[INFO] crate tokio-zookeeper 0.1.3 is already in cache [INFO] checking tokio-zookeeper-0.1.3 against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393 [INFO] extracting crate tokio-zookeeper 0.1.3 into /workspace/builds/worker-6/source [INFO] validating manifest of crates.io crate tokio-zookeeper 0.1.3 on toolchain 45d050cde277b22a755847338f2acc2c7b834141 [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking crates.io crate tokio-zookeeper 0.1.3 [INFO] finished tweaking crates.io crate tokio-zookeeper 0.1.3 [INFO] tweaked toml for crates.io crate tokio-zookeeper 0.1.3 written to /workspace/builds/worker-6/source/Cargo.toml [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 48ac14eabdfb99972a5b9bf23ee251d42970b919d7de40ea08de637eb26a54b7 [INFO] running `"docker" "start" "-a" "48ac14eabdfb99972a5b9bf23ee251d42970b919d7de40ea08de637eb26a54b7"` [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Checking futures v0.1.29 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Compiling proc-macro2 v1.0.10 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Checking fnv v1.0.6 [INFO] [stderr] Compiling syn v1.0.18 [INFO] [stderr] Compiling failure_derive v0.1.7 [INFO] [stderr] Checking rustc-demangle v0.1.16 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Compiling backtrace-sys v0.1.37 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking dirs-sys v0.3.4 [INFO] [stderr] Checking time v0.1.43 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Checking dirs v2.0.2 [INFO] [stderr] Checking parking_lot_core v0.6.2 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling memoffset v0.5.4 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling num-traits v0.2.11 [INFO] [stderr] Compiling num-integer v0.1.42 [INFO] [stderr] Checking term v0.6.1 [INFO] [stderr] Checking mio v0.6.21 [INFO] [stderr] Checking parking_lot v0.9.0 [INFO] [stderr] Compiling quote v1.0.4 [INFO] [stderr] Checking backtrace v0.3.46 [INFO] [stderr] Checking tokio-io v0.1.13 [INFO] [stderr] Checking tokio-sync v0.1.8 [INFO] [stderr] Checking mio-uds v0.6.7 [INFO] [stderr] Checking tokio-executor v0.1.10 [INFO] [stderr] Checking crossbeam-queue v0.2.1 [INFO] [stderr] Checking crossbeam-channel v0.4.2 [INFO] [stderr] Checking tokio-timer v0.2.13 [INFO] [stderr] Checking tokio-current-thread v0.1.7 [INFO] [stderr] Checking tokio-codec v0.1.2 [INFO] [stderr] Checking crossbeam-deque v0.7.3 [INFO] [stderr] Checking tokio-reactor v0.1.12 [INFO] [stderr] Checking tokio-threadpool v0.1.18 [INFO] [stderr] Checking slog-async v2.5.0 [INFO] [stderr] Checking chrono v0.4.11 [INFO] [stderr] Checking tokio-uds v0.2.6 [INFO] [stderr] Checking tokio-udp v0.1.6 [INFO] [stderr] Checking tokio-tcp v0.1.4 [INFO] [stderr] Checking tokio-fs v0.1.7 [INFO] [stderr] Checking tokio v0.1.22 [INFO] [stderr] Checking slog-term v2.5.0 [INFO] [stderr] Compiling synstructure v0.12.3 [INFO] [stderr] Checking failure v0.1.7 [INFO] [stderr] Checking tokio-zookeeper v0.1.3 (/opt/rustwide/workdir) [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/request.rs:94:9 [INFO] [stderr] | [INFO] [stderr] 94 | try!(writer.write_u8(*self)); [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/request.rs:101:9 [INFO] [stderr] | [INFO] [stderr] 101 | try!(writer.write_i32::(self.len() as i32)); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/request.rs:108:9 [INFO] [stderr] | [INFO] [stderr] 108 | try!(writer.write_i32::(self.len() as i32)); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:35:19 [INFO] [stderr] | [INFO] [stderr] 35 | let len = try!(read.read_i32::()); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:38:24 [INFO] [stderr] | [INFO] [stderr] 38 | items.push(try!(read.read_string())); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:47:20 [INFO] [stderr] | [INFO] [stderr] 47 | czxid: try!(read.read_i64::()), [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:48:20 [INFO] [stderr] | [INFO] [stderr] 48 | mzxid: try!