[INFO] fetching crate threema-client 0.1.0...
[INFO] documenting threema-client-0.1.0 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate threema-client 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate threema-client 0.1.0 on toolchain 1.75.0
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[INFO] started tweaking crates.io crate threema-client 0.1.0
[INFO] finished tweaking crates.io crate threema-client 0.1.0
[INFO] tweaked toml for crates.io crate threema-client 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate threema-client 0.1.0 already has a lockfile, it will not be regenerated
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[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/transport.rs:156:46
[INFO] [stdout]     |
[INFO] [stdout] 156 |             pltypes::INCOMING_MESSAGE_ACK => (Packet::AckDownload(Ack::from_buf(payload)?)),
[INFO] [stdout]     |                                              ^                                            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 156 -             pltypes::INCOMING_MESSAGE_ACK => (Packet::AckDownload(Ack::from_buf(payload)?)),
[INFO] [stdout] 156 +             pltypes::INCOMING_MESSAGE_ACK => Packet::AckDownload(Ack::from_buf(payload)?),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/transport.rs:157:46
[INFO] [stdout]     |
[INFO] [stdout] 157 |             pltypes::OUTGOING_MESSAGE_ACK => (Packet::AckUpload(Ack::from_buf(payload)?)),
[INFO] [stdout]     |                                              ^                                          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 157 -             pltypes::OUTGOING_MESSAGE_ACK => (Packet::AckUpload(Ack::from_buf(payload)?)),
[INFO] [stdout] 157 +             pltypes::OUTGOING_MESSAGE_ACK => Packet::AckUpload(Ack::from_buf(payload)?),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/transport.rs:158:42
[INFO] [stdout]     |
[INFO] [stdout] 158 |             pltypes::INCOMING_MESSAGE => (Packet::BoxedMessageDownload(BoxedMessage::from_slice(payload)?)),
[INFO] [stdout]     |                                          ^                                                                ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 158 -             pltypes::INCOMING_MESSAGE => (Packet::BoxedMessageDownload(BoxedMessage::from_slice(payload)?)),
[INFO] [stdout] 158 +             pltypes::INCOMING_MESSAGE => Packet::BoxedMessageDownload(BoxedMessage::from_slice(payload)?),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/transport.rs:159:42
[INFO] [stdout]     |
[INFO] [stdout] 159 |             pltypes::OUTGOING_MESSAGE => (Packet::BoxedMessageUpload(BoxedMessage::from_slice(payload)?)),
[INFO] [stdout]     |                                          ^                                                              ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 159 -             pltypes::OUTGOING_MESSAGE => (Packet::BoxedMessageUpload(BoxedMessage::from_slice(payload)?)),
[INFO] [stdout] 159 +             pltypes::OUTGOING_MESSAGE => Packet::BoxedMessageUpload(BoxedMessage::from_slice(payload)?),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/transport.rs:156:46
[INFO] [stdout]     |
[INFO] [stdout] 156 |             pltypes::INCOMING_MESSAGE_ACK => (Packet::AckDownload(Ack::from_buf(payload)?)),
[INFO] [stdout]     |                                              ^                                            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 156 -             pltypes::INCOMING_MESSAGE_ACK => (Packet::AckDownload(Ack::from_buf(payload)?)),
[INFO] [stdout] 156 +             pltypes::INCOMING_MESSAGE_ACK => Packet::AckDownload(Ack::from_buf(payload)?),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/transport.rs:160:36
[INFO] [stdout]     |
[INFO] [stdout] 160 |             pltypes::ECHO_REPLY => (Packet::EchoReply(u32::from_le_bytes(payload.try_into()?))),
[INFO] [stdout]     |                                    ^                                                          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 160 -             pltypes::ECHO_REPLY => (Packet::EchoReply(u32::from_le_bytes(payload.try_into()?))),
[INFO] [stdout] 160 +             pltypes::ECHO_REPLY => Packet::EchoReply(u32::from_le_bytes(payload.try_into()?)),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/transport.rs:161:38
[INFO] [stdout]     |
[INFO] [stdout] 161 |             pltypes::ECHO_REQUEST => (Packet::EchoRequest(u32::from_le_bytes(payload.try_into()?))),
