[INFO] fetching crate tmq-zmq 0.9.0...
[INFO] checking tmq-zmq-0.9.0 against master#cfbc6d4cf1acbac5c025acf8ed68929caa551df3 for pr-75494-beta
[INFO] extracting crate tmq-zmq 0.9.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate tmq-zmq 0.9.0 on toolchain cfbc6d4cf1acbac5c025acf8ed68929caa551df3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tmq-zmq 0.9.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate tmq-zmq 0.9.0
[INFO] tweaked toml for crates.io crate tmq-zmq 0.9.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tmq-zmq-sys v0.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fb552729a4722add5a916fa3c7799c49fa68e0f2723820acdd2c2f76237eee35
[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" "fb552729a4722add5a916fa3c7799c49fa68e0f2723820acdd2c2f76237eee35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb552729a4722add5a916fa3c7799c49fa68e0f2723820acdd2c2f76237eee35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb552729a4722add5a916fa3c7799c49fa68e0f2723820acdd2c2f76237eee35", kill_on_drop: false }`
[INFO] [stdout] fb552729a4722add5a916fa3c7799c49fa68e0f2723820acdd2c2f76237eee35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=forbid" "-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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f79bf73ff16429e42ef1f91b18a031a3611945bbb85af85c4af1e6ee4acd4fc
[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" "7f79bf73ff16429e42ef1f91b18a031a3611945bbb85af85c4af1e6ee4acd4fc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]     Checking atom v0.3.5
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling standback v0.2.9
[INFO] [stderr]    Compiling time v0.2.16
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking nix v0.11.1
[INFO] [stderr]    Compiling metadeps v1.1.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking pulse v0.5.3
[INFO] [stderr]    Compiling tmq-zmq-sys v0.9.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]    Compiling tmq-zmq v0.9.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stdout]  --> build.rs:7:63
[INFO] [stdout]   |
[INFO] [stdout] 7 |     for has in ["ipc", "pgm", "tipc", "norm", "curve", "gssapi"].into_iter() {
[INFO] [stdout]   |                                                                  ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(array_into_iter)]` on by default
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/sockopt.rs:62:21
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let mut value = try!(get_bytes(sock, opt, size));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/sockopt.rs:117:27
[INFO] [stdout]     |
[INFO] [stdout] 117 |         let result: i32 = try!(get(sock, opt));
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:618:17
[INFO] [stdout]     |
[INFO] [stdout] 618 |                 try!(self.send(last.into(), flags | SNDMORE));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:672:24
[INFO] [stdout]     |
[INFO] [stdout] 672 |             let part = try!(self.recv_bytes(flags));
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:675:30
[INFO] [stdout]     |
[INFO] [stdout] 675 |             let more_parts = try!(self.get_rcvmore());
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:930:1
[INFO] [stdout]     |
[INFO] [stdout] 930 | / bitflags! {
[INFO] [stdout] 931 | |     /// Type representing pending socket events.
[INFO] [stdout] 932 | |     pub flags PollEvents: i16 {
[INFO] [stdout] 933 | |         /// For `poll()`, specifies to signal when a message/some data
[INFO] [stdout] ...   |
[INFO] [stdout] 943 | |     }
[INFO] [stdout] 944 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:930:1
[INFO] [stdout]     |
[INFO] [stdout] 930 | / bitflags! {
[INFO] [stdout] 931 | |     /// Type representing pending socket events.
[INFO] [stdout] 932 | |     pub flags PollEvents: i16 {
[INFO] [stdout] 933 | |         /// For `poll()`, specifies to signal when a message/some data
[INFO] [stdout] ...   |
[INFO] [stdout] 943 | |     }
[INFO] [stdout] 944 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:1208:17
[INFO] [stdout]      |
[INFO] [stdout] 1208 |     let c_str = try!(ffi::CString::new(data));
[INFO] [stdout]      |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'libc::int64_t': Use i64 instead.
[INFO] [stdout]  --> src/sockopt.rs:3:35
[INFO] [stdout]   |
[INFO] [stdout] 3 | use libc::{c_int, c_uint, size_t, int64_t, uint64_t};
[INFO] [stdout]   |                                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'libc::uint64_t': Use u64 instead.
[INFO] [stdout]  --> src/sockopt.rs:3:44
[INFO] [stdout]   |
[INFO] [stdout] 3 | use libc::{c_int, c_uint, size_t, int64_t, uint64_t};
[INFO] [stdout]   |                                            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'libc::int64_t': Use i64 instead.
[INFO] [stdout]   --> src/sockopt.rs:42:17
[INFO] [stdout]    |
[INFO] [stdout] 42 | getsockopt_num!(int64_t, i64);
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'libc::uint64_t': Use u64 instead.
[INFO] [stdout]   --> src/sockopt.rs:43:17
[INFO] [stdout]    |
[INFO] [stdout] 43 | getsockopt_num!(uint64_t, u64);
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]     --> src/lib.rs:1131:52
[INFO] [stdout]      |
[INFO] [stdout] 1131 |             EncodeError::FromUtf8Error(ref e) => e.description(),
[INFO] [stdout]      |                                                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]     --> src/lib.rs:1189:47
[INFO] [stdout]      |
[INFO] [stdout] 1189 |             DecodeError::NulError(ref e) => e.description(),
[INFO] [stdout]      |                                               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking quickcheck v0.6.2
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]     Checking time-macros v0.1.0
[INFO] [stderr]     Checking timebomb v0.1.2
[INFO] [stdout] error[E0463]: can't find crate for `zmq`
[INFO] [stdout]  --> examples/stream/logserver.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | extern crate zmq;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tmq-zmq`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0463]: can't find crate for `zmq`
[INFO] [stdout]  --> examples/zguide/msreader/main.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | extern crate zmq;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `zmq`
[INFO] [stdout]  --> examples/zguide/asyncsrv/main.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | extern crate zmq;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `zmq`
[INFO] [stdout]  --> examples/zguide/lvcache/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate zmq;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `zmq`
[INFO] [stdout]  --> examples/zguide/rtdealer/main.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | extern crate zmq;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `zmq`
[INFO] [stdout]  --> examples/zguide/helloworld_client/main.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | extern crate zmq;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `zmq`
[INFO] [stdout]  --> examples/zguide/pathopub/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate zmq;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `zmq`
[INFO] [stdout]  --> examples/zguide/wuproxy/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate zmq;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `zmq`
[INFO] [stdout]  --> tests/test.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate zmq;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `zmq`
[INFO] [stdout]  --> examples/zguide/weather_client/main.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | extern crate zmq;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `zmq`
[INFO] [stdout]  --> examples/zguide/msgqueue/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate zmq;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `zmq`
[INFO] [stdout]  --> examples/zguide/rrbroker/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate zmq;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `zmq`
[INFO] [stdout]  --> examples/zguide/rrworker/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate zmq;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `zmq`
[INFO] [stdout]  --> examples/zguide/mspoller/main.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | extern crate zmq;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `zmq`
[INFO] [stdout]  --> examples/zguide/fileio3/main.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | extern crate zmq;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `zmq`
[INFO] [stdout]  --> examples/zguide/taskwork2/main.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | extern crate zmq;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "7f79bf73ff16429e42ef1f91b18a031a3611945bbb85af85c4af1e6ee4acd4fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f79bf73ff16429e42ef1f91b18a031a3611945bbb85af85c4af1e6ee4acd4fc", kill_on_drop: false }`
[INFO] [stdout] 7f79bf73ff16429e42ef1f91b18a031a3611945bbb85af85c4af1e6ee4acd4fc
