[INFO] cloning repository https://github.com/Congee/hunt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Congee/hunt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCongee%2Fhunt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCongee%2Fhunt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a6be33058d6bb7f5fa55d7f3b93050ce0e75b748
[INFO] testing Congee/hunt against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCongee%2Fhunt" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Congee/hunt on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Congee/hunt
[INFO] finished tweaking git repo https://github.com/Congee/hunt
[INFO] tweaked toml for git repo https://github.com/Congee/hunt written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/Congee/hunt already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4fe54845ff87805b7cbdb84ca4c3f66b6f9011cf7040f6facd6948dcfc575ebb
[INFO] running `Command { std: "docker" "start" "-a" "4fe54845ff87805b7cbdb84ca4c3f66b6f9011cf7040f6facd6948dcfc575ebb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4fe54845ff87805b7cbdb84ca4c3f66b6f9011cf7040f6facd6948dcfc575ebb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fe54845ff87805b7cbdb84ca4c3f66b6f9011cf7040f6facd6948dcfc575ebb", kill_on_drop: false }`
[INFO] [stdout] 4fe54845ff87805b7cbdb84ca4c3f66b6f9011cf7040f6facd6948dcfc575ebb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac0c662b03866ecaa158cf07a7ec6dc95ac36ecf263b29d369161d46f853b0bf
[INFO] running `Command { std: "docker" "start" "-a" "ac0c662b03866ecaa158cf07a7ec6dc95ac36ecf263b29d369161d46f853b0bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling zstd-safe v4.1.1+zstd.1.5.0
[INFO] [stderr]    Compiling anyhow v1.0.48
[INFO] [stderr]    Compiling fst v0.4.7
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling fuzzy-matcher v0.3.7
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling jobserver v0.1.24
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling nix v0.23.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling zstd-sys v1.6.1+zstd.1.5.0
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling structopt v0.3.25
[INFO] [stderr]    Compiling zstd v0.9.0+zstd.1.5.0
[INFO] [stderr]    Compiling hunt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `anyhow::Result`
[INFO] [stdout]  --> src/dfa.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use anyhow::Result;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ch`
[INFO] [stdout]   --> src/store.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |         for ch in line.chars() {}
[INFO] [stdout]    |             ^^ help: if this is intentional, prefix it with an underscore: `_ch`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `path`
[INFO] [stdout]   --> src/main.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     path: std::path::PathBuf,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Opt` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/main.rs:14:10
[INFO] [stdout]    |
[INFO] [stdout] 14 | #[derive(Debug, StructOpt)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print`
[INFO] [stdout]   --> src/main.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn print<T: std::fmt::Display>(path: T) -> std::io::Result<()> {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `handle_event`
[INFO] [stdout]   --> src/main.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn handle_event(ev: &Event) -> std::io::Result<()> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]   --> src/main.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn run() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `prepare_fd`
[INFO] [stdout]   --> src/fanotify.rs:27:15
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub unsafe fn prepare_fd<P: AsRef<std::path::Path>>(__path: P) -> Result<libc::c_int> {
[INFO] [stdout]    |               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BATCH`
[INFO] [stdout]   --> src/fanotify.rs:71:1
[INFO] [stdout]    |
[INFO] [stdout] 71 | const BATCH: usize = 200;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Metadata`
[INFO] [stdout]   --> src/fanotify.rs:72:1
[INFO] [stdout]    |
[INFO] [stdout] 72 | type Metadata = libc::fanotify_event_metadata;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `FAN_EVENT_METADATA_LEN`
[INFO] [stdout]   --> src/fanotify.rs:73:1
[INFO] [stdout]    |
[INFO] [stdout] 73 | const FAN_EVENT_METADATA_LEN: usize = std::mem::size_of::<Metadata>();
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `handle_metadata`
[INFO] [stdout]   --> src/fanotify.rs:75:15
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub unsafe fn handle_metadata(buf: *const Metadata, tx: &Sender<Event>) -> Result<()> {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `poll`
[INFO] [stdout]    --> src/fanotify.rs:152:15
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub unsafe fn poll(fd: libc::c_int, tx: &Sender<Event>) -> Result<()> {
[INFO] [stdout]     |               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Create`
[INFO] [stdout]    --> src/fanotify.rs:172:5
[INFO] [stdout]     |
[INFO] [stdout] 172 |     Create(String),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `Event` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/fanotify.rs:170:10
[INFO] [stdout]     |
[INFO] [stdout] 170 | #[derive(Debug)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Delete`
[INFO] [stdout]    --> src/fanotify.rs:173:5
[INFO] [stdout]     |