[INFO] [stdout]     |                                      ^                                                            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 161 -             pltypes::ECHO_REQUEST => (Packet::EchoRequest(u32::from_le_bytes(payload.try_into()?))),
[INFO] [stdout] 161 +             pltypes::ECHO_REQUEST => Packet::EchoRequest(u32::from_le_bytes(payload.try_into()?)),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/transport.rs:157:46
[INFO] [stdout]     |
[INFO] [stdout] 157 |             pltypes::OUTGOING_MESSAGE_ACK => (Packet::AckUpload(Ack::from_buf(payload)?)),
[INFO] [stdout]     |                                              ^                                          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 157 -             pltypes::OUTGOING_MESSAGE_ACK => (Packet::AckUpload(Ack::from_buf(payload)?)),
[INFO] [stdout] 157 +             pltypes::OUTGOING_MESSAGE_ACK => Packet::AckUpload(Ack::from_buf(payload)?),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/transport.rs:162:45
[INFO] [stdout]     |
[INFO] [stdout] 162 |             pltypes::QUEUE_SEND_COMPLETE => (Packet::QueueSendComplete),
[INFO] [stdout]     |                                             ^                         ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 162 -             pltypes::QUEUE_SEND_COMPLETE => (Packet::QueueSendComplete),
[INFO] [stdout] 162 +             pltypes::QUEUE_SEND_COMPLETE => Packet::QueueSendComplete,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/transport.rs:163:31
[INFO] [stdout]     |
[INFO] [stdout] 163 |             pltypes::ALERT => (Packet::Alert(String::from_utf8_lossy(payload).to_string())),
[INFO] [stdout]     |                               ^                                                           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 163 -             pltypes::ALERT => (Packet::Alert(String::from_utf8_lossy(payload).to_string())),
[INFO] [stdout] 163 +             pltypes::ALERT => Packet::Alert(String::from_utf8_lossy(payload).to_string()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/transport.rs:158:42
[INFO] [stdout]     |
[INFO] [stdout] 158 |             pltypes::INCOMING_MESSAGE => (Packet::BoxedMessageDownload(BoxedMessage::from_slice(payload)?)),
[INFO] [stdout]     |                                          ^                                                                ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 158 -             pltypes::INCOMING_MESSAGE => (Packet::BoxedMessageDownload(BoxedMessage::from_slice(payload)?)),
[INFO] [stdout] 158 +             pltypes::INCOMING_MESSAGE => Packet::BoxedMessageDownload(BoxedMessage::from_slice(payload)?),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/transport.rs:170:25
[INFO] [stdout]     |
[INFO] [stdout] 170 |             _unknown => (Packet::Raw(f))
[INFO] [stdout]     |                         ^              ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 170 -             _unknown => (Packet::Raw(f))
[INFO] [stdout] 170 +             _unknown => Packet::Raw(f)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/transport.rs:159:42
[INFO] [stdout]     |
[INFO] [stdout] 159 |             pltypes::OUTGOING_MESSAGE => (Packet::BoxedMessageUpload(BoxedMessage::from_slice(payload)?)),
[INFO] [stdout]     |                                          ^                                                              ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 159 -             pltypes::OUTGOING_MESSAGE => (Packet::BoxedMessageUpload(BoxedMessage::from_slice(payload)?)),
[INFO] [stdout] 159 +             pltypes::OUTGOING_MESSAGE => Packet::BoxedMessageUpload(BoxedMessage::from_slice(payload)?),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/transport.rs:160:36
[INFO] [stdout]     |
[INFO] [stdout] 160 |             pltypes::ECHO_REPLY => (Packet::EchoReply(u32::from_le_bytes(payload.try_into()?))),
[INFO] [stdout]     |                                    ^                                                          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 160 -             pltypes::ECHO_REPLY => (Packet::EchoReply(u32::from_le_bytes(payload.try_into()?))),
[INFO] [stdout] 160 +             pltypes::ECHO_REPLY => Packet::EchoReply(u32::from_le_bytes(payload.try_into()?)),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/transport.rs:161:38
[INFO] [stdout]     |
