[INFO] fetching crate algebra 0.2.0...
[INFO] documenting algebra-0.2.0 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate algebra 0.2.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate algebra 0.2.0 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate algebra 0.2.0
[INFO] finished tweaking crates.io crate algebra 0.2.0
[INFO] tweaked toml for crates.io crate algebra 0.2.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+1.69.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quickcheck_macros v0.2.29
[INFO] [stderr]   Downloaded quickcheck v0.2.27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ef3a7f2918062e24006e0957f476ce970344454a29818530552a13b26b219a56
[INFO] running `Command { std: "docker" "start" "-a" "ef3a7f2918062e24006e0957f476ce970344454a29818530552a13b26b219a56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef3a7f2918062e24006e0957f476ce970344454a29818530552a13b26b219a56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef3a7f2918062e24006e0957f476ce970344454a29818530552a13b26b219a56", kill_on_drop: false }`
[INFO] [stdout] ef3a7f2918062e24006e0957f476ce970344454a29818530552a13b26b219a56
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b5325619aed37bf789e79d2dfe498d732b343795999210b7d50bb6b02de81685
[INFO] running `Command { std: "docker" "start" "-a" "b5325619aed37bf789e79d2dfe498d732b343795999210b7d50bb6b02de81685", kill_on_drop: false }`
[INFO] [stderr]  Documenting algebra v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]    --> src/structure/mod.rs:106:11
[INFO] [stdout]     |
[INFO] [stdout] 106 |   //! -      `Closure`(`Additive`|`Multiplicative`)(`Approx`)?
[INFO] [stdout]     |  ___________^
[INFO] [stdout] 107 | | //! -        `Magma`(`Additive`|`Multiplicative`)(`Approx`)?
[INFO] [stdout]     | |____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: `#[warn(rustdoc::invalid_rust_codeblocks)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]    --> src/structure/mod.rs:107:11
[INFO] [stdout]     |
[INFO] [stdout] 107 |   //! -        `Magma`(`Additive`|`Multiplicative`)(`Approx`)?
[INFO] [stdout]     |  ___________^
[INFO] [stdout] 108 | | //! -   `Quasigroup`(`Additive`|`Multiplicative`)(`Approx`)?
[INFO] [stdout]     | |____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]    --> src/structure/mod.rs:109:11
[INFO] [stdout]     |
[INFO] [stdout] 109 |   //! -         `Loop`(`Additive`|`Multiplicative`)(`Approx`)?
[INFO] [stdout]     |  ___________^
[INFO] [stdout] 110 | | //! -    `Semigroup`(`Additive`|`Multiplicative`)(`Approx`)?
[INFO] [stdout]     | |____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]    --> src/structure/mod.rs:111:11
[INFO] [stdout]     |
[INFO] [stdout] 111 |   //! -       `Monoid`(`Additive`|`Multiplicative`)(`Approx`)?
[INFO] [stdout]     |  ___________^
[INFO] [stdout] 112 | | //! -        `Group`(`Additive`|`Multiplicative`)(`Approx`)?
[INFO] [stdout]     | |____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]    --> src/structure/mod.rs:112:11
[INFO] [stdout]     |
[INFO] [stdout] 112 |   //! -        `Group`(`Additive`|`Multiplicative`)(`Approx`)?
[INFO] [stdout]     |  ___________^
[INFO] [stdout] 113 | | //! - `AbelianGroup`(`Additive`|`Multiplicative`)(`Approx`)?
[INFO] [stdout]     | |____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]    --> src/structure/mod.rs:138:11
[INFO] [stdout]     |
[INFO] [stdout] 138 |   //! -            `Ring`(`Approx`)?
[INFO] [stdout]     |  ___________^
[INFO] [stdout] 139 | | //! - `RingCommutative`(`Approx`)?
[INFO] [stdout]     | |____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]    --> src/structure/mod.rs:140:11
[INFO] [stdout]     |
[INFO] [stdout] 140 | //! -           `Field`(`Approx`)?
