[INFO] cloning repository https://github.com/trdthg/my-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/trdthg/my-rust-db" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrdthg%2Fmy-rust-db", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrdthg%2Fmy-rust-db'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d7ddb8f4d47d418932d13009da1e96f60b1c2cdb
[INFO] checking trdthg/my-rust-db against try#0bdee9e879c87b7211d316e9152109cfd46c576b for pr-150097
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrdthg%2Fmy-rust-db" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/trdthg/my-rust-db
[INFO] finished tweaking git repo https://github.com/trdthg/my-rust-db
[INFO] tweaked toml for git repo https://github.com/trdthg/my-rust-db written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/trdthg/my-rust-db on toolchain 0bdee9e879c87b7211d316e9152109cfd46c576b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0bdee9e879c87b7211d316e9152109cfd46c576b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/trdthg/my-rust-db 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" "+0bdee9e879c87b7211d316e9152109cfd46c576b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cc v1.0.70
[INFO] [stderr]   Downloaded serde_json v1.0.67
[INFO] [stderr]   Downloaded bit v0.1.1
[INFO] [stderr]   Downloaded backtrace v0.3.61
[INFO] [stderr]   Downloaded syn v1.0.76
[INFO] [stderr]   Downloaded object v0.26.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0bdee9e879c87b7211d316e9152109cfd46c576b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 70567f903fd677b43bf1997b7ab183c1cb15be921eff67db2f0d5ca14f24ae10
[INFO] running `Command { std: "docker" "start" "-a" "70567f903fd677b43bf1997b7ab183c1cb15be921eff67db2f0d5ca14f24ae10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70567f903fd677b43bf1997b7ab183c1cb15be921eff67db2f0d5ca14f24ae10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70567f903fd677b43bf1997b7ab183c1cb15be921eff67db2f0d5ca14f24ae10", kill_on_drop: false }`
[INFO] [stdout] 70567f903fd677b43bf1997b7ab183c1cb15be921eff67db2f0d5ca14f24ae10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0bdee9e879c87b7211d316e9152109cfd46c576b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ae361aa2e53ef8c7c00a947e0fa8d90d1dd346e7351304e502207c7bf19f4522
[INFO] running `Command { std: "docker" "start" "-a" "ae361aa2e53ef8c7c00a947e0fa8d90d1dd346e7351304e502207c7bf19f4522", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking gimli v0.25.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking bit v0.1.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking object v0.26.2
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking addr2line v0.16.0
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking lists v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `BufRead` and `BufReader`
[INFO] [stdout]  --> src/http/client.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{BufRead, BufReader, Read, Write};
[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::collections::HashMap`
[INFO] [stdout]  --> src/parser/token.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `fmt::Result` and `iter`
[INFO] [stdout]  --> src/parser/token.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{fmt::Result, iter};
[INFO] [stdout]   |           ^^^^^^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `ANNO_PRE` should have an upper camel case name
[INFO] [stdout]   --> src/parser/token.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     ANNO_PRE, // /
[INFO] [stdout]    |     ^^^^^^^^ help: convert the identifier to upper camel case: `AnnoPre`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `ANNO_A` should have an upper camel case name
[INFO] [stdout]   --> src/parser/token.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     ANNO_A,   // //
[INFO] [stdout]    |     ^^^^^^ help: convert the identifier to upper camel case: `AnnoA`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `ANNO_B` should have an upper camel case name
[INFO] [stdout]   --> src/parser/token.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     ANNO_B,   // /*
[INFO] [stdout]    |     ^^^^^^ help: convert the identifier to upper camel case: `AnnoB`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `ANNO_B2` should have an upper camel case name
[INFO] [stdout]   --> src/parser/token.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     ANNO_B2,  // /* * / *
[INFO] [stdout]    |     ^^^^^^^ help: convert the identifier to upper camel case: `AnnoB2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead` and `BufReader`
[INFO] [stdout]  --> src/http/client.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{BufRead, BufReader, Read, Write};
[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::collections::HashMap`
[INFO] [stdout]  --> src/parser/token.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `fmt::Result` and `iter`
[INFO] [stdout]  --> src/parser/token.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{fmt::Result, iter};
[INFO] [stdout]   |           ^^^^^^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `ANNO_PRE` should have an upper camel case name
