[INFO] updating cached repository https://github.com/Mec-iS/rust-algos-illuminated
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e9b7e2a77cfe1d878f4b30043b1e25a1561476db
[INFO] documenting Mec-iS/rust-algos-illuminated against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMec-iS%2Frust-algos-illuminated" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Mec-iS/rust-algos-illuminated on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Mec-iS/rust-algos-illuminated
[INFO] finished tweaking git repo https://github.com/Mec-iS/rust-algos-illuminated
[INFO] tweaked toml for git repo https://github.com/Mec-iS/rust-algos-illuminated written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/Mec-iS/rust-algos-illuminated already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 948a814fc93f0ba05b99aa0d0af9fac52fe9fb9e0589092c5cd27341cc4d2ded
[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" "948a814fc93f0ba05b99aa0d0af9fac52fe9fb9e0589092c5cd27341cc4d2ded", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "948a814fc93f0ba05b99aa0d0af9fac52fe9fb9e0589092c5cd27341cc4d2ded", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "948a814fc93f0ba05b99aa0d0af9fac52fe9fb9e0589092c5cd27341cc4d2ded", kill_on_drop: false }`
[INFO] [stdout] 948a814fc93f0ba05b99aa0d0af9fac52fe9fb9e0589092c5cd27341cc4d2ded
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6de9d381800b0d9fb7112d3c00f76eb1b7f84fdb1f7b65a8c4434cf0940b3737
[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" "6de9d381800b0d9fb7112d3c00f76eb1b7f84fdb1f7b65a8c4434cf0940b3737", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Documenting rust-algos-illuminated v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` fn uses type `std::vec::Vec<i32>`, which is not FFI-safe
[INFO] [stdout]    --> src/chapter_one/mod.rs:106:34
[INFO] [stdout]     |
[INFO] [stdout] 106 | pub extern fn selectionSort(arr: Vec<i32>) -> Vec<i32> {
[INFO] [stdout]     |                                  ^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]     = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]     = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `std::vec::Vec<i32>`, which is not FFI-safe
[INFO] [stdout]    --> src/chapter_one/mod.rs:106:47
[INFO] [stdout]     |
[INFO] [stdout] 106 | pub extern fn selectionSort(arr: Vec<i32>) -> Vec<i32> {
[INFO] [stdout]     |                                               ^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]     = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `std::vec::Vec<i32>`, which is not FFI-safe
[INFO] [stdout]    --> src/chapter_one/mod.rs:143:39
[INFO] [stdout]     |
[INFO] [stdout] 143 | pub extern fn MergeSelectionSort(arr: Vec<i32>) -> Vec<i32> {
[INFO] [stdout]     |                                       ^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]     = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `std::vec::Vec<i32>`, which is not FFI-safe
[INFO] [stdout]    --> src/chapter_one/mod.rs:143:52
[INFO] [stdout]     |
[INFO] [stdout] 143 | pub extern fn MergeSelectionSort(arr: Vec<i32>) -> Vec<i32> {
[INFO] [stdout]     |                                                    ^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]     = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `std::vec::Vec<i32>`, which is not FFI-safe
[INFO] [stdout]    --> src/chapter_one/mod.rs:170:24
[INFO] [stdout]     |
[INFO] [stdout] 170 | pub extern fn Merge(c: Vec<i32>, d: Vec<i32>) -> Vec<i32> {
[INFO] [stdout]     |                        ^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]     = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `std::vec::Vec<i32>`, which is not FFI-safe
[INFO] [stdout]    --> src/chapter_one/mod.rs:170:37
[INFO] [stdout]     |
[INFO] [stdout] 170 | pub extern fn Merge(c: Vec<i32>, d: Vec<i32>) -> Vec<i32> {
[INFO] [stdout]     |                                     ^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]     = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `std::vec::Vec<i32>`, which is not FFI-safe
[INFO] [stdout]    --> src/chapter_one/mod.rs:170:50
[INFO] [stdout]     |
[INFO] [stdout] 170 | pub extern fn Merge(c: Vec<i32>, d: Vec<i32>) -> Vec<i32> {
[INFO] [stdout]     |                                                  ^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]     = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.92s
[INFO] running `Command { std: "docker" "inspect" "6de9d381800b0d9fb7112d3c00f76eb1b7f84fdb1f7b65a8c4434cf0940b3737", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6de9d381800b0d9fb7112d3c00f76eb1b7f84fdb1f7b65a8c4434cf0940b3737", kill_on_drop: false }`
[INFO] [stdout] 6de9d381800b0d9fb7112d3c00f76eb1b7f84fdb1f7b65a8c4434cf0940b3737