Nov 28 07:00:57.734 INFO checking daogangtang/learn-tokio against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074 Nov 28 07:00:57.736 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-1/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/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 +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-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 28 07:00:58.190 INFO [stdout] 9e5619f6f63790a0116efe7325f47f83f0b6570d08a11d4880a94a22bd628668 Nov 28 07:00:58.192 INFO running `"docker" "start" "-a" "9e5619f6f63790a0116efe7325f47f83f0b6570d08a11d4880a94a22bd628668"` Nov 28 07:01:00.332 INFO [stderr] usermod: no changes Nov 28 07:01:00.531 INFO [stderr] Checking crossbeam-epoch v0.5.2 Nov 28 07:01:00.540 INFO [stderr] Checking tokio-reactor v0.1.6 Nov 28 07:01:01.779 INFO [stderr] Checking crossbeam-deque v0.6.1 Nov 28 07:01:03.018 INFO [stderr] Checking tokio-threadpool v0.1.8 Nov 28 07:01:03.308 INFO [stderr] Checking tokio-tcp v0.1.2 Nov 28 07:01:03.314 INFO [stderr] Checking tokio-uds v0.2.3 Nov 28 07:01:03.315 INFO [stderr] Checking tokio-udp v0.1.2 Nov 28 07:01:08.192 INFO [stderr] Checking tokio-fs v0.1.4 Nov 28 07:01:09.576 INFO [stderr] Checking tokio v0.1.11 Nov 28 07:01:11.490 INFO [stderr] Checking learn-tokio0 v0.1.0 (/source) Nov 28 07:01:21.072 INFO [stderr] warning: unused variable: `stdout` Nov 28 07:01:21.072 INFO [stderr] --> src/tcp_client.rs:12:13 Nov 28 07:01:21.072 INFO [stderr] | Nov 28 07:01:21.072 INFO [stderr] 12 | let mut stdout = io::stdout(); Nov 28 07:01:21.072 INFO [stderr] | ^^^^^^ help: consider using `_stdout` instead Nov 28 07:01:21.072 INFO [stderr] | Nov 28 07:01:21.072 INFO [stderr] = note: #[warn(unused_variables)] on by default Nov 28 07:01:21.072 INFO [stderr] Nov 28 07:01:21.166 INFO [stderr] warning: variable does not need to be mutable Nov 28 07:01:21.168 INFO [stderr] --> src/tcp_client.rs:12:9 Nov 28 07:01:21.168 INFO [stderr] | Nov 28 07:01:21.168 INFO [stderr] 12 | let mut stdout = io::stdout(); Nov 28 07:01:21.168 INFO [stderr] | ----^^^^^^ Nov 28 07:01:21.168 INFO [stderr] | | Nov 28 07:01:21.168 INFO [stderr] | help: remove this `mut` Nov 28 07:01:21.172 INFO [stderr] | Nov 28 07:01:21.173 INFO [stderr] = note: #[warn(unused_mut)] on by default Nov 28 07:01:21.174 INFO [stderr] Nov 28 07:01:22.523 INFO [stderr] warning: unused variable: `e` Nov 28 07:01:22.523 INFO [stderr] --> src/tcp_server3.rs:29:31 Nov 28 07:01:22.523 INFO [stderr] | Nov 28 07:01:22.524 INFO [stderr] 29 | .map_err(|e| std::io::Error::new(std::io::ErrorKind::Other, "oh no!")) Nov 28 07:01:22.524 INFO [stderr] | ^ help: consider using `_e` instead Nov 28 07:01:22.537 INFO [stderr] | Nov 28 07:01:22.537 INFO [stderr] = note: #[warn(unused_variables)] on by default Nov 28 07:01:22.540 INFO [stderr] Nov 28 07:01:27.805 INFO [stderr] warning: unused import: `futures::try_ready` Nov 28 07:01:27.805 INFO [stderr] --> src/concurrent_send_recv2.rs:7:5 Nov 28 07:01:27.805 INFO [stderr] | Nov 28 07:01:27.805 INFO [stderr] 7 | use futures::try_ready; Nov 28 07:01:27.805 INFO [stderr] | ^^^^^^^^^^^^^^^^^^ Nov 28 07:01:27.805 INFO [stderr] | Nov 28 07:01:27.805 INFO [stderr] = note: #[warn(unused_imports)] on by default Nov 28 07:01:27.805 INFO [stderr] Nov 28 07:01:29.732 INFO [stderr] warning: unused variable: `stdout` Nov 28 07:01:29.732 INFO [stderr] --> src/tcp_client.rs:12:13 Nov 28 07:01:29.732 INFO [stderr] | Nov 28 07:01:29.732 INFO [stderr] 12 | let mut stdout = io::stdout(); Nov 28 07:01:29.732 INFO [stderr] | ^^^^^^ help: consider using `_stdout` instead Nov 28 07:01:29.732 INFO [stderr] | Nov 28 07:01:29.732 INFO [stderr] = note: #[warn(unused_variables)] on by default Nov 28 07:01:29.732 INFO [stderr] Nov 28 07:01:29.800 INFO [stderr] warning: variable does not need to be mutable Nov 28 07:01:29.800 INFO [stderr] --> src/tcp_client.rs:12:9 Nov 28 07:01:29.800 INFO [stderr] | Nov 28 07:01:29.800 INFO [stderr] 12 | let mut stdout = io::stdout(); Nov 28 07:01:29.800 INFO [stderr] | ----^^^^^^ Nov 28 07:01:29.800 INFO [stderr] | | Nov 28 07:01:29.800 INFO [stderr] | help: remove this `mut` Nov 28 07:01:29.800 INFO [stderr] | Nov 28 07:01:29.800 INFO [stderr] = note: #[warn(unused_mut)] on by default Nov 28 07:01:29.800 INFO [stderr] Nov 28 07:01:30.718 INFO [stderr] warning: unused import: `tokio::io` Nov 28 07:01:30.718 INFO [stderr] --> src/tcp_server.rs:5:5 Nov 28 07:01:30.718 INFO [stderr] | Nov 28 07:01:30.718 INFO [stderr] 5 | use tokio::io; Nov 28 07:01:30.718 INFO [stderr] | ^^^^^^^^^ Nov 28 07:01:30.718 INFO [stderr] | Nov 28 07:01:30.718 INFO [stderr] = note: #[warn(unused_imports)] on by default Nov 28 07:01:30.718 INFO [stderr] Nov 28 07:01:30.824 INFO [stderr] warning: unused import: `tokio::prelude` Nov 28 07:01:30.824 INFO [stderr] --> src/tcp_server.rs:7:5 Nov 28 07:01:30.824 INFO [stderr] | Nov 28 07:01:30.824 INFO [stderr] 7 | use tokio::prelude::*; Nov 28 07:01:30.824 INFO [stderr] | ^^^^^^^^^^^^^^ Nov 28 07:01:30.824 INFO [stderr] Nov 28 07:01:30.824 INFO [stderr] warning: unused variable: `e` Nov 28 07:01:30.824 INFO [stderr] --> src/tcp_server.rs:37:31 Nov 28 07:01:30.824 INFO [stderr] | Nov 28 07:01:30.824 INFO [stderr] 37 | .map_err(|e| std::io::Error::new(std::io::ErrorKind::Other, "oh no!")) Nov 28 07:01:30.824 INFO [stderr] | ^ help: consider using `_e` instead Nov 28 07:01:30.824 INFO [stderr] | Nov 28 07:01:30.824 INFO [stderr] = note: #[warn(unused_variables)] on by default Nov 28 07:01:30.824 INFO [stderr] Nov 28 07:01:31.909 INFO [stderr] warning: unused import: `tokio::io` Nov 28 07:01:31.909 INFO [stderr] --> src/tcp_server.rs:5:5 Nov 28 07:01:31.909 INFO [stderr] | Nov 28 07:01:31.909 INFO [stderr] 5 | use tokio::io; Nov 28 07:01:31.909 INFO [stderr] | ^^^^^^^^^ Nov 28 07:01:31.909 INFO [stderr] | Nov 28 07:01:31.909 INFO [stderr] = note: #[warn(unused_imports)] on by default Nov 28 07:01:31.909 INFO [stderr] Nov 28 07:01:32.056 INFO [stderr] warning: unused import: `tokio::prelude` Nov 28 07:01:32.057 INFO [stderr] --> src/tcp_server.rs:7:5 Nov 