[INFO] crate gary-plugin-docker 0.0.2 is already in cache
[INFO] checking gary-plugin-docker-0.0.2 against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] extracting crate gary-plugin-docker 0.0.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate gary-plugin-docker 0.0.2 on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate gary-plugin-docker 0.0.2
[INFO] finished tweaking crates.io crate gary-plugin-docker 0.0.2
[INFO] tweaked toml for crates.io crate gary-plugin-docker 0.0.2 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 524dfcd2aa3cea37ac9673a084f51fded747696d6e19380bdae5ba62f1d44452
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "524dfcd2aa3cea37ac9673a084f51fded747696d6e19380bdae5ba62f1d44452"`
[INFO] [stderr]     Checking half v1.5.0
[INFO] [stderr]     Checking whoami v0.5.3
[INFO] [stderr]     Checking serde_yaml v0.8.11
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]     Checking hyperlocal v0.6.0
[INFO] [stderr]     Checking serde_cbor v0.9.0
[INFO] [stderr]     Checking yup-hyper-mock v3.15.0
[INFO] [stderr]     Checking bollard v0.3.3
[INFO] [stderr]     Checking gary-core v0.0.1
[INFO] [stderr]     Checking gary-plugin-docker v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `HostConfig`, `LogOutput`, `LogsOptions`
[INFO] [stderr]  --> src/lib.rs:7:37
[INFO] [stderr]   |
[INFO] [stderr] 7 |     Config, CreateContainerOptions, HostConfig, LogOutput, LogsOptions, StartContainerOptions,
[INFO] [stderr]   |                                     ^^^^^^^^^^  ^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `futures::Future`
[INFO] [stderr]   --> src/lib.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use futures::Future;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tokio::prelude::*`
[INFO] [stderr]   --> src/lib.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use tokio::prelude::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/lib.rs:81:9
[INFO] [stderr]    |
[INFO] [stderr] 77 | /         match results {
[INFO] [stderr] 78 | |             Ok(_) => return None,
[INFO] [stderr] 79 | |             Err(_) => return Some(RuntimeError::new(RuntimeErrorType::Unknown)),
[INFO] [stderr] 80 | |         }
[INFO] [stderr]    | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stderr] 81 |           return Some(RuntimeError::new(RuntimeErrorType::Unknown));
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]   --> src/lib.rs:56:9
[INFO] [stderr]    |
[INFO] [stderr] 56 |         id: String,
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `config`
[INFO] [stderr]   --> src/lib.rs:57:9
[INFO] [stderr]    |
[INFO] [stderr] 57 |         config: &RuntimeConfig,
[INFO] [stderr]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `options`
[INFO] [stderr]   --> src/lib.rs:58:9
[INFO] [stderr]    |
[INFO] [stderr] 58 |         options: &Option<SandboxConfig>,
[INFO] [stderr]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_options`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `res`
[INFO] [stderr]   --> src/lib.rs:69:13
[INFO] [stderr]    |
[INFO] [stderr] 69 |         let res = self.runner.block_on(
[INFO] [stderr]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]   --> src/lib.rs:63:34
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn start_workload(&mut self, id: String) -> Option<RuntimeError> {
[INFO] [stderr]    |                                  ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]   --> src/lib.rs:84:29
[INFO] [stderr]    |
[INFO] [stderr] 84 |     fn stop_workload(&self, id: String, timeout: i32) -> Option<RuntimeError> {
[INFO] [stderr]    |                             ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `timeout`
[INFO] [stderr]   --> src/lib.rs:84:41
[INFO] [stderr]    |
[INFO] [stderr] 84 |     fn stop_workload(&self, id: String, timeout: i32) -> Option<RuntimeError> {
[INFO] [stderr]    |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_timeout`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]   --> src/lib.rs:88:31
[INFO] [stderr]    |
[INFO] [stderr] 88 |     fn remove_workload(&self, id: String) -> Option<RuntimeError> {
[INFO] [stderr]    |                               ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]   --> src/lib.rs:92:31
[INFO] [stderr]    |
[INFO] [stderr] 92 |     fn status_workload(&self, id: String) -> Result<WorkloadStatus, RuntimeError> {
[INFO] [stderr]    |                               ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]   --> src/lib.rs:99:9
[INFO] [stderr]    |
[INFO] [stderr] 99 |         id: String,
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rez`
[INFO] [stderr]    --> src/lib.rs:100:9
[INFO] [stderr]     |
[INFO] [stderr] 100 |         rez: WorkloadResources,
[INFO] [stderr]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_rez`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]    --> src/lib.rs:107:9
[INFO] [stderr]     |
[INFO] [stderr] 107 |         id: String,
[INFO] [stderr]     |         ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cmd`
[INFO] [stderr]    --> src/lib.rs:108:9
[INFO] [stderr]     |
[INFO] [stderr] 108 |         cmd: &[String],
[INFO] [stderr]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_cmd`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `timeout`
[INFO] [stderr]    --> src/lib.rs:109:9
[INFO] [stderr]     |
[INFO] [stderr] 109 |         timeout: i32,
