[INFO] fetching crate log4rs-mqtt 1.0.1...
[INFO] testing log4rs-mqtt-1.0.1 against 1.75.0 for beta-1.76-1
[INFO] extracting crate log4rs-mqtt 1.0.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate log4rs-mqtt 1.0.1 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate log4rs-mqtt 1.0.1
[INFO] finished tweaking crates.io crate log4rs-mqtt 1.0.1
[INFO] tweaked toml for crates.io crate log4rs-mqtt 1.0.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded paho-mqtt v0.12.3
[INFO] [stderr]   Downloaded paho-mqtt-sys v0.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 20be9cb884dd3bdd8ffe87fd7b8e393c5ccfe50accc933ee9daf464d32b576f2
[INFO] running `Command { std: "docker" "start" "-a" "20be9cb884dd3bdd8ffe87fd7b8e393c5ccfe50accc933ee9daf464d32b576f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20be9cb884dd3bdd8ffe87fd7b8e393c5ccfe50accc933ee9daf464d32b576f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20be9cb884dd3bdd8ffe87fd7b8e393c5ccfe50accc933ee9daf464d32b576f2", kill_on_drop: false }`
[INFO] [stdout] 20be9cb884dd3bdd8ffe87fd7b8e393c5ccfe50accc933ee9daf464d32b576f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "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" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c4c41826ffe8572308e692c1915b6443e2a39faae701f305f75ba3f5ca51ba16
[INFO] running `Command { std: "docker" "start" "-a" "c4c41826ffe8572308e692c1915b6443e2a39faae701f305f75ba3f5ca51ba16", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling crossbeam-utils v0.8.18
[INFO] [stderr]    Compiling futures-io v0.3.30
[INFO] [stderr]    Compiling rustix v0.38.28
[INFO] [stderr]    Compiling parking v2.2.0
[INFO] [stderr]    Compiling value-bag v1.4.3
[INFO] [stderr]    Compiling linux-raw-sys v0.4.12
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling fastrand v2.0.1
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling libloading v0.8.1
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling home v0.5.9
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling tracing-core v0.1.32
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[INFO] [stderr]    Compiling linux-raw-sys v0.3.8
[INFO] [stderr]    Compiling unsafe-any-ors v1.0.0
[INFO] [stderr]    Compiling anyhow v1.0.79
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[INFO] [stderr]    Compiling event-listener-strategy v0.4.0
[INFO] [stderr]    Compiling yaml-rust v0.4.5
[INFO] [stderr]    Compiling async-lock v3.2.0
[INFO] [stderr]    Compiling async-channel v2.1.1
[INFO] [stderr]    Compiling async-channel v1.9.0
[INFO] [stderr]    Compiling async-lock v2.8.0
[INFO] [stderr]    Compiling typemap-ors v1.0.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.10
[INFO] [stderr]    Compiling arc-swap v1.6.0
[INFO] [stderr]    Compiling log-mdc v0.1.0
[INFO] [stderr]    Compiling ordered-float v2.10.1
[INFO] [stderr]    Compiling regex-automata v0.4.3
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling socket2 v0.4.10
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]    Compiling blocking v1.5.1
[INFO] [stderr]    Compiling async-executor v1.8.0
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling thread-id v4.2.1
[INFO] [stderr]    Compiling chrono v0.4.31
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling futures-timer v3.0.2
[INFO] [stderr]    Compiling cmake v0.1.50
[INFO] [stderr]    Compiling serde_derive v1.0.194
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[INFO] [stderr]    Compiling thiserror-impl v1.0.56
[INFO] [stderr]    Compiling regex v1.10.2
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling thiserror v1.0.56
[INFO] [stderr]    Compiling which v4.4.2
[INFO] [stderr]    Compiling polling v3.3.1
[INFO] [stderr]    Compiling async-io v2.2.2
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling async-global-executor v2.4.1
[INFO] [stderr]    Compiling serde v1.0.194
[INFO] [stderr]    Compiling futures-executor v0.3.30
[INFO] [stderr]    Compiling futures v0.3.30
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling serde-value v0.7.0
[INFO] [stderr]    Compiling serde_json v1.0.111
[INFO] [stderr]    Compiling serde_yaml v0.8.26
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling async-std v1.12.0
[INFO] [stderr]    Compiling log4rs v1.2.0
[INFO] [stderr]    Compiling paho-mqtt-sys v0.9.0
[INFO] [stderr]    Compiling paho-mqtt v0.12.3
