[INFO] fetching crate simple-fatfs 0.1.0-alpha.2... [INFO] testing simple-fatfs-0.1.0-alpha.2 against beta-2025-10-28 for beta-1.92-2 [INFO] extracting crate simple-fatfs 0.1.0-alpha.2 into /workspace/builds/worker-1-tc2/source [INFO] started tweaking crates.io crate simple-fatfs 0.1.0-alpha.2 [INFO] finished tweaking crates.io crate simple-fatfs 0.1.0-alpha.2 [INFO] tweaked toml for crates.io crate simple-fatfs 0.1.0-alpha.2 written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate simple-fatfs 0.1.0-alpha.2 on toolchain beta-2025-10-28 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate simple-fatfs 0.1.0-alpha.2 already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8bd6f470a05cfb921f22d06e7d184e2b28a2366f1e96ca8c4e6dc0b6c4481c68 [INFO] running `Command { std: "docker" "start" "-a" "8bd6f470a05cfb921f22d06e7d184e2b28a2366f1e96ca8c4e6dc0b6c4481c68", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8bd6f470a05cfb921f22d06e7d184e2b28a2366f1e96ca8c4e6dc0b6c4481c68", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8bd6f470a05cfb921f22d06e7d184e2b28a2366f1e96ca8c4e6dc0b6c4481c68", kill_on_drop: false }` [INFO] [stdout] 8bd6f470a05cfb921f22d06e7d184e2b28a2366f1e96ca8c4e6dc0b6c4481c68 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 546ca313c2ae6d06d28da091a90c0430530d8bc15af68a557dacc49c01cbf9a7 [INFO] running `Command { std: "docker" "start" "-a" "546ca313c2ae6d06d28da091a90c0430530d8bc15af68a557dacc49c01cbf9a7", kill_on_drop: false }` [INFO] [stderr] Compiling siphasher v1.0.1 [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Compiling memchr v2.7.5 [INFO] [stderr] Compiling itoa v1.0.15 [INFO] [stderr] Compiling serde v1.0.219 [INFO] [stderr] Compiling serde_json v1.0.142 [INFO] [stderr] Compiling ryu v1.0.20 [INFO] [stderr] Compiling syn v2.0.104 [INFO] [stderr] Compiling virtue v0.0.18 [INFO] [stderr] Compiling time-macros v0.2.22 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling unty v0.0.4 [INFO] [stderr] Compiling akin v0.4.0 [INFO] [stderr] Compiling phf_shared v0.11.3 [INFO] [stderr] Compiling phf v0.11.3 [INFO] [stderr] Compiling bitflags v2.9.1 [INFO] [stderr] Compiling typed-path v0.10.0 [INFO] [stderr] Compiling bincode_derive v2.0.1 [INFO] [stderr] Compiling setbits v0.1.0 [INFO] [stderr] Compiling embedded-io v0.6.1 [INFO] [stderr] Compiling phf_generator v0.11.3 [INFO] [stderr] Compiling phf_codegen v0.11.3 [INFO] [stderr] Compiling bincode v2.0.1 [INFO] [stderr] Compiling time v0.3.41 [INFO] [stderr] Compiling serde_derive v1.0.219 [INFO] [stderr] Compiling bitfield-struct v0.8.0 [INFO] [stderr] Compiling oem_cp v2.1.0 [INFO] [stderr] Compiling simple-fatfs v0.1.0-alpha.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/fat/bpb.rs:33:17 [INFO] [stdout] | [INFO] [stdout] 32 | todo!("ExFAT not yet implemented"); [INFO] [stdout] | ---------------------------------- any code following this expression is unreachable [INFO] [stdout] 33 | / SectorIndex::from(boot_record_exfat.fat_count) [INFO] [stdout] 34 | | + SectorIndex::from(n) * boot_record_exfat.fat_len [INFO] [stdout] | |______________________________________________________________________^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/fat/bpb.rs:130:13 [INFO] [stdout] | [INFO] [stdout] 129 | todo!("ExFAT not yet implemented"); [INFO] [stdout] | ---------------------------------- any code following this expression is unreachable [INFO] [stdout] 130 | FATType::ExFAT [INFO] [stdout] | ^^^^^^^^^^^^^^ unreachable expression [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `boot_record_exfat` [INFO] [stdout] --> src/fat/bpb.rs:30:31 [INFO] [stdout] | [INFO] [stdout] 30 | BootRecord::ExFAT(boot_record_exfat) => { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_boot_record_exfat` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `ExFAT` is never constructed [INFO] [stdout] --> src/fat/bpb.