[INFO] fetching crate rsdbc-core 0.0.1...
[INFO] testing rsdbc-core-0.0.1 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate rsdbc-core 0.0.1 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate rsdbc-core 0.0.1
[INFO] finished tweaking crates.io crate rsdbc-core 0.0.1
[INFO] tweaked toml for crates.io crate rsdbc-core 0.0.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rsdbc-core 0.0.1 on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 50 packages to latest compatible versions
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.17)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 60eb236efe1d4369513005f5f22b51ba1a8bc22ade43a6e51a4e8e5a7f80ab76
[INFO] running `Command { std: "docker" "start" "-a" "60eb236efe1d4369513005f5f22b51ba1a8bc22ade43a6e51a4e8e5a7f80ab76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "60eb236efe1d4369513005f5f22b51ba1a8bc22ade43a6e51a4e8e5a7f80ab76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60eb236efe1d4369513005f5f22b51ba1a8bc22ade43a6e51a4e8e5a7f80ab76", kill_on_drop: false }`
[INFO] [stdout] 60eb236efe1d4369513005f5f22b51ba1a8bc22ade43a6e51a4e8e5a7f80ab76
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d123b5d92d255cfeafd1ac6ede853d84c37087e04d73ce4402e93cf54235bf5
[INFO] running `Command { std: "docker" "start" "-a" "1d123b5d92d255cfeafd1ac6ede853d84c37087e04d73ce4402e93cf54235bf5", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling url v2.5.7
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling rsdbc-core v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `url::Url`
[INFO] [stdout]  --> src/error.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use url::Url;
[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: `Borrow`
[INFO] [stdout]  --> src/lib.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::borrow::{Borrow, Cow};
[INFO] [stdout]   |                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `url`
[INFO] [stdout]    --> src/connection.rs:513:13
[INFO] [stdout]     |
[INFO] [stdout] 513 | fn validate(url: &str) -> Result<()> {
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_url`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `columns`
[INFO] [stdout]    --> src/connection.rs:643:43
[INFO] [stdout]     |
[INFO] [stdout] 643 |     fn return_generated_values(&mut self, columns: &[&str]) -> &mut Self where Self: Sized { //Box<dyn A>
[INFO] [stdout]     |                                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_columns`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rows`
[INFO] [stdout]    --> src/connection.rs:654:30
[INFO] [stdout]     |
[INFO] [stdout] 654 |     fn fetch_size(&mut self, rows: u32) -> &mut Self where Self: Sized { //Box<dyn A>
[INFO] [stdout]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_rows`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `url`
[INFO] [stdout]    --> src/lib.rs:148:21
[INFO] [stdout]     |
[INFO] [stdout] 148 | fn parse_connection(url: &str) {
[INFO] [stdout]     |                     ^^^ help: if this is intentional, prefix it with an underscore: `_url`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/lib.rs:425:32
[INFO] [stdout]     |
[INFO] [stdout] 425 |     fn column_type_name(&self, i: u64) -> String {
[INFO] [stdout]     |                                ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/lib.rs:429:25
[INFO] [stdout]     |
[INFO] [stdout] 429 |     fn precision(&self, i: u64) -> u64 {
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/lib.rs:433:27
[INFO] [stdout]     |
[INFO] [stdout] 433 |     fn schema_name(&self, i: u64) -> String {
[INFO] [stdout]     |                           ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/lib.rs:437:26
[INFO] [stdout]     |
[INFO] [stdout] 437 |     fn table_name(&self, i: u64) -> String {
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/lib.rs:441:27
[INFO] [stdout]     |
[INFO] [stdout] 441 |     fn is_nullable(&self, i: u64) -> String {
[INFO] [stdout]     |                           ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/lib.rs:445:28
[INFO] [stdout]     |
[INFO] [stdout] 445 |     fn is_read_only(&self, i: u64) -> String {
[INFO] [stdout]     |                            ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constants `ISOLATION_LEVEL`, `READ_ONLY`, `NAME`, and `LOCK_WAIT_TIMEOUT` are never used
[INFO] [stdout]   --> src/lib.rs:52:11
[INFO] [stdout]    |
[INFO] [stdout] 50 | impl TransactionOptions {
[INFO] [stdout]    | ----------------------- associated constants in this implementation
[INFO] [stdout] 51 |     /// Isolation level requested for the transaction.
