[INFO] fetching crate slacker 0.1.3...
[INFO] testing slacker-0.1.3 against 1.55.0 for beta-1.56-1
[INFO] extracting crate slacker 0.1.3 into /workspace/builds/worker-106/source
[INFO] validating manifest of crates.io crate slacker 0.1.3 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate slacker 0.1.3
[INFO] finished tweaking crates.io crate slacker 0.1.3
[INFO] tweaked toml for crates.io crate slacker 0.1.3 written to /workspace/builds/worker-106/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded maplit v0.1.6
[INFO] [stderr]   Downloaded smallvec v0.2.1
[INFO] [stderr]   Downloaded take v0.1.0
[INFO] [stderr]   Downloaded tokio-proto v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 144599822add8260e009ee0a1adb0bd7a8bfc9ce9541a080f9c9cc06d0eb50f2
[INFO] running `Command { std: "docker" "start" "-a" "144599822add8260e009ee0a1adb0bd7a8bfc9ce9541a080f9c9cc06d0eb50f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "144599822add8260e009ee0a1adb0bd7a8bfc9ce9541a080f9c9cc06d0eb50f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "144599822add8260e009ee0a1adb0bd7a8bfc9ce9541a080f9c9cc06d0eb50f2", kill_on_drop: false }`
[INFO] [stdout] 144599822add8260e009ee0a1adb0bd7a8bfc9ce9541a080f9c9cc06d0eb50f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b2ab7fc985fc8dab1f06725af00fcf1baed14ef03eda0e9db865c077de745da
[INFO] running `Command { std: "docker" "start" "-a" "9b2ab7fc985fc8dab1f06725af00fcf1baed14ef03eda0e9db865c077de745da", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling futures v0.1.31
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[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
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[INFO] [stderr]    Compiling slab v0.4.4
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling scoped-tls v0.1.2
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling slab v0.3.0
[INFO] [stderr]    Compiling take v0.1.0
[INFO] [stderr]    Compiling smallvec v0.2.1
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling smallvec v0.6.14
[INFO] [stderr]    Compiling tokio-sync v0.1.8
[INFO] [stderr]    Compiling tokio-service v0.1.0
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
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[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling rand v0.4.6
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[INFO] [stderr]    Compiling nom v3.2.1
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling tokio-executor v0.1.10
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling tokio-current-thread v0.1.7
[INFO] [stderr]    Compiling tokio-timer v0.2.13
[INFO] [stderr]    Compiling crossbeam-deque v0.7.4
[INFO] [stderr]    Compiling tokio-reactor v0.1.12
[INFO] [stderr]    Compiling tokio-codec v0.1.2
[INFO] [stderr]    Compiling tokio-threadpool v0.1.18
[INFO] [stderr]    Compiling tokio-tcp v0.1.4
[INFO] [stderr]    Compiling tokio-udp v0.1.6
[INFO] [stderr]    Compiling tokio-uds v0.2.7
[INFO] [stderr]    Compiling tokio-fs v0.1.7
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling tokio-core v0.1.18
[INFO] [stderr]    Compiling tokio-proto v0.1.1
[INFO] [stderr]    Compiling slacker v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |         try!(cur.write_u16::<BigEndian>(v.len() as u16));
[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/codecs.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |         try!(cur.write_u32::<BigEndian>(v.len() as u32));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |         try!(buf.write_u8(header.version));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |         try!(buf.write_i32::<BigEndian>(header.serial_id));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |         try!(buf.write_u8(header.packet_type));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:43:17
[INFO] [stdout]    |
[INFO] [stdout] 43 |                 try!(buf.write_u8(req.content_type));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:44:17
[INFO] [stdout]    |
[INFO] [stdout] 44 |                 try!(write_string(&mut buf, &req.fname, 2));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:45:17
[INFO] [stdout]    |
[INFO] [stdout] 45 |                 try!(write_bytes(&mut buf, &req.arguments, 4));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:48:17
[INFO] [stdout]    |
[INFO] [stdout] 48 |                 try!(buf.write_u8(resp.content_type));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:49:17
[INFO] [stdout]    |
[INFO] [stdout] 49 |                 try!(buf.write_u8(resp.result_code));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:50:17
[INFO] [stdout]    |
