[INFO] fetching crate bitcoinleveldb-env 0.1.16-alpha.0...
[INFO] checking bitcoinleveldb-env-0.1.16-alpha.0 against try#cc4c4328b2b4da72bc61f8f5984292dd73740b5e for pr-112842
[INFO] extracting crate bitcoinleveldb-env 0.1.16-alpha.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate bitcoinleveldb-env 0.1.16-alpha.0 on toolchain cc4c4328b2b4da72bc61f8f5984292dd73740b5e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cc4c4328b2b4da72bc61f8f5984292dd73740b5e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bitcoinleveldb-env 0.1.16-alpha.0
[INFO] finished tweaking crates.io crate bitcoinleveldb-env 0.1.16-alpha.0
[INFO] tweaked toml for crates.io crate bitcoinleveldb-env 0.1.16-alpha.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cc4c4328b2b4da72bc61f8f5984292dd73740b5e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cc4c4328b2b4da72bc61f8f5984292dd73740b5e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+cc4c4328b2b4da72bc61f8f5984292dd73740b5e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 857034f7dce66147e445d5e15b289f1c9d13c30b12e47cf8469443037385a593
[INFO] running `Command { std: "docker" "start" "-a" "857034f7dce66147e445d5e15b289f1c9d13c30b12e47cf8469443037385a593", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "857034f7dce66147e445d5e15b289f1c9d13c30b12e47cf8469443037385a593", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "857034f7dce66147e445d5e15b289f1c9d13c30b12e47cf8469443037385a593", kill_on_drop: false }`
[INFO] [stdout] 857034f7dce66147e445d5e15b289f1c9d13c30b12e47cf8469443037385a593
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+cc4c4328b2b4da72bc61f8f5984292dd73740b5e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 02520c1719af8817554de1f1bc1dfad2ebae9a8464f2dc07a1fdfb1946221d59
[INFO] running `Command { std: "docker" "start" "-a" "02520c1719af8817554de1f1bc1dfad2ebae9a8464f2dc07a1fdfb1946221d59", kill_on_drop: false }`
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[INFO] [stderr]     Checking bitcoin-imports v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoin-cfg v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoin-derive v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoinleveldb-slice v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoinleveldb-status v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoinleveldb-util v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoinleveldb-comparator v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoinleveldb-filter v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoinleveldb-key v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoinleveldb-file v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoinleveldb-rand v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoinleveldb-log v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoinleveldb-env v0.1.16-alpha.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `bitcoin_derive::*`
[INFO] [stdout]  --> src/imports.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub(crate) use bitcoin_derive::*;
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fname`
[INFO] [stdout]   --> src/lvldb_env.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 80 |         fname:  &String,
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_fname`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]   --> src/lvldb_env.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |         result: *mut *mut Box<dyn WritableFile>) -> crate::Status {
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/lvldb_env.rs:193:31
[INFO] [stdout]     |
[INFO] [stdout] 193 |     fn delete_file(&mut self, f: &String) -> crate::Status {
[INFO] [stdout]     |                               ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `d`
[INFO] [stdout]    --> src/lvldb_env.rs:204:30
[INFO] [stdout]     |
[INFO] [stdout] 204 |     fn create_dir(&mut self, d: &String) -> crate::Status {
[INFO] [stdout]     |                              ^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `d`
[INFO] [stdout]    --> src/lvldb_env.rs:215:30
[INFO] [stdout]     |
[INFO] [stdout] 215 |     fn delete_dir(&mut self, d: &String) -> crate::Status {
[INFO] [stdout]     |                              ^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/lvldb_env.rs:232:9
[INFO] [stdout]     |
[INFO] [stdout] 232 |         f: &String,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/lvldb_env.rs:233:9
[INFO] [stdout]     |
[INFO] [stdout] 233 |         r: *mut *mut Box<dyn SequentialFile>) -> crate::Status {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/lvldb_env.rs:245:9
[INFO] [stdout]     |
