[INFO] cloning repository https://github.com/ShahriyarShawon/disk-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/ShahriyarShawon/disk-file-system" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShahriyarShawon%2Fdisk-file-system", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShahriyarShawon%2Fdisk-file-system'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 949bb92b5a82bbbcc1d39128346a5f607184fcdd
[INFO] testing ShahriyarShawon/disk-file-system against master#ec6f9a5b4413f74386267ef8efc93712c2ce6db6 for pr-155739
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShahriyarShawon%2Fdisk-file-system" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ShahriyarShawon/disk-file-system
[INFO] finished tweaking git repo https://github.com/ShahriyarShawon/disk-file-system
[INFO] tweaked toml for git repo https://github.com/ShahriyarShawon/disk-file-system written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ShahriyarShawon/disk-file-system on toolchain ec6f9a5b4413f74386267ef8efc93712c2ce6db6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ShahriyarShawon/disk-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" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded array-init v2.1.0
[INFO] [stderr]   Downloaded binrw v0.15.1
[INFO] [stderr]   Downloaded owo-colors v4.3.0
[INFO] [stderr]   Downloaded binrw_derive v0.15.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 07eebcd62ec6ff94f7b5448e115fef973d96379a162c306ea3dcc6f2a696b957
[INFO] running `Command { std: "docker" "start" "-a" "07eebcd62ec6ff94f7b5448e115fef973d96379a162c306ea3dcc6f2a696b957", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07eebcd62ec6ff94f7b5448e115fef973d96379a162c306ea3dcc6f2a696b957", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07eebcd62ec6ff94f7b5448e115fef973d96379a162c306ea3dcc6f2a696b957", kill_on_drop: false }`
[INFO] [stdout] 07eebcd62ec6ff94f7b5448e115fef973d96379a162c306ea3dcc6f2a696b957
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca630d0f2a7377f9496e1de447e998e3880f7f2b69a5afd816a62cf9fd07e0db
[INFO] running `Command { std: "docker" "start" "-a" "ca630d0f2a7377f9496e1de447e998e3880f7f2b69a5afd816a62cf9fd07e0db", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling owo-colors v4.3.0
[INFO] [stderr]    Compiling binrw_derive v0.15.1
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling binrw v0.15.1
[INFO] [stderr]    Compiling bytemuck v1.25.0
[INFO] [stderr]    Compiling array-init v2.1.0
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling disk-file-system v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]   --> src/dfs.rs:82:29
[INFO] [stdout]    |
[INFO] [stdout] 82 |     fn traverse_path(&self, tokens: &[&str]) -> Result<u16, FSError> {
[INFO] [stdout]    |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fname`
[INFO] [stdout]    --> src/dfs.rs:183:20
[INFO] [stdout]     |
[INFO] [stdout] 183 |     fn read(&self, fname: &str) {
[INFO] [stdout]     |                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_fname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SUPERBLOCK_SIZE` is never used
[INFO] [stdout]  --> src/dfs.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | const SUPERBLOCK_SIZE: usize = std::mem::size_of::<SuperBlock>();
[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 `INODE_PER_BLOCK` is never used
[INFO] [stdout]   --> src/dfs.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | const INODE_PER_BLOCK: usize = BLOCK_SIZE as usize / INODE_SIZE;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cwd` is never read
[INFO] [stdout]   --> src/dfs.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub struct FSController {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 37 |     cwd: u16
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/dfs.rs:82:8
[INFO] [stdout]     |
[INFO] [stdout]  40 | impl FSController {
[INFO] [stdout]     | ----------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  82 |     fn traverse_path(&self, tokens: &[&str]) -> Result<u16, FSError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  92 |     fn create_file(&mut self, name: String) -> Result<u16, FSError> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 142 |     fn write() {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 155 |     fn stat() {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 161 |     fn rename() {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 168 |     fn rmdir() {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 175 |     fn delete_file() {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 183 |     fn read(&self, fname: &str) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 217 |     fn mark_inode_as_used(&mut self, inode_num: &u16) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 247 |     fn get_next_free_inode(&mut self) -> Result<u16, FSError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.22s