[INFO] [stdout] 50 |                 try!(write_bytes(&mut buf, &resp.data, 4));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:53:17
[INFO] [stdout]    |
[INFO] [stdout] 53 |                 try!(buf.write_u8(resp.result_code));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:57:17
[INFO] [stdout]    |
[INFO] [stdout] 57 |                 try!(buf.write_u8(req.inspect_type));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:58:17
[INFO] [stdout]    |
[INFO] [stdout] 58 |                 try!(write_bytes(&mut buf, &req.data, 2));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:61:17
[INFO] [stdout]    |
[INFO] [stdout] 61 |                 try!(write_bytes(&mut buf, &resp.data, 2));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:64:17
[INFO] [stdout]    |
[INFO] [stdout] 64 |                 try!(buf.write_i32::<BigEndian>(req.req_id));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/service.rs:16:25
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub type RpcFn<T> = Box<Fn(&Vec<T>) -> Receiver<T> + Send + Sync + 'static>;
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Vec<T>) -> Receiver<T> + Send + Sync + 'static`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/service.rs:17:29
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub type RpcFnSync<T> = Arc<Fn(&Vec<T>) -> T + Send + Sync + 'static>;
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Vec<T>) -> T + Send + Sync + 'static`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/service.rs:24:21
[INFO] [stdout]    |
[INFO] [stdout] 24 |     serializer: Arc<Serializer<Format = T>>,
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Serializer<Format = T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/service.rs:33:25
[INFO] [stdout]    |
[INFO] [stdout] 33 |         serializer: Arc<Serializer<Format = T>>,
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Serializer<Format = T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/service.rs:49:23
[INFO] [stdout]    |
[INFO] [stdout] 49 |     type Future = Box<Future<Item=Self::Response, Error=Self::Error>>;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=Self::Response, Error=Self::Error>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/service.rs:106:21
[INFO] [stdout]     |
[INFO] [stdout] 106 |     serializer: Arc<Serializer<Format = T>>,
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Serializer<Format = T>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/service.rs:117:25
[INFO] [stdout]     |
[INFO] [stdout] 117 |         serializer: Arc<Serializer<Format = T>>,
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Serializer<Format = T>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/service.rs:137:23
[INFO] [stdout]     |
[INFO] [stdout] 137 |     type Future = Box<Future<Item=Self::Response, Error=Self::Error>>;
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=Self::Response, Error=Self::Error>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/client.rs:34:14
[INFO] [stdout]    |
[INFO] [stdout] 34 |     ) -> Box<Future<Item = Client, Error = io::Error>> {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Client, Error = io::Error>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/client.rs:60:23
[INFO] [stdout]    |
[INFO] [stdout] 60 |     type Future = Box<Future<Item=Self::Response, Error=Self::Error>>;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=Self::Response, Error=Self::Error>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/client.rs:73:14
[INFO] [stdout]    |
[INFO] [stdout] 73 |     ) -> Box<Future<Item=Json, Error=io::Error>> {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=Json, Error=io::Error>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:117:31
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn ping(&self) -> Box<Future<Item=(), Error=io::Error>> {
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=(), Error=io::Error>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `tio::codec::Framed`: Moved to tokio-codec
[INFO] [stdout]   --> src/lib.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 | use tio::codec::Framed;
[INFO] [stdout]    |                 ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `tio::codec::Framed`: Moved to tokio-codec
[INFO] [stdout]   --> src/lib.rs:47:22
[INFO] [stdout]    |
[INFO] [stdout] 47 |     type Transport = Framed<TcpStream, SlackerCodec>;
[INFO] [stdout]    |                      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `tio::codec::Framed`: Moved to tokio-codec
[INFO] [stdout]    --> src/lib.rs:110:22
[INFO] [stdout]     |
[INFO] [stdout] 110 |     type Transport = Framed<TcpStream, SlackerCodec>;
[INFO] [stdout]     |                      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `tio::AsyncRead::framed`: Use tokio_codec::Decoder::framed instead
