[INFO] fetching crate zmq-rs 0.1.8...
[INFO] testing zmq-rs-0.1.8 against 1.49.0 for beta-1.50-1
[INFO] extracting crate zmq-rs 0.1.8 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate zmq-rs 0.1.8 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 zmq-rs 0.1.8
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate zmq-rs 0.1.8
[INFO] tweaked toml for crates.io crate zmq-rs 0.1.8 written to /workspace/builds/worker-0/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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0220b10d35cfb10e21486fa0ec93c94a13e01affc081cbf4458a37a616eaaaee
[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" "0220b10d35cfb10e21486fa0ec93c94a13e01affc081cbf4458a37a616eaaaee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0220b10d35cfb10e21486fa0ec93c94a13e01affc081cbf4458a37a616eaaaee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0220b10d35cfb10e21486fa0ec93c94a13e01affc081cbf4458a37a616eaaaee", kill_on_drop: false }`
[INFO] [stdout] 0220b10d35cfb10e21486fa0ec93c94a13e01affc081cbf4458a37a616eaaaee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 29c9e5a5b594334719b25b50f3189d9f9f5c16f89a3d53d737e0ee49f0cc5088
[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" "29c9e5a5b594334719b25b50f3189d9f9f5c16f89a3d53d737e0ee49f0cc5088", kill_on_drop: false }`
[INFO] [stderr]    Compiling zmq-ffi v0.1.3
[INFO] [stderr]    Compiling zmq-rs v0.1.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/socket.rs:389:23
[INFO] [stdout]     |
[INFO] [stdout] 389 |         let mut msg = try!(Message::new());
[INFO] [stdout]     |                       ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/socket.rs:400:19
[INFO] [stdout]     |
[INFO] [stdout] 400 |         let msg = try!(Message::from_slice(data));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:331:27
[INFO] [stdout]     |
[INFO] [stdout] 331 |             let mut msg = try!(Message::with_capcity(data.len()));
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/socket.rs:580:5
[INFO] [stdout]     |
[INFO] [stdout] 580 |     /// Get last endpoint bound for TCP and IPC transports
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/socket.rs:581:5
[INFO] [stdout]     |
[INFO] [stdout] 581 |     /// if last endpoint has more than 2048 bytes, method call will be failed.
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/errno.rs:43:25
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub const EFSM: Errno = (ZMQ_HAUSNUMERO + 51);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/errno.rs:44:35
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub const ENOCOMPATPROTO: Errno = (ZMQ_HAUSNUMERO + 52);
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/errno.rs:45:26
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub const ETERM: Errno = (ZMQ_HAUSNUMERO + 53);
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/errno.rs:46:29
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub const EMTHREAD: Errno = (ZMQ_HAUSNUMERO + 54);
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.73s
[INFO] running `Command { std: "docker" "inspect" "29c9e5a5b594334719b25b50f3189d9f9f5c16f89a3d53d737e0ee49f0cc5088", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29c9e5a5b594334719b25b50f3189d9f9f5c16f89a3d53d737e0ee49f0cc5088", kill_on_drop: false }`
[INFO] [stdout] 29c9e5a5b594334719b25b50f3189d9f9f5c16f89a3d53d737e0ee49f0cc5088
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--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] b1e804175d4b262d3af2516aba8ee49900a09c8c5855c5fa6eeae35b2d5ff209
[INFO] running `Command { std: "docker" "start" "-a" "b1e804175d4b262d3af2516aba8ee49900a09c8c5855c5fa6eeae35b2d5ff209", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling zmq-rs v0.1.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/socket.rs:389:23
[INFO] [stdout]     |
[INFO] [stdout] 389 |         let mut msg = try!(Message::new());
[INFO] [stdout]     |                       ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/socket.rs:400:19
[INFO] [stdout]     |
[INFO] [stdout] 400 |         let msg = try!(Message::from_slice(data));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:331:27
[INFO] [stdout]     |
[INFO] [stdout] 331 |             let mut msg = try!(Message::with_capcity(data.len()));
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/socket.rs:580:5
[INFO] [stdout]     |
[INFO] [stdout] 580 |     /// Get last endpoint bound for TCP and IPC transports
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/socket.rs:581:5
[INFO] [stdout]     |
[INFO] [stdout] 581 |     /// if last endpoint has more than 2048 bytes, method call will be failed.
