[INFO] cloning repository https://github.com/JoshuaHoffmann/brainfuck_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JoshuaHoffmann/brainfuck_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoshuaHoffmann%2Fbrainfuck_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoshuaHoffmann%2Fbrainfuck_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ae60bcb1a04fdc83f057fec308a506c0fda0a153
[INFO] checking JoshuaHoffmann/brainfuck_rust against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoshuaHoffmann%2Fbrainfuck_rust" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JoshuaHoffmann/brainfuck_rust on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JoshuaHoffmann/brainfuck_rust
[INFO] finished tweaking git repo https://github.com/JoshuaHoffmann/brainfuck_rust
[INFO] tweaked toml for git repo https://github.com/JoshuaHoffmann/brainfuck_rust written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/JoshuaHoffmann/brainfuck_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "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] 464931a69066dd45d96d7baa6da49594db4e7aaa47333164ee05eda1a9187eb0
[INFO] running `Command { std: "docker" "start" "-a" "464931a69066dd45d96d7baa6da49594db4e7aaa47333164ee05eda1a9187eb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "464931a69066dd45d96d7baa6da49594db4e7aaa47333164ee05eda1a9187eb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "464931a69066dd45d96d7baa6da49594db4e7aaa47333164ee05eda1a9187eb0", kill_on_drop: false }`
[INFO] [stdout] 464931a69066dd45d96d7baa6da49594db4e7aaa47333164ee05eda1a9187eb0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dce273a70a44df57d7dad8ff7af712510e27dcdea21ceb8ce3f96ad6c5199bd7
[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" "dce273a70a44df57d7dad8ff7af712510e27dcdea21ceb8ce3f96ad6c5199bd7", kill_on_drop: false }`
[INFO] [stderr]     Checking text_io v0.1.9
[INFO] [stderr]     Checking brainfuck_interpreter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/interpreter.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn new(p: Program) -> Interpreter {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `run_unsafe`
[INFO] [stdout]    --> src/interpreter.rs:140:12
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub fn run_unsafe(&mut self) {loop {self.step()} }
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/interpreter.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn new(p: Program) -> Interpreter {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `run_unsafe`
[INFO] [stdout]    --> src/interpreter.rs:140:12
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub fn run_unsafe(&mut self) {loop {self.step()} }
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `Command { std: "docker" "inspect" "dce273a70a44df57d7dad8ff7af712510e27dcdea21ceb8ce3f96ad6c5199bd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dce273a70a44df57d7dad8ff7af712510e27dcdea21ceb8ce3f96ad6c5199bd7", kill_on_drop: false }`
[INFO] [stdout] dce273a70a44df57d7dad8ff7af712510e27dcdea21ceb8ce3f96ad6c5199bd7