[INFO] cloning repository https://github.com/raja-dettex/rusterine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/raja-dettex/rusterine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraja-dettex%2Frusterine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraja-dettex%2Frusterine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a33510aa3fa325cc2e8691940cbc44c8cae7f15b
[INFO] checking raja-dettex/rusterine against try#4d8aa70caf2d2f6ef5a31eab47961bf7d0acacb7 for pr-158816
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraja-dettex%2Frusterine" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/raja-dettex/rusterine
[INFO] finished tweaking git repo https://github.com/raja-dettex/rusterine
[INFO] tweaked toml for git repo https://github.com/raja-dettex/rusterine written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/raja-dettex/rusterine on toolchain 4d8aa70caf2d2f6ef5a31eab47961bf7d0acacb7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d8aa70caf2d2f6ef5a31eab47961bf7d0acacb7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/raja-dettex/rusterine 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" "+4d8aa70caf2d2f6ef5a31eab47961bf7d0acacb7" "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-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] c896db7c90b0ea04027ec0b07e71eb4fb56285baa128700ebff98633348ec72e
[INFO] running `Command { std: "docker" "start" "c896db7c90b0ea04027ec0b07e71eb4fb56285baa128700ebff98633348ec72e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c896db7c90b0ea04027ec0b07e71eb4fb56285baa128700ebff98633348ec72e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c896db7c90b0ea04027ec0b07e71eb4fb56285baa128700ebff98633348ec72e" "/opt/rustwide/cargo-home/bin/cargo" "+4d8aa70caf2d2f6ef5a31eab47961bf7d0acacb7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c896db7c90b0ea04027ec0b07e71eb4fb56285baa128700ebff98633348ec72e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c896db7c90b0ea04027ec0b07e71eb4fb56285baa128700ebff98633348ec72e" "/opt/rustwide/cargo-home/bin/cargo" "+4d8aa70caf2d2f6ef5a31eab47961bf7d0acacb7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking smallvec v1.15.0
[INFO] [stderr]    Compiling virtue v0.0.18
[INFO] [stderr]    Compiling anyhow v1.0.97
[INFO] [stderr]     Checking unty v0.0.4
[INFO] [stderr]    Compiling bincode_derive v2.0.1
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]     Checking mio v1.0.3
[INFO] [stderr]     Checking socket2 v0.5.9
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]     Checking tokio v1.44.2
[INFO] [stderr]     Checking serde_json v1.0.140
[INFO] [stderr]     Checking bincode v2.0.1
[INFO] [stderr]     Checking rusterine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Bytes`, `os::unix::fs::FileExt`, and `path::PathBuf`
[INFO] [stdout]  --> src/page.rs:1:62
[INFO] [stdout]   |
[INFO] [stdout] 1 | ...:{self, File}, io::{self, Bytes, ErrorKind, Read, SeekFrom, Write}, os::unix::fs::FileExt, path::PathBuf};
[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 imports: `Bytes`, `os::unix::fs::FileExt`, and `path::PathBuf`
[INFO] [stdout]  --> src/page.rs:1:62
[INFO] [stdout]   |
[INFO] [stdout] 1 | ...:{self, File}, io::{self, Bytes, ErrorKind, Read, SeekFrom, Write}, os::unix::fs::FileExt, path::PathBuf};
[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: `std::io::Error`
[INFO] [stdout]  --> src/page.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/page.rs:170:23
[INFO] [stdout]     |
[INFO] [stdout] 170 |         let page_id = (offset/ self.page_size);
[INFO] [stdout]     |                       ^                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 170 -         let page_id = (offset/ self.page_size);
[INFO] [stdout] 170 +         let page_id = offset/ self.page_size;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Error`
[INFO] [stdout]  --> src/page.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fs::OpenOptions`
[INFO] [stdout]  --> src/storage.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs::OpenOptions, io::{Error, Read}};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/page.rs:170:23
[INFO] [stdout]     |
[INFO] [stdout] 170 |         let page_id = (offset/ self.page_size);
[INFO] [stdout]     |                       ^                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 170 -         let page_id = (offset/ self.page_size);
[INFO] [stdout] 170 +         let page_id = offset/ self.page_size;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fs::OpenOptions`
[INFO] [stdout]  --> src/storage.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs::OpenOptions, io::{Error, Read}};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `PathBuf` and `hash::Hash`
[INFO] [stdout]  --> src/storage.rs:4:33
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{collections::HashMap, hash::Hash, io::{self, ErrorKind}, path::{Path, PathBuf}};
[INFO] [stdout]   |                                 ^^^^^^^^^^                                      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `PathBuf` and `hash::Hash`
[INFO] [stdout]  --> src/storage.rs:4:33
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{collections::HashMap, hash::Hash, io::{self, ErrorKind}, path::{Path, PathBuf}};
[INFO] [stdout]   |                                 ^^^^^^^^^^                                      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ErrorKind` and `path::Path`
[INFO] [stdout]  --> src/journal.rs:1:63
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs::{File, OpenOptions}, io::{self, BufRead, Error, ErrorKind, Read, Write}, path::Path};
[INFO] [stdout]   |                                                               ^^^^^^^^^                ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ErrorKind` and `path::Path`
