[INFO] cloning repository https://github.com/eiennohito/trie-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/eiennohito/trie-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feiennohito%2Ftrie-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feiennohito%2Ftrie-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c97c357a11a13a9bb01a5e84a6356a57748c98ad
[INFO] checking eiennohito/trie-playground against master#9c67cecd12d79f1bbc00a74f70e7ef9fff086a5a for pr-138458
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feiennohito%2Ftrie-playground" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/eiennohito/trie-playground on toolchain 9c67cecd12d79f1bbc00a74f70e7ef9fff086a5a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c67cecd12d79f1bbc00a74f70e7ef9fff086a5a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/eiennohito/trie-playground
[INFO] finished tweaking git repo https://github.com/eiennohito/trie-playground
[INFO] tweaked toml for git repo https://github.com/eiennohito/trie-playground written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/eiennohito/trie-playground 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" "+9c67cecd12d79f1bbc00a74f70e7ef9fff086a5a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+9c67cecd12d79f1bbc00a74f70e7ef9fff086a5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3dcbd8aa1f24f3856acadc4a2286c66405ba897cca73396a73079ae5513e2365
[INFO] running `Command { std: "docker" "start" "-a" "3dcbd8aa1f24f3856acadc4a2286c66405ba897cca73396a73079ae5513e2365", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3dcbd8aa1f24f3856acadc4a2286c66405ba897cca73396a73079ae5513e2365", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3dcbd8aa1f24f3856acadc4a2286c66405ba897cca73396a73079ae5513e2365", kill_on_drop: false }`
[INFO] [stdout] 3dcbd8aa1f24f3856acadc4a2286c66405ba897cca73396a73079ae5513e2365
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+9c67cecd12d79f1bbc00a74f70e7ef9fff086a5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea1d003e0459b1ff0225b952acd0273afbbf0eefd738ca9b4dcf05868e979b58
[INFO] running `Command { std: "docker" "start" "-a" "ea1d003e0459b1ff0225b952acd0273afbbf0eefd738ca9b4dcf05868e979b58", kill_on_drop: false }`
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking testrs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `BitPatternSearcher1` is never constructed
[INFO] [stdout]  --> src/main.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct BitPatternSearcher1<'a> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BitPatternSearcher1` is never constructed
[INFO] [stdout]  --> src/main.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct BitPatternSearcher1<'a> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `search` is never used
[INFO] [stdout]  --> src/main.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | impl <'a> BitPatternSearcher1<'a> {
[INFO] [stdout]   | --------------------------------- method in this implementation
[INFO] [stdout] 7 |     fn search(&self, target: &[u16]) -> Option<usize> {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TrieNode` is never constructed
[INFO] [stdout]   --> src/main.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | struct TrieNode {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TrieNode` has a derived impl for the trait `Default`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `search` is never used
[INFO] [stdout]  --> src/main.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | impl <'a> BitPatternSearcher1<'a> {
[INFO] [stdout]   | --------------------------------- method in this implementation
[INFO] [stdout] 7 |     fn search(&self, target: &[u16]) -> Option<usize> {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `child_indices` and `add` are never used
[INFO] [stdout]   --> src/main.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl TrieNode {
[INFO] [stdout]    | ------------- methods in this implementation
[INFO] [stdout] 31 |     pub fn child_indices(&self, out: &mut Vec<u8>) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn add(&mut self, data: &[u8], value: u32, weight: u64) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `HashTrie` is never constructed
[INFO] [stdout]   --> src/main.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | struct HashTrie {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `HashTrie` has a derived impl for the trait `Default`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TrieNode` is never constructed
[INFO] [stdout]   --> src/main.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | struct TrieNode {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TrieNode` has a derived impl for the trait `Default`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add` is never used
[INFO] [stdout]   --> src/main.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 59 | impl HashTrie {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] 60 |     pub fn add(&mut self, data: &[u8], value: u32, weight: u64) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `child_indices` and `add` are never used
[INFO] [stdout]   --> src/main.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl TrieNode {
[INFO] [stdout]    | ------------- methods in this implementation
[INFO] [stdout] 31 |     pub fn child_indices(&self, out: &mut Vec<u8>) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn add(&mut self, data: &[u8], value: u32, weight: u64) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `HashTrie` is never constructed
[INFO] [stdout]   --> src/main.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | struct HashTrie {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `HashTrie` has a derived impl for the trait `Default`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add` is never used
[INFO] [stdout]   --> src/main.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 59 | impl HashTrie {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] 60 |     pub fn add(&mut self, data: &[u8], value: u32, weight: u64) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "ea1d003e0459b1ff0225b952acd0273afbbf0eefd738ca9b4dcf05868e979b58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea1d003e0459b1ff0225b952acd0273afbbf0eefd738ca9b4dcf05868e979b58", kill_on_drop: false }`
[INFO] [stdout] ea1d003e0459b1ff0225b952acd0273afbbf0eefd738ca9b4dcf05868e979b58