[INFO] cloning repository https://github.com/srj31/ads
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/srj31/ads" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsrj31%2Fads", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsrj31%2Fads'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b72de83f6437540a37e4ad6ed1f69ab440fcca2c
[INFO] checking srj31/ads against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsrj31%2Fads" "/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/srj31/ads
[INFO] finished tweaking git repo https://github.com/srj31/ads
[INFO] tweaked toml for git repo https://github.com/srj31/ads written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/srj31/ads on toolchain 93086cfebfccb79083c59d0d3b2052944bba643c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/srj31/ads 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" "+93086cfebfccb79083c59d0d3b2052944bba643c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b117eb68433ff563ef5f6b938c2e996057327e226ff505343ce50931f287ac5a
[INFO] running `Command { std: "docker" "start" "-a" "b117eb68433ff563ef5f6b938c2e996057327e226ff505343ce50931f287ac5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b117eb68433ff563ef5f6b938c2e996057327e226ff505343ce50931f287ac5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b117eb68433ff563ef5f6b938c2e996057327e226ff505343ce50931f287ac5a", kill_on_drop: false }`
[INFO] [stdout] b117eb68433ff563ef5f6b938c2e996057327e226ff505343ce50931f287ac5a
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d01f077bb3bff62c061e6398f5c8f3e071fd6bed1f4d99f3ff71cbc50e96a385
[INFO] running `Command { std: "docker" "start" "-a" "d01f077bb3bff62c061e6398f5c8f3e071fd6bed1f4d99f3ff71cbc50e96a385", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking ads v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: struct `BKTree` is never constructed
[INFO] [stdout]  --> src/bk_trees/mod.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct BKTree {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]   = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `word` and `children` are never read
[INFO] [stdout]  --> src/bk_trees/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct BKTreeNode {
[INFO] [stdout]   |        ---------- fields in this struct
[INFO] [stdout] 4 |     word: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 5 |     children: HashMap<u32, BKTreeNode>,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `head` is never read
[INFO] [stdout]  --> src/bk_trees/mod.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct BKTree {
[INFO] [stdout]   |            ------ field in this struct
[INFO] [stdout] 9 |     head: BKTreeNode,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `insert`, and `search` are never used
[INFO] [stdout]   --> src/bk_trees/mod.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl BKTree {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 13 |     fn new(root: String) -> BKTree {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     fn insert(&mut self, word: String) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     fn search(&self, word: String, tolerance: u32) -> Vec<String> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_distance` is never used
[INFO] [stdout]   --> src/bk_trees/mod.rs:61:4
[INFO] [stdout]    |
[INFO] [stdout] 61 | fn calculate_distance(a: &str, b: &str) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ads` (lib) due to 1 previous error; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "d01f077bb3bff62c061e6398f5c8f3e071fd6bed1f4d99f3ff71cbc50e96a385", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d01f077bb3bff62c061e6398f5c8f3e071fd6bed1f4d99f3ff71cbc50e96a385", kill_on_drop: false }`
[INFO] [stdout] d01f077bb3bff62c061e6398f5c8f3e071fd6bed1f4d99f3ff71cbc50e96a385