[INFO] cloning repository https://github.com/raghumanimehta/Rusty-File-System-
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/raghumanimehta/Rusty-File-System-" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraghumanimehta%2FRusty-File-System-", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraghumanimehta%2FRusty-File-System-'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7b73aa7c48c1ee4c77546a74224d67ce05a8cade
[INFO] testing raghumanimehta/Rusty-File-System- against try#bd7d74411512a3dd3b35d2f699c51dd2557c7e7e+cargoflags=-Zbuild-dir-new-layout for pr-149852-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraghumanimehta%2FRusty-File-System-" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/raghumanimehta/Rusty-File-System-
[INFO] finished tweaking git repo https://github.com/raghumanimehta/Rusty-File-System-
[INFO] tweaked toml for git repo https://github.com/raghumanimehta/Rusty-File-System- written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/raghumanimehta/Rusty-File-System- on toolchain bd7d74411512a3dd3b35d2f699c51dd2557c7e7e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/raghumanimehta/Rusty-File-System- 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" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4ed8018315e2f6066a6412b532bffdb7bb1f270e40be19a9e6b7843f88463634
[INFO] running `Command { std: "docker" "start" "-a" "4ed8018315e2f6066a6412b532bffdb7bb1f270e40be19a9e6b7843f88463634", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ed8018315e2f6066a6412b532bffdb7bb1f270e40be19a9e6b7843f88463634", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ed8018315e2f6066a6412b532bffdb7bb1f270e40be19a9e6b7843f88463634", kill_on_drop: false }`
[INFO] [stdout] 4ed8018315e2f6066a6412b532bffdb7bb1f270e40be19a9e6b7843f88463634
[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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "build" "--frozen" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] d5319505f17699c8b97ea0ee60be9275a736bcc654081bf823c6fbfeb8423c60
[INFO] running `Command { std: "docker" "start" "-a" "d5319505f17699c8b97ea0ee60be9275a736bcc654081bf823c6fbfeb8423c60", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.178
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling utf8parse v0.2.2
[INFO] [stderr]    Compiling log v0.4.29
[INFO] [stderr]    Compiling colorchoice v1.0.4
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling anstyle v1.0.13
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.2
[INFO] [stderr]    Compiling anstyle-query v1.1.5
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling fuser v0.14.0
[INFO] [stderr]    Compiling jiff v0.2.16
[INFO] [stderr]    Compiling syn v2.0.111
[INFO] [stderr]    Compiling bitvec v1.0.1
[INFO] [stderr]    Compiling anstyle-parse v0.2.7
[INFO] [stderr]    Compiling anstream v0.6.21
[INFO] [stderr]    Compiling page_size v0.6.0
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling env_filter v0.1.4
[INFO] [stderr]    Compiling env_logger v0.11.8
[INFO] [stderr]    Compiling rusty-file-system v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Level`, `debug`, `info`, and `log_enabled`
[INFO] [stdout]  --> src/main.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use log::{debug, error, info, log_enabled, Level};
[INFO] [stdout]   |           ^^^^^         ^^^^  ^^^^^^^^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error`
[INFO] [stdout]  --> src/main.rs:5:16
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::{env, error};
[INFO] [stdout]   |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FS_SIZE_BYTES` is never used
[INFO] [stdout]   --> src/main.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const FS_SIZE_BYTES: u64 = 1u64 * (0b1 << 30) as u64; // 1 GB
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BLK_SIZE_BYTES` is never used
[INFO] [stdout]   --> src/main.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | const BLK_SIZE_BYTES: u64 = 4096u64;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `RESERVED_DATA_BLKS` is never used
