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[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/crwen/ckv-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrwen%2Fckv-rust", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d1d4567b9eb28c0575f4079d7160b8e93111c61e
[INFO] checking crwen/ckv-rust against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrwen%2Fckv-rust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
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[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/crwen/ckv-rust on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/crwen/ckv-rust
[INFO] finished tweaking git repo https://github.com/crwen/ckv-rust
[INFO] tweaked toml for git repo https://github.com/crwen/ckv-rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/crwen/ckv-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]     Checking rayon-core v1.12.1
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[INFO] [stderr]     Checking textwrap v0.16.1
[INFO] [stderr]     Checking atty v0.2.14
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[INFO] [stdout] warning: struct `GCState` is never constructed
[INFO] [stdout]   --> src/compactor.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub struct GCState {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `L0Task` is never constructed
[INFO] [stdout]   --> src/compactor.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub struct L0Task {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `L0Task` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `execute` is never used
[INFO] [stdout]   --> src/compactor.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 55 | impl L0Task {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] 56 |     pub fn execute(&self, opt: Options) -> VersionEdit {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ReadableFile` is never used
[INFO] [stdout]   --> src/file/mod.rs:60:10
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub enum ReadableFile {
[INFO] [stdout]    |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `WritableFile` is never used
[INFO] [stdout]   --> src/file/mod.rs:65:10
[INFO] [stdout]    |
[INFO] [stdout] 65 | pub enum WritableFile {
[INFO] [stdout]    |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `write_wal` is never used
[INFO] [stdout]    --> src/lsm.rs:175:8
[INFO] [stdout]     |
[INFO] [stdout] 68  | impl LsmInner {
[INFO] [stdout]     | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 175 |     fn write_wal(&self, key: &[u8], value: &[u8], seq: u64) -> Result<()> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `tag` is never used
[INFO] [stdout]   --> src/mem_table.rs:87:12
[INFO] [stdout]    |
[INFO] [stdout] 63 | impl Key {
[INFO] [stdout]    | -------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 87 |     pub fn tag(key: &[u8]) -> &[u8] {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `colse` is never used
[INFO] [stdout]    --> src/mem_table.rs:180:12
[INFO] [stdout]     |
[INFO] [stdout] 115 | impl MemTable {
[INFO] [stdout]     | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 180 |     pub fn colse(&self) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `key` and `value` are never used
[INFO] [stdout]    --> src/mem_table.rs:279:12
[INFO] [stdout]     |
[INFO] [stdout] 268 | impl<'a> MemTableIterator<'a> {
[INFO] [stdout]     | ----------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 279 |     pub fn key(&self) -> &[u8] {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 283 |     pub fn value(&self) -> &[u8] {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `DecodeBlockError` is never constructed
[INFO] [stdout]   --> src/sstable/mod.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub enum TableError {
[INFO] [stdout]    |          ---------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 20 |     DecodeBlockError,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TableError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `u64_to_bytes` is never used
[INFO] [stdout]  --> src/utils/convert.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn u64_to_bytes(data: u64) -> Vec<u8> {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `with_range`, `with_internal_range`, `allow_seek`, and `number` are never used
[INFO] [stdout]   --> src/version/mod.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl FileMetaData {
[INFO] [stdout]    | ----------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 48 |     pub fn with_range(number: u64, smallest: &[u8], largest: &[u8]) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub fn with_internal_range(number: u64, smallest: InternalKey, largest: InternalKey) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 81 |     pub fn allow_seek(&self) -> u32 {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 90 |     pub fn number(&self) -> u64 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `add_vlogs` and `delete_vlogs` are never read
