[INFO] cloning repository https://github.com/stay-on-main/fs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stay-on-main/fs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstay-on-main%2Ffs"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstay-on-main%2Ffs'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7332a04c7e0443af98501a47f7b3e74a23e238df
[INFO] checking stay-on-main/fs against try#7cb06892a23b4da510686618c8730f0b2e8bd952 for pr-66963
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstay-on-main%2Ffs" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/stay-on-main/fs on toolchain 7cb06892a23b4da510686618c8730f0b2e8bd952
[INFO] running `"/workspace/cargo-home/bin/cargo" "+7cb06892a23b4da510686618c8730f0b2e8bd952" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/stay-on-main/fs
[INFO] finished tweaking git repo https://github.com/stay-on-main/fs
[INFO] tweaked toml for git repo https://github.com/stay-on-main/fs written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/stay-on-main/fs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+7cb06892a23b4da510686618c8730f0b2e8bd952" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+7cb06892a23b4da510686618c8730f0b2e8bd952" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 49c508b931fc6ca93d89aa7d70e7c0bcecb7ea4d05cd18c9e56d346b4d2ddda0
[INFO] running `"docker" "start" "-a" "49c508b931fc6ca93d89aa7d70e7c0bcecb7ea4d05cd18c9e56d346b4d2ddda0"`
[INFO] [stderr]     Checking fs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: field is never read: `cluster`
[INFO] [stderr]  --> src/fat/file.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     cluster: u32,
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `cluster`
[INFO] [stderr]  --> src/fat/file.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     cluster: u32,
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.34s
[INFO] running `"docker" "inspect" "49c508b931fc6ca93d89aa7d70e7c0bcecb7ea4d05cd18c9e56d346b4d2ddda0"`
[INFO] running `"docker" "rm" "-f" "49c508b931fc6ca93d89aa7d70e7c0bcecb7ea4d05cd18c9e56d346b4d2ddda0"`
[INFO] [stdout] 49c508b931fc6ca93d89aa7d70e7c0bcecb7ea4d05cd18c9e56d346b4d2ddda0