[INFO] cloning repository https://github.com/notzree/mini-lsm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/notzree/mini-lsm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnotzree%2Fmini-lsm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnotzree%2Fmini-lsm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9820afbad9814d696f7a0e75d27c9fd901e15fab
[INFO] checking notzree/mini-lsm against 47574b82ff3fe9b0a45ff65a4fe189e295ecb748 for pr-160780
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnotzree%2Fmini-lsm" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-4-tc2/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-4-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/notzree/mini-lsm
[INFO] finished tweaking git repo https://github.com/notzree/mini-lsm
[INFO] tweaked toml for git repo https://github.com/notzree/mini-lsm written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/notzree/mini-lsm on toolchain 47574b82ff3fe9b0a45ff65a4fe189e295ecb748
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+47574b82ff3fe9b0a45ff65a4fe189e295ecb748" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/notzree/mini-lsm 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" "+47574b82ff3fe9b0a45ff65a4fe189e295ecb748" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 0ec41259dbb2ca92902c8c02fd09fb45f9bde07252736fe040cf99c38ced6fae
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[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "0ec41259dbb2ca92902c8c02fd09fb45f9bde07252736fe040cf99c38ced6fae" "/opt/rustwide/cargo-home/bin/cargo" "+47574b82ff3fe9b0a45ff65a4fe189e295ecb748" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ec41259dbb2ca92902c8c02fd09fb45f9bde07252736fe040cf99c38ced6fae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "0ec41259dbb2ca92902c8c02fd09fb45f9bde07252736fe040cf99c38ced6fae" "/opt/rustwide/cargo-home/bin/cargo" "+47574b82ff3fe9b0a45ff65a4fe189e295ecb748" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stderr]     Checking mini-lsm v0.2.0 (/opt/rustwide/workdir/mini-lsm)
[INFO] [stderr]     Checking mini-lsm-starter v0.2.0 (/opt/rustwide/workdir/mini-lsm-starter)
[INFO] [stderr]     Checking mini-lsm-mvcc v0.2.0 (/opt/rustwide/workdir/mini-lsm-mvcc)
[INFO] [stderr]     Checking mini-lsm-xtask v0.2.0 (/opt/rustwide/workdir/xtask)
[INFO] [stdout] warning: unused variable: `nbits`
[INFO] [stdout]   --> mini-lsm-starter/src/table/bloom.rs:91:13
[INFO] [stdout]    |
[INFO] [stdout] 91 |         let nbits = nbytes * 8;
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_nbits`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nbits`
[INFO] [stdout]    --> mini-lsm-starter/src/table/bloom.rs:109:17
[INFO] [stdout]     |
[INFO] [stdout] 109 |             let nbits = self.filter.bit_len();
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_nbits`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `delta`
[INFO] [stdout]    --> mini-lsm-starter/src/table/bloom.rs:110:17
[INFO] [stdout]     |
[INFO] [stdout] 110 |             let delta = h.rotate_left(15);
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_delta`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `first_key` is never read
[INFO] [stdout]   --> mini-lsm-starter/src/block/iterator.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct BlockIterator {
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 32 |     first_key: KeyVec,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `compaction_controller`, `manifest`, and `mvcc` are never read
[INFO] [stdout]    --> mini-lsm-starter/src/lsm_storage.rs:146:16
[INFO] [stdout]     |
[INFO] [stdout] 139 | pub(crate) struct LsmStorageInner {
[INFO] [stdout]     |                   --------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 146 |     pub(crate) compaction_controller: CompactionController,
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 147 |     pub(crate) manifest: Option<Manifest>,
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] 148 |     pub(crate) mvcc: Option<LsmMvccInner>,
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `compaction_thread` is never read
[INFO] [stdout]    --> mini-lsm-starter/src/lsm_storage.rs:166:5
[INFO] [stdout]     |
[INFO] [stdout] 153 | pub struct MiniLsm {
[INFO] [stdout]     |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 166 |     compaction_thread: Mutex<Option<std::thread::JoinHandle<()>>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `mvcc` is never used
[INFO] [stdout]    --> mini-lsm-starter/src/lsm_storage.rs:266:19
[INFO] [stdout]     |
[INFO] [stdout] 260 | impl LsmStorageInner {
[INFO] [stdout]     | -------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 266 |     pub(crate) fn mvcc(&self) -> &LsmMvccInner {
[INFO] [stdout]     |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `bloom` is never read
[INFO] [stdout]    --> mini-lsm-starter/src/table.rs:150:16
[INFO] [stdout]     |
[INFO] [stdout] 137 | pub struct SsTable {
[INFO] [stdout]     |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 150 |     pub(crate) bloom: Option<Bloom>,
[INFO] [stdout]     |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `filter` and `k` are never read
[INFO] [stdout]   --> mini-lsm-starter/src/table/bloom.rs:23:16
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Bloom {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 22 |     /// data of filter in bits
[INFO] [stdout] 23 |     pub(crate) filter: Bytes,
