[INFO] fetching crate polyfuse 0.4.1...
[INFO] checking polyfuse-0.4.1 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate polyfuse 0.4.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate polyfuse 0.4.1 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate polyfuse 0.4.1
[INFO] finished tweaking crates.io crate polyfuse 0.4.1
[INFO] tweaked toml for crates.io crate polyfuse 0.4.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b72ed24179026ea612e2fe806b17e699380db0a6367ae87494b1be82abd7d5c
[INFO] running `Command { std: "docker" "start" "-a" "4b72ed24179026ea612e2fe806b17e699380db0a6367ae87494b1be82abd7d5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b72ed24179026ea612e2fe806b17e699380db0a6367ae87494b1be82abd7d5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b72ed24179026ea612e2fe806b17e699380db0a6367ae87494b1be82abd7d5c", kill_on_drop: false }`
[INFO] [stdout] 4b72ed24179026ea612e2fe806b17e699380db0a6367ae87494b1be82abd7d5c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 75518a30844d926a9417a9a516a515e8bda11f83508ffc7cd4edc6715caed58e
[INFO] running `Command { std: "docker" "start" "-a" "75518a30844d926a9417a9a516a515e8bda11f83508ffc7cd4edc6715caed58e", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking tracing-core v0.1.18
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling zerocopy-derive v0.2.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]     Checking zerocopy v0.3.0
[INFO] [stderr]     Checking polyfuse-kernel v0.1.0
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking polyfuse v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `attr`
[INFO] [stdout]  --> src/reply.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     attr: fuse_attr,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `st`
[INFO] [stdout]    --> src/reply.rs:356:5
[INFO] [stdout]     |
[INFO] [stdout] 356 |     st: fuse_kstatfs,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `lk`
[INFO] [stdout]    --> src/reply.rs:478:5
[INFO] [stdout]     |
[INFO] [stdout] 478 |     lk: fuse_file_lock,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `attr`
[INFO] [stdout]  --> src/reply.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     attr: fuse_attr,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `st`
[INFO] [stdout]    --> src/reply.rs:356:5
[INFO] [stdout]     |
[INFO] [stdout] 356 |     st: fuse_kstatfs,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `lk`
[INFO] [stdout]    --> src/reply.rs:478:5
[INFO] [stdout]     |
[INFO] [stdout] 478 |     lk: fuse_file_lock,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.45s
[INFO] running `Command { std: "docker" "inspect" "75518a30844d926a9417a9a516a515e8bda11f83508ffc7cd4edc6715caed58e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75518a30844d926a9417a9a516a515e8bda11f83508ffc7cd4edc6715caed58e", kill_on_drop: false }`
[INFO] [stdout] 75518a30844d926a9417a9a516a515e8bda11f83508ffc7cd4edc6715caed58e