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/errno.rs:43:25
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub const EFSM: Errno = (ZMQ_HAUSNUMERO + 51);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/errno.rs:44:35
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub const ENOCOMPATPROTO: Errno = (ZMQ_HAUSNUMERO + 52);
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/errno.rs:45:26
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub const ETERM: Errno = (ZMQ_HAUSNUMERO + 53);
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/errno.rs:46:29
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub const EMTHREAD: Errno = (ZMQ_HAUSNUMERO + 54);
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> examples/zguide/hwserver.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut context = zmq::Context::new().unwrap();
[INFO] [stdout]   |         ----^^^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Option::<T>::is_some` that must be used
[INFO] [stdout]   --> tests/lib.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 |     empty.get_meta("Socket-Type").is_some();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you intended to assert that this has a value, consider `.unwrap()` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Option::<T>::is_some` that must be used
[INFO] [stdout]   --> tests/lib.rs:73:5
[INFO] [stdout]    |
[INFO] [stdout] 73 |     empty.get_meta("Identity").is_some();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you intended to assert that this has a value, consider `.unwrap()` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Option::<T>::is_some` that must be used
[INFO] [stdout]   --> tests/lib.rs:74:5
[INFO] [stdout]    |
[INFO] [stdout] 74 |     empty.get_meta("Resource").is_some();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you intended to assert that this has a value, consider `.unwrap()` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/socket.rs:389:23
[INFO] [stdout]     |
[INFO] [stdout] 389 |         let mut msg = try!(Message::new());
[INFO] [stdout]     |                       ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/socket.rs:400:19
[INFO] [stdout]     |
[INFO] [stdout] 400 |         let msg = try!(Message::from_slice(data));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:331:27
[INFO] [stdout]     |
[INFO] [stdout] 331 |             let mut msg = try!(Message::with_capcity(data.len()));
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/socket.rs:580:5
[INFO] [stdout]     |
[INFO] [stdout] 580 |     /// Get last endpoint bound for TCP and IPC transports
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/socket.rs:581:5
[INFO] [stdout]     |
[INFO] [stdout] 581 |     /// if last endpoint has more than 2048 bytes, method call will be failed.
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/errno.rs:43:25
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub const EFSM: Errno = (ZMQ_HAUSNUMERO + 51);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/errno.rs:44:35
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub const ENOCOMPATPROTO: Errno = (ZMQ_HAUSNUMERO + 52);
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/errno.rs:45:26
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub const ETERM: Errno = (ZMQ_HAUSNUMERO + 53);
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/errno.rs:46:29
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub const EMTHREAD: Errno = (ZMQ_HAUSNUMERO + 54);
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.62s
[INFO] running `Command { std: "docker" "inspect" "b1e804175d4b262d3af2516aba8ee49900a09c8c5855c5fa6eeae35b2d5ff209", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1e804175d4b262d3af2516aba8ee49900a09c8c5855c5fa6eeae35b2d5ff209", kill_on_drop: false }`
[INFO] [stdout] b1e804175d4b262d3af2516aba8ee49900a09c8c5855c5fa6eeae35b2d5ff209
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6b16240a850cdde8c3bc3a4e12b98cdbf82a074af2a6fbcda730a428836a7ba8
[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" "6b16240a850cdde8c3bc3a4e12b98cdbf82a074af2a6fbcda730a428836a7ba8", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/socket.rs:389:23
[INFO] [stderr]     |
[INFO] [stderr] 389 |         let mut msg = try!(Message::new());
[INFO] [stderr]     |                       ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/socket.rs:400:19
[INFO] [stderr]     |
[INFO] [stderr] 400 |         let msg = try!(Message::from_slice(data));
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:331:27
[INFO] [stderr]     |
[INFO] [stderr] 331 |             let mut msg = try!(Message::with_capcity(data.len()));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/socket.rs:580:5
[INFO] [stderr]     |
[INFO] [stderr] 580 |     /// Get last endpoint bound for TCP and IPC transports
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/socket.rs:581:5
[INFO] [stderr]     |
[INFO] [stderr] 581 |     /// if last endpoint has more than 2048 bytes, method call will be failed.
