[INFO] fetching crate metalmq 0.2.1...
[INFO] checking metalmq-0.2.1 against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] extracting crate metalmq 0.2.1 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate metalmq 0.2.1 on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate metalmq 0.2.1
[INFO] finished tweaking crates.io crate metalmq 0.2.1
[INFO] tweaked toml for crates.io crate metalmq 0.2.1 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate metalmq 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded metalmq-client v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 185fd8f78632cc59224c0261fa14db1fa8cc2d4ad862bc6a16284b9ddd40baa6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "185fd8f78632cc59224c0261fa14db1fa8cc2d4ad862bc6a16284b9ddd40baa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "185fd8f78632cc59224c0261fa14db1fa8cc2d4ad862bc6a16284b9ddd40baa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "185fd8f78632cc59224c0261fa14db1fa8cc2d4ad862bc6a16284b9ddd40baa6", kill_on_drop: false }`
[INFO] [stdout] 185fd8f78632cc59224c0261fa14db1fa8cc2d4ad862bc6a16284b9ddd40baa6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 987461bd717b5b391634145efe5626ff2729ab83ebc2a344ebe32c145480333b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "987461bd717b5b391634145efe5626ff2729ab83ebc2a344ebe32c145480333b", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr] note: Switching to Edition 2021 will enable the use of the version 2 feature resolver in Cargo.
[INFO] [stderr] This may cause some dependencies to be built with fewer features enabled than previously.
[INFO] [stderr] More information about the resolver changes may be found at https://doc.rust-lang.org/nightly/edition-guide/rust-2021/default-cargo-resolver.html
[INFO] [stderr] When building the following dependencies, the given features will no longer be used:
[INFO] [stderr] 
[INFO] [stderr]   regex v1.5.4: default, unicode, unicode-age, unicode-bool, unicode-case, unicode-gencat, unicode-perl, unicode-script, unicode-segment
[INFO] [stderr]   regex-syntax v0.6.25: default, unicode, unicode-age, unicode-bool, unicode-case, unicode-gencat, unicode-perl, unicode-script, unicode-segment
[INFO] [stderr]   serde v1.0.126: derive, serde_derive
[INFO] [stderr]   syn v1.0.73 (as host dependency): extra-traits, visit-mut
[INFO] [stderr]   tokio v1.8.1: winapi
[INFO] [stderr] 
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking futures-timer v3.0.2
[INFO] [stderr]     Checking bencher v0.1.5
[INFO] [stderr]     Checking tracing-core v0.1.18
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking http v0.2.4
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling tokio v1.8.1
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking shh v1.0.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking textwrap v0.12.1
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]    Compiling peg-macros v0.6.3
[INFO] [stderr]     Checking http-body v0.4.2
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking peg v0.6.3
[INFO] [stderr]     Checking globset v0.4.8
[INFO] [stderr]     Checking env_logger v0.8.4
[INFO] [stderr]     Checking ignore v0.4.18
[INFO] [stderr]     Checking globwalk v0.8.1
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling async-stream-impl v0.3.2
[INFO] [stderr]    Compiling typed-builder v0.7.1
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]    Compiling cute_custom_default v2.1.0
[INFO] [stderr]     Checking async-stream v0.3.2
[INFO] [stderr]     Checking thiserror v1.0.26
[INFO] [stderr]     Checking futures-executor v0.3.15
[INFO] [stderr]     Checking futures v0.3.15
[INFO] [stderr]     Checking tokio-util v0.6.7
[INFO] [stderr]     Checking tokio-stream v0.1.7
[INFO] [stderr]     Checking h2 v0.3.3
[INFO] [stderr]     Checking metalmq-codec v0.2.1
[INFO] [stderr]     Checking metalmq-client v0.2.1
[INFO] [stderr]     Checking hyper v0.14.10
[INFO] [stderr]    Compiling gherkin_rust v0.10.1
[INFO] [stderr]     Checking metalmq v0.2.1 (/tmp/fixit)
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/exchange/manager.rs (3 fixes)
[INFO] [stderr]        Fixed src/queue/manager.rs (2 fixes)
[INFO] [stderr]        Fixed src/exchange/handler.rs (3 fixes)
[INFO] [stderr]        Fixed src/client/state.rs (1 fix)
[INFO] [stderr]     Checking cucumber_rust v0.8.4
[INFO] [stdout] warning: variant is never constructed: `ConnectionForced`
[INFO] [stdout]  --> src/client.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     ConnectionForced = 320,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InvalidPath`
[INFO] [stdout]   --> src/client.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     InvalidPath = 402,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `FrameError`
[INFO] [stdout]   --> src/client.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     FrameError = 501,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SyntaxError`
[INFO] [stdout]   --> src/client.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     SyntaxError = 502,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `UnexpectedFrame`
