[INFO] updating cached repository iEAmi/meu-broker [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/iEAmi/meu-broker [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/iEAmi/meu-broker" "work/ex/beta-1.38-1/sources/1.37.0/gh/iEAmi/meu-broker"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/iEAmi/meu-broker'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/iEAmi/meu-broker" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/iEAmi/meu-broker"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/iEAmi/meu-broker'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 034ea84ddd2cc74b98d4f72e704e77a29b5f98ed [INFO] sha for GitHub repo iEAmi/meu-broker: 034ea84ddd2cc74b98d4f72e704e77a29b5f98ed [INFO] validating manifest of iEAmi/meu-broker on toolchain 1.37.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of iEAmi/meu-broker on toolchain beta-2019-08-13 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing iEAmi/meu-broker [INFO] finished frobbing iEAmi/meu-broker [INFO] frobbed toml for iEAmi/meu-broker written to work/ex/beta-1.38-1/sources/1.37.0/gh/iEAmi/meu-broker/Cargo.toml [INFO] started frobbing iEAmi/meu-broker [INFO] finished frobbing iEAmi/meu-broker [INFO] frobbed toml for iEAmi/meu-broker written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/iEAmi/meu-broker/Cargo.toml [INFO] crate iEAmi/meu-broker already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing iEAmi/meu-broker against 1.37.0 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/iEAmi/meu-broker:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"` [INFO] [stdout] 373c889eee89287f5549f06a9d449b7c28a1fbbd57d5b57240cf8ee9c195d0d7 [INFO] running `"docker" "start" "-a" "373c889eee89287f5549f06a9d449b7c28a1fbbd57d5b57240cf8ee9c195d0d7"` [INFO] [stderr] Compiling syn v0.15.32 [INFO] [stderr] Compiling hashbrown v0.2.2 [INFO] [stderr] Compiling socket2 v0.3.8 [INFO] [stderr] Compiling hostname v0.1.5 [INFO] [stderr] Compiling threadpool v1.7.1 [INFO] [stderr] Compiling tokio-threadpool v0.1.14 [INFO] [stderr] Compiling tokio-reactor v0.1.9 [INFO] [stderr] Compiling resolv-conf v0.6.2 [INFO] [stderr] Compiling tokio-tcp v0.1.3 [INFO] [stderr] Compiling tokio-udp v0.1.3 [INFO] [stderr] Compiling tokio-uds v0.2.5 [INFO] [stderr] Compiling tokio-fs v0.1.6 [INFO] [stderr] Compiling tokio v0.1.19 [INFO] [stderr] Compiling synstructure v0.10.1 [INFO] [stderr] Compiling enum-as-inner v0.2.1 [INFO] [stderr] Compiling derive_more v0.14.0 [INFO] [stderr] Compiling actix_derive v0.4.0 [INFO] [stderr] Compiling failure_derive v0.1.5 [INFO] [stderr] Compiling failure v0.1.5 [INFO] [stderr] Compiling actix-threadpool v0.1.0 [INFO] [stderr] Compiling trust-dns-proto v0.7.3 [INFO] [stderr] Compiling actix-rt v0.2.2 [INFO] [stderr] Compiling trust-dns-resolver v0.11.0 [INFO] [stderr] Compiling actix v0.8.1 [INFO] [stderr] Compiling meu-broker v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `actix::Arbiter` [INFO] [stderr] --> src/acceptor.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use actix::Arbiter; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `actix::Handler` [INFO] [stderr] --> src/acceptor.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use actix::Handler; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::cell::Cell` [INFO] [stderr] --> src/broker.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::cell::Cell; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::cell::RefCell` [INFO] [stderr] --> src/broker.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use std::cell::RefCell; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::rc::Rc` [INFO] [stderr] --> src/broker.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use std::rc::Rc; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `bytes::BytesMut` [INFO] [stderr] --> src/client.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use bytes::BytesMut; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Async`, `Poll`, `Stream` [INFO] [stderr] --> src/client.rs:7:15 [INFO] [stderr] | [INFO] [stderr] 7 | use futures::{Async, Poll, Stream}; [INFO] [stderr] | ^^^^^ ^^^^ ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `tokio::codec::FramedRead` [INFO] [stderr] --> src/client.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | use tokio::codec::FramedRead; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `AsyncRead`, `ReadHalf` [INFO] [stderr] --> src/client.rs:9:17 [INFO] [stderr] | [INFO] [stderr] 9 | use tokio::io::{AsyncRead, ReadHalf, WriteHalf}; [INFO] [stderr] | ^^^^^^^^^ ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant `UTF_8` should have an upper camel case name [INFO] [stderr] --> src/error.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | UTF_8(Utf8Error) [INFO] [stderr] | ^^^^^ help: convert the identifier to upper camel case: `Utf8` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_camel_case_types)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `crate::codec::Flag::HeartBeat` [INFO] [stderr] --> src/codec.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use crate::codec::Flag::HeartBeat; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Async`, `Stream` [INFO] [stderr] --> src/message.rs:3:15 [INFO] [stderr] | [INFO] [stderr] 3 | use futures::{Async, Stream}; [INFO] [stderr] | ^^^^^ ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `crate::error` [INFO] [stderr] --> src/message.