[INFO] fetching crate math 0.10.0...
[INFO] documenting math-0.10.0 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate math 0.10.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate math 0.10.0 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] removed /workspace/builds/worker-4-tc1/source/rust-toolchain
[INFO] started tweaking crates.io crate math 0.10.0
[INFO] finished tweaking crates.io crate math 0.10.0
[INFO] tweaked toml for crates.io crate math 0.10.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] c14de4b43a1be9567d6cab1dc3ef562c5af770901955703579e9a1225d290df4
[INFO] running `Command { std: "docker" "start" "-a" "c14de4b43a1be9567d6cab1dc3ef562c5af770901955703579e9a1225d290df4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c14de4b43a1be9567d6cab1dc3ef562c5af770901955703579e9a1225d290df4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c14de4b43a1be9567d6cab1dc3ef562c5af770901955703579e9a1225d290df4", kill_on_drop: false }`
[INFO] [stdout] c14de4b43a1be9567d6cab1dc3ef562c5af770901955703579e9a1225d290df4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 86116ec8d067b012ddc68d0c23c0be5a1e5f79d54d416ef462bc8f5b518fa057
[INFO] running `Command { std: "docker" "start" "-a" "86116ec8d067b012ddc68d0c23c0be5a1e5f79d54d416ef462bc8f5b518fa057", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking rayon v1.8.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-iter v0.1.44
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]  Documenting math v0.10.0 (/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(drain_filter)]
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(bool_to_option)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `drain_filter`
[INFO] [stdout]  --> src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(drain_filter)]
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `2,3`
[INFO] [stdout]   --> src/set/ordered_integer_set.rs:27:69
[INFO] [stdout]    |
[INFO] [stdout] 27 | /// E.g. An `OrderedIntegerSet` containing `ContiguousIntegerSet`s [2,3] and
[INFO] [stdout]    |                                                                     ^^^ no item named `2,3` in scope
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout]    = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `5,7`
[INFO] [stdout]   --> src/set/ordered_integer_set.rs:28:6
[INFO] [stdout]    |
[INFO] [stdout] 28 | /// [5,7] will represent the set of integers {2, 3, 5, 6, 7}
[INFO] [stdout]    |      ^^^ no item named `5,7` in scope
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `1,3`
[INFO] [stdout]   --> src/set/ordered_integer_set.rs:78:16
[INFO] [stdout]    |
[INFO] [stdout] 78 |     /// e.g. {[1,3], [4,8]} -> 1
[INFO] [stdout]    |                ^^^ no item named `1,3` in scope
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `4,8`
[INFO] [stdout]   --> src/set/ordered_integer_set.rs:78:23
[INFO] [stdout]    |
[INFO] [stdout] 78 |     /// e.g. {[1,3], [4,8]} -> 1
[INFO] [stdout]    |                       ^^^ no item named `4,8` in scope
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `1,3`
[INFO] [stdout]   --> src/set/ordered_integer_set.rs:93:16
[INFO] [stdout]    |
[INFO] [stdout] 93 |     /// e.g. {[1,3], [4,8]} -> 8
[INFO] [stdout]    |                ^^^ no item named `1,3` in scope
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `4,8`
[INFO] [stdout]   --> src/set/ordered_integer_set.rs:93:23
[INFO] [stdout]    |
[INFO] [stdout] 93 |     /// e.g. {[1,3], [4,8]} -> 8
[INFO] [stdout]    |                       ^^^ no item named `4,8` in scope
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `1,3`
[INFO] [stdout]    --> src/set/ordered_integer_set.rs:112:16
[INFO] [stdout]     |
[INFO] [stdout] 112 |     /// e.g. {[1,3], [4,8]} -> the tuple (1, 8)
[INFO] [stdout]     |                ^^^ no item named `1,3` in scope
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `4,8`
[INFO] [stdout]    --> src/set/ordered_integer_set.rs:112:23
[INFO] [stdout]     |
[INFO] [stdout] 112 |     /// e.g. {[1,3], [4,8]} -> the tuple (1, 8)
[INFO] [stdout]     |                       ^^^ no item named `4,8` in scope
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `math`
[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 math src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=cb3f6fe84ca5bf9c -L dependency=/opt/rustwide/target/debug/deps --extern log=/opt/rustwide/target/debug/deps/liblog-c2b9fe8f0bb60ac5.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-41541037914ec4f5.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-bcd63146809347a1.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-cc0e243b6c53ea48.rmeta --cap-lints=warn --crate-version 0.10.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "86116ec8d067b012ddc68d0c23c0be5a1e5f79d54d416ef462bc8f5b518fa057", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86116ec8d067b012ddc68d0c23c0be5a1e5f79d54d416ef462bc8f5b518fa057", kill_on_drop: false }`
[INFO] [stdout] 86116ec8d067b012ddc68d0c23c0be5a1e5f79d54d416ef462bc8f5b518fa057
