[INFO] fetching crate fern_sim_test 0.1.0...
[INFO] documenting fern_sim_test-0.1.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate fern_sim_test 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate fern_sim_test 0.1.0 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 fern_sim_test 0.1.0
[INFO] finished tweaking crates.io crate fern_sim_test 0.1.0
[INFO] tweaked toml for crates.io crate fern_sim_test 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate fern_sim_test 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] cc1d727e2356faaf28c78828a282b70e934b8b3edf561b8a1f66ad9ac59a600e
[INFO] running `Command { std: "docker" "start" "-a" "cc1d727e2356faaf28c78828a282b70e934b8b3edf561b8a1f66ad9ac59a600e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc1d727e2356faaf28c78828a282b70e934b8b3edf561b8a1f66ad9ac59a600e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc1d727e2356faaf28c78828a282b70e934b8b3edf561b8a1f66ad9ac59a600e", kill_on_drop: false }`
[INFO] [stdout] cc1d727e2356faaf28c78828a282b70e934b8b3edf561b8a1f66ad9ac59a600e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stdout] 5e3913c7eb365f878e0e9f15f497bd7860c05a7f920f8ce9096feb9c7fd98951
[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" "5e3913c7eb365f878e0e9f15f497bd7860c05a7f920f8ce9096feb9c7fd98951", kill_on_drop: false }`
[INFO] [stderr]  Documenting fern_sim_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking fern_sim_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `time`
[INFO] [stdout]   --> src/simulation.rs:37:38
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn apply_sunlight(&mut self, time: Duration) {
[INFO] [stdout]    |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_time`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `factory`
[INFO] [stdout]  --> src/spores.rs:9:22
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn produce_spore(factory: &mut i32) -> Spore {
[INFO] [stdout]   |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_factory`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `spore`
[INFO] [stdout]   --> src/spores.rs:13:21
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub(crate) fn genes(spore: &Spore) -> Vec<Gene> {
[INFO] [stdout]    |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_spore`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parent`
[INFO] [stdout]   --> src/spores.rs:17:14
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn recombine(parent: &mut Cell) {
[INFO] [stdout]    |              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `size`
[INFO] [stdout]  --> src/spores.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     size: f64,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `genes`
[INFO] [stdout]   --> src/spores.rs:13:15
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub(crate) fn genes(spore: &Spore) -> Vec<Gene> {
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `recombine`
[INFO] [stdout]   --> src/spores.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn recombine(parent: &mut Cell) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Cell`
[INFO] [stdout]   --> src/spores.rs:22:16
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub struct Cell {
[INFO] [stdout]    |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `distance_from_origin`
[INFO] [stdout]   --> src/spores.rs:27:16
[INFO] [stdout]    |
[INFO] [stdout] 27 |         pub fn distance_from_origin(&self) -> f64 {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Gene`
[INFO] [stdout]   --> src/spores.rs:32:16
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub struct Gene;
[INFO] [stdout]    |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.53s
[INFO] running `Command { std: "docker" "inspect" "5e3913c7eb365f878e0e9f15f497bd7860c05a7f920f8ce9096feb9c7fd98951", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e3913c7eb365f878e0e9f15f497bd7860c05a7f920f8ce9096feb9c7fd98951", kill_on_drop: false }`
[INFO] [stdout] 5e3913c7eb365f878e0e9f15f497bd7860c05a7f920f8ce9096feb9c7fd98951
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", 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] abc0a59bd52cfe17be416ad686f300ec7a2b5f615924773e489ef64fb541ebfd
[INFO] running `Command { std: "docker" "start" "-a" "abc0a59bd52cfe17be416ad686f300ec7a2b5f615924773e489ef64fb541ebfd", kill_on_drop: false }`
[INFO] [stderr]  Documenting fern_sim_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.51s
[INFO] running `Command { std: "docker" "inspect" "abc0a59bd52cfe17be416ad686f300ec7a2b5f615924773e489ef64fb541ebfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abc0a59bd52cfe17be416ad686f300ec7a2b5f615924773e489ef64fb541ebfd", kill_on_drop: false }`
[INFO] [stdout] abc0a59bd52cfe17be416ad686f300ec7a2b5f615924773e489ef64fb541ebfd