[INFO] fetching crate punching_client 0.1.1...
[INFO] testing punching_client-0.1.1 against 1.47.0 for beta-1.48-1
[INFO] extracting crate punching_client 0.1.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate punching_client 0.1.1 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate punching_client 0.1.1
[INFO] finished tweaking crates.io crate punching_client 0.1.1
[INFO] tweaked toml for crates.io crate punching_client 0.1.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6dc2efccd3dc156411d376a53934e0eea97c2812b7b71fbf642cfdc0c2df7632
[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" "6dc2efccd3dc156411d376a53934e0eea97c2812b7b71fbf642cfdc0c2df7632", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6dc2efccd3dc156411d376a53934e0eea97c2812b7b71fbf642cfdc0c2df7632", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6dc2efccd3dc156411d376a53934e0eea97c2812b7b71fbf642cfdc0c2df7632", kill_on_drop: false }`
[INFO] [stdout] 6dc2efccd3dc156411d376a53934e0eea97c2812b7b71fbf642cfdc0c2df7632
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", 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] c5da6329a69d1630bf9e6ccf617d1e80465c38d74e5320d603b6c3b3e4bec49d
[INFO] running `Command { std: "docker" "start" "-a" "c5da6329a69d1630bf9e6ccf617d1e80465c38d74e5320d603b6c3b3e4bec49d", kill_on_drop: false }`
[INFO] [stderr]    Compiling async-trait v0.1.41
[INFO] [stderr]    Compiling uuid v0.8.1
[INFO] [stderr]    Compiling bincode v1.3.1
[INFO] [stderr]    Compiling async-std v1.6.5
[INFO] [stderr]    Compiling punching_server v0.1.1
[INFO] [stderr]    Compiling punching_client v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::borrow::ToOwned::to_owned` that must be used
[INFO] [stdout]   --> src/cli/rec_p2p.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |         map.remove(&(self.session, self.max)).unwrap().to_owned();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: cloning is often expensive and is not expected to have side effects
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.36s
[INFO] running `Command { std: "docker" "inspect" "c5da6329a69d1630bf9e6ccf617d1e80465c38d74e5320d603b6c3b3e4bec49d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5da6329a69d1630bf9e6ccf617d1e80465c38d74e5320d603b6c3b3e4bec49d", kill_on_drop: false }`
[INFO] [stdout] c5da6329a69d1630bf9e6ccf617d1e80465c38d74e5320d603b6c3b3e4bec49d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4cafe17f59057b973ac169b907e988a26a3c1749701a60b57678d62177982569
[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" "4cafe17f59057b973ac169b907e988a26a3c1749701a60b57678d62177982569", kill_on_drop: false }`
[INFO] [stderr]    Compiling punching_client v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::borrow::ToOwned::to_owned` that must be used
[INFO] [stdout]   --> src/cli/rec_p2p.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |         map.remove(&(self.session, self.max)).unwrap().to_owned();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: cloning is often expensive and is not expected to have side effects
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::borrow::ToOwned::to_owned` that must be used
[INFO] [stdout]   --> src/cli/rec_p2p.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |         map.remove(&(self.session, self.max)).unwrap().to_owned();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: cloning is often expensive and is not expected to have side effects
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.51s
[INFO] running `Command { std: "docker" "inspect" "4cafe17f59057b973ac169b907e988a26a3c1749701a60b57678d62177982569", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cafe17f59057b973ac169b907e988a26a3c1749701a60b57678d62177982569", kill_on_drop: false }`
[INFO] [stdout] 4cafe17f59057b973ac169b907e988a26a3c1749701a60b57678d62177982569
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c0571bfba6dece7d3baa4516fc942107e0d5c9c81a31af1909bcd11293edea28
[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" "c0571bfba6dece7d3baa4516fc942107e0d5c9c81a31af1909bcd11293edea28", kill_on_drop: false }`
[INFO] [stderr] warning: unused return value of `std::borrow::ToOwned::to_owned` that must be used
[INFO] [stderr]   --> src/cli/rec_p2p.rs:47:9
[INFO] [stderr]    |
[INFO] [stderr] 47 |         map.remove(&(self.session, self.max)).unwrap().to_owned();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: cloning is often expensive and is not expected to have side effects
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::borrow::ToOwned::to_owned` that must be used
[INFO] [stderr]   --> src/cli/rec_p2p.rs:47:9
[INFO] [stderr]    |
[INFO] [stderr] 47 |         map.remove(&(self.session, self.max)).unwrap().to_owned();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: cloning is often expensive and is not expected to have side effects
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/punching_client-99466266e0359527
[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]    Doc-tests punching_client
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stdout] test src/cli/callee.rs - cli::callee::listen (line 9) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/cli/callee.rs - cli::callee::listen (line 9) stdout ----
[INFO] [stdout] error: this file contains an unclosed delimiter
[INFO] [stdout]   --> src/cli/callee.rs:19:2
[INFO] [stdout]    |
[INFO] [stdout] 3  | fn main() {
[INFO] [stdout]    |           - unclosed delimiter
[INFO] [stdout] 4  | use async_std::task::block_on;
[INFO] [stdout] 5  |  fn echo(msg:&Vec<u8>)->Vec<u8>{
[INFO] [stdout]    |                                - unclosed delimiter
[INFO] [stdout] ...
[INFO] [stdout] 13 | }
[INFO] [stdout]    |  ^
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `.`, `;`, `?`, `}`, or an operator, found keyword `fn`
[INFO] [stdout]  --> src/cli/callee.rs:13:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn main() {
[INFO] [stdout]   |           - unclosed delimiter
[INFO] [stdout] ...
[INFO] [stdout] 6 |     msg.to_vec()
[INFO] [stdout]   |                 -
[INFO] [stdout]   |                 |
[INFO] [stdout]   |                 expected one of `.`, `;`, `?`, `}`, or an operator
[INFO] [stdout]   |                 help: `}` may belong here
[INFO] [stdout] 7 | fn main() {
[INFO] [stdout]   | ^^ unexpected token
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/cli/callee.rs - cli::callee::listen (line 9)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c0571bfba6dece7d3baa4516fc942107e0d5c9c81a31af1909bcd11293edea28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0571bfba6dece7d3baa4516fc942107e0d5c9c81a31af1909bcd11293edea28", kill_on_drop: false }`
[INFO] [stdout] c0571bfba6dece7d3baa4516fc942107e0d5c9c81a31af1909bcd11293edea28