[INFO] [stdout] 245 |         f: &String,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/lvldb_env.rs:246:9
[INFO] [stdout]     |
[INFO] [stdout] 246 |         r: *mut *mut Box<dyn RandomAccessFile>) -> crate::Status {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/lvldb_env.rs:258:9
[INFO] [stdout]     |
[INFO] [stdout] 258 |         f: &String,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/lvldb_env.rs:259:9
[INFO] [stdout]     |
[INFO] [stdout] 259 |         r: *mut *mut Box<dyn WritableFile>) -> crate::Status {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/lvldb_env.rs:271:9
[INFO] [stdout]     |
[INFO] [stdout] 271 |         f: &String,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/lvldb_env.rs:272:9
[INFO] [stdout]     |
[INFO] [stdout] 272 |         r: *mut *mut Box<dyn WritableFile>) -> crate::Status {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/lvldb_env.rs:283:31
[INFO] [stdout]     |
[INFO] [stdout] 283 |     fn file_exists(&mut self, f: &String) -> bool {
[INFO] [stdout]     |                               ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dir`
[INFO] [stdout]    --> src/lvldb_env.rs:295:9
[INFO] [stdout]     |
[INFO] [stdout] 295 |         dir: &String,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_dir`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/lvldb_env.rs:296:9
[INFO] [stdout]     |
[INFO] [stdout] 296 |         r:   *mut Vec<String>) -> crate::Status {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/lvldb_env.rs:307:9
[INFO] [stdout]     |
[INFO] [stdout] 307 |         f: &String,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/lvldb_env.rs:308:9
[INFO] [stdout]     |
[INFO] [stdout] 308 |         s: *mut u64) -> crate::Status {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/lvldb_env.rs:319:9
[INFO] [stdout]     |
[INFO] [stdout] 319 |         s: &String,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/lvldb_env.rs:320:9
[INFO] [stdout]     |
[INFO] [stdout] 320 |         t: &String) -> crate::Status {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/lvldb_env.rs:331:9
[INFO] [stdout]     |
[INFO] [stdout] 331 |         f: &String,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]    --> src/lvldb_env.rs:332:9
[INFO] [stdout]     |
[INFO] [stdout] 332 |         l: *mut *mut Box<dyn FileLock>) -> crate::Status {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]    --> src/lvldb_env.rs:342:31
[INFO] [stdout]     |
[INFO] [stdout] 342 |     fn unlock_file(&mut self, l: *mut Box<dyn FileLock>) -> crate::Status {
[INFO] [stdout]     |                               ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/lvldb_env.rs:353:9
[INFO] [stdout]     |
[INFO] [stdout] 353 |         f: fn(_0: *mut c_void) -> c_void,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/lvldb_env.rs:354:9
[INFO] [stdout]     |
[INFO] [stdout] 354 |         a: *mut c_void)  {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/lvldb_env.rs:365:9
[INFO] [stdout]     |
[INFO] [stdout] 365 |         f: fn(_0: *mut c_void) -> c_void,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/lvldb_env.rs:366:9
[INFO] [stdout]     |
[INFO] [stdout] 366 |         a: *mut c_void)  {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `path`
[INFO] [stdout]    --> src/lvldb_env.rs:376:38
[INFO] [stdout]     |
[INFO] [stdout] 376 |     fn get_test_directory(&mut self, path: *mut String) -> crate::Status {
[INFO] [stdout]     |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fname`
[INFO] [stdout]    --> src/lvldb_env.rs:387:9
[INFO] [stdout]     |
[INFO] [stdout] 387 |         fname:  &String,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_fname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]    --> src/lvldb_env.rs:388:9
[INFO] [stdout]     |
[INFO] [stdout] 388 |         result: *mut *mut Box<dyn Logger>) -> crate::Status {
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `micros`
[INFO] [stdout]    --> src/lvldb_env.rs:408:42
[INFO] [stdout]     |
[INFO] [stdout] 408 |     fn sleep_for_microseconds(&mut self, micros: i32)  {
[INFO] [stdout]     |                                          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_micros`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/lvldb_env.rs:424:16
[INFO] [stdout]     |
[INFO] [stdout] 424 |     pub fn new(t: Rc<RefCell<dyn Env>>) -> Self {
[INFO] [stdout]     |                ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `info_log`
[INFO] [stdout]    --> src/lvldb_env.rs:468:9
[INFO] [stdout]     |
[INFO] [stdout] 468 |         info_log: Rc<RefCell<dyn Logger>>,
