[INFO] cloning repository https://github.com/LogoiLab/fuc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LogoiLab/fuc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLogoiLab%2Ffuc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLogoiLab%2Ffuc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7f48c0e81ccb0e62d1c77709e56b567c150fffec
[INFO] testing LogoiLab/fuc against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLogoiLab%2Ffuc" "/workspace/builds/worker-18/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-18/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LogoiLab/fuc on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LogoiLab/fuc
[INFO] finished tweaking git repo https://github.com/LogoiLab/fuc
[INFO] tweaked toml for git repo https://github.com/LogoiLab/fuc written to /workspace/builds/worker-18/source/Cargo.toml
[INFO] crate git repo https://github.com/LogoiLab/fuc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ff2777fd1cde2dba300494b8460da4d58c3276cc957f5f10dc4cc381760f2088
[INFO] running `Command { std: "docker" "start" "-a" "ff2777fd1cde2dba300494b8460da4d58c3276cc957f5f10dc4cc381760f2088", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff2777fd1cde2dba300494b8460da4d58c3276cc957f5f10dc4cc381760f2088", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff2777fd1cde2dba300494b8460da4d58c3276cc957f5f10dc4cc381760f2088", kill_on_drop: false }`
[INFO] [stdout] ff2777fd1cde2dba300494b8460da4d58c3276cc957f5f10dc4cc381760f2088
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 093abd51a965bac9b34af16f5ca4efa0f867ae3671b7b9a01335f1fb8771e4a8
[INFO] running `Command { std: "docker" "start" "-a" "093abd51a965bac9b34af16f5ca4efa0f867ae3671b7b9a01335f1fb8771e4a8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cc v1.0.29
[INFO] [stderr]    Compiling libc v0.2.48
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling serde v1.0.87
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling rustc-demangle v0.1.13
[INFO] [stderr]    Compiling itoa v0.4.3
[INFO] [stderr]    Compiling pulldown-cmark v0.2.0
[INFO] [stderr]    Compiling same-file v1.0.4
[INFO] [stderr]    Compiling remove_dir_all v0.5.1
[INFO] [stderr]    Compiling bytecount v0.4.0
[INFO] [stderr]    Compiling walkdir v2.2.7
[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling lz4-sys v1.8.3
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling error-chain v0.12.0
[INFO] [stderr]    Compiling serde_derive v1.0.87
[INFO] [stderr]    Compiling serde_json v1.0.38
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling cargo_metadata v0.6.4
[INFO] [stderr]    Compiling skeptic v0.13.4
[INFO] [stderr]    Compiling lz4 v1.23.1
[INFO] [stderr]    Compiling fuc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `fuc::block::Block`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use fuc::block::Block;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/fuc/block.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |         unimplemented!();
[INFO] [stdout]    |         ---------------- any code following this expression is unreachable
[INFO] [stdout] 49 |         self.dirty = false;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/fuc/descriptor.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |         unimplemented!();
[INFO] [stdout]    |         ---------------- any code following this expression is unreachable
[INFO] [stdout] 61 |         self.dirty = false;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/fuc/fat.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |         unimplemented!();
[INFO] [stdout]    |         ---------------- any code following this expression is unreachable
[INFO] [stdout] 28 |         self.dirty = false;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/fuc/file.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |         unimplemented!();
[INFO] [stdout]    |         ---------------- any code following this expression is unreachable
[INFO] [stdout] 14 |         self.dirty = false;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/fuc/volume.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |         unimplemented!();
[INFO] [stdout]    |         ---------------- any code following this expression is unreachable
[INFO] [stdout] 19 |         self.dirty = false;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `writer`
[INFO] [stdout]   --> src/fuc/block.rs:47:29
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn write(&mut self, writer: Writer) -> Writer {
[INFO] [stdout]    |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_writer`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `writer`
[INFO] [stdout]   --> src/fuc/descriptor.rs:59:29
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub fn write(&mut self, writer: Writer) -> Writer {
[INFO] [stdout]    |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_writer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `writer`
[INFO] [stdout]   --> src/fuc/fat.rs:26:29
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn write(&mut self, writer: Writer) -> Writer {
[INFO] [stdout]    |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_writer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `writer`
[INFO] [stdout]   --> src/fuc/file.rs:12:29
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn write(&mut self, writer: Writer) -> Writer {
[INFO] [stdout]    |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_writer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `writer`
[INFO] [stdout]   --> src/fuc/volume.rs:17:29
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn write(&mut self, writer: Writer) -> Writer {
[INFO] [stdout]    |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_writer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `offset`
[INFO] [stdout]   --> src/fuc/block.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     offset: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `block_id`
[INFO] [stdout]  --> src/fuc/descriptor.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     block_id: [u8; 2],
