[INFO] updating cached repository https://github.com/daogangtang/learn-tokio [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 98b13be0e474ffb1b6a4f84b3e9caa91d100296a [INFO] testing daogangtang/learn-tokio against 1.38.0 for beta-1.39-1 [INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaogangtang%2Flearn-tokio" "work/builds/worker-1/source"` [INFO] [stderr] Cloning into 'work/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/daogangtang/learn-tokio on toolchain 1.38.0 [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/daogangtang/learn-tokio [INFO] finished tweaking git repo https://github.com/daogangtang/learn-tokio [INFO] tweaked toml for git repo https://github.com/daogangtang/learn-tokio written to work/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/daogangtang/learn-tokio already has a lockfile, it will not be regenerated [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+1.38.0" "build" "--frozen"` [INFO] [stdout] 898ac642ab2471fe30ec4a9e448410a69bc5b0121073b7908822aff713be56c1 [INFO] running `"docker" "start" "-a" "898ac642ab2471fe30ec4a9e448410a69bc5b0121073b7908822aff713be56c1"` [INFO] [stderr] Compiling net2 v0.2.33 [INFO] [stderr] Compiling log v0.4.6 [INFO] [stderr] Compiling crossbeam-epoch v0.5.2 [INFO] [stderr] Compiling tokio-io v0.1.10 [INFO] [stderr] Compiling crossbeam-deque v0.6.1 [INFO] [stderr] Compiling mio v0.6.16 [INFO] [stderr] Compiling tokio-threadpool v0.1.8 [INFO] [stderr] Compiling tokio-codec v0.1.1 [INFO] [stderr] Compiling tokio-reactor v0.1.6 [INFO] [stderr] Compiling mio-uds v0.6.7 [INFO] [stderr] Compiling tokio-fs v0.1.4 [INFO] [stderr] Compiling tokio-udp v0.1.2 [INFO] [stderr] Compiling tokio-tcp v0.1.2 [INFO] [stderr] Compiling tokio-uds v0.2.3 [INFO] [stderr] Compiling tokio v0.1.11 [INFO] [stderr] Compiling learn-tokio0 v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `tokio::io` [INFO] [stderr] --> src/tcp_server.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use tokio::io; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `futures::try_ready` [INFO] [stderr] --> src/concurrent_send_recv.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use futures::try_ready; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `futures::try_ready` [INFO] [stderr] --> src/concurrent_send_recv2.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use futures::try_ready; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/tcp_server3.rs:29:31 [INFO] [stderr] | [INFO] [stderr] 29 | .map_err(|e| std::io::Error::new(std::io::ErrorKind::Other, "oh no!")) [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_e` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `tokio::prelude` [INFO] [stderr] --> src/tcp_server.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use tokio::prelude::*; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/tcp_server.rs:37:31 [INFO] [stderr] | [INFO] [stderr] 37 | .map_err(|e| std::io::Error::new(std::io::ErrorKind::Other, "oh no!")) [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_e` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `stdout` [INFO] [stderr] --> src/tcp_client.rs:12:13 [INFO] [stderr] | [INFO] [stderr] 12 | let mut stdout = io::stdout(); [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_stdout` [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/tcp_client.rs:12:9 [INFO] [stderr] | [INFO] [stderr] 12 | let mut stdout = io::stdout(); [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] Finished dev [unoptimized + debuginfo] target(s) in 16.51s [INFO] running `"docker" "inspect" "898ac642ab2471fe30ec4a9e448410a69bc5b0121073b7908822aff713be56c1"` [INFO] running `"docker" "rm" "-f" "898ac642ab2471fe30ec4a9e448410a69bc5b0121073b7908822aff713be56c1"` [INFO] [stdout] 898ac642ab2471fe30ec4a9e448410a69bc5b0121073b7908822aff713be56c1 [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+1.38.0" "test" "--frozen" "--no-run"` [INFO] [stdout] fef252bc31fa0006b1843a08b6fe7325af4a996f6e3546b3b0f31dc46f103f7d [INFO] running `"docker" "start" "-a" "fef252bc31fa0006b1843a08b6fe7325af4a996f6e3546b3b0f31dc46f103f7d"` [INFO] [stderr] Compiling learn-tokio0 v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `futures::try_ready` [INFO] [stderr] --> src/concurrent_send_recv.