[INFO] cloning repository https://github.com/CircuitCoder/MeowBox
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CircuitCoder/MeowBox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCircuitCoder%2FMeowBox"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCircuitCoder%2FMeowBox'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 01c59ac7d193595e0796eb87545f4567fa5d9c11
[INFO] checking CircuitCoder/MeowBox against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCircuitCoder%2FMeowBox" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CircuitCoder/MeowBox on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/CircuitCoder/MeowBox
[INFO] finished tweaking git repo https://github.com/CircuitCoder/MeowBox
[INFO] tweaked toml for git repo https://github.com/CircuitCoder/MeowBox written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/CircuitCoder/MeowBox already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6fcd8fa472588bb68988ac26c331fd5c33d606e7284da5cbc898aa2add2ba9f0
[INFO] running `"docker" "start" "-a" "6fcd8fa472588bb68988ac26c331fd5c33d606e7284da5cbc898aa2add2ba9f0"`
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking meow-box v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::sync::*`
[INFO] [stderr]  --> src/record.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::sync::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::sync::*`
[INFO] [stderr]  --> src/record.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::sync::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get`
[INFO] [stderr]   --> src/storage.rs:51:3
[INFO] [stderr]    |
[INFO] [stderr] 51 |   pub fn get(&self, id: u64) -> Option<StorageFile> {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `FieldType`
[INFO] [stderr]  --> src/record.rs:6:6
[INFO] [stderr]   |
[INFO] [stderr] 6 | enum FieldType {
[INFO] [stderr]   |      ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `len`
[INFO] [stderr]   --> src/record.rs:12:3
[INFO] [stderr]    |
[INFO] [stderr] 12 |   fn len(&self) -> usize {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Schema`
[INFO] [stderr]   --> src/record.rs:20:8
[INFO] [stderr]    |
[INFO] [stderr] 20 | struct Schema {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `len`
[INFO] [stderr]   --> src/record.rs:25:3
[INFO] [stderr]    |
[INFO] [stderr] 25 |   fn len(&self) -> usize {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Record`
[INFO] [stderr]   --> src/record.rs:30:8
[INFO] [stderr]    |
[INFO] [stderr] 30 | struct Record<'a> {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Cursor`
[INFO] [stderr]   --> src/record.rs:35:8
[INFO] [stderr]    |
[INFO] [stderr] 35 | struct Cursor<'a> {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `next`
[INFO] [stderr]   --> src/record.rs:48:3
[INFO] [stderr]    |
[INFO] [stderr] 48 |   fn next<'b>(&'b mut self) -> Option<Record<'b>> {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Manager`
[INFO] [stderr]   --> src/record.rs:77:8
[INFO] [stderr]    |
[INFO] [stderr] 77 | struct Manager {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/record.rs:83:3
[INFO] [stderr]    |
[INFO] [stderr] 83 |   pub fn new(storage: StorageFile, occupied: Vec<usize>) -> Manager {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_page`
[INFO] [stderr]   --> src/record.rs:87:3
[INFO] [stderr]    |
[INFO] [stderr] 87 |   pub fn read_page(&mut self, at: usize, buf: &mut Page) -> Option<usize> {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `cursor`
[INFO] [stderr]   --> src/record.rs:95:3
[INFO] [stderr]    |
[INFO] [stderr] 95 |   fn cursor<'a>(&'a mut self, schema: Schema) -> Cursor<'a> {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/record.rs:90:7
[INFO] [stderr]    |
[INFO] [stderr] 90 |       self.storage.read_page(at, buf);
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 14 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get`
[INFO] [stderr]   --> src/storage.rs:51:3
[INFO] [stderr]    |
[INFO] [stderr] 51 |   pub fn get(&self, id: u64) -> Option<StorageFile> {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `FieldType`
[INFO] [stderr]  --> src/record.rs:6:6
[INFO] [stderr]   |
[INFO] [stderr] 6 | enum FieldType {
[INFO] [stderr]   |      ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `len`
[INFO] [stderr]   --> src/record.rs:12:3
[INFO] [stderr]    |
[INFO] [stderr] 12 |   fn len(&self) -> usize {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Schema`
[INFO] [stderr]   --> src/record.rs:20:8
[INFO] [stderr]    |
[INFO] [stderr] 20 | struct Schema {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `len`
[INFO] [stderr]   --> src/record.rs:25:3
[INFO] [stderr]    |
[INFO] [stderr] 25 |   fn len(&self) -> usize {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Record`
[INFO] [stderr]   --> src/record.rs:30:8
[INFO] [stderr]    |
[INFO] [stderr] 30 | struct Record<'a> {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Cursor`
[INFO] [stderr]   --> src/record.rs:35:8
[INFO] [stderr]    |
[INFO] [stderr] 35 | struct Cursor<'a> {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `next`
[INFO] [stderr]   --> src/record.rs:48:3
[INFO] [stderr]    |
[INFO] [stderr] 48 |   fn next<'b>(&'b mut self) -> Option<Record<'b>> {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Manager`
[INFO] [stderr]   --> src/record.rs:77:8
[INFO] [stderr]    |
[INFO] [stderr] 77 | struct Manager {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/record.rs:83:3
[INFO] [stderr]    |
[INFO] [stderr] 83 |   pub fn new(storage: StorageFile, occupied: Vec<usize>) -> Manager {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_page`
[INFO] [stderr]   --> src/record.rs:87:3
[INFO] [stderr]    |
[INFO] [stderr] 87 |   pub fn read_page(&mut self, at: usize, buf: &mut Page) -> Option<usize> {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `cursor`
[INFO] [stderr]   --> src/record.rs:95:3
[INFO] [stderr]    |
[INFO] [stderr] 95 |   fn cursor<'a>(&'a mut self, schema: Schema) -> Cursor<'a> {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/record.rs:90:7
[INFO] [stderr]    |
[INFO] [stderr] 90 |       self.storage.read_page(at, buf);
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 14 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.32s
[INFO] running `"docker" "inspect" "6fcd8fa472588bb68988ac26c331fd5c33d606e7284da5cbc898aa2add2ba9f0"`
[INFO] running `"docker" "rm" "-f" "6fcd8fa472588bb68988ac26c331fd5c33d606e7284da5cbc898aa2add2ba9f0"`
[INFO] [stdout] 6fcd8fa472588bb68988ac26c331fd5c33d606e7284da5cbc898aa2add2ba9f0