[INFO] [stderr]    Compiling log4rs-mqtt v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.40s
[INFO] running `Command { std: "docker" "inspect" "c4c41826ffe8572308e692c1915b6443e2a39faae701f305f75ba3f5ca51ba16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4c41826ffe8572308e692c1915b6443e2a39faae701f305f75ba3f5ca51ba16", kill_on_drop: false }`
[INFO] [stdout] c4c41826ffe8572308e692c1915b6443e2a39faae701f305f75ba3f5ca51ba16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b94481d7b1a931b0d9cd2531abefbf9cae77d4ba99966e09d29596ffaeba7a3b
[INFO] running `Command { std: "docker" "start" "-a" "b94481d7b1a931b0d9cd2531abefbf9cae77d4ba99966e09d29596ffaeba7a3b", kill_on_drop: false }`
[INFO] [stderr]    Compiling log4rs-mqtt v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "b94481d7b1a931b0d9cd2531abefbf9cae77d4ba99966e09d29596ffaeba7a3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b94481d7b1a931b0d9cd2531abefbf9cae77d4ba99966e09d29596ffaeba7a3b", kill_on_drop: false }`
[INFO] [stdout] b94481d7b1a931b0d9cd2531abefbf9cae77d4ba99966e09d29596ffaeba7a3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "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" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c603963719824bfdba18089e66cef49fb7dc0e408e325aab307d86c2e8141989
[INFO] running `Command { std: "docker" "start" "-a" "c603963719824bfdba18089e66cef49fb7dc0e408e325aab307d86c2e8141989", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/log4rs_mqtt-3c80d97ed39ee051)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests log4rs-mqtt
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 10) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 10) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `MqttAppender`
[INFO] [stdout]  --> src/lib.rs:11:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | let mqtt_log = MqttAppender::builder()
[INFO] [stdout]   |                ^^^^^^^^^^^^ use of undeclared type `MqttAppender`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Config`
[INFO] [stdout]  --> src/lib.rs:15:18
[INFO] [stdout]   |
[INFO] [stdout] 7 | let log_config = Config::builder()
[INFO] [stdout]   |                  ^^^^^^ use of undeclared type `Config`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Appender`
[INFO] [stdout]  --> src/lib.rs:16:15
[INFO] [stdout]   |
[INFO] [stdout] 8 |     .appender(Appender::builder().build("mqtt", Box::new(mqtt_log)))
[INFO] [stdout]   |               ^^^^^^^^ use of undeclared type `Appender`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Root`
[INFO] [stdout]  --> src/lib.rs:17:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     .build(Root::builder().appender("mqtt").build(LevelFilter::Info))
[INFO] [stdout]   |            ^^^^ use of undeclared type `Root`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `LevelFilter`
[INFO] [stdout]  --> src/lib.rs:17:51
[INFO] [stdout]   |
[INFO] [stdout] 9 |     .build(Root::builder().appender("mqtt").build(LevelFilter::Info))
[INFO] [stdout]   |                                                   ^^^^^^^^^^^ use of undeclared type `LevelFilter`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 10)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "c603963719824bfdba18089e66cef49fb7dc0e408e325aab307d86c2e8141989", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c603963719824bfdba18089e66cef49fb7dc0e408e325aab307d86c2e8141989", kill_on_drop: false }`
[INFO] [stdout] c603963719824bfdba18089e66cef49fb7dc0e408e325aab307d86c2e8141989
[INFO] testing log4rs-mqtt-1.0.1 against beta-2023-12-22 for beta-1.76-1
[INFO] extracting crate log4rs-mqtt 1.0.1 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate log4rs-mqtt 1.0.1 on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate log4rs-mqtt 1.0.1
[INFO] finished tweaking crates.io crate log4rs-mqtt 1.0.1
[INFO] tweaked toml for crates.io crate log4rs-mqtt 1.0.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "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" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a3517ec24e1d2f29723c8953fe098995ed337e6cc6900003de8a35948bd276e2
[INFO] running `Command { std: "docker" "start" "-a" "a3517ec24e1d2f29723c8953fe098995ed337e6cc6900003de8a35948bd276e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a3517ec24e1d2f29723c8953fe098995ed337e6cc6900003de8a35948bd276e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3517ec24e1d2f29723c8953fe098995ed337e6cc6900003de8a35948bd276e2", kill_on_drop: false }`