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 8 | pub(crate) enum BootRecord { [INFO] [stdout] | ---------- variant in this enum [INFO] [stdout] 9 | Fat(BootRecordFAT), [INFO] [stdout] 10 | ExFAT(BootRecordExFAT), [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `BootRecord` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple fields are never read [INFO] [stdout] --> src/fat/bpb.rs:151:9 [INFO] [stdout] | [INFO] [stdout] 146 | pub(crate) struct BootRecordExFAT { [INFO] [stdout] | --------------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 151 | pub volume_len: u64, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 152 | pub fat_offset: u32, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 153 | pub fat_len: u32, [INFO] [stdout] 154 | pub cluster_heap_offset: u32, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 155 | pub cluster_count: u32, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] 156 | pub root_dir_cluster: u32, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] 157 | pub partition_serial_num: u32, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 158 | pub fs_revision: u16, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 159 | pub flags: u16, [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 163 | pub drive_select: u8, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] 164 | pub used_percentage: u8, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `BootRecordExFAT` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `INFINITE_LOOP` is never used [INFO] [stdout] --> src/fat/consts.rs:8:18 [INFO] [stdout] | [INFO] [stdout] 8 | pub(crate) const INFINITE_LOOP: [u8; 3] = [0xEB, 0xFE, 0x90]; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 26.17s [INFO] running `Command { std: "docker" "inspect" "546ca313c2ae6d06d28da091a90c0430530d8bc15af68a557dacc49c01cbf9a7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "546ca313c2ae6d06d28da091a90c0430530d8bc15af68a557dacc49c01cbf9a7", kill_on_drop: false }` [INFO] [stdout] 546ca313c2ae6d06d28da091a90c0430530d8bc15af68a557dacc49c01cbf9a7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2b724b677bf349707f716e0c0a01e59f6c4a66fb48a8cbc2b18ea8f75d61bd4f [INFO] running `Command { std: "docker" "start" "-a" "2b724b677bf349707f716e0c0a01e59f6c4a66fb48a8cbc2b18ea8f75d61bd4f", kill_on_drop: false }` [INFO] [stderr] Compiling anstream v0.6.19 [INFO] [stderr] Compiling env_filter v0.1.3 [INFO] [stderr] Compiling embedded-io v0.6.1 [INFO] [stderr] Compiling serde_json v1.0.142 [INFO] [stderr] Compiling test-log-macros v0.2.18 [INFO] [stderr] Compiling regex v1.11.2 [INFO] [stderr] Compiling embedded-io-adapters v0.6.2 [INFO] [stderr] Compiling env_logger v0.11.8 [INFO] [stderr] Compiling test-log v0.2.18 [INFO] [stderr] Compiling oem_cp v2.1.0 [INFO] [stderr] Compiling simple-fatfs v0.1.0-alpha.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/fat/bpb.rs:33:17 [INFO] [stdout] | [INFO] [stdout] 32 | todo!("ExFAT not yet implemented"); [INFO] [stdout] | ---------------------------------- any code following this expression is unreachable [INFO] [stdout] 33 | / SectorIndex::from(boot_record_exfat.fat_count) [INFO] [stdout] 34 | | + SectorIndex::from(n) * boot_record_exfat.fat_len [INFO] [stdout] | |______________________________________________________________________^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/fat/bpb.rs:130:13 [INFO] [stdout] | [INFO] [stdout] 129 | todo!("ExFAT not yet implemented"); [INFO] [stdout] | ---------------------------------- any code following this expression is unreachable [INFO] [stdout] 130 | FATType::ExFAT [INFO] [stdout] | ^^^^^^^^^^^^^^ unreachable expression [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: couldn't read `src/fat/../../imgs/minfs.img`: No such file or directory (os error 2) [INFO] [stdout] --> src/fat/tests.rs:8:23 [INFO] [stdout] | [INFO] [stdout] 8 | static MINFS: &[u8] = include_bytes!("../../imgs/minfs.img"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: couldn't read `src/fat/../../imgs/fat12.img`: No such file or directory (os error 2) [INFO] [stdout] --> src/fat/tests.rs:9:23 [INFO] [stdout] | [INFO] [stdout] 9 | static FAT12: &[u8] = include_bytes!("../../imgs/fat12.img"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: couldn't read `src/fat/../../imgs/fat16.img`: No such file or directory (os error 2) [INFO] [stdout] --> src/fat/tests.rs:10:23 [INFO] [stdout] | [INFO] [stdout] 10 | static FAT16: &[u8] = include_bytes!("../../imgs/fat16.img"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: couldn't read `src/fat/../../imgs/fat32.img`: No such file or directory (os error 2) [INFO] [stdout] --> src/fat/tests.rs:11:23 [INFO] [stdout] | [INFO] [stdout] 11 | static FAT32: &[u8] = include_bytes!