[INFO] [stdout]   --> src/lib.rs:52:15
[INFO] [stdout]    |
[INFO] [stdout] 52 |         Ok(io.framed(SlackerCodec))
[INFO] [stdout]    |               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `tio::AsyncRead::framed`: Use tokio_codec::Decoder::framed instead
[INFO] [stdout]    --> src/lib.rs:115:15
[INFO] [stdout]     |
[INFO] [stdout] 115 |         Ok(io.framed(SlackerCodec))
[INFO] [stdout]     |               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 33 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.19s
[INFO] running `Command { std: "docker" "inspect" "9b2ab7fc985fc8dab1f06725af00fcf1baed14ef03eda0e9db865c077de745da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b2ab7fc985fc8dab1f06725af00fcf1baed14ef03eda0e9db865c077de745da", kill_on_drop: false }`
[INFO] [stdout] 9b2ab7fc985fc8dab1f06725af00fcf1baed14ef03eda0e9db865c077de745da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7cc97e18699501fe51ca1acd718c6c28db570fc15d9ec003494da8cbbf49677a
[INFO] running `Command { std: "docker" "start" "-a" "7cc97e18699501fe51ca1acd718c6c28db570fc15d9ec003494da8cbbf49677a", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling ucd-util v0.1.8
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling maplit v0.1.6
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |         try!(cur.write_u16::<BigEndian>(v.len() as u16));
[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/codecs.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |         try!(cur.write_u32::<BigEndian>(v.len() as u32));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |         try!(buf.write_u8(header.version));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |         try!(buf.write_i32::<BigEndian>(header.serial_id));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |         try!(buf.write_u8(header.packet_type));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:43:17
[INFO] [stdout]    |
[INFO] [stdout] 43 |                 try!(buf.write_u8(req.content_type));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:44:17
[INFO] [stdout]    |
[INFO] [stdout] 44 |                 try!(write_string(&mut buf, &req.fname, 2));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:45:17
[INFO] [stdout]    |
[INFO] [stdout] 45 |                 try!(write_bytes(&mut buf, &req.arguments, 4));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:48:17
[INFO] [stdout]    |
[INFO] [stdout] 48 |                 try!(buf.write_u8(resp.content_type));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:49:17
[INFO] [stdout]    |
[INFO] [stdout] 49 |                 try!(buf.write_u8(resp.result_code));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:50:17
[INFO] [stdout]    |
[INFO] [stdout] 50 |                 try!(write_bytes(&mut buf, &resp.data, 4));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:53:17
[INFO] [stdout]    |
[INFO] [stdout] 53 |                 try!(buf.write_u8(resp.result_code));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:57:17
[INFO] [stdout]    |
[INFO] [stdout] 57 |                 try!(buf.write_u8(req.inspect_type));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:58:17
[INFO] [stdout]    |
[INFO] [stdout] 58 |                 try!(write_bytes(&mut buf, &req.data, 2));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:61:17
[INFO] [stdout]    |
[INFO] [stdout] 61 |                 try!(write_bytes(&mut buf, &resp.data, 2));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:64:17
[INFO] [stdout]    |
[INFO] [stdout] 64 |                 try!(buf.write_i32::<BigEndian>(req.req_id));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/service.rs:16:25
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub type RpcFn<T> = Box<Fn(&Vec<T>) -> Receiver<T> + Send + Sync + 'static>;
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Vec<T>) -> Receiver<T> + Send + Sync + 'static`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/service.rs:17:29
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub type RpcFnSync<T> = Arc<Fn(&Vec<T>) -> T + Send + Sync + 'static>;
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Vec<T>) -> T + Send + Sync + 'static`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/service.rs:24:21
[INFO] [stdout]    |
[INFO] [stdout] 24 |     serializer: Arc<Serializer<Format = T>>,
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Serializer<Format = T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/service.rs:33:25
[INFO] [stdout]    |
[INFO] [stdout] 33 |         serializer: Arc<Serializer<Format = T>>,