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `FileDescriptor` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/fuc/descriptor.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(Clone)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `fdesc`
[INFO] [stdout]  --> src/fuc/fat.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fdesc: Vec<FileDescriptor>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `desc`
[INFO] [stdout]  --> src/fuc/file.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     desc: FileDescriptor,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `blocks`
[INFO] [stdout]  --> src/fuc/file.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     blocks: Vec<Block>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `magic`
[INFO] [stdout]   --> src/fuc/volume.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     magic: [u8; MAGIC_LENGTH],
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `fat`
[INFO] [stdout]   --> src/fuc/volume.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fat: FileAllocationTable,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `files`
[INFO] [stdout]   --> src/fuc/volume.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     files: Vec<File>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.83s
[INFO] running `Command { std: "docker" "inspect" "093abd51a965bac9b34af16f5ca4efa0f867ae3671b7b9a01335f1fb8771e4a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "093abd51a965bac9b34af16f5ca4efa0f867ae3671b7b9a01335f1fb8771e4a8", kill_on_drop: false }`
[INFO] [stdout] 093abd51a965bac9b34af16f5ca4efa0f867ae3671b7b9a01335f1fb8771e4a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 441d4d54d2e29176962706f77ea8555e43bed0a4ff9152637e4dbd41f516e7ec
[INFO] running `Command { std: "docker" "start" "-a" "441d4d54d2e29176962706f77ea8555e43bed0a4ff9152637e4dbd41f516e7ec", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling fuc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `fuc::block::Block`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use fuc::block::Block;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/fuc/block.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |         unimplemented!();
[INFO] [stdout]    |         ---------------- any code following this expression is unreachable
[INFO] [stdout] 49 |         self.dirty = false;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/fuc/descriptor.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |         unimplemented!();
[INFO] [stdout]    |         ---------------- any code following this expression is unreachable
[INFO] [stdout] 61 |         self.dirty = false;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/fuc/fat.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |         unimplemented!();
[INFO] [stdout]    |         ---------------- any code following this expression is unreachable
[INFO] [stdout] 28 |         self.dirty = false;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/fuc/file.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |         unimplemented!();
[INFO] [stdout]    |         ---------------- any code following this expression is unreachable
[INFO] [stdout] 14 |         self.dirty = false;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/fuc/volume.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |         unimplemented!();
[INFO] [stdout]    |         ---------------- any code following this expression is unreachable
[INFO] [stdout] 19 |         self.dirty = false;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `writer`
[INFO] [stdout]   --> src/fuc/block.rs:47:29
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn write(&mut self, writer: Writer) -> Writer {
[INFO] [stdout]    |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_writer`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `writer`
[INFO] [stdout]   --> src/fuc/descriptor.rs:59:29
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub fn write(&mut self, writer: Writer) -> Writer {
[INFO] [stdout]    |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_writer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `writer`
[INFO] [stdout]   --> src/fuc/fat.rs:26:29
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn write(&mut self, writer: Writer) -> Writer {
[INFO] [stdout]    |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_writer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `writer`
[INFO] [stdout]   --> src/fuc/file.rs:12:29
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn write(&mut self, writer: Writer) -> Writer {
[INFO] [stdout]    |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_writer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `writer`
[INFO] [stdout]   --> src/fuc/volume.rs:17:29
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn write(&mut self, writer: Writer) -> Writer {
[INFO] [stdout]    |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_writer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `offset`
[INFO] [stdout]   --> src/fuc/block.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     offset: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `block_id`
[INFO] [stdout]  --> src/fuc/descriptor.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     block_id: [u8; 2],
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `FileDescriptor` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/fuc/descriptor.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(Clone)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `fdesc`
[INFO] [stdout]  --> src/fuc/fat.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fdesc: Vec<FileDescriptor>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `desc`
[INFO] [stdout]  --> src/fuc/file.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     desc: FileDescriptor,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `blocks`
[INFO] [stdout]  --> src/fuc/file.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     blocks: Vec<Block>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `magic`
[INFO] [stdout]   --> src/fuc/volume.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     magic: [u8; MAGIC_LENGTH],
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `fat`