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use crate::error; [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `r` [INFO] [stderr] --> src/main.rs:39:13 [INFO] [stderr] | [INFO] [stderr] 39 | let r = Acceptor::create(move |ctx| { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_r` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ctx` [INFO] [stderr] --> src/acceptor.rs:36:27 [INFO] [stderr] | [INFO] [stderr] 36 | fn started(&mut self, ctx: &mut Self::Context) { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_ctx` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `rr` [INFO] [stderr] --> src/acceptor.rs:67:17 [INFO] [stderr] | [INFO] [stderr] 67 | let rr = Client::create( |ctx| { [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_rr` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ctx` [INFO] [stderr] --> src/acceptor.rs:62:47 [INFO] [stderr] | [INFO] [stderr] 62 | fn handle(&mut self, item: TcpConnection, ctx: &mut Self::Context) { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_ctx` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ctx` [INFO] [stderr] --> src/broker.rs:33:27 [INFO] [stderr] | [INFO] [stderr] 33 | fn started(&mut self, ctx: &mut Self::Context) { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_ctx` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ctx` [INFO] [stderr] --> src/broker.rs:41:54 [INFO] [stderr] | [INFO] [stderr] 41 | fn handle(&mut self, msg: message::InputMessage, ctx: &mut Self::Context) -> Self::Result { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_ctx` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ctx` [INFO] [stderr] --> src/broker.rs:50:58 [INFO] [stderr] | [INFO] [stderr] 50 | fn handle(&mut self, msg: message::SubscribeMessage, ctx: &mut Self::Context) -> Self::Result { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_ctx` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ctx` [INFO] [stderr] --> src/client.rs:40:27 [INFO] [stderr] | [INFO] [stderr] 40 | fn started(&mut self, ctx: &mut Self::Context) { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_ctx` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ctx` [INFO] [stderr] --> src/client.rs:87:46 [INFO] [stderr] | [INFO] [stderr] 87 | fn handle(&mut self, msg: OutputMessage, ctx: &mut Self::Context) -> Self::Result { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_ctx` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/codec.rs:178:13 [INFO] [stderr] | [INFO] [stderr] 178 | let mut len = src.split_to(8); [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Subscribe` [INFO] [stderr] --> src/codec.rs:22:5 [INFO] [stderr] | [INFO] [stderr] 22 | Subscribe, [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Disconnect` [INFO] [stderr] --> src/codec.rs:23:5 [INFO] [stderr] | [INFO] [stderr] 23 | Disconnect, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Message` [INFO] [stderr] --> src/codec.rs:24:5 [INFO] [stderr] | [INFO] [stderr] 24 | Message, [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 24s [INFO] running `"docker" "inspect" "373c889eee89287f5549f06a9d449b7c28a1fbbd57d5b57240cf8ee9c195d0d7"` [INFO] running `"docker" "rm" "-f" "373c889eee89287f5549f06a9d449b7c28a1fbbd57d5b57240cf8ee9c195d0d7"` [INFO] [stdout] 373c889eee89287f5549f06a9d449b7c28a1fbbd57d5b57240cf8ee9c195d0d7 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/iEAmi/meu-broker:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen" "--no-run"` [INFO] [stdout] e5d4066f9d9c053d2a497f43cf0d48e4a4aadd593202fd0a4be4ea8b4e8745fc [INFO] running `"docker" "start" "-a" "e5d4066f9d9c053d2a497f43cf0d48e4a4aadd593202fd0a4be4ea8b4e8745fc"` [INFO] [stderr] Compiling meu-broker v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `actix::Arbiter` [INFO] [stderr] --> src/acceptor.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use actix::Arbiter; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `actix::Handler` [INFO] [stderr] --> src/acceptor.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use actix::Handler; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::cell::Cell` [INFO] [stderr] --> src/broker.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::cell::Cell; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::cell::RefCell` [INFO] [stderr] --> src/broker.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use std::cell::RefCell; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::rc::Rc` [INFO] [stderr] --> src/broker.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use std::rc::Rc; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `bytes::BytesMut` [INFO] [stderr] --> src/client.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use bytes::BytesMut; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Async`, `Poll`, `Stream` [INFO] [stderr] --> src/client.rs:7:15 [INFO] [stderr] | [INFO] [stderr] 7 | use futures::{Async, Poll, Stream}; [INFO] [stderr] | ^^^^^ ^^^^ ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `tokio::codec::FramedRead` [INFO] [stderr] --> src/client.