[INFO] cloning repository https://github.com/jmeyers35/Rust-BF-Interpreter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jmeyers35/Rust-BF-Interpreter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmeyers35%2FRust-BF-Interpreter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmeyers35%2FRust-BF-Interpreter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e361c46f2154ce4a07145909078c73d34722013f
[INFO] checking jmeyers35/Rust-BF-Interpreter against master#39b841dfe36f90a7cd111e7f0c55f32594f6e578 for pr-77035
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmeyers35%2FRust-BF-Interpreter" "/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/jmeyers35/Rust-BF-Interpreter on toolchain 39b841dfe36f90a7cd111e7f0c55f32594f6e578
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jmeyers35/Rust-BF-Interpreter
[INFO] finished tweaking git repo https://github.com/jmeyers35/Rust-BF-Interpreter
[INFO] tweaked toml for git repo https://github.com/jmeyers35/Rust-BF-Interpreter written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/jmeyers35/Rust-BF-Interpreter already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ec0f77598fdf10f01b6a7d6bb1face6255b7501bc7c5410f765c659f7a558776
[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" "ec0f77598fdf10f01b6a7d6bb1face6255b7501bc7c5410f765c659f7a558776", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec0f77598fdf10f01b6a7d6bb1face6255b7501bc7c5410f765c659f7a558776", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec0f77598fdf10f01b6a7d6bb1face6255b7501bc7c5410f765c659f7a558776", kill_on_drop: false }`
[INFO] [stdout] ec0f77598fdf10f01b6a7d6bb1face6255b7501bc7c5410f765c659f7a558776
[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" "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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 2d1292f10ce9405a5fe27d8bc957ca09f1106fcb6f71f7f6f07fa20f195ac6a5
[INFO] running `Command { std: "docker" "start" "-a" "2d1292f10ce9405a5fe27d8bc957ca09f1106fcb6f71f7f6f07fa20f195ac6a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking brainfuck-interpreter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum is never used: `IRInstr`
[INFO] [stdout]  --> src/ir.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum IRInstr {
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `convert`
[INFO] [stdout]   --> src/ir.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn convert(text: &Vec<u8>) -> Vec<IRInstr> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `count_consecutive_occurances`
[INFO] [stdout]   --> src/ir.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn count_consecutive_occurances(text: &[u8]) -> i8 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `IRInstr`
[INFO] [stdout]  --> src/ir.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum IRInstr {
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `convert`
[INFO] [stdout]   --> src/ir.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn convert(text: &Vec<u8>) -> Vec<IRInstr> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `count_consecutive_occurances`
[INFO] [stdout]   --> src/ir.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn count_consecutive_occurances(text: &[u8]) -> i8 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.22s
[INFO] running `Command { std: "docker" "inspect" "2d1292f10ce9405a5fe27d8bc957ca09f1106fcb6f71f7f6f07fa20f195ac6a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d1292f10ce9405a5fe27d8bc957ca09f1106fcb6f71f7f6f07fa20f195ac6a5", kill_on_drop: false }`
[INFO] [stdout] 2d1292f10ce9405a5fe27d8bc957ca09f1106fcb6f71f7f6f07fa20f195ac6a5