[INFO] [stdout] 161 |             pltypes::ECHO_REQUEST => (Packet::EchoRequest(u32::from_le_bytes(payload.try_into()?))),
[INFO] [stdout]     |                                      ^                                                            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 161 -             pltypes::ECHO_REQUEST => (Packet::EchoRequest(u32::from_le_bytes(payload.try_into()?))),
[INFO] [stdout] 161 +             pltypes::ECHO_REQUEST => Packet::EchoRequest(u32::from_le_bytes(payload.try_into()?)),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/transport.rs:162:45
[INFO] [stdout]     |
[INFO] [stdout] 162 |             pltypes::QUEUE_SEND_COMPLETE => (Packet::QueueSendComplete),
[INFO] [stdout]     |                                             ^                         ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 162 -             pltypes::QUEUE_SEND_COMPLETE => (Packet::QueueSendComplete),
[INFO] [stdout] 162 +             pltypes::QUEUE_SEND_COMPLETE => Packet::QueueSendComplete,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/transport.rs:163:31
[INFO] [stdout]     |
[INFO] [stdout] 163 |             pltypes::ALERT => (Packet::Alert(String::from_utf8_lossy(payload).to_string())),
[INFO] [stdout]     |                               ^                                                           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 163 -             pltypes::ALERT => (Packet::Alert(String::from_utf8_lossy(payload).to_string())),
[INFO] [stdout] 163 +             pltypes::ALERT => Packet::Alert(String::from_utf8_lossy(payload).to_string()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/transport.rs:170:25
[INFO] [stdout]     |
[INFO] [stdout] 170 |             _unknown => (Packet::Raw(f))
[INFO] [stdout]     |                         ^              ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 170 -             _unknown => (Packet::Raw(f))
[INFO] [stdout] 170 +             _unknown => Packet::Raw(f)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `THUMBNAIL_NONCE` is never used
[INFO] [stdout]   --> src/blob_api.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | const THUMBNAIL_NONCE: [u8;24] = [0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0...
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.87s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] [stderr]    Generated /opt/rustwide/target/doc/threema_client/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/load_idbackup/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/load_safe/index.html
[INFO] running `Command { std: "docker" "inspect" "588ec970aea7d61fcee6bc1691fc02c955f137d414aaa03a713f341d44a7e2e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "588ec970aea7d61fcee6bc1691fc02c955f137d414aaa03a713f341d44a7e2e5", kill_on_drop: false }`
[INFO] [stdout] 588ec970aea7d61fcee6bc1691fc02c955f137d414aaa03a713f341d44a7e2e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=1" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "rustdoc" "--lib" "-Zrustdoc-map" "-Z" "unstable-options" "--config" "build.rustdocflags=[\"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8566236d26cdb141cf6bc00a6383e83a79608c191934ee807cc3fb89f201b509
[INFO] running `Command { std: "docker" "start" "-a" "8566236d26cdb141cf6bc00a6383e83a79608c191934ee807cc3fb89f201b509", kill_on_drop: false }`
[INFO] [stderr]  Documenting threema-client v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/transport.rs:156:46
[INFO] [stdout]     |
[INFO] [stdout] 156 |             pltypes::INCOMING_MESSAGE_ACK => (Packet::AckDownload(Ack::from_buf(payload)?)),
[INFO] [stdout]     |                                              ^                                            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 156 -             pltypes::INCOMING_MESSAGE_ACK => (Packet::AckDownload(Ack::from_buf(payload)?)),
[INFO] [stdout] 156 +             pltypes::INCOMING_MESSAGE_ACK => Packet::AckDownload(Ack::from_buf(payload)?),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/transport.rs:157:46
[INFO] [stdout]     |
[INFO] [stdout] 157 |             pltypes::OUTGOING_MESSAGE_ACK => (Packet::AckUpload(Ack::from_buf(payload)?)),
[INFO] [stdout]     |                                              ^                                          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 157 -             pltypes::OUTGOING_MESSAGE_ACK => (Packet::AckUpload(Ack::from_buf(payload)?)),
