[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-2020-10-09 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLogoiLab%2Ffuc" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LogoiLab/fuc on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", 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-9/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-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lz4 v1.23.1
[INFO] [stderr]   Downloaded lz4-sys v1.8.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a52099d214604f40fe8228252a44db36f84cd5ebacf10143a4a69affb9ae8d64
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a52099d214604f40fe8228252a44db36f84cd5ebacf10143a4a69affb9ae8d64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a52099d214604f40fe8228252a44db36f84cd5ebacf10143a4a69affb9ae8d64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a52099d214604f40fe8228252a44db36f84cd5ebacf10143a4a69affb9ae8d64", kill_on_drop: false }`
[INFO] [stdout] a52099d214604f40fe8228252a44db36f84cd5ebacf10143a4a69affb9ae8d64
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 448a22a23bcd9f167655d3b45409cb27e0a024fc39f84ad2172b264ba9a5ac7a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "448a22a23bcd9f167655d3b45409cb27e0a024fc39f84ad2172b264ba9a5ac7a", kill_on_drop: false }`
[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 serde v1.0.87
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]    Compiling rustc-demangle v0.1.13
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling pulldown-cmark v0.2.0
[INFO] [stderr]    Compiling itoa v0.4.3
[INFO] [stderr]    Compiling same-file v1.0.4
[INFO] [stderr]    Compiling remove_dir_all v0.5.1
[INFO] [stderr]    Compiling bitflags v1.0.4
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling bytecount v0.4.0
[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]    Compiling walkdir v2.2.7
[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 semver v0.9.0
[INFO] [stderr]    Compiling serde_json v1.0.38
[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: `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: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 02s
[INFO] running `Command { std: "docker" "inspect" "448a22a23bcd9f167655d3b45409cb27e0a024fc39f84ad2172b264ba9a5ac7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "448a22a23bcd9f167655d3b45409cb27e0a024fc39f84ad2172b264ba9a5ac7a", kill_on_drop: false }`
[INFO] [stdout] 448a22a23bcd9f167655d3b45409cb27e0a024fc39f84ad2172b264ba9a5ac7a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d07f9b303e087af37946359b55568ae16733220568cbab165637b8031f714855
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d07f9b303e087af37946359b55568ae16733220568cbab165637b8031f714855", kill_on_drop: false }`
[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: `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: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `Command { std: "docker" "inspect" "d07f9b303e087af37946359b55568ae16733220568cbab165637b8031f714855", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d07f9b303e087af37946359b55568ae16733220568cbab165637b8031f714855", kill_on_drop: false }`
[INFO] [stdout] d07f9b303e087af37946359b55568ae16733220568cbab165637b8031f714855
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8cada919d66c86f1d22dfb4eed61c9cd594e89e8c0103f7cdc845b0668d4e62c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8cada919d66c86f1d22dfb4eed61c9cd594e89e8c0103f7cdc845b0668d4e62c", 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: `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: 18 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.20s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/fuc-53647569697cdf0e
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8cada919d66c86f1d22dfb4eed61c9cd594e89e8c0103f7cdc845b0668d4e62c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cada919d66c86f1d22dfb4eed61c9cd594e89e8c0103f7cdc845b0668d4e62c", kill_on_drop: false }`
[INFO] [stdout] 8cada919d66c86f1d22dfb4eed61c9cd594e89e8c0103f7cdc845b0668d4e62c