[INFO] [stdout] a3517ec24e1d2f29723c8953fe098995ed337e6cc6900003de8a35948bd276e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f396591898053b62bcbca760ca2990fa37e06db483fccf87e8d5ecf699ec86cb
[INFO] running `Command { std: "docker" "start" "-a" "f396591898053b62bcbca760ca2990fa37e06db483fccf87e8d5ecf699ec86cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
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[INFO] [stderr]    Compiling rustix v0.38.28
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[INFO] [stderr]    Compiling linux-raw-sys v0.4.12
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[INFO] [stderr]    Compiling fastrand v2.0.1
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[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling async-std v1.12.0
[INFO] [stderr]    Compiling log4rs v1.2.0
[INFO] [stderr]    Compiling paho-mqtt-sys v0.9.0
[INFO] [stderr]    Compiling paho-mqtt v0.12.3
[INFO] [stderr]    Compiling log4rs-mqtt v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.16s
[INFO] running `Command { std: "docker" "inspect" "f396591898053b62bcbca760ca2990fa37e06db483fccf87e8d5ecf699ec86cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f396591898053b62bcbca760ca2990fa37e06db483fccf87e8d5ecf699ec86cb", kill_on_drop: false }`
[INFO] [stdout] f396591898053b62bcbca760ca2990fa37e06db483fccf87e8d5ecf699ec86cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a8031b3d2f46d4395857a0f517bd05456a3b295d6a10e59c08c31094f0dc93e
[INFO] running `Command { std: "docker" "start" "-a" "8a8031b3d2f46d4395857a0f517bd05456a3b295d6a10e59c08c31094f0dc93e", kill_on_drop: false }`
[INFO] [stderr]    Compiling log4rs-mqtt v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "8a8031b3d2f46d4395857a0f517bd05456a3b295d6a10e59c08c31094f0dc93e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a8031b3d2f46d4395857a0f517bd05456a3b295d6a10e59c08c31094f0dc93e", kill_on_drop: false }`
[INFO] [stdout] 8a8031b3d2f46d4395857a0f517bd05456a3b295d6a10e59c08c31094f0dc93e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d8bf3bd20d306a70f01a573e4ddb4628ddc8b6556e02799870a24c070f8ddf30
[INFO] running `Command { std: "docker" "start" "-a" "d8bf3bd20d306a70f01a573e4ddb4628ddc8b6556e02799870a24c070f8ddf30", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/log4rs_mqtt-e10526afa5872651)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests log4rs-mqtt
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 10) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 10) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `MqttAppender`
[INFO] [stdout]  --> src/lib.rs:11:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | let mqtt_log = MqttAppender::builder()
[INFO] [stdout]   |                ^^^^^^^^^^^^ use of undeclared type `MqttAppender`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Config`
[INFO] [stdout]  --> src/lib.rs:15:18
[INFO] [stdout]   |
[INFO] [stdout] 7 | let log_config = Config::builder()
[INFO] [stdout]   |                  ^^^^^^ use of undeclared type `Config`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Appender`
[INFO] [stdout]  --> src/lib.rs:16:15
[INFO] [stdout]   |
[INFO] [stdout] 8 |     .appender(Appender::builder().build("mqtt", Box::new(mqtt_log)))
[INFO] [stdout]   |               ^^^^^^^^ use of undeclared type `Appender`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Root`
[INFO] [stdout]  --> src/lib.rs:17:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     .build(Root::builder().appender("mqtt").build(LevelFilter::Info))
[INFO] [stdout]   |            ^^^^ use of undeclared type `Root`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `LevelFilter`
[INFO] [stdout]  --> src/lib.rs:17:51
[INFO] [stdout]   |
[INFO] [stdout] 9 |     .build(Root::builder().appender("mqtt").build(LevelFilter::Info))
[INFO] [stdout]   |                                                   ^^^^^^^^^^^ use of undeclared type `LevelFilter`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 10)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "d8bf3bd20d306a70f01a573e4ddb4628ddc8b6556e02799870a24c070f8ddf30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8bf3bd20d306a70f01a573e4ddb4628ddc8b6556e02799870a24c070f8ddf30", kill_on_drop: false }`
[INFO] [stdout] d8bf3bd20d306a70f01a573e4ddb4628ddc8b6556e02799870a24c070f8ddf30