[INFO] [stdout] 52 |     const ISOLATION_LEVEL: &'static str = "isolation_level";
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     const READ_ONLY: &'static str = "read_only";
[INFO] [stdout]    |           ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     const NAME: &'static str = "name";
[INFO] [stdout]    |           ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 61 |     const LOCK_WAIT_TIMEOUT: &'static str = "lock_wait_timeout";
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_connection` is never used
[INFO] [stdout]    --> src/lib.rs:148:4
[INFO] [stdout]     |
[INFO] [stdout] 148 | fn parse_connection(url: &str) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/connection.rs:554:19
[INFO] [stdout]     |
[INFO] [stdout] 553 | impl IsolationLevel {
[INFO] [stdout]     | ------------------- associated function in this implementation
[INFO] [stdout] 554 |     pub(crate) fn new(raw: &str) -> Result<IsolationLevel> {
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.43s
[INFO] running `Command { std: "docker" "inspect" "1d123b5d92d255cfeafd1ac6ede853d84c37087e04d73ce4402e93cf54235bf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d123b5d92d255cfeafd1ac6ede853d84c37087e04d73ce4402e93cf54235bf5", kill_on_drop: false }`
[INFO] [stdout] 1d123b5d92d255cfeafd1ac6ede853d84c37087e04d73ce4402e93cf54235bf5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 056f7ce6065b861514a67a22710c4109116003f5f02c994afc3b091094e5f866
[INFO] running `Command { std: "docker" "start" "-a" "056f7ce6065b861514a67a22710c4109116003f5f02c994afc3b091094e5f866", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `url::Url`
[INFO] [stdout]  --> src/error.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use url::Url;
[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: `Borrow`
[INFO] [stdout]  --> src/lib.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::borrow::{Borrow, Cow};
[INFO] [stdout]   |                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `url`
[INFO] [stdout]    --> src/connection.rs:513:13
[INFO] [stdout]     |
[INFO] [stdout] 513 | fn validate(url: &str) -> Result<()> {
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_url`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `columns`
[INFO] [stdout]    --> src/connection.rs:643:43
[INFO] [stdout]     |
[INFO] [stdout] 643 |     fn return_generated_values(&mut self, columns: &[&str]) -> &mut Self where Self: Sized { //Box<dyn A>
[INFO] [stdout]     |                                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_columns`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rows`
[INFO] [stdout]    --> src/connection.rs:654:30
[INFO] [stdout]     |
[INFO] [stdout] 654 |     fn fetch_size(&mut self, rows: u32) -> &mut Self where Self: Sized { //Box<dyn A>
[INFO] [stdout]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_rows`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `url`
[INFO] [stdout]    --> src/lib.rs:148:21
[INFO] [stdout]     |
[INFO] [stdout] 148 | fn parse_connection(url: &str) {
[INFO] [stdout]     |                     ^^^ help: if this is intentional, prefix it with an underscore: `_url`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/lib.rs:425:32
[INFO] [stdout]     |
[INFO] [stdout] 425 |     fn column_type_name(&self, i: u64) -> String {
[INFO] [stdout]     |                                ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/lib.rs:429:25
[INFO] [stdout]     |
[INFO] [stdout] 429 |     fn precision(&self, i: u64) -> u64 {
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/lib.rs:433:27
[INFO] [stdout]     |
[INFO] [stdout] 433 |     fn schema_name(&self, i: u64) -> String {
[INFO] [stdout]     |                           ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/lib.rs:437:26
[INFO] [stdout]     |
[INFO] [stdout] 437 |     fn table_name(&self, i: u64) -> String {
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/lib.rs:441:27
[INFO] [stdout]     |
[INFO] [stdout] 441 |     fn is_nullable(&self, i: u64) -> String {
[INFO] [stdout]     |                           ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/lib.rs:445:28
[INFO] [stdout]     |
[INFO] [stdout] 445 |     fn is_read_only(&self, i: u64) -> String {
[INFO] [stdout]     |                            ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rsdbc-core v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated constants `ISOLATION_LEVEL`, `READ_ONLY`, `NAME`, and `LOCK_WAIT_TIMEOUT` are never used
[INFO] [stdout]   --> src/lib.rs:52:11
[INFO] [stdout]    |
[INFO] [stdout] 50 | impl TransactionOptions {
[INFO] [stdout]    | ----------------------- associated constants in this implementation
[INFO] [stdout] 51 |     /// Isolation level requested for the transaction.