[INFO] [stdout]   --> src/version/version_edit.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub struct VersionEdit {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 57 |     pub add_vlogs: Vec<u64>,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 58 |     pub delete_vlogs: Vec<u64>,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `VersionEdit` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `files` and `level_files` are never used
[INFO] [stdout]    --> src/version/version_set.rs:120:12
[INFO] [stdout]     |
[INFO] [stdout] 52  | impl Version {
[INFO] [stdout]     | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 120 |     pub fn files(&self) -> &Vec<Vec<FileMetaData>> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 124 |     pub fn level_files(&self, level: usize) -> &Vec<FileMetaData> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `do_gc` is never used
[INFO] [stdout]    --> src/version/version_set.rs:772:12
[INFO] [stdout]     |
[INFO] [stdout] 338 | impl VersionSet {
[INFO] [stdout]     | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 772 |     pub fn do_gc(&self, meta: &mut FileMetaData) -> Result<Option<GCState>> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking serde_json v1.0.109
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.4.0
[INFO] [stdout] warning: struct `GCState` is never constructed
[INFO] [stdout]   --> src/compactor.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub struct GCState {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `L0Task` is never constructed
[INFO] [stdout]   --> src/compactor.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub struct L0Task {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `L0Task` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `execute` is never used
[INFO] [stdout]   --> src/compactor.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 55 | impl L0Task {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] 56 |     pub fn execute(&self, opt: Options) -> VersionEdit {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ReadableFile` is never used
[INFO] [stdout]   --> src/file/mod.rs:60:10
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub enum ReadableFile {
[INFO] [stdout]    |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `WritableFile` is never used
[INFO] [stdout]   --> src/file/mod.rs:65:10
[INFO] [stdout]    |
[INFO] [stdout] 65 | pub enum WritableFile {
[INFO] [stdout]    |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `write_wal` is never used
[INFO] [stdout]    --> src/lsm.rs:175:8
[INFO] [stdout]     |
[INFO] [stdout] 68  | impl LsmInner {
[INFO] [stdout]     | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 175 |     fn write_wal(&self, key: &[u8], value: &[u8], seq: u64) -> Result<()> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `tag` is never used
[INFO] [stdout]   --> src/mem_table.rs:87:12
[INFO] [stdout]    |
[INFO] [stdout] 63 | impl Key {
[INFO] [stdout]    | -------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 87 |     pub fn tag(key: &[u8]) -> &[u8] {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `colse` is never used
[INFO] [stdout]    --> src/mem_table.rs:180:12
[INFO] [stdout]     |
[INFO] [stdout] 115 | impl MemTable {
[INFO] [stdout]     | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 180 |     pub fn colse(&self) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `key` and `value` are never used
[INFO] [stdout]    --> src/mem_table.rs:279:12
[INFO] [stdout]     |
[INFO] [stdout] 268 | impl<'a> MemTableIterator<'a> {
[INFO] [stdout]     | ----------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 279 |     pub fn key(&self) -> &[u8] {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 283 |     pub fn value(&self) -> &[u8] {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `DecodeBlockError` is never constructed
[INFO] [stdout]   --> src/sstable/mod.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub enum TableError {
[INFO] [stdout]    |          ---------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 20 |     DecodeBlockError,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TableError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `u64_to_bytes` is never used
[INFO] [stdout]  --> src/utils/convert.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn u64_to_bytes(data: u64) -> Vec<u8> {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `with_range`, `with_internal_range`, `allow_seek`, and `number` are never used
[INFO] [stdout]   --> src/version/mod.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl FileMetaData {
[INFO] [stdout]    | ----------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 48 |     pub fn with_range(number: u64, smallest: &[u8], largest: &[u8]) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub fn with_internal_range(number: u64, smallest: InternalKey, largest: InternalKey) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 81 |     pub fn allow_seek(&self) -> u32 {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 90 |     pub fn number(&self) -> u64 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `add_vlogs` and `delete_vlogs` are never read
