[INFO] fetching crate bitcoinleveldb-file 0.1.16-alpha.0...
[INFO] checking bitcoinleveldb-file-0.1.16-alpha.0 against master#4457658f68b5c165cd76d24b8147a8f77b9f660e for pr-107620
[INFO] extracting crate bitcoinleveldb-file 0.1.16-alpha.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate bitcoinleveldb-file 0.1.16-alpha.0 on toolchain 4457658f68b5c165cd76d24b8147a8f77b9f660e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4457658f68b5c165cd76d24b8147a8f77b9f660e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bitcoinleveldb-file 0.1.16-alpha.0
[INFO] finished tweaking crates.io crate bitcoinleveldb-file 0.1.16-alpha.0
[INFO] tweaked toml for crates.io crate bitcoinleveldb-file 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" "+4457658f68b5c165cd76d24b8147a8f77b9f660e" "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" "+4457658f68b5c165cd76d24b8147a8f77b9f660e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+4457658f68b5c165cd76d24b8147a8f77b9f660e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d4f018b11f6aec9cb0494e916c87d8c443d84e6c42e8ac370f31eed18d327b79
[INFO] running `Command { std: "docker" "start" "-a" "d4f018b11f6aec9cb0494e916c87d8c443d84e6c42e8ac370f31eed18d327b79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d4f018b11f6aec9cb0494e916c87d8c443d84e6c42e8ac370f31eed18d327b79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4f018b11f6aec9cb0494e916c87d8c443d84e6c42e8ac370f31eed18d327b79", kill_on_drop: false }`
[INFO] [stdout] d4f018b11f6aec9cb0494e916c87d8c443d84e6c42e8ac370f31eed18d327b79
[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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+4457658f68b5c165cd76d24b8147a8f77b9f660e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf29483f0b5c8fa9c0d86765e5c1d34d56ebec7d38d4d2bc8bd48b8160a2c278
[INFO] running `Command { std: "docker" "start" "-a" "bf29483f0b5c8fa9c0d86765e5c1d34d56ebec7d38d4d2bc8bd48b8160a2c278", 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 (/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 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: `argc`
[INFO] [stdout]    --> src/filename_test.rs:133:9
[INFO] [stdout]     |
[INFO] [stdout] 133 |         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/filename_test.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |         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: `dbname`
[INFO] [stdout]   --> src/filename.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |         dbname: &String,
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_dbname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `number`
[INFO] [stdout]   --> src/filename.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |         number: u64,
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `suffix`
[INFO] [stdout]   --> src/filename.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         suffix: *const u8) -> String {
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_suffix`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dbname`
[INFO] [stdout]   --> src/filename.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         dbname: &String,
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_dbname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `number`
[INFO] [stdout]   --> src/filename.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |         number: u64) -> String {
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dbname`
[INFO] [stdout]   --> src/filename.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |         dbname: &String,
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_dbname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `number`
[INFO] [stdout]   --> src/filename.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |         number: u64) -> String {
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dbname`
[INFO] [stdout]   --> src/filename.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |         dbname: &String,
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_dbname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `number`
[INFO] [stdout]   --> src/filename.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 80 |         number: u64) -> String {
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dbname`
[INFO] [stdout]   --> src/filename.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |         dbname: &String,
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_dbname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `number`
[INFO] [stdout]   --> src/filename.rs:97:9
[INFO] [stdout]    |
[INFO] [stdout] 97 |         number: u64) -> String {
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dbname`
[INFO] [stdout]    --> src/filename.rs:117:26
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub fn current_file_name(dbname: &String) -> String {
[INFO] [stdout]     |                          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_dbname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dbname`
[INFO] [stdout]    --> src/filename.rs:131:23
[INFO] [stdout]     |
[INFO] [stdout] 131 | pub fn lock_file_name(dbname: &String) -> String {
[INFO] [stdout]     |                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_dbname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dbname`
[INFO] [stdout]    --> src/filename.rs:146:9
[INFO] [stdout]     |
[INFO] [stdout] 146 |         dbname: &String,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_dbname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `number`
[INFO] [stdout]    --> src/filename.rs:147:9
[INFO] [stdout]     |
[INFO] [stdout] 147 |         number: u64) -> String {
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dbname`
[INFO] [stdout]    --> src/filename.rs:161:27
[INFO] [stdout]     |
[INFO] [stdout] 161 | pub fn info_log_file_name(dbname: &String) -> String {
[INFO] [stdout]     |                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_dbname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dbname`
[INFO] [stdout]    --> src/filename.rs:174:31
[INFO] [stdout]     |
[INFO] [stdout] 174 | pub fn old_info_log_file_name(dbname: &String) -> String {
[INFO] [stdout]     |                               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_dbname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filename`
[INFO] [stdout]    --> src/filename.rs:200:9
[INFO] [stdout]     |
[INFO] [stdout] 200 |         filename: &String,
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filename`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `number`
[INFO] [stdout]    --> src/filename.rs:201:9
[INFO] [stdout]     |
[INFO] [stdout] 201 |         number:   *mut u64,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty`
[INFO] [stdout]    --> src/filename.rs:202:9
[INFO] [stdout]     |
[INFO] [stdout] 202 |         ty:       *mut FileType) -> bool {
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_ty`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dest`
[INFO] [stdout]    --> src/file.rs:336:13
[INFO] [stdout]     |
[INFO] [stdout] 336 |     fn from(dest: Rc<RefCell<dyn WritableFile>>) -> Self {
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_dest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `argc`
[INFO] [stdout]    --> src/filename_test.rs:133:9
[INFO] [stdout]     |
[INFO] [stdout] 133 |         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/filename_test.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |         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: `dbname`
[INFO] [stdout]   --> src/filename.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |         dbname: &String,
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_dbname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `number`