[INFO] [stdout]    |                ^^^^^^
[INFO] [stdout] 24 |     /// number of hash functions
[INFO] [stdout] 25 |     pub(crate) k: u8,
[INFO] [stdout]    |                ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `BitSlice` is never used
[INFO] [stdout]   --> mini-lsm-starter/src/table/bloom.rs:28:11
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub trait BitSlice {
[INFO] [stdout]    |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `BitSliceMut` is never used
[INFO] [stdout]   --> mini-lsm-starter/src/table/bloom.rs:33:11
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub trait BitSliceMut {
[INFO] [stdout]    |           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `decode`, `encode`, `bloom_bits_per_key`, `build_from_key_hashes`, and `may_contain` are never used
[INFO] [stdout]    --> mini-lsm-starter/src/table/bloom.rs:63:12
[INFO] [stdout]     |
[INFO] [stdout]  61 | impl Bloom {
[INFO] [stdout]     | ---------- associated items in this implementation
[INFO] [stdout]  62 |     /// Decode a bloom filter
[INFO] [stdout]  63 |     pub fn decode(buf: &[u8]) -> Result<Self> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  73 |     pub fn encode(&self, buf: &mut Vec<u8>) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  79 |     pub fn bloom_bits_per_key(entries: usize, false_positive_rate: f64) -> usize {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  86 |     pub fn build_from_key_hashes(keys: &[u32], bits_per_key: usize) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 104 |     pub fn may_contain(&self, h: u32) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nbits`
[INFO] [stdout]   --> mini-lsm-starter/src/table/bloom.rs:91:13
[INFO] [stdout]    |
[INFO] [stdout] 91 |         let nbits = nbytes * 8;
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_nbits`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nbits`
[INFO] [stdout]    --> mini-lsm-starter/src/table/bloom.rs:109:17
[INFO] [stdout]     |
[INFO] [stdout] 109 |             let nbits = self.filter.bit_len();
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_nbits`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `delta`
[INFO] [stdout]    --> mini-lsm-starter/src/table/bloom.rs:110:17
[INFO] [stdout]     |
[INFO] [stdout] 110 |             let delta = h.rotate_left(15);
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_delta`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `first_key` is never read
[INFO] [stdout]   --> mini-lsm-starter/src/block/iterator.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct BlockIterator {
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 32 |     first_key: KeyVec,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `compaction_controller`, `manifest`, and `mvcc` are never read
[INFO] [stdout]    --> mini-lsm-starter/src/lsm_storage.rs:146:16
[INFO] [stdout]     |
[INFO] [stdout] 139 | pub(crate) struct LsmStorageInner {
[INFO] [stdout]     |                   --------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 146 |     pub(crate) compaction_controller: CompactionController,
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 147 |     pub(crate) manifest: Option<Manifest>,
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] 148 |     pub(crate) mvcc: Option<LsmMvccInner>,
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `compaction_thread` is never read
[INFO] [stdout]    --> mini-lsm-starter/src/lsm_storage.rs:166:5
[INFO] [stdout]     |
[INFO] [stdout] 153 | pub struct MiniLsm {
[INFO] [stdout]     |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 166 |     compaction_thread: Mutex<Option<std::thread::JoinHandle<()>>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `mvcc` is never used
[INFO] [stdout]    --> mini-lsm-starter/src/lsm_storage.rs:266:19
[INFO] [stdout]     |
[INFO] [stdout] 260 | impl LsmStorageInner {
[INFO] [stdout]     | -------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 266 |     pub(crate) fn mvcc(&self) -> &LsmMvccInner {
[INFO] [stdout]     |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_bit` is never used
[INFO] [stdout]   --> mini-lsm-starter/src/table/bloom.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub trait BitSlice {
[INFO] [stdout]    |           -------- method in this trait
[INFO] [stdout] 29 |     fn get_bit(&self, idx: usize) -> bool;
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `BitSliceMut` is never used
[INFO] [stdout]   --> mini-lsm-starter/src/table/bloom.rs:33:11
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub trait BitSliceMut {
[INFO] [stdout]    |           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `decode` and `encode` are never used
[INFO] [stdout]   --> mini-lsm-starter/src/table/bloom.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 61 | impl Bloom {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 62 |     /// Decode a bloom filter
[INFO] [stdout] 63 |     pub fn decode(buf: &[u8]) -> Result<Self> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 73 |     pub fn encode(&self, buf: &mut Vec<u8>) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 26.59s
[INFO] running `Command { std: "docker" "inspect" "0ec41259dbb2ca92902c8c02fd09fb45f9bde07252736fe040cf99c38ced6fae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ec41259dbb2ca92902c8c02fd09fb45f9bde07252736fe040cf99c38ced6fae", kill_on_drop: false }`
[INFO] [stdout] 0ec41259dbb2ca92902c8c02fd09fb45f9bde07252736fe040cf99c38ced6fae
