[INFO] fetching crate bitcoinleveldb-memenv 0.1.16-alpha.0...
[INFO] checking bitcoinleveldb-memenv-0.1.16-alpha.0 against master#b0696a5160711c068cb1f01b7437db7990d15750 for pr-121848
[INFO] extracting crate bitcoinleveldb-memenv 0.1.16-alpha.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate bitcoinleveldb-memenv 0.1.16-alpha.0 on toolchain b0696a5160711c068cb1f01b7437db7990d15750
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bitcoinleveldb-memenv 0.1.16-alpha.0
[INFO] finished tweaking crates.io crate bitcoinleveldb-memenv 0.1.16-alpha.0
[INFO] tweaked toml for crates.io crate bitcoinleveldb-memenv 0.1.16-alpha.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+b0696a5160711c068cb1f01b7437db7990d15750" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3d0ee2088e32208ea66e455d806037fbaadb455b242e11870428de656f344867
[INFO] running `Command { std: "docker" "start" "-a" "3d0ee2088e32208ea66e455d806037fbaadb455b242e11870428de656f344867", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3d0ee2088e32208ea66e455d806037fbaadb455b242e11870428de656f344867", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d0ee2088e32208ea66e455d806037fbaadb455b242e11870428de656f344867", kill_on_drop: false }`
[INFO] [stdout] 3d0ee2088e32208ea66e455d806037fbaadb455b242e11870428de656f344867
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f8420fce8f3e1560207431ca2aac38df40dbc6f07b48548e1a18b1b6f3ba2e31
[INFO] running `Command { std: "docker" "start" "-a" "f8420fce8f3e1560207431ca2aac38df40dbc6f07b48548e1a18b1b6f3ba2e31", kill_on_drop: false }`
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[INFO] [stderr]     Checking bitcoin-imports v0.1.16-alpha.0
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[INFO] [stderr]    Compiling bitcoin-derive v0.1.16-alpha.0
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[INFO] [stderr]    Compiling bitcoinleveldb-status v0.1.16-alpha.0
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[INFO] [stderr]    Compiling bitcoinleveldb-rand v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoinleveldb-file 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
[INFO] [stderr]    Compiling bitcoinleveldb-memenv v0.1.16-alpha.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `argc`
[INFO] [stdout]    --> src/leveldb_helpers_memenv_memenv_test.rs:298:9
[INFO] [stdout]     |
[INFO] [stdout] 298 |         argc: i32,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_argc`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `argv`
[INFO] [stdout]    --> src/leveldb_helpers_memenv_memenv_test.rs:299:9
[INFO] [stdout]     |
[INFO] [stdout] 299 |         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: `offset`
[INFO] [stdout]    --> src/memenv.rs:108:9
[INFO] [stdout]     |
[INFO] [stdout] 108 |         offset:  u64,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_offset`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/memenv.rs:109:9
[INFO] [stdout]     |
[INFO] [stdout] 109 |         n:       usize,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]    --> src/memenv.rs:110:9
[INFO] [stdout]     |
[INFO] [stdout] 110 |         result:  *mut Slice,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scratch`
[INFO] [stdout]    --> src/memenv.rs:111:9
[INFO] [stdout]     |
[INFO] [stdout] 111 |         scratch: *mut u8) -> crate::Status {
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_scratch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/memenv.rs:152:30
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub fn append(&mut self, data: &Slice) -> crate::Status {
[INFO] [stdout]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `argc`
[INFO] [stdout]    --> src/leveldb_helpers_memenv_memenv_test.rs:298:9
[INFO] [stdout]     |
[INFO] [stdout] 298 |         argc: i32,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_argc`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `argv`
[INFO] [stdout]    --> src/leveldb_helpers_memenv_memenv_test.rs:299:9
[INFO] [stdout]     |
[INFO] [stdout] 299 |         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: `offset`
[INFO] [stdout]    --> src/memenv.rs:108:9
[INFO] [stdout]     |
[INFO] [stdout] 108 |         offset:  u64,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_offset`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/memenv.rs:213:9
[INFO] [stdout]     |
[INFO] [stdout] 213 |         n:       usize,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]    --> src/memenv.rs:214:9
[INFO] [stdout]     |
[INFO] [stdout] 214 |         result:  *mut Slice,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scratch`
[INFO] [stdout]    --> src/memenv.rs:215:9
[INFO] [stdout]     |
[INFO] [stdout] 215 |         scratch: *mut u8) -> crate::Status {
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_scratch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/memenv.rs:230:24
[INFO] [stdout]     |