[INFO] [stdout]   --> src/main.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const RESERVED_DATA_BLKS: u32 = 3;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NUM_DATA_BLKS` is never used
[INFO] [stdout]   --> src/main.rs:16:7
[INFO] [stdout]    |
[INFO] [stdout] 16 | const NUM_DATA_BLKS: u32 = (FS_SIZE_BYTES / BLK_SIZE_BYTES) as u32;
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FREE_BLK_BMAP_SIZE_BYTES` is never used
[INFO] [stdout]   --> src/main.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 | const FREE_BLK_BMAP_SIZE_BYTES: usize = ((NUM_DATA_BLKS + 7) / 8) as usize;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_NUM_INODES` is never used
[INFO] [stdout]   --> src/main.rs:20:7
[INFO] [stdout]    |
[INFO] [stdout] 20 | const MAX_NUM_INODES: u32 = 10;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `RESERVED_INODES` is never used
[INFO] [stdout]   --> src/main.rs:21:7
[INFO] [stdout]    |
[INFO] [stdout] 21 | const RESERVED_INODES: u32 = 2; // 0: null inode, 1: root
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FREE_INODE_BMAP_SIZE_BYTES` is never used
[INFO] [stdout]   --> src/main.rs:22:7
[INFO] [stdout]    |
[INFO] [stdout] 22 | const FREE_INODE_BMAP_SIZE_BYTES: usize = ((MAX_NUM_INODES + 7) / 8) as usize;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NUM_INO_DIRECT_PTR` is never used
[INFO] [stdout]   --> src/main.rs:23:7
[INFO] [stdout]    |
[INFO] [stdout] 23 | const NUM_INO_DIRECT_PTR: usize = 12;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `INVALID_PTR` is never used
[INFO] [stdout]   --> src/main.rs:24:7
[INFO] [stdout]    |
[INFO] [stdout] 24 | const INVALID_PTR: u32 = 0;
[INFO] [stdout]    |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FSMetadata` is never constructed
[INFO] [stdout]   --> src/main.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | struct FSMetadata {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `FSMetadataError` is never used
[INFO] [stdout]   --> src/main.rs:52:6
[INFO] [stdout]    |
[INFO] [stdout] 52 | enum FSMetadataError {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `dec_free_ino_count` and `inc_free_ino_count` are never used
[INFO] [stdout]   --> src/main.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 56 | impl FSMetadata {
[INFO] [stdout]    | --------------- methods in this implementation
[INFO] [stdout] 57 |     fn dec_free_ino_count(&mut self) -> Result<(), FSMetadataError> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 71 |     fn inc_free_ino_count(&mut self) -> Result<(), FSMetadataError> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Block` is never constructed
[INFO] [stdout]   --> src/main.rs:87:8
[INFO] [stdout]    |
[INFO] [stdout] 87 | struct Block {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `BitMapError` is never used
[INFO] [stdout]   --> src/main.rs:92:6
[INFO] [stdout]    |
[INFO] [stdout] 92 | enum BitMapError {
[INFO] [stdout]    |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `FreeObjectBitmap` is never used
[INFO] [stdout]   --> src/main.rs:98:7
[INFO] [stdout]    |
[INFO] [stdout] 98 | trait FreeObjectBitmap<const N: usize> {
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FreeBlockBitmap` is never constructed
[INFO] [stdout]    --> src/main.rs:142:8
[INFO] [stdout]     |
[INFO] [stdout] 142 | struct FreeBlockBitmap {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Inode` is never constructed
[INFO] [stdout]    --> src/main.rs:165:8
[INFO] [stdout]     |
[INFO] [stdout] 165 | struct Inode {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `secs_from_unix_epoch` is never used
[INFO] [stdout]    --> src/main.rs:178:4
[INFO] [stdout]     |
[INFO] [stdout] 178 | fn secs_from_unix_epoch() -> i64 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `update_mtime` are never used
[INFO] [stdout]    --> src/main.rs:186:8
[INFO] [stdout]     |
[INFO] [stdout] 185 | impl Inode {
