[INFO] fetching crate rsmqtt 0.1.4...
[INFO] checking rsmqtt-0.1.4 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate rsmqtt 0.1.4 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate rsmqtt 0.1.4
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate rsmqtt 0.1.4
[INFO] tweaked toml for crates.io crate rsmqtt 0.1.4 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rsmqtt 0.1.4 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rsmqtt 0.1.4 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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a5361dfe2348a094dec05d1a08ebfb432ceed7a85eba13e72883e223a19b1cde
[INFO] running `Command { std: "docker" "start" "-a" "a5361dfe2348a094dec05d1a08ebfb432ceed7a85eba13e72883e223a19b1cde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5361dfe2348a094dec05d1a08ebfb432ceed7a85eba13e72883e223a19b1cde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5361dfe2348a094dec05d1a08ebfb432ceed7a85eba13e72883e223a19b1cde", kill_on_drop: false }`
[INFO] [stdout] a5361dfe2348a094dec05d1a08ebfb432ceed7a85eba13e72883e223a19b1cde
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 49bb841e52820954ff259b371d619a33ccf0846ac77c8027c6cb73b1574dece5
[INFO] running `Command { std: "docker" "start" "-a" "49bb841e52820954ff259b371d619a33ccf0846ac77c8027c6cb73b1574dece5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.167
[INFO] [stderr]    Compiling semver v1.0.23
[INFO] [stderr]     Checking pin-project-lite v0.2.15
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[INFO] [stderr]    Compiling aws-lc-rs v1.11.1
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[INFO] [stderr]     Checking tokio v1.41.1
[INFO] [stderr]     Checking zerocopy v0.7.35
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[INFO] [stderr]     Checking futures-executor v0.3.31
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[INFO] [stderr]     Checking rsmqtt v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/link.rs:263:13
[INFO] [stdout]     |
[INFO] [stdout] 263 |         let mut reason_code = ReasonCode::Success;
[INFO] [stdout]     |             ----^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/link.rs:263:13
[INFO] [stdout]     |
[INFO] [stdout] 263 |         let mut reason_code = ReasonCode::Success;
[INFO] [stdout]     |             ----^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `RetainHandling` is more private than the item `Subscription::retain_handling`
[INFO] [stdout]   --> src/packet/subscribe.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub retain_handling: RetainHandling,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ field `Subscription::retain_handling` is reachable at visibility `pub`
[INFO] [stdout]    |
[INFO] [stdout] note: but type `RetainHandling` is only usable at visibility `pub(self)`
[INFO] [stdout]   --> src/packet/subscribe.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | enum RetainHandling {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `RetainHandling` is more private than the item `Subscription::retain_handling`
[INFO] [stdout]   --> src/packet/subscribe.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub retain_handling: RetainHandling,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ field `Subscription::retain_handling` is reachable at visibility `pub`
[INFO] [stdout]    |
[INFO] [stdout] note: but type `RetainHandling` is only usable at visibility `pub(self)`
[INFO] [stdout]   --> src/packet/subscribe.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | enum RetainHandling {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 39.44s
[INFO] running `Command { std: "docker" "inspect" "49bb841e52820954ff259b371d619a33ccf0846ac77c8027c6cb73b1574dece5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49bb841e52820954ff259b371d619a33ccf0846ac77c8027c6cb73b1574dece5", kill_on_drop: false }`
[INFO] [stdout] 49bb841e52820954ff259b371d619a33ccf0846ac77c8027c6cb73b1574dece5