[INFO] [stdout]   --> src/filename.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |         number: u64,
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `suffix`
[INFO] [stdout]   --> src/filename.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         suffix: *const u8) -> String {
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_suffix`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dbname`
[INFO] [stdout]   --> src/filename.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         dbname: &String,
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_dbname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `number`
[INFO] [stdout]   --> src/filename.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |         number: u64) -> String {
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dbname`
[INFO] [stdout]   --> src/filename.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |         dbname: &String,
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_dbname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `number`
[INFO] [stdout]   --> src/filename.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |         number: u64) -> String {
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dbname`
[INFO] [stdout]   --> src/filename.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |         dbname: &String,
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_dbname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `number`
[INFO] [stdout]   --> src/filename.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 80 |         number: u64) -> String {
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dbname`
[INFO] [stdout]   --> src/filename.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |         dbname: &String,
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_dbname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `number`
[INFO] [stdout]   --> src/filename.rs:97:9
[INFO] [stdout]    |
[INFO] [stdout] 97 |         number: u64) -> String {
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dbname`
[INFO] [stdout]    --> src/filename.rs:117:26
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub fn current_file_name(dbname: &String) -> String {
[INFO] [stdout]     |                          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_dbname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dbname`
[INFO] [stdout]    --> src/filename.rs:131:23
[INFO] [stdout]     |
[INFO] [stdout] 131 | pub fn lock_file_name(dbname: &String) -> String {
[INFO] [stdout]     |                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_dbname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dbname`
[INFO] [stdout]    --> src/filename.rs:146:9
[INFO] [stdout]     |
[INFO] [stdout] 146 |         dbname: &String,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_dbname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `number`
[INFO] [stdout]    --> src/filename.rs:147:9
[INFO] [stdout]     |
[INFO] [stdout] 147 |         number: u64) -> String {
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dbname`
[INFO] [stdout]    --> src/filename.rs:161:27
[INFO] [stdout]     |
[INFO] [stdout] 161 | pub fn info_log_file_name(dbname: &String) -> String {
[INFO] [stdout]     |                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_dbname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dbname`
[INFO] [stdout]    --> src/filename.rs:174:31
[INFO] [stdout]     |
[INFO] [stdout] 174 | pub fn old_info_log_file_name(dbname: &String) -> String {
[INFO] [stdout]     |                               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_dbname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filename`
[INFO] [stdout]    --> src/filename.rs:200:9
[INFO] [stdout]     |
[INFO] [stdout] 200 |         filename: &String,
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filename`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `number`
[INFO] [stdout]    --> src/filename.rs:201:9
[INFO] [stdout]     |
[INFO] [stdout] 201 |         number:   *mut u64,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty`
[INFO] [stdout]    --> src/filename.rs:202:9
[INFO] [stdout]     |
[INFO] [stdout] 202 |         ty:       *mut FileType) -> bool {
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_ty`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dest`
[INFO] [stdout]    --> src/file.rs:336:13
[INFO] [stdout]     |
[INFO] [stdout] 336 |     fn from(dest: Rc<RefCell<dyn WritableFile>>) -> Self {
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_dest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/stdout.rs:23:26
[INFO] [stdout]    |
[INFO] [stdout] 23 |     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: `data`
[INFO] [stdout]   --> src/stdout.rs:23:26
[INFO] [stdout]    |
[INFO] [stdout] 23 |     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: struct `FileNameTest` is never constructed
[INFO] [stdout]  --> src/filename_test.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct FileNameTest {}
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dbfilename_test_main` is never used
[INFO] [stdout]    --> src/filename_test.rs:132:4
[INFO] [stdout]     |
[INFO] [stdout] 132 | fn dbfilename_test_main (
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FileNameTest` is never constructed
[INFO] [stdout]  --> src/filename_test.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct FileNameTest {}
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dbfilename_test_main` is never used
[INFO] [stdout]    --> src/filename_test.rs:132:4
[INFO] [stdout]     |
[INFO] [stdout] 132 | fn dbfilename_test_main (
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `refs`, `allowed_seeks`, `number`, `file_size`, `smallest`, and `largest` are never read
[INFO] [stdout]   --> src/metadata.rs:5:5
[INFO] [stdout]    |
[INFO] [stdout] 3  | pub struct FileMetaData {
[INFO] [stdout]    |            ------------ fields in this struct
[INFO] [stdout] 4  |
[INFO] [stdout] 5  |     refs:          i32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 11 |     allowed_seeks: i32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 12 |
[INFO] [stdout] 13 |     number:        u64,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     file_size:     u64,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     smallest:      InternalKey,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     largest:       InternalKey,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `refs`, `allowed_seeks`, `number`, `file_size`, `smallest`, and `largest` are never read
[INFO] [stdout]   --> src/metadata.rs:5:5
[INFO] [stdout]    |
[INFO] [stdout] 3  | pub struct FileMetaData {
[INFO] [stdout]    |            ------------ fields in this struct
[INFO] [stdout] 4  |
[INFO] [stdout] 5  |     refs:          i32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 11 |     allowed_seeks: i32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 12 |
[INFO] [stdout] 13 |     number:        u64,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     file_size:     u64,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     smallest:      InternalKey,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     largest:       InternalKey,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 28 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 28 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 59s
[INFO] running `Command { std: "docker" "inspect" "bf29483f0b5c8fa9c0d86765e5c1d34d56ebec7d38d4d2bc8bd48b8160a2c278", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf29483f0b5c8fa9c0d86765e5c1d34d56ebec7d38d4d2bc8bd48b8160a2c278", kill_on_drop: false }`
[INFO] [stdout] bf29483f0b5c8fa9c0d86765e5c1d34d56ebec7d38d4d2bc8bd48b8160a2c278