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Serializer<Format = T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/service.rs:49:23
[INFO] [stdout]    |
[INFO] [stdout] 49 |     type Future = Box<Future<Item=Self::Response, Error=Self::Error>>;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=Self::Response, Error=Self::Error>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/service.rs:106:21
[INFO] [stdout]     |
[INFO] [stdout] 106 |     serializer: Arc<Serializer<Format = T>>,
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Serializer<Format = T>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/service.rs:117:25
[INFO] [stdout]     |
[INFO] [stdout] 117 |         serializer: Arc<Serializer<Format = T>>,
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Serializer<Format = T>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/service.rs:137:23
[INFO] [stdout]     |
[INFO] [stdout] 137 |     type Future = Box<Future<Item=Self::Response, Error=Self::Error>>;
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=Self::Response, Error=Self::Error>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/client.rs:34:14
[INFO] [stdout]    |
[INFO] [stdout] 34 |     ) -> Box<Future<Item = Client, Error = io::Error>> {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Client, Error = io::Error>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/client.rs:60:23
[INFO] [stdout]    |
[INFO] [stdout] 60 |     type Future = Box<Future<Item=Self::Response, Error=Self::Error>>;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=Self::Response, Error=Self::Error>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/client.rs:73:14
[INFO] [stdout]    |
[INFO] [stdout] 73 |     ) -> Box<Future<Item=Json, Error=io::Error>> {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=Json, Error=io::Error>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:117:31
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn ping(&self) -> Box<Future<Item=(), Error=io::Error>> {
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=(), Error=io::Error>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `tio::codec::Framed`: Moved to tokio-codec
[INFO] [stdout]   --> src/lib.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 | use tio::codec::Framed;
[INFO] [stdout]    |                 ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `tio::codec::Framed`: Moved to tokio-codec
[INFO] [stdout]   --> src/lib.rs:47:22
[INFO] [stdout]    |
[INFO] [stdout] 47 |     type Transport = Framed<TcpStream, SlackerCodec>;
[INFO] [stdout]    |                      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `tio::codec::Framed`: Moved to tokio-codec
[INFO] [stdout]    --> src/lib.rs:110:22
[INFO] [stdout]     |
[INFO] [stdout] 110 |     type Transport = Framed<TcpStream, SlackerCodec>;
[INFO] [stdout]     |                      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `tio::AsyncRead::framed`: Use tokio_codec::Decoder::framed instead
[INFO] [stdout]   --> src/lib.rs:52:15
[INFO] [stdout]    |
[INFO] [stdout] 52 |         Ok(io.framed(SlackerCodec))
[INFO] [stdout]    |               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `tio::AsyncRead::framed`: Use tokio_codec::Decoder::framed instead
[INFO] [stdout]    --> src/lib.rs:115:15
[INFO] [stdout]     |
[INFO] [stdout] 115 |         Ok(io.framed(SlackerCodec))
[INFO] [stdout]     |               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 33 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling env_logger v0.4.3
[INFO] [stderr]    Compiling slacker v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |         try!(cur.write_u16::<BigEndian>(v.len() as u16));
[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/codecs.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |         try!(cur.write_u32::<BigEndian>(v.len() as u32));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |         try!(buf.write_u8(header.version));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |         try!(buf.write_i32::<BigEndian>(header.serial_id));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |         try!(buf.write_u8(header.packet_type));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:43:17
[INFO] [stdout]    |
[INFO] [stdout] 43 |                 try!(buf.write_u8(req.content_type));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:44:17
[INFO] [stdout]    |
[INFO] [stdout] 44 |                 try!(write_string(&mut buf, &req.fname, 2));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:45:17
[INFO] [stdout]    |
[INFO] [stdout] 45 |                 try!(write_bytes(&mut buf, &req.arguments, 4));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:48:17
[INFO] [stdout]    |
