[INFO] cloning repository https://github.com/ShaneEverittM/rust_db [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ShaneEverittM/rust_db" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShaneEverittM%2Frust_db", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShaneEverittM%2Frust_db'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ec9a86bb5a81c3e56e947872d6d2bf26ca853b02 [INFO] checking ShaneEverittM/rust_db against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShaneEverittM%2Frust_db" "/workspace/builds/worker-10/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ShaneEverittM/rust_db on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/ShaneEverittM/rust_db [INFO] finished tweaking git repo https://github.com/ShaneEverittM/rust_db [INFO] tweaked toml for git repo https://github.com/ShaneEverittM/rust_db written to /workspace/builds/worker-10/source/Cargo.toml [INFO] crate git repo https://github.com/ShaneEverittM/rust_db already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", 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] 2c08143a36ccb58e39ff47e91c423fd3271843b4b496a1cf9c7310ce65011b62 [INFO] running `Command { std: "docker" "start" "-a" "2c08143a36ccb58e39ff47e91c423fd3271843b4b496a1cf9c7310ce65011b62", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2c08143a36ccb58e39ff47e91c423fd3271843b4b496a1cf9c7310ce65011b62", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2c08143a36ccb58e39ff47e91c423fd3271843b4b496a1cf9c7310ce65011b62", kill_on_drop: false }` [INFO] [stdout] 2c08143a36ccb58e39ff47e91c423fd3271843b4b496a1cf9c7310ce65011b62 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 11c7b3698e0688c602477ce0f4d5af985cc44ef4d7b1bc60dd91d2d6dd6bc23b [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" "11c7b3698e0688c602477ce0f4d5af985cc44ef4d7b1bc60dd91d2d6dd6bc23b", kill_on_drop: false }` [INFO] [stderr] Checking bytes v0.6.0 [INFO] [stderr] Checking rust_db v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: constant is never used: `PAGE_SIZE` [INFO] [stdout] --> src/main.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | 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/file_manager/file_handle.rs:6:1 [INFO] [stdout] | [INFO] [stdout] 6 | const PAGE_SIZE: usize = 4096; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `FileHandle` [INFO] [stdout] --> src/file_manager/file_handle.rs:8:12 [INFO] [stdout] | [INFO] [stdout] 8 | pub struct FileHandle { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/file_manager/file_handle.rs:17:12 [INFO] [stdout] | [INFO] [stdout] 17 | pub fn new(mut file: File) -> std::result::Result { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `write_counters` [INFO] [stdout] --> src/file_manager/file_handle.rs:56:8 [INFO] [stdout] | [INFO] [stdout] 56 | fn write_counters(&mut self) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `read_page` [INFO] [stdout] --> src/file_manager/file_handle.rs:71:12 [INFO] [stdout] | [INFO] [stdout] 71 | pub fn read_page(&mut self, page_num: usize, data: &mut BytesMut) -> Result { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `read_from` [INFO] [stdout] --> src/file_manager/file_handle.rs:83:8 [INFO] [stdout] | [INFO] [stdout] 83 | fn read_from(&mut self, pos: u64, data: &mut BytesMut) -> Result { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `write_page` [INFO] [stdout] --> src/file_manager/file_handle.rs:91:12 [INFO] [stdout] | [INFO] [stdout] 91 | pub fn write_page(&mut self, page_num: usize, data: &BytesMut) -> Result { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `write_to` [INFO] [stdout] --> src/file_manager/file_handle.rs:103:8 [INFO] [stdout] | [INFO] [stdout] 103 | fn write_to(&mut self, pos: u64, data: &BytesMut) -> Result { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `append_page` [INFO] [stdout] --> src/file_manager/file_handle.rs:108:12 [INFO] [stdout] | [INFO] [stdout] 108 | pub fn append_page(&mut self, data: &BytesMut) -> Result { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `get_num_pages` [INFO] [stdout] --> src/file_manager/file_handle.rs:115:12 [INFO] [stdout] | [INFO] [stdout] 115 | pub fn get_num_pages(&self) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/file_manager/file_handle.rs:135:13 [INFO] [stdout] | [INFO] [stdout] 135 | let mut file_handle_res = FileHandle::new(file); [INFO] [stdout] | ----^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/file_manager/file_handle.rs:168:13 [INFO] [stdout] | [INFO] [stdout] 168 | let mut file_handle_res = FileHandle::new(file); [INFO] [stdout] | ----^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant is never used: `PAGE_SIZE` [INFO] [stdout] --> src/main.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | 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: field is never read: `read_count` [INFO] [stdout] --> src/file_manager/file_handle.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | read_count: usize, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `write_counters` [INFO] [stdout] --> src/file_manager/file_handle.rs:56:8 [INFO] [stdout] | [INFO] [stdout] 56 | fn write_counters(&mut self) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `get_num_pages` [INFO] [stdout] --> src/file_manager/file_handle.rs:115:12 [INFO] [stdout] | [INFO] [stdout] 115 | pub fn get_num_pages(&self) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/file_manager/file_handle.rs:154:9 [INFO] [stdout] | [INFO] [stdout] 154 | std::fs::remove_file(file_name); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/file_manager/file_handle.rs:209:9 [INFO] [stdout] | [INFO] [stdout] 209 | std::fs::remove_file(file_name); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.50s [INFO] running `Command { std: "docker" "inspect" "11c7b3698e0688c602477ce0f4d5af985cc44ef4d7b1bc60dd91d2d6dd6bc23b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "11c7b3698e0688c602477ce0f4d5af985cc44ef4d7b1bc60dd91d2d6dd6bc23b", kill_on_drop: false }` [INFO] [stdout] 11c7b3698e0688c602477ce0f4d5af985cc44ef4d7b1bc60dd91d2d6dd6bc23b