[INFO] fetching crate easy-ml 1.4.0...
[INFO] documenting easy-ml-1.4.0 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate easy-ml 1.4.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate easy-ml 1.4.0 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate easy-ml 1.4.0
[INFO] finished tweaking crates.io crate easy-ml 1.4.0
[INFO] tweaked toml for crates.io crate easy-ml 1.4.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded drawille v0.2.3
[INFO] [stderr]   Downloaded textplots v0.5.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1fa168865a295e9d2c20b3582168e06551e1e38dc500dfded78df7cb831757ed
[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" "1fa168865a295e9d2c20b3582168e06551e1e38dc500dfded78df7cb831757ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1fa168865a295e9d2c20b3582168e06551e1e38dc500dfded78df7cb831757ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fa168865a295e9d2c20b3582168e06551e1e38dc500dfded78df7cb831757ed", kill_on_drop: false }`
[INFO] [stdout] 1fa168865a295e9d2c20b3582168e06551e1e38dc500dfded78df7cb831757ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 29b80b34654250f7a2d4cc92e6e710fe20ba062f8747f31ea5d0992f076e04ea
[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" "29b80b34654250f7a2d4cc92e6e710fe20ba062f8747f31ea5d0992f076e04ea", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Documenting easy-ml v1.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `i`
[INFO] [stdout]    --> src/linear_algebra.rs:510:15
[INFO] [stdout]     |
[INFO] [stdout] 510 |  * softmax(z)[i] = e<sup>z<sub>i</sub></sup> / the sum of e<sup>z<sub>j</sub></sup> for all j
[INFO] [stdout]     |               ^ the module `linear_algebra` contains no item named `i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(broken_intra_doc_links)]` on by default
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `x`
[INFO] [stdout]  --> src/linear_regression.rs:9:45
[INFO] [stdout]   |
[INFO] [stdout] 9 | from the inputs x, expanding each row from [x] to [1, x, x^2] to allow the model
[INFO] [stdout]   |                                             ^ the module `linear_regression` contains no item named `x`
[INFO] [stdout]   |
[INFO] [stdout]   = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]    --> src/numeric.rs:598:4
[INFO] [stdout]     |
[INFO] [stdout] 598 |    * ```ignore
[INFO] [stdout]     |  ____^
[INFO] [stdout] 599 | |  *  fn function_name<T: Numeric + Real>()
[INFO] [stdout] 600 | |  *  where for<'a> &'a T: NumericRef<T> + RealRef<T> {
[INFO] [stdout] 601 | |  * ```
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: error from rustc: this file contains an unclosed delimiter
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]    --> src/numeric.rs:110:4
[INFO] [stdout]     |
[INFO] [stdout] 110 |    * ```ignore
[INFO] [stdout]     |  ____^
[INFO] [stdout] 111 | |  *  fn function_name<T: Numeric>()
[INFO] [stdout] 112 | |  *  where for<'a> &'a T: NumericRef<T> {
[INFO] [stdout] 113 | |  * ```
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: error from rustc: this file contains an unclosed delimiter
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.02s
[INFO] running `Command { std: "docker" "inspect" "29b80b34654250f7a2d4cc92e6e710fe20ba062f8747f31ea5d0992f076e04ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29b80b34654250f7a2d4cc92e6e710fe20ba062f8747f31ea5d0992f076e04ea", kill_on_drop: false }`
[INFO] [stdout] 29b80b34654250f7a2d4cc92e6e710fe20ba062f8747f31ea5d0992f076e04ea
