[INFO] cloning repository https://github.com/busyLambda/leadpipe_db
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/busyLambda/leadpipe_db" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FbusyLambda%2Fleadpipe_db", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FbusyLambda%2Fleadpipe_db'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cad64e42b71e167ce21c2be34579b9b5e1b188f9
[INFO] building busyLambda/leadpipe_db against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FbusyLambda%2Fleadpipe_db" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/busyLambda/leadpipe_db on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/busyLambda/leadpipe_db
[INFO] finished tweaking git repo https://github.com/busyLambda/leadpipe_db
[INFO] tweaked toml for git repo https://github.com/busyLambda/leadpipe_db written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/busyLambda/leadpipe_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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 550ea19f80ce0301c7bdc234e5ba9674fadde58ab2254628f4ac4a291f79fac6
[INFO] running `Command { std: "docker" "start" "-a" "550ea19f80ce0301c7bdc234e5ba9674fadde58ab2254628f4ac4a291f79fac6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "550ea19f80ce0301c7bdc234e5ba9674fadde58ab2254628f4ac4a291f79fac6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "550ea19f80ce0301c7bdc234e5ba9674fadde58ab2254628f4ac4a291f79fac6", kill_on_drop: false }`
[INFO] [stdout] 550ea19f80ce0301c7bdc234e5ba9674fadde58ab2254628f4ac4a291f79fac6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab8b30c038b49b5c1d317ea356cd8350cb03c181290f19374aa6be4761765562
[INFO] running `Command { std: "docker" "start" "-a" "ab8b30c038b49b5c1d317ea356cd8350cb03c181290f19374aa6be4761765562", kill_on_drop: false }`
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling indexmap v2.2.6
[INFO] [stderr]    Compiling leadpipe_db v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/data/object.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `os::unix::fs::FileExt`
[INFO] [stdout]  --> src/storage/page.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     os::unix::fs::FileExt,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/storage/line.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Object` is never constructed
[INFO] [stdout]  --> src/data/object.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Object<'a> {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `fields`, `size_in_bits`, `new`, `add_field`, and `name` are never used
[INFO] [stdout]   --> src/data/object.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl<'a> Object<'a> {
[INFO] [stdout]    | ------------------- associated items in this implementation
[INFO] [stdout] 12 |     pub fn fields(&self) -> &Vec<(String, Type)> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub fn size_in_bits(&self) -> &u64 {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub fn new(name: &'a str) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn add_field(&mut self, name: String, _type: Type) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn name(&self) -> &'a str {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Type` is never used
[INFO] [stdout]  --> src/data/_type.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum Type {
[INFO] [stdout]   |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `size_in_bits` is never used
[INFO] [stdout]   --> src/data/_type.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Type {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 17 |     pub fn size_in_bits(&self) -> u64 {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Page` is never constructed
[INFO] [stdout]   --> src/storage/page.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Page<'a> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `create`, `read`, and `write` are never used
[INFO] [stdout]    --> src/storage/page.rs:22:12
[INFO] [stdout]     |
[INFO] [stdout] 21  | impl<'a> Page<'a> {
[INFO] [stdout]     | ----------------- associated items in this implementation
[INFO] [stdout] 22  |     pub fn new(index: usize, object: &'a Object<'a>, total: u64) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 34  |     pub fn create(&self) -> Result<File, std::io::Error> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 38  |     pub fn read(&self, index: u64) -> Result<String, Error> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 126 |     pub fn write(&mut self, line: Line) -> Result<String, Error> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Line` is never constructed
[INFO] [stdout]  --> src/storage/line.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Line {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `fields`, `new`, `add_field`, and `to_string` are never used
[INFO] [stdout]   --> src/storage/line.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl Line {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout] 10 |     pub fn fields(&self) -> &Vec<(String, Value)> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub fn add_field(&mut self, name: String, value: Value) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub fn to_string(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Value` is never used
[INFO] [stdout]  --> src/storage/value.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum Value {
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Value` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_string` is never used
[INFO] [stdout]   --> src/storage/value.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl Value {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 19 |     pub fn to_string(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `Command { std: "docker" "inspect" "ab8b30c038b49b5c1d317ea356cd8350cb03c181290f19374aa6be4761765562", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab8b30c038b49b5c1d317ea356cd8350cb03c181290f19374aa6be4761765562", kill_on_drop: false }`
[INFO] [stdout] ab8b30c038b49b5c1d317ea356cd8350cb03c181290f19374aa6be4761765562
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2781ace2fa77fdef43993532f77797dc67ba3282df7430ab06e1ee480d6fb102
[INFO] running `Command { std: "docker" "start" "-a" "2781ace2fa77fdef43993532f77797dc67ba3282df7430ab06e1ee480d6fb102", kill_on_drop: false }`
[INFO] [stderr]    Compiling leadpipe_db v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/data/object.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `os::unix::fs::FileExt`
[INFO] [stdout]  --> src/storage/page.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     os::unix::fs::FileExt,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/storage/line.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/data/_type.rs:2:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | pub enum Type {
[INFO] [stdout]    |          ---- variants in this enum
[INFO] [stdout] 2  |     UInt8,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 3  |     UInt16,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 4  |     UInt32,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 5  |     UInt64,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 6  |     UInt128,
[INFO] [stdout] 7  |     Int8,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 8  |     Int16,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 9  |     Int32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 10 |     Int64,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 11 |     Int128,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 12 |     String(u16),
[INFO] [stdout] 13 |     Bool,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `index` is never read
[INFO] [stdout]   --> src/storage/page.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Page<'a> {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 15 |     index: usize,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/storage/value.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 |     Bool([u8; 1]),
[INFO] [stdout]    |     ---- ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Value` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 15 |     Bool(()),
[INFO] [stdout]    |          ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "2781ace2fa77fdef43993532f77797dc67ba3282df7430ab06e1ee480d6fb102", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2781ace2fa77fdef43993532f77797dc67ba3282df7430ab06e1ee480d6fb102", kill_on_drop: false }`
[INFO] [stdout] 2781ace2fa77fdef43993532f77797dc67ba3282df7430ab06e1ee480d6fb102