[INFO] [stdout] 230 |     fn skip(&mut self, n: u64) -> crate::Status {
[INFO] [stdout]     |                        ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]    --> src/memenv.rs:269:16
[INFO] [stdout]     |
[INFO] [stdout] 269 |     pub fn new(file: *mut FileState) -> Self {
[INFO] [stdout]     |                ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `offset`
[INFO] [stdout]    --> src/memenv.rs:291:9
[INFO] [stdout]     |
[INFO] [stdout] 291 |         offset:  u64,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_offset`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/memenv.rs:292:9
[INFO] [stdout]     |
[INFO] [stdout] 292 |         n:       usize,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]    --> src/memenv.rs:293:9
[INFO] [stdout]     |
[INFO] [stdout] 293 |         result:  *mut Slice,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scratch`
[INFO] [stdout]    --> src/memenv.rs:294:9
[INFO] [stdout]     |
[INFO] [stdout] 294 |         scratch: *mut u8) -> crate::Status {
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_scratch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]    --> src/memenv.rs:325:16
[INFO] [stdout]     |
[INFO] [stdout] 325 |     pub fn new(file: *mut FileState) -> Self {
[INFO] [stdout]     |                ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]    --> src/memenv.rs:365:16
[INFO] [stdout]     |
[INFO] [stdout] 365 |     pub fn new(file: *mut FileState) -> Self {
[INFO] [stdout]     |                ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/memenv.rs:378:26
[INFO] [stdout]     |
[INFO] [stdout] 378 |     fn append(&mut self, data: &Slice) -> crate::Status {
[INFO] [stdout]     |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `format`
[INFO] [stdout]    --> src/memenv.rs:427:9
[INFO] [stdout]     |
[INFO] [stdout] 427 |         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: `ap`
[INFO] [stdout]    --> src/memenv.rs:428:9
[INFO] [stdout]     |
[INFO] [stdout] 428 |         ap:     &[&str])  { }
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_ap`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `base_env`
[INFO] [stdout]    --> src/memenv.rs:465:16
[INFO] [stdout]     |
[INFO] [stdout] 465 |     pub fn new(base_env: Rc<RefCell<dyn Env>>) -> Self {
[INFO] [stdout]     |                ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_base_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fname`
[INFO] [stdout]    --> src/memenv.rs:480:9
[INFO] [stdout]     |
[INFO] [stdout] 480 |         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/memenv.rs:481:9
[INFO] [stdout]     |
[INFO] [stdout] 481 |         result: *mut Rc<RefCell<dyn SequentialFile>>) -> crate::Status {
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fname`
[INFO] [stdout]    --> src/memenv.rs:497:9
[INFO] [stdout]     |
[INFO] [stdout] 497 |         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/memenv.rs:498:9
[INFO] [stdout]     |
[INFO] [stdout] 498 |         result: *mut *mut dyn RandomAccessFile) -> crate::Status {
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fname`
[INFO] [stdout]    --> src/memenv.rs:514:9
[INFO] [stdout]     |
[INFO] [stdout] 514 |         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/memenv.rs:515:9
[INFO] [stdout]     |
[INFO] [stdout] 515 |         result: *mut *mut 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: `fname`
[INFO] [stdout]    --> src/memenv.rs:539:9
[INFO] [stdout]     |
[INFO] [stdout] 539 |         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/memenv.rs:540:9
[INFO] [stdout]     |
[INFO] [stdout] 540 |         result: *mut *mut 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: `fname`
[INFO] [stdout]    --> src/memenv.rs:556:35
[INFO] [stdout]     |
[INFO] [stdout] 556 |     pub fn file_exists(&mut self, fname: &String) -> bool {
[INFO] [stdout]     |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_fname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dir`
[INFO] [stdout]    --> src/memenv.rs:566:9
[INFO] [stdout]     |
[INFO] [stdout] 566 |         dir:    &String,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_dir`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]    --> src/memenv.rs:567:9
[INFO] [stdout]     |
[INFO] [stdout] 567 |         result: *mut Vec<String>) -> crate::Status {
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fname`
[INFO] [stdout]    --> src/memenv.rs:588:44
[INFO] [stdout]     |
[INFO] [stdout] 588 |     pub fn delete_file_internal(&mut self, fname: &String)  {
[INFO] [stdout]     |                                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_fname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fname`
[INFO] [stdout]    --> src/memenv.rs:601:35
[INFO] [stdout]     |
[INFO] [stdout] 601 |     pub fn delete_file(&mut self, 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: `dirname`
