[INFO] cloning repository https://github.com/ArchUsr64/longest_prefix_matcher
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ArchUsr64/longest_prefix_matcher" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArchUsr64%2Flongest_prefix_matcher", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArchUsr64%2Flongest_prefix_matcher'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 443dc7f15d59919fb175012ffc82b59b3611a35a
[INFO] checking ArchUsr64/longest_prefix_matcher against master#3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0 for pr-143164
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArchUsr64%2Flongest_prefix_matcher" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ArchUsr64/longest_prefix_matcher
[INFO] finished tweaking git repo https://github.com/ArchUsr64/longest_prefix_matcher
[INFO] tweaked toml for git repo https://github.com/ArchUsr64/longest_prefix_matcher written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ArchUsr64/longest_prefix_matcher 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/ArchUsr64/longest_prefix_matcher 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 4ba490e6ded459322a8055008220c998202ac9c710db1541f98f04ae0c5150e1
[INFO] running `Command { std: "docker" "start" "-a" "4ba490e6ded459322a8055008220c998202ac9c710db1541f98f04ae0c5150e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ba490e6ded459322a8055008220c998202ac9c710db1541f98f04ae0c5150e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ba490e6ded459322a8055008220c998202ac9c710db1541f98f04ae0c5150e1", kill_on_drop: false }`
[INFO] [stdout] 4ba490e6ded459322a8055008220c998202ac9c710db1541f98f04ae0c5150e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] e205241596564750b79c28aac1db79e9e129f6609569f01afc560f4a01cc15cd
[INFO] running `Command { std: "docker" "start" "-a" "e205241596564750b79c28aac1db79e9e129f6609569f01afc560f4a01cc15cd", kill_on_drop: false }`
[INFO] [stderr]     Checking longest_prefix_matcher v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant `STRID_SIZE` is never used
[INFO] [stdout]  --> src/main.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | const STRID_SIZE: usize = 3;
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MultiBitTrie` is never constructed
[INFO] [stdout]   --> src/main.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct MultiBitTrie {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `insert` are never used
[INFO] [stdout]   --> src/main.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | impl MultiBitTrie {
[INFO] [stdout]    | ----------------- associated items in this implementation
[INFO] [stdout] 30 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     fn insert(&mut self, value: &[bool]) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LinearLookup` is never constructed
[INFO] [stdout]   --> src/main.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | struct LinearLookup<'a> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `delete` is never used
[INFO] [stdout]   --> src/main.rs:71:8
[INFO] [stdout]    |
[INFO] [stdout] 68 | trait LookUpTable<'table> {
[INFO] [stdout]    |       ----------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 71 |     fn delete(&mut self, _: &'table [bool]) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/main.rs:70:20
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn search<'a>(&'a self, value: &'a [bool]) -> &[bool];
[INFO] [stdout]    |                    ^^               ^^            ------- the lifetime gets resolved as `'a`
[INFO] [stdout]    |                    |                |
[INFO] [stdout]    |                    |                these lifetimes flow to the output
[INFO] [stdout]    |                    these lifetimes flow to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn search<'a>(&'a self, value: &'a [bool]) -> &'a [bool];
[INFO] [stdout]    |                                                    ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/main.rs:100:20
[INFO] [stdout]     |
[INFO] [stdout] 100 |     fn search<'a>(&'a self, value: &'a [bool]) -> &[bool] {
[INFO] [stdout]     |                    ^^               ^^            ------- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                    |                |
[INFO] [stdout]     |                    |                these lifetimes flow to the output
[INFO] [stdout]     |                    these lifetimes flow to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 100 |     fn search<'a>(&'a self, value: &'a [bool]) -> &'a [bool] {
[INFO] [stdout]     |                                                    ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/main.rs:128:20
[INFO] [stdout]     |
[INFO] [stdout] 128 |     fn search<'a>(&'a self, value: &'a [bool]) -> &[bool] {
[INFO] [stdout]     |                    ^^               ^^            ------- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                    |                |
[INFO] [stdout]     |                    |                these lifetimes flow to the output
[INFO] [stdout]     |                    these lifetimes flow to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 128 |     fn search<'a>(&'a self, value: &'a [bool]) -> &'a [bool] {
[INFO] [stdout]     |                                                    ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `STRID_SIZE` is never used
[INFO] [stdout]  --> src/main.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | const STRID_SIZE: usize = 3;
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MultiBitTrie` is never constructed
[INFO] [stdout]   --> src/main.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct MultiBitTrie {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `insert` are never used
[INFO] [stdout]   --> src/main.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | impl MultiBitTrie {
[INFO] [stdout]    | ----------------- associated items in this implementation
[INFO] [stdout] 30 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     fn insert(&mut self, value: &[bool]) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LinearLookup` is never constructed
[INFO] [stdout]   --> src/main.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | struct LinearLookup<'a> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `delete` is never used
[INFO] [stdout]   --> src/main.rs:71:8
[INFO] [stdout]    |
[INFO] [stdout] 68 | trait LookUpTable<'table> {
[INFO] [stdout]    |       ----------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 71 |     fn delete(&mut self, _: &'table [bool]) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/main.rs:70:20
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn search<'a>(&'a self, value: &'a [bool]) -> &[bool];
[INFO] [stdout]    |                    ^^               ^^            ------- the lifetime gets resolved as `'a`
[INFO] [stdout]    |                    |                |
[INFO] [stdout]    |                    |                these lifetimes flow to the output
[INFO] [stdout]    |                    these lifetimes flow to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn search<'a>(&'a self, value: &'a [bool]) -> &'a [bool];
[INFO] [stdout]    |                                                    ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/main.rs:100:20
[INFO] [stdout]     |
[INFO] [stdout] 100 |     fn search<'a>(&'a self, value: &'a [bool]) -> &[bool] {
[INFO] [stdout]     |                    ^^               ^^            ------- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                    |                |
[INFO] [stdout]     |                    |                these lifetimes flow to the output
[INFO] [stdout]     |                    these lifetimes flow to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 100 |     fn search<'a>(&'a self, value: &'a [bool]) -> &'a [bool] {
[INFO] [stdout]     |                                                    ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/main.rs:128:20
[INFO] [stdout]     |
[INFO] [stdout] 128 |     fn search<'a>(&'a self, value: &'a [bool]) -> &[bool] {
[INFO] [stdout]     |                    ^^               ^^            ------- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                    |                |
[INFO] [stdout]     |                    |                these lifetimes flow to the output
[INFO] [stdout]     |                    these lifetimes flow to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 128 |     fn search<'a>(&'a self, value: &'a [bool]) -> &'a [bool] {
[INFO] [stdout]     |                                                    ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "e205241596564750b79c28aac1db79e9e129f6609569f01afc560f4a01cc15cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e205241596564750b79c28aac1db79e9e129f6609569f01afc560f4a01cc15cd", kill_on_drop: false }`
[INFO] [stdout] e205241596564750b79c28aac1db79e9e129f6609569f01afc560f4a01cc15cd
