[INFO] fetching crate mqtt_5 0.1.1...
[INFO] testing mqtt_5-0.1.1 against try#fc4ba03ef77ca5018fb78a097d3b924d30f15bfc+target=i686-unknown-linux-musl for musl_upgrade_1_2_take3
[INFO] extracting crate mqtt_5 0.1.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate mqtt_5 0.1.1 on toolchain fc4ba03ef77ca5018fb78a097d3b924d30f15bfc
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mqtt_5 0.1.1
[INFO] finished tweaking crates.io crate mqtt_5 0.1.1
[INFO] tweaked toml for crates.io crate mqtt_5 0.1.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded packattack-derive v0.3.1
[INFO] [stderr]   Downloaded bit_reverse v0.1.8
[INFO] [stderr]   Downloaded bitreader_async v0.2.0
[INFO] [stderr]   Downloaded packattack v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74c6dfbc85889aa7daa5a3a872c4090e68651edf92a0e250c08d049ed0a77400
[INFO] running `Command { std: "docker" "start" "-a" "74c6dfbc85889aa7daa5a3a872c4090e68651edf92a0e250c08d049ed0a77400", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74c6dfbc85889aa7daa5a3a872c4090e68651edf92a0e250c08d049ed0a77400", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74c6dfbc85889aa7daa5a3a872c4090e68651edf92a0e250c08d049ed0a77400", kill_on_drop: false }`
[INFO] [stdout] 74c6dfbc85889aa7daa5a3a872c4090e68651edf92a0e250c08d049ed0a77400
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "build" "--frozen" "--message-format=json" "--target" "i686-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] ca57339167bd72194c3ff58ae8c11c21d759e470c1f2f558aaf590ac97ae559f
[INFO] running `Command { std: "docker" "start" "-a" "ca57339167bd72194c3ff58ae8c11c21d759e470c1f2f558aaf590ac97ae559f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.105
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling parking v2.0.0
[INFO] [stderr]    Compiling waker-fn v1.1.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling futures-io v0.3.25
[INFO] [stderr]    Compiling fastrand v1.8.0
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.9
[INFO] [stderr]    Compiling event-listener v2.5.3
[INFO] [stderr]    Compiling concurrent-queue v2.0.0
[INFO] [stderr]    Compiling futures-lite v1.12.0
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling polling v2.5.1
[INFO] [stderr]    Compiling async-io v1.12.0
[INFO] [stderr]    Compiling cc v1.0.77
[INFO] [stderr]    Compiling async-task v4.3.0
[INFO] [stderr]    Compiling async-channel v1.8.0
[INFO] [stderr]    Compiling socket2 v0.4.7
[INFO] [stderr]    Compiling atomic-waker v1.0.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling gimli v0.26.2
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling miniz_oxide v0.5.4
[INFO] [stderr]    Compiling async-lock v2.6.0
[INFO] [stderr]    Compiling object v0.29.0
[INFO] [stderr]    Compiling async-trait v0.1.59
[INFO] [stderr]    Compiling async-executor v1.5.0
[INFO] [stderr]    Compiling blocking v1.3.0
[INFO] [stderr]    Compiling once_cell v1.16.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling bit_reverse v0.1.8
[INFO] [stderr]    Compiling backtrace v0.3.66
[INFO] [stderr]    Compiling addr2line v0.17.0
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling ctor v0.1.26
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]    Compiling packattack-derive v0.3.1
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling async-global-executor v2.3.1
[INFO] [stderr]    Compiling async-std v1.12.0
[INFO] [stderr]    Compiling bitreader_async v0.2.0
[INFO] [stderr]    Compiling packattack v0.1.0
[INFO] [stderr]    Compiling mqtt_5 v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `arbitrary_enum_discriminant` has been stable since 1.66.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(arbitrary_enum_discriminant)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.27s
[INFO] running `Command { std: "docker" "inspect" "ca57339167bd72194c3ff58ae8c11c21d759e470c1f2f558aaf590ac97ae559f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca57339167bd72194c3ff58ae8c11c21d759e470c1f2f558aaf590ac97ae559f", kill_on_drop: false }`
[INFO] [stdout] ca57339167bd72194c3ff58ae8c11c21d759e470c1f2f558aaf590ac97ae559f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "test" "--frozen" "--no-run" "--message-format=json" "--target" "i686-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 2ce4d3c43909b95a49779ace74412c08621de2d1167d92a63dd25ae71c79c7a8
[INFO] running `Command { std: "docker" "start" "-a" "2ce4d3c43909b95a49779ace74412c08621de2d1167d92a63dd25ae71c79c7a8", kill_on_drop: false }`
[INFO] [stdout] warning: the feature `arbitrary_enum_discriminant` has been stable since 1.66.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(arbitrary_enum_discriminant)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling mqtt_5 v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `arbitrary_enum_discriminant` has been stable since 1.66.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(arbitrary_enum_discriminant)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "2ce4d3c43909b95a49779ace74412c08621de2d1167d92a63dd25ae71c79c7a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ce4d3c43909b95a49779ace74412c08621de2d1167d92a63dd25ae71c79c7a8", kill_on_drop: false }`
[INFO] [stdout] 2ce4d3c43909b95a49779ace74412c08621de2d1167d92a63dd25ae71c79c7a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "test" "--frozen" "--target" "i686-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 16a1a2ca2bd5d26230da62f31a84ceb4589fba0071af24ed1ab06d7895f4ea01
[INFO] running `Command { std: "docker" "start" "-a" "16a1a2ca2bd5d26230da62f31a84ceb4589fba0071af24ed1ab06d7895f4ea01", kill_on_drop: false }`
[INFO] [stderr] warning: the feature `arbitrary_enum_discriminant` has been stable since 1.66.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(arbitrary_enum_discriminant)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `mqtt_5` (lib) generated 1 warning
[INFO] [stderr] warning: `mqtt_5` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/mqtt_5-5bd02cdf2503523b)
[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] running `Command { std: "docker" "inspect" "16a1a2ca2bd5d26230da62f31a84ceb4589fba0071af24ed1ab06d7895f4ea01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16a1a2ca2bd5d26230da62f31a84ceb4589fba0071af24ed1ab06d7895f4ea01", kill_on_drop: false }`
[INFO] [stdout] 16a1a2ca2bd5d26230da62f31a84ceb4589fba0071af24ed1ab06d7895f4ea01