[INFO] cloning repository https://github.com/Asutos-Zhang/jvmgr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Asutos-Zhang/jvmgr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAsutos-Zhang%2Fjvmgr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAsutos-Zhang%2Fjvmgr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 48a3116473f0004753336b015a8709e9e794eb68
[INFO] checking Asutos-Zhang/jvmgr/48a3116473f0004753336b015a8709e9e794eb68 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAsutos-Zhang%2Fjvmgr" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Asutos-Zhang/jvmgr on toolchain 4d98531622e1718ae0bc3c7a1ab9cd8938428452
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Asutos-Zhang/jvmgr
[INFO] finished tweaking git repo https://github.com/Asutos-Zhang/jvmgr
[INFO] tweaked toml for git repo https://github.com/Asutos-Zhang/jvmgr written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Asutos-Zhang/jvmgr 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" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3fa173354b5a68a3064893a92418de4560e1e9e2c4a44a38e413b07c71a3c2ca
[INFO] running `Command { std: "docker" "start" "-a" "3fa173354b5a68a3064893a92418de4560e1e9e2c4a44a38e413b07c71a3c2ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3fa173354b5a68a3064893a92418de4560e1e9e2c4a44a38e413b07c71a3c2ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fa173354b5a68a3064893a92418de4560e1e9e2c4a44a38e413b07c71a3c2ca", kill_on_drop: false }`
[INFO] [stdout] 3fa173354b5a68a3064893a92418de4560e1e9e2c4a44a38e413b07c71a3c2ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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 -Dtail_expr_drop_order" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d38cbd4bf41107371fe9964be5d2116a4502ed0b130b8143f08e7c6aa1ac97f7
[INFO] running `Command { std: "docker" "start" "-a" "d38cbd4bf41107371fe9964be5d2116a4502ed0b130b8143f08e7c6aa1ac97f7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling libc v0.2.127
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling anyhow v1.0.60
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking os_str_bytes v6.2.0
[INFO] [stderr]     Checking once_cell v1.13.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking dotenv v0.15.0
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking directories v4.0.1
[INFO] [stderr]    Compiling clap_derive v3.2.15
[INFO] [stderr]     Checking clap v3.2.16
[INFO] [stderr]     Checking java-versions-manager v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `str` is never read
[INFO] [stdout]  --> examples/simple_test.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut str = "aaa";
[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: variable does not need to be mutable
[INFO] [stdout]   --> examples/simple_test.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let mut v = vec![a];
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `array`
[INFO] [stdout]   --> examples/simple_test.rs:34:19
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn test_1(array:&[Constructor]) {
[INFO] [stdout]    |                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_array`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `obj`
[INFO] [stdout]   --> examples/simple_test.rs:38:19
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn test_2(obj:&Constructor) {
[INFO] [stdout]    |                   ^^^ help: if this is intentional, prefix it with an underscore: `_obj`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `p1` and `p2` are never read
[INFO] [stdout]   --> examples/simple_test.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct Constructor {
[INFO] [stdout]    |        ----------- fields in this struct
[INFO] [stdout] 22 |     p1:String,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 23 |     p2:String,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `next` is never used
[INFO] [stdout]  --> examples/gats_2.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | trait LendingIterator {
[INFO] [stdout]   |       --------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 8 |     fn next<'a>(&'a mut self) -> Option<Self::Item<'a>>;
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `slice`, `start`, and `window_size` are never read
[INFO] [stdout]   --> examples/gats_2.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct WindowMut<'t, T> {
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] 12 |     slice: &'t mut [T],
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 13 |     start: usize,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 14 |     window_size: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `PointerFamily` is never used
[INFO] [stdout]   --> examples/gats_2.rs:27:7
[INFO] [stdout]    |
[INFO] [stdout] 27 | trait PointerFamily {
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RcFamily` is never constructed
[INFO] [stdout]   --> examples/gats_2.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | struct RcFamily;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/command/link.rs:13:11
[INFO] [stdout]    |
[INFO] [stdout] 13 |         if(args.len()!=2) {panic!("need  two args");}
[INFO] [stdout]    |           ^             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 13 -         if(args.len()!=2) {panic!("need  two args");}
[INFO] [stdout] 13 +         if args.len()!=2 {panic!("need  two args");}
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/command/unlink.rs:13:11
[INFO] [stdout]    |
[INFO] [stdout] 13 |         if(args.len()==0) {
[INFO] [stdout]    |           ^             ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 13 -         if(args.len()==0) {
[INFO] [stdout] 13 +         if args.len()==0 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `envOperator` should have an upper camel case name
[INFO] [stdout]  --> src/command/env_operator/env_operator.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct envOperator ();
[INFO] [stdout]   |            ^^^^^^^^^^^ help: convert the identifier to upper camel case: `EnvOperator`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/command/link.rs:13:11
[INFO] [stdout]    |
[INFO] [stdout] 13 |         if(args.len()!=2) {panic!("need  two args");}
