[INFO] cloning repository https://github.com/chouxcreams/mini-rdbms
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chouxcreams/mini-rdbms" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchouxcreams%2Fmini-rdbms", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchouxcreams%2Fmini-rdbms'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a036eecce9ce7597a9eac8e8c0decceaaf9c862c
[INFO] checking chouxcreams/mini-rdbms against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchouxcreams%2Fmini-rdbms" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chouxcreams/mini-rdbms on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/chouxcreams/mini-rdbms
[INFO] finished tweaking git repo https://github.com/chouxcreams/mini-rdbms
[INFO] tweaked toml for git repo https://github.com/chouxcreams/mini-rdbms written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/chouxcreams/mini-rdbms already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6c539aef758b0bfa80267a343dfc2403ffe9b6dedeaae129e169dbe49e629940
[INFO] running `Command { std: "docker" "start" "-a" "6c539aef758b0bfa80267a343dfc2403ffe9b6dedeaae129e169dbe49e629940", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c539aef758b0bfa80267a343dfc2403ffe9b6dedeaae129e169dbe49e629940", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c539aef758b0bfa80267a343dfc2403ffe9b6dedeaae129e169dbe49e629940", kill_on_drop: false }`
[INFO] [stdout] 6c539aef758b0bfa80267a343dfc2403ffe9b6dedeaae129e169dbe49e629940
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ae2518e345ff49a8d09fa1432cc392e5451394154f44df599c6516acae96ca6
[INFO] running `Command { std: "docker" "start" "-a" "3ae2518e345ff49a8d09fa1432cc392e5451394154f44df599c6516acae96ca6", kill_on_drop: false }`
[INFO] [stderr]     Checking mini-rdbms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant is never used: `PAGE_SIZE`
[INFO] [stdout]  --> src/disk_manager.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | const PAGE_SIZE: usize = 4096;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PAGE_SIZE`
[INFO] [stdout]  --> src/disk_manager.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | const PAGE_SIZE: usize = 4096;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `PageId`
[INFO] [stdout]  --> src/disk_manager.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct PageId (pub u64);
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_64`
[INFO] [stdout]   --> src/disk_manager.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn to_64(&self) -> u64 {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `DiskManager`
[INFO] [stdout]   --> src/disk_manager.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct DiskManager {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/disk_manager.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn new(heap_file: File) -> io::Result<Self> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `open`
[INFO] [stdout]   --> src/disk_manager.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn open(heap_file_path: impl AsRef<Path>) -> io::Result<Self> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `allocate_page`
[INFO] [stdout]   --> src/disk_manager.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn allocate_page(&mut self) -> PageId {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `PageId`
[INFO] [stdout]  --> src/disk_manager.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct PageId (pub u64);
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_page_data`
[INFO] [stdout]   --> src/disk_manager.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn write_page_data(&mut self, page_id: PageId, data: &[u8]) -> io::Result<()> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_64`
[INFO] [stdout]   --> src/disk_manager.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn to_64(&self) -> u64 {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_page_data`
[INFO] [stdout]   --> src/disk_manager.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn read_page_data(&mut self, page_id: PageId, data: &mut [u8]) -> io::Result<()> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `DiskManager`
[INFO] [stdout]   --> src/disk_manager.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct DiskManager {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/disk_manager.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn new(heap_file: File) -> io::Result<Self> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `open`
[INFO] [stdout]   --> src/disk_manager.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn open(heap_file_path: impl AsRef<Path>) -> io::Result<Self> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `allocate_page`
[INFO] [stdout]   --> src/disk_manager.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn allocate_page(&mut self) -> PageId {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_page_data`
[INFO] [stdout]   --> src/disk_manager.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn write_page_data(&mut self, page_id: PageId, data: &[u8]) -> io::Result<()> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_page_data`
[INFO] [stdout]   --> src/disk_manager.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn read_page_data(&mut self, page_id: PageId, data: &mut [u8]) -> io::Result<()> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] running `Command { std: "docker" "inspect" "3ae2518e345ff49a8d09fa1432cc392e5451394154f44df599c6516acae96ca6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ae2518e345ff49a8d09fa1432cc392e5451394154f44df599c6516acae96ca6", kill_on_drop: false }`
[INFO] [stdout] 3ae2518e345ff49a8d09fa1432cc392e5451394154f44df599c6516acae96ca6