[INFO] [stdout]     | ---------- associated items in this implementation
[INFO] [stdout] 186 |     fn new(ino_id: u32, kind: FileType, perm: u16) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 201 |     fn update_mtime(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FreeInodeBitmap` is never constructed
[INFO] [stdout]    --> src/main.rs:206:8
[INFO] [stdout]     |
[INFO] [stdout] 206 | struct FreeInodeBitmap {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FSState` is never constructed
[INFO] [stdout]    --> src/main.rs:226:8
[INFO] [stdout]     |
[INFO] [stdout] 226 | struct FSState {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `InodeError` is never used
[INFO] [stdout]    --> src/main.rs:235:6
[INFO] [stdout]     |
[INFO] [stdout] 235 | enum InodeError {
[INFO] [stdout]     |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `alloc_inode`, and `free_inode` are never used
[INFO] [stdout]    --> src/main.rs:261:8
[INFO] [stdout]     |
[INFO] [stdout] 260 | impl FSState {
[INFO] [stdout]     | ------------ associated items in this implementation
[INFO] [stdout] 261 |     fn new(
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 277 |     fn alloc_inode(&mut self, kind: FileType, perm: u16) -> Result<u32, InodeError> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 295 |     fn free_inode(&mut self, ino_id: u32) -> Result<(), InodeError> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/main.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 58 |         if self.free_ino_count < 0 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.07s
[INFO] running `Command { std: "docker" "inspect" "d5319505f17699c8b97ea0ee60be9275a736bcc654081bf823c6fbfeb8423c60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5319505f17699c8b97ea0ee60be9275a736bcc654081bf823c6fbfeb8423c60", kill_on_drop: false }`
[INFO] [stdout] d5319505f17699c8b97ea0ee60be9275a736bcc654081bf823c6fbfeb8423c60
[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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "test" "--frozen" "--no-run" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] da07bca4fa8f470148c5eadd43c878cffef767202473a47addc43650295d7282
[INFO] running `Command { std: "docker" "start" "-a" "da07bca4fa8f470148c5eadd43c878cffef767202473a47addc43650295d7282", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stdout] warning: unused imports: `Level`, `debug`, `info`, and `log_enabled`
[INFO] [stdout]  --> src/main.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use log::{debug, error, info, log_enabled, Level};
[INFO] [stdout]   |           ^^^^^         ^^^^  ^^^^^^^^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error`
[INFO] [stdout]  --> src/main.rs:5:16
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::{env, error};
[INFO] [stdout]   |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FS_SIZE_BYTES` is never used
[INFO] [stdout]   --> src/main.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const FS_SIZE_BYTES: u64 = 1u64 * (0b1 << 30) as u64; // 1 GB
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BLK_SIZE_BYTES` is never used
[INFO] [stdout]   --> src/main.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | const BLK_SIZE_BYTES: u64 = 4096u64;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `RESERVED_DATA_BLKS` is never used
[INFO] [stdout]   --> src/main.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const RESERVED_DATA_BLKS: u32 = 3;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NUM_DATA_BLKS` is never used
[INFO] [stdout]   --> src/main.rs:16:7
[INFO] [stdout]    |
[INFO] [stdout] 16 | const NUM_DATA_BLKS: u32 = (FS_SIZE_BYTES / BLK_SIZE_BYTES) as u32;
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FREE_BLK_BMAP_SIZE_BYTES` is never used
[INFO] [stdout]   --> src/main.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 | const FREE_BLK_BMAP_SIZE_BYTES: usize = ((NUM_DATA_BLKS + 7) / 8) as usize;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_NUM_INODES` is never used
