[INFO] cloning repository https://github.com/yaozijian/mqttlib
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yaozijian/mqttlib" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyaozijian%2Fmqttlib", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyaozijian%2Fmqttlib'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8d208dd74a9fa528c52a550f21d5124a015cc76b
[INFO] checking yaozijian/mqttlib against try#5ef65a4ed75279dc1b7a26cedc27293a9f4ca8db for pr-143717
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyaozijian%2Fmqttlib" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/yaozijian/mqttlib
[INFO] finished tweaking git repo https://github.com/yaozijian/mqttlib
[INFO] tweaked toml for git repo https://github.com/yaozijian/mqttlib written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/yaozijian/mqttlib on toolchain 5ef65a4ed75279dc1b7a26cedc27293a9f4ca8db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5ef65a4ed75279dc1b7a26cedc27293a9f4ca8db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/yaozijian/mqttlib already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5ef65a4ed75279dc1b7a26cedc27293a9f4ca8db" "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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+5ef65a4ed75279dc1b7a26cedc27293a9f4ca8db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f0ca62d6da6d655f5d56d24cdbb8af191ed5a4f7bc255382851b7613f6d053b6
[INFO] running `Command { std: "docker" "start" "-a" "f0ca62d6da6d655f5d56d24cdbb8af191ed5a4f7bc255382851b7613f6d053b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f0ca62d6da6d655f5d56d24cdbb8af191ed5a4f7bc255382851b7613f6d053b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0ca62d6da6d655f5d56d24cdbb8af191ed5a4f7bc255382851b7613f6d053b6", kill_on_drop: false }`
[INFO] [stdout] f0ca62d6da6d655f5d56d24cdbb8af191ed5a4f7bc255382851b7613f6d053b6
[INFO] checking yaozijian/mqttlib against try#5ef65a4ed75279dc1b7a26cedc27293a9f4ca8db for pr-143717
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyaozijian%2Fmqttlib" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/yaozijian/mqttlib
[INFO] finished tweaking git repo https://github.com/yaozijian/mqttlib
[INFO] tweaked toml for git repo https://github.com/yaozijian/mqttlib written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/yaozijian/mqttlib on toolchain 5ef65a4ed75279dc1b7a26cedc27293a9f4ca8db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5ef65a4ed75279dc1b7a26cedc27293a9f4ca8db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/yaozijian/mqttlib already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5ef65a4ed75279dc1b7a26cedc27293a9f4ca8db" "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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+5ef65a4ed75279dc1b7a26cedc27293a9f4ca8db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8e42017bb0073c96a2da60ee58f1ee4fa98a7450a0921df2286d980a2e8654f4
[INFO] running `Command { std: "docker" "start" "-a" "8e42017bb0073c96a2da60ee58f1ee4fa98a7450a0921df2286d980a2e8654f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e42017bb0073c96a2da60ee58f1ee4fa98a7450a0921df2286d980a2e8654f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e42017bb0073c96a2da60ee58f1ee4fa98a7450a0921df2286d980a2e8654f4", kill_on_drop: false }`
[INFO] [stdout] 8e42017bb0073c96a2da60ee58f1ee4fa98a7450a0921df2286d980a2e8654f4
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+5ef65a4ed75279dc1b7a26cedc27293a9f4ca8db" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d7b6d10c3b2cc6b0ec31c3a45620b51dc9359410315d8a866f591aa3919e5e9b
[INFO] running `Command { std: "docker" "start" "-a" "d7b6d10c3b2cc6b0ec31c3a45620b51dc9359410315d8a866f591aa3919e5e9b", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling serde v1.0.90
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling bincode v1.1.3
[INFO] [stderr]     Checking mqttlib v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant `FLAGS_RESERVED_0` is never used
[INFO] [stdout]   --> src/head.rs:59:7
[INFO] [stdout]    |
[INFO] [stdout] 59 | const FLAGS_RESERVED_0: u8 = 0;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FLAGS_QO_S_1` is never used
[INFO] [stdout]   --> src/head.rs:60:7
[INFO] [stdout]    |
[INFO] [stdout] 60 | const FLAGS_QO_S_1: u8 = 2;
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `check_packet_flags` is never used
[INFO] [stdout]    --> src/head.rs:130:5
[INFO] [stdout]     |
[INFO] [stdout] 129 | impl Head {
[INFO] [stdout]     | --------- method in this implementation
[INFO] [stdout] 130 |     fn check_packet_flags(&self) -> bincode::Result<()> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RawPacket` is never constructed
[INFO] [stdout]  --> src/raw_packet.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct RawPacket {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PktConnect` is never constructed
[INFO] [stdout]  --> src/pkt_connect.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct PktConnect {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_connect_flags` is never used
[INFO] [stdout]   --> src/pkt_connect.rs:93:5
[INFO] [stdout]    |
[INFO] [stdout] 92 | impl PktConnect {
[INFO] [stdout]    | --------------- method in this implementation
[INFO] [stdout] 93 |     fn get_connect_flags(&self) -> u8 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PktConnAck` is never constructed
[INFO] [stdout]  --> src/pkt_connack.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct PktConnAck {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `MqttPacket` is never used
[INFO] [stdout]   --> src/mqtt_packet.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum MqttPacket {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `FromRawPacket` is never used
[INFO] [stdout]   --> src/mqtt_packet.rs:28:7
[INFO] [stdout]    |
[INFO] [stdout] 28 | trait FromRawPacket {
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.77s
[INFO] running `Command { std: "docker" "inspect" "d7b6d10c3b2cc6b0ec31c3a45620b51dc9359410315d8a866f591aa3919e5e9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7b6d10c3b2cc6b0ec31c3a45620b51dc9359410315d8a866f591aa3919e5e9b", kill_on_drop: false }`
[INFO] [stdout] d7b6d10c3b2cc6b0ec31c3a45620b51dc9359410315d8a866f591aa3919e5e9b