[INFO] [stdout]   --> src/version/version_edit.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub struct VersionEdit {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 57 |     pub add_vlogs: Vec<u64>,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 58 |     pub delete_vlogs: Vec<u64>,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `VersionEdit` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `files` and `level_files` are never used
[INFO] [stdout]    --> src/version/version_set.rs:120:12
[INFO] [stdout]     |
[INFO] [stdout] 52  | impl Version {
[INFO] [stdout]     | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 120 |     pub fn files(&self) -> &Vec<Vec<FileMetaData>> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 124 |     pub fn level_files(&self, level: usize) -> &Vec<FileMetaData> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `do_gc` is never used
[INFO] [stdout]    --> src/version/version_set.rs:772:12
[INFO] [stdout]     |
[INFO] [stdout] 338 | impl VersionSet {
[INFO] [stdout]     | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 772 |     pub fn do_gc(&self, meta: &mut FileMetaData) -> Result<Option<GCState>> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.64s
[INFO] running `Command { std: "docker" "inspect" "78b153e90f11a638c9d8081e154270e9fe4cacae27ce254524ae07e3c58cb296", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78b153e90f11a638c9d8081e154270e9fe4cacae27ce254524ae07e3c58cb296", kill_on_drop: false }`
[INFO] [stdout] 78b153e90f11a638c9d8081e154270e9fe4cacae27ce254524ae07e3c58cb296
[INFO] checking crwen/ckv-rust against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrwen%2Fckv-rust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/crwen/ckv-rust on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/crwen/ckv-rust
[INFO] finished tweaking git repo https://github.com/crwen/ckv-rust
[INFO] tweaked toml for git repo https://github.com/crwen/ckv-rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/crwen/ckv-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 82 packages to latest compatible versions
[INFO] [stderr]       Adding aho-corasick v1.1.3
[INFO] [stderr]       Adding anes v0.1.6 (latest: v0.2.0)
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[INFO] [stderr]       Adding criterion v0.4.0 (latest: v0.5.1)
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[INFO] [stderr]       Adding crossbeam-deque v0.8.3 (latest: v0.8.5)
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[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 999c10acf914323689ba0c5c3284ec74000e85a5b19ac9cd8e14d1b21731b726
[INFO] running `Command { std: "docker" "start" "-a" "999c10acf914323689ba0c5c3284ec74000e85a5b19ac9cd8e14d1b21731b726", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "999c10acf914323689ba0c5c3284ec74000e85a5b19ac9cd8e14d1b21731b726", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "999c10acf914323689ba0c5c3284ec74000e85a5b19ac9cd8e14d1b21731b726", kill_on_drop: false }`
[INFO] [stdout] 999c10acf914323689ba0c5c3284ec74000e85a5b19ac9cd8e14d1b21731b726
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c125bc4650bd41cdce38e01e8081bde2e2c5d830789627df91ee314897a85fac
[INFO] running `Command { std: "docker" "start" "-a" "c125bc4650bd41cdce38e01e8081bde2e2c5d830789627df91ee314897a85fac", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]    Compiling crossbeam-skiplist v0.1.1
[INFO] [stderr]     Checking twox-hash v1.6.3
[INFO] [stderr]     Checking half v2.4.1
[INFO] [stderr]     Checking regex-syntax v0.8.4
[INFO] [stderr]     Checking os_str_bytes v6.6.1
[INFO] [stderr]    Compiling syn v2.0.31
[INFO] [stderr]     Checking ciborium-io v0.2.2
[INFO] [stderr]     Checking plotters-backend v0.3.6
[INFO] [stderr]     Checking rayon-core v1.12.1
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking textwrap v0.16.1
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking plotters-svg v0.3.6
[INFO] [stderr]     Checking ciborium-ll v0.2.2
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking oorandom v11.1.4
[INFO] [stderr]     Checking anes v0.1.6
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking lz4_flex v0.11.3
[INFO] [stderr]     Checking clap v3.2.25
[INFO] [stderr]     Checking plotters v0.3.6
[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]     Checking regex v1.10.6
[INFO] [stderr]    Compiling serde_derive v1.0.193
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling thiserror-impl v1.0.48
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking thiserror v1.0.48
[INFO] [stderr]     Checking ckv v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `GCState` is never constructed
[INFO] [stdout]   --> src/compactor.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub struct GCState {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `L0Task` is never constructed
[INFO] [stdout]   --> src/compactor.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub struct L0Task {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `L0Task` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `execute` is never used