[INFO] [stdout]   --> src/main.rs:20:7
[INFO] [stdout]    |
[INFO] [stdout] 20 | const MAX_NUM_INODES: u32 = 10;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `RESERVED_INODES` is never used
[INFO] [stdout]   --> src/main.rs:21:7
[INFO] [stdout]    |
[INFO] [stdout] 21 | const RESERVED_INODES: u32 = 2; // 0: null inode, 1: root
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FREE_INODE_BMAP_SIZE_BYTES` is never used
[INFO] [stdout]   --> src/main.rs:22:7
[INFO] [stdout]    |
[INFO] [stdout] 22 | const FREE_INODE_BMAP_SIZE_BYTES: usize = ((MAX_NUM_INODES + 7) / 8) as usize;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NUM_INO_DIRECT_PTR` is never used
[INFO] [stdout]   --> src/main.rs:23:7
[INFO] [stdout]    |
[INFO] [stdout] 23 | const NUM_INO_DIRECT_PTR: usize = 12;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `INVALID_PTR` is never used
[INFO] [stdout]   --> src/main.rs:24:7
[INFO] [stdout]    |
[INFO] [stdout] 24 | const INVALID_PTR: u32 = 0;
[INFO] [stdout]    |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FSMetadata` is never constructed
[INFO] [stdout]   --> src/main.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | struct FSMetadata {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `FSMetadataError` is never used
[INFO] [stdout]   --> src/main.rs:52:6
[INFO] [stdout]    |
[INFO] [stdout] 52 | enum FSMetadataError {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `dec_free_ino_count` and `inc_free_ino_count` are never used
[INFO] [stdout]   --> src/main.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 56 | impl FSMetadata {
[INFO] [stdout]    | --------------- methods in this implementation
[INFO] [stdout] 57 |     fn dec_free_ino_count(&mut self) -> Result<(), FSMetadataError> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 71 |     fn inc_free_ino_count(&mut self) -> Result<(), FSMetadataError> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Block` is never constructed
[INFO] [stdout]   --> src/main.rs:87:8
[INFO] [stdout]    |
[INFO] [stdout] 87 | struct Block {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `BitMapError` is never used
[INFO] [stdout]   --> src/main.rs:92:6
[INFO] [stdout]    |
[INFO] [stdout] 92 | enum BitMapError {
[INFO] [stdout]    |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `FreeObjectBitmap` is never used
[INFO] [stdout]   --> src/main.rs:98:7
[INFO] [stdout]    |
[INFO] [stdout] 98 | trait FreeObjectBitmap<const N: usize> {
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FreeBlockBitmap` is never constructed
[INFO] [stdout]    --> src/main.rs:142:8
[INFO] [stdout]     |
[INFO] [stdout] 142 | struct FreeBlockBitmap {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Inode` is never constructed
[INFO] [stdout]    --> src/main.rs:165:8
[INFO] [stdout]     |
[INFO] [stdout] 165 | struct Inode {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `secs_from_unix_epoch` is never used
[INFO] [stdout]    --> src/main.rs:178:4
[INFO] [stdout]     |
[INFO] [stdout] 178 | fn secs_from_unix_epoch() -> i64 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `update_mtime` are never used
[INFO] [stdout]    --> src/main.rs:186:8
[INFO] [stdout]     |
[INFO] [stdout] 185 | impl Inode {
[INFO] [stdout]     | ---------- associated items in this implementation
[INFO] [stdout] 186 |     fn new(ino_id: u32, kind: FileType, perm: u16) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 201 |     fn update_mtime(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FreeInodeBitmap` is never constructed
[INFO] [stdout]    --> src/main.rs:206:8
[INFO] [stdout]     |
[INFO] [stdout] 206 | struct FreeInodeBitmap {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FSState` is never constructed
[INFO] [stdout]    --> src/main.rs:226:8
[INFO] [stdout]     |
[INFO] [stdout] 226 | struct FSState {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `InodeError` is never used
