[INFO] cloning repository https://github.com/emm312/rust-shell
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emm312/rust-shell" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femm312%2Frust-shell", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femm312%2Frust-shell'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5d81f13d58e73e78a910f61444d280af72d3c334
[INFO] testing emm312/rust-shell 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%2Femm312%2Frust-shell" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/emm312/rust-shell 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] removed /workspace/builds/worker-0/source/.cargo/config
[INFO] started tweaking git repo https://github.com/emm312/rust-shell
[INFO] finished tweaking git repo https://github.com/emm312/rust-shell
[INFO] tweaked toml for git repo https://github.com/emm312/rust-shell written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/emm312/rust-shell 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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] adb8eb37f005edfa8b712da092b722d813c200d3c9d7e07069876dea5a589e53
[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" "adb8eb37f005edfa8b712da092b722d813c200d3c9d7e07069876dea5a589e53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "adb8eb37f005edfa8b712da092b722d813c200d3c9d7e07069876dea5a589e53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adb8eb37f005edfa8b712da092b722d813c200d3c9d7e07069876dea5a589e53", kill_on_drop: false }`
[INFO] [stdout] adb8eb37f005edfa8b712da092b722d813c200d3c9d7e07069876dea5a589e53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5d3e83d94ec0a693495d84d072abee756a6ffcc53d2e23072742243d39468356
[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" "5d3e83d94ec0a693495d84d072abee756a6ffcc53d2e23072742243d39468356", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.90
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling rust-shell v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `filesystemobj` is never read
[INFO] [stdout]   --> src/main.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let mut filesystemobj = filesystemhandler::FileSystem::new("/".to_string());
[INFO] [stdout]    |             ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/main.rs:44:25
[INFO] [stdout]    |
[INFO] [stdout] 44 |                     let v = serde_json::to_string(&filesystemobj).unwrap();
[INFO] [stdout]    |                         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/main.rs:50:25
[INFO] [stdout]    |
[INFO] [stdout] 50 |                     let v = serde_json::to_string(&filesystemobj).unwrap();
[INFO] [stdout]    |                         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Folder`
[INFO] [stdout]   --> src/filesystemhandler.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | struct Folder<'a> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/filesystemhandler.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 |     fn new(name: &'a str)->Folder<'a> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_file`
[INFO] [stdout]   --> src/filesystemhandler.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn add_file(&mut self, file: &'a str){
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_folder`
[INFO] [stdout]   --> src/filesystemhandler.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn add_folder(&mut self, folder: &'a str) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `File`
[INFO] [stdout]   --> src/filesystemhandler.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | struct File<'a> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/filesystemhandler.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn new(name: &'a str, content: &'a str) -> File<'a> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         reset_json();
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |         io::stdout().flush();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.20s
[INFO] running `Command { std: "docker" "inspect" "5d3e83d94ec0a693495d84d072abee756a6ffcc53d2e23072742243d39468356", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d3e83d94ec0a693495d84d072abee756a6ffcc53d2e23072742243d39468356", kill_on_drop: false }`
[INFO] [stdout] 5d3e83d94ec0a693495d84d072abee756a6ffcc53d2e23072742243d39468356
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d4a59e6ee62ac9ea72947cfa6300b28a07a7074ca093b7ffe0b47387286ae90a
[INFO] running `Command { std: "docker" "start" "-a" "d4a59e6ee62ac9ea72947cfa6300b28a07a7074ca093b7ffe0b47387286ae90a", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-shell v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `filesystemobj` is never read
[INFO] [stdout]   --> src/main.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let mut filesystemobj = filesystemhandler::FileSystem::new("/".to_string());
[INFO] [stdout]    |             ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/main.rs:44:25
[INFO] [stdout]    |