[INFO] [stdout]   --> src/client.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     UnexpectedFrame = 505,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ResourceError`
[INFO] [stdout]   --> src/client.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     ResourceError = 506,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NotImplemented`
[INFO] [stdout]   --> src/client.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     NotImplemented = 540,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InternalError`
[INFO] [stdout]   --> src/client.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     InternalError = 541,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ContentTooLarge`
[INFO] [stdout]   --> src/client.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     ContentTooLarge = 311,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NoRoute`
[INFO] [stdout]   --> src/client.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     NoRoute = 312,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NoConsumers`
[INFO] [stdout]   --> src/client.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     NoConsumers = 313,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `MessageSink`
[INFO] [stdout]   --> src/message.rs:37:1
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub(crate) type MessageSink = mpsc::Sender<Message>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `MessageRejected`
[INFO] [stdout]   --> src/queue/handler.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     MessageRejected,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Recover`
[INFO] [stdout]   --> src/queue/handler.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     Recover,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `QueueEmpty`
[INFO] [stdout]   --> src/queue/handler.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 |     QueueEmpty,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `no_ack`
[INFO] [stdout]   --> src/queue/handler.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 78 |     no_ack: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `exclusive`
[INFO] [stdout]   --> src/queue/handler.rs:80:5
[INFO] [stdout]    |
[INFO] [stdout] 80 |     exclusive: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `message`
[INFO] [stdout]    --> src/queue/handler.rs:321:5
[INFO] [stdout]     |
[INFO] [stdout] 321 |     message: Message,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sent_at`
[INFO] [stdout]    --> src/queue/handler.rs:324:5
[INFO] [stdout]     |
[INFO] [stdout] 324 |     sent_at: Instant,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Migrating benches/server.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/acceptance.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/helper.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/conn.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/consume.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/publish.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed benches/server.rs (1 fix)
[INFO] [stderr]        Fixed tests/consume.rs (1 fix)
[INFO] [stdout] warning: variant is never constructed: `ConnectionForced`
[INFO] [stdout]  --> src/client.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     ConnectionForced = 320,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InvalidPath`
[INFO] [stdout]   --> src/client.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     InvalidPath = 402,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `FrameError`
[INFO] [stdout]   --> src/client.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     FrameError = 501,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SyntaxError`
[INFO] [stdout]   --> src/client.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     SyntaxError = 502,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `UnexpectedFrame`
[INFO] [stdout]   --> src/client.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     UnexpectedFrame = 505,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ResourceError`
[INFO] [stdout]   --> src/client.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     ResourceError = 506,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NotImplemented`
[INFO] [stdout]   --> src/client.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     NotImplemented = 540,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InternalError`
[INFO] [stdout]   --> src/client.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     InternalError = 541,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ContentTooLarge`
[INFO] [stdout]   --> src/client.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     ContentTooLarge = 311,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NoRoute`
[INFO] [stdout]   --> src/client.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     NoRoute = 312,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NoConsumers`
[INFO] [stdout]   --> src/client.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     NoConsumers = 313,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `MessageSink`
[INFO] [stdout]   --> src/message.rs:37:1