[INFO] [stdout]    --> src/main.rs:235:6
[INFO] [stdout]     |
[INFO] [stdout] 235 | enum InodeError {
[INFO] [stdout]     |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `alloc_inode`, and `free_inode` are never used
[INFO] [stdout]    --> src/main.rs:261:8
[INFO] [stdout]     |
[INFO] [stdout] 260 | impl FSState {
[INFO] [stdout]     | ------------ associated items in this implementation
[INFO] [stdout] 261 |     fn new(
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 277 |     fn alloc_inode(&mut self, kind: FileType, perm: u16) -> Result<u32, InodeError> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 295 |     fn free_inode(&mut self, ino_id: u32) -> Result<(), InodeError> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/main.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 58 |         if self.free_ino_count < 0 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling rusty-file-system v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Level`, `debug`, `info`, and `log_enabled`
[INFO] [stdout]  --> src/main.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use log::{debug, error, info, log_enabled, Level};
[INFO] [stdout]   |           ^^^^^         ^^^^  ^^^^^^^^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error`
[INFO] [stdout]  --> src/main.rs:5:16
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::{env, error};
[INFO] [stdout]   |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `blk_count`, `free_blk_count`, `super_blk_no`, and `wtime` are never read
[INFO] [stdout]   --> src/main.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | struct FSMetadata {
[INFO] [stdout]    |        ---------- fields in this struct
[INFO] [stdout] 28 |     ino_count: u32,
[INFO] [stdout] 29 |     blk_count: u32,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 30 |     free_blk_count: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 31 |     free_ino_count: u32,
[INFO] [stdout] 32 |     super_blk_no: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 33 |     mtime: u64,
[INFO] [stdout] 34 |     wtime: u64,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]   --> src/main.rs:88:5
[INFO] [stdout]    |
[INFO] [stdout] 87 | struct Block {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] 88 |     data: [u8; BLK_SIZE_BYTES as usize],
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Block` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `update_mtime` is never used
[INFO] [stdout]    --> src/main.rs:201:8
[INFO] [stdout]     |
[INFO] [stdout] 185 | impl Inode {
[INFO] [stdout]     | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 201 |     fn update_mtime(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `blk_bitmap` and `blks` are never read
[INFO] [stdout]    --> src/main.rs:230:5
[INFO] [stdout]     |
[INFO] [stdout] 226 | struct FSState {
[INFO] [stdout]     |        ------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 230 |     blk_bitmap: FreeBlockBitmap,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 231 |     blks: Box<[Option<Block>]>,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `InodeNotFound` is never constructed
[INFO] [stdout]    --> src/main.rs:237:5
[INFO] [stdout]     |
[INFO] [stdout] 235 | enum InodeError {
[INFO] [stdout]     |      ---------- variant in this enum
[INFO] [stdout] 236 |     NoFreeInodesOnAlloc,
[INFO] [stdout] 237 |     InodeNotFound,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `InodeError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/main.rs:261:8
[INFO] [stdout]     |
[INFO] [stdout] 260 | impl FSState {
[INFO] [stdout]     | ------------ associated function in this implementation
[INFO] [stdout] 261 |     fn new(
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/main.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 58 |         if self.free_ino_count < 0 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.76s
