[INFO] fetching crate dynagrad 0.4.1...
[INFO] documenting dynagrad-0.4.1 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate dynagrad 0.4.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate dynagrad 0.4.1 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dynagrad 0.4.1
[INFO] finished tweaking crates.io crate dynagrad 0.4.1
[INFO] tweaked toml for crates.io crate dynagrad 0.4.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate dynagrad 0.4.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: file `/workspace/builds/worker-1-tc1/source/examples/simple.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `bin` target `eg_simple`
[INFO] [stderr]   * `example` target `simple`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded byteorder v1.3.2
[INFO] [stderr]   Downloaded gnuplot v0.0.32
[INFO] [stderr]   Downloaded ndarray-rand v0.9.0
[INFO] [stderr]   Downloaded libc v0.2.62
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8b1c87a5e8255b08ffb5a5ad51551d082b946d30038d3114fb7d34a3b59a7aba
[INFO] running `Command { std: "docker" "start" "-a" "8b1c87a5e8255b08ffb5a5ad51551d082b946d30038d3114fb7d34a3b59a7aba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b1c87a5e8255b08ffb5a5ad51551d082b946d30038d3114fb7d34a3b59a7aba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b1c87a5e8255b08ffb5a5ad51551d082b946d30038d3114fb7d34a3b59a7aba", kill_on_drop: false }`
[INFO] [stdout] 8b1c87a5e8255b08ffb5a5ad51551d082b946d30038d3114fb7d34a3b59a7aba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8ebd05e9ec24e7d8fc75aa312ffb0417b347214f5bc7c35c9f169e3498150408
[INFO] running `Command { std: "docker" "start" "-a" "8ebd05e9ec24e7d8fc75aa312ffb0417b347214f5bc7c35c9f169e3498150408", kill_on_drop: false }`
[INFO] [stderr] warning: file `/opt/rustwide/workdir/examples/simple.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `bin` target `eg_simple`
[INFO] [stderr]   * `example` target `simple`
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]     Checking either v1.5.2
[INFO] [stderr]    Compiling ndarray v0.12.1
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]     Checking gnuplot v0.0.32
[INFO] [stderr]     Checking dynagrad v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting dynagrad v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(weak_into_raw)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `weak_into_raw` has been stable since 1.45.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(weak_into_raw)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(weak_into_raw)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 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 `dynagrad`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2018 --crate-type lib --crate-name dynagrad src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=7573ef4d49b700c8 -L dependency=/opt/rustwide/target/debug/deps --extern gnuplot=/opt/rustwide/target/debug/deps/libgnuplot-e370a418bc695bf5.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-6b1f126cf6fbf8dd.rmeta --extern ndarray=/opt/rustwide/target/debug/deps/libndarray-f2d83fb2ff381fad.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-b0bf7fff8bdb795b.rmeta --cap-lints=warn --crate-version 0.4.1` (exit status: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0599]: no function or associated item named `as_raw` found for struct `std::rc::Weak` in the current scope
[INFO] [stdout]   --> src/core.rs:22:16
[INFO] [stdout]    |
[INFO] [stdout] 22 |         (Weak::as_raw(&p) as usize).hash(state);
[INFO] [stdout]    |                ^^^^^^ function or associated item not found in `Weak<_, _>`
[INFO] [stdout]    |
[INFO] [stdout] note: if you're trying to build a new `std::rc::Weak<_, _>` consider using one of the following associated functions:
[INFO] [stdout]       std::rc::Weak::<T>::new
[INFO] [stdout]       std::rc::Weak::<T, A>::new_in
[INFO] [stdout]       std::rc::Weak::<T>::from_raw
[INFO] [stdout]       std::rc::Weak::<T, A>::from_raw_in
[INFO] [stdout]   --> /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/alloc/src/rc.rs:2748:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dynagrad` (lib) due to 3 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "8ebd05e9ec24e7d8fc75aa312ffb0417b347214f5bc7c35c9f169e3498150408", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ebd05e9ec24e7d8fc75aa312ffb0417b347214f5bc7c35c9f169e3498150408", kill_on_drop: false }`
[INFO] [stdout] 8ebd05e9ec24e7d8fc75aa312ffb0417b347214f5bc7c35c9f169e3498150408
