Nov 30 04:35:36.751 INFO checking daogangtang/learn-tokio against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 30 04:35:36.751 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-6/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +32252761328f59ccfadb1bafb8148c685bc830b3-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 30 04:35:37.069 INFO [stdout] ed297d346e17bada28b79a03afbbb3579e57d5528790597fbb96b09d5c676db9
Nov 30 04:35:37.078 INFO running `"docker" "start" "-a" "ed297d346e17bada28b79a03afbbb3579e57d5528790597fbb96b09d5c676db9"`
Nov 30 04:35:37.971 INFO [stderr] usermod: no changes
Nov 30 04:35:38.161 INFO [stderr]     Checking tokio-threadpool v0.1.8
Nov 30 04:35:38.164 INFO [stderr]     Checking tokio-reactor v0.1.6
Nov 30 04:35:40.694 INFO [stderr]     Checking tokio-udp v0.1.2
Nov 30 04:35:40.696 INFO [stderr]     Checking tokio-uds v0.2.3
Nov 30 04:35:40.698 INFO [stderr]     Checking tokio-tcp v0.1.2
Nov 30 04:35:40.829 INFO [stderr]     Checking tokio-fs v0.1.4
Nov 30 04:35:43.520 INFO [stderr]     Checking tokio v0.1.11
Nov 30 04:35:45.350 INFO [stderr]     Checking learn-tokio0 v0.1.0 (/source)
Nov 30 04:35:55.660 INFO [stderr] warning: unused import: `tokio::io`
Nov 30 04:35:55.660 INFO [stderr]  --> src/tcp_server.rs:5:5
Nov 30 04:35:55.660 INFO [stderr]   |
Nov 30 04:35:55.660 INFO [stderr] 5 | use tokio::io;
Nov 30 04:35:55.660 INFO [stderr]   |     ^^^^^^^^^
Nov 30 04:35:55.660 INFO [stderr]   |
Nov 30 04:35:55.660 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 30 04:35:55.660 INFO [stderr] 
Nov 30 04:35:56.086 INFO [stderr] warning: unused import: `tokio::prelude`
Nov 30 04:35:56.086 INFO [stderr]  --> src/tcp_server.rs:7:5
Nov 30 04:35:56.086 INFO [stderr]   |
Nov 30 04:35:56.086 INFO [stderr] 7 | use tokio::prelude::*;
Nov 30 04:35:56.086 INFO [stderr]   |     ^^^^^^^^^^^^^^
Nov 30 04:35:56.108 INFO [stderr] 
Nov 30 04:35:56.110 INFO [stderr] warning: unused variable: `e`
Nov 30 04:35:56.111 INFO [stderr]   --> src/tcp_server.rs:37:31
Nov 30 04:35:56.111 INFO [stderr]    |
Nov 30 04:35:56.111 INFO [stderr] 37 |                     .map_err(|e| std::io::Error::new(std::io::ErrorKind::Other, "oh no!"))
Nov 30 04:35:56.111 INFO [stderr]    |                               ^ help: consider using `_e` instead
Nov 30 04:35:56.124 INFO [stderr]    |
Nov 30 04:35:56.124 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 30 04:35:56.124 INFO [stderr] 
Nov 30 04:35:56.932 INFO [stderr] warning: unused variable: `e`
Nov 30 04:35:56.932 INFO [stderr]   --> src/tcp_server3.rs:29:31
Nov 30 04:35:56.932 INFO [stderr]    |
Nov 30 04:35:56.932 INFO [stderr] 29 |                     .map_err(|e| std::io::Error::new(std::io::ErrorKind::Other, "oh no!"))
