[INFO] fetching crate kingslayer 0.5.5...
[INFO] checking kingslayer-0.5.5 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate kingslayer 0.5.5 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate kingslayer 0.5.5 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kingslayer 0.5.5
[INFO] finished tweaking crates.io crate kingslayer 0.5.5
[INFO] tweaked toml for crates.io crate kingslayer 0.5.5 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate crates.io crate kingslayer 0.5.5 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf4a085e1c211590e28a65429f797136925acffa4883c3ac04612d42b86b69f9
[INFO] running `Command { std: "docker" "start" "-a" "cf4a085e1c211590e28a65429f797136925acffa4883c3ac04612d42b86b69f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf4a085e1c211590e28a65429f797136925acffa4883c3ac04612d42b86b69f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf4a085e1c211590e28a65429f797136925acffa4883c3ac04612d42b86b69f9", kill_on_drop: false }`
[INFO] [stdout] cf4a085e1c211590e28a65429f797136925acffa4883c3ac04612d42b86b69f9
[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 -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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e0beacd8f874378d2b10de16a614702a07ed6a962f806ce9fefadfd53e50a3d
[INFO] running `Command { std: "docker" "start" "-a" "3e0beacd8f874378d2b10de16a614702a07ed6a962f806ce9fefadfd53e50a3d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.120
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.8
[INFO] [stderr]    Compiling syn v1.0.89
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.4
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling quote v1.0.16
[INFO] [stderr]     Checking getrandom v0.2.5
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking ron v0.6.6
[INFO] [stderr]     Checking kingslayer v0.5.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Breakable`
[INFO] [stdout]   --> src/entity/mod.rs:12:21
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub use breakable::{Breakable, Durability};
[INFO] [stdout]    |                     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Breakable`
[INFO] [stdout]   --> src/entity/mod.rs:12:21
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub use breakable::{Breakable, Durability};
[INFO] [stdout]    |                     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Breakable` is never used
[INFO] [stdout]   --> src/entity/breakable.rs:17:11
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub trait Breakable {}
[INFO] [stdout]    |           ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `lock` is never used
[INFO] [stdout]   --> src/entity/lockable.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub trait Lockable {
[INFO] [stdout]    |           -------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 23 |     fn lock(&mut self) -> CmdResult;
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Breakable` is never used
[INFO] [stdout]   --> src/entity/breakable.rs:17:11
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub trait Breakable {}
[INFO] [stdout]    |           ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `lock` is never used
[INFO] [stdout]   --> src/entity/lockable.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub trait Lockable {
[INFO] [stdout]    |           -------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 23 |     fn lock(&mut self) -> CmdResult;
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.36s
[INFO] running `Command { std: "docker" "inspect" "3e0beacd8f874378d2b10de16a614702a07ed6a962f806ce9fefadfd53e50a3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e0beacd8f874378d2b10de16a614702a07ed6a962f806ce9fefadfd53e50a3d", kill_on_drop: false }`
[INFO] [stdout] 3e0beacd8f874378d2b10de16a614702a07ed6a962f806ce9fefadfd53e50a3d