[INFO] updating cached repository Ticsmtc/BirdIM
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Ticsmtc/BirdIM
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Ticsmtc/BirdIM" "work/ex/beta-1.37-6/sources/1.36.0/gh/Ticsmtc/BirdIM"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/Ticsmtc/BirdIM'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Ticsmtc/BirdIM" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Ticsmtc/BirdIM"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Ticsmtc/BirdIM'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0934f3a51fe16cba5caefc81fee97a3c7341e3ac
[INFO] sha for GitHub repo Ticsmtc/BirdIM: 0934f3a51fe16cba5caefc81fee97a3c7341e3ac
[INFO] validating manifest of Ticsmtc/BirdIM on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Ticsmtc/BirdIM on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Ticsmtc/BirdIM
[INFO] finished frobbing Ticsmtc/BirdIM
[INFO] frobbed toml for Ticsmtc/BirdIM written to work/ex/beta-1.37-6/sources/1.36.0/gh/Ticsmtc/BirdIM/Cargo.toml
[INFO] started frobbing Ticsmtc/BirdIM
[INFO] finished frobbing Ticsmtc/BirdIM
[INFO] frobbed toml for Ticsmtc/BirdIM written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Ticsmtc/BirdIM/Cargo.toml
[INFO] crate Ticsmtc/BirdIM already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing Ticsmtc/BirdIM against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Ticsmtc/BirdIM:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 215d8711f5521e62f8446d79d042bba85a77d9e908f5c44e78424b14f9b25519
[INFO] running `"docker" "start" "-a" "215d8711f5521e62f8446d79d042bba85a77d9e908f5c44e78424b14f9b25519"`
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]    Compiling thread_pools v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/thread_pools.rs:18:19
[INFO] [stderr]    |
[INFO] [stderr] 18 | type JobBox = Box<FnBox + Send + 'static>;
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox + Send + 'static`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type `Function_Arg_Group` should have an upper camel case name
[INFO] [stderr]   --> src/thread_pools.rs:35:10
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub enum Function_Arg_Group {
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `FunctionArgGroup`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_camel_case_types)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type `Reciver_Tool` should have an upper camel case name
[INFO] [stderr]   --> src/imutils.rs:21:12
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub struct Reciver_Tool {
[INFO] [stderr]    |            ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `ReciverTool`
[INFO] [stderr] 
[INFO] [stderr] warning: type `Sender_Pipe` should have an upper camel case name
[INFO] [stderr]   --> src/imutils.rs:25:12
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub struct Sender_Pipe;
[INFO] [stderr]    |            ^^^^^^^^^^^ help: convert the identifier to upper camel case: `SenderPipe`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `listener`
[INFO] [stderr]   --> src/imutils.rs:31:13
[INFO] [stderr]    |
[INFO] [stderr] 31 |         let listener = TcpListener::bind(address)?;
[INFO] [stderr]    |             ^^^^^^^^ help: consider prefixing with an underscore: `_listener`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/thread_pools.rs:63:17
[INFO] [stderr]    |
[INFO] [stderr] 63 |             let mut ireciver = ireciver;
[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/thread_pools.rs:64:17
[INFO] [stderr]    |
[INFO] [stderr] 64 |             let mut isender = isender;
[INFO] [stderr]    |                 ----^^^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/thread_pools.rs:67:21
[INFO] [stderr]    |
[INFO] [stderr] 67 |                 let mut job = ireciver.lock().unwrap().recv().unwrap();
[INFO] [stderr]    |                     ----^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `worker_id`
[INFO] [stderr]   --> src/thread_pools.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     worker_id: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `worker_name`
[INFO] [stderr]   --> src/thread_pools.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     worker_name: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `thread_handle`
[INFO] [stderr]   --> src/thread_pools.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     thread_handle: Option<thread::JoinHandle<()>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `main_users_pool`
[INFO] [stderr]   --> src/imutils.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     main_users_pool: ThreadPool,    //用来管控用户线程，保持心跳和发送消息
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `reciver_pipe`
[INFO] [stderr]   --> src/imutils.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     reciver_pipe: Reciver_Tool,     //用来接受客户端传来的信息，处理成队列，分配任务给线程池。
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `sender_pipe`
[INFO] [stderr]   --> src/imutils.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     sender_pipe: Sender_Pipe,       //用来发送线程池发送回来的对外信息。
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/imutils.rs:26:20
[INFO] [stderr]    |
[INFO] [stderr] 26 | impl Sender_Pipe { fn new() -> Self {Sender_Pipe} }
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/imutils.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     fn new(address: String,thread_count: usize) -> io::Result<IMUtils> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/imutils.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn new() -> Reciver_Tool { Reciver_Tool{} }
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::thread;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Duration`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::time::Duration;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::Rng`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use rand::Rng;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `arg`
[INFO] [stderr]   --> src/main.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 | fn fun1(arg: Function_Arg_Group) -> ThreadMessage {
[INFO] [stderr]    |         ^^^ help: consider prefixing with an underscore: `_arg`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fun1`
[INFO] [stderr]   --> src/main.rs:33:1
[INFO] [stderr]    |
[INFO] [stderr] 33 | fn fun1(arg: Function_Arg_Group) -> ThreadMessage {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.95s