(read.read_i64::()), [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:49:20 [INFO] [stderr] | [INFO] [stderr] 49 | ctime: try!(read.read_i64::()), [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:50:20 [INFO] [stderr] | [INFO] [stderr] 50 | mtime: try!(read.read_i64::()), [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:51:22 [INFO] [stderr] | [INFO] [stderr] 51 | version: try!(read.read_i32::()), [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:52:23 [INFO] [stderr] | [INFO] [stderr] 52 | cversion: try!(read.read_i32::()), [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:53:23 [INFO] [stderr] | [INFO] [stderr] 53 | aversion: try!(read.read_i32::()), [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:54:30 [INFO] [stderr] | [INFO] [stderr] 54 | ephemeral_owner: try!(read.read_i64::()), [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:55:26 [INFO] [stderr] | [INFO] [stderr] 55 | data_length: try!(read.read_i32::()), [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:56:27 [INFO] [stderr] | [INFO] [stderr] 56 | num_children: try!(read.read_i32::()), [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:57:20 [INFO] [stderr] | [INFO] [stderr] 57 | pzxid: try!(read.read_i64::()), [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:77:19 [INFO] [stderr] | [INFO] [stderr] 77 | let len = try!(read.read_i32::()); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:80:24 [INFO] [stderr] | [INFO] [stderr] 80 | items.push(try!(Acl::read_from(read))); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:88:21 [INFO] [stderr] | [INFO] [stderr] 88 | let perms = try!(Permission::read_from(read)); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:89:22 [INFO] [stderr] | [INFO] [stderr] 89 | let scheme = try!(read.read_string()); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:90:18 [INFO] [stderr] | [INFO] [stderr] 90 | let id = try!(read.read_string()); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:97:33 [INFO] [stderr] | [INFO] [stderr] 97 | Ok(Permission::from_raw(try!(read.read_u32::()))) [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:107:19 [INFO] [stderr] | [INFO] [stderr] 107 | let len = try!(self.read_i32::()); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:110:20 [INFO] [stderr] | [INFO] [stderr] 110 | let read = try!(self.read(&mut buf)); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:128:19 [INFO] [stderr] | [INFO] [stderr] 128 | let raw = try!(self.read_buffer()); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/proto/mod.rs:544:22 [INFO] [stderr] | [INFO] [stderr] 544 | Reconnecting(Box, Error = failure::Error> + Send + 'static>), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future, Error = failure::Error> + Send + 'static` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/request.rs:94:9 [INFO] [stderr] | [INFO] [stderr] 94 | try!(writer.write_u8(*self)); [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/request.rs:101:9 [INFO] [stderr] | [INFO] [stderr] 101 | try!(writer.write_i32::(self.len() as i32)); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/request.rs:108:9 [INFO] [stderr] | [INFO] [stderr] 108 | try!(writer.write_i32::(self.len() as i32)); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:35:19 [INFO] [stderr] | [INFO] [stderr] 35 | let len = try!(read.read_i32::()); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:38:24 [INFO] [stderr] | [INFO] [stderr] 38 | items.push(try!(read.read_string())); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:47:20 [INFO] [stderr] | [INFO] [stderr] 47 | czxid: try!(read.read_i64::()), [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:48:20 [INFO] [stderr] | [INFO] [stderr] 48 | mzxid: try!(read.read_i64::()), [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:49:20 [INFO] [stderr] | [INFO] [stderr] 49 | ctime: try!(read.read_i64::()), [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:50:20 [INFO] [stderr] | [INFO] [stderr] 50 | mtime: try!