[INFO] [stdout] 173 |     Delete(String),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `Event` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/fanotify.rs:170:10
[INFO] [stdout]     |
[INFO] [stdout] 170 | #[derive(Debug)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Move`
[INFO] [stdout]    --> src/fanotify.rs:174:5
[INFO] [stdout]     |
[INFO] [stdout] 174 |     Move(String, String),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `Event` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/fanotify.rs:170:10
[INFO] [stdout]     |
[INFO] [stdout] 170 | #[derive(Debug)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Trie`
[INFO] [stdout]   --> src/store.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Trie {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from`
[INFO] [stdout]   --> src/store.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn from(&self, lines: impl Iterator<Item = String>) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert_line`
[INFO] [stdout]   --> src/store.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn insert_line(&self, line: &str) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `State`
[INFO] [stdout]  --> src/dfa.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct State(String);
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Symbol`
[INFO] [stdout]  --> src/dfa.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Symbol(String);
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Dfa`
[INFO] [stdout]  --> src/dfa.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Dfa<State, Symbol> {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `S0`
[INFO] [stdout]   --> src/dfa.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     S0,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout] note: `MyState` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/dfa.rs:27:31
[INFO] [stdout]    |
[INFO] [stdout] 27 | #[derive(Hash, PartialEq, Eq, Clone)]
[INFO] [stdout]    |                               ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `S1`
[INFO] [stdout]   --> src/dfa.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     S1,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout] note: `MyState` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/dfa.rs:27:31
[INFO] [stdout]    |
[INFO] [stdout] 27 | #[derive(Hash, PartialEq, Eq, Clone)]
[INFO] [stdout]    |                               ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `S2`
[INFO] [stdout]   --> src/dfa.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     S2,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout] note: `MyState` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/dfa.rs:27:31
[INFO] [stdout]    |
[INFO] [stdout] 27 | #[derive(Hash, PartialEq, Eq, Clone)]
[INFO] [stdout]    |                               ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Zero`
[INFO] [stdout]   --> src/dfa.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     Zero,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `One`
[INFO] [stdout]   --> src/dfa.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     One,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/dfa.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `accepts`
[INFO] [stdout]   --> src/dfa.rs:58:8
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn accepts(&self, input: &[MySymbol]) -> bool {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     send.join();
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     recv.join();
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 30 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.61s
[INFO] running `Command { std: "docker" "inspect" "ac0c662b03866ecaa158cf07a7ec6dc95ac36ecf263b29d369161d46f853b0bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac0c662b03866ecaa158cf07a7ec6dc95ac36ecf263b29d369161d46f853b0bf", kill_on_drop: false }`
[INFO] [stdout] ac0c662b03866ecaa158cf07a7ec6dc95ac36ecf263b29d369161d46f853b0bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0fb9b1304d4f02d58ec6a640f4818e2df3a28ca4951cd54e7ef47625718ea586
[INFO] running `Command { std: "docker" "start" "-a" "0fb9b1304d4f02d58ec6a640f4818e2df3a28ca4951cd54e7ef47625718ea586", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling hunt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `anyhow::Result`
[INFO] [stdout]  --> src/dfa.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use anyhow::Result;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ch`
[INFO] [stdout]   --> src/store.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |         for ch in line.chars() {}
[INFO] [stdout]    |             ^^ help: if this is intentional, prefix it with an underscore: `_ch`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `path`
[INFO] [stdout]   --> src/main.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     path: std::path::PathBuf,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Opt` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/main.rs:14:10
[INFO] [stdout]    |
[INFO] [stdout] 14 | #[derive(Debug, StructOpt)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print`
[INFO] [stdout]   --> src/main.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn print<T: std::fmt::Display>(path: T) -> std::io::Result<()> {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `handle_event`