[INFO] running `Command { std: "docker" "inspect" "ca630d0f2a7377f9496e1de447e998e3880f7f2b69a5afd816a62cf9fd07e0db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca630d0f2a7377f9496e1de447e998e3880f7f2b69a5afd816a62cf9fd07e0db", kill_on_drop: false }`
[INFO] [stdout] ca630d0f2a7377f9496e1de447e998e3880f7f2b69a5afd816a62cf9fd07e0db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a352370d903b8298499168b594b48fd2fafc32f6109e1dd30b390bf01c28d074
[INFO] running `Command { std: "docker" "start" "-a" "a352370d903b8298499168b594b48fd2fafc32f6109e1dd30b390bf01c28d074", kill_on_drop: false }`
[INFO] [stderr]    Compiling disk-file-system v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]   --> src/dfs.rs:82:29
[INFO] [stdout]    |
[INFO] [stdout] 82 |     fn traverse_path(&self, tokens: &[&str]) -> Result<u16, FSError> {
[INFO] [stdout]    |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fname`
[INFO] [stdout]    --> src/dfs.rs:183:20
[INFO] [stdout]     |
[INFO] [stdout] 183 |     fn read(&self, fname: &str) {
[INFO] [stdout]     |                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_fname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SUPERBLOCK_SIZE` is never used
[INFO] [stdout]  --> src/dfs.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | const SUPERBLOCK_SIZE: usize = std::mem::size_of::<SuperBlock>();
[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 `INODE_PER_BLOCK` is never used
[INFO] [stdout]   --> src/dfs.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | const INODE_PER_BLOCK: usize = BLOCK_SIZE as usize / INODE_SIZE;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cwd` is never read
[INFO] [stdout]   --> src/dfs.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub struct FSController {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 37 |     cwd: u16
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/dfs.rs:82:8
[INFO] [stdout]     |
[INFO] [stdout]  40 | impl FSController {
[INFO] [stdout]     | ----------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  82 |     fn traverse_path(&self, tokens: &[&str]) -> Result<u16, FSError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  92 |     fn create_file(&mut self, name: String) -> Result<u16, FSError> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 142 |     fn write() {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 155 |     fn stat() {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 161 |     fn rename() {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 168 |     fn rmdir() {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 175 |     fn delete_file() {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 183 |     fn read(&self, fname: &str) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 217 |     fn mark_inode_as_used(&mut self, inode_num: &u16) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 247 |     fn get_next_free_inode(&mut self) -> Result<u16, FSError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "a352370d903b8298499168b594b48fd2fafc32f6109e1dd30b390bf01c28d074", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a352370d903b8298499168b594b48fd2fafc32f6109e1dd30b390bf01c28d074", kill_on_drop: false }`
[INFO] [stdout] a352370d903b8298499168b594b48fd2fafc32f6109e1dd30b390bf01c28d074
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 885c2090243a2b0c586ef7ebc178bf002dfd80eb1193a9daf7200fea8fd4fad3
[INFO] running `Command { std: "docker" "start" "-a" "885c2090243a2b0c586ef7ebc178bf002dfd80eb1193a9daf7200fea8fd4fad3", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `tokens`
[INFO] [stderr]   --> src/dfs.rs:82:29
[INFO] [stderr]    |
[INFO] [stderr] 82 |     fn traverse_path(&self, tokens: &[&str]) -> Result<u16, FSError> {
[INFO] [stderr]    |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `fname`
[INFO] [stderr]    --> src/dfs.rs:183:20
[INFO] [stderr]     |
[INFO] [stderr] 183 |     fn read(&self, fname: &str) {
[INFO] [stderr]     |                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_fname`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `SUPERBLOCK_SIZE` is never used
[INFO] [stderr]  --> src/dfs.rs:8:7
[INFO] [stderr]   |
[INFO] [stderr] 8 | const SUPERBLOCK_SIZE: usize = std::mem::size_of::<SuperBlock>();
[INFO] [stderr]   |       ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `INODE_PER_BLOCK` is never used
[INFO] [stderr]   --> src/dfs.rs:10:7
[INFO] [stderr]    |
[INFO] [stderr] 10 | const INODE_PER_BLOCK: usize = BLOCK_SIZE as usize / INODE_SIZE;
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `cwd` is never read
[INFO] [stderr]   --> src/dfs.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 34 | pub struct FSController {
[INFO] [stderr]    |            ------------ field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 37 |     cwd: u16
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: multiple associated items are never used
[INFO] [stderr]    --> src/dfs.rs:82:8
[INFO] [stderr]     |
[INFO] [stderr]  40 | impl FSController {
[INFO] [stderr]     | ----------------- associated items in this implementation
[INFO] [stderr] ...