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_info_log`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `format`
[INFO] [stdout]    --> src/lvldb_env.rs:469:9
[INFO] [stdout]     |
[INFO] [stdout] 469 |         format:   *const u8,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_format`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]    --> src/lvldb_env.rs:470:9
[INFO] [stdout]     |
[INFO] [stdout] 470 |         args:     &[&str])  {
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]    --> src/lvldb_env.rs:484:9
[INFO] [stdout]     |
[INFO] [stdout] 484 |         env:         Rc<RefCell<dyn Env>>,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/lvldb_env.rs:485:9
[INFO] [stdout]     |
[INFO] [stdout] 485 |         data:        &Slice,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fname`
[INFO] [stdout]    --> src/lvldb_env.rs:486:9
[INFO] [stdout]     |
[INFO] [stdout] 486 |         fname:       &String,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_fname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `should_sync`
[INFO] [stdout]    --> src/lvldb_env.rs:487:9
[INFO] [stdout]     |
[INFO] [stdout] 487 |         should_sync: bool) -> crate::Status {
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_should_sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]    --> src/lvldb_env.rs:517:9
[INFO] [stdout]     |
[INFO] [stdout] 517 |         env:   Rc<RefCell<dyn Env>>,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/lvldb_env.rs:518:9
[INFO] [stdout]     |
[INFO] [stdout] 518 |         data:  &Slice,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fname`
[INFO] [stdout]    --> src/lvldb_env.rs:519:9
[INFO] [stdout]     |
[INFO] [stdout] 519 |         fname: &String) -> crate::Status {
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_fname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]    --> src/lvldb_env.rs:533:9
[INFO] [stdout]     |
[INFO] [stdout] 533 |         env:   Rc<RefCell<dyn Env>>,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/lvldb_env.rs:534:9
[INFO] [stdout]     |
[INFO] [stdout] 534 |         data:  &Slice,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fname`
[INFO] [stdout]    --> src/lvldb_env.rs:535:9
[INFO] [stdout]     |
[INFO] [stdout] 535 |         fname: &String) -> crate::Status {
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_fname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]    --> src/lvldb_env.rs:549:9
[INFO] [stdout]     |
[INFO] [stdout] 549 |         env:   Rc<RefCell<dyn Env>>,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fname`
[INFO] [stdout]    --> src/lvldb_env.rs:550:9
[INFO] [stdout]     |
[INFO] [stdout] 550 |         fname: &String,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_fname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/lvldb_env.rs:551:9
[INFO] [stdout]     |
[INFO] [stdout] 551 |         data:  *mut String) -> crate::Status {
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]    --> src/lvldb_env.rs:581:9
[INFO] [stdout]     |
[INFO] [stdout] 581 |         env:   Rc<RefCell<dyn Env>>,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `files`
[INFO] [stdout]    --> src/lvldb_env.rs:582:9
[INFO] [stdout]     |
[INFO] [stdout] 582 |         files: *mut *mut u8,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_files`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num`
[INFO] [stdout]    --> src/lvldb_env.rs:583:9
[INFO] [stdout]     |
[INFO] [stdout] 583 |         num:   i32) -> bool {
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `argc`
[INFO] [stdout]    --> src/lvldb_env.rs:601:9
[INFO] [stdout]     |
[INFO] [stdout] 601 |         argc: i32,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_argc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `argv`
[INFO] [stdout]    --> src/lvldb_env.rs:602:9
[INFO] [stdout]     |
[INFO] [stdout] 602 |         argv: *mut *mut u8) -> i32 {
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_argv`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]    --> src/lvldb_env.rs:630:9
[INFO] [stdout]     |
[INFO] [stdout] 630 |         env:               Rc<RefCell<dyn Env>>,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dbname`
[INFO] [stdout]    --> src/lvldb_env.rs:631:9
[INFO] [stdout]     |
[INFO] [stdout] 631 |         dbname:            &String,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_dbname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `descriptor_number`
[INFO] [stdout]    --> src/lvldb_env.rs:632:9
[INFO] [stdout]     |
[INFO] [stdout] 632 |         descriptor_number: u64) -> crate::Status {
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_descriptor_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `limit`