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | use tokio::codec::FramedRead; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `AsyncRead`, `ReadHalf` [INFO] [stderr] --> src/client.rs:9:17 [INFO] [stderr] | [INFO] [stderr] 9 | use tokio::io::{AsyncRead, ReadHalf, WriteHalf}; [INFO] [stderr] | ^^^^^^^^^ ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant `UTF_8` should have an upper camel case name [INFO] [stderr] --> src/error.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | UTF_8(Utf8Error) [INFO] [stderr] | ^^^^^ help: convert the identifier to upper camel case: `Utf8` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_camel_case_types)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `crate::codec::Flag::HeartBeat` [INFO] [stderr] --> src/codec.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use crate::codec::Flag::HeartBeat; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Async`, `Stream` [INFO] [stderr] --> src/message.rs:3:15 [INFO] [stderr] | [INFO] [stderr] 3 | use futures::{Async, Stream}; [INFO] [stderr] | ^^^^^ ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `crate::error` [INFO] [stderr] --> src/message.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use crate::error; [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `r` [INFO] [stderr] --> src/main.rs:39:13 [INFO] [stderr] | [INFO] [stderr] 39 | let r = Acceptor::create(move |ctx| { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_r` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ctx` [INFO] [stderr] --> src/acceptor.rs:36:27 [INFO] [stderr] | [INFO] [stderr] 36 | fn started(&mut self, ctx: &mut Self::Context) { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_ctx` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `rr` [INFO] [stderr] --> src/acceptor.rs:67:17 [INFO] [stderr] | [INFO] [stderr] 67 | let rr = Client::create( |ctx| { [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_rr` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ctx` [INFO] [stderr] --> src/acceptor.rs:62:47 [INFO] [stderr] | [INFO] [stderr] 62 | fn handle(&mut self, item: TcpConnection, ctx: &mut Self::Context) { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_ctx` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ctx` [INFO] [stderr] --> src/broker.rs:33:27 [INFO] [stderr] | [INFO] [stderr] 33 | fn started(&mut self, ctx: &mut Self::Context) { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_ctx` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ctx` [INFO] [stderr] --> src/broker.rs:41:54 [INFO] [stderr] | [INFO] [stderr] 41 | fn handle(&mut self, msg: message::InputMessage, ctx: &mut Self::Context) -> Self::Result { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_ctx` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ctx` [INFO] [stderr] --> src/broker.rs:50:58 [INFO] [stderr] | [INFO] [stderr] 50 | fn handle(&mut self, msg: message::SubscribeMessage, ctx: &mut Self::Context) -> Self::Result { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_ctx` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ctx` [INFO] [stderr] --> src/client.rs:40:27 [INFO] [stderr] | [INFO] [stderr] 40 | fn started(&mut self, ctx: &mut Self::Context) { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_ctx` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ctx` [INFO] [stderr] --> src/client.rs:87:46 [INFO] [stderr] | [INFO] [stderr] 87 | fn handle(&mut self, msg: OutputMessage, ctx: &mut Self::Context) -> Self::Result { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_ctx` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/codec.rs:178:13 [INFO] [stderr] | [INFO] [stderr] 178 | let mut len = src.split_to(8); [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Subscribe` [INFO] [stderr] --> src/codec.rs:22:5 [INFO] [stderr] | [INFO] [stderr] 22 | Subscribe, [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Disconnect` [INFO] [stderr] --> src/codec.rs:23:5 [INFO] [stderr] | [INFO] [stderr] 23 | Disconnect, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Message` [INFO] [stderr] --> src/codec.rs:24:5 [INFO] [stderr] | [INFO] [stderr] 24 | Message, [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.96s [INFO] running `"docker" "inspect" "e5d4066f9d9c053d2a497f43cf0d48e4a4aadd593202fd0a4be4ea8b4e8745fc"` [INFO] running `"docker" "rm" "-f" "e5d4066f9d9c053d2a497f43cf0d48e4a4aadd593202fd0a4be4ea8b4e8745fc"` [INFO] [stdout] e5d4066f9d9c053d2a497f43cf0d48e4a4aadd593202fd0a4be4ea8b4e8745fc [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/iEAmi/meu-broker:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen"` [INFO] [stdout] 3416ec6bed34ca1e292c09369149a58bc47eba5d7f1e00ff588fcfaa983f082e [INFO] running `"docker" "start" "-a" "3416ec6bed34ca1e292c09369149a58bc47eba5d7f1e00ff588fcfaa983f082e"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.22s [INFO] [stderr] Running /opt/crater/target/debug/deps/meu_broker-1124dc037568cadc [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "3416ec6bed34ca1e292c09369149a58bc47eba5d7f1e00ff588fcfaa983f082e"` [INFO] running `"docker" "rm" "-f" "3416ec6bed34ca1e292c09369149a58bc47eba5d7f1e00ff588fcfaa983f082e"` [INFO] [stdout] 3416ec6bed34ca1e292c09369149a58bc47eba5d7f1e00ff588fcfaa983f082e