[INFO] [stdout]  --> src/journal.rs:1:63
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs::{File, OpenOptions}, io::{self, BufRead, Error, ErrorKind, Read, Write}, path::Path};
[INFO] [stdout]   |                                                               ^^^^^^^^^                ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `BufReader`, and `BufWriter`
[INFO] [stdout]  --> src/main.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::io::{BufRead, BufReader, BufWriter, Error, ErrorKind, Read, Write};
[INFO] [stdout]   |               ^^^^^^^  ^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `BufReader`, and `BufWriter`
[INFO] [stdout]  --> src/main.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::io::{BufRead, BufReader, BufWriter, Error, ErrorKind, Read, Write};
[INFO] [stdout]   |               ^^^^^^^  ^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Add`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::ops::Add;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Add`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::ops::Add;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hash::Hash`
[INFO] [stdout]  --> src/main.rs:8:33
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::{collections::HashMap, hash::Hash, io, path::PathBuf};
[INFO] [stdout]   |                                 ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hash::Hash`
[INFO] [stdout]  --> src/main.rs:8:33
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::{collections::HashMap, hash::Hash, io, path::PathBuf};
[INFO] [stdout]   |                                 ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `journal::WAL`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use journal::WAL;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `journal::WAL`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use journal::WAL;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `libc::printf`
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use libc::printf;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `libc::printf`
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use libc::printf;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/storage.rs:1:40
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs::OpenOptions, io::{Error, Read}};
[INFO] [stdout]   |                                        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/journal.rs:1:74
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs::{File, OpenOptions}, io::{self, BufRead, Error, ErrorKind, Read, Write}, path::Path};
[INFO] [stdout]   |                                                                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/storage.rs:1:40
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs::OpenOptions, io::{Error, Read}};
[INFO] [stdout]   |                                        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/journal.rs:1:74
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs::{File, OpenOptions}, io::{self, BufRead, Error, ErrorKind, Read, Write}, path::Path};
[INFO] [stdout]   |                                                                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]    --> src/page.rs:103:96
[INFO] [stdout]     |
[INFO] [stdout] 103 | ..., page_last_written_offset, size)) = if let Some(last_page_id) = self.pages.keys().max().copied() { 
[INFO] [stdout]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]    --> src/page.rs:103:96
[INFO] [stdout]     |
[INFO] [stdout] 103 | ..., page_last_written_offset, size)) = if let Some(last_page_id) = self.pages.keys().max().copied() { 
[INFO] [stdout]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]    --> src/page.rs:251:13
[INFO] [stdout]     |
[INFO] [stdout] 251 |         for id in self.pages.keys().copied().collect::<Vec<_>>() { 
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]    --> src/page.rs:251:13
[INFO] [stdout]     |
[INFO] [stdout] 251 |         for id in self.pages.keys().copied().collect::<Vec<_>>() { 
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/journal.rs:22:18
[INFO] [stdout]    |
[INFO] [stdout] 22 |             let  mut file = File::open(file_path)?;
[INFO] [stdout]    |                  ----^^^^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/journal.rs:22:18
[INFO] [stdout]    |
[INFO] [stdout] 22 |             let  mut file = File::open(file_path)?;
[INFO] [stdout]    |                  ----^^^^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/journal.rs:97:17
[INFO] [stdout]    |
[INFO] [stdout] 97 |             let mut file  = Self::create_file(self.dir_path.clone(), filepath.clone())?;
[INFO] [stdout]    |                 ----^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/journal.rs:97:17
[INFO] [stdout]    |
[INFO] [stdout] 97 |             let mut file  = Self::create_file(self.dir_path.clone(), filepath.clone())?;
[INFO] [stdout]    |                 ----^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `usize`
[INFO] [stdout]    --> src/journal.rs:122:32
[INFO] [stdout]     |
[INFO] [stdout] 122 |         }).max_by_key(|(offset,usize)| *offset) {
[INFO] [stdout]     |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_usize`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `usize`
[INFO] [stdout]    --> src/journal.rs:122:32
[INFO] [stdout]     |
[INFO] [stdout] 122 |         }).max_by_key(|(offset,usize)| *offset) {
[INFO] [stdout]     |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_usize`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]   --> src/main.rs:67:19
[INFO] [stdout]    |
[INFO] [stdout] 67 |         .map_err(|err| std::io::Error::new(ErrorKind::BrokenPipe, "can not decode")) { 
[INFO] [stdout]    |                   ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]   --> src/main.rs:68:23