[INFO] running `Command { std: "docker" "inspect" "da07bca4fa8f470148c5eadd43c878cffef767202473a47addc43650295d7282", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da07bca4fa8f470148c5eadd43c878cffef767202473a47addc43650295d7282", kill_on_drop: false }`
[INFO] [stdout] da07bca4fa8f470148c5eadd43c878cffef767202473a47addc43650295d7282
[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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "test" "--frozen" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] ee4f4571260a844612cfbe9db3bee5c6c31b92959c7a1b752c8ec54f04757700
[INFO] running `Command { std: "docker" "start" "-a" "ee4f4571260a844612cfbe9db3bee5c6c31b92959c7a1b752c8ec54f04757700", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `Level`, `debug`, `info`, and `log_enabled`
[INFO] [stderr]  --> src/main.rs:3:11
[INFO] [stderr]   |
[INFO] [stderr] 3 | use log::{debug, error, info, log_enabled, Level};
[INFO] [stderr]   |           ^^^^^         ^^^^  ^^^^^^^^^^^  ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `error`
[INFO] [stderr]  --> src/main.rs:5:16
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::{env, error};
[INFO] [stderr]   |                ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `blk_count`, `free_blk_count`, `super_blk_no`, and `wtime` are never read
[INFO] [stderr]   --> src/main.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 27 | struct FSMetadata {
[INFO] [stderr]    |        ---------- fields in this struct
[INFO] [stderr] 28 |     ino_count: u32,
[INFO] [stderr] 29 |     blk_count: u32,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 30 |     free_blk_count: u32,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 31 |     free_ino_count: u32,
[INFO] [stderr] 32 |     super_blk_no: u32,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 33 |     mtime: u64,
[INFO] [stderr] 34 |     wtime: u64,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `data` is never read
[INFO] [stderr]   --> src/main.rs:88:5
[INFO] [stderr]    |
[INFO] [stderr] 87 | struct Block {
[INFO] [stderr]    |        ----- field in this struct
[INFO] [stderr] 88 |     data: [u8; BLK_SIZE_BYTES as usize],
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Block` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: method `update_mtime` is never used
[INFO] [stderr]    --> src/main.rs:201:8
[INFO] [stderr]     |
[INFO] [stderr] 185 | impl Inode {
[INFO] [stderr]     | ---------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 201 |     fn update_mtime(&mut self) {
[INFO] [stderr]     |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `blk_bitmap` and `blks` are never read
[INFO] [stderr]    --> src/main.rs:230:5
[INFO] [stderr]     |
[INFO] [stderr] 226 | struct FSState {
[INFO] [stderr]     |        ------- fields in this struct
[INFO] [stderr] ...
[INFO] [stderr] 230 |     blk_bitmap: FreeBlockBitmap,
[INFO] [stderr]     |     ^^^^^^^^^^
[INFO] [stderr] 231 |     blks: Box<[Option<Block>]>,
[INFO] [stderr]     |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant `InodeNotFound` is never constructed
[INFO] [stderr]    --> src/main.rs:237:5
[INFO] [stderr]     |
[INFO] [stderr] 235 | enum InodeError {
[INFO] [stderr]     |      ---------- variant in this enum
[INFO] [stderr] 236 |     NoFreeInodesOnAlloc,
[INFO] [stderr] 237 |     InodeNotFound,
[INFO] [stderr]     |     ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `InodeError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]    --> src/main.rs:261:8
[INFO] [stderr]     |
[INFO] [stderr] 260 | impl FSState {
[INFO] [stderr]     | ------------ associated function in this implementation
[INFO] [stderr] 261 |     fn new(
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]   --> src/main.rs:58:12
[INFO] [stderr]    |
[INFO] [stderr] 58 |         if self.free_ino_count < 0 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rusty-file-system` (bin "rusty-file-system" test) generated 9 warnings (run `cargo fix --bin "rusty-file-system" -p rusty-file-system --tests` to apply 2 suggestions)