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stderr]     |
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/errno.rs:43:25
[INFO] [stderr]    |
[INFO] [stderr] 43 | pub const EFSM: Errno = (ZMQ_HAUSNUMERO + 51);
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/errno.rs:44:35
[INFO] [stderr]    |
[INFO] [stderr] 44 | pub const ENOCOMPATPROTO: Errno = (ZMQ_HAUSNUMERO + 52);
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/errno.rs:45:26
[INFO] [stderr]    |
[INFO] [stderr] 45 | pub const ETERM: Errno = (ZMQ_HAUSNUMERO + 53);
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/errno.rs:46:29
[INFO] [stderr]    |
[INFO] [stderr] 46 | pub const EMTHREAD: Errno = (ZMQ_HAUSNUMERO + 54);
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/socket.rs:389:23
[INFO] [stderr]     |
[INFO] [stderr] 389 |         let mut msg = try!(Message::new());
[INFO] [stderr]     |                       ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/socket.rs:400:19
[INFO] [stderr]     |
[INFO] [stderr] 400 |         let msg = try!(Message::from_slice(data));
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:331:27
[INFO] [stderr]     |
[INFO] [stderr] 331 |             let mut msg = try!(Message::with_capcity(data.len()));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/socket.rs:580:5
[INFO] [stderr]     |
[INFO] [stderr] 580 |     /// Get last endpoint bound for TCP and IPC transports
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/socket.rs:581:5
[INFO] [stderr]     |
[INFO] [stderr] 581 |     /// if last endpoint has more than 2048 bytes, method call will be failed.
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stderr]     |
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/errno.rs:43:25
[INFO] [stderr]    |
[INFO] [stderr] 43 | pub const EFSM: Errno = (ZMQ_HAUSNUMERO + 51);
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/errno.rs:44:35
[INFO] [stderr]    |
[INFO] [stderr] 44 | pub const ENOCOMPATPROTO: Errno = (ZMQ_HAUSNUMERO + 52);
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/errno.rs:45:26
[INFO] [stderr]    |
[INFO] [stderr] 45 | pub const ETERM: Errno = (ZMQ_HAUSNUMERO + 53);
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/errno.rs:46:29
[INFO] [stderr]    |
[INFO] [stderr] 46 | pub const EMTHREAD: Errno = (ZMQ_HAUSNUMERO + 54);
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `Option::<T>::is_some` that must be used
[INFO] [stderr]   --> tests/lib.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 |     empty.get_meta("Socket-Type").is_some();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: if you intended to assert that this has a value, consider `.unwrap()` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `Option::<T>::is_some` that must be used
[INFO] [stderr]   --> tests/lib.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 73 |     empty.get_meta("Identity").is_some();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: if you intended to assert that this has a value, consider `.unwrap()` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `Option::<T>::is_some` that must be used
[INFO] [stderr]   --> tests/lib.rs:74:5
[INFO] [stderr]    |
[INFO] [stderr] 74 |     empty.get_meta("Resource").is_some();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: if you intended to assert that this has a value, consider `.unwrap()` instead
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> examples/zguide/hwserver.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let mut context = zmq::Context::new().unwrap();
[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] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/zmq_rs-571dca7fbd127c98
[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/lib-16ff5f72757b0430
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stderr]    Doc-tests zmq-rs
[INFO] [stdout] test capability_test ... ok
[INFO] [stdout] test version_test ... ok
[INFO] [stdout] test context_test ... ok
[INFO] [stdout] test message_test ... ok
[INFO] [stdout] test socket_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> /opt/rustwide/workdir/src/errno.rs:43:25
[INFO] [stderr]    |
[INFO] [stderr] 43 | pub const EFSM: Errno = (ZMQ_HAUSNUMERO + 51);
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> /opt/rustwide/workdir/src/errno.rs:44:35
[INFO] [stderr]    |
[INFO] [stderr] 44 | pub const ENOCOMPATPROTO: Errno = (ZMQ_HAUSNUMERO + 52);
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> /opt/rustwide/workdir/src/errno.rs:45:26
[INFO] [stderr]    |
[INFO] [stderr] 45 | pub const ETERM: Errno = (ZMQ_HAUSNUMERO + 53);
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> /opt/rustwide/workdir/src/errno.rs:46:29
[INFO] [stderr]    |
[INFO] [stderr] 46 | pub const EMTHREAD: Errno = (ZMQ_HAUSNUMERO + 54);
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[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 `Command { std: "docker" "inspect" "6b16240a850cdde8c3bc3a4e12b98cdbf82a074af2a6fbcda730a428836a7ba8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b16240a850cdde8c3bc3a4e12b98cdbf82a074af2a6fbcda730a428836a7ba8", kill_on_drop: false }`
[INFO] [stdout] 6b16240a850cdde8c3bc3a4e12b98cdbf82a074af2a6fbcda730a428836a7ba8