[INFO] cloning repository https://github.com/lewis150193/Rust-tutorial
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lewis150193/Rust-tutorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flewis150193%2FRust-tutorial", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flewis150193%2FRust-tutorial'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9532dfe3607dcf1547205523d8335b5d99eb638a
[INFO] checking lewis150193/Rust-tutorial against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flewis150193%2FRust-tutorial" "/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/lewis150193/Rust-tutorial on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lewis150193/Rust-tutorial
[INFO] finished tweaking git repo https://github.com/lewis150193/Rust-tutorial
[INFO] tweaked toml for git repo https://github.com/lewis150193/Rust-tutorial written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/lewis150193/Rust-tutorial already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 184f9f16efb1e28e96394ffb3c22691aa1ff744526aad9c0a74b623aba69fdae
[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" "184f9f16efb1e28e96394ffb3c22691aa1ff744526aad9c0a74b623aba69fdae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "184f9f16efb1e28e96394ffb3c22691aa1ff744526aad9c0a74b623aba69fdae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "184f9f16efb1e28e96394ffb3c22691aa1ff744526aad9c0a74b623aba69fdae", kill_on_drop: false }`
[INFO] [stdout] 184f9f16efb1e28e96394ffb3c22691aa1ff744526aad9c0a74b623aba69fdae
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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] 5bc2dbe8fda16d1e586318660c8567d57e45a2cd96bd5eb756ce815f2a800f2e
[INFO] running `Command { std: "docker" "start" "-a" "5bc2dbe8fda16d1e586318660c8567d57e45a2cd96bd5eb756ce815f2a800f2e", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-tut v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]  --> src/print.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run(){
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]  --> src/vars.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run(){
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `returnNumber` should have a snake case name
[INFO] [stdout]   --> src/data_types.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn returnNumber(number: i8) -> i8 {
[INFO] [stdout]    |        ^^^^^^^^^^^^ help: convert the identifier to snake case: `return_number`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]  --> src/print.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run(){
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]  --> src/vars.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run(){
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `returnNumber` should have a snake case name
[INFO] [stdout]   --> src/data_types.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn returnNumber(number: i8) -> i8 {
[INFO] [stdout]    |        ^^^^^^^^^^^^ help: convert the identifier to snake case: `return_number`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[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 0.46s
[INFO] running `Command { std: "docker" "inspect" "5bc2dbe8fda16d1e586318660c8567d57e45a2cd96bd5eb756ce815f2a800f2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bc2dbe8fda16d1e586318660c8567d57e45a2cd96bd5eb756ce815f2a800f2e", kill_on_drop: false }`
[INFO] [stdout] 5bc2dbe8fda16d1e586318660c8567d57e45a2cd96bd5eb756ce815f2a800f2e