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use futures::try_ready; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `tokio::io` [INFO] [stderr] --> src/tcp_server.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use tokio::io; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `futures::try_ready` [INFO] [stderr] --> src/concurrent_send_recv2.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use futures::try_ready; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/tcp_server3.rs:29:31 [INFO] [stderr] | [INFO] [stderr] 29 | .map_err(|e| std::io::Error::new(std::io::ErrorKind::Other, "oh no!")) [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_e` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `tokio::prelude` [INFO] [stderr] --> src/tcp_server.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use tokio::prelude::*; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/tcp_server.rs:37:31 [INFO] [stderr] | [INFO] [stderr] 37 | .map_err(|e| std::io::Error::new(std::io::ErrorKind::Other, "oh no!")) [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_e` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `stdout` [INFO] [stderr] --> src/tcp_client.rs:12:13 [INFO] [stderr] | [INFO] [stderr] 12 | let mut stdout = io::stdout(); [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_stdout` [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/tcp_client.rs:12:9 [INFO] [stderr] | [INFO] [stderr] 12 | let mut stdout = io::stdout(); [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] Finished dev [unoptimized + debuginfo] target(s) in 5.00s [INFO] running `"docker" "inspect" "fef252bc31fa0006b1843a08b6fe7325af4a996f6e3546b3b0f31dc46f103f7d"` [INFO] running `"docker" "rm" "-f" "fef252bc31fa0006b1843a08b6fe7325af4a996f6e3546b3b0f31dc46f103f7d"` [INFO] [stdout] fef252bc31fa0006b1843a08b6fe7325af4a996f6e3546b3b0f31dc46f103f7d [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+1.38.0" "test" "--frozen"` [INFO] [stdout] 9299dda7f56b269b6e326a3bfaf3a5c26de19316b6921a9db23335f068da5e4a [INFO] running `"docker" "start" "-a" "9299dda7f56b269b6e326a3bfaf3a5c26de19316b6921a9db23335f068da5e4a"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.28s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/concurrent_interval_print-15821675531ceae7 [INFO] [stderr] Running /opt/rustwide/target/debug/deps/concurrent_send_recv-b65e1fe3ebc3880e [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] [stderr] Running /opt/rustwide/target/debug/deps/concurrent_send_recv2-bc867c247215d399 [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] [stderr] Running /opt/rustwide/target/debug/deps/delay_print-031357d14f331ef7 [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/rustwide/target/debug/deps/delay_seq_print-373af53736db3fbc [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/rustwide/target/debug/deps/echo_udp-5d75bf54a80ce155 [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/rustwide/target/debug/deps/futures_select-e1716e630e5c0072 [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] [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] Running /opt/rustwide/target/debug/deps/interval_print-5f8f5ca7c5cfbc27 [INFO] [stdout] [INFO] [stderr] Running /opt/rustwide/target/debug/deps/print_each_packet-43372b10124d510e [INFO] [stdout] running 0 tests [INFO] [stderr] Running /opt/rustwide/target/debug/deps/print_lines-6fffb313a482d159 [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [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] [stderr] Running /opt/rustwide/target/debug/deps/tcp_client-97f572e8e2e23566 [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] [stderr] Running /opt/rustwide/target/debug/deps/tcp_server-dc232cb000d42ce9 [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] [stderr] Running /opt/rustwide/target/debug/deps/tcp_server3-b413710be52b7d1f [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] [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" "9299dda7f56b269b6e326a3bfaf3a5c26de19316b6921a9db23335f068da5e4a"` [INFO] running `"docker" "rm" "-f" "9299dda7f56b269b6e326a3bfaf3a5c26de19316b6921a9db23335f068da5e4a"` [INFO] [stdout] 9299dda7f56b269b6e326a3bfaf3a5c26de19316b6921a9db23335f068da5e4a