[INFO] [stdout] 52 |     const ISOLATION_LEVEL: &'static str = "isolation_level";
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     const READ_ONLY: &'static str = "read_only";
[INFO] [stdout]    |           ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     const NAME: &'static str = "name";
[INFO] [stdout]    |           ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 61 |     const LOCK_WAIT_TIMEOUT: &'static str = "lock_wait_timeout";
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_connection` is never used
[INFO] [stdout]    --> src/lib.rs:148:4
[INFO] [stdout]     |
[INFO] [stdout] 148 | fn parse_connection(url: &str) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/connection.rs:554:19
[INFO] [stdout]     |
[INFO] [stdout] 553 | impl IsolationLevel {
[INFO] [stdout]     | ------------------- associated function in this implementation
[INFO] [stdout] 554 |     pub(crate) fn new(raw: &str) -> Result<IsolationLevel> {
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Borrow`
[INFO] [stdout]  --> src/lib.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::borrow::{Borrow, Cow};
[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: `url::Url`
[INFO] [stdout]  --> src/error.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use url::Url;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::RsdbcErrors`
[INFO] [stdout]    --> src/connection.rs:686:9
[INFO] [stdout]     |
[INFO] [stdout] 686 |     use crate::RsdbcErrors;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `url`
[INFO] [stdout]    --> src/connection.rs:513:13
[INFO] [stdout]     |
[INFO] [stdout] 513 | fn validate(url: &str) -> Result<()> {
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_url`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `columns`
[INFO] [stdout]    --> src/connection.rs:643:43
[INFO] [stdout]     |
[INFO] [stdout] 643 |     fn return_generated_values(&mut self, columns: &[&str]) -> &mut Self where Self: Sized { //Box<dyn A>
[INFO] [stdout]     |                                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_columns`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rows`
[INFO] [stdout]    --> src/connection.rs:654:30
[INFO] [stdout]     |
[INFO] [stdout] 654 |     fn fetch_size(&mut self, rows: u32) -> &mut Self where Self: Sized { //Box<dyn A>
[INFO] [stdout]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_rows`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `url`
[INFO] [stdout]    --> src/lib.rs:148:21
[INFO] [stdout]     |
[INFO] [stdout] 148 | fn parse_connection(url: &str) {
[INFO] [stdout]     |                     ^^^ help: if this is intentional, prefix it with an underscore: `_url`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/lib.rs:425:32
[INFO] [stdout]     |
[INFO] [stdout] 425 |     fn column_type_name(&self, i: u64) -> String {
[INFO] [stdout]     |                                ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/lib.rs:429:25
[INFO] [stdout]     |
[INFO] [stdout] 429 |     fn precision(&self, i: u64) -> u64 {
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/lib.rs:433:27
[INFO] [stdout]     |
[INFO] [stdout] 433 |     fn schema_name(&self, i: u64) -> String {
[INFO] [stdout]     |                           ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/lib.rs:437:26
[INFO] [stdout]     |
[INFO] [stdout] 437 |     fn table_name(&self, i: u64) -> String {
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/lib.rs:441:27
[INFO] [stdout]     |
[INFO] [stdout] 441 |     fn is_nullable(&self, i: u64) -> String {
[INFO] [stdout]     |                           ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/lib.rs:445:28
[INFO] [stdout]     |
[INFO] [stdout] 445 |     fn is_read_only(&self, i: u64) -> String {
[INFO] [stdout]     |                            ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constants `ISOLATION_LEVEL`, `READ_ONLY`, `NAME`, and `LOCK_WAIT_TIMEOUT` are never used
[INFO] [stdout]   --> src/lib.rs:52:11
[INFO] [stdout]    |
[INFO] [stdout] 50 | impl TransactionOptions {
[INFO] [stdout]    | ----------------------- associated constants in this implementation
[INFO] [stdout] 51 |     /// Isolation level requested for the transaction.