Nov 30 04:35:56.932 INFO [stderr]    |                               ^ help: consider using `_e` instead
Nov 30 04:35:56.932 INFO [stderr]    |
Nov 30 04:35:56.932 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 30 04:35:56.932 INFO [stderr] 
Nov 30 04:35:58.024 INFO [stderr] warning: unused variable: `stdout`
Nov 30 04:35:58.024 INFO [stderr]   --> src/tcp_client.rs:12:13
Nov 30 04:35:58.024 INFO [stderr]    |
Nov 30 04:35:58.024 INFO [stderr] 12 |     let mut stdout = io::stdout();
Nov 30 04:35:58.024 INFO [stderr]    |             ^^^^^^ help: consider using `_stdout` instead
Nov 30 04:35:58.040 INFO [stderr]    |
Nov 30 04:35:58.040 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 30 04:35:58.040 INFO [stderr] 
Nov 30 04:35:58.184 INFO [stderr] warning: variable does not need to be mutable
Nov 30 04:35:58.184 INFO [stderr]   --> src/tcp_client.rs:12:9
Nov 30 04:35:58.184 INFO [stderr]    |
Nov 30 04:35:58.184 INFO [stderr] 12 |     let mut stdout = io::stdout();
Nov 30 04:35:58.184 INFO [stderr]    |         ----^^^^^^
Nov 30 04:35:58.184 INFO [stderr]    |         |
Nov 30 04:35:58.184 INFO [stderr]    |         help: remove this `mut`
Nov 30 04:35:58.194 INFO [stderr]    |
Nov 30 04:35:58.194 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 30 04:35:58.194 INFO [stderr] 
Nov 30 04:36:07.304 INFO [stderr] warning: unused import: `futures::try_ready`
Nov 30 04:36:07.304 INFO [stderr]  --> src/concurrent_send_recv2.rs:7:5
Nov 30 04:36:07.304 INFO [stderr]   |
Nov 30 04:36:07.304 INFO [stderr] 7 | use futures::try_ready;
Nov 30 04:36:07.304 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Nov 30 04:36:07.304 INFO [stderr]   |
Nov 30 04:36:07.304 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 30 04:36:07.305 INFO [stderr] 
Nov 30 04:36:08.256 INFO [stderr] warning: unused import: `futures::try_ready`
Nov 30 04:36:08.256 INFO [stderr]  --> src/concurrent_send_recv2.rs:7:5
Nov 30 04:36:08.256 INFO [stderr]   |
Nov 30 04:36:08.256 INFO [stderr] 7 | use futures::try_ready;
Nov 30 04:36:08.256 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Nov 30 04:36:08.256 INFO [stderr]   |
Nov 30 04:36:08.256 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 30 04:36:08.256 INFO [stderr] 
Nov 30 04:36:08.352 INFO [stderr] warning: unused variable: `stdout`
Nov 30 04:36:08.352 INFO [stderr]   --> src/tcp_client.rs:12:13
Nov 30 04:36:08.352 INFO [stderr]    |
Nov 30 04:36:08.352 INFO [stderr] 12 |     let mut stdout = io::stdout();
Nov 30 04:36:08.352 INFO [stderr]    |             ^^^^^^ help: consider using `_stdout` instead
Nov 30 04:36:08.356 INFO [stderr]    |
Nov 30 04:36:08.356 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 30 04:36:08.356 INFO [stderr] 
Nov 30 04:36:08.512 INFO [stderr] warning: variable does not need to be mutable
Nov 30 04:36:08.512 INFO [stderr]   --> src/tcp_client.rs:12:9
Nov 30 04:36:08.512 INFO [stderr]    |
Nov 30 04:36:08.512 INFO [stderr] 12 |     let mut stdout = io::stdout();
Nov 30 04:36:08.512 INFO [stderr]    |         ----^^^^^^
Nov 30 04:36:08.512 INFO [stderr]    |         |
Nov 30 04:36:08.512 INFO [stderr]    |         help: remove this `mut`
Nov 30 04:36:08.512 INFO [stderr]    |
Nov 30 04:36:08.512 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 30 04:36:08.512 INFO [stderr] 