[INFO] [stdout]   --> src/parser/token.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     ANNO_PRE, // /
[INFO] [stdout]    |     ^^^^^^^^ help: convert the identifier to upper camel case: `AnnoPre`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `ANNO_A` should have an upper camel case name
[INFO] [stdout]   --> src/parser/token.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     ANNO_A,   // //
[INFO] [stdout]    |     ^^^^^^ help: convert the identifier to upper camel case: `AnnoA`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `ANNO_B` should have an upper camel case name
[INFO] [stdout]   --> src/parser/token.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     ANNO_B,   // /*
[INFO] [stdout]    |     ^^^^^^ help: convert the identifier to upper camel case: `AnnoB`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `ANNO_B2` should have an upper camel case name
[INFO] [stdout]   --> src/parser/token.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     ANNO_B2,  // /* * / *
[INFO] [stdout]    |     ^^^^^^^ help: convert the identifier to upper camel case: `AnnoB2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem::size_of`
[INFO] [stdout]    --> src/bptree/bptree.rs:215:9
[INFO] [stdout]     |
[INFO] [stdout] 215 |     use std::mem::size_of;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `empty_list_len` is assigned to, but never used
[INFO] [stdout]   --> src/core/row.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |         let mut empty_list_len = 0;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_empty_list_len` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]   --> src/core/row.rs:50:18
[INFO] [stdout]    |
[INFO] [stdout] 50 |         for (i, (k, v)) in parser.pfields.iter().zip(parser.pvalues).enumerate() {
[INFO] [stdout]    |                  ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty_list_len` is never read
[INFO] [stdout]   --> src/core/row.rs:79:25
[INFO] [stdout]    |
[INFO] [stdout] 79 |                         empty_list_len += 1;
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `content_length`
[INFO] [stdout]    --> src/http/client.rs:109:26
[INFO] [stdout]     |
[INFO] [stdout] 109 |                     Some(content_length) => {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_content_length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `message_body`
[INFO] [stdout]    --> src/http/client.rs:153:35
[INFO] [stdout]     |
[INFO] [stdout] 153 |     pub fn send_output(&mut self, message_body: Option<String>, encode_chunked: bool) {
[INFO] [stdout]     |                                   ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message_body`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `encode_chunked`
[INFO] [stdout]    --> src/http/client.rs:153:65
[INFO] [stdout]     |
[INFO] [stdout] 153 |     pub fn send_output(&mut self, message_body: Option<String>, encode_chunked: bool) {
[INFO] [stdout]     |                                                                 ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_encode_chunked`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `method`
[INFO] [stdout]    --> src/http/client.rs:196:29
[INFO] [stdout]     |
[INFO] [stdout] 196 |     pub fn _validate_method(method: &str) -> bool {
[INFO] [stdout]     |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_method`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/parser/token.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let mut mark: usize = 0;
[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/parser/token.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let mut chars: Vec<char> = code.chars().into_iter().collect();
[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/parser/token.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let mut chars_: Vec<char> = chars.clone();
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mark`
[INFO] [stdout]   --> src/parser/token.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let mut mark: usize = 0;
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mark`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tuple`
[INFO] [stdout]    --> src/bptree/bptree.rs:161:25
[INFO] [stdout]     |
[INFO] [stdout] 161 |                     for tuple in &leaf.unwrap().borrow().ids {
[INFO] [stdout]     |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_tuple`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tuple`
[INFO] [stdout]    --> src/bptree/bptree.rs:198:25
[INFO] [stdout]     |
[INFO] [stdout] 198 |                     for tuple in &leaf.unwrap().borrow().ids {
[INFO] [stdout]     |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_tuple`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `RequestState` is never used
[INFO] [stdout]   --> src/http/client.rs:15:6
[INFO] [stdout]    |
[INFO] [stdout] 15 | enum RequestState {
[INFO] [stdout]    |      ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `HttpConnection` is never constructed
[INFO] [stdout]   --> src/http/client.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct HttpConnection {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/http/client.rs:40:12
