[INFO] fetching crate enfync 0.1.6...
[INFO] checking enfync-0.1.6 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate enfync 0.1.6 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate enfync 0.1.6
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate enfync 0.1.6
[INFO] tweaked toml for crates.io crate enfync 0.1.6 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate enfync 0.1.6 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 81 packages to latest compatible versions
[INFO] [stderr]       Adding wasmtimer v0.2.1 (available: v0.4.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a158a97c147765b41aa2297493fe47688339be7379846cc7fb8527ad3d9d6476
[INFO] running `Command { std: "docker" "start" "-a" "a158a97c147765b41aa2297493fe47688339be7379846cc7fb8527ad3d9d6476", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a158a97c147765b41aa2297493fe47688339be7379846cc7fb8527ad3d9d6476", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a158a97c147765b41aa2297493fe47688339be7379846cc7fb8527ad3d9d6476", kill_on_drop: false }`
[INFO] [stdout] a158a97c147765b41aa2297493fe47688339be7379846cc7fb8527ad3d9d6476
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 979ceb3a06c06b7b59cdf12c7842bf42d81c9ebc7f03e137165d8058c613a791
[INFO] running `Command { std: "docker" "start" "-a" "979ceb3a06c06b7b59cdf12c7842bf42d81c9ebc7f03e137165d8058c613a791", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]     Checking futures-sink v0.3.31
[INFO] [stderr]     Checking pin-project-lite v0.2.16
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures-io v0.3.31
[INFO] [stderr]     Checking slab v0.4.11
[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]     Checking tokio v1.47.1
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling async-trait v0.1.89
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking enfync v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused implementer of `futures::Future` that must be used
[INFO] [stdout]   --> src/spawners.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |         self.spawn(task);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: futures do nothing unless you `.await` or poll them
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused implementer of `futures::Future` that must be used
[INFO] [stdout]   --> src/spawners.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |         self.spawn(task);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: futures do nothing unless you `.await` or poll them
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.41s
[INFO] running `Command { std: "docker" "inspect" "979ceb3a06c06b7b59cdf12c7842bf42d81c9ebc7f03e137165d8058c613a791", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "979ceb3a06c06b7b59cdf12c7842bf42d81c9ebc7f03e137165d8058c613a791", kill_on_drop: false }`
[INFO] [stdout] 979ceb3a06c06b7b59cdf12c7842bf42d81c9ebc7f03e137165d8058c613a791