[INFO] [stdout]   --> src/fuc/volume.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fat: FileAllocationTable,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `files`
[INFO] [stdout]   --> src/fuc/volume.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     files: Vec<File>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.43s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/fuc-447c90c217bd223e)
[INFO] running `Command { std: "docker" "inspect" "441d4d54d2e29176962706f77ea8555e43bed0a4ff9152637e4dbd41f516e7ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "441d4d54d2e29176962706f77ea8555e43bed0a4ff9152637e4dbd41f516e7ec", kill_on_drop: false }`
[INFO] [stdout] 441d4d54d2e29176962706f77ea8555e43bed0a4ff9152637e4dbd41f516e7ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 03955a113dc9d1ec6e78934ed0260f8a97b6ac165b193c551e51af68981e7b4f
[INFO] running `Command { std: "docker" "start" "-a" "03955a113dc9d1ec6e78934ed0260f8a97b6ac165b193c551e51af68981e7b4f", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `fuc::block::Block`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use fuc::block::Block;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/fuc/block.rs:49:9
[INFO] [stderr]    |
[INFO] [stderr] 48 |         unimplemented!();
[INFO] [stderr]    |         ---------------- any code following this expression is unreachable
[INFO] [stderr] 49 |         self.dirty = false;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/fuc/descriptor.rs:61:9
[INFO] [stderr]    |
[INFO] [stderr] 60 |         unimplemented!();
[INFO] [stderr]    |         ---------------- any code following this expression is unreachable
[INFO] [stderr] 61 |         self.dirty = false;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/fuc/fat.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |         unimplemented!();
[INFO] [stderr]    |         ---------------- any code following this expression is unreachable
[INFO] [stderr] 28 |         self.dirty = false;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/fuc/file.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |         unimplemented!();
[INFO] [stderr]    |         ---------------- any code following this expression is unreachable
[INFO] [stderr] 14 |         self.dirty = false;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/fuc/volume.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 18 |         unimplemented!();
[INFO] [stderr]    |         ---------------- any code following this expression is unreachable
[INFO] [stderr] 19 |         self.dirty = false;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `writer`
[INFO] [stderr]   --> src/fuc/block.rs:47:29
[INFO] [stderr]    |
[INFO] [stderr] 47 |     pub fn write(&mut self, writer: Writer) -> Writer {
[INFO] [stderr]    |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_writer`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `writer`
[INFO] [stderr]   --> src/fuc/descriptor.rs:59:29
[INFO] [stderr]    |
[INFO] [stderr] 59 |     pub fn write(&mut self, writer: Writer) -> Writer {
[INFO] [stderr]    |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_writer`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `writer`
[INFO] [stderr]   --> src/fuc/fat.rs:26:29
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn write(&mut self, writer: Writer) -> Writer {
[INFO] [stderr]    |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_writer`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `writer`
[INFO] [stderr]   --> src/fuc/file.rs:12:29
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub fn write(&mut self, writer: Writer) -> Writer {
[INFO] [stderr]    |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_writer`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `writer`
[INFO] [stderr]   --> src/fuc/volume.rs:17:29
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn write(&mut self, writer: Writer) -> Writer {
[INFO] [stderr]    |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_writer`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `offset`
[INFO] [stderr]   --> src/fuc/block.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     offset: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `block_id`
[INFO] [stderr]  --> src/fuc/descriptor.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     block_id: [u8; 2],
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: `FileDescriptor` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]  --> src/fuc/descriptor.rs:5:10
[INFO] [stderr]   |
[INFO] [stderr] 5 | #[derive(Clone)]
[INFO] [stderr]   |          ^^^^^
[INFO] [stderr]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `fdesc`
[INFO] [stderr]  --> src/fuc/fat.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     fdesc: Vec<FileDescriptor>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `desc`
[INFO] [stderr]  --> src/fuc/file.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     desc: FileDescriptor,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `blocks`
[INFO] [stderr]  --> src/fuc/file.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     blocks: Vec<Block>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `magic`
[INFO] [stderr]   --> src/fuc/volume.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     magic: [u8; MAGIC_LENGTH],
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `fat`
[INFO] [stderr]   --> src/fuc/volume.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fat: FileAllocationTable,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `files`
[INFO] [stderr]   --> src/fuc/volume.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     files: Vec<File>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `fuc` (bin "fuc" test) generated 19 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/fuc-447c90c217bd223e)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "03955a113dc9d1ec6e78934ed0260f8a97b6ac165b193c551e51af68981e7b4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03955a113dc9d1ec6e78934ed0260f8a97b6ac165b193c551e51af68981e7b4f", kill_on_drop: false }`
[INFO] [stdout] 03955a113dc9d1ec6e78934ed0260f8a97b6ac165b193c551e51af68981e7b4f