[INFO] [stdout]   --> src/compactor.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 55 | impl L0Task {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] 56 |     pub fn execute(&self, opt: Options) -> VersionEdit {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ReadableFile` is never used
[INFO] [stdout]   --> src/file/mod.rs:60:10
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub enum ReadableFile {
[INFO] [stdout]    |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `WritableFile` is never used
[INFO] [stdout]   --> src/file/mod.rs:65:10
[INFO] [stdout]    |
[INFO] [stdout] 65 | pub enum WritableFile {
[INFO] [stdout]    |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `write_wal` is never used
[INFO] [stdout]    --> src/lsm.rs:175:8
[INFO] [stdout]     |
[INFO] [stdout] 68  | impl LsmInner {
[INFO] [stdout]     | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 175 |     fn write_wal(&self, key: &[u8], value: &[u8], seq: u64) -> Result<()> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `tag` is never used
[INFO] [stdout]   --> src/mem_table.rs:87:12
[INFO] [stdout]    |
[INFO] [stdout] 63 | impl Key {
[INFO] [stdout]    | -------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 87 |     pub fn tag(key: &[u8]) -> &[u8] {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `colse` is never used
[INFO] [stdout]    --> src/mem_table.rs:180:12
[INFO] [stdout]     |
[INFO] [stdout] 115 | impl MemTable {
[INFO] [stdout]     | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 180 |     pub fn colse(&self) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `key` and `value` are never used
[INFO] [stdout]    --> src/mem_table.rs:279:12
[INFO] [stdout]     |
[INFO] [stdout] 268 | impl<'a> MemTableIterator<'a> {
[INFO] [stdout]     | ----------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 279 |     pub fn key(&self) -> &[u8] {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 283 |     pub fn value(&self) -> &[u8] {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `DecodeBlockError` is never constructed
[INFO] [stdout]   --> src/sstable/mod.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub enum TableError {
[INFO] [stdout]    |          ---------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 20 |     DecodeBlockError,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TableError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `u64_to_bytes` is never used
[INFO] [stdout]  --> src/utils/convert.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn u64_to_bytes(data: u64) -> Vec<u8> {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `with_range`, `with_internal_range`, `allow_seek`, and `number` are never used
[INFO] [stdout]   --> src/version/mod.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl FileMetaData {
[INFO] [stdout]    | ----------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 48 |     pub fn with_range(number: u64, smallest: &[u8], largest: &[u8]) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub fn with_internal_range(number: u64, smallest: InternalKey, largest: InternalKey) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 81 |     pub fn allow_seek(&self) -> u32 {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 90 |     pub fn number(&self) -> u64 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `add_vlogs` and `delete_vlogs` are never read
[INFO] [stdout]   --> src/version/version_edit.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub struct VersionEdit {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 57 |     pub add_vlogs: Vec<u64>,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 58 |     pub delete_vlogs: Vec<u64>,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `VersionEdit` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `files` and `level_files` are never used
[INFO] [stdout]    --> src/version/version_set.rs:120:12
[INFO] [stdout]     |
[INFO] [stdout] 52  | impl Version {
[INFO] [stdout]     | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 120 |     pub fn files(&self) -> &Vec<Vec<FileMetaData>> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 124 |     pub fn level_files(&self, level: usize) -> &Vec<FileMetaData> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `do_gc` is never used
[INFO] [stdout]    --> src/version/version_set.rs:772:12
[INFO] [stdout]     |
[INFO] [stdout] 338 | impl VersionSet {
[INFO] [stdout]     | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 772 |     pub fn do_gc(&self, meta: &mut FileMetaData) -> Result<Option<GCState>> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking serde_json v1.0.109
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.4.0
[INFO] [stdout] warning: struct `GCState` is never constructed
[INFO] [stdout]   --> src/compactor.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub struct GCState {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `L0Task` is never constructed
