[INFO] fetching crate tjh-mqtt 0.2.1...
[INFO] checking tjh-mqtt-0.2.1 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate tjh-mqtt 0.2.1 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate tjh-mqtt 0.2.1 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tjh-mqtt 0.2.1
[INFO] finished tweaking crates.io crate tjh-mqtt 0.2.1
[INFO] tweaked toml for crates.io crate tjh-mqtt 0.2.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 53 packages to latest compatible versions
[INFO] [stderr]       Adding hermit-abi v0.3.9 (available: v0.4.0)
[INFO] [stderr]       Adding rustls v0.21.12 (available: v0.23.13)
[INFO] [stderr]       Adding rustls-webpki v0.101.7 (available: v0.102.8)
[INFO] [stderr]       Adding tokio-rustls v0.24.1 (available: v0.26.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (available: v0.13.2+wasi-0.2.1)
[INFO] [stderr]       Adding webpki-roots v0.25.4 (available: v0.26.6)
[INFO] [stderr]       Adding windows-sys v0.52.0 (available: v0.59.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dd8b748b2b0147ff362483ca6e5917792c015674de4102370a4bcce1fb398d01
[INFO] running `Command { std: "docker" "start" "-a" "dd8b748b2b0147ff362483ca6e5917792c015674de4102370a4bcce1fb398d01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd8b748b2b0147ff362483ca6e5917792c015674de4102370a4bcce1fb398d01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd8b748b2b0147ff362483ca6e5917792c015674de4102370a4bcce1fb398d01", kill_on_drop: false }`
[INFO] [stdout] dd8b748b2b0147ff362483ca6e5917792c015674de4102370a4bcce1fb398d01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Dtail_expr_drop_order" "-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a0a70387e1af004dbd3b95e9183e837a37bc8cb8ad124b9ab011b0c3459bfb18
[INFO] running `Command { std: "docker" "start" "-a" "a0a70387e1af004dbd3b95e9183e837a37bc8cb8ad124b9ab011b0c3459bfb18", kill_on_drop: false }`
[INFO] [stderr]     Checking bytes v1.7.2
[INFO] [stderr]     Checking tjh-mqtt v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]   --> src/topic.rs:82:41
[INFO] [stdout]    |
[INFO] [stdout] 82 |     pub fn from_static(s: &'static str) -> &Self {
[INFO] [stdout]    |                                            ^ this elided lifetime gets resolved as `'static`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stdout] help: consider specifying it explicitly
[INFO] [stdout]    |
[INFO] [stdout] 82 |     pub fn from_static(s: &'static str) -> &'static Self {
[INFO] [stdout]    |                                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]   --> src/topic.rs:82:41
[INFO] [stdout]    |
[INFO] [stdout] 82 |     pub fn from_static(s: &'static str) -> &Self {
[INFO] [stdout]    |                                            ^ this elided lifetime gets resolved as `'static`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stdout] help: consider specifying it explicitly
[INFO] [stdout]    |
[INFO] [stdout] 82 |     pub fn from_static(s: &'static str) -> &'static Self {
[INFO] [stdout]    |                                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `MAX` and `get` are never used
[INFO] [stdout]   --> src/misc.rs:95:12
[INFO] [stdout]    |
[INFO] [stdout] 93 | impl WrappingNonZeroU16 {
[INFO] [stdout]    | ----------------------- associated items in this implementation
[INFO] [stdout] 94 |     // pub const MIN: Self = Self(NonZeroU16::MIN);
[INFO] [stdout] 95 |     pub const MAX: Self = Self(NonZeroU16::MAX);
[INFO] [stdout]    |               ^^^
[INFO] [stdout] ...
[INFO] [stdout] 98 |     pub fn get(&self) -> NonZeroU16 {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `MAX` and `get` are never used
[INFO] [stdout]   --> src/misc.rs:95:12
[INFO] [stdout]    |
[INFO] [stdout] 93 | impl WrappingNonZeroU16 {
[INFO] [stdout]    | ----------------------- associated items in this implementation
[INFO] [stdout] 94 |     // pub const MIN: Self = Self(NonZeroU16::MIN);
[INFO] [stdout] 95 |     pub const MAX: Self = Self(NonZeroU16::MAX);
[INFO] [stdout]    |               ^^^
[INFO] [stdout] ...
[INFO] [stdout] 98 |     pub fn get(&self) -> NonZeroU16 {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "a0a70387e1af004dbd3b95e9183e837a37bc8cb8ad124b9ab011b0c3459bfb18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0a70387e1af004dbd3b95e9183e837a37bc8cb8ad124b9ab011b0c3459bfb18", kill_on_drop: false }`
[INFO] [stdout] a0a70387e1af004dbd3b95e9183e837a37bc8cb8ad124b9ab011b0c3459bfb18