[INFO] [stdout] 48 |                 try!(buf.write_u8(resp.content_type));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:49:17
[INFO] [stdout]    |
[INFO] [stdout] 49 |                 try!(buf.write_u8(resp.result_code));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:50:17
[INFO] [stdout]    |
[INFO] [stdout] 50 |                 try!(write_bytes(&mut buf, &resp.data, 4));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:53:17
[INFO] [stdout]    |
[INFO] [stdout] 53 |                 try!(buf.write_u8(resp.result_code));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:57:17
[INFO] [stdout]    |
[INFO] [stdout] 57 |                 try!(buf.write_u8(req.inspect_type));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:58:17
[INFO] [stdout]    |
[INFO] [stdout] 58 |                 try!(write_bytes(&mut buf, &req.data, 2));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:61:17
[INFO] [stdout]    |
[INFO] [stdout] 61 |                 try!(write_bytes(&mut buf, &resp.data, 2));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/codecs.rs:64:17
[INFO] [stdout]    |
[INFO] [stdout] 64 |                 try!(buf.write_i32::<BigEndian>(req.req_id));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/service.rs:16:25
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub type RpcFn<T> = Box<Fn(&Vec<T>) -> Receiver<T> + Send + Sync + 'static>;
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Vec<T>) -> Receiver<T> + Send + Sync + 'static`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/service.rs:17:29
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub type RpcFnSync<T> = Arc<Fn(&Vec<T>) -> T + Send + Sync + 'static>;
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Vec<T>) -> T + Send + Sync + 'static`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/service.rs:24:21
[INFO] [stdout]    |
[INFO] [stdout] 24 |     serializer: Arc<Serializer<Format = T>>,
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Serializer<Format = T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/service.rs:33:25
[INFO] [stdout]    |
[INFO] [stdout] 33 |         serializer: Arc<Serializer<Format = T>>,
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Serializer<Format = T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/service.rs:49:23
[INFO] [stdout]    |
[INFO] [stdout] 49 |     type Future = Box<Future<Item=Self::Response, Error=Self::Error>>;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=Self::Response, Error=Self::Error>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/service.rs:106:21
[INFO] [stdout]     |
[INFO] [stdout] 106 |     serializer: Arc<Serializer<Format = T>>,
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Serializer<Format = T>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/service.rs:117:25
[INFO] [stdout]     |
[INFO] [stdout] 117 |         serializer: Arc<Serializer<Format = T>>,
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Serializer<Format = T>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/service.rs:137:23
[INFO] [stdout]     |
[INFO] [stdout] 137 |     type Future = Box<Future<Item=Self::Response, Error=Self::Error>>;
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=Self::Response, Error=Self::Error>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/client.rs:34:14
[INFO] [stdout]    |
[INFO] [stdout] 34 |     ) -> Box<Future<Item = Client, Error = io::Error>> {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Client, Error = io::Error>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/client.rs:60:23
[INFO] [stdout]    |
[INFO] [stdout] 60 |     type Future = Box<Future<Item=Self::Response, Error=Self::Error>>;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=Self::Response, Error=Self::Error>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/client.rs:73:14
[INFO] [stdout]    |
[INFO] [stdout] 73 |     ) -> Box<Future<Item=Json, Error=io::Error>> {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=Json, Error=io::Error>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:117:31
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn ping(&self) -> Box<Future<Item=(), Error=io::Error>> {
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=(), Error=io::Error>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `tio::codec::Framed`: Moved to tokio-codec
[INFO] [stdout]   --> src/lib.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 | use tio::codec::Framed;
[INFO] [stdout]    |                 ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `tio::codec::Framed`: Moved to tokio-codec
[INFO] [stdout]   --> src/lib.rs:47:22
[INFO] [stdout]    |
[INFO] [stdout] 47 |     type Transport = Framed<TcpStream, SlackerCodec>;