[INFO] [stderr]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_timeout`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:23:13
[INFO] [stderr]    |
[INFO] [stderr] 23 |         let mut doc = Docker::connect_with_local_defaults().unwrap();
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:24:13
[INFO] [stderr]    |
[INFO] [stderr] 24 |         let mut rt = Runtime::new().unwrap();
[INFO] [stderr]    |             ----^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `HostConfig`, `LogOutput`, `LogsOptions`
[INFO] [stderr]  --> src/lib.rs:7:37
[INFO] [stderr]   |
[INFO] [stderr] 7 |     Config, CreateContainerOptions, HostConfig, LogOutput, LogsOptions, StartContainerOptions,
[INFO] [stderr]   |                                     ^^^^^^^^^^  ^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `futures::Future`
[INFO] [stderr]   --> src/lib.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use futures::Future;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tokio::prelude::*`
[INFO] [stderr]   --> src/lib.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use tokio::prelude::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/lib.rs:81:9
[INFO] [stderr]    |
[INFO] [stderr] 77 | /         match results {
[INFO] [stderr] 78 | |             Ok(_) => return None,
[INFO] [stderr] 79 | |             Err(_) => return Some(RuntimeError::new(RuntimeErrorType::Unknown)),
[INFO] [stderr] 80 | |         }
[INFO] [stderr]    | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stderr] 81 |           return Some(RuntimeError::new(RuntimeErrorType::Unknown));
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]   --> src/lib.rs:56:9
[INFO] [stderr]    |
[INFO] [stderr] 56 |         id: String,
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `config`
[INFO] [stderr]   --> src/lib.rs:57:9
[INFO] [stderr]    |
[INFO] [stderr] 57 |         config: &RuntimeConfig,
[INFO] [stderr]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `options`
[INFO] [stderr]   --> src/lib.rs:58:9
[INFO] [stderr]    |
[INFO] [stderr] 58 |         options: &Option<SandboxConfig>,
[INFO] [stderr]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_options`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `res`
[INFO] [stderr]   --> src/lib.rs:69:13
[INFO] [stderr]    |
[INFO] [stderr] 69 |         let res = self.runner.block_on(
[INFO] [stderr]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]   --> src/lib.rs:63:34
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn start_workload(&mut self, id: String) -> Option<RuntimeError> {
[INFO] [stderr]    |                                  ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]   --> src/lib.rs:84:29
[INFO] [stderr]    |
[INFO] [stderr] 84 |     fn stop_workload(&self, id: String, timeout: i32) -> Option<RuntimeError> {
[INFO] [stderr]    |                             ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `timeout`
[INFO] [stderr]   --> src/lib.rs:84:41
[INFO] [stderr]    |
[INFO] [stderr] 84 |     fn stop_workload(&self, id: String, timeout: i32) -> Option<RuntimeError> {
[INFO] [stderr]    |                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_timeout`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]   --> src/lib.rs:88:31
[INFO] [stderr]    |
[INFO] [stderr] 88 |     fn remove_workload(&self, id: String) -> Option<RuntimeError> {
[INFO] [stderr]    |                               ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]   --> src/lib.rs:92:31
[INFO] [stderr]    |
[INFO] [stderr] 92 |     fn status_workload(&self, id: String) -> Result<WorkloadStatus, RuntimeError> {
[INFO] [stderr]    |                               ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]   --> src/lib.rs:99:9
[INFO] [stderr]    |
[INFO] [stderr] 99 |         id: String,
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rez`
[INFO] [stderr]    --> src/lib.rs:100:9
[INFO] [stderr]     |
[INFO] [stderr] 100 |         rez: WorkloadResources,
[INFO] [stderr]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_rez`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]    --> src/lib.rs:107:9
[INFO] [stderr]     |
[INFO] [stderr] 107 |         id: String,
[INFO] [stderr]     |         ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cmd`
[INFO] [stderr]    --> src/lib.rs:108:9
[INFO] [stderr]     |
[INFO] [stderr] 108 |         cmd: &[String],
[INFO] [stderr]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_cmd`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `timeout`
[INFO] [stderr]    --> src/lib.rs:109:9
[INFO] [stderr]     |
[INFO] [stderr] 109 |         timeout: i32,
[INFO] [stderr]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_timeout`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:23:13
[INFO] [stderr]    |
[INFO] [stderr] 23 |         let mut doc = Docker::connect_with_local_defaults().unwrap();
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:24:13
[INFO] [stderr]    |
[INFO] [stderr] 24 |         let mut rt = Runtime::new().unwrap();
[INFO] [stderr]    |             ----^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.02s
[INFO] running `"docker" "inspect" "524dfcd2aa3cea37ac9673a084f51fded747696d6e19380bdae5ba62f1d44452"`
[INFO] running `"docker" "rm" "-f" "524dfcd2aa3cea37ac9673a084f51fded747696d6e19380bdae5ba62f1d44452"`
[INFO] [stdout] 524dfcd2aa3cea37ac9673a084f51fded747696d6e19380bdae5ba62f1d44452