[INFO] [stdout]    --> src/memenv.rs:615:34
[INFO] [stdout]     |
[INFO] [stdout] 615 |     pub fn create_dir(&mut self, dirname: &String) -> crate::Status {
[INFO] [stdout]     |                                  ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_dirname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dirname`
[INFO] [stdout]    --> src/memenv.rs:623:34
[INFO] [stdout]     |
[INFO] [stdout] 623 |     pub fn delete_dir(&mut self, dirname: &String) -> crate::Status {
[INFO] [stdout]     |                                  ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_dirname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fname`
[INFO] [stdout]    --> src/memenv.rs:632:9
[INFO] [stdout]     |
[INFO] [stdout] 632 |         fname:     &String,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_fname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/memenv.rs:109:9
[INFO] [stdout]     |
[INFO] [stdout] 109 |         n:       usize,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]    --> src/memenv.rs:110:9
[INFO] [stdout]     |
[INFO] [stdout] 110 |         result:  *mut Slice,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scratch`
[INFO] [stdout]    --> src/memenv.rs:111:9
[INFO] [stdout]     |
[INFO] [stdout] 111 |         scratch: *mut u8) -> crate::Status {
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_scratch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/memenv.rs:152:30
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub fn append(&mut self, data: &Slice) -> crate::Status {
[INFO] [stdout]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/memenv.rs:213:9
[INFO] [stdout]     |
[INFO] [stdout] 213 |         n:       usize,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]    --> src/memenv.rs:214:9
[INFO] [stdout]     |
[INFO] [stdout] 214 |         result:  *mut Slice,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scratch`
[INFO] [stdout]    --> src/memenv.rs:215:9
[INFO] [stdout]     |
[INFO] [stdout] 215 |         scratch: *mut u8) -> crate::Status {
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_scratch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/memenv.rs:230:24
[INFO] [stdout]     |
[INFO] [stdout] 230 |     fn skip(&mut self, n: u64) -> crate::Status {
[INFO] [stdout]     |                        ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]    --> src/memenv.rs:269:16
[INFO] [stdout]     |
[INFO] [stdout] 269 |     pub fn new(file: *mut FileState) -> Self {
[INFO] [stdout]     |                ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `offset`
[INFO] [stdout]    --> src/memenv.rs:291:9
[INFO] [stdout]     |
[INFO] [stdout] 291 |         offset:  u64,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_offset`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/memenv.rs:292:9
[INFO] [stdout]     |
[INFO] [stdout] 292 |         n:       usize,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]    --> src/memenv.rs:293:9
[INFO] [stdout]     |
[INFO] [stdout] 293 |         result:  *mut Slice,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scratch`
[INFO] [stdout]    --> src/memenv.rs:294:9
[INFO] [stdout]     |
[INFO] [stdout] 294 |         scratch: *mut u8) -> crate::Status {
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_scratch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]    --> src/memenv.rs:325:16
[INFO] [stdout]     |
[INFO] [stdout] 325 |     pub fn new(file: *mut FileState) -> Self {
[INFO] [stdout]     |                ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]    --> src/memenv.rs:365:16
[INFO] [stdout]     |
[INFO] [stdout] 365 |     pub fn new(file: *mut FileState) -> Self {
[INFO] [stdout]     |                ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/memenv.rs:378:26
[INFO] [stdout]     |
[INFO] [stdout] 378 |     fn append(&mut self, data: &Slice) -> crate::Status {
[INFO] [stdout]     |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `format`
[INFO] [stdout]    --> src/memenv.rs:427:9
[INFO] [stdout]     |
[INFO] [stdout] 427 |         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: `ap`
[INFO] [stdout]    --> src/memenv.rs:428:9
[INFO] [stdout]     |
[INFO] [stdout] 428 |         ap:     &[&str])  { }
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_ap`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `base_env`
[INFO] [stdout]    --> src/memenv.rs:465:16
[INFO] [stdout]     |
[INFO] [stdout] 465 |     pub fn new(base_env: Rc<RefCell<dyn Env>>) -> Self {
[INFO] [stdout]     |                ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_base_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fname`
[INFO] [stdout]    --> src/memenv.rs:480:9
[INFO] [stdout]     |
[INFO] [stdout] 480 |         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/memenv.rs:481:9
[INFO] [stdout]     |
[INFO] [stdout] 481 |         result: *mut Rc<RefCell<dyn SequentialFile>>) -> crate::Status {