[INFO] [stdout]   --> src/env_windows_helper_test.rs:22:37
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn set_read_only_mmap_limit(limit: i32)  {
[INFO] [stdout]    |                                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_limit`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]    --> src/env_test.rs:165:9
[INFO] [stdout]     |
[INFO] [stdout] 165 |         val:         i32,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_running`
[INFO] [stdout]    --> src/env_test.rs:166:9
[INFO] [stdout]     |
[INFO] [stdout] 166 |         num_running: i32) -> Self {
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_running`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arg`
[INFO] [stdout]    --> src/env_test.rs:178:16
[INFO] [stdout]     |
[INFO] [stdout] 178 | fn thread_body(arg: *mut c_void)  {
[INFO] [stdout]     |                ^^^ help: if this is intentional, prefix it with an underscore: `_arg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `argc`
[INFO] [stdout]    --> src/env_test.rs:291:9
[INFO] [stdout]     |
[INFO] [stdout] 291 |         argc: i32,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_argc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `argv`
[INFO] [stdout]    --> src/env_test.rs:292:9
[INFO] [stdout]     |
[INFO] [stdout] 292 |         argv: *mut *mut u8) -> i32 {
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_argv`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mmap_limit`
[INFO] [stdout]   --> src/env_windows_test.rs:25:28
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn set_file_limits(mmap_limit: i32)  {
[INFO] [stdout]    |                            ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mmap_limit`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `argc`
[INFO] [stdout]   --> src/env_windows_test.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |         argc: i32,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_argc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `argv`
[INFO] [stdout]   --> src/env_windows_test.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 73 |         argv: *mut *mut u8) -> i32 {
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_argv`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `target` is never read
[INFO] [stdout]    --> src/lvldb_env.rs:184:5
[INFO] [stdout]     |
[INFO] [stdout] 183 | pub struct EnvWrapper {
[INFO] [stdout]     |            ---------- field in this struct
[INFO] [stdout] 184 |     target: Rc<RefCell<dyn Env>>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EnvWindowsTestHelper` is never constructed
[INFO] [stdout]   --> src/env_windows_helper_test.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct EnvWindowsTestHelper {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `set_read_only_mmap_limit` is never used
[INFO] [stdout]   --> src/env_windows_helper_test.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl EnvWindowsTestHelper {
[INFO] [stdout]    | ------------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn set_read_only_mmap_limit(limit: i32)  {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DELAY_MICROS` is never used
[INFO] [stdout]  --> src/env_test.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | const DELAY_MICROS: i32 = 100000;
[INFO] [stdout]   |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `env` is never read
[INFO] [stdout]  --> src/env_test.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct EnvTest {
[INFO] [stdout]   |        ------- field in this struct
[INFO] [stdout] 8 |     env: Rc<RefCell<dyn Env>>,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `State` is never constructed
[INFO] [stdout]    --> src/env_test.rs:150:8
[INFO] [stdout]     |
[INFO] [stdout] 150 | struct State {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/env_test.rs:164:12
[INFO] [stdout]     |
[INFO] [stdout] 162 | impl State {
[INFO] [stdout]     | ---------- associated function in this implementation
[INFO] [stdout] 163 |     
[INFO] [stdout] 164 |     pub fn new(
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `thread_body` is never used
[INFO] [stdout]    --> src/env_test.rs:178:4
[INFO] [stdout]     |
[INFO] [stdout] 178 | fn thread_body(arg: *mut c_void)  {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `testenv_test_main` is never used
[INFO] [stdout]    --> src/env_test.rs:290:4
[INFO] [stdout]     |
[INFO] [stdout] 290 | fn testenv_test_main (
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Inner` is never constructed
[INFO] [stdout]    --> src/env_test.rs:156:16