[INFO] [stdout] 157 +             pltypes::OUTGOING_MESSAGE_ACK => Packet::AckUpload(Ack::from_buf(payload)?),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/transport.rs:158:42
[INFO] [stdout]     |
[INFO] [stdout] 158 |             pltypes::INCOMING_MESSAGE => (Packet::BoxedMessageDownload(BoxedMessage::from_slice(payload)?)),
[INFO] [stdout]     |                                          ^                                                                ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 158 -             pltypes::INCOMING_MESSAGE => (Packet::BoxedMessageDownload(BoxedMessage::from_slice(payload)?)),
[INFO] [stdout] 158 +             pltypes::INCOMING_MESSAGE => Packet::BoxedMessageDownload(BoxedMessage::from_slice(payload)?),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/transport.rs:159:42
[INFO] [stdout]     |
[INFO] [stdout] 159 |             pltypes::OUTGOING_MESSAGE => (Packet::BoxedMessageUpload(BoxedMessage::from_slice(payload)?)),
[INFO] [stdout]     |                                          ^                                                              ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 159 -             pltypes::OUTGOING_MESSAGE => (Packet::BoxedMessageUpload(BoxedMessage::from_slice(payload)?)),
[INFO] [stdout] 159 +             pltypes::OUTGOING_MESSAGE => Packet::BoxedMessageUpload(BoxedMessage::from_slice(payload)?),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/transport.rs:160:36
[INFO] [stdout]     |
[INFO] [stdout] 160 |             pltypes::ECHO_REPLY => (Packet::EchoReply(u32::from_le_bytes(payload.try_into()?))),
[INFO] [stdout]     |                                    ^                                                          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 160 -             pltypes::ECHO_REPLY => (Packet::EchoReply(u32::from_le_bytes(payload.try_into()?))),
[INFO] [stdout] 160 +             pltypes::ECHO_REPLY => Packet::EchoReply(u32::from_le_bytes(payload.try_into()?)),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/transport.rs:161:38
[INFO] [stdout]     |
[INFO] [stdout] 161 |             pltypes::ECHO_REQUEST => (Packet::EchoRequest(u32::from_le_bytes(payload.try_into()?))),
[INFO] [stdout]     |                                      ^                                                            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 161 -             pltypes::ECHO_REQUEST => (Packet::EchoRequest(u32::from_le_bytes(payload.try_into()?))),
[INFO] [stdout] 161 +             pltypes::ECHO_REQUEST => Packet::EchoRequest(u32::from_le_bytes(payload.try_into()?)),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/transport.rs:162:45
[INFO] [stdout]     |
[INFO] [stdout] 162 |             pltypes::QUEUE_SEND_COMPLETE => (Packet::QueueSendComplete),
[INFO] [stdout]     |                                             ^                         ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 162 -             pltypes::QUEUE_SEND_COMPLETE => (Packet::QueueSendComplete),
[INFO] [stdout] 162 +             pltypes::QUEUE_SEND_COMPLETE => Packet::QueueSendComplete,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/transport.rs:163:31
[INFO] [stdout]     |
[INFO] [stdout] 163 |             pltypes::ALERT => (Packet::Alert(String::from_utf8_lossy(payload).to_string())),
[INFO] [stdout]     |                               ^                                                           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 163 -             pltypes::ALERT => (Packet::Alert(String::from_utf8_lossy(payload).to_string())),
[INFO] [stdout] 163 +             pltypes::ALERT => Packet::Alert(String::from_utf8_lossy(payload).to_string()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/transport.rs:170:25
[INFO] [stdout]     |
[INFO] [stdout] 170 |             _unknown => (Packet::Raw(f))
[INFO] [stdout]     |                         ^              ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 170 -             _unknown => (Packet::Raw(f))
[INFO] [stdout] 170 +             _unknown => Packet::Raw(f)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] [stderr]    Generated /opt/rustwide/target/doc/threema_client/index.html
[INFO] running `Command { std: "docker" "inspect" "8566236d26cdb141cf6bc00a6383e83a79608c191934ee807cc3fb89f201b509", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8566236d26cdb141cf6bc00a6383e83a79608c191934ee807cc3fb89f201b509", kill_on_drop: false }`
[INFO] [stdout] 8566236d26cdb141cf6bc00a6383e83a79608c191934ee807cc3fb89f201b509