("../../imgs/fat32.img"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: couldn't read `src/fat/../../tests/bee movie script.txt`: No such file or directory (os error 2) [INFO] [stdout] --> src/fat/tests.rs:76:33 [INFO] [stdout] | [INFO] [stdout] 76 | static BEE_MOVIE_SCRIPT: &str = include_str!("../../tests/bee movie script.txt"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: couldn't read `src/fat/../../tests/I don't need a badge.txt`: No such file or directory (os error 2) [INFO] [stdout] --> src/fat/tests.rs:86:36 [INFO] [stdout] | [INFO] [stdout] 86 | static I_DONT_NEED_A_BADGE: &str = include_str!("../../tests/I don't need a badge.txt"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `boot_record_exfat` [INFO] [stdout] --> src/fat/bpb.rs:30:31 [INFO] [stdout] | [INFO] [stdout] 30 | BootRecord::ExFAT(boot_record_exfat) => { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_boot_record_exfat` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/fat/bpb.rs:33:17 [INFO] [stdout] | [INFO] [stdout] 32 | todo!("ExFAT not yet implemented"); [INFO] [stdout] | ---------------------------------- any code following this expression is unreachable [INFO] [stdout] 33 | / SectorIndex::from(boot_record_exfat.fat_count) [INFO] [stdout] 34 | | + SectorIndex::from(n) * boot_record_exfat.fat_len [INFO] [stdout] | |______________________________________________________________________^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/fat/bpb.rs:130:13 [INFO] [stdout] | [INFO] [stdout] 129 | todo!("ExFAT not yet implemented"); [INFO] [stdout] | ---------------------------------- any code following this expression is unreachable [INFO] [stdout] 130 | FATType::ExFAT [INFO] [stdout] | ^^^^^^^^^^^^^^ unreachable expression [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `ExFAT` is never constructed [INFO] [stdout] --> src/fat/bpb.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 8 | pub(crate) enum BootRecord { [INFO] [stdout] | ---------- variant in this enum [INFO] [stdout] 9 | Fat(BootRecordFAT), [INFO] [stdout] 10 | ExFAT(BootRecordExFAT), [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `BootRecord` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple fields are never read [INFO] [stdout] --> src/fat/bpb.rs:151:9 [INFO] [stdout] | [INFO] [stdout] 146 | pub(crate) struct BootRecordExFAT { [INFO] [stdout] | --------------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 151 | pub volume_len: u64, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 152 | pub fat_offset: u32, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 153 | pub fat_len: u32, [INFO] [stdout] 154 | pub cluster_heap_offset: u32, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 155 | pub cluster_count: u32, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] 156 | pub root_dir_cluster: u32, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] 157 | pub partition_serial_num: u32, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 158 | pub fs_revision: u16, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 159 | pub flags: u16, [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 163 | pub drive_select: u8, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] 164 | pub used_percentage: u8, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `BootRecordExFAT` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `INFINITE_LOOP` is never used [INFO] [stdout] --> src/fat/consts.rs:8:18 [INFO] [stdout] | [INFO] [stdout] 8 | pub(crate) const INFINITE_LOOP: [u8; 3] = [0xEB, 0xFE, 0x90]; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `boot_record_exfat` [INFO] [stdout] --> src/fat/bpb.rs:30:31 [INFO] [stdout] | [INFO] [stdout] 30 | BootRecord::ExFAT(boot_record_exfat) => { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_boot_record_exfat` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `simple-fatfs` (lib test) due to 6 previous errors; 3 warnings emitted [INFO] running `Command { std: "docker" "inspect" "2b724b677bf349707f716e0c0a01e59f6c4a66fb48a8cbc2b18ea8f75d61bd4f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2b724b677bf349707f716e0c0a01e59f6c4a66fb48a8cbc2b18ea8f75d61bd4f", kill_on_drop: false }` [INFO] [stdout] 2b724b677bf349707f716e0c0a01e59f6c4a66fb48a8cbc2b18ea8f75d61bd4f