[INFO] updating cached repository https://github.com/FuriouZz/wk-rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/FuriouZz/wk-rs
[INFO] [stderr]    7e41791..55db978  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 55db978889abc3d5d9963171b530bb1faadce11c
[INFO] checking FuriouZz/wk-rs against try#bcff76bad586cfb6874f179a4b66448e6b8a832c for pr-66919
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFuriouZz%2Fwk-rs" "/workspace/builds/worker-11/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FuriouZz/wk-rs on toolchain bcff76bad586cfb6874f179a4b66448e6b8a832c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bcff76bad586cfb6874f179a4b66448e6b8a832c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/FuriouZz/wk-rs
[INFO] finished tweaking git repo https://github.com/FuriouZz/wk-rs
[INFO] tweaked toml for git repo https://github.com/FuriouZz/wk-rs written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/FuriouZz/wk-rs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bcff76bad586cfb6874f179a4b66448e6b8a832c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+bcff76bad586cfb6874f179a4b66448e6b8a832c" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 642f8f097ff998ff2a7ff6b3155ee85956e5e0489ae79ca4a0beb20e753bf440
[INFO] running `"docker" "start" "-a" "642f8f097ff998ff2a7ff6b3155ee85956e5e0489ae79ca4a0beb20e753bf440"`
[INFO] [stderr]    Compiling syn v1.0.7
[INFO] [stderr]     Checking futures-core v0.3.1
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]     Checking futures-sink v0.3.1
[INFO] [stderr]     Checking futures-io v0.3.1
[INFO] [stderr]     Checking futures-channel v0.3.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling serde_derive v1.0.102
[INFO] [stderr]    Compiling futures-macro v0.3.1
[INFO] [stderr]     Checking futures-util v0.3.1
[INFO] [stderr]     Checking futures-executor v0.3.1
[INFO] [stderr]     Checking futures v0.3.1
[INFO] [stderr]     Checking serde_yaml v0.8.11
[INFO] [stderr]     Checking toml v0.5.5
[INFO] [stderr]     Checking wk v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variant is never constructed: `Command`
[INFO] [stderr]    --> src/importer.rs:144:3
[INFO] [stderr]     |
[INFO] [stderr] 144 |   Command(CommandBuilder),
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Concurrent`
[INFO] [stderr]    --> src/importer.rs:145:3
[INFO] [stderr]     |
[INFO] [stderr] 145 |   Concurrent(Concurrent),
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `load`
[INFO] [stderr]    --> src/importer.rs:158:8
[INFO] [stderr]     |
[INFO] [stderr] 158 | pub fn load<P>(
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `FILES`
[INFO] [stderr]    --> src/importer.rs:229:1
[INFO] [stderr]     |
[INFO] [stderr] 229 | const FILES: [&'static str; 2] = ["commands.yml", "Commands.yml"];
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `lookup_dir`
[INFO] [stderr]    --> src/importer.rs:231:8
[INFO] [stderr]     |
[INFO] [stderr] 231 | pub fn lookup_dir<P>(dir_path: P) -> Result<std::path::PathBuf, Error>
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `lookup`
[INFO] [stderr]    --> src/importer.rs:236:8
[INFO] [stderr]     |
[INFO] [stderr] 236 | pub fn lookup<P>(dir_path: P, patterns: Option<Vec<&str>>) -> Result<std::path::PathBuf, Error>
[INFO] [stderr]     |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `with_name`
[INFO] [stderr]   --> src/command.rs:49:3
[INFO] [stderr]    |
[INFO] [stderr] 49 | /   pub fn with_name<S>(&mut self, name: S) -> &mut Self
[INFO] [stderr] 50 | |   where
[INFO] [stderr] 51 | |     S: Into<String>,
[INFO] [stderr] 52 | |   {
[INFO] [stderr] 53 | |     self.name = name.into();
[INFO] [stderr] 54 | |     self
[INFO] [stderr] 55 | |   }
[INFO] [stderr]    | |___^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `with_source`
[INFO] [stderr]    --> src/command.rs:100:3
[INFO] [stderr]     |
[INFO] [stderr] 100 | /   pub fn with_source<S>(&mut self, source: S) -> &mut Self
[INFO] [stderr] 101 | |   where
[INFO] [stderr] 102 | |     S: Into<std::path::PathBuf>,
[INFO] [stderr] 103 | |   {
[INFO] [stderr] 104 | |     self.source = source.into();
[INFO] [stderr] 105 | |     self
[INFO] [stderr] 106 | |   }
[INFO] [stderr]     | |___^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_command`
[INFO] [stderr]    --> src/command.rs:164:3
[INFO] [stderr]     |
[INFO] [stderr] 164 |   pub fn to_command(&self) -> Command {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `execute`
[INFO] [stderr]    --> src/command.rs:244:3
[INFO] [stderr]     |
[INFO] [stderr] 244 |   pub fn execute(&mut self) {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `with_name`
