[INFO] fetching crate RustMqtt 0.1.1...
[INFO] testing RustMqtt-0.1.1 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate RustMqtt 0.1.1 into /workspace/builds/worker-101/source
[INFO] validating manifest of crates.io crate RustMqtt 0.1.1 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate RustMqtt 0.1.1
[INFO] finished tweaking crates.io crate RustMqtt 0.1.1
[INFO] tweaked toml for crates.io crate RustMqtt 0.1.1 written to /workspace/builds/worker-101/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b571518c2d3b7779ed653171a6da2157b08a357541cd23461f76c8942e4b8d9b
[INFO] running `Command { std: "docker" "start" "-a" "b571518c2d3b7779ed653171a6da2157b08a357541cd23461f76c8942e4b8d9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b571518c2d3b7779ed653171a6da2157b08a357541cd23461f76c8942e4b8d9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b571518c2d3b7779ed653171a6da2157b08a357541cd23461f76c8942e4b8d9b", kill_on_drop: false }`
[INFO] [stdout] b571518c2d3b7779ed653171a6da2157b08a357541cd23461f76c8942e4b8d9b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 94018cf5e2b54da03f65806293e734a9eaa84acfdea7ed3f58f04cc0ddc14b15
[INFO] running `Command { std: "docker" "start" "-a" "94018cf5e2b54da03f65806293e734a9eaa84acfdea7ed3f58f04cc0ddc14b15", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling RustMqtt v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:76:32
[INFO] [stdout]    |
[INFO] [stdout] 76 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 76 -     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout] 76 +     fn cause(&self) -> Option<&dyn error::Error> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:72:39
[INFO] [stdout]    |
[INFO] [stdout] 72 |             Error::Io(ref err) => err.description(),
[INFO] [stdout]    |                                       ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `RustMqtt` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `rust_mqtt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.64s
[INFO] running `Command { std: "docker" "inspect" "94018cf5e2b54da03f65806293e734a9eaa84acfdea7ed3f58f04cc0ddc14b15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94018cf5e2b54da03f65806293e734a9eaa84acfdea7ed3f58f04cc0ddc14b15", kill_on_drop: false }`
[INFO] [stdout] 94018cf5e2b54da03f65806293e734a9eaa84acfdea7ed3f58f04cc0ddc14b15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 264970e761bd593222f4ecb5f728e1cd0e06d3578bcf980184525f255c72564b
[INFO] running `Command { std: "docker" "start" "-a" "264970e761bd593222f4ecb5f728e1cd0e06d3578bcf980184525f255c72564b", kill_on_drop: false }`
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:76:32
[INFO] [stdout]    |
[INFO] [stdout] 76 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 76 -     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout] 76 +     fn cause(&self) -> Option<&dyn error::Error> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling RustMqtt v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:72:39
[INFO] [stdout]    |
[INFO] [stdout] 72 |             Error::Io(ref err) => err.description(),
[INFO] [stdout]    |                                       ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `RustMqtt` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `rust_mqtt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:76:32
[INFO] [stdout]    |
[INFO] [stdout] 76 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 76 -     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout] 76 +     fn cause(&self) -> Option<&dyn error::Error> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:72:39
[INFO] [stdout]    |
[INFO] [stdout] 72 |             Error::Io(ref err) => err.description(),
[INFO] [stdout]    |                                       ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `RustMqtt` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `rust_mqtt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.08s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/RustMqtt-cf1937c0a8670d8c)
[INFO] running `Command { std: "docker" "inspect" "264970e761bd593222f4ecb5f728e1cd0e06d3578bcf980184525f255c72564b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "264970e761bd593222f4ecb5f728e1cd0e06d3578bcf980184525f255c72564b", kill_on_drop: false }`
[INFO] [stdout] 264970e761bd593222f4ecb5f728e1cd0e06d3578bcf980184525f255c72564b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bcc011ad90d2e85d873563ede3e255178e91d13846c2bb59977fc950b41e6e18
[INFO] running `Command { std: "docker" "start" "-a" "bcc011ad90d2e85d873563ede3e255178e91d13846c2bb59977fc950b41e6e18", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout] 
[INFO] [stderr]   --> src/error.rs:76:32
[INFO] [stdout] running 24 tests
[INFO] [stderr]    |
[INFO] [stdout] test msg::test::message_from_pub_test ... ok
[INFO] [stderr] 76 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout] test read::test::read_packet_connack_test ... ok
[INFO] [stderr]    |                                ^^^^^^^^^^^^
[INFO] [stdout] test msg::test::to_topic_name_test ... ok
[INFO] [stderr]    |
[INFO] [stdout] test msg::test::message_to_pub_test ... ok
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] test read::test::read_packet_connect_mqisdp_protocol_test ... ok
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout] test read::test::read_packet_connect_mqtt_protocol_test ... ok
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] test read::test::read_packet_puback_test ... ok
[INFO] [stderr] help: use `dyn`
[INFO] [stdout] test read::test::read_packet_publish_qos0_test ... ok
[INFO] [stderr]    |
[INFO] [stdout] test read::test::read_packet_publish_qos1_test ... ok
[INFO] [stderr] 76 -     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout] test read::test::read_packet_suback_test ... ok
[INFO] [stderr] 76 +     fn cause(&self) -> Option<&dyn error::Error> {
[INFO] [stdout] test read::test::read_packet_subscribe_test ... ok
[INFO] [stderr]    | 
[INFO] [stdout] test read::test::read_packet_unsubscribe_test ... ok
[INFO] [stderr] 
[INFO] [stdout] test test::packet_identifier_test ... ok
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout] test test::protocol_test ... ok
[INFO] [stderr]   --> src/error.rs:72:39
[INFO] [stdout] test test::qos_min_test ... ok
[INFO] [stderr]    |
[INFO] [stdout] test topic::test::topic_is_not_valid_test ... ok
[INFO] [stderr] 72 |             Error::Io(ref err) => err.description(),
[INFO] [stdout] test topic::test::topic_path_test ... ok
[INFO] [stderr]    |                                       ^^^^^^^^^^^
[INFO] [stdout] test write::test::write_packet_connack_test ... ok
[INFO] [stderr]    |
[INFO] [stdout] test topic::test::wildcards_test ... ok
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] test write::test::write_packet_connect_mqisdp_protocol_test ... ok
[INFO] [stderr] 
[INFO] [stdout] test write::test::write_packet_connect_mqtt_protocol_test ... ok
[INFO] [stderr] warning: crate `RustMqtt` should have a snake case name
[INFO] [stdout] test write::test::write_packet_publish_at_least_once_test ... ok
[INFO] [stderr]   |
[INFO] [stdout] test write::test::write_packet_publish_at_most_once_test ... ok
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] test write::test::write_packet_subscribe_test ... ok
[INFO] [stderr]   = help: convert the identifier to snake case: `rust_mqtt`
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] test result: ok. 24 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] warning: `RustMqtt` (lib) generated 3 warnings
[INFO] [stdout] 
[INFO] [stderr] warning: `RustMqtt` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/RustMqtt-cf1937c0a8670d8c)
[INFO] [stderr]    Doc-tests RustMqtt
[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" "bcc011ad90d2e85d873563ede3e255178e91d13846c2bb59977fc950b41e6e18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcc011ad90d2e85d873563ede3e255178e91d13846c2bb59977fc950b41e6e18", kill_on_drop: false }`
[INFO] [stdout] bcc011ad90d2e85d873563ede3e255178e91d13846c2bb59977fc950b41e6e18