[INFO] fetching crate post-sockets 0.1.0...
[INFO] checking post-sockets-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate post-sockets 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate post-sockets 0.1.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate post-sockets 0.1.0
[INFO] finished tweaking crates.io crate post-sockets 0.1.0
[INFO] tweaked toml for crates.io crate post-sockets 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 5 packages
[INFO] [stderr]       Adding bytes v0.4.12 (latest: v1.6.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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_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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fb709de84b95d9503767fc8b5714655fdcb1e4cb7cac3d11b64362aac213ce2d
[INFO] running `Command { std: "docker" "start" "-a" "fb709de84b95d9503767fc8b5714655fdcb1e4cb7cac3d11b64362aac213ce2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb709de84b95d9503767fc8b5714655fdcb1e4cb7cac3d11b64362aac213ce2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb709de84b95d9503767fc8b5714655fdcb1e4cb7cac3d11b64362aac213ce2d", kill_on_drop: false }`
[INFO] [stdout] fb709de84b95d9503767fc8b5714655fdcb1e4cb7cac3d11b64362aac213ce2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c71e9870190ebdbf5c79f4d4ded998b102a6f88af1b856d54960f64df599183f
[INFO] running `Command { std: "docker" "start" "-a" "c71e9870190ebdbf5c79f4d4ded998b102a6f88af1b856d54960f64df599183f", kill_on_drop: false }`
[INFO] [stderr]     Checking post-sockets v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Ord` is imported redundantly
[INFO] [stdout]   --> src/message.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | use std::cmp::Ord;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:124:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Ord` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]   --> src/carrier.rs:34:24
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn send(&mut self, msg : &P::M) {
[INFO] [stdout]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/protocols/quic/mod.rs:71:30
[INFO] [stdout]    |
[INFO] [stdout] 71 |     fn decode_message(&self, data : &[u8]) -> Option<Self::M> {
[INFO] [stdout]    |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mesg`
[INFO] [stdout]   --> src/protocols/quic/mod.rs:75:30
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn encode_message(&self, mesg : &Self::M) -> &[u8] {
[INFO] [stdout]    |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_mesg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_complete`, `is_immediate`, `is_idempotent`, `priority`, `deadline`, and `depends_on` are never used
[INFO] [stdout]   --> src/message.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub trait Message {
[INFO] [stdout]    |           ------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 33 |     fn is_complete(&self) -> bool;
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 34 |     fn is_immediate(&self) -> bool;
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 35 |     fn is_idempotent(&self) -> bool;
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 36 |     fn priority(&self) -> Self::Priority;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 37 |     fn deadline(&self) -> Option<Self::Deadline>;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 38 |     fn depends_on(&self) -> Vec<&Self>;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Carrier` is never constructed
[INFO] [stdout]   --> src/carrier.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct Carrier<P : Protocol> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `send` is never used
[INFO] [stdout]   --> src/carrier.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl<P : Protocol> Carrier<P> {
[INFO] [stdout]    | ----------------------------- method in this implementation
[INFO] [stdout] 34 |     fn send(&mut self, msg : &P::M) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Protocol` is never used
[INFO] [stdout]   --> src/protocol.rs:29:11
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub trait Protocol {
[INFO] [stdout]    |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Quic` is never constructed
[INFO] [stdout]   --> src/protocols/quic/mod.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 65 | struct Quic {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Ord` is imported redundantly
[INFO] [stdout]   --> src/message.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | use std::cmp::Ord;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:124:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Ord` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]   --> src/carrier.rs:34:24
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn send(&mut self, msg : &P::M) {
[INFO] [stdout]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/protocols/quic/mod.rs:71:30
[INFO] [stdout]    |
[INFO] [stdout] 71 |     fn decode_message(&self, data : &[u8]) -> Option<Self::M> {
[INFO] [stdout]    |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mesg`
[INFO] [stdout]   --> src/protocols/quic/mod.rs:75:30
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn encode_message(&self, mesg : &Self::M) -> &[u8] {
[INFO] [stdout]    |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_mesg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_complete`, `is_immediate`, `is_idempotent`, `priority`, `deadline`, and `depends_on` are never used
[INFO] [stdout]   --> src/message.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub trait Message {
[INFO] [stdout]    |           ------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 33 |     fn is_complete(&self) -> bool;
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 34 |     fn is_immediate(&self) -> bool;
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 35 |     fn is_idempotent(&self) -> bool;
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 36 |     fn priority(&self) -> Self::Priority;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 37 |     fn deadline(&self) -> Option<Self::Deadline>;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 38 |     fn depends_on(&self) -> Vec<&Self>;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Carrier` is never constructed
[INFO] [stdout]   --> src/carrier.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct Carrier<P : Protocol> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `send` is never used
[INFO] [stdout]   --> src/carrier.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl<P : Protocol> Carrier<P> {
[INFO] [stdout]    | ----------------------------- method in this implementation
[INFO] [stdout] 34 |     fn send(&mut self, msg : &P::M) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Protocol` is never used
[INFO] [stdout]   --> src/protocol.rs:29:11
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub trait Protocol {
[INFO] [stdout]    |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Quic` is never constructed
[INFO] [stdout]   --> src/protocols/quic/mod.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 65 | struct Quic {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "c71e9870190ebdbf5c79f4d4ded998b102a6f88af1b856d54960f64df599183f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c71e9870190ebdbf5c79f4d4ded998b102a6f88af1b856d54960f64df599183f", kill_on_drop: false }`
