[INFO] cloning repository https://github.com/daisuzz/toy-rdbms
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/daisuzz/toy-rdbms" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaisuzz%2Ftoy-rdbms", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaisuzz%2Ftoy-rdbms'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b1020567f7a44302aabb193cb17219ac1730709c
[INFO] checking daisuzz/toy-rdbms against master#c5fbcd35a8217a17f6b63a22217ace06cf8f5f02 for pr-86194
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaisuzz%2Ftoy-rdbms" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/daisuzz/toy-rdbms on toolchain c5fbcd35a8217a17f6b63a22217ace06cf8f5f02
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/daisuzz/toy-rdbms
[INFO] finished tweaking git repo https://github.com/daisuzz/toy-rdbms
[INFO] tweaked toml for git repo https://github.com/daisuzz/toy-rdbms written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/daisuzz/toy-rdbms already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6b1aff464822284638f9e7e56ec732ad23b17b35675011d96a76fa4d5f558641
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6b1aff464822284638f9e7e56ec732ad23b17b35675011d96a76fa4d5f558641", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b1aff464822284638f9e7e56ec732ad23b17b35675011d96a76fa4d5f558641", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b1aff464822284638f9e7e56ec732ad23b17b35675011d96a76fa4d5f558641", kill_on_drop: false }`
[INFO] [stdout] 6b1aff464822284638f9e7e56ec732ad23b17b35675011d96a76fa4d5f558641
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fe010d9336012cc6c02449acb7b7d03510fc88020d90502b7216d5c1bccb8e50
[INFO] running `Command { std: "docker" "start" "-a" "fe010d9336012cc6c02449acb7b7d03510fc88020d90502b7216d5c1bccb8e50", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.25
[INFO] [stderr]     Checking thiserror v1.0.25
[INFO] [stderr]     Checking toy-rdbms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `usage_count`
[INFO] [stdout]   --> src/buffer_pool_manager.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     usage_count: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `next_victim_id`
[INFO] [stdout]   --> src/buffer_pool_manager.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     next_victim_id: BufferId,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `size`
[INFO] [stdout]   --> src/buffer_pool_manager.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn size(&self) -> usize {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `evict`
[INFO] [stdout]   --> src/buffer_pool_manager.rs:74:8
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn evict(&mut self) -> Option<BufferId> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `increment_id`
[INFO] [stdout]    --> src/buffer_pool_manager.rs:108:8
[INFO] [stdout]     |
[INFO] [stdout] 108 |     fn increment_id(&self, buffer_id: BufferId) -> BufferId {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `fetch_page`
[INFO] [stdout]    --> src/buffer_pool_manager.rs:137:8
[INFO] [stdout]     |
[INFO] [stdout] 137 |     fn fetch_page(&mut self, page_id: PageId) -> Result<Rc<Buffer>, Error> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `create_page`
[INFO] [stdout]    --> src/buffer_pool_manager.rs:175:8
[INFO] [stdout]     |
[INFO] [stdout] 175 |     fn create_page(&mut self) -> Result<Rc<Buffer>, Error> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.11s
[INFO] running `Command { std: "docker" "inspect" "fe010d9336012cc6c02449acb7b7d03510fc88020d90502b7216d5c1bccb8e50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe010d9336012cc6c02449acb7b7d03510fc88020d90502b7216d5c1bccb8e50", kill_on_drop: false }`
[INFO] [stdout] fe010d9336012cc6c02449acb7b7d03510fc88020d90502b7216d5c1bccb8e50