[INFO] [stdout]    |                      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `tio::codec::Framed`: Moved to tokio-codec
[INFO] [stdout]    --> src/lib.rs:110:22
[INFO] [stdout]     |
[INFO] [stdout] 110 |     type Transport = Framed<TcpStream, SlackerCodec>;
[INFO] [stdout]     |                      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `tio::AsyncRead::framed`: Use tokio_codec::Decoder::framed instead
[INFO] [stdout]   --> src/lib.rs:52:15
[INFO] [stdout]    |
[INFO] [stdout] 52 |         Ok(io.framed(SlackerCodec))
[INFO] [stdout]    |               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `tio::AsyncRead::framed`: Use tokio_codec::Decoder::framed instead
[INFO] [stdout]    --> src/lib.rs:115:15
[INFO] [stdout]     |
[INFO] [stdout] 115 |         Ok(io.framed(SlackerCodec))
[INFO] [stdout]     |               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 33 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 20.49s
[INFO] running `Command { std: "docker" "inspect" "7cc97e18699501fe51ca1acd718c6c28db570fc15d9ec003494da8cbbf49677a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cc97e18699501fe51ca1acd718c6c28db570fc15d9ec003494da8cbbf49677a", kill_on_drop: false }`
[INFO] [stdout] 7cc97e18699501fe51ca1acd718c6c28db570fc15d9ec003494da8cbbf49677a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 739e236db5b80f272d8b12e488245d5cd673f78fe3f218b0393d830c731b3ea1
[INFO] running `Command { std: "docker" "start" "-a" "739e236db5b80f272d8b12e488245d5cd673f78fe3f218b0393d830c731b3ea1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/codecs.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |         try!(cur.write_u16::<BigEndian>(v.len() as u16));
[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/codecs.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |         try!(cur.write_u32::<BigEndian>(v.len() as u32));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/codecs.rs:37:9
[INFO] [stderr]    |
[INFO] [stderr] 37 |         try!(buf.write_u8(header.version));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/codecs.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |         try!(buf.write_i32::<BigEndian>(header.serial_id));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/codecs.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |         try!(buf.write_u8(header.packet_type));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/codecs.rs:43:17
[INFO] [stderr]    |
[INFO] [stderr] 43 |                 try!(buf.write_u8(req.content_type));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/codecs.rs:44:17
[INFO] [stderr]    |
[INFO] [stderr] 44 |                 try!(write_string(&mut buf, &req.fname, 2));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/codecs.rs:45:17
[INFO] [stderr]    |
[INFO] [stderr] 45 |                 try!(write_bytes(&mut buf, &req.arguments, 4));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/codecs.rs:48:17
[INFO] [stderr]    |
[INFO] [stderr] 48 |                 try!(buf.write_u8(resp.content_type));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/codecs.rs:49:17
[INFO] [stderr]    |
[INFO] [stderr] 49 |                 try!(buf.write_u8(resp.result_code));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/codecs.rs:50:17
[INFO] [stderr]    |
[INFO] [stderr] 50 |                 try!(write_bytes(&mut buf, &resp.data, 4));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/codecs.rs:53:17
[INFO] [stderr]    |
[INFO] [stderr] 53 |                 try!(buf.write_u8(resp.result_code));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/codecs.rs:57:17
[INFO] [stderr]    |
[INFO] [stderr] 57 |                 try!(buf.write_u8(req.inspect_type));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/codecs.rs:58:17
[INFO] [stderr]    |
[INFO] [stderr] 58 |                 try!(write_bytes(&mut buf, &req.data, 2));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/codecs.rs:61:17
[INFO] [stderr]    |
[INFO] [stderr] 61 |                 try!(write_bytes(&mut buf, &resp.data, 2));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/codecs.rs:64:17
[INFO] [stderr]    |
[INFO] [stderr] 64 |                 try!(buf.write_i32::<BigEndian>(req.req_id));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/service.rs:16:25
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub type RpcFn<T> = Box<Fn(&Vec<T>) -> Receiver<T> + Send + Sync + 'static>;
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Vec<T>) -> Receiver<T> + Send + Sync + 'static`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/service.rs:17:29
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub type RpcFnSync<T> = Arc<Fn(&Vec<T>) -> T + Send + Sync + 'static>;