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fname`
[INFO] [stdout]    --> src/memenv.rs:497:9
[INFO] [stdout]     |
[INFO] [stdout] 497 |         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/memenv.rs:498:9
[INFO] [stdout]     |
[INFO] [stdout] 498 |         result: *mut *mut dyn RandomAccessFile) -> crate::Status {
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fname`
[INFO] [stdout]    --> src/memenv.rs:514:9
[INFO] [stdout]     |
[INFO] [stdout] 514 |         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/memenv.rs:515:9
[INFO] [stdout]     |
[INFO] [stdout] 515 |         result: *mut *mut 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: `file_size`
[INFO] [stdout]    --> src/memenv.rs:633:9
[INFO] [stdout]     |
[INFO] [stdout] 633 |         file_size: *mut u64) -> crate::Status {
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `src`
[INFO] [stdout]    --> src/memenv.rs:648:9
[INFO] [stdout]     |
[INFO] [stdout] 648 |         src:    &String,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_src`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fname`
[INFO] [stdout]    --> src/memenv.rs:539:9
[INFO] [stdout]     |
[INFO] [stdout] 539 |         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/memenv.rs:540:9
[INFO] [stdout]     |
[INFO] [stdout] 540 |         result: *mut *mut 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: `fname`
[INFO] [stdout]    --> src/memenv.rs:556:35
[INFO] [stdout]     |
[INFO] [stdout] 556 |     pub fn file_exists(&mut self, fname: &String) -> bool {
[INFO] [stdout]     |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_fname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dir`
[INFO] [stdout]    --> src/memenv.rs:566:9
[INFO] [stdout]     |
[INFO] [stdout] 566 |         dir:    &String,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_dir`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]    --> src/memenv.rs:567:9
[INFO] [stdout]     |
[INFO] [stdout] 567 |         result: *mut Vec<String>) -> crate::Status {
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fname`
[INFO] [stdout]    --> src/memenv.rs:588:44
[INFO] [stdout]     |
[INFO] [stdout] 588 |     pub fn delete_file_internal(&mut self, fname: &String)  {
[INFO] [stdout]     |                                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_fname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fname`
[INFO] [stdout]    --> src/memenv.rs:601:35
[INFO] [stdout]     |
[INFO] [stdout] 601 |     pub fn delete_file(&mut self, 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: `target`
[INFO] [stdout]    --> src/memenv.rs:649:9
[INFO] [stdout]     |
[INFO] [stdout] 649 |         target: &String) -> crate::Status {
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_target`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dirname`
[INFO] [stdout]    --> src/memenv.rs:615:34
[INFO] [stdout]     |
[INFO] [stdout] 615 |     pub fn create_dir(&mut self, dirname: &String) -> crate::Status {
[INFO] [stdout]     |                                  ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_dirname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fname`
[INFO] [stdout]    --> src/memenv.rs:666:9
[INFO] [stdout]     |
[INFO] [stdout] 666 |         fname: &String,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_fname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lock`
[INFO] [stdout]    --> src/memenv.rs:667:9
[INFO] [stdout]     |
[INFO] [stdout] 667 |         lock:  *mut *mut dyn FileLock) -> crate::Status {
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_lock`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lock`
[INFO] [stdout]    --> src/memenv.rs:676:35
[INFO] [stdout]     |
[INFO] [stdout] 676 |     pub fn unlock_file(&mut self, lock: *mut dyn FileLock) -> crate::Status {
[INFO] [stdout]     |                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_lock`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dirname`
[INFO] [stdout]    --> src/memenv.rs:623:34
[INFO] [stdout]     |
[INFO] [stdout] 623 |     pub fn delete_dir(&mut self, dirname: &String) -> crate::Status {
[INFO] [stdout]     |                                  ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_dirname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `path`
[INFO] [stdout]    --> src/memenv.rs:685:42
[INFO] [stdout]     |
[INFO] [stdout] 685 |     pub 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/memenv.rs:695:9
[INFO] [stdout]     |
[INFO] [stdout] 695 |         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/memenv.rs:696:9
[INFO] [stdout]     |
[INFO] [stdout] 696 |         result: *mut *mut 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: `base_env`
[INFO] [stdout]    --> src/memenv.rs:713:20
[INFO] [stdout]     |
[INFO] [stdout] 713 | pub fn new_mem_env(base_env: Rc<RefCell<dyn Env>>) -> Rc<RefCell<dyn Env>> {