[INFO] [stdout]   --> src/compactor.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub struct L0Task {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `L0Task` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `execute` is never used
[INFO] [stdout]   --> src/compactor.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 55 | impl L0Task {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] 56 |     pub fn execute(&self, opt: Options) -> VersionEdit {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ReadableFile` is never used
[INFO] [stdout]   --> src/file/mod.rs:60:10
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub enum ReadableFile {
[INFO] [stdout]    |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `WritableFile` is never used
[INFO] [stdout]   --> src/file/mod.rs:65:10
[INFO] [stdout]    |
[INFO] [stdout] 65 | pub enum WritableFile {
[INFO] [stdout]    |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `write_wal` is never used
[INFO] [stdout]    --> src/lsm.rs:175:8
[INFO] [stdout]     |
[INFO] [stdout] 68  | impl LsmInner {
[INFO] [stdout]     | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 175 |     fn write_wal(&self, key: &[u8], value: &[u8], seq: u64) -> Result<()> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `tag` is never used
[INFO] [stdout]   --> src/mem_table.rs:87:12
[INFO] [stdout]    |
[INFO] [stdout] 63 | impl Key {
[INFO] [stdout]    | -------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 87 |     pub fn tag(key: &[u8]) -> &[u8] {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `colse` is never used
[INFO] [stdout]    --> src/mem_table.rs:180:12
[INFO] [stdout]     |
[INFO] [stdout] 115 | impl MemTable {
[INFO] [stdout]     | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 180 |     pub fn colse(&self) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `key` and `value` are never used
[INFO] [stdout]    --> src/mem_table.rs:279:12
[INFO] [stdout]     |
[INFO] [stdout] 268 | impl<'a> MemTableIterator<'a> {
[INFO] [stdout]     | ----------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 279 |     pub fn key(&self) -> &[u8] {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 283 |     pub fn value(&self) -> &[u8] {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `DecodeBlockError` is never constructed
[INFO] [stdout]   --> src/sstable/mod.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub enum TableError {
[INFO] [stdout]    |          ---------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 20 |     DecodeBlockError,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TableError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `u64_to_bytes` is never used
[INFO] [stdout]  --> src/utils/convert.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn u64_to_bytes(data: u64) -> Vec<u8> {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `with_range`, `with_internal_range`, `allow_seek`, and `number` are never used
[INFO] [stdout]   --> src/version/mod.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl FileMetaData {
[INFO] [stdout]    | ----------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 48 |     pub fn with_range(number: u64, smallest: &[u8], largest: &[u8]) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub fn with_internal_range(number: u64, smallest: InternalKey, largest: InternalKey) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 81 |     pub fn allow_seek(&self) -> u32 {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 90 |     pub fn number(&self) -> u64 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `add_vlogs` and `delete_vlogs` are never read
[INFO] [stdout]   --> src/version/version_edit.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub struct VersionEdit {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 57 |     pub add_vlogs: Vec<u64>,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 58 |     pub delete_vlogs: Vec<u64>,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `VersionEdit` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `files` and `level_files` are never used
[INFO] [stdout]    --> src/version/version_set.rs:120:12
[INFO] [stdout]     |
[INFO] [stdout] 52  | impl Version {
[INFO] [stdout]     | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 120 |     pub fn files(&self) -> &Vec<Vec<FileMetaData>> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 124 |     pub fn level_files(&self, level: usize) -> &Vec<FileMetaData> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `do_gc` is never used
[INFO] [stdout]    --> src/version/version_set.rs:772:12
[INFO] [stdout]     |
[INFO] [stdout] 338 | impl VersionSet {
[INFO] [stdout]     | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 772 |     pub fn do_gc(&self, meta: &mut FileMetaData) -> Result<Option<GCState>> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.59s
[INFO] running `Command { std: "docker" "inspect" "c125bc4650bd41cdce38e01e8081bde2e2c5d830789627df91ee314897a85fac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c125bc4650bd41cdce38e01e8081bde2e2c5d830789627df91ee314897a85fac", kill_on_drop: false }`
[INFO] [stdout] c125bc4650bd41cdce38e01e8081bde2e2c5d830789627df91ee314897a85fac