[INFO] fetching crate embedded-sdmmc 0.3.0...
[INFO] checking embedded-sdmmc-0.3.0 against try#05c8870159e4f328578a970e125aa76d24f03b56 for pr-76219
[INFO] extracting crate embedded-sdmmc 0.3.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate embedded-sdmmc 0.3.0 on toolchain 05c8870159e4f328578a970e125aa76d24f03b56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate embedded-sdmmc 0.3.0
[INFO] finished tweaking crates.io crate embedded-sdmmc 0.3.0
[INFO] tweaked toml for crates.io crate embedded-sdmmc 0.3.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate embedded-sdmmc 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] de7ae3c3d67b1111576bfed354e61b58991b5c22ce62e8bca135f37b8f655ee2
[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" "de7ae3c3d67b1111576bfed354e61b58991b5c22ce62e8bca135f37b8f655ee2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de7ae3c3d67b1111576bfed354e61b58991b5c22ce62e8bca135f37b8f655ee2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de7ae3c3d67b1111576bfed354e61b58991b5c22ce62e8bca135f37b8f655ee2", kill_on_drop: false }`
[INFO] [stdout] de7ae3c3d67b1111576bfed354e61b58991b5c22ce62e8bca135f37b8f655ee2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 103fe16c3ec789c0f99d76eae27ee043af9656fb10c40943e33f7d6fc9df70cd
[INFO] running `Command { std: "docker" "start" "-a" "103fe16c3ec789c0f99d76eae27ee043af9656fb10c40943e33f7d6fc9df70cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling log v0.4.10
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking nb v0.1.2
[INFO] [stderr]     Checking regex-syntax v0.6.12
[INFO] [stderr]     Checking embedded-hal v0.2.3
[INFO] [stderr]     Checking embedded-sdmmc v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/fat.rs:717:17
[INFO] [stdout]     |
[INFO] [stdout] 717 |     ) -> Result<(DirEntry), Error<D::Error>>
[INFO] [stdout]     |                 ^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/fat.rs:717:17
[INFO] [stdout]     |
[INFO] [stdout] 717 |     ) -> Result<(DirEntry), Error<D::Error>>
[INFO] [stdout]     |                 ^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.97s
[INFO] running `Command { std: "docker" "inspect" "103fe16c3ec789c0f99d76eae27ee043af9656fb10c40943e33f7d6fc9df70cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "103fe16c3ec789c0f99d76eae27ee043af9656fb10c40943e33f7d6fc9df70cd", kill_on_drop: false }`
[INFO] [stdout] 103fe16c3ec789c0f99d76eae27ee043af9656fb10c40943e33f7d6fc9df70cd