[INFO] [stdout]     |
[INFO] [stdout]  39 | impl HttpConnection {
[INFO] [stdout]     | ------------------- associated items in this implementation
[INFO] [stdout]  40 |     pub fn new(addr: &str) -> Option<Self> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  71 |     pub fn get_hostport(addr: &str) -> Option<(String, usize)> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  84 |     pub fn request(
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 131 |     pub fn putheader(&mut self, header: String, value: String) {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 143 |     pub fn endheader(&mut self, body: Option<String>, encode_chunked: bool) {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 153 |     pub fn send_output(&mut self, message_body: Option<String>, encode_chunked: bool) {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 170 |     pub fn send(&mut self, data: Vec<u8>) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 179 |     pub fn putrequest(&mut self, method: &str, url: &str) -> Option<String> {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 200 |     pub fn get_content_length(body: Option<String>, method: &str) -> Option<usize> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 216 |     pub fn getresponse(&mut self) -> Vec<u8> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `HttpResponse` is never constructed
[INFO] [stdout]    --> src/http/client.rs:232:8
[INFO] [stdout]     |
[INFO] [stdout] 232 | struct HttpResponse {}
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `METHOD_EXCEPTING_BODY` should have a snake case name
[INFO] [stdout]    --> src/http/client.rs:201:13
[INFO] [stdout]     |
[INFO] [stdout] 201 |         let METHOD_EXCEPTING_BODY: Vec<String> =
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `method_excepting_body`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]    --> src/bptree/insert.rs:254:17
[INFO] [stdout]     |
[INFO] [stdout] 254 |                 (*node).ids[pos - 1].link = new_top.borrow().ids[0].link.clone();
[INFO] [stdout]     |                 ^^----^^^^^^^^^^^^^^
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   this raw pointer has type `*mut bptree::bptree::BranchNode`
[INFO] [stdout]     |
[INFO] [stdout]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&mut Vec<bptree::bptree::Node>`
[INFO] [stdout]    --> src/bptree/insert.rs:254:17
[INFO] [stdout]     |
[INFO] [stdout] 254 |                 (*node).ids[pos - 1].link = new_top.borrow().ids[0].link.clone();
[INFO] [stdout]     |                 ^^^^^^^^^^^
[INFO] [stdout]     = note: `#[deny(dangerous_implicit_autorefs)]` on by default
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]     |
[INFO] [stdout] 254 |                 (&mut (*node).ids)[pos - 1].link = new_top.borrow().ids[0].link.clone();
[INFO] [stdout]     |                 +++++            +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/bptree/insert.rs:256:17
[INFO] [stdout]     |
[INFO] [stdout] 256 |                 drop(node);
[INFO] [stdout]     |                 ^^^^^----^
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      argument has type `*mut bptree::bptree::BranchNode`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 256 -                 drop(node);
[INFO] [stdout] 256 +                 let _ = node;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lists` (lib) due to 1 previous error; 26 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: variable `empty_list_len` is assigned to, but never used
[INFO] [stdout]   --> src/core/row.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |         let mut empty_list_len = 0;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_empty_list_len` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]   --> src/core/row.rs:50:18
[INFO] [stdout]    |
[INFO] [stdout] 50 |         for (i, (k, v)) in parser.pfields.iter().zip(parser.pvalues).enumerate() {
[INFO] [stdout]    |                  ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `empty_list_len` is never read
[INFO] [stdout]   --> src/core/row.rs:79:25
[INFO] [stdout]    |
[INFO] [stdout] 79 |                         empty_list_len += 1;
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `content_length`
[INFO] [stdout]    --> src/http/client.rs:109:26
[INFO] [stdout]     |
[INFO] [stdout] 109 |                     Some(content_length) => {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_content_length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `message_body`
[INFO] [stdout]    --> src/http/client.rs:153:35
[INFO] [stdout]     |
[INFO] [stdout] 153 |     pub fn send_output(&mut self, message_body: Option<String>, encode_chunked: bool) {
[INFO] [stdout]     |                                   ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message_body`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `encode_chunked`
[INFO] [stdout]    --> src/http/client.rs:153:65
[INFO] [stdout]     |
[INFO] [stdout] 153 |     pub fn send_output(&mut self, message_body: Option<String>, encode_chunked: bool) {
