[INFO] fetching crate async-vfs 0.56.0...
[INFO] checking async-vfs-0.56.0 against master#a3f76a26e045a760bb1163b7eab36872985242d5 for pr-130930
[INFO] extracting crate async-vfs 0.56.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate async-vfs 0.56.0 on toolchain a3f76a26e045a760bb1163b7eab36872985242d5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-vfs 0.56.0
[INFO] finished tweaking crates.io crate async-vfs 0.56.0
[INFO] tweaked toml for crates.io crate async-vfs 0.56.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 17 packages to latest compatible versions
[INFO] [stderr]       Adding fastrand v1.9.0 (available: v2.1.1)
[INFO] [stderr]       Adding futures-lite v1.13.0 (available: v2.3.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+a3f76a26e045a760bb1163b7eab36872985242d5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 97309d2e294ab8188b4423a9d99ccec15aaf1625ff8586214a324da1a2fa376d
[INFO] running `Command { std: "docker" "start" "-a" "97309d2e294ab8188b4423a9d99ccec15aaf1625ff8586214a324da1a2fa376d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97309d2e294ab8188b4423a9d99ccec15aaf1625ff8586214a324da1a2fa376d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97309d2e294ab8188b4423a9d99ccec15aaf1625ff8586214a324da1a2fa376d", kill_on_drop: false }`
[INFO] [stdout] 97309d2e294ab8188b4423a9d99ccec15aaf1625ff8586214a324da1a2fa376d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa259512bd64e57fe3bc3a3d3d060b8752cca6be87f874a64b5c680f95b92bec
[INFO] running `Command { std: "docker" "start" "-a" "fa259512bd64e57fe3bc3a3d3d060b8752cca6be87f874a64b5c680f95b92bec", kill_on_drop: false }`
[INFO] [stderr]     Checking fastrand v1.9.0
[INFO] [stderr]     Checking waker-fn v1.2.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.64
[INFO] [stderr]    Compiling async-trait v0.1.83
[INFO] [stderr]     Checking futures-lite v1.13.0
[INFO] [stderr]     Checking thiserror v1.0.64
[INFO] [stderr]     Checking async-vfs v0.56.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `VfsResultExt` is never used
[INFO] [stdout]   --> src/error.rs:37:18
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub(crate) trait VfsResultExt<T> {
[INFO] [stdout]    |                  ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `VfsResultExt` is never used
[INFO] [stdout]   --> src/error.rs:37:18
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub(crate) trait VfsResultExt<T> {
[INFO] [stdout]    |                  ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "fa259512bd64e57fe3bc3a3d3d060b8752cca6be87f874a64b5c680f95b92bec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa259512bd64e57fe3bc3a3d3d060b8752cca6be87f874a64b5c680f95b92bec", kill_on_drop: false }`
[INFO] [stdout] fa259512bd64e57fe3bc3a3d3d060b8752cca6be87f874a64b5c680f95b92bec