[INFO] [stderr] warning: constant `FS_SIZE_BYTES` is never used
[INFO] [stderr]   --> src/main.rs:12:7
[INFO] [stderr]    |
[INFO] [stderr] 12 | const FS_SIZE_BYTES: u64 = 1u64 * (0b1 << 30) as u64; // 1 GB
[INFO] [stderr]    |       ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `BLK_SIZE_BYTES` is never used
[INFO] [stderr]   --> src/main.rs:13:7
[INFO] [stderr]    |
[INFO] [stderr] 13 | const BLK_SIZE_BYTES: u64 = 4096u64;
[INFO] [stderr]    |       ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `RESERVED_DATA_BLKS` is never used
[INFO] [stderr]   --> src/main.rs:15:7
[INFO] [stderr]    |
[INFO] [stderr] 15 | const RESERVED_DATA_BLKS: u32 = 3;
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `NUM_DATA_BLKS` is never used
[INFO] [stderr]   --> src/main.rs:16:7
[INFO] [stderr]    |
[INFO] [stderr] 16 | const NUM_DATA_BLKS: u32 = (FS_SIZE_BYTES / BLK_SIZE_BYTES) as u32;
[INFO] [stderr]    |       ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `FREE_BLK_BMAP_SIZE_BYTES` is never used
[INFO] [stderr]   --> src/main.rs:17:7
[INFO] [stderr]    |
[INFO] [stderr] 17 | const FREE_BLK_BMAP_SIZE_BYTES: usize = ((NUM_DATA_BLKS + 7) / 8) as usize;
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `MAX_NUM_INODES` is never used
[INFO] [stderr]   --> src/main.rs:20:7
[INFO] [stderr]    |
[INFO] [stderr] 20 | const MAX_NUM_INODES: u32 = 10;
[INFO] [stderr]    |       ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `RESERVED_INODES` is never used
[INFO] [stderr]   --> src/main.rs:21:7
[INFO] [stderr]    |
[INFO] [stderr] 21 | const RESERVED_INODES: u32 = 2; // 0: null inode, 1: root
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `FREE_INODE_BMAP_SIZE_BYTES` is never used
[INFO] [stderr]   --> src/main.rs:22:7
[INFO] [stderr]    |
[INFO] [stderr] 22 | const FREE_INODE_BMAP_SIZE_BYTES: usize = ((MAX_NUM_INODES + 7) / 8) as usize;
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `NUM_INO_DIRECT_PTR` is never used
[INFO] [stderr]   --> src/main.rs:23:7
[INFO] [stderr]    |
[INFO] [stderr] 23 | const NUM_INO_DIRECT_PTR: usize = 12;
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `INVALID_PTR` is never used
[INFO] [stderr]   --> src/main.rs:24:7
[INFO] [stderr]    |
[INFO] [stderr] 24 | const INVALID_PTR: u32 = 0;
[INFO] [stderr]    |       ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `FSMetadata` is never constructed
[INFO] [stderr]   --> src/main.rs:27:8
[INFO] [stderr]    |
[INFO] [stderr] 27 | struct FSMetadata {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `FSMetadataError` is never used
[INFO] [stderr]   --> src/main.rs:52:6
[INFO] [stderr]    |
[INFO] [stderr] 52 | enum FSMetadataError {
[INFO] [stderr]    |      ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `dec_free_ino_count` and `inc_free_ino_count` are never used
[INFO] [stderr]   --> src/main.rs:57:8
[INFO] [stderr]    |
[INFO] [stderr] 56 | impl FSMetadata {
[INFO] [stderr]    | --------------- methods in this implementation
[INFO] [stderr] 57 |     fn dec_free_ino_count(&mut self) -> Result<(), FSMetadataError> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 71 |     fn inc_free_ino_count(&mut self) -> Result<(), FSMetadataError> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Block` is never constructed
[INFO] [stderr]   --> src/main.rs:87:8
[INFO] [stderr]    |
[INFO] [stderr] 87 | struct Block {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `BitMapError` is never used
[INFO] [stderr]   --> src/main.rs:92:6
[INFO] [stderr]    |
[INFO] [stderr] 92 | enum BitMapError {
[INFO] [stdout] 
[INFO] [stderr]    |      ^^^^^^^^^^^
[INFO] [stdout] running 25 tests
[INFO] [stderr] 
[INFO] [stderr] warning: trait `FreeObjectBitmap` is never used
[INFO] [stderr]   --> src/main.rs:98:7
[INFO] [stderr]    |
[INFO] [stderr] 98 | trait FreeObjectBitmap<const N: usize> {
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `FreeBlockBitmap` is never constructed
[INFO] [stderr]    --> src/main.rs:142:8
[INFO] [stderr]     |