[INFO] [stdout]   --> src/main.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn handle_event(ev: &Event) -> std::io::Result<()> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]   --> src/main.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn run() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `prepare_fd`
[INFO] [stdout]   --> src/fanotify.rs:27:15
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub unsafe fn prepare_fd<P: AsRef<std::path::Path>>(__path: P) -> Result<libc::c_int> {
[INFO] [stdout]    |               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BATCH`
[INFO] [stdout]   --> src/fanotify.rs:71:1
[INFO] [stdout]    |
[INFO] [stdout] 71 | const BATCH: usize = 200;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Metadata`
[INFO] [stdout]   --> src/fanotify.rs:72:1
[INFO] [stdout]    |
[INFO] [stdout] 72 | type Metadata = libc::fanotify_event_metadata;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `FAN_EVENT_METADATA_LEN`
[INFO] [stdout]   --> src/fanotify.rs:73:1
[INFO] [stdout]    |
[INFO] [stdout] 73 | const FAN_EVENT_METADATA_LEN: usize = std::mem::size_of::<Metadata>();
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `handle_metadata`
[INFO] [stdout]   --> src/fanotify.rs:75:15
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub unsafe fn handle_metadata(buf: *const Metadata, tx: &Sender<Event>) -> Result<()> {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `poll`
[INFO] [stdout]    --> src/fanotify.rs:152:15
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub unsafe fn poll(fd: libc::c_int, tx: &Sender<Event>) -> Result<()> {
[INFO] [stdout]     |               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Create`
[INFO] [stdout]    --> src/fanotify.rs:172:5
[INFO] [stdout]     |
[INFO] [stdout] 172 |     Create(String),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `Event` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/fanotify.rs:170:10
[INFO] [stdout]     |
[INFO] [stdout] 170 | #[derive(Debug)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Delete`
[INFO] [stdout]    --> src/fanotify.rs:173:5
[INFO] [stdout]     |
[INFO] [stdout] 173 |     Delete(String),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `Event` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/fanotify.rs:170:10
[INFO] [stdout]     |
[INFO] [stdout] 170 | #[derive(Debug)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Move`
[INFO] [stdout]    --> src/fanotify.rs:174:5
[INFO] [stdout]     |
[INFO] [stdout] 174 |     Move(String, String),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `Event` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/fanotify.rs:170:10
[INFO] [stdout]     |
[INFO] [stdout] 170 | #[derive(Debug)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Trie`
[INFO] [stdout]   --> src/store.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Trie {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from`
[INFO] [stdout]   --> src/store.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn from(&self, lines: impl Iterator<Item = String>) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert_line`
[INFO] [stdout]   --> src/store.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn insert_line(&self, line: &str) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `State`
[INFO] [stdout]  --> src/dfa.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct State(String);
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Symbol`
[INFO] [stdout]  --> src/dfa.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Symbol(String);
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `states`
[INFO] [stdout]  --> src/dfa.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     states: Vec<State>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `input_symbols`
[INFO] [stdout]   --> src/dfa.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     input_symbols: HashSet<Symbol>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     send.join();
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     recv.join();
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 24 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.32s
[INFO] running `Command { std: "docker" "inspect" "0fb9b1304d4f02d58ec6a640f4818e2df3a28ca4951cd54e7ef47625718ea586", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fb9b1304d4f02d58ec6a640f4818e2df3a28ca4951cd54e7ef47625718ea586", kill_on_drop: false }`
[INFO] [stdout] 0fb9b1304d4f02d58ec6a640f4818e2df3a28ca4951cd54e7ef47625718ea586
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 832565b2454e339e07017330effe0c29bdadaa099be0fb9d9e699230050be566
[INFO] running `Command { std: "docker" "start" "-a" "832565b2454e339e07017330effe0c29bdadaa099be0fb9d9e699230050be566", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `anyhow::Result`
[INFO] [stderr]  --> src/dfa.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use anyhow::Result;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ch`
[INFO] [stderr]   --> src/store.rs:21:13
[INFO] [stderr]    |
[INFO] [stderr] 21 |         for ch in line.chars() {}
[INFO] [stderr]    |             ^^ help: if this is intentional, prefix it with an underscore: `_ch`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `path`
[INFO] [stderr]   --> src/main.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     path: std::path::PathBuf,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] note: `Opt` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/main.rs:14:10