28 07:01:32.057 INFO [stderr] | Nov 28 07:01:32.057 INFO [stderr] 7 | use tokio::prelude::*; Nov 28 07:01:32.057 INFO [stderr] | ^^^^^^^^^^^^^^ Nov 28 07:01:32.057 INFO [stderr] Nov 28 07:01:32.057 INFO [stderr] warning: unused variable: `e` Nov 28 07:01:32.057 INFO [stderr] --> src/tcp_server.rs:37:31 Nov 28 07:01:32.058 INFO [stderr] | Nov 28 07:01:32.058 INFO [stderr] 37 | .map_err(|e| std::io::Error::new(std::io::ErrorKind::Other, "oh no!")) Nov 28 07:01:32.058 INFO [stderr] | ^ help: consider using `_e` instead Nov 28 07:01:32.060 INFO [stderr] | Nov 28 07:01:32.061 INFO [stderr] = note: #[warn(unused_variables)] on by default Nov 28 07:01:32.061 INFO [stderr] Nov 28 07:01:33.156 INFO [stderr] warning: unused import: `futures::try_ready` Nov 28 07:01:33.156 INFO [stderr] --> src/concurrent_send_recv.rs:7:5 Nov 28 07:01:33.156 INFO [stderr] | Nov 28 07:01:33.156 INFO [stderr] 7 | use futures::try_ready; Nov 28 07:01:33.156 INFO [stderr] | ^^^^^^^^^^^^^^^^^^ Nov 28 07:01:33.156 INFO [stderr] | Nov 28 07:01:33.156 INFO [stderr] = note: #[warn(unused_imports)] on by default Nov 28 07:01:33.156 INFO [stderr] Nov 28 07:01:33.333 INFO [stderr] warning: unused variable: `e` Nov 28 07:01:33.333 INFO [stderr] --> src/tcp_server3.rs:29:31 Nov 28 07:01:33.333 INFO [stderr] | Nov 28 07:01:33.334 INFO [stderr] 29 | .map_err(|e| std::io::Error::new(std::io::ErrorKind::Other, "oh no!")) Nov 28 07:01:33.334 INFO [stderr] | ^ help: consider using `_e` instead Nov 28 07:01:33.334 INFO [stderr] | Nov 28 07:01:33.334 INFO [stderr] = note: #[warn(unused_variables)] on by default Nov 28 07:01:33.335 INFO [stderr] Nov 28 07:01:33.524 INFO [stderr] warning: unused import: `futures::try_ready` Nov 28 07:01:33.524 INFO [stderr] --> src/concurrent_send_recv.rs:7:5 Nov 28 07:01:33.524 INFO [stderr] | Nov 28 07:01:33.524 INFO [stderr] 7 | use futures::try_ready; Nov 28 07:01:33.524 INFO [stderr] | ^^^^^^^^^^^^^^^^^^ Nov 28 07:01:33.524 INFO [stderr] | Nov 28 07:01:33.524 INFO [stderr] = note: #[warn(unused_imports)] on by default Nov 28 07:01:33.524 INFO [stderr] Nov 28 07:01:33.801 INFO [stderr] warning: unused import: `futures::try_ready` Nov 28 07:01:33.801 INFO [stderr] --> src/concurrent_send_recv2.rs:7:5 Nov 28 07:01:33.801 INFO [stderr] | Nov 28 07:01:33.802 INFO [stderr] 7 | use futures::try_ready; Nov 28 07:01:33.802 INFO [stderr] | ^^^^^^^^^^^^^^^^^^ Nov 28 07:01:33.802 INFO [stderr] | Nov 28 07:01:33.802 INFO [stderr] = note: #[warn(unused_imports)] on by default Nov 28 07:01:33.802 INFO [stderr] Nov 28 07:01:34.772 INFO [stderr] Finished dev [unoptimized + debuginfo] target(s) in 34.41s Nov 28 07:01:34.783 INFO [stderr] su: No module specific data is present Nov 28 07:01:35.059 INFO running `"docker" "inspect" "9e5619f6f63790a0116efe7325f47f83f0b6570d08a11d4880a94a22bd628668"` Nov 28 07:01:35.181 INFO running `"docker" "rm" "-f" "9e5619f6f63790a0116efe7325f47f83f0b6570d08a11d4880a94a22bd628668"` Nov 28 07:01:35.282 INFO [stdout] 9e5619f6f63790a0116efe7325f47f83f0b6570d08a11d4880a94a22bd628668