[INFO] fetching crate tio 0.1.0...
[INFO] testing tio-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate tio 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate tio 0.1.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tio 0.1.0
[INFO] finished tweaking crates.io crate tio 0.1.0
[INFO] tweaked toml for crates.io crate tio 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9c710571c53453c0f78be6fe9bf09fc3a4c81583aa4bdb2942f92aa3afd30383
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9c710571c53453c0f78be6fe9bf09fc3a4c81583aa4bdb2942f92aa3afd30383", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c710571c53453c0f78be6fe9bf09fc3a4c81583aa4bdb2942f92aa3afd30383", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c710571c53453c0f78be6fe9bf09fc3a4c81583aa4bdb2942f92aa3afd30383", kill_on_drop: false }`
[INFO] [stdout] 9c710571c53453c0f78be6fe9bf09fc3a4c81583aa4bdb2942f92aa3afd30383
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9f885ef02eea758138f7c28eda3d6f862c7a69e467e21adfde870090e3ce3a13
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9f885ef02eea758138f7c28eda3d6f862c7a69e467e21adfde870090e3ce3a13", kill_on_drop: false }`
[INFO] [stderr]    Compiling async-task v1.3.1
[INFO] [stderr]    Compiling crossbeam-channel v0.4.4
[INFO] [stderr]    Compiling futures-util v0.3.8
[INFO] [stderr]    Compiling futures v0.3.8
[INFO] [stderr]    Compiling tio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.59s
[INFO] running `Command { std: "docker" "inspect" "9f885ef02eea758138f7c28eda3d6f862c7a69e467e21adfde870090e3ce3a13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f885ef02eea758138f7c28eda3d6f862c7a69e467e21adfde870090e3ce3a13", kill_on_drop: false }`
[INFO] [stdout] 9f885ef02eea758138f7c28eda3d6f862c7a69e467e21adfde870090e3ce3a13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c9e5260c514f3a6bed5a3b24213a797ce3f2b9caa0a2cae9eaa0d997947d8a5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0c9e5260c514f3a6bed5a3b24213a797ce3f2b9caa0a2cae9eaa0d997947d8a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling signal-hook-registry v1.3.0
[INFO] [stderr]    Compiling signal-hook v0.1.17
[INFO] [stderr]    Compiling async-process v1.0.1
[INFO] [stderr]    Compiling async-std v1.8.0
[INFO] [stderr]    Compiling tio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 20.57s
[INFO] running `Command { std: "docker" "inspect" "0c9e5260c514f3a6bed5a3b24213a797ce3f2b9caa0a2cae9eaa0d997947d8a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c9e5260c514f3a6bed5a3b24213a797ce3f2b9caa0a2cae9eaa0d997947d8a5", kill_on_drop: false }`
[INFO] [stdout] 0c9e5260c514f3a6bed5a3b24213a797ce3f2b9caa0a2cae9eaa0d997947d8a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 179c46a7312825e631fa18a86d977d928876505931dd3ac06e72b836ecb7ab6f
[INFO] running `Command { std: "docker" "start" "-a" "179c46a7312825e631fa18a86d977d928876505931dd3ac06e72b836ecb7ab6f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tio-400da1e59476735e
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test task::blocking::tests::unwind_uncaught ... ok
[INFO] [stdout] test task::blocking::tests::basic ... ok
[INFO] [stdout] test task::spawn::tests::unwind_uncaught ... ok
[INFO] [stdout] test task::spawn::tests::basic ... ok
[INFO] [stdout] test task::block::tests::recursive_block_on ... ok
[INFO] [stdout] test task::blocking::tests::unwind_caught ... ok
[INFO] [stdout] test task::spawn::tests::unwind_caught ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tio
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/net/util.rs - net::util::Resolver::resolve (line 20) ... FAILED
[INFO] [stdout] test src/task.rs - task (line 22) ... ok
[INFO] [stdout] test src/net.rs - net (line 30) ... FAILED
[INFO] [stdout] test src/task/block.rs - task::block::block_on (line 55) ... ok
[INFO] [stdout] test src/task/yield_now.rs - task::yield_now::yield_now (line 18) ... ok
[INFO] [stdout] test src/task/spawn.rs - task::spawn::spawn (line 97) ... ok
[INFO] [stdout] test src/task.rs - task (line 36) ... ok
[INFO] [stdout] test src/task/blocking.rs - task::blocking::spawn_blocking (line 74) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/net/util.rs - net::util::Resolver::resolve (line 20) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `tio::net::TcpStream`
[INFO] [stdout]  --> src/net/util.rs:23:16
[INFO] [stdout]   |
[INFO] [stdout] 5 | use tio::net::{TcpStream, Resolver};
[INFO] [stdout]   |                ^^^^^^^^^ no `TcpStream` in `net`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/net.rs - net (line 30) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `tio::net::UdpSocket`
[INFO] [stdout]  --> src/net.rs:33:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use tio::net::UdpSocket;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^ no `UdpSocket` in `net`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/net.rs - net (line 30)
[INFO] [stdout]     src/net/util.rs - net::util::Resolver::resolve (line 20)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 6 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "179c46a7312825e631fa18a86d977d928876505931dd3ac06e72b836ecb7ab6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "179c46a7312825e631fa18a86d977d928876505931dd3ac06e72b836ecb7ab6f", kill_on_drop: false }`
[INFO] [stdout] 179c46a7312825e631fa18a86d977d928876505931dd3ac06e72b836ecb7ab6f