[INFO] [stderr]    |
[INFO] [stderr] 14 | #[derive(Debug, StructOpt)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print`
[INFO] [stderr]   --> src/main.rs:21:4
[INFO] [stderr]    |
[INFO] [stderr] 21 | fn print<T: std::fmt::Display>(path: T) -> std::io::Result<()> {
[INFO] [stderr]    |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `handle_event`
[INFO] [stderr]   --> src/main.rs:26:4
[INFO] [stderr]    |
[INFO] [stderr] 26 | fn handle_event(ev: &Event) -> std::io::Result<()> {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run`
[INFO] [stderr]   --> src/main.rs:34:4
[INFO] [stderr]    |
[INFO] [stderr] 34 | fn run() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stderr]    |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `prepare_fd`
[INFO] [stderr]   --> src/fanotify.rs:27:15
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub unsafe fn prepare_fd<P: AsRef<std::path::Path>>(__path: P) -> Result<libc::c_int> {
[INFO] [stderr]    |               ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `BATCH`
[INFO] [stderr]   --> src/fanotify.rs:71:1
[INFO] [stderr]    |
[INFO] [stderr] 71 | const BATCH: usize = 200;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Metadata`
[INFO] [stderr]   --> src/fanotify.rs:72:1
[INFO] [stderr]    |
[INFO] [stderr] 72 | type Metadata = libc::fanotify_event_metadata;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `FAN_EVENT_METADATA_LEN`
[INFO] [stderr]   --> src/fanotify.rs:73:1
[INFO] [stderr]    |
[INFO] [stderr] 73 | const FAN_EVENT_METADATA_LEN: usize = std::mem::size_of::<Metadata>();
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `handle_metadata`
[INFO] [stderr]   --> src/fanotify.rs:75:15
[INFO] [stderr]    |
[INFO] [stderr] 75 | pub unsafe fn handle_metadata(buf: *const Metadata, tx: &Sender<Event>) -> Result<()> {
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `poll`
[INFO] [stderr]    --> src/fanotify.rs:152:15
[INFO] [stderr]     |
[INFO] [stderr] 152 | pub unsafe fn poll(fd: libc::c_int, tx: &Sender<Event>) -> Result<()> {
[INFO] [stderr]     |               ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Create`
[INFO] [stderr]    --> src/fanotify.rs:172:5
[INFO] [stderr]     |
[INFO] [stderr] 172 |     Create(String),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: `Event` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    --> src/fanotify.rs:170:10
[INFO] [stderr]     |
[INFO] [stderr] 170 | #[derive(Debug)]
[INFO] [stderr]     |          ^^^^^
[INFO] [stderr]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Delete`
[INFO] [stderr]    --> src/fanotify.rs:173:5
[INFO] [stderr]     |
[INFO] [stderr] 173 |     Delete(String),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: `Event` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    --> src/fanotify.rs:170:10
[INFO] [stderr]     |
[INFO] [stderr] 170 | #[derive(Debug)]
[INFO] [stderr]     |          ^^^^^
[INFO] [stderr]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Move`
[INFO] [stderr]    --> src/fanotify.rs:174:5
[INFO] [stderr]     |
[INFO] [stderr] 174 |     Move(String, String),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: `Event` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    --> src/fanotify.rs:170:10
[INFO] [stderr]     |
[INFO] [stderr] 170 | #[derive(Debug)]
[INFO] [stderr]     |          ^^^^^
[INFO] [stderr]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Trie`
[INFO] [stderr]   --> src/store.rs:10:8
[INFO] [stderr]    |
[INFO] [stderr] 10 | struct Trie {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `from`
[INFO] [stderr]   --> src/store.rs:17:8
[INFO] [stderr]    |
[INFO] [stderr] 17 |     fn from(&self, lines: impl Iterator<Item = String>) {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `insert_line`
[INFO] [stderr]   --> src/store.rs:20:8
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn insert_line(&self, line: &str) {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `State`
[INFO] [stderr]  --> src/dfa.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | struct State(String);
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Symbol`
[INFO] [stderr]  --> src/dfa.rs:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | struct Symbol(String);
[INFO] [stderr]   |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `states`
[INFO] [stderr]  --> src/dfa.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     states: Vec<State>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `input_symbols`
[INFO] [stderr]   --> src/dfa.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     input_symbols: HashSet<Symbol>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/main.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 |     send.join();
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/main.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     recv.join();
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `hunt` (bin "hunt" test) generated 24 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hunt-c8c9705c29997f51)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test dfa::tests::test_dfa ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "832565b2454e339e07017330effe0c29bdadaa099be0fb9d9e699230050be566", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "832565b2454e339e07017330effe0c29bdadaa099be0fb9d9e699230050be566", kill_on_drop: false }`
[INFO] [stdout] 832565b2454e339e07017330effe0c29bdadaa099be0fb9d9e699230050be566