[INFO] [stdout] 52 |     const ISOLATION_LEVEL: &'static str = "isolation_level";
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     const READ_ONLY: &'static str = "read_only";
[INFO] [stdout]    |           ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     const NAME: &'static str = "name";
[INFO] [stdout]    |           ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 61 |     const LOCK_WAIT_TIMEOUT: &'static str = "lock_wait_timeout";
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_connection` is never used
[INFO] [stdout]    --> src/lib.rs:148:4
[INFO] [stdout]     |
[INFO] [stdout] 148 | fn parse_connection(url: &str) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/connection.rs:554:19
[INFO] [stdout]     |
[INFO] [stdout] 553 | impl IsolationLevel {
[INFO] [stdout]     | ------------------- associated function in this implementation
[INFO] [stdout] 554 |     pub(crate) fn new(raw: &str) -> Result<IsolationLevel> {
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `Command { std: "docker" "inspect" "056f7ce6065b861514a67a22710c4109116003f5f02c994afc3b091094e5f866", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "056f7ce6065b861514a67a22710c4109116003f5f02c994afc3b091094e5f866", kill_on_drop: false }`
[INFO] [stdout] 056f7ce6065b861514a67a22710c4109116003f5f02c994afc3b091094e5f866
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] dec54aed4f3c721cc3a7a3f02ebcd221836dada3dc474166d18fed76876d6b09
[INFO] running `Command { std: "docker" "start" "-a" "dec54aed4f3c721cc3a7a3f02ebcd221836dada3dc474166d18fed76876d6b09", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `url::Url`
[INFO] [stderr]  --> src/error.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use url::Url;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Borrow`
[INFO] [stderr]  --> src/lib.rs:1:19
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::borrow::{Borrow, Cow};
[INFO] [stderr]   |                   ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `url`
[INFO] [stderr]    --> src/connection.rs:513:13
[INFO] [stderr]     |
[INFO] [stderr] 513 | fn validate(url: &str) -> Result<()> {
[INFO] [stderr]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_url`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `columns`
[INFO] [stderr]    --> src/connection.rs:643:43
[INFO] [stderr]     |
[INFO] [stderr] 643 |     fn return_generated_values(&mut self, columns: &[&str]) -> &mut Self where Self: Sized { //Box<dyn A>
[INFO] [stderr]     |                                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_columns`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rows`
[INFO] [stderr]    --> src/connection.rs:654:30
[INFO] [stderr]     |
[INFO] [stderr] 654 |     fn fetch_size(&mut self, rows: u32) -> &mut Self where Self: Sized { //Box<dyn A>
[INFO] [stderr]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_rows`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `url`
[INFO] [stderr]    --> src/lib.rs:148:21
[INFO] [stderr]     |
[INFO] [stderr] 148 | fn parse_connection(url: &str) {
[INFO] [stderr]     |                     ^^^ help: if this is intentional, prefix it with an underscore: `_url`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/lib.rs:425:32
[INFO] [stderr]     |
[INFO] [stderr] 425 |     fn column_type_name(&self, i: u64) -> String {
[INFO] [stderr]     |                                ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/lib.rs:429:25
[INFO] [stderr]     |
[INFO] [stderr] 429 |     fn precision(&self, i: u64) -> u64 {
[INFO] [stderr]     |                         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/lib.rs:433:27
[INFO] [stderr]     |
[INFO] [stderr] 433 |     fn schema_name(&self, i: u64) -> String {
[INFO] [stderr]     |                           ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/lib.rs:437:26
[INFO] [stderr]     |
[INFO] [stderr] 437 |     fn table_name(&self, i: u64) -> String {
