[INFO] updating cached repository https://github.com/hobinjk/mqtt-adapter
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bea682950fd77f4a77861c6bbae7cd14e85776ba
[INFO] checking hobinjk/mqtt-adapter against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhobinjk%2Fmqtt-adapter" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hobinjk/mqtt-adapter on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/hobinjk/mqtt-adapter
[INFO] finished tweaking git repo https://github.com/hobinjk/mqtt-adapter
[INFO] tweaked toml for git repo https://github.com/hobinjk/mqtt-adapter written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/hobinjk/mqtt-adapter already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 993dd6d9cdfbd7fed9b00f37e41027e1d938b493f30fe13a5f515e350b1f95b4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "993dd6d9cdfbd7fed9b00f37e41027e1d938b493f30fe13a5f515e350b1f95b4"`
[INFO] [stderr]    Compiling cmake v0.1.29
[INFO] [stderr]     Checking mqtt3 v0.1.4
[INFO] [stderr]     Checking serde_json v1.0.9
[INFO] [stderr]    Compiling nanomsg-sys v0.6.2
[INFO] [stderr]     Checking nanomsg v0.6.2
[INFO] [stderr]     Checking mqtt-adapter v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/gateway.rs:257:23
[INFO] [stderr]     |
[INFO] [stderr] 257 |     where E: Into<Box<std::error::Error+Send+Sync>> {
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error+Send+Sync`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/gateway.rs:257:23
[INFO] [stderr]     |
[INFO] [stderr] 257 |     where E: Into<Box<std::error::Error+Send+Sync>> {
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error+Send+Sync`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `PluginUnloaded`
[INFO] [stderr]   --> src/gateway.rs:92:5
[INFO] [stderr]    |
[INFO] [stderr] 92 | /     PluginUnloaded {
[INFO] [stderr] 93 | |         plugin_id: String,
[INFO] [stderr] 94 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AdapterUnloaded`
[INFO] [stderr]   --> src/gateway.rs:96:5
[INFO] [stderr]    |
[INFO] [stderr] 96 | /     AdapterUnloaded {
[INFO] [stderr] 97 | |         plugin_id: String,
[INFO] [stderr] 98 | |         adapter_id: String,
[INFO] [stderr] 99 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `HandleDeviceRemoved`
[INFO] [stderr]    --> src/gateway.rs:120:5
[INFO] [stderr]     |
[INFO] [stderr] 120 | /     HandleDeviceRemoved {
[INFO] [stderr] 121 | |         plugin_id: String,
[INFO] [stderr] 122 | |         adapter_id: String,
[INFO] [stderr] 123 | |         id: String,
[INFO] [stderr] 124 | |     },
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `PluginUnloaded`
[INFO] [stderr]   --> src/gateway.rs:92:5
[INFO] [stderr]    |
[INFO] [stderr] 92 | /     PluginUnloaded {
[INFO] [stderr] 93 | |         plugin_id: String,
[INFO] [stderr] 94 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AdapterUnloaded`
[INFO] [stderr]   --> src/gateway.rs:96:5
[INFO] [stderr]    |
[INFO] [stderr] 96 | /     AdapterUnloaded {
[INFO] [stderr] 97 | |         plugin_id: String,
[INFO] [stderr] 98 | |         adapter_id: String,
[INFO] [stderr] 99 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `HandleDeviceRemoved`
[INFO] [stderr]    --> src/gateway.rs:120:5
[INFO] [stderr]     |
[INFO] [stderr] 120 | /     HandleDeviceRemoved {
[INFO] [stderr] 121 | |         plugin_id: String,
[INFO] [stderr] 122 | |         adapter_id: String,
[INFO] [stderr] 123 | |         id: String,
[INFO] [stderr] 124 | |     },
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.50s
[INFO] running `"docker" "inspect" "993dd6d9cdfbd7fed9b00f37e41027e1d938b493f30fe13a5f515e350b1f95b4"`
[INFO] running `"docker" "rm" "-f" "993dd6d9cdfbd7fed9b00f37e41027e1d938b493f30fe13a5f515e350b1f95b4"`
[INFO] [stdout] 993dd6d9cdfbd7fed9b00f37e41027e1d938b493f30fe13a5f515e350b1f95b4