[INFO] cloning repository https://github.com/nicofff/rust_fat32
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nicofff/rust_fat32" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnicofff%2Frust_fat32", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnicofff%2Frust_fat32'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 375dbe2e2d5ddcf9530f58bbdc8c0d62b5c7e28f
[INFO] testing nicofff/rust_fat32 against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnicofff%2Frust_fat32" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nicofff/rust_fat32 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nicofff/rust_fat32
[INFO] finished tweaking git repo https://github.com/nicofff/rust_fat32
[INFO] tweaked toml for git repo https://github.com/nicofff/rust_fat32 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/nicofff/rust_fat32 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ef9171bda8663d3e6c16a26b858bf4a522aa761c60dd6c2847e013d937803a9e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ef9171bda8663d3e6c16a26b858bf4a522aa761c60dd6c2847e013d937803a9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef9171bda8663d3e6c16a26b858bf4a522aa761c60dd6c2847e013d937803a9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef9171bda8663d3e6c16a26b858bf4a522aa761c60dd6c2847e013d937803a9e", kill_on_drop: false }`
[INFO] [stdout] ef9171bda8663d3e6c16a26b858bf4a522aa761c60dd6c2847e013d937803a9e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 82d092d31d69a9367e8b85bf85a186e6b74cd097b5e313b39b1cdbf6b147be99
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "82d092d31d69a9367e8b85bf85a186e6b74cd097b5e313b39b1cdbf6b147be99", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling thread-scoped v1.0.2
[INFO] [stderr]    Compiling fuse v0.3.1
[INFO] [stderr]    Compiling regex v0.2.3
[INFO] [stderr]    Compiling env_logger v0.4.3
[INFO] [stderr]    Compiling rust_fat32 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `subdir`
[INFO] [stdout]   --> src/fatfs.rs:37:2
[INFO] [stdout]    |
[INFO] [stdout] 37 |     subdir:bool,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `cluster`
[INFO] [stdout]   --> src/fatfs.rs:38:2
[INFO] [stdout]    |
[INFO] [stdout] 38 |     cluster: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `filesize`
[INFO] [stdout]   --> src/fatfs.rs:39:2
[INFO] [stdout]    |
[INFO] [stdout] 39 |     filesize: usize
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.45s
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "82d092d31d69a9367e8b85bf85a186e6b74cd097b5e313b39b1cdbf6b147be99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82d092d31d69a9367e8b85bf85a186e6b74cd097b5e313b39b1cdbf6b147be99", kill_on_drop: false }`
[INFO] [stdout] 82d092d31d69a9367e8b85bf85a186e6b74cd097b5e313b39b1cdbf6b147be99
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bb6ba77eb5ba58564a2eade34da0cfac5cb15681d4b5e1b2a80741ee6d8fd2b5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "bb6ba77eb5ba58564a2eade34da0cfac5cb15681d4b5e1b2a80741ee6d8fd2b5", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_fat32 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `subdir`
[INFO] [stdout]   --> src/fatfs.rs:37:2
[INFO] [stdout]    |
[INFO] [stdout] 37 |     subdir:bool,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `cluster`
[INFO] [stdout]   --> src/fatfs.rs:38:2
[INFO] [stdout]    |
[INFO] [stdout] 38 |     cluster: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `filesize`
[INFO] [stdout]   --> src/fatfs.rs:39:2
[INFO] [stdout]    |
[INFO] [stdout] 39 |     filesize: usize
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `Command { std: "docker" "inspect" "bb6ba77eb5ba58564a2eade34da0cfac5cb15681d4b5e1b2a80741ee6d8fd2b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb6ba77eb5ba58564a2eade34da0cfac5cb15681d4b5e1b2a80741ee6d8fd2b5", kill_on_drop: false }`
[INFO] [stdout] bb6ba77eb5ba58564a2eade34da0cfac5cb15681d4b5e1b2a80741ee6d8fd2b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a283f5671f773e3e7e1ac571f1872d72a121d2b4acd29eb31ab8db2069dace88
[INFO] running `Command { std: "docker" "start" "-a" "a283f5671f773e3e7e1ac571f1872d72a121d2b4acd29eb31ab8db2069dace88", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr] warning: field is never read: `subdir`
[INFO] [stderr]   --> src/fatfs.rs:37:2
[INFO] [stderr]    |
[INFO] [stderr] 37 |     subdir:bool,
[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/fatfs.rs:38:2
[INFO] [stderr]    |
[INFO] [stderr] 38 |     cluster: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `filesize`
[INFO] [stderr]   --> src/fatfs.rs:39:2
[INFO] [stderr]    |
[INFO] [stderr] 39 |     filesize: usize
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_fat32` (bin "rust_fat32" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_fat32-65b979d2e13025b1)
[INFO] running `Command { std: "docker" "inspect" "a283f5671f773e3e7e1ac571f1872d72a121d2b4acd29eb31ab8db2069dace88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a283f5671f773e3e7e1ac571f1872d72a121d2b4acd29eb31ab8db2069dace88", kill_on_drop: false }`
[INFO] [stdout] a283f5671f773e3e7e1ac571f1872d72a121d2b4acd29eb31ab8db2069dace88