[INFO] fetching crate libsvm 0.2.1...
[INFO] documenting libsvm-0.2.1 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate libsvm 0.2.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate libsvm 0.2.1 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libsvm 0.2.1
[INFO] finished tweaking crates.io crate libsvm 0.2.1
[INFO] tweaked toml for crates.io crate libsvm 0.2.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sprs v0.7.1
[INFO] [stderr]   Downloaded libsvm-sys v3.24.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a85c8979df4182b1382951d04c9a5e5d6b0f5e4b4fd41c1adabc7893ad1d9fbd
[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" "a85c8979df4182b1382951d04c9a5e5d6b0f5e4b4fd41c1adabc7893ad1d9fbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a85c8979df4182b1382951d04c9a5e5d6b0f5e4b4fd41c1adabc7893ad1d9fbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a85c8979df4182b1382951d04c9a5e5d6b0f5e4b4fd41c1adabc7893ad1d9fbd", kill_on_drop: false }`
[INFO] [stdout] a85c8979df4182b1382951d04c9a5e5d6b0f5e4b4fd41c1adabc7893ad1d9fbd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5464ae73a4ee2fbf15d6cbb98ca12e6fce3825941ab9233c5a1dc039f4e99529
[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" "5464ae73a4ee2fbf15d6cbb98ca12e6fce3825941ab9233c5a1dc039f4e99529", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling libsvm-sys v3.24.0
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]    Compiling ctor v0.1.20
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]  Documenting libsvm v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::array::FixedSizeArray`
[INFO] [stdout]  --> src/data.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     array::FixedSizeArray,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^ no `FixedSizeArray` in `array`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(const_generics)]
[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:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(fixed_size_array)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `libsvm`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name libsvm 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 ctor=/opt/rustwide/target/debug/deps/libctor-31faac8403d82aa3.so --extern failure=/opt/rustwide/target/debug/deps/libfailure-eef80ab12391a646.rmeta --extern libsvm_sys=/opt/rustwide/target/debug/deps/liblibsvm_sys-7ebbdb24254463bd.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-13f09f252247b660.rmeta --extern num_derive=/opt/rustwide/target/debug/deps/libnum_derive-075596a9c9f04665.so --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-397d8ff81ee88563.rmeta --cap-lints=warn --crate-version 0.2.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "5464ae73a4ee2fbf15d6cbb98ca12e6fce3825941ab9233c5a1dc039f4e99529", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5464ae73a4ee2fbf15d6cbb98ca12e6fce3825941ab9233c5a1dc039f4e99529", kill_on_drop: false }`
[INFO] [stdout] 5464ae73a4ee2fbf15d6cbb98ca12e6fce3825941ab9233c5a1dc039f4e99529