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "b5325619aed37bf789e79d2dfe498d732b343795999210b7d50bb6b02de81685", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5325619aed37bf789e79d2dfe498d732b343795999210b7d50bb6b02de81685", kill_on_drop: false }`
[INFO] [stdout] b5325619aed37bf789e79d2dfe498d732b343795999210b7d50bb6b02de81685
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "rustdoc" "--lib" "-Zrustdoc-map" "-Z" "unstable-options" "--config" "build.rustdocflags=[\"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee8acc685e19da11cdb0e43dd601d0d5f1d9e5618e9fb07ad934e1fe7b2f5d9f
[INFO] running `Command { std: "docker" "start" "-a" "ee8acc685e19da11cdb0e43dd601d0d5f1d9e5618e9fb07ad934e1fe7b2f5d9f", kill_on_drop: false }`
[INFO] [stderr]  Documenting algebra v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]    --> src/structure/mod.rs:106:11
[INFO] [stdout]     |
[INFO] [stdout] 106 |   //! -      `Closure`(`Additive`|`Multiplicative`)(`Approx`)?
[INFO] [stdout]     |  ___________^
[INFO] [stdout] 107 | | //! -        `Magma`(`Additive`|`Multiplicative`)(`Approx`)?
[INFO] [stdout]     | |____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: `#[warn(rustdoc::invalid_rust_codeblocks)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]    --> src/structure/mod.rs:107:11
[INFO] [stdout]     |
[INFO] [stdout] 107 |   //! -        `Magma`(`Additive`|`Multiplicative`)(`Approx`)?
[INFO] [stdout]     |  ___________^
[INFO] [stdout] 108 | | //! -   `Quasigroup`(`Additive`|`Multiplicative`)(`Approx`)?
[INFO] [stdout]     | |____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]    --> src/structure/mod.rs:109:11
[INFO] [stdout]     |
[INFO] [stdout] 109 |   //! -         `Loop`(`Additive`|`Multiplicative`)(`Approx`)?
[INFO] [stdout]     |  ___________^
[INFO] [stdout] 110 | | //! -    `Semigroup`(`Additive`|`Multiplicative`)(`Approx`)?
[INFO] [stdout]     | |____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]    --> src/structure/mod.rs:111:11
[INFO] [stdout]     |
[INFO] [stdout] 111 |   //! -       `Monoid`(`Additive`|`Multiplicative`)(`Approx`)?
[INFO] [stdout]     |  ___________^
[INFO] [stdout] 112 | | //! -        `Group`(`Additive`|`Multiplicative`)(`Approx`)?
[INFO] [stdout]     | |____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]    --> src/structure/mod.rs:112:11
[INFO] [stdout]     |
[INFO] [stdout] 112 |   //! -        `Group`(`Additive`|`Multiplicative`)(`Approx`)?
[INFO] [stdout]     |  ___________^
[INFO] [stdout] 113 | | //! - `AbelianGroup`(`Additive`|`Multiplicative`)(`Approx`)?
[INFO] [stdout]     | |____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]    --> src/structure/mod.rs:138:11
[INFO] [stdout]     |
[INFO] [stdout] 138 |   //! -            `Ring`(`Approx`)?
[INFO] [stdout]     |  ___________^
[INFO] [stdout] 139 | | //! - `RingCommutative`(`Approx`)?
[INFO] [stdout]     | |____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]    --> src/structure/mod.rs:140:11
[INFO] [stdout]     |
[INFO] [stdout] 140 | //! -           `Field`(`Approx`)?
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout]     = note: error from rustc: unknown start of token: `
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "ee8acc685e19da11cdb0e43dd601d0d5f1d9e5618e9fb07ad934e1fe7b2f5d9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee8acc685e19da11cdb0e43dd601d0d5f1d9e5618e9fb07ad934e1fe7b2f5d9f", kill_on_drop: false }`
[INFO] [stdout] ee8acc685e19da11cdb0e43dd601d0d5f1d9e5618e9fb07ad934e1fe7b2f5d9f