[INFO] [stdout]     |                                                                 ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_encode_chunked`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `method`
[INFO] [stdout]    --> src/http/client.rs:196:29
[INFO] [stdout]     |
[INFO] [stdout] 196 |     pub fn _validate_method(method: &str) -> bool {
[INFO] [stdout]     |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_method`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/parser/token.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let mut mark: usize = 0;
[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/parser/token.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let mut chars: Vec<char> = code.chars().into_iter().collect();
[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/parser/token.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let mut chars_: Vec<char> = chars.clone();
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mark`
[INFO] [stdout]   --> src/parser/token.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let mut mark: usize = 0;
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mark`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tuple`
[INFO] [stdout]    --> src/bptree/bptree.rs:161:25
[INFO] [stdout]     |
[INFO] [stdout] 161 |                     for tuple in &leaf.unwrap().borrow().ids {
[INFO] [stdout]     |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_tuple`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tuple`
[INFO] [stdout]    --> src/bptree/bptree.rs:198:25
[INFO] [stdout]     |
[INFO] [stdout] 198 |                     for tuple in &leaf.unwrap().borrow().ids {
[INFO] [stdout]     |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_tuple`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bptree/bptree.rs:267:13
[INFO] [stdout]     |
[INFO] [stdout] 267 |         let mut s = vec![0, 1, 1, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55];
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/bptree/bptree.rs:267:13
[INFO] [stdout]     |
[INFO] [stdout] 267 |         let mut s = vec![0, 1, 1, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55];
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num`
[INFO] [stdout]    --> src/bptree/bptree.rs:268:13
[INFO] [stdout]     |
[INFO] [stdout] 268 |         let num = 42;
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/bptree/bptree.rs:291:13
[INFO] [stdout]     |
[INFO] [stdout] 291 |         let b = a[0..1].to_owned();
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `timeout`, `source_address`, and `method` are never read
[INFO] [stdout]   --> src/http/client.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct HttpConnection {
[INFO] [stdout]    |        -------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 27 |     timeout: usize,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 28 |     source_address: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     method: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `METHOD_EXCEPTING_BODY` should have a snake case name
[INFO] [stdout]    --> src/http/client.rs:201:13
[INFO] [stdout]     |
[INFO] [stdout] 201 |         let METHOD_EXCEPTING_BODY: Vec<String> =
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `method_excepting_body`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]    --> src/bptree/insert.rs:254:17
[INFO] [stdout]     |
[INFO] [stdout] 254 |                 (*node).ids[pos - 1].link = new_top.borrow().ids[0].link.clone();
[INFO] [stdout]     |                 ^^----^^^^^^^^^^^^^^
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   this raw pointer has type `*mut bptree::bptree::BranchNode`
[INFO] [stdout]     |
[INFO] [stdout]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&mut Vec<bptree::bptree::Node>`
[INFO] [stdout]    --> src/bptree/insert.rs:254:17
[INFO] [stdout]     |
[INFO] [stdout] 254 |                 (*node).ids[pos - 1].link = new_top.borrow().ids[0].link.clone();
[INFO] [stdout]     |                 ^^^^^^^^^^^
[INFO] [stdout]     = note: `#[deny(dangerous_implicit_autorefs)]` on by default
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]     |
[INFO] [stdout] 254 |                 (&mut (*node).ids)[pos - 1].link = new_top.borrow().ids[0].link.clone();
[INFO] [stdout]     |                 +++++            +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/bptree/insert.rs:256:17
[INFO] [stdout]     |
[INFO] [stdout] 256 |                 drop(node);
[INFO] [stdout]     |                 ^^^^^----^
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      argument has type `*mut bptree::bptree::BranchNode`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 256 -                 drop(node);
[INFO] [stdout] 256 +                 let _ = node;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lists` (lib test) due to 1 previous error; 28 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "ae361aa2e53ef8c7c00a947e0fa8d90d1dd346e7351304e502207c7bf19f4522", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae361aa2e53ef8c7c00a947e0fa8d90d1dd346e7351304e502207c7bf19f4522", kill_on_drop: false }`
[INFO] [stdout] ae361aa2e53ef8c7c00a947e0fa8d90d1dd346e7351304e502207c7bf19f4522