[INFO] [stdout] 44 |                     let v = serde_json::to_string(&filesystemobj).unwrap();
[INFO] [stdout]    |                         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/main.rs:50:25
[INFO] [stdout]    |
[INFO] [stdout] 50 |                     let v = serde_json::to_string(&filesystemobj).unwrap();
[INFO] [stdout]    |                         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Folder`
[INFO] [stdout]   --> src/filesystemhandler.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | struct Folder<'a> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/filesystemhandler.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 |     fn new(name: &'a str)->Folder<'a> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_file`
[INFO] [stdout]   --> src/filesystemhandler.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn add_file(&mut self, file: &'a str){
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_folder`
[INFO] [stdout]   --> src/filesystemhandler.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn add_folder(&mut self, folder: &'a str) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `File`
[INFO] [stdout]   --> src/filesystemhandler.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | struct File<'a> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/filesystemhandler.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn new(name: &'a str, content: &'a str) -> File<'a> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         reset_json();
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |         io::stdout().flush();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.03s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_shell-69067a7fcff3aa84)
[INFO] running `Command { std: "docker" "inspect" "d4a59e6ee62ac9ea72947cfa6300b28a07a7074ca093b7ffe0b47387286ae90a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4a59e6ee62ac9ea72947cfa6300b28a07a7074ca093b7ffe0b47387286ae90a", kill_on_drop: false }`
[INFO] [stdout] d4a59e6ee62ac9ea72947cfa6300b28a07a7074ca093b7ffe0b47387286ae90a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bf502cb3a288194153df255ed1a3b9c75d02575f7b8951b5b4256761f7d5dc67
[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" "bf502cb3a288194153df255ed1a3b9c75d02575f7b8951b5b4256761f7d5dc67", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: value assigned to `filesystemobj` is never read
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/main.rs:14:13
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 14 |     let mut filesystemobj = filesystemhandler::FileSystem::new("/".to_string());
[INFO] [stdout] 
[INFO] [stderr]    |             ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]   --> src/main.rs:44:25
[INFO] [stderr]    |
[INFO] [stderr] 44 |                     let v = serde_json::to_string(&filesystemobj).unwrap();
[INFO] [stderr]    |                         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]   --> src/main.rs:50:25
[INFO] [stderr]    |
[INFO] [stderr] 50 |                     let v = serde_json::to_string(&filesystemobj).unwrap();
[INFO] [stderr]    |                         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Folder`
[INFO] [stderr]   --> src/filesystemhandler.rs:26:8
[INFO] [stderr]    |
[INFO] [stderr] 26 | struct Folder<'a> {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/filesystemhandler.rs:33:8
[INFO] [stderr]    |
[INFO] [stderr] 33 |     fn new(name: &'a str)->Folder<'a> {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `add_file`
[INFO] [stderr]   --> src/filesystemhandler.rs:40:8
[INFO] [stderr]    |
[INFO] [stderr] 40 |     fn add_file(&mut self, file: &'a str){
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `add_folder`
[INFO] [stderr]   --> src/filesystemhandler.rs:43:8
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn add_folder(&mut self, folder: &'a str) {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `File`
[INFO] [stderr]   --> src/filesystemhandler.rs:48:8
[INFO] [stderr]    |
[INFO] [stderr] 48 | struct File<'a> {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/filesystemhandler.rs:54:8
[INFO] [stderr]    |
[INFO] [stderr] 54 |     fn new(name: &'a str, content: &'a str) -> File<'a> {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/main.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |         reset_json();
[INFO] [stderr]    |         ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/main.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 |         io::stdout().flush();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-shell` (bin "rust-shell" test) generated 11 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_shell-69067a7fcff3aa84)
[INFO] running `Command { std: "docker" "inspect" "bf502cb3a288194153df255ed1a3b9c75d02575f7b8951b5b4256761f7d5dc67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf502cb3a288194153df255ed1a3b9c75d02575f7b8951b5b4256761f7d5dc67", kill_on_drop: false }`
[INFO] [stdout] bf502cb3a288194153df255ed1a3b9c75d02575f7b8951b5b4256761f7d5dc67