[INFO] cloning repository https://github.com/AskePit/sillyFS
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AskePit/sillyFS" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAskePit%2FsillyFS", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAskePit%2FsillyFS'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ce4304052dfaab1878a943c4dd2b26637dd0f50f
[INFO] checking AskePit/sillyFS against master#36b21637e93b038453924d3c66821089e71d8baa for pr-143164
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAskePit%2FsillyFS" "/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/AskePit/sillyFS
[INFO] finished tweaking git repo https://github.com/AskePit/sillyFS
[INFO] tweaked toml for git repo https://github.com/AskePit/sillyFS written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/AskePit/sillyFS on toolchain 36b21637e93b038453924d3c66821089e71d8baa
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36b21637e93b038453924d3c66821089e71d8baa" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/AskePit/sillyFS 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" "+36b21637e93b038453924d3c66821089e71d8baa" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+36b21637e93b038453924d3c66821089e71d8baa" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 80799f39a02ed1bf0d868238d751a99b740e94973087a2b6f89c307273f60b0b
[INFO] running `Command { std: "docker" "start" "-a" "80799f39a02ed1bf0d868238d751a99b740e94973087a2b6f89c307273f60b0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "80799f39a02ed1bf0d868238d751a99b740e94973087a2b6f89c307273f60b0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80799f39a02ed1bf0d868238d751a99b740e94973087a2b6f89c307273f60b0b", kill_on_drop: false }`
[INFO] [stdout] 80799f39a02ed1bf0d868238d751a99b740e94973087a2b6f89c307273f60b0b
[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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+36b21637e93b038453924d3c66821089e71d8baa" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] efc2d74970633d16e9a4d2d0afecd6eaed9dc8f9e4aa378ea981d6cff13f6d26
[INFO] running `Command { std: "docker" "start" "-a" "efc2d74970633d16e9a4d2d0afecd6eaed9dc8f9e4aa378ea981d6cff13f6d26", kill_on_drop: false }`
[INFO] [stderr]     Checking silly-fs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io::Read`
[INFO] [stdout]  --> src/fs.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::Read;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `data_slice` is never read
[INFO] [stdout]   --> src/fs.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |         data_slice = &data_slice[2..];
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/fs.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 57 |         for i in 0..dirs_size {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `header`
[INFO] [stdout]   --> src/fs.rs:69:17
[INFO] [stdout]    |
[INFO] [stdout] 69 |     pub fn save(header: &Header, file_name: &Path) {
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_header`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file_name`
[INFO] [stdout]   --> src/fs.rs:69:34
[INFO] [stdout]    |
[INFO] [stdout] 69 |     pub fn save(header: &Header, file_name: &Path) {
[INFO] [stdout]    |                                  ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Version` is never used
[INFO] [stdout]  --> src/fs.rs:5:6
[INFO] [stdout]   |
[INFO] [stdout] 5 | type Version = u32;
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Size` is never used
[INFO] [stdout]  --> src/fs.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | type Size = u64;
[INFO] [stdout]   |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Count` is never used
[INFO] [stdout]  --> src/fs.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | type Count = u16;
[INFO] [stdout]   |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `NameSize` is never used
[INFO] [stdout]  --> src/fs.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | type NameSize = u8;
[INFO] [stdout]   |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Id` is never used
[INFO] [stdout]  --> src/fs.rs:9:6
[INFO] [stdout]   |
[INFO] [stdout] 9 | type Id = Count;
[INFO] [stdout]   |      ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FileSystem` is never constructed
[INFO] [stdout]   --> src/fs.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct FileSystem {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Dir` is never constructed
[INFO] [stdout]   --> src/fs.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Dir {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ClusterLoc` is never constructed
[INFO] [stdout]   --> src/fs.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct ClusterLoc {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `File` is never constructed
[INFO] [stdout]   --> src/fs.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | struct File {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Header` is never constructed
[INFO] [stdout]   --> src/fs.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub struct Header {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `load`, `save`, `read_u16`, `read_u32`, and `read_u64` are never used
[INFO] [stdout]   --> src/fs.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 42 | impl Header {
[INFO] [stdout]    | ----------- associated functions in this implementation
[INFO] [stdout] 43 |     pub fn load(file_name: &Path) -> Result<Header, io::Error> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |     pub fn save(header: &Header, file_name: &Path) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 73 |     fn read_u16(data: &[u8]) -> io::Result<u16> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 77 |     fn read_u32(data: &[u8]) -> io::Result<u32> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 81 |     fn read_u64(data: &[u8]) -> io::Result<u64> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Read`
[INFO] [stdout]  --> src/fs.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::Read;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `data_slice` is never read
[INFO] [stdout]   --> src/fs.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |         data_slice = &data_slice[2..];
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/fs.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 57 |         for i in 0..dirs_size {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `header`
[INFO] [stdout]   --> src/fs.rs:69:17
[INFO] [stdout]    |
[INFO] [stdout] 69 |     pub fn save(header: &Header, file_name: &Path) {
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_header`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file_name`
[INFO] [stdout]   --> src/fs.rs:69:34
[INFO] [stdout]    |
[INFO] [stdout] 69 |     pub fn save(header: &Header, file_name: &Path) {
[INFO] [stdout]    |                                  ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Version` is never used
[INFO] [stdout]  --> src/fs.rs:5:6
[INFO] [stdout]   |
[INFO] [stdout] 5 | type Version = u32;
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Size` is never used
[INFO] [stdout]  --> src/fs.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | type Size = u64;
[INFO] [stdout]   |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Count` is never used
[INFO] [stdout]  --> src/fs.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | type Count = u16;
[INFO] [stdout]   |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `NameSize` is never used
[INFO] [stdout]  --> src/fs.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | type NameSize = u8;
[INFO] [stdout]   |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Id` is never used
[INFO] [stdout]  --> src/fs.rs:9:6
[INFO] [stdout]   |
[INFO] [stdout] 9 | type Id = Count;
[INFO] [stdout]   |      ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FileSystem` is never constructed
[INFO] [stdout]   --> src/fs.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct FileSystem {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Dir` is never constructed
[INFO] [stdout]   --> src/fs.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Dir {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ClusterLoc` is never constructed
[INFO] [stdout]   --> src/fs.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct ClusterLoc {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `File` is never constructed
[INFO] [stdout]   --> src/fs.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | struct File {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Header` is never constructed
[INFO] [stdout]   --> src/fs.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub struct Header {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `load`, `save`, `read_u16`, `read_u32`, and `read_u64` are never used
[INFO] [stdout]   --> src/fs.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 42 | impl Header {
[INFO] [stdout]    | ----------- associated functions in this implementation
[INFO] [stdout] 43 |     pub fn load(file_name: &Path) -> Result<Header, io::Error> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |     pub fn save(header: &Header, file_name: &Path) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 73 |     fn read_u16(data: &[u8]) -> io::Result<u16> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 77 |     fn read_u32(data: &[u8]) -> io::Result<u32> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 81 |     fn read_u64(data: &[u8]) -> io::Result<u64> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "efc2d74970633d16e9a4d2d0afecd6eaed9dc8f9e4aa378ea981d6cff13f6d26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efc2d74970633d16e9a4d2d0afecd6eaed9dc8f9e4aa378ea981d6cff13f6d26", kill_on_drop: false }`
[INFO] [stdout] efc2d74970633d16e9a4d2d0afecd6eaed9dc8f9e4aa378ea981d6cff13f6d26