[INFO] [stderr] 142 | struct FreeBlockBitmap {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Inode` is never constructed
[INFO] [stderr]    --> src/main.rs:165:8
[INFO] [stderr]     |
[INFO] [stderr] 165 | struct Inode {
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `secs_from_unix_epoch` is never used
[INFO] [stderr]    --> src/main.rs:178:4
[INFO] [stderr]     |
[INFO] [stderr] 178 | fn secs_from_unix_epoch() -> i64 {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new` and `update_mtime` are never used
[INFO] [stderr]    --> src/main.rs:186:8
[INFO] [stderr]     |
[INFO] [stderr] 185 | impl Inode {
[INFO] [stderr]     | ---------- associated items in this implementation
[INFO] [stderr] 186 |     fn new(ino_id: u32, kind: FileType, perm: u16) -> Self {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 201 |     fn update_mtime(&mut self) {
[INFO] [stderr]     |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `FreeInodeBitmap` is never constructed
[INFO] [stderr]    --> src/main.rs:206:8
[INFO] [stderr]     |
[INFO] [stderr] 206 | struct FreeInodeBitmap {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `FSState` is never constructed
[INFO] [stderr]    --> src/main.rs:226:8
[INFO] [stderr]     |
[INFO] [stderr] 226 | struct FSState {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `InodeError` is never used
[INFO] [stderr]    --> src/main.rs:235:6
[INFO] [stderr]     |
[INFO] [stderr] 235 | enum InodeError {
[INFO] [stderr]     |      ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `alloc_inode`, and `free_inode` are never used
[INFO] [stderr]    --> src/main.rs:261:8
[INFO] [stderr]     |
[INFO] [stderr] 260 | impl FSState {
[INFO] [stderr]     | ------------ associated items in this implementation
[INFO] [stderr] 261 |     fn new(
[INFO] [stderr]     |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 277 |     fn alloc_inode(&mut self, kind: FileType, perm: u16) -> Result<u32, InodeError> {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 295 |     fn free_inode(&mut self, ino_id: u32) -> Result<(), InodeError> {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rusty-file-system` (bin "rusty-file-system") generated 27 warnings (3 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/build/rusty-file-system/a0b6d4a1f7e4822a/deps/rusty_file_system-a0b6d4a1f7e4822a)
[INFO] [stdout] test tests::test_find_first_free_returns_first_unreserved_index ... ok
[INFO] [stdout] test tests::test_free_block_bitmap_max ... ok
[INFO] [stdout] test tests::test_free_block_bitmap_set_alloc_and_free ... ok
[INFO] [stdout] test tests::test_find_first_free_skips_allocated_indices ... ok
[INFO] [stdout] test tests::test_find_first_free_returns_none_when_full ... ok
[INFO] [stdout] test tests::test_free_block_bitmap_find_first_free ... ok
[INFO] [stdout] test tests::test_set_alloc_fails_for_already_allocated_index ... ok
[INFO] [stdout] test tests::test_set_free_fails_for_index_beyond_max ... ok
[INFO] [stdout] test tests::test_set_alloc_fails_for_reserved_index ... ok
[INFO] [stdout] test tests::test_set_free_succeeds_for_valid_allocated_index ... ok
[INFO] [stdout] test tests::test_set_free_fails_for_reserved_index ... ok
[INFO] [stdout] test tests::test_set_alloc_succeeds_for_valid_free_index ... ok
[INFO] [stdout] test tests::test_set_alloc_fails_for_index_beyond_max ... ok
[INFO] [stdout] test tests::test_set_free_fails_for_already_free_index ... ok
[INFO] [stderr] error: test failed, to rerun pass `--bin rusty-file-system`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/rusty-file-system/a0b6d4a1f7e4822a/deps/rusty_file_system-a0b6d4a1f7e4822a` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "ee4f4571260a844612cfbe9db3bee5c6c31b92959c7a1b752c8ec54f04757700", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee4f4571260a844612cfbe9db3bee5c6c31b92959c7a1b752c8ec54f04757700", kill_on_drop: false }`
[INFO] [stdout] ee4f4571260a844612cfbe9db3bee5c6c31b92959c7a1b752c8ec54f04757700
