[INFO] fetching crate bad64 0.3.0...
[INFO] documenting bad64-0.3.0 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate bad64 0.3.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate bad64 0.3.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bad64 0.3.0
[INFO] finished tweaking crates.io crate bad64 0.3.0
[INFO] tweaked toml for crates.io crate bad64 0.3.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate bad64 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "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] cb31269f80a9c1a83b9bb39e7de2572db132b00b23aa9e1f6c9caca3fc30e414
[INFO] running `Command { std: "docker" "start" "-a" "cb31269f80a9c1a83b9bb39e7de2572db132b00b23aa9e1f6c9caca3fc30e414", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb31269f80a9c1a83b9bb39e7de2572db132b00b23aa9e1f6c9caca3fc30e414", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb31269f80a9c1a83b9bb39e7de2572db132b00b23aa9e1f6c9caca3fc30e414", kill_on_drop: false }`
[INFO] [stdout] cb31269f80a9c1a83b9bb39e7de2572db132b00b23aa9e1f6c9caca3fc30e414
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f0b044d2232e95bba267eeebe5dc4fa204958146a5bcba50f82a2ca975f8e008
[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" "f0b044d2232e95bba267eeebe5dc4fa204958146a5bcba50f82a2ca975f8e008", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling funty v1.1.0
[INFO] [stderr]    Compiling wyz v0.2.0
[INFO] [stderr]    Compiling bindgen v0.59.0
[INFO] [stderr]    Compiling regex-syntax v0.6.23
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling shlex v1.0.0
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling syn v1.0.63
[INFO] [stderr]     Checking cty v0.2.1
[INFO] [stderr]    Compiling libloading v0.7.0
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling nom v6.2.1
[INFO] [stderr]    Compiling bitvec v0.19.5
[INFO] [stderr]    Compiling clang-sys v1.1.1
[INFO] [stderr]     Checking cstr_core v0.2.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling regex v1.4.4
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]    Compiling cexpr v0.5.0
[INFO] [stderr]    Compiling bad64-sys v0.3.0
[INFO] [stderr]  Documenting bad64 v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:67:1
[INFO] [stdout]    |
[INFO] [stdout] 67 | #![feature(maybe_uninit_uninit_array, maybe_uninit_extra, maybe_uninit_slice)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `bad64`
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] Caused by:
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name bad64 src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern bad64_sys=/opt/rustwide/target/debug/deps/libbad64_sys-50a7028b1dfc66cd.rmeta --extern cstr_core=/opt/rustwide/target/debug/deps/libcstr_core-e96f55407662bca3.rmeta --extern num_derive=/opt/rustwide/target/debug/deps/libnum_derive-75c7aa438fc6e341.so --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-19eddd40197aec2d.rmeta --extern static_assertions=/opt/rustwide/target/debug/deps/libstatic_assertions-140fe15ab40ccc28.rmeta --cap-lints=warn --crate-version 0.3.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "f0b044d2232e95bba267eeebe5dc4fa204958146a5bcba50f82a2ca975f8e008", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0b044d2232e95bba267eeebe5dc4fa204958146a5bcba50f82a2ca975f8e008", kill_on_drop: false }`
[INFO] [stdout] f0b044d2232e95bba267eeebe5dc4fa204958146a5bcba50f82a2ca975f8e008