[INFO] running `"docker" "inspect" "215d8711f5521e62f8446d79d042bba85a77d9e908f5c44e78424b14f9b25519"`
[INFO] running `"docker" "rm" "-f" "215d8711f5521e62f8446d79d042bba85a77d9e908f5c44e78424b14f9b25519"`
[INFO] [stdout] 215d8711f5521e62f8446d79d042bba85a77d9e908f5c44e78424b14f9b25519
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Ticsmtc/BirdIM:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] d037c01ad81cfedfbe4332a09e99a17bb881797dc4cae64a5a90e4b4916c8b20
[INFO] running `"docker" "start" "-a" "d037c01ad81cfedfbe4332a09e99a17bb881797dc4cae64a5a90e4b4916c8b20"`
[INFO] [stderr]    Compiling thread_pools v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/thread_pools.rs:18:19
[INFO] [stderr]    |
[INFO] [stderr] 18 | type JobBox = Box<FnBox + Send + 'static>;
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox + Send + 'static`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type `Function_Arg_Group` should have an upper camel case name
[INFO] [stderr]   --> src/thread_pools.rs:35:10
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub enum Function_Arg_Group {
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `FunctionArgGroup`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_camel_case_types)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type `Reciver_Tool` should have an upper camel case name
[INFO] [stderr]   --> src/imutils.rs:21:12
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub struct Reciver_Tool {
[INFO] [stderr]    |            ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `ReciverTool`
[INFO] [stderr] 
[INFO] [stderr] warning: type `Sender_Pipe` should have an upper camel case name
[INFO] [stderr]   --> src/imutils.rs:25:12
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub struct Sender_Pipe;
[INFO] [stderr]    |            ^^^^^^^^^^^ help: convert the identifier to upper camel case: `SenderPipe`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `listener`
[INFO] [stderr]   --> src/imutils.rs:31:13
[INFO] [stderr]    |
[INFO] [stderr] 31 |         let listener = TcpListener::bind(address)?;
[INFO] [stderr]    |             ^^^^^^^^ help: consider prefixing with an underscore: `_listener`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/thread_pools.rs:63:17
[INFO] [stderr]    |
[INFO] [stderr] 63 |             let mut ireciver = ireciver;
[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/thread_pools.rs:64:17
[INFO] [stderr]    |
[INFO] [stderr] 64 |             let mut isender = isender;
[INFO] [stderr]    |                 ----^^^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/thread_pools.rs:67:21
[INFO] [stderr]    |
[INFO] [stderr] 67 |                 let mut job = ireciver.lock().unwrap().recv().unwrap();
[INFO] [stderr]    |                     ----^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `worker_id`
[INFO] [stderr]   --> src/thread_pools.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     worker_id: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `worker_name`
[INFO] [stderr]   --> src/thread_pools.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     worker_name: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `thread_handle`
[INFO] [stderr]   --> src/thread_pools.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     thread_handle: Option<thread::JoinHandle<()>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `main_users_pool`
[INFO] [stderr]   --> src/imutils.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     main_users_pool: ThreadPool,    //用来管控用户线程，保持心跳和发送消息
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `reciver_pipe`
[INFO] [stderr]   --> src/imutils.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     reciver_pipe: Reciver_Tool,     //用来接受客户端传来的信息，处理成队列，分配任务给线程池。
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `sender_pipe`
[INFO] [stderr]   --> src/imutils.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     sender_pipe: Sender_Pipe,       //用来发送线程池发送回来的对外信息。
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/imutils.rs:26:20
[INFO] [stderr]    |
[INFO] [stderr] 26 | impl Sender_Pipe { fn new() -> Self {Sender_Pipe} }
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/imutils.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     fn new(address: String,thread_count: usize) -> io::Result<IMUtils> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/imutils.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn new() -> Reciver_Tool { Reciver_Tool{} }
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::thread;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Duration`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::time::Duration;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::Rng`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use rand::Rng;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `arg`
[INFO] [stderr]   --> src/main.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 | fn fun1(arg: Function_Arg_Group) -> ThreadMessage {
[INFO] [stderr]    |         ^^^ help: consider prefixing with an underscore: `_arg`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fun1`
[INFO] [stderr]   --> src/main.rs:33:1
[INFO] [stderr]    |
[INFO] [stderr] 33 | fn fun1(arg: Function_Arg_Group) -> ThreadMessage {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `"docker" "inspect" "d037c01ad81cfedfbe4332a09e99a17bb881797dc4cae64a5a90e4b4916c8b20"`
[INFO] running `"docker" "rm" "-f" "d037c01ad81cfedfbe4332a09e99a17bb881797dc4cae64a5a90e4b4916c8b20"`
[INFO] [stdout] d037c01ad81cfedfbe4332a09e99a17bb881797dc4cae64a5a90e4b4916c8b20
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Ticsmtc/BirdIM:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 22200f5e1aaf2a609b70ebcb0acb99de262f3e3cd9d9519b66723d8c7778c3ed
[INFO] running `"docker" "start" "-a" "22200f5e1aaf2a609b70ebcb0acb99de262f3e3cd9d9519b66723d8c7778c3ed"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/thread_pools-e64ab267a5d9608a
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/thread_pools-88eaa717d2f9c6f4
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests thread_pools
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "22200f5e1aaf2a609b70ebcb0acb99de262f3e3cd9d9519b66723d8c7778c3ed"`
[INFO] running `"docker" "rm" "-f" "22200f5e1aaf2a609b70ebcb0acb99de262f3e3cd9d9519b66723d8c7778c3ed"`
[INFO] [stdout] 22200f5e1aaf2a609b70ebcb0acb99de262f3e3cd9d9519b66723d8c7778c3ed