[INFO] [stderr]  82 |     fn traverse_path(&self, tokens: &[&str]) -> Result<u16, FSError> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr]  92 |     fn create_file(&mut self, name: String) -> Result<u16, FSError> {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 142 |     fn write() {
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 155 |     fn stat() {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 161 |     fn rename() {
[INFO] [stderr]     |        ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 168 |     fn rmdir() {
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 175 |     fn delete_file() {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 183 |     fn read(&self, fname: &str) {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 217 |     fn mark_inode_as_used(&mut self, inode_num: &u16) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 247 |     fn get_next_free_inode(&mut self) -> Result<u16, FSError> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `disk-file-system` (bin "disk-file-system" test) generated 6 warnings (run `cargo fix --bin "disk-file-system" -p disk-file-system --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/disk_file_system-3c7128e7d0037692)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test dfs::tests::fs_instantiation_confirmation ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- dfs::tests::fs_instantiation_confirmation stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'dfs::tests::fs_instantiation_confirmation' (18) panicked at src/dfs.rs:44:25:
[INFO] [stdout] couldnt open ./TESTFS: No such file or directory (os error 2)
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x64c4769da32a - std[29689e6404d28ef9]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x64c4769da32a - std[29689e6404d28ef9]::backtrace_rs::backtrace::trace_unsynchronized::<std[29689e6404d28ef9]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x64c4769da32a - std[29689e6404d28ef9]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x64c4769da32a - <<std[29689e6404d28ef9]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[e929cb53b82a81ca]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x64c4769ee36a - <core[e929cb53b82a81ca]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x64c4769ee36a - core[e929cb53b82a81ca]::fmt::write
[INFO] [stdout]    6:     0x64c4769dec72 - std[29689e6404d28ef9]::io::default_write_fmt::<alloc[9d7caffeb3b5d2c6]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/io/mod.rs:621:11
[INFO] [stdout]    7:     0x64c4769dec72 - <alloc[9d7caffeb3b5d2c6]::vec::Vec<u8> as std[29689e6404d28ef9]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/io/mod.rs:1976:13
[INFO] [stdout]    8:     0x64c4769b91cf - <std[29689e6404d28ef9]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x64c4769b91cf - std[29689e6404d28ef9]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x64c4769d26d9 - std[29689e6404d28ef9]::panicking::default_hook
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x64c476966b9c - <alloc[9d7caffeb3b5d2c6]::boxed::Box<dyn for<'a, 'b> core[e929cb53b82a81ca]::ops::function::Fn<(&'a std[29689e6404d28ef9]::panic::PanicHookInfo<'b>,), Output = ()> + core[e929cb53b82a81ca]::marker::Send + core[e929cb53b82a81ca]::marker::Sync> as core[e929cb53b82a81ca]::ops::function::Fn<(&std[29689e6404d28ef9]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/alloc/src/boxed.rs:2285:9
[INFO] [stdout]   12:     0x64c476966b9c - test[a24b3028667022f7]::test_main_inner::<test[a24b3028667022f7]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/test/src/lib.rs:155:21
[INFO] [stdout]   13:     0x64c4769d2892 - <alloc[9d7caffeb3b5d2c6]::boxed::Box<dyn for<'a, 'b> core[e929cb53b82a81ca]::ops::function::Fn<(&'a std[29689e6404d28ef9]::panic::PanicHookInfo<'b>,), Output = ()> + core[e929cb53b82a81ca]::marker::Send + core[e929cb53b82a81ca]::marker::Sync> as core[e929cb53b82a81ca]::ops::function::Fn<(&std[29689e6404d28ef9]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/alloc/src/boxed.rs:2285:9
[INFO] [stdout]   14:     0x64c4769d2892 - std[29689e6404d28ef9]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x64c4769b9288 - std[29689e6404d28ef9]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x64c4769ae3e9 - std[29689e6404d28ef9]::sys::backtrace::__rust_end_short_backtrace::<std[29689e6404d28ef9]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x64c4769b9f9d - __rustc[3aed6af316653e63]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x64c4769eeabc - core[e929cb53b82a81ca]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x64c476957c75 - <disk_file_system[1d2ec3a0583e8fc2]::dfs::FSController>::new
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dfs.rs:44:25
[INFO] [stdout]   20:     0x64c476958806 - disk_file_system[1d2ec3a0583e8fc2]::dfs::tests::fs_instantiation_confirmation
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dfs.rs:446:34
[INFO] [stdout]   21:     0x64c476956fb7 - disk_file_system[1d2ec3a0583e8fc2]::dfs::tests::fs_instantiation_confirmation::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dfs.rs:439:39