[INFO] [stdout]    |           ^             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 13 -         if(args.len()!=2) {panic!("need  two args");}
[INFO] [stdout] 13 +         if args.len()!=2 {panic!("need  two args");}
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/command/unlink.rs:13:11
[INFO] [stdout]    |
[INFO] [stdout] 13 |         if(args.len()==0) {
[INFO] [stdout]    |           ^             ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 13 -         if(args.len()==0) {
[INFO] [stdout] 13 +         if args.len()==0 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `envOperator` should have an upper camel case name
[INFO] [stdout]  --> src/command/env_operator/env_operator.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct envOperator ();
[INFO] [stdout]   |            ^^^^^^^^^^^ help: convert the identifier to upper camel case: `EnvOperator`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ArcFamily` is never constructed
[INFO] [stdout]   --> examples/gats_2.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | struct ArcFamily;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_default` is never used
[INFO] [stdout]   --> tests/inte_test.rs:56:4
[INFO] [stdout]    |
[INFO] [stdout] 56 | fn get_default<'r, K, V>(map: &'r mut HashMap<K, V>, key: K) -> &'r mut V
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/command/current.rs:11:23
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn execute(&self, args: Vec<String>) {
[INFO] [stdout]    |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/command/ls.rs:12:23
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn execute(&self, args: Vec<String>) {
[INFO] [stdout]    |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `envOperator` is never constructed
[INFO] [stdout]  --> src/command/env_operator/env_operator.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct envOperator ();
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `PointerFamily` is never used
[INFO] [stdout]  --> examples/gat_example.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | trait PointerFamily {
[INFO] [stdout]   |       ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RcPointer` is never constructed
[INFO] [stdout]  --> examples/gat_example.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct RcPointer;
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `subCmd` should have a snake case name
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     subCmd:String,
[INFO] [stdout]    |     ^^^^^^ help: convert the identifier to snake case: `sub_cmd`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ArcPointer` is never constructed
[INFO] [stdout]   --> examples/gat_example.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct ArcPointer;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MyDataStructure` is never constructed
[INFO] [stdout]   --> examples/gat_example.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | struct MyDataStructure<T, PointerSel: PointerFamily> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `FunctorFamily` is never used
[INFO] [stdout]   --> examples/gat_example.rs:25:7
[INFO] [stdout]    |
[INFO] [stdout] 25 | trait FunctorFamily {
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ApplicativeFamily` is never used
[INFO] [stdout]   --> examples/gat_example.rs:32:7
[INFO] [stdout]    |
[INFO] [stdout] 32 | trait ApplicativeFamily: FunctorFamily {
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `MonadFamily` is never used
[INFO] [stdout]   --> examples/gat_example.rs:39:7
[INFO] [stdout]    |
[INFO] [stdout] 39 | trait MonadFamily: ApplicativeFamily {
[INFO] [stdout]    |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `subCmd` should have a snake case name
[INFO] [stdout]   --> src/command/cmd_holder.rs:11:21
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn generate(subCmd: String) -> Box<dyn Cmd> {
[INFO] [stdout]    |                     ^^^^^^ help: convert the identifier to snake case: `sub_cmd`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OptionType` is never constructed
[INFO] [stdout]   --> examples/gat_example.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | struct OptionType;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> examples/gat_example.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn apply<T, U, F>(value: Self::Type<T>, f: Self::Type<F>) -> Self::Type<U>
[INFO] [stdout]    |                       --------------------  ---------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 67 |         value.zip(f).map(|(v, mut f)| f(v))
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout]    = note: requested on the command line with `-D tail-expr-drop-order`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/command/current.rs:11:23
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn execute(&self, args: Vec<String>) {
[INFO] [stdout]    |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/command/ls.rs:12:23
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn execute(&self, args: Vec<String>) {
[INFO] [stdout]    |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `java-versions-manager` (example "gat_example") due to 2 previous errors; 8 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: struct `envOperator` is never constructed
[INFO] [stdout]  --> src/command/env_operator/env_operator.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct envOperator ();
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `subCmd` should have a snake case name
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     subCmd:String,
[INFO] [stdout]    |     ^^^^^^ help: convert the identifier to snake case: `sub_cmd`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `subCmd` should have a snake case name
[INFO] [stdout]   --> src/command/cmd_holder.rs:11:21
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn generate(subCmd: String) -> Box<dyn Cmd> {
[INFO] [stdout]    |                     ^^^^^^ help: convert the identifier to snake case: `sub_cmd`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d38cbd4bf41107371fe9964be5d2116a4502ed0b130b8143f08e7c6aa1ac97f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d38cbd4bf41107371fe9964be5d2116a4502ed0b130b8143f08e7c6aa1ac97f7", kill_on_drop: false }`
[INFO] [stdout] d38cbd4bf41107371fe9964be5d2116a4502ed0b130b8143f08e7c6aa1ac97f7