[INFO] cloning repository https://github.com/monkeydioude/test-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/monkeydioude/test-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmonkeydioude%2Ftest-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmonkeydioude%2Ftest-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 48d070f2c0dc86a8b2958fbc8c75f9fbbf8e8fcd
[INFO] checking monkeydioude/test-rust against try#b28cc4eb48a6415b914e8ad0308be255ff8d73ed for pr-156508
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmonkeydioude%2Ftest-rust" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/monkeydioude/test-rust
[INFO] finished tweaking git repo https://github.com/monkeydioude/test-rust
[INFO] tweaked toml for git repo https://github.com/monkeydioude/test-rust written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/monkeydioude/test-rust on toolchain b28cc4eb48a6415b914e8ad0308be255ff8d73ed
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b28cc4eb48a6415b914e8ad0308be255ff8d73ed" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/monkeydioude/test-rust 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" "+b28cc4eb48a6415b914e8ad0308be255ff8d73ed" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking monkeydioude/test-rust against try#b28cc4eb48a6415b914e8ad0308be255ff8d73ed for pr-156508
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmonkeydioude%2Ftest-rust" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/monkeydioude/test-rust
[INFO] finished tweaking git repo https://github.com/monkeydioude/test-rust
[INFO] tweaked toml for git repo https://github.com/monkeydioude/test-rust written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/monkeydioude/test-rust on toolchain b28cc4eb48a6415b914e8ad0308be255ff8d73ed
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b28cc4eb48a6415b914e8ad0308be255ff8d73ed" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/monkeydioude/test-rust 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" "+b28cc4eb48a6415b914e8ad0308be255ff8d73ed" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+b28cc4eb48a6415b914e8ad0308be255ff8d73ed" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 49b631401901cf8b65c19957b5490c3cd0555cdd0df0160d422b30c3153c7e34
[INFO] running `Command { std: "docker" "start" "-a" "49b631401901cf8b65c19957b5490c3cd0555cdd0df0160d422b30c3153c7e34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49b631401901cf8b65c19957b5490c3cd0555cdd0df0160d422b30c3153c7e34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49b631401901cf8b65c19957b5490c3cd0555cdd0df0160d422b30c3153c7e34", kill_on_drop: false }`
[INFO] [stdout] 49b631401901cf8b65c19957b5490c3cd0555cdd0df0160d422b30c3153c7e34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+b28cc4eb48a6415b914e8ad0308be255ff8d73ed" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf961244302cdb6918d8b15c4acc2d39fbf71d6ffd836cf459506e7048468a51
[INFO] running `Command { std: "docker" "start" "-a" "cf961244302cdb6918d8b15c4acc2d39fbf71d6ffd836cf459506e7048468a51", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking matrixmultiply v0.3.2
[INFO] [stderr]     Checking num-complex v0.4.2
[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stderr]     Checking test-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/test2.rs:8:23
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn fn_dummy() -> impl (FnOnce() -> Box<dyn Unit>) {
[INFO] [stdout]   |                       ^                         ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 8 - fn fn_dummy() -> impl (FnOnce() -> Box<dyn Unit>) {
[INFO] [stdout] 8 + fn fn_dummy() -> impl FnOnce() -> Box<dyn Unit> {
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `lf1` should have an upper camel case name
[INFO] [stdout]  --> src/test_lifetime.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct lf1 {
[INFO] [stdout]   |        ^^^ help: convert the identifier to upper camel case: `Lf1`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `layer`
[INFO] [stdout]   --> src/test_macro.rs:22:14
[INFO] [stdout]    |
[INFO] [stdout] 22 | macro_rules! layer {
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Mul`
[INFO] [stdout]  --> src/test_matrices.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Mul;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/test2.rs:8:23
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn fn_dummy() -> impl (FnOnce() -> Box<dyn Unit>) {
[INFO] [stdout]   |                       ^                         ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 8 - fn fn_dummy() -> impl (FnOnce() -> Box<dyn Unit>) {
[INFO] [stdout] 8 + fn fn_dummy() -> impl FnOnce() -> Box<dyn Unit> {
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `lf1` should have an upper camel case name
[INFO] [stdout]  --> src/test_lifetime.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct lf1 {
[INFO] [stdout]   |        ^^^ help: convert the identifier to upper camel case: `Lf1`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `layer`
[INFO] [stdout]   --> src/test_macro.rs:22:14
[INFO] [stdout]    |
[INFO] [stdout] 22 | macro_rules! layer {
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Mul`
[INFO] [stdout]   --> src/test_matrices.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout]  1 | use std::ops::Mul;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]   --> src/main.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub mod test_matrices;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `lf` is never read
[INFO] [stdout]   --> src/test_lifetime.rs:38:23
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let mut lf: lf1 = lf1{msg: Str{str: "heyooo"}};
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] 39 |     {
[INFO] [stdout] 40 |         lf = get_lf1_cb("stay cheeki breeki")();
[INFO] [stdout]    |         --------------------------------------- `lf` is overwritten here before the previous value is read
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `trial`
[INFO] [stdout]   --> src/test_generics.rs:36:19
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn call_node_only(trial: impl Node) {}
[INFO] [stdout]    |                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_trial`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Unit` is never used
[INFO] [stdout]  --> src/test2.rs:2:7
[INFO] [stdout]   |
[INFO] [stdout] 2 | trait Unit {}
[INFO] [stdout]   |       ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Dummy` is never constructed
[INFO] [stdout]  --> src/test2.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Dummy;
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fn_dummy` is never used
[INFO] [stdout]  --> src/test2.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn fn_dummy() -> impl (FnOnce() -> Box<dyn Unit>) {