(read.read_i64::()), [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:51:22 [INFO] [stderr] | [INFO] [stderr] 51 | version: try!(read.read_i32::()), [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:52:23 [INFO] [stderr] | [INFO] [stderr] 52 | cversion: try!(read.read_i32::()), [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:53:23 [INFO] [stderr] | [INFO] [stderr] 53 | aversion: try!(read.read_i32::()), [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:54:30 [INFO] [stderr] | [INFO] [stderr] 54 | ephemeral_owner: try!(read.read_i64::()), [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:55:26 [INFO] [stderr] | [INFO] [stderr] 55 | data_length: try!(read.read_i32::()), [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:56:27 [INFO] [stderr] | [INFO] [stderr] 56 | num_children: try!(read.read_i32::()), [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:57:20 [INFO] [stderr] | [INFO] [stderr] 57 | pzxid: try!(read.read_i64::()), [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:77:19 [INFO] [stderr] | [INFO] [stderr] 77 | let len = try!(read.read_i32::()); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:80:24 [INFO] [stderr] | [INFO] [stderr] 80 | items.push(try!(Acl::read_from(read))); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:88:21 [INFO] [stderr] | [INFO] [stderr] 88 | let perms = try!(Permission::read_from(read)); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:89:22 [INFO] [stderr] | [INFO] [stderr] 89 | let scheme = try!(read.read_string()); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:90:18 [INFO] [stderr] | [INFO] [stderr] 90 | let id = try!(read.read_string()); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:97:33 [INFO] [stderr] | [INFO] [stderr] 97 | Ok(Permission::from_raw(try!(read.read_u32::()))) [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:107:19 [INFO] [stderr] | [INFO] [stderr] 107 | let len = try!(self.read_i32::()); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:110:20 [INFO] [stderr] | [INFO] [stderr] 110 | let read = try!(self.read(&mut buf)); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/proto/response.rs:128:19 [INFO] [stderr] | [INFO] [stderr] 128 | let raw = try!(self.read_buffer()); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/proto/mod.rs:544:22 [INFO] [stderr] | [INFO] [stderr] 544 | Reconnecting(Box, Error = failure::Error> + Send + 'static>), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future, Error = failure::Error> + Send + 'static` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::result::Result::::is_ok` that must be used [INFO] [stderr] --> src/proto/mod.rs:455:25 [INFO] [stderr] | [INFO] [stderr] 455 | tx.send(Err(e)).is_ok(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::result::Result::::is_ok` that must be used [INFO] [stderr] --> src/proto/mod.rs:481:25 [INFO] [stderr] | [INFO] [stderr] 481 | tx.send(Ok(r)).is_ok(); // if receiver doesn't care, we don't either [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stderr] [INFO] [stderr] warning: 28 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::result::Result::::is_ok` that must be used [INFO] [stderr] --> src/proto/mod.rs:455:25 [INFO] [stderr] | [INFO] [stderr] 455 | tx.send(Err(e)).is_ok(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::result::Result::::is_ok` that must be used [INFO] [stderr] --> src/proto/mod.rs:481:25 [INFO] [stderr] | [INFO] [stderr] 481 | tx.send(Ok(r)).is_ok(); // if receiver doesn't care, we don't either [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stderr] [INFO] [stderr] warning: 28 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 48.31s [INFO] running `"docker" "inspect" "48ac14eabdfb99972a5b9bf23ee251d42970b919d7de40ea08de637eb26a54b7"` [INFO] running `"docker" "rm" "-f" "48ac14eabdfb99972a5b9bf23ee251d42970b919d7de40ea08de637eb26a54b7"` [INFO] [stdout] 48ac14eabdfb99972a5b9bf23ee251d42970b919d7de40ea08de637eb26a54b7