[INFO] cloning repository https://github.com/Metacrafters/Module4-Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Metacrafters/Module4-Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMetacrafters%2FModule4-Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMetacrafters%2FModule4-Rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1b5ba6f3831aac6b9c557b30bf11b8b138452cef
[INFO] checking Metacrafters/Module4-Rust against try#e658ebe4ffa1b515cd2ef06dd428d0d063e2ae6b for pr-144896
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMetacrafters%2FModule4-Rust" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Metacrafters/Module4-Rust
[INFO] finished tweaking git repo https://github.com/Metacrafters/Module4-Rust
[INFO] tweaked toml for git repo https://github.com/Metacrafters/Module4-Rust written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Metacrafters/Module4-Rust on toolchain e658ebe4ffa1b515cd2ef06dd428d0d063e2ae6b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e658ebe4ffa1b515cd2ef06dd428d0d063e2ae6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Metacrafters/Module4-Rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e658ebe4ffa1b515cd2ef06dd428d0d063e2ae6b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+e658ebe4ffa1b515cd2ef06dd428d0d063e2ae6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac8425144f77593873803f6e269c8648b75cd507301e1b5b0193add7d5a71b78
[INFO] running `Command { std: "docker" "start" "-a" "ac8425144f77593873803f6e269c8648b75cd507301e1b5b0193add7d5a71b78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac8425144f77593873803f6e269c8648b75cd507301e1b5b0193add7d5a71b78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac8425144f77593873803f6e269c8648b75cd507301e1b5b0193add7d5a71b78", kill_on_drop: false }`
[INFO] [stdout] ac8425144f77593873803f6e269c8648b75cd507301e1b5b0193add7d5a71b78
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "RUSTDOCFLAGS=--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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+e658ebe4ffa1b515cd2ef06dd428d0d063e2ae6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 74fea125bacf4a10d3dd17be2220d1fb1d9f9b62fc1409aef2edce1da9bc11ae
[INFO] running `Command { std: "docker" "start" "-a" "74fea125bacf4a10d3dd17be2220d1fb1d9f9b62fc1409aef2edce1da9bc11ae", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_part2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `analyze_slice` is never used
[INFO] [stdout]  --> src/slice.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn analyze_slice(slice: &[i32]) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `slice_example` is never used
[INFO] [stdout]  --> src/slice.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn slice_example() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `matching_examples` is never used
[INFO] [stdout]  --> src/matching.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn matching_examples() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `analyze_slice` is never used
[INFO] [stdout]  --> src/slice.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn analyze_slice(slice: &[i32]) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `slice_example` is never used
[INFO] [stdout]  --> src/slice.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn slice_example() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `matching_examples` is never used
[INFO] [stdout]  --> src/matching.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn matching_examples() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] running `Command { std: "docker" "inspect" "74fea125bacf4a10d3dd17be2220d1fb1d9f9b62fc1409aef2edce1da9bc11ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74fea125bacf4a10d3dd17be2220d1fb1d9f9b62fc1409aef2edce1da9bc11ae", kill_on_drop: false }`
[INFO] [stdout] 74fea125bacf4a10d3dd17be2220d1fb1d9f9b62fc1409aef2edce1da9bc11ae