[INFO] cloning repository https://github.com/anhlt/rust_toydb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/anhlt/rust_toydb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanhlt%2Frust_toydb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanhlt%2Frust_toydb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1c35884ccb48f61f1243e3b28f82aaaa27762664
[INFO] checking anhlt/rust_toydb against try#c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f for 2025-12-16-next-solver-global
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanhlt%2Frust_toydb" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/anhlt/rust_toydb
[INFO] finished tweaking git repo https://github.com/anhlt/rust_toydb
[INFO] tweaked toml for git repo https://github.com/anhlt/rust_toydb written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/anhlt/rust_toydb on toolchain c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/anhlt/rust_toydb 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" "+c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b270cb64750a09f69dd09d70f14a6cfc26426aa3a6e3b87651d9a5a96fa3838d
[INFO] running `Command { std: "docker" "start" "-a" "b270cb64750a09f69dd09d70f14a6cfc26426aa3a6e3b87651d9a5a96fa3838d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b270cb64750a09f69dd09d70f14a6cfc26426aa3a6e3b87651d9a5a96fa3838d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b270cb64750a09f69dd09d70f14a6cfc26426aa3a6e3b87651d9a5a96fa3838d", kill_on_drop: false }`
[INFO] [stdout] b270cb64750a09f69dd09d70f14a6cfc26426aa3a6e3b87651d9a5a96fa3838d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 240b1849f7ec5472c6cf39cc3734be5c68d4b4dbfd5002c06810d4ff37f8a723
[INFO] running `Command { std: "docker" "start" "-a" "240b1849f7ec5472c6cf39cc3734be5c68d4b4dbfd5002c06810d4ff37f8a723", kill_on_drop: false }`
[INFO] [stderr]     Checking toydb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Header` is never constructed
[INFO] [stdout]   --> src/file_system/mod.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | struct Header {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Slot` is never constructed
[INFO] [stdout]   --> src/file_system/mod.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 52 | struct Slot {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pos_and_data` is never used
[INFO] [stdout]   --> src/file_system/mem.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl InmemFile {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] 12 |     fn pos_and_data(&self) -> (u64, &[u8]) {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Header` is never constructed
[INFO] [stdout]   --> src/file_system/mod.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | struct Header {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Slot` is never constructed
[INFO] [stdout]   --> src/file_system/mod.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 52 | struct Slot {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> tests/intergration_test.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `File`
[INFO] [stdout]  --> tests/intergration_test.rs:5:26
[INFO] [stdout]   |
[INFO] [stdout] 5 | use toydb::file_system::{File, SlottedPage};
[INFO] [stdout]   |                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> tests/intergration_test.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     page.add(&PlainStringRecord::new("Helloword"), 12);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let _ = page.add(&PlainStringRecord::new("Helloword"), 12);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Header` is never constructed
[INFO] [stdout]   --> src/file_system/mod.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | struct Header {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Slot` is never constructed
[INFO] [stdout]   --> src/file_system/mod.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 52 | struct Slot {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pos_and_data` is never used
[INFO] [stdout]   --> src/file_system/mem.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl InmemFile {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] 12 |     fn pos_and_data(&self) -> (u64, &[u8]) {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Header` is never constructed
[INFO] [stdout]   --> src/file_system/mod.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | struct Header {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Slot` is never constructed
[INFO] [stdout]   --> src/file_system/mod.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 52 | struct Slot {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "240b1849f7ec5472c6cf39cc3734be5c68d4b4dbfd5002c06810d4ff37f8a723", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "240b1849f7ec5472c6cf39cc3734be5c68d4b4dbfd5002c06810d4ff37f8a723", kill_on_drop: false }`
[INFO] [stdout] 240b1849f7ec5472c6cf39cc3734be5c68d4b4dbfd5002c06810d4ff37f8a723