[INFO] fetching crate rmalloc 1.1.0...
[INFO] documenting rmalloc-1.1.0 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate rmalloc 1.1.0 into /workspace/builds/worker-22/source
[INFO] validating manifest of crates.io crate rmalloc 1.1.0 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] removed /workspace/builds/worker-22/source/rust-toolchain
[INFO] started tweaking crates.io crate rmalloc 1.1.0
[INFO] finished tweaking crates.io crate rmalloc 1.1.0
[INFO] tweaked toml for crates.io crate rmalloc 1.1.0 written to /workspace/builds/worker-22/source/Cargo.toml
[INFO] crate crates.io crate rmalloc 1.1.0 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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] bb7ff3ecfa19a7ea4f527db1555514c6412d51354922df5226368ba18c3f1172
[INFO] running `Command { std: "docker" "start" "-a" "bb7ff3ecfa19a7ea4f527db1555514c6412d51354922df5226368ba18c3f1172", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb7ff3ecfa19a7ea4f527db1555514c6412d51354922df5226368ba18c3f1172", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb7ff3ecfa19a7ea4f527db1555514c6412d51354922df5226368ba18c3f1172", kill_on_drop: false }`
[INFO] [stdout] bb7ff3ecfa19a7ea4f527db1555514c6412d51354922df5226368ba18c3f1172
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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] e6d968b9cd3fa908958a0b4307a3686ba6194ede8de757025293f7886ff0db1e
[INFO] running `Command { std: "docker" "start" "-a" "e6d968b9cd3fa908958a0b4307a3686ba6194ede8de757025293f7886ff0db1e", 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]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking mersenne_twister v1.1.1
[INFO] [stderr]  Documenting rmalloc v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(asm)]
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(llvm_asm)]
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `llvm_asm`
[INFO] [stdout]  --> src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(llvm_asm)]
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `rmalloc`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type cdylib --crate-name rmalloc src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=1f53375013e1ce98 -L dependency=/opt/rustwide/target/debug/deps --extern cfg_if=/opt/rustwide/target/debug/deps/libcfg_if-f0be138ff93e7396.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-a57925fd8a7f1e1e.rmeta --extern mersenne_twister=/opt/rustwide/target/debug/deps/libmersenne_twister-6c35b53e82d8bad1.rmeta --extern nix=/opt/rustwide/target/debug/deps/libnix-56fc2ab8f09fdbe0.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-c9967a4e774c7aa2.rmeta --cap-lints=warn --crate-version 1.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "e6d968b9cd3fa908958a0b4307a3686ba6194ede8de757025293f7886ff0db1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6d968b9cd3fa908958a0b4307a3686ba6194ede8de757025293f7886ff0db1e", kill_on_drop: false }`
[INFO] [stdout] e6d968b9cd3fa908958a0b4307a3686ba6194ede8de757025293f7886ff0db1e