[INFO] cloning repository https://github.com/frontseat-astronaut/ddia-in-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/frontseat-astronaut/ddia-in-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrontseat-astronaut%2Fddia-in-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrontseat-astronaut%2Fddia-in-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5809df9ee95aa2a744f4f5a0ec5d6b4724d13d57
[INFO] checking frontseat-astronaut/ddia-in-rust against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrontseat-astronaut%2Fddia-in-rust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/frontseat-astronaut/ddia-in-rust on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/frontseat-astronaut/ddia-in-rust
[INFO] finished tweaking git repo https://github.com/frontseat-astronaut/ddia-in-rust
[INFO] tweaked toml for git repo https://github.com/frontseat-astronaut/ddia-in-rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/frontseat-astronaut/ddia-in-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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ed306d98e3b7aecb43f53f28a27070181f21608b08f6594a414a4ebca9fbbf8f
[INFO] running `Command { std: "docker" "start" "-a" "ed306d98e3b7aecb43f53f28a27070181f21608b08f6594a414a4ebca9fbbf8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed306d98e3b7aecb43f53f28a27070181f21608b08f6594a414a4ebca9fbbf8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed306d98e3b7aecb43f53f28a27070181f21608b08f6594a414a4ebca9fbbf8f", kill_on_drop: false }`
[INFO] [stdout] ed306d98e3b7aecb43f53f28a27070181f21608b08f6594a414a4ebca9fbbf8f
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 67d72d9a222f5c4416f206c1279a6f2af1cde9793e27eb66f43747ac8445c0ad
[INFO] running `Command { std: "docker" "start" "-a" "67d72d9a222f5c4416f206c1279a6f2af1cde9793e27eb66f43747ac8445c0ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking getrandom v0.2.14
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking databases-in-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::VecDeque`
[INFO] [stdout]  --> src/sstable/segment_file.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::VecDeque;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::VecDeque`
[INFO] [stdout]  --> src/sstable/segment_file.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::VecDeque;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/test/utils.rs:4:30
[INFO] [stdout]   |
[INFO] [stdout] 4 |     io::{BufRead, BufReader, Read, Write},
[INFO] [stdout]   |                              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/test/utils.rs:4:30
[INFO] [stdout]   |
[INFO] [stdout] 4 |     io::{BufRead, BufReader, Read, Write},
[INFO] [stdout]   |                              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `i` is assigned to, but never used
[INFO] [stdout]   --> src/test/correctness_test.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |         let mut i = 0;
[INFO] [stdout]    |                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_i` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `i` is assigned to, but never used
[INFO] [stdout]   --> src/test/correctness_test.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |         let mut i = 0;
[INFO] [stdout]    |                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_i` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set_status` is never used
[INFO] [stdout]  --> src/kvdb/mod.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait KVDb {
[INFO] [stdout]   |           ---- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 8 |     fn set_status(&mut self, key: &str, status: &KeyStatus<String>) -> DbResult<()> {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_file` is never used
[INFO] [stdout]   --> src/test/correctness_test.rs:75:12
[INFO] [stdout]    |
[INFO] [stdout] 56 | impl CorrectnessTest {
[INFO] [stdout]    | -------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 75 |     pub fn from_file(file_path: &str) -> CorrectnessTest {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set_status` is never used
[INFO] [stdout]  --> src/kvdb/mod.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait KVDb {
[INFO] [stdout]   |           ---- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 8 |     fn set_status(&mut self, key: &str, status: &KeyStatus<String>) -> DbResult<()> {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/test/latency_test.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 54 | impl LatencyTest {
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] 55 |     pub fn new(
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_file` is never used
[INFO] [stdout]   --> src/test/correctness_test.rs:75:12
[INFO] [stdout]    |
[INFO] [stdout] 56 | impl CorrectnessTest {
[INFO] [stdout]    | -------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 75 |     pub fn from_file(file_path: &str) -> CorrectnessTest {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/test/latency_test.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 54 | impl LatencyTest {
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] 55 |     pub fn new(
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `Command { std: "docker" "inspect" "67d72d9a222f5c4416f206c1279a6f2af1cde9793e27eb66f43747ac8445c0ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67d72d9a222f5c4416f206c1279a6f2af1cde9793e27eb66f43747ac8445c0ad", kill_on_drop: false }`
[INFO] [stdout] 67d72d9a222f5c4416f206c1279a6f2af1cde9793e27eb66f43747ac8445c0ad