source/Cargo.toml
[INFO] crate git repo https://github.com/pleasewhy/riscv-vm-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 703870f580e47b0fbb98d56c42feeefc1e47e1da7e7941829448c20c9ccb218a
[INFO] running `Command { std: "docker" "start" "-a" "703870f580e47b0fbb98d56c42feeefc1e47e1da7e7941829448c20c9ccb218a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "703870f580e47b0fbb98d56c42feeefc1e47e1da7e7941829448c20c9ccb218a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "703870f580e47b0fbb98d56c42feeefc1e47e1da7e7941829448c20c9ccb218a", kill_on_drop: false }`
[INFO] [stdout] 703870f580e47b0fbb98d56c42feeefc1e47e1da7e7941829448c20c9ccb218a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e749e633bcacda7c4a07cc3a355416f9cb84d1faae4d70133f7833017924af76
[INFO] running `Command { std: "docker" "start" "-a" "e749e633bcacda7c4a07cc3a355416f9cb84d1faae4d70133f7833017924af76", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling time-macros v0.2.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking riscv-decode v0.2.0 (https://github.com/pleasewhy/riscv-decode?rev=b7668c11c8fdcc4db2da50c7e5b041f60736b135#b7668c11)
[INFO] [stderr]     Checking elf v0.0.10
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.3.5
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking simple_logger v1.16.0
[INFO] [stderr]  Documenting riscv-vm-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `riscv_mem_fetch_inst` should have an upper camel case name
[INFO] [stdout]   --> src/riscv_core/riscv.rs:14:10
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub type riscv_mem_fetch_inst = Box<dyn Fn()>;
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `RiscvMemFetchInst`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(get_mut_unchecked)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `riscv-vm-rust`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name riscv_vm_rust src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=0909d2fefcbb3a10 -L dependency=/opt/rustwide/target/debug/deps --extern elf=/opt/rustwide/target/debug/deps/libelf-7aa6f4d12ef0fdbf.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-3330e45e5c32c929.rmeta --extern riscv_decode=/opt/rustwide/target/debug/deps/libriscv_decode-e9f94d5860f60c34.rmeta --extern simple_logger=/opt/rustwide/target/debug/deps/libsimple_logger-03a08d8f8cef37bf.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "e749e633bcacda7c4a07cc3a355416f9cb84d1faae4d70133f7833017924af76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e749e633bcacda7c4a07cc3a355416f9cb84d1faae4d70133f7833017924af76", kill_on_drop: false }`
[INFO] [stdout] e749e633bcacda7c4a07cc3a355416f9cb84d1faae4d70133f7833017924af76