[INFO] [stdout]    |
[INFO] [stdout] 68 |             Ok((docs, size)) => { 
[INFO] [stdout]    |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]   --> src/main.rs:67:19
[INFO] [stdout]    |
[INFO] [stdout] 67 |         .map_err(|err| std::io::Error::new(ErrorKind::BrokenPipe, "can not decode")) { 
[INFO] [stdout]    |                   ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]   --> src/main.rs:68:23
[INFO] [stdout]    |
[INFO] [stdout] 68 |             Ok((docs, size)) => { 
[INFO] [stdout]    |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> src/main.rs:211:10
[INFO] [stdout]     |
[INFO] [stdout] 211 |     for (index, (content, path)) in file_contents.iter().enumerate() { 
[INFO] [stdout]     |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> src/main.rs:211:10
[INFO] [stdout]     |
[INFO] [stdout] 211 |     for (index, (content, path)) in file_contents.iter().enumerate() { 
[INFO] [stdout]     |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `page_id` is never read
[INFO] [stdout]  --> src/page.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Page { 
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 8 |     page_id: usize,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Page` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `flush_all` and `mark_dirty` are never used
[INFO] [stdout]    --> src/page.rs:250:12
[INFO] [stdout]     |
[INFO] [stdout]  67 | impl PageCacheManager { 
[INFO] [stdout]     | --------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 250 |     pub fn flush_all(&mut self) -> io::Result<()>{ 
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 312 |     pub fn mark_dirty(&mut self, id: usize) -> std::io::Result<()> { 
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `sync` is never used
[INFO] [stdout]   --> src/storage.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl SegmentStore { 
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 77 |     pub fn sync(&mut self) -> io::Result<()> { 
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `page_id` is never read
[INFO] [stdout]  --> src/page.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Page { 
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 8 |     page_id: usize,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Page` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `flush_all` and `mark_dirty` are never used
[INFO] [stdout]    --> src/page.rs:250:12
[INFO] [stdout]     |
[INFO] [stdout]  67 | impl PageCacheManager { 
[INFO] [stdout]     | --------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 250 |     pub fn flush_all(&mut self) -> io::Result<()>{ 
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 312 |     pub fn mark_dirty(&mut self, id: usize) -> std::io::Result<()> { 
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `sync` is never used
[INFO] [stdout]   --> src/storage.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl SegmentStore { 
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 77 |     pub fn sync(&mut self) -> io::Result<()> { 
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/page.rs:140:13
[INFO] [stdout]     |
[INFO] [stdout] 140 |             self.evict();
[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] 140 |             let _ = self.evict();
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/page.rs:242:17
[INFO] [stdout]     |
[INFO] [stdout] 242 |                 self.file.seek(SeekFrom::Start(begin_offset as u64));
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 242 |                 let _ = self.file.seek(SeekFrom::Start(begin_offset as u64));
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/page.rs:244:17
[INFO] [stdout]     |
[INFO] [stdout] 244 |                 self.file.flush();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 244 |                 let _ = self.file.flush();
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/page.rs:140:13
[INFO] [stdout]     |
[INFO] [stdout] 140 |             self.evict();
[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] 140 |             let _ = self.evict();
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/page.rs:270:33
[INFO] [stdout]     |
[INFO] [stdout] 270 | ...                   self.evict();
[INFO] [stdout]     |                       ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 270 |                                 let _ = self.evict();
[INFO] [stdout]     |                                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/page.rs:242:17
[INFO] [stdout]     |
[INFO] [stdout] 242 |                 self.file.seek(SeekFrom::Start(begin_offset as u64));
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 242 |                 let _ = self.file.seek(SeekFrom::Start(begin_offset as u64));
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/page.rs:244:17
[INFO] [stdout]     |
[INFO] [stdout] 244 |                 self.file.flush();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 244 |                 let _ = self.file.flush();
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/page.rs:270:33
[INFO] [stdout]     |
[INFO] [stdout] 270 | ...                   self.evict();
[INFO] [stdout]     |                       ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 270 |                                 let _ = self.evict();
[INFO] [stdout]     |                                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.54s
[INFO] running `Command { std: "docker" "inspect" "c896db7c90b0ea04027ec0b07e71eb4fb56285baa128700ebff98633348ec72e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c896db7c90b0ea04027ec0b07e71eb4fb56285baa128700ebff98633348ec72e", kill_on_drop: false }`
[INFO] [stdout] c896db7c90b0ea04027ec0b07e71eb4fb56285baa128700ebff98633348ec72e