Nov 30 04:36:09.830 INFO [stderr] warning: unused import: `tokio::io`
Nov 30 04:36:09.830 INFO [stderr]  --> src/tcp_server.rs:5:5
Nov 30 04:36:09.830 INFO [stderr]   |
Nov 30 04:36:09.830 INFO [stderr] 5 | use tokio::io;
Nov 30 04:36:09.830 INFO [stderr]   |     ^^^^^^^^^
Nov 30 04:36:09.830 INFO [stderr]   |
Nov 30 04:36:09.830 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 30 04:36:09.830 INFO [stderr] 
Nov 30 04:36:10.260 INFO [stderr] warning: unused import: `tokio::prelude`
Nov 30 04:36:10.260 INFO [stderr]  --> src/tcp_server.rs:7:5
Nov 30 04:36:10.260 INFO [stderr]   |
Nov 30 04:36:10.260 INFO [stderr] 7 | use tokio::prelude::*;
Nov 30 04:36:10.260 INFO [stderr]   |     ^^^^^^^^^^^^^^
Nov 30 04:36:10.260 INFO [stderr] 
Nov 30 04:36:10.268 INFO [stderr] warning: unused variable: `e`
Nov 30 04:36:10.268 INFO [stderr]   --> src/tcp_server.rs:37:31
Nov 30 04:36:10.268 INFO [stderr]    |
Nov 30 04:36:10.268 INFO [stderr] 37 |                     .map_err(|e| std::io::Error::new(std::io::ErrorKind::Other, "oh no!"))
Nov 30 04:36:10.268 INFO [stderr]    |                               ^ help: consider using `_e` instead
Nov 30 04:36:10.268 INFO [stderr]    |
Nov 30 04:36:10.268 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 30 04:36:10.268 INFO [stderr] 
Nov 30 04:36:16.652 INFO [stderr] warning: unused import: `futures::try_ready`
Nov 30 04:36:16.652 INFO [stderr]  --> src/concurrent_send_recv.rs:7:5
Nov 30 04:36:16.652 INFO [stderr]   |
Nov 30 04:36:16.652 INFO [stderr] 7 | use futures::try_ready;
Nov 30 04:36:16.652 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Nov 30 04:36:16.652 INFO [stderr]   |
Nov 30 04:36:16.652 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 30 04:36:16.652 INFO [stderr] 
Nov 30 04:36:16.908 INFO [stderr] warning: unused variable: `e`
Nov 30 04:36:16.908 INFO [stderr]   --> src/tcp_server3.rs:29:31
Nov 30 04:36:16.908 INFO [stderr]    |
Nov 30 04:36:16.908 INFO [stderr] 29 |                     .map_err(|e| std::io::Error::new(std::io::ErrorKind::Other, "oh no!"))
Nov 30 04:36:16.908 INFO [stderr]    |                               ^ help: consider using `_e` instead
Nov 30 04:36:16.908 INFO [stderr]    |
Nov 30 04:36:16.908 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 30 04:36:16.908 INFO [stderr] 
Nov 30 04:36:17.616 INFO [stderr] warning: unused import: `futures::try_ready`
Nov 30 04:36:17.616 INFO [stderr]  --> src/concurrent_send_recv.rs:7:5
Nov 30 04:36:17.616 INFO [stderr]   |
Nov 30 04:36:17.616 INFO [stderr] 7 | use futures::try_ready;
Nov 30 04:36:17.616 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Nov 30 04:36:17.616 INFO [stderr]   |
Nov 30 04:36:17.616 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 30 04:36:17.616 INFO [stderr] 
Nov 30 04:36:17.706 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.70s
Nov 30 04:36:17.719 INFO [stderr] su: No module specific data is present
Nov 30 04:36:18.015 INFO running `"docker" "inspect" "ed297d346e17bada28b79a03afbbb3579e57d5528790597fbb96b09d5c676db9"`
Nov 30 04:36:18.160 INFO running `"docker" "rm" "-f" "ed297d346e17bada28b79a03afbbb3579e57d5528790597fbb96b09d5c676db9"`
Nov 30 04:36:18.310 INFO [stdout] ed297d346e17bada28b79a03afbbb3579e57d5528790597fbb96b09d5c676db9