[INFO] fetching crate fast_ode 0.1.3...
[INFO] documenting fast_ode-0.1.3 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate fast_ode 0.1.3 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate fast_ode 0.1.3 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fast_ode 0.1.3
[INFO] finished tweaking crates.io crate fast_ode 0.1.3
[INFO] tweaked toml for crates.io crate fast_ode 0.1.3 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mathru v0.9.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+1.61.0" "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] 45d1b5ad149f66a0a4aa693fe7200ab5f74f0de3e5200de34f2ad03f62cb315d
[INFO] running `Command { std: "docker" "start" "-a" "45d1b5ad149f66a0a4aa693fe7200ab5f74f0de3e5200de34f2ad03f62cb315d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "45d1b5ad149f66a0a4aa693fe7200ab5f74f0de3e5200de34f2ad03f62cb315d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45d1b5ad149f66a0a4aa693fe7200ab5f74f0de3e5200de34f2ad03f62cb315d", kill_on_drop: false }`
[INFO] [stdout] 45d1b5ad149f66a0a4aa693fe7200ab5f74f0de3e5200de34f2ad03f62cb315d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", 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] 6320518d9079a047ad98e7174921ab84f86cb8893c8e6835f370cf5728fabbce
[INFO] running `Command { std: "docker" "start" "-a" "6320518d9079a047ad98e7174921ab84f86cb8893c8e6835f370cf5728fabbce", kill_on_drop: false }`
[INFO] [stderr]     Checking float_next_after v0.1.5
[INFO] [stderr]  Documenting fast_ode v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(test)]
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `fast_ode`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name fast_ode src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=3168c003b56f32a4 -L dependency=/opt/rustwide/target/debug/deps --extern float_next_after=/opt/rustwide/target/debug/deps/libfloat_next_after-152d803fec0d0c69.rmeta --cap-lints=warn --crate-version 0.1.3` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "6320518d9079a047ad98e7174921ab84f86cb8893c8e6835f370cf5728fabbce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6320518d9079a047ad98e7174921ab84f86cb8893c8e6835f370cf5728fabbce", kill_on_drop: false }`
[INFO] [stdout] 6320518d9079a047ad98e7174921ab84f86cb8893c8e6835f370cf5728fabbce