[INFO] cloning repository https://github.com/Killavus/rust-graceful-kb-interrupt-handling
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Killavus/rust-graceful-kb-interrupt-handling" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKillavus%2Frust-graceful-kb-interrupt-handling", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKillavus%2Frust-graceful-kb-interrupt-handling'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1714d07cc16394d050f630aafd734244f4b37dc9
[INFO] checking Killavus/rust-graceful-kb-interrupt-handling/1714d07cc16394d050f630aafd734244f4b37dc9 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKillavus%2Frust-graceful-kb-interrupt-handling" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Killavus/rust-graceful-kb-interrupt-handling 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 git repo https://github.com/Killavus/rust-graceful-kb-interrupt-handling
[INFO] finished tweaking git repo https://github.com/Killavus/rust-graceful-kb-interrupt-handling
[INFO] tweaked toml for git repo https://github.com/Killavus/rust-graceful-kb-interrupt-handling written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Killavus/rust-graceful-kb-interrupt-handling 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-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 38cd4655050f7ed44a658f55685312e2673ae7f334fb065086af86474da96df0
[INFO] running `Command { std: "docker" "start" "-a" "38cd4655050f7ed44a658f55685312e2673ae7f334fb065086af86474da96df0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38cd4655050f7ed44a658f55685312e2673ae7f334fb065086af86474da96df0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38cd4655050f7ed44a658f55685312e2673ae7f334fb065086af86474da96df0", kill_on_drop: false }`
[INFO] [stdout] 38cd4655050f7ed44a658f55685312e2673ae7f334fb065086af86474da96df0
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d472e3730f947d498481dd983f2ebff02a6ec1438886601ccdbfd8e38d3c44f2
[INFO] running `Command { std: "docker" "start" "-a" "d472e3730f947d498481dd983f2ebff02a6ec1438886601ccdbfd8e38d3c44f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling rayon-core v1.7.1
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling rayon v1.3.1
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking ctrlc v3.1.4
[INFO] [stderr]     Checking rust-graceful-kb-interrupt-handling v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `pool`
[INFO] [stdout]   --> src/main.rs:21:17
[INFO] [stdout]    |
[INFO] [stdout] 21 |             let pool = rayon::ThreadPoolBuilder::new()
[INFO] [stdout]    |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_pool`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pool`
[INFO] [stdout]   --> src/main.rs:21:17
[INFO] [stdout]    |
[INFO] [stdout] 21 |             let pool = rayon::ThreadPoolBuilder::new()
[INFO] [stdout]    |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_pool`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 |     ctrlc::set_handler(move || dref.shutdown());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 59 |     let _ = ctrlc::set_handler(move || dref.shutdown());
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 |     ctrlc::set_handler(move || dref.shutdown());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 59 |     let _ = ctrlc::set_handler(move || dref.shutdown());
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.56s
[INFO] running `Command { std: "docker" "inspect" "d472e3730f947d498481dd983f2ebff02a6ec1438886601ccdbfd8e38d3c44f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d472e3730f947d498481dd983f2ebff02a6ec1438886601ccdbfd8e38d3c44f2", kill_on_drop: false }`
[INFO] [stdout] d472e3730f947d498481dd983f2ebff02a6ec1438886601ccdbfd8e38d3c44f2