[INFO] [stderr]   --> src/concurrent.rs:26:3
[INFO] [stderr]    |
[INFO] [stderr] 26 | /   pub fn with_name<S>(&mut self, name: S) -> &mut Self
[INFO] [stderr] 27 | |   where
[INFO] [stderr] 28 | |     S: Into<String>,
[INFO] [stderr] 29 | |   {
[INFO] [stderr] 30 | |     self.name = name.into();
[INFO] [stderr] 31 | |     self
[INFO] [stderr] 32 | |   }
[INFO] [stderr]    | |___^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `with_source`
[INFO] [stderr]   --> src/concurrent.rs:42:3
[INFO] [stderr]    |
[INFO] [stderr] 42 | /   pub fn with_source<S>(&mut self, source: S) -> &mut Self
[INFO] [stderr] 43 | |   where
[INFO] [stderr] 44 | |     S: Into<std::path::PathBuf>,
[INFO] [stderr] 45 | |   {
[INFO] [stderr] 46 | |     self.source = source.into();
[INFO] [stderr] 47 | |     self
[INFO] [stderr] 48 | |   }
[INFO] [stderr]    | |___^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Reader`
[INFO] [stderr]  --> src/utils/fs.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct Reader;
[INFO] [stderr]   |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `text`
[INFO] [stderr]   --> src/utils/fs.rs:7:3
[INFO] [stderr]    |
[INFO] [stderr] 7  | /   pub fn text<P>(path: P) -> Result<String, std::io::Error>
[INFO] [stderr] 8  | |   where P: AsRef<std::path::Path>
[INFO] [stderr] 9  | |   {
[INFO] [stderr] 10 | |     let mut file = std::fs::File::open(path)?;
[INFO] [stderr] ...  |
[INFO] [stderr] 13 | |     Ok(content)
[INFO] [stderr] 14 | |   }
[INFO] [stderr]    | |___^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `toml_value`
[INFO] [stderr]   --> src/utils/fs.rs:16:3
[INFO] [stderr]    |
[INFO] [stderr] 16 | /   pub fn toml_value<P>(path: P) -> Result<toml::Value, Box<dyn std::error::Error>>
[INFO] [stderr] 17 | |   where P: AsRef<std::path::Path>
[INFO] [stderr] 18 | |   {
[INFO] [stderr] 19 | |     let result = Reader::text(path)?;
[INFO] [stderr] 20 | |     let data = result.as_str().parse::<toml::Value>()?;
[INFO] [stderr] 21 | |     Ok(data)
[INFO] [stderr] 22 | |   }
[INFO] [stderr]    | |___^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ExtendMissingCommand`
[INFO] [stderr]  --> src/error.rs:7:3
[INFO] [stderr]   |
[INFO] [stderr] 7 |   ExtendMissingCommand(String),
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ExtendConcurrent`
[INFO] [stderr]  --> src/error.rs:8:3
[INFO] [stderr]   |
[INFO] [stderr] 8 |   ExtendConcurrent(String),
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LookupError`
[INFO] [stderr]  --> src/error.rs:9:3
[INFO] [stderr]   |
[INFO] [stderr] 9 |   LookupError(String),
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Executor`
[INFO] [stderr]   --> src/executor.rs:14:12
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub struct Executor {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/executor.rs:21:3
[INFO] [stderr]    |
[INFO] [stderr] 21 |   pub fn new() -> Self {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `MAX_QUEUED_TASKS`
[INFO] [stderr]   --> src/executor.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     const MAX_QUEUED_TASKS: usize = 10_000;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `spawn`
[INFO] [stderr]   --> src/executor.rs:31:3
[INFO] [stderr]    |
[INFO] [stderr] 31 |   pub fn spawn(&self, future: impl Future<Output = ()> + 'static + Send) {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `run`
[INFO] [stderr]   --> src/executor.rs:40:3
[INFO] [stderr]    |
[INFO] [stderr] 40 |   pub fn run(self) {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `future`
[INFO] [stderr]   --> src/executor.rs:58:3
[INFO] [stderr]    |
[INFO] [stderr] 58 |   future: Mutex<Option<BoxFuture<'static, ()>>>,
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `toml_value`
[INFO] [stderr]   --> src/utils/fs.rs:16:3
[INFO] [stderr]    |
[INFO] [stderr] 16 | /   pub fn toml_value<P>(path: P) -> Result<toml::Value, Box<dyn std::error::Error>>
[INFO] [stderr] 17 | |   where P: AsRef<std::path::Path>
[INFO] [stderr] 18 | |   {
[INFO] [stderr] 19 | |     let result = Reader::text(path)?;
[INFO] [stderr] 20 | |     let data = result.as_str().parse::<toml::Value>()?;
[INFO] [stderr] 21 | |     Ok(data)
[INFO] [stderr] 22 | |   }
[INFO] [stderr]    | |___^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 55.97s
[INFO] running `"docker" "inspect" "642f8f097ff998ff2a7ff6b3155ee85956e5e0489ae79ca4a0beb20e753bf440"`
[INFO] running `"docker" "rm" "-f" "642f8f097ff998ff2a7ff6b3155ee85956e5e0489ae79ca4a0beb20e753bf440"`
[INFO] [stdout] 642f8f097ff998ff2a7ff6b3155ee85956e5e0489ae79ca4a0beb20e753bf440