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Null` is never constructed
[INFO] [stdout]  --> src/test3.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum Test {
[INFO] [stdout]   |      ---- variant in this enum
[INFO] [stdout] 3 |     F64(f64),
[INFO] [stdout] 4 |     Null,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Test` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `CloseTest` is never used
[INFO] [stdout]  --> src/test_closures1.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | type CloseTest<'a> = Box<dyn Fn() -> &'a dyn T1>; 
[INFO] [stdout]   |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `CloseTestPtr` is never used
[INFO] [stdout]  --> src/test_closures1.rs:2:6
[INFO] [stdout]   |
[INFO] [stdout] 2 | type CloseTestPtr<'a> = &'a dyn Fn() -> &'a dyn T1; 
[INFO] [stdout]   |      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `T1` is never used
[INFO] [stdout]  --> src/test_closures1.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | trait T1 {
[INFO] [stdout]   |       ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_v` is never used
[INFO] [stdout]   --> src/test_references.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn get_v(v: &i32) -> i32 {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Test` is never constructed
[INFO] [stdout]  --> src/test_macro.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct Test;
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `B` is never constructed
[INFO] [stdout]  --> src/test_enum.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum Test {
[INFO] [stdout]   |      ---- variant in this enum
[INFO] [stdout] 3 |     A(i32),
[INFO] [stdout] 4 |     B(f32),
[INFO] [stdout]   |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]  --> src/test4.rs:8:33
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn new(str: &'a str) -> LulString{
[INFO] [stdout]   |                      --         ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]   |                      |
[INFO] [stdout]   |                      the lifetime is named here
[INFO] [stdout]   |
[INFO] [stdout]   = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]   = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn new(str: &'a str) -> LulString<'a>{
[INFO] [stdout]   |                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/test_lifetime.rs:26:21
[INFO] [stdout]    |
[INFO] [stdout] 26 |             str: msg.clone()
[INFO] [stdout]    |                     ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `lf` is never read
[INFO] [stdout]   --> src/test_lifetime.rs:38:23
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let mut lf: lf1 = lf1{msg: Str{str: "heyooo"}};
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] 39 |     {
[INFO] [stdout] 40 |         lf = get_lf1_cb("stay cheeki breeki")();
[INFO] [stdout]    |         --------------------------------------- `lf` is overwritten here before the previous value is read
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `trial`
[INFO] [stdout]   --> src/test_generics.rs:36:19
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn call_node_only(trial: impl Node) {}
[INFO] [stdout]    |                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_trial`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Unit` is never used
[INFO] [stdout]  --> src/test2.rs:2:7
[INFO] [stdout]   |
[INFO] [stdout] 2 | trait Unit {}
[INFO] [stdout]   |       ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Dummy` is never constructed
[INFO] [stdout]  --> src/test2.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Dummy;
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fn_dummy` is never used
[INFO] [stdout]  --> src/test2.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn fn_dummy() -> impl (FnOnce() -> Box<dyn Unit>) {
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Null` is never constructed
[INFO] [stdout]  --> src/test3.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum Test {
[INFO] [stdout]   |      ---- variant in this enum
[INFO] [stdout] 3 |     F64(f64),
[INFO] [stdout] 4 |     Null,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Test` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `CloseTest` is never used
[INFO] [stdout]  --> src/test_closures1.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | type CloseTest<'a> = Box<dyn Fn() -> &'a dyn T1>; 
[INFO] [stdout]   |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `CloseTestPtr` is never used
[INFO] [stdout]  --> src/test_closures1.rs:2:6
[INFO] [stdout]   |
[INFO] [stdout] 2 | type CloseTestPtr<'a> = &'a dyn Fn() -> &'a dyn T1; 
[INFO] [stdout]   |      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `T1` is never used
[INFO] [stdout]  --> src/test_closures1.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | trait T1 {
[INFO] [stdout]   |       ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_v` is never used
[INFO] [stdout]   --> src/test_references.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn get_v(v: &i32) -> i32 {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Test` is never constructed
[INFO] [stdout]  --> src/test_macro.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct Test;
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `B` is never constructed
[INFO] [stdout]  --> src/test_enum.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum Test {
[INFO] [stdout]   |      ---- variant in this enum
[INFO] [stdout] 3 |     A(i32),
[INFO] [stdout] 4 |     B(f32),
[INFO] [stdout]   |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]  --> src/test4.rs:8:33
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn new(str: &'a str) -> LulString{
[INFO] [stdout]   |                      --         ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]   |                      |
[INFO] [stdout]   |                      the lifetime is named here
[INFO] [stdout]   |
[INFO] [stdout]   = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]   = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn new(str: &'a str) -> LulString<'a>{
[INFO] [stdout]   |                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/test_lifetime.rs:26:21
[INFO] [stdout]    |
[INFO] [stdout] 26 |             str: msg.clone()
[INFO] [stdout]    |                     ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.20s
[INFO] running `Command { std: "docker" "inspect" "cf961244302cdb6918d8b15c4acc2d39fbf71d6ffd836cf459506e7048468a51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf961244302cdb6918d8b15c4acc2d39fbf71d6ffd836cf459506e7048468a51", kill_on_drop: false }`
[INFO] [stdout] cf961244302cdb6918d8b15c4acc2d39fbf71d6ffd836cf459506e7048468a51