[INFO] [stdout]     |
[INFO] [stdout] 156 |     pub struct Inner {
[INFO] [stdout]     |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MMAP_LIMIT` is never used
[INFO] [stdout]  --> src/env_windows_test.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | const MMAP_LIMIT: i32 = 4;
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `env` is never read
[INFO] [stdout]  --> src/env_windows_test.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct EnvWindowsTest {
[INFO] [stdout]   |        -------------- field in this struct
[INFO] [stdout] 8 |     env: Rc<RefCell<dyn Env>>,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `set_file_limits` is never used
[INFO] [stdout]   --> src/env_windows_test.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl EnvWindowsTest {
[INFO] [stdout]    | ------------------- associated function in this implementation
[INFO] [stdout] 24 |
[INFO] [stdout] 25 |     pub fn set_file_limits(mmap_limit: i32)  {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `testenv_windows_test_main` is never used
[INFO] [stdout]   --> src/env_windows_test.rs:71:4
[INFO] [stdout]    |
[INFO] [stdout] 71 | fn testenv_windows_test_main (
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bitcoin_derive::*`
[INFO] [stdout]  --> src/imports.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub(crate) use bitcoin_derive::*;
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fname`
[INFO] [stdout]   --> src/lvldb_env.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 80 |         fname:  &String,
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_fname`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]   --> src/lvldb_env.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |         result: *mut *mut Box<dyn WritableFile>) -> crate::Status {
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/lvldb_env.rs:193:31
[INFO] [stdout]     |
[INFO] [stdout] 193 |     fn delete_file(&mut self, f: &String) -> crate::Status {
[INFO] [stdout]     |                               ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `d`
[INFO] [stdout]    --> src/lvldb_env.rs:204:30
[INFO] [stdout]     |
[INFO] [stdout] 204 |     fn create_dir(&mut self, d: &String) -> crate::Status {
[INFO] [stdout]     |                              ^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `d`
[INFO] [stdout]    --> src/lvldb_env.rs:215:30
[INFO] [stdout]     |
[INFO] [stdout] 215 |     fn delete_dir(&mut self, d: &String) -> crate::Status {
[INFO] [stdout]     |                              ^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/lvldb_env.rs:232:9
[INFO] [stdout]     |
[INFO] [stdout] 232 |         f: &String,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/lvldb_env.rs:233:9
[INFO] [stdout]     |
[INFO] [stdout] 233 |         r: *mut *mut Box<dyn SequentialFile>) -> crate::Status {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/lvldb_env.rs:245:9
[INFO] [stdout]     |
[INFO] [stdout] 245 |         f: &String,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/lvldb_env.rs:246:9
[INFO] [stdout]     |
[INFO] [stdout] 246 |         r: *mut *mut Box<dyn RandomAccessFile>) -> crate::Status {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/lvldb_env.rs:258:9
[INFO] [stdout]     |
[INFO] [stdout] 258 |         f: &String,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/lvldb_env.rs:259:9
[INFO] [stdout]     |
[INFO] [stdout] 259 |         r: *mut *mut Box<dyn WritableFile>) -> crate::Status {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/lvldb_env.rs:271:9
[INFO] [stdout]     |
[INFO] [stdout] 271 |         f: &String,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/lvldb_env.rs:272:9
[INFO] [stdout]     |
[INFO] [stdout] 272 |         r: *mut *mut Box<dyn WritableFile>) -> crate::Status {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/lvldb_env.rs:283:31
[INFO] [stdout]     |
[INFO] [stdout] 283 |     fn file_exists(&mut self, f: &String) -> bool {
[INFO] [stdout]     |                               ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dir`
[INFO] [stdout]    --> src/lvldb_env.rs:295:9
[INFO] [stdout]     |
[INFO] [stdout] 295 |         dir: &String,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_dir`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/lvldb_env.rs:296:9
[INFO] [stdout]     |
[INFO] [stdout] 296 |         r:   *mut Vec<String>) -> crate::Status {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/lvldb_env.rs:307:9
[INFO] [stdout]     |
[INFO] [stdout] 307 |         f: &String,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/lvldb_env.rs:308:9
[INFO] [stdout]     |