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub(crate) type MessageSink = mpsc::Sender<Message>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `MessageRejected`
[INFO] [stdout]   --> src/queue/handler.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     MessageRejected,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Recover`
[INFO] [stdout]   --> src/queue/handler.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     Recover,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `QueueEmpty`
[INFO] [stdout]   --> src/queue/handler.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 |     QueueEmpty,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `no_ack`
[INFO] [stdout]   --> src/queue/handler.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 78 |     no_ack: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `exclusive`
[INFO] [stdout]   --> src/queue/handler.rs:80:5
[INFO] [stdout]    |
[INFO] [stdout] 80 |     exclusive: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `message`
[INFO] [stdout]    --> src/queue/handler.rs:321:5
[INFO] [stdout]     |
[INFO] [stdout] 321 |     message: Message,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sent_at`
[INFO] [stdout]    --> src/queue/handler.rs:324:5
[INFO] [stdout]     |
[INFO] [stdout] 324 |     sent_at: Instant,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 39s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling tokio v1.8.1
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]    Compiling gherkin_rust v0.10.1
[INFO] [stderr]     Checking tokio-util v0.6.7
[INFO] [stderr]     Checking tokio-stream v0.1.7
[INFO] [stderr]     Checking cucumber_rust v0.8.4
[INFO] [stderr]     Checking metalmq-codec v0.2.1
[INFO] [stderr]     Checking h2 v0.3.3
[INFO] [stderr]     Checking metalmq-client v0.2.1
[INFO] [stderr]     Checking hyper v0.14.10
[INFO] [stderr]     Checking metalmq v0.2.1 (/tmp/fixit)
[INFO] [stdout] error: cannot find derive macro `Serialize` in this scope
[INFO] [stdout]   --> src/exchange.rs:13:35
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[derive(Clone, Debug, PartialEq, Serialize)]
[INFO] [stdout]    |                                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde::Serialize`
[INFO] [stdout]   --> src/exchange.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use serde::Serialize;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Serialize` in this scope
[INFO] [stdout]   --> src/exchange.rs:13:35
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[derive(Clone, Debug, PartialEq, Serialize)]
[INFO] [stdout]    |                                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde::Serialize`
[INFO] [stdout]   --> src/exchange.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use serde::Serialize;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Exchange: Serialize` is not satisfied
[INFO] [stdout]     --> src/restapi.rs:13:38
[INFO] [stdout]      |
[INFO] [stdout] 13   |     let body = serde_json::to_string(&exchanges).unwrap();
[INFO] [stdout]      |                                      ^^^^^^^^^^ the trait `Serialize` is not implemented for `Exchange`
[INFO] [stdout]      |
[INFO] [stdout]      = note: required because of the requirements on the impl of `Serialize` for `Vec<Exchange>`
[INFO] [stdout] note: required by a bound in `serde_json::to_string`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_json-1.0.64/src/ser.rs:2221:17
[INFO] [stdout]      |
[INFO] [stdout] 2221 |     T: ?Sized + Serialize,
[INFO] [stdout]      |                 ^^^^^^^^^ required by this bound in `serde_json::to_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `exchange::Exchange: Serialize` is not satisfied
[INFO] [stdout]     --> src/restapi.rs:13:38
[INFO] [stdout]      |
[INFO] [stdout] 13   |     let body = serde_json::to_string(&exchanges).unwrap();
[INFO] [stdout]      |                                      ^^^^^^^^^^ the trait `Serialize` is not implemented for `exchange::Exchange`
[INFO] [stdout]      |
[INFO] [stdout]      = note: required because of the requirements on the impl of `Serialize` for `Vec<exchange::Exchange>`
[INFO] [stdout] note: required by a bound in `serde_json::to_string`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_json-1.0.64/src/ser.rs:2221:17
[INFO] [stdout]      |
[INFO] [stdout] 2221 |     T: ?Sized + Serialize,
[INFO] [stdout]      |                 ^^^^^^^^^ required by this bound in `serde_json::to_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `metalmq` due to 3 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] [stderr] error: failed to check after updating to 2021
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `cargo check --frozen --all --all-targets --message-format=json` (exit status: 101)
[INFO] running `Command { std: "docker" "inspect" "987461bd717b5b391634145efe5626ff2729ab83ebc2a344ebe32c145480333b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "987461bd717b5b391634145efe5626ff2729ab83ebc2a344ebe32c145480333b", kill_on_drop: false }`
[INFO] [stdout] 987461bd717b5b391634145efe5626ff2729ab83ebc2a344ebe32c145480333b