[INFO] [stderr]     |                          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/lib.rs:441:27
[INFO] [stderr]     |
[INFO] [stderr] 441 |     fn is_nullable(&self, i: u64) -> String {
[INFO] [stderr]     |                           ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/lib.rs:445:28
[INFO] [stderr]     |
[INFO] [stderr] 445 |     fn is_read_only(&self, i: u64) -> String {
[INFO] [stderr]     |                            ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: associated constants `ISOLATION_LEVEL`, `READ_ONLY`, `NAME`, and `LOCK_WAIT_TIMEOUT` are never used
[INFO] [stderr]   --> src/lib.rs:52:11
[INFO] [stderr]    |
[INFO] [stderr] 50 | impl TransactionOptions {
[INFO] [stderr]    | ----------------------- associated constants in this implementation
[INFO] [stderr] 51 |     /// Isolation level requested for the transaction.
[INFO] [stderr] 52 |     const ISOLATION_LEVEL: &'static str = "isolation_level";
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 55 |     const READ_ONLY: &'static str = "read_only";
[INFO] [stderr]    |           ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 58 |     const NAME: &'static str = "name";
[INFO] [stderr]    |           ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 61 |     const LOCK_WAIT_TIMEOUT: &'static str = "lock_wait_timeout";
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `parse_connection` is never used
[INFO] [stderr]    --> src/lib.rs:148:4
[INFO] [stderr]     |
[INFO] [stderr] 148 | fn parse_connection(url: &str) {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]    --> src/connection.rs:554:19
[INFO] [stderr]     |
[INFO] [stderr] 553 | impl IsolationLevel {
[INFO] [stderr]     | ------------------- associated function in this implementation
[INFO] [stderr] 554 |     pub(crate) fn new(raw: &str) -> Result<IsolationLevel> {
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rsdbc-core` (lib) generated 15 warnings (run `cargo fix --lib -p rsdbc-core` to apply 1 suggestion)
[INFO] [stderr] warning: unused import: `Borrow`
[INFO] [stderr]  --> src/lib.rs:1:19
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::borrow::{Borrow, Cow};
[INFO] [stderr]   |                   ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `url::Url`
[INFO] [stderr]  --> src/error.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use url::Url;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::RsdbcErrors`
[INFO] [stderr]    --> src/connection.rs:686:9
[INFO] [stderr]     |
[INFO] [stderr] 686 |     use crate::RsdbcErrors;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rsdbc-core` (lib test) generated 16 warnings (13 duplicates) (run `cargo fix --lib -p rsdbc-core --tests` to apply 3 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rsdbc_core-93d4c38626e6e19f)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test connection::tests::connection_factory_has_option_should_return_appropriate_bool ... ok
[INFO] [stdout] test connection::tests::connection_factory_options_should_implement_from_str ... ok
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] test connection::tests::missing_connection_factory_option_should_return_none ... ok
[INFO] [stdout] test connection::tests::should_successfully_parse_valid_connection_string ... ok
[INFO] [stdout] test connection::tests::parse_empty_string_should_return_err ... ok
[INFO] [stdout] test connection::tests::programmatic_connection_factory_builder ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.14s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rsdbc_core
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "dec54aed4f3c721cc3a7a3f02ebcd221836dada3dc474166d18fed76876d6b09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dec54aed4f3c721cc3a7a3f02ebcd221836dada3dc474166d18fed76876d6b09", kill_on_drop: false }`
[INFO] [stdout] dec54aed4f3c721cc3a7a3f02ebcd221836dada3dc474166d18fed76876d6b09