[INFO] [stdout]     |                    ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_base_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fname`
[INFO] [stdout]    --> src/memenv.rs:632:9
[INFO] [stdout]     |
[INFO] [stdout] 632 |         fname:     &String,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_fname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file_size`
[INFO] [stdout]    --> src/memenv.rs:633:9
[INFO] [stdout]     |
[INFO] [stdout] 633 |         file_size: *mut u64) -> crate::Status {
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `src`
[INFO] [stdout]    --> src/memenv.rs:648:9
[INFO] [stdout]     |
[INFO] [stdout] 648 |         src:    &String,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_src`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target`
[INFO] [stdout]    --> src/memenv.rs:649:9
[INFO] [stdout]     |
[INFO] [stdout] 649 |         target: &String) -> crate::Status {
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_target`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fname`
[INFO] [stdout]    --> src/memenv.rs:666:9
[INFO] [stdout]     |
[INFO] [stdout] 666 |         fname: &String,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_fname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lock`
[INFO] [stdout]    --> src/memenv.rs:667:9
[INFO] [stdout]     |
[INFO] [stdout] 667 |         lock:  *mut *mut dyn FileLock) -> crate::Status {
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_lock`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `env` is never read
[INFO] [stdout]  --> src/leveldb_helpers_memenv_memenv_test.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct MemEnvTest {
[INFO] [stdout]   |        ---------- field in this struct
[INFO] [stdout] 6 |     env: Rc<RefCell<dyn Env>>,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `testleveldb_helpers_memenv_memenv_test_main` is never used
[INFO] [stdout]    --> src/leveldb_helpers_memenv_memenv_test.rs:297:4
[INFO] [stdout]     |
[INFO] [stdout] 297 | fn testleveldb_helpers_memenv_memenv_test_main (
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `refs_mutex` and `blocks_mutex` are never read
[INFO] [stdout]  --> src/memenv.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct FileState {
[INFO] [stdout]   |            --------- fields in this struct
[INFO] [stdout] 8 |     refs_mutex:   Mutex<FileStateRefs>,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 9 |     blocks_mutex: RefCell<Mutex<FileStateBlocks>>,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `refs` is never read
[INFO] [stdout]   --> src/memenv.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct FileStateRefs {
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] 16 |     refs: i32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `blocks` and `size` are never read
[INFO] [stdout]   --> src/memenv.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct FileStateBlocks {
[INFO] [stdout]    |            --------------- fields in this struct
[INFO] [stdout] 21 |     blocks: Vec<*mut u8>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 22 |     size:   u64,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `file` and `pos` are never read
[INFO] [stdout]    --> src/memenv.rs:204:5
[INFO] [stdout]     |
[INFO] [stdout] 203 | pub struct SequentialFileImpl {
[INFO] [stdout]     |            ------------------ fields in this struct
[INFO] [stdout] 204 |     file: *mut FileState,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 205 |     pos:  u64,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `file` is never read
[INFO] [stdout]    --> src/memenv.rs:283:5
[INFO] [stdout]     |
[INFO] [stdout] 282 | pub struct RandomAccessFileImpl {
[INFO] [stdout]     |            -------------------- field in this struct
[INFO] [stdout] 283 |     file: *mut FileState,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lock`
[INFO] [stdout]    --> src/memenv.rs:676:35
[INFO] [stdout]     |
[INFO] [stdout] 676 |     pub fn unlock_file(&mut self, lock: *mut dyn FileLock) -> crate::Status {
[INFO] [stdout]     |                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_lock`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `file` is never read
[INFO] [stdout]    --> src/memenv.rs:338:5
[INFO] [stdout]     |
[INFO] [stdout] 337 | pub struct WritableFileImpl {
[INFO] [stdout]     |            ---------------- field in this struct
[INFO] [stdout] 338 |     file: *mut FileState,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `base` and `mutex` are never read
[INFO] [stdout]    --> src/memenv.rs:433:5
[INFO] [stdout]     |
[INFO] [stdout] 432 | pub struct InMemoryEnv {
[INFO] [stdout]     |            ----------- fields in this struct
[INFO] [stdout] 433 |     base:     EnvWrapper,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 434 |     mutex:    Mutex<in_memory_env::Inner>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `file_map` is never read