[INFO] [stdout] 308 |         s: *mut u64) -> crate::Status {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/lvldb_env.rs:319:9
[INFO] [stdout]     |
[INFO] [stdout] 319 |         s: &String,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/lvldb_env.rs:320:9
[INFO] [stdout]     |
[INFO] [stdout] 320 |         t: &String) -> crate::Status {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/lvldb_env.rs:331:9
[INFO] [stdout]     |
[INFO] [stdout] 331 |         f: &String,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]    --> src/lvldb_env.rs:332:9
[INFO] [stdout]     |
[INFO] [stdout] 332 |         l: *mut *mut Box<dyn FileLock>) -> crate::Status {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]    --> src/lvldb_env.rs:342:31
[INFO] [stdout]     |
[INFO] [stdout] 342 |     fn unlock_file(&mut self, l: *mut Box<dyn FileLock>) -> crate::Status {
[INFO] [stdout]     |                               ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/lvldb_env.rs:353:9
[INFO] [stdout]     |
[INFO] [stdout] 353 |         f: fn(_0: *mut c_void) -> c_void,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/lvldb_env.rs:354:9
[INFO] [stdout]     |
[INFO] [stdout] 354 |         a: *mut c_void)  {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/lvldb_env.rs:365:9
[INFO] [stdout]     |
[INFO] [stdout] 365 |         f: fn(_0: *mut c_void) -> c_void,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/lvldb_env.rs:366:9
[INFO] [stdout]     |
[INFO] [stdout] 366 |         a: *mut c_void)  {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `path`
[INFO] [stdout]    --> src/lvldb_env.rs:376:38
[INFO] [stdout]     |
[INFO] [stdout] 376 |     fn get_test_directory(&mut self, path: *mut String) -> crate::Status {
[INFO] [stdout]     |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fname`
[INFO] [stdout]    --> src/lvldb_env.rs:387:9
[INFO] [stdout]     |
[INFO] [stdout] 387 |         fname:  &String,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_fname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]    --> src/lvldb_env.rs:388:9
[INFO] [stdout]     |
[INFO] [stdout] 388 |         result: *mut *mut Box<dyn Logger>) -> crate::Status {
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `micros`
[INFO] [stdout]    --> src/lvldb_env.rs:408:42
[INFO] [stdout]     |
[INFO] [stdout] 408 |     fn sleep_for_microseconds(&mut self, micros: i32)  {
[INFO] [stdout]     |                                          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_micros`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/lvldb_env.rs:424:16
[INFO] [stdout]     |
[INFO] [stdout] 424 |     pub fn new(t: Rc<RefCell<dyn Env>>) -> Self {
[INFO] [stdout]     |                ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `info_log`
[INFO] [stdout]    --> src/lvldb_env.rs:468:9
[INFO] [stdout]     |
[INFO] [stdout] 468 |         info_log: Rc<RefCell<dyn Logger>>,
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_info_log`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `format`
[INFO] [stdout]    --> src/lvldb_env.rs:469:9
[INFO] [stdout]     |
[INFO] [stdout] 469 |         format:   *const u8,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_format`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]    --> src/lvldb_env.rs:470:9
[INFO] [stdout]     |
[INFO] [stdout] 470 |         args:     &[&str])  {
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]    --> src/lvldb_env.rs:484:9
[INFO] [stdout]     |
[INFO] [stdout] 484 |         env:         Rc<RefCell<dyn Env>>,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/lvldb_env.rs:485:9
[INFO] [stdout]     |
[INFO] [stdout] 485 |         data:        &Slice,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fname`
[INFO] [stdout]    --> src/lvldb_env.rs:486:9
[INFO] [stdout]     |
[INFO] [stdout] 486 |         fname:       &String,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_fname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `should_sync`
[INFO] [stdout]    --> src/lvldb_env.rs:487:9
[INFO] [stdout]     |
[INFO] [stdout] 487 |         should_sync: bool) -> crate::Status {
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_should_sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]    --> src/lvldb_env.rs:517:9
[INFO] [stdout]     |
[INFO] [stdout] 517 |         env:   Rc<RefCell<dyn Env>>,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/lvldb_env.rs:518:9
[INFO] [stdout]     |
[INFO] [stdout] 518 |         data:  &Slice,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fname`
[INFO] [stdout]    --> src/lvldb_env.rs:519:9
[INFO] [stdout]     |
