[INFO] cloning repository https://github.com/Amelia-Mowers/rust_engine_test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Amelia-Mowers/rust_engine_test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAmelia-Mowers%2Frust_engine_test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAmelia-Mowers%2Frust_engine_test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 18214ac3f681bb321b88952e616d36cafa57f76e
[INFO] checking Amelia-Mowers/rust_engine_test against master#3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0 for pr-143164
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAmelia-Mowers%2Frust_engine_test" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Amelia-Mowers/rust_engine_test
[INFO] finished tweaking git repo https://github.com/Amelia-Mowers/rust_engine_test
[INFO] tweaked toml for git repo https://github.com/Amelia-Mowers/rust_engine_test written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Amelia-Mowers/rust_engine_test on toolchain 3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Amelia-Mowers/rust_engine_test 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" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 99753ca9b904ae4e26e527c9e014e679c4afed0a4c07730aa502242d7a5c9c48
[INFO] running `Command { std: "docker" "start" "-a" "99753ca9b904ae4e26e527c9e014e679c4afed0a4c07730aa502242d7a5c9c48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "99753ca9b904ae4e26e527c9e014e679c4afed0a4c07730aa502242d7a5c9c48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99753ca9b904ae4e26e527c9e014e679c4afed0a4c07730aa502242d7a5c9c48", kill_on_drop: false }`
[INFO] [stdout] 99753ca9b904ae4e26e527c9e014e679c4afed0a4c07730aa502242d7a5c9c48
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2385ee7b3f52686ce666633f97fac2b9c58485a14eea4f76d94f0196a56d43f
[INFO] running `Command { std: "docker" "start" "-a" "f2385ee7b3f52686ce666633f97fac2b9c58485a14eea4f76d94f0196a56d43f", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_engine_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant `BASE_POWER` is never used
[INFO] [stdout]  --> src/utils/static_expandable_array.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | const BASE_POWER: usize = 4;
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BASE` is never used
[INFO] [stdout]  --> src/utils/static_expandable_array.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | const BASE: usize = 1 << BASE_POWER;
[INFO] [stdout]   |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StaticExpandableArray` is never constructed
[INFO] [stdout]  --> src/utils/static_expandable_array.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct StaticExpandableArray<T> where T: Default + Copy {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `push`, and `get` are never used
[INFO] [stdout]   --> src/utils/static_expandable_array.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl<T> StaticExpandableArray<T> where T: Default + Copy {
[INFO] [stdout]    | -------------------------------------------------------- associated items in this implementation
[INFO] [stdout] 12 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn push(&mut self, item: T) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |     pub fn get(&self, index: usize) -> Option<&T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Storage` is never constructed
[INFO] [stdout]    --> src/utils/static_expandable_array.rs:113:8
[INFO] [stdout]     |
[INFO] [stdout] 113 | struct Storage<T> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/utils/static_expandable_array.rs:184:8
[INFO] [stdout]     |
[INFO] [stdout] 183 | impl<T> Storage<T> {
[INFO] [stdout]     | ------------------ associated function in this implementation
[INFO] [stdout] 184 |     fn new() -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_segment` is never used
[INFO] [stdout]    --> src/utils/static_expandable_array.rs:254:4
[INFO] [stdout]     |
[INFO] [stdout] 254 | fn get_segment(index: usize) -> usize {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_lower_index_range` is never used
[INFO] [stdout]    --> src/utils/static_expandable_array.rs:261:4
[INFO] [stdout]     |
[INFO] [stdout] 261 | fn get_lower_index_range(segment: usize) -> usize {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "f2385ee7b3f52686ce666633f97fac2b9c58485a14eea4f76d94f0196a56d43f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2385ee7b3f52686ce666633f97fac2b9c58485a14eea4f76d94f0196a56d43f", kill_on_drop: false }`
[INFO] [stdout] f2385ee7b3f52686ce666633f97fac2b9c58485a14eea4f76d94f0196a56d43f