[INFO] [stdout]    --> src/memenv.rs:441:9
[INFO] [stdout]     |
[INFO] [stdout] 440 |     pub struct Inner {
[INFO] [stdout]     |                ----- field in this struct
[INFO] [stdout] 441 |         file_map: FileSystem,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `path`
[INFO] [stdout]    --> src/memenv.rs:685:42
[INFO] [stdout]     |
[INFO] [stdout] 685 |     pub 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/memenv.rs:695:9
[INFO] [stdout]     |
[INFO] [stdout] 695 |         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/memenv.rs:696:9
[INFO] [stdout]     |
[INFO] [stdout] 696 |         result: *mut *mut 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: `base_env`
[INFO] [stdout]    --> src/memenv.rs:713:20
[INFO] [stdout]     |
[INFO] [stdout] 713 | pub fn new_mem_env(base_env: Rc<RefCell<dyn Env>>) -> Rc<RefCell<dyn Env>> {
[INFO] [stdout]     |                    ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_base_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `env` is never read
[INFO] [stdout]  --> src/leveldb_helpers_memenv_memenv_test.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct MemEnvTest {
[INFO] [stdout]   |        ---------- field in this struct
[INFO] [stdout] 6 |     env: Rc<RefCell<dyn Env>>,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `testleveldb_helpers_memenv_memenv_test_main` is never used
[INFO] [stdout]    --> src/leveldb_helpers_memenv_memenv_test.rs:297:4
[INFO] [stdout]     |
[INFO] [stdout] 297 | fn testleveldb_helpers_memenv_memenv_test_main (
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `refs_mutex` and `blocks_mutex` are never read
[INFO] [stdout]  --> src/memenv.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct FileState {
[INFO] [stdout]   |            --------- fields in this struct
[INFO] [stdout] 8 |     refs_mutex:   Mutex<FileStateRefs>,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 9 |     blocks_mutex: RefCell<Mutex<FileStateBlocks>>,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `refs` is never read
[INFO] [stdout]   --> src/memenv.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct FileStateRefs {
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] 16 |     refs: i32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `blocks` and `size` are never read
[INFO] [stdout]   --> src/memenv.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct FileStateBlocks {
[INFO] [stdout]    |            --------------- fields in this struct
[INFO] [stdout] 21 |     blocks: Vec<*mut u8>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 22 |     size:   u64,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `file` and `pos` are never read
[INFO] [stdout]    --> src/memenv.rs:204:5
[INFO] [stdout]     |
[INFO] [stdout] 203 | pub struct SequentialFileImpl {
[INFO] [stdout]     |            ------------------ fields in this struct
[INFO] [stdout] 204 |     file: *mut FileState,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 205 |     pos:  u64,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `file` is never read
[INFO] [stdout]    --> src/memenv.rs:283:5
[INFO] [stdout]     |
[INFO] [stdout] 282 | pub struct RandomAccessFileImpl {
[INFO] [stdout]     |            -------------------- field in this struct
[INFO] [stdout] 283 |     file: *mut FileState,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `file` is never read
[INFO] [stdout]    --> src/memenv.rs:338:5
[INFO] [stdout]     |
[INFO] [stdout] 337 | pub struct WritableFileImpl {
[INFO] [stdout]     |            ---------------- field in this struct
[INFO] [stdout] 338 |     file: *mut FileState,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `base` and `mutex` are never read
[INFO] [stdout]    --> src/memenv.rs:433:5
[INFO] [stdout]     |
[INFO] [stdout] 432 | pub struct InMemoryEnv {
[INFO] [stdout]     |            ----------- fields in this struct
[INFO] [stdout] 433 |     base:     EnvWrapper,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 434 |     mutex:    Mutex<in_memory_env::Inner>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `file_map` is never read
[INFO] [stdout]    --> src/memenv.rs:441:9
[INFO] [stdout]     |
[INFO] [stdout] 440 |     pub struct Inner {
[INFO] [stdout]     |                ----- field in this struct
[INFO] [stdout] 441 |         file_map: FileSystem,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 58 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 58 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 51s
[INFO] running `Command { std: "docker" "inspect" "f8420fce8f3e1560207431ca2aac38df40dbc6f07b48548e1a18b1b6f3ba2e31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8420fce8f3e1560207431ca2aac38df40dbc6f07b48548e1a18b1b6f3ba2e31", kill_on_drop: false }`
[INFO] [stdout] f8420fce8f3e1560207431ca2aac38df40dbc6f07b48548e1a18b1b6f3ba2e31