[INFO] [stdout] c71e9870190ebdbf5c79f4d4ded998b102a6f88af1b856d54960f64df599183f
[INFO] checking post-sockets-0.1.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate post-sockets 0.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate post-sockets 0.1.0 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate post-sockets 0.1.0
[INFO] finished tweaking crates.io crate post-sockets 0.1.0
[INFO] tweaked toml for crates.io crate post-sockets 0.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6c54a79c93690591ec8c14376bb67cc8814b698d17254634d777eb79337d9007
[INFO] running `Command { std: "docker" "start" "-a" "6c54a79c93690591ec8c14376bb67cc8814b698d17254634d777eb79337d9007", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c54a79c93690591ec8c14376bb67cc8814b698d17254634d777eb79337d9007", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c54a79c93690591ec8c14376bb67cc8814b698d17254634d777eb79337d9007", kill_on_drop: false }`
[INFO] [stdout] 6c54a79c93690591ec8c14376bb67cc8814b698d17254634d777eb79337d9007
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 91d4e3e44a4b49fb5b5a7f1795632cbba847e3eb7eb4df96479d95a40c9daa8e
[INFO] running `Command { std: "docker" "start" "-a" "91d4e3e44a4b49fb5b5a7f1795632cbba847e3eb7eb4df96479d95a40c9daa8e", kill_on_drop: false }`
[INFO] [stderr]     Checking post-sockets v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Ord` is imported redundantly
[INFO] [stdout]   --> src/message.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | use std::cmp::Ord;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:124:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Ord` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Ord` is imported redundantly
[INFO] [stdout]   --> src/message.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | use std::cmp::Ord;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:124:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Ord` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]   --> src/carrier.rs:34:24
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn send(&mut self, msg : &P::M) {
[INFO] [stdout]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/protocols/quic/mod.rs:71:30
[INFO] [stdout]    |
[INFO] [stdout] 71 |     fn decode_message(&self, data : &[u8]) -> Option<Self::M> {
[INFO] [stdout]    |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mesg`
[INFO] [stdout]   --> src/protocols/quic/mod.rs:75:30
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn encode_message(&self, mesg : &Self::M) -> &[u8] {
[INFO] [stdout]    |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_mesg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_complete`, `is_immediate`, `is_idempotent`, `priority`, `deadline`, and `depends_on` are never used
[INFO] [stdout]   --> src/message.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub trait Message {
[INFO] [stdout]    |           ------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 33 |     fn is_complete(&self) -> bool;
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 34 |     fn is_immediate(&self) -> bool;
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 35 |     fn is_idempotent(&self) -> bool;
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 36 |     fn priority(&self) -> Self::Priority;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 37 |     fn deadline(&self) -> Option<Self::Deadline>;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 38 |     fn depends_on(&self) -> Vec<&Self>;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Carrier` is never constructed
[INFO] [stdout]   --> src/carrier.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct Carrier<P : Protocol> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `send` is never used
[INFO] [stdout]   --> src/carrier.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl<P : Protocol> Carrier<P> {
[INFO] [stdout]    | ----------------------------- method in this implementation
[INFO] [stdout] 34 |     fn send(&mut self, msg : &P::M) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Protocol` is never used
[INFO] [stdout]   --> src/protocol.rs:29:11
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub trait Protocol {
[INFO] [stdout]    |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Quic` is never constructed
[INFO] [stdout]   --> src/protocols/quic/mod.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 65 | struct Quic {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]   --> src/carrier.rs:34:24
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn send(&mut self, msg : &P::M) {
[INFO] [stdout]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/protocols/quic/mod.rs:71:30
[INFO] [stdout]    |
[INFO] [stdout] 71 |     fn decode_message(&self, data : &[u8]) -> Option<Self::M> {
[INFO] [stdout]    |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mesg`
[INFO] [stdout]   --> src/protocols/quic/mod.rs:75:30
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn encode_message(&self, mesg : &Self::M) -> &[u8] {
[INFO] [stdout]    |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_mesg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_complete`, `is_immediate`, `is_idempotent`, `priority`, `deadline`, and `depends_on` are never used
[INFO] [stdout]   --> src/message.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub trait Message {
[INFO] [stdout]    |           ------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 33 |     fn is_complete(&self) -> bool;
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 34 |     fn is_immediate(&self) -> bool;
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 35 |     fn is_idempotent(&self) -> bool;
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 36 |     fn priority(&self) -> Self::Priority;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 37 |     fn deadline(&self) -> Option<Self::Deadline>;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 38 |     fn depends_on(&self) -> Vec<&Self>;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Carrier` is never constructed
[INFO] [stdout]   --> src/carrier.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct Carrier<P : Protocol> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `send` is never used
[INFO] [stdout]   --> src/carrier.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl<P : Protocol> Carrier<P> {
[INFO] [stdout]    | ----------------------------- method in this implementation
[INFO] [stdout] 34 |     fn send(&mut self, msg : &P::M) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Protocol` is never used
[INFO] [stdout]   --> src/protocol.rs:29:11
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub trait Protocol {
[INFO] [stdout]    |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Quic` is never constructed
[INFO] [stdout]   --> src/protocols/quic/mod.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 65 | struct Quic {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "91d4e3e44a4b49fb5b5a7f1795632cbba847e3eb7eb4df96479d95a40c9daa8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91d4e3e44a4b49fb5b5a7f1795632cbba847e3eb7eb4df96479d95a40c9daa8e", kill_on_drop: false }`
[INFO] [stdout] 91d4e3e44a4b49fb5b5a7f1795632cbba847e3eb7eb4df96479d95a40c9daa8e