[INFO] [stdout] 519 |         fname: &String) -> crate::Status {
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_fname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]    --> src/lvldb_env.rs:533:9
[INFO] [stdout]     |
[INFO] [stdout] 533 |         env:   Rc<RefCell<dyn Env>>,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/lvldb_env.rs:534:9
[INFO] [stdout]     |
[INFO] [stdout] 534 |         data:  &Slice,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fname`
[INFO] [stdout]    --> src/lvldb_env.rs:535:9
[INFO] [stdout]     |
[INFO] [stdout] 535 |         fname: &String) -> crate::Status {
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_fname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]    --> src/lvldb_env.rs:549:9
[INFO] [stdout]     |
[INFO] [stdout] 549 |         env:   Rc<RefCell<dyn Env>>,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 80 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fname`
[INFO] [stdout]    --> src/lvldb_env.rs:550:9
[INFO] [stdout]     |
[INFO] [stdout] 550 |         fname: &String,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_fname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/lvldb_env.rs:551:9
[INFO] [stdout]     |
[INFO] [stdout] 551 |         data:  *mut String) -> crate::Status {
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]    --> src/lvldb_env.rs:581:9
[INFO] [stdout]     |
[INFO] [stdout] 581 |         env:   Rc<RefCell<dyn Env>>,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `files`
[INFO] [stdout]    --> src/lvldb_env.rs:582:9
[INFO] [stdout]     |
[INFO] [stdout] 582 |         files: *mut *mut u8,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_files`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num`
[INFO] [stdout]    --> src/lvldb_env.rs:583:9
[INFO] [stdout]     |
[INFO] [stdout] 583 |         num:   i32) -> bool {
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `argc`
[INFO] [stdout]    --> src/lvldb_env.rs:601:9
[INFO] [stdout]     |
[INFO] [stdout] 601 |         argc: i32,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_argc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `argv`
[INFO] [stdout]    --> src/lvldb_env.rs:602:9
[INFO] [stdout]     |
[INFO] [stdout] 602 |         argv: *mut *mut u8) -> i32 {
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_argv`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]    --> src/lvldb_env.rs:630:9
[INFO] [stdout]     |
[INFO] [stdout] 630 |         env:               Rc<RefCell<dyn Env>>,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dbname`
[INFO] [stdout]    --> src/lvldb_env.rs:631:9
[INFO] [stdout]     |
[INFO] [stdout] 631 |         dbname:            &String,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_dbname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `descriptor_number`
[INFO] [stdout]    --> src/lvldb_env.rs:632:9
[INFO] [stdout]     |
[INFO] [stdout] 632 |         descriptor_number: u64) -> crate::Status {
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_descriptor_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `limit`
[INFO] [stdout]   --> src/env_windows_helper_test.rs:22:37
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn set_read_only_mmap_limit(limit: i32)  {
[INFO] [stdout]    |                                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_limit`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]    --> src/env_test.rs:165:9
[INFO] [stdout]     |
[INFO] [stdout] 165 |         val:         i32,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_running`
[INFO] [stdout]    --> src/env_test.rs:166:9
[INFO] [stdout]     |
[INFO] [stdout] 166 |         num_running: i32) -> Self {
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_running`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arg`
[INFO] [stdout]    --> src/env_test.rs:178:16
[INFO] [stdout]     |
[INFO] [stdout] 178 | fn thread_body(arg: *mut c_void)  {
[INFO] [stdout]     |                ^^^ help: if this is intentional, prefix it with an underscore: `_arg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `argc`
[INFO] [stdout]    --> src/env_test.rs:291:9
[INFO] [stdout]     |
[INFO] [stdout] 291 |         argc: i32,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_argc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `argv`
[INFO] [stdout]    --> src/env_test.rs:292:9
[INFO] [stdout]     |
[INFO] [stdout] 292 |         argv: *mut *mut u8) -> i32 {
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_argv`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mmap_limit`
[INFO] [stdout]   --> src/env_windows_test.rs:25:28