[INFO] [stdout]   22:     0x64c476951a46 - <disk_file_system[1d2ec3a0583e8fc2]::dfs::tests::fs_instantiation_confirmation::{closure#0} as core[e929cb53b82a81ca]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x64c476959e7b - <fn() -> core[e929cb53b82a81ca]::result::Result<(), alloc[9d7caffeb3b5d2c6]::string::String> as core[e929cb53b82a81ca]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x64c476959e7b - test[a24b3028667022f7]::__rust_begin_short_backtrace::<core[e929cb53b82a81ca]::result::Result<(), alloc[9d7caffeb3b5d2c6]::string::String>, fn() -> core[e929cb53b82a81ca]::result::Result<(), alloc[9d7caffeb3b5d2c6]::string::String>>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/test/src/lib.rs:724:18
[INFO] [stdout]   25:     0x64c47696766b - test[a24b3028667022f7]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/test/src/lib.rs:747:74
[INFO] [stdout]   26:     0x64c47696766b - <core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<test[a24b3028667022f7]::run_test_in_process::{closure#0}> as core[e929cb53b82a81ca]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   27:     0x64c47696766b - std[29689e6404d28ef9]::panicking::catch_unwind::do_call::<core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<test[a24b3028667022f7]::run_test_in_process::{closure#0}>, core[e929cb53b82a81ca]::result::Result<(), alloc[9d7caffeb3b5d2c6]::string::String>>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:581:40
[INFO] [stdout]   28:     0x64c47696766b - std[29689e6404d28ef9]::panicking::catch_unwind::<core[e929cb53b82a81ca]::result::Result<(), alloc[9d7caffeb3b5d2c6]::string::String>, core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<test[a24b3028667022f7]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:544:19
[INFO] [stdout]   29:     0x64c47696766b - std[29689e6404d28ef9]::panic::catch_unwind::<core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<test[a24b3028667022f7]::run_test_in_process::{closure#0}>, core[e929cb53b82a81ca]::result::Result<(), alloc[9d7caffeb3b5d2c6]::string::String>>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panic.rs:359:14
[INFO] [stdout]   30:     0x64c47696766b - test[a24b3028667022f7]::run_test_in_process
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/test/src/lib.rs:747:27
[INFO] [stdout]   31:     0x64c47696766b - test[a24b3028667022f7]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/test/src/lib.rs:668:43
[INFO] [stdout]   32:     0x64c476960d84 - test[a24b3028667022f7]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/test/src/lib.rs:698:41
[INFO] [stdout]   33:     0x64c476960d84 - std[29689e6404d28ef9]::sys::backtrace::__rust_begin_short_backtrace::<test[a24b3028667022f7]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   34:     0x64c47696a272 - std[29689e6404d28ef9]::thread::lifecycle::spawn_unchecked::<test[a24b3028667022f7]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/thread/lifecycle.rs:70:13
[INFO] [stdout]   35:     0x64c47696a272 - <core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<std[29689e6404d28ef9]::thread::lifecycle::spawn_unchecked<test[a24b3028667022f7]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[e929cb53b82a81ca]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   36:     0x64c47696a272 - std[29689e6404d28ef9]::panicking::catch_unwind::do_call::<core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<std[29689e6404d28ef9]::thread::lifecycle::spawn_unchecked<test[a24b3028667022f7]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:581:40
[INFO] [stdout]   37:     0x64c47696a272 - std[29689e6404d28ef9]::panicking::catch_unwind::<(), core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<std[29689e6404d28ef9]::thread::lifecycle::spawn_unchecked<test[a24b3028667022f7]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:544:19
[INFO] [stdout]   38:     0x64c47696a272 - std[29689e6404d28ef9]::panic::catch_unwind::<core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<std[29689e6404d28ef9]::thread::lifecycle::spawn_unchecked<test[a24b3028667022f7]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panic.rs:359:14
[INFO] [stdout]   39:     0x64c47696a272 - std[29689e6404d28ef9]::thread::lifecycle::spawn_unchecked::<test[a24b3028667022f7]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/thread/lifecycle.rs:68:26
[INFO] [stdout]   40:     0x64c47696a272 - <std[29689e6404d28ef9]::thread::lifecycle::spawn_unchecked<test[a24b3028667022f7]::run_test::{closure#1}, ()>::{closure#1} as core[e929cb53b82a81ca]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   41:     0x64c4769d9c3f - <alloc[9d7caffeb3b5d2c6]::boxed::Box<dyn core[e929cb53b82a81ca]::ops::function::FnOnce<(), Output = ()> + core[e929cb53b82a81ca]::marker::Send> as core[e929cb53b82a81ca]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/alloc/src/boxed.rs:2271:9
[INFO] [stdout]   42:     0x64c4769d9c3f - <std[29689e6404d28ef9]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/sys/thread/unix.rs:118:17
[INFO] [stdout]   43:     0x71bae648baa4 - <unknown>
[INFO] [stdout]   44:     0x71bae6518a64 - clone
[INFO] [stdout]   45:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     dfs::tests::fs_instantiation_confirmation
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin disk-file-system`
[INFO] running `Command { std: "docker" "inspect" "885c2090243a2b0c586ef7ebc178bf002dfd80eb1193a9daf7200fea8fd4fad3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "885c2090243a2b0c586ef7ebc178bf002dfd80eb1193a9daf7200fea8fd4fad3", kill_on_drop: false }`
[INFO] [stdout] 885c2090243a2b0c586ef7ebc178bf002dfd80eb1193a9daf7200fea8fd4fad3
