[INFO] cloning repository https://github.com/dobrakmato/rust-brainfuck
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dobrakmato/rust-brainfuck" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdobrakmato%2Frust-brainfuck", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdobrakmato%2Frust-brainfuck'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8fa3572c26c888987b9519d610f3b59b9d5aefee
[INFO] documenting dobrakmato/rust-brainfuck against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdobrakmato%2Frust-brainfuck" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dobrakmato/rust-brainfuck on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dobrakmato/rust-brainfuck
[INFO] finished tweaking git repo https://github.com/dobrakmato/rust-brainfuck
[INFO] tweaked toml for git repo https://github.com/dobrakmato/rust-brainfuck written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/dobrakmato/rust-brainfuck already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 97b283ffdb45c0ddcc40096c237a2c19a78442e07d65fe53473db38371eff3ac
[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" "97b283ffdb45c0ddcc40096c237a2c19a78442e07d65fe53473db38371eff3ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97b283ffdb45c0ddcc40096c237a2c19a78442e07d65fe53473db38371eff3ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97b283ffdb45c0ddcc40096c237a2c19a78442e07d65fe53473db38371eff3ac", kill_on_drop: false }`
[INFO] [stdout] 97b283ffdb45c0ddcc40096c237a2c19a78442e07d65fe53473db38371eff3ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e92c5059b2207a04f76be02af97160ec125250178bc2d97a2d2ae77e55dbd452
[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" "e92c5059b2207a04f76be02af97160ec125250178bc2d97a2d2ae77e55dbd452", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]  Documenting bfjit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` fn uses type `compiler::Brainfuck`, which is not FFI-safe
[INFO] [stdout]    --> src/compiler.rs:146:31
[INFO] [stdout]     |
[INFO] [stdout] 146 |     pub extern "C" fn execute(self) {
[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] note: the type is defined here
[INFO] [stdout]    --> src/compiler.rs:126:1
[INFO] [stdout]     |
[INFO] [stdout] 126 | / pub struct Brainfuck {
[INFO] [stdout] 127 | |     pub program: MmapMut,
[INFO] [stdout] 128 | |     pub length: usize,
[INFO] [stdout] 129 | |     memory: [u8; MAX_MEMORY],
[INFO] [stdout] 130 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.91s
[INFO] running `Command { std: "docker" "inspect" "e92c5059b2207a04f76be02af97160ec125250178bc2d97a2d2ae77e55dbd452", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e92c5059b2207a04f76be02af97160ec125250178bc2d97a2d2ae77e55dbd452", kill_on_drop: false }`
[INFO] [stdout] e92c5059b2207a04f76be02af97160ec125250178bc2d97a2d2ae77e55dbd452