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn set_file_limits(mmap_limit: i32)  {
[INFO] [stdout]    |                            ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mmap_limit`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `argc`
[INFO] [stdout]   --> src/env_windows_test.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |         argc: i32,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_argc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `argv`
[INFO] [stdout]   --> src/env_windows_test.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 73 |         argv: *mut *mut u8) -> i32 {
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_argv`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `target` is never read
[INFO] [stdout]    --> src/lvldb_env.rs:184:5
[INFO] [stdout]     |
[INFO] [stdout] 183 | pub struct EnvWrapper {
[INFO] [stdout]     |            ---------- field in this struct
[INFO] [stdout] 184 |     target: Rc<RefCell<dyn Env>>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EnvWindowsTestHelper` is never constructed
[INFO] [stdout]   --> src/env_windows_helper_test.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct EnvWindowsTestHelper {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `set_read_only_mmap_limit` is never used
[INFO] [stdout]   --> src/env_windows_helper_test.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl EnvWindowsTestHelper {
[INFO] [stdout]    | ------------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn set_read_only_mmap_limit(limit: i32)  {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DELAY_MICROS` is never used
[INFO] [stdout]  --> src/env_test.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | const DELAY_MICROS: i32 = 100000;
[INFO] [stdout]   |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `env` is never read
[INFO] [stdout]  --> src/env_test.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct EnvTest {
[INFO] [stdout]   |        ------- field in this struct
[INFO] [stdout] 8 |     env: Rc<RefCell<dyn Env>>,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `State` is never constructed
[INFO] [stdout]    --> src/env_test.rs:150:8
[INFO] [stdout]     |
[INFO] [stdout] 150 | struct State {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/env_test.rs:164:12
[INFO] [stdout]     |
[INFO] [stdout] 162 | impl State {
[INFO] [stdout]     | ---------- associated function in this implementation
[INFO] [stdout] 163 |     
[INFO] [stdout] 164 |     pub fn new(
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `thread_body` is never used
[INFO] [stdout]    --> src/env_test.rs:178:4
[INFO] [stdout]     |
[INFO] [stdout] 178 | fn thread_body(arg: *mut c_void)  {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `testenv_test_main` is never used
[INFO] [stdout]    --> src/env_test.rs:290:4
[INFO] [stdout]     |
[INFO] [stdout] 290 | fn testenv_test_main (
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Inner` is never constructed
[INFO] [stdout]    --> src/env_test.rs:156:16
[INFO] [stdout]     |
[INFO] [stdout] 156 |     pub struct Inner {
[INFO] [stdout]     |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MMAP_LIMIT` is never used
[INFO] [stdout]  --> src/env_windows_test.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | const MMAP_LIMIT: i32 = 4;
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `env` is never read
[INFO] [stdout]  --> src/env_windows_test.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct EnvWindowsTest {
[INFO] [stdout]   |        -------------- field in this struct
[INFO] [stdout] 8 |     env: Rc<RefCell<dyn Env>>,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `set_file_limits` is never used
[INFO] [stdout]   --> src/env_windows_test.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl EnvWindowsTest {
[INFO] [stdout]    | ------------------- associated function in this implementation
[INFO] [stdout] 24 |
[INFO] [stdout] 25 |     pub fn set_file_limits(mmap_limit: i32)  {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `testenv_windows_test_main` is never used
[INFO] [stdout]   --> src/env_windows_test.rs:71:4
[INFO] [stdout]    |
[INFO] [stdout] 71 | fn testenv_windows_test_main (
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 80 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 05s
[INFO] running `Command { std: "docker" "inspect" "02520c1719af8817554de1f1bc1dfad2ebae9a8464f2dc07a1fdfb1946221d59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02520c1719af8817554de1f1bc1dfad2ebae9a8464f2dc07a1fdfb1946221d59", kill_on_drop: false }`
[INFO] [stdout] 02520c1719af8817554de1f1bc1dfad2ebae9a8464f2dc07a1fdfb1946221d59