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Vec<T>) -> T + Send + Sync + 'static`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/service.rs:24:21
[INFO] [stderr]    |
[INFO] [stderr] 24 |     serializer: Arc<Serializer<Format = T>>,
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Serializer<Format = T>`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/service.rs:33:25
[INFO] [stderr]    |
[INFO] [stderr] 33 |         serializer: Arc<Serializer<Format = T>>,
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Serializer<Format = T>`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/service.rs:49:23
[INFO] [stderr]    |
[INFO] [stderr] 49 |     type Future = Box<Future<Item=Self::Response, Error=Self::Error>>;
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=Self::Response, Error=Self::Error>`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/service.rs:106:21
[INFO] [stderr]     |
[INFO] [stderr] 106 |     serializer: Arc<Serializer<Format = T>>,
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Serializer<Format = T>`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/service.rs:117:25
[INFO] [stderr]     |
[INFO] [stderr] 117 |         serializer: Arc<Serializer<Format = T>>,
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Serializer<Format = T>`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/service.rs:137:23
[INFO] [stderr]     |
[INFO] [stderr] 137 |     type Future = Box<Future<Item=Self::Response, Error=Self::Error>>;
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=Self::Response, Error=Self::Error>`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/client.rs:34:14
[INFO] [stderr]    |
[INFO] [stderr] 34 |     ) -> Box<Future<Item = Client, Error = io::Error>> {
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Client, Error = io::Error>`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/client.rs:60:23
[INFO] [stderr]    |
[INFO] [stderr] 60 |     type Future = Box<Future<Item=Self::Response, Error=Self::Error>>;
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=Self::Response, Error=Self::Error>`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/client.rs:73:14
[INFO] [stderr]    |
[INFO] [stderr] 73 |     ) -> Box<Future<Item=Json, Error=io::Error>> {
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=Json, Error=io::Error>`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client.rs:117:31
[INFO] [stderr]     |
[INFO] [stderr] 117 |     pub fn ping(&self) -> Box<Future<Item=(), Error=io::Error>> {
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=(), Error=io::Error>`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated struct `tio::codec::Framed`: Moved to tokio-codec
[INFO] [stderr]   --> src/lib.rs:28:17
[INFO] [stderr]    |
[INFO] [stderr] 28 | use tio::codec::Framed;
[INFO] [stderr]    |                 ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated struct `tio::codec::Framed`: Moved to tokio-codec
[INFO] [stderr]   --> src/lib.rs:47:22
[INFO] [stderr]    |
[INFO] [stderr] 47 |     type Transport = Framed<TcpStream, SlackerCodec>;
[INFO] [stderr]    |                      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated struct `tio::codec::Framed`: Moved to tokio-codec
[INFO] [stderr]    --> src/lib.rs:110:22
[INFO] [stderr]     |
[INFO] [stderr] 110 |     type Transport = Framed<TcpStream, SlackerCodec>;
[INFO] [stderr]     |                      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `tio::AsyncRead::framed`: Use tokio_codec::Decoder::framed instead
[INFO] [stderr]   --> src/lib.rs:52:15
[INFO] [stderr]    |
[INFO] [stderr] 52 |         Ok(io.framed(SlackerCodec))
[INFO] [stderr]    |               ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `tio::AsyncRead::framed`: Use tokio_codec::Decoder::framed instead
[INFO] [stderr]    --> src/lib.rs:115:15
[INFO] [stderr]     |
[INFO] [stderr] 115 |         Ok(io.framed(SlackerCodec))
[INFO] [stderr]     |               ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `slacker` (lib) generated 33 warnings
[INFO] [stderr] warning: `slacker` (lib test) generated 33 warnings (33 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.23s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/slacker-08567324474479fd)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests slacker
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "739e236db5b80f272d8b12e488245d5cd673f78fe3f218b0393d830c731b3ea1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "739e236db5b80f272d8b12e488245d5cd673f78fe3f218b0393d830c731b3ea1", kill_on_drop: false }`
[INFO] [stdout] 739e236db5b80f272d8b12e488245d5cd673f78fe3f218b0393d830c731b3ea1