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[INFO] testing blockchainlover2019/rust-examples against 1.69.0 for beta-1.70-1
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[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/blockchainlover2019/rust-examples on toolchain 1.69.0
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[INFO] crate git repo https://github.com/blockchainlover2019/rust-examples already has a lockfile, it will not be regenerated
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[INFO] [stderr]    Compiling example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]  --> src/main.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let x: u32 = 0;
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.09s
[INFO] running `Command { std: "docker" "inspect" "6a5fb51238507ee38563850ac1989e89c84631be3dfb5ae099413172231b42a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a5fb51238507ee38563850ac1989e89c84631be3dfb5ae099413172231b42a1", kill_on_drop: false }`
[INFO] [stdout] 6a5fb51238507ee38563850ac1989e89c84631be3dfb5ae099413172231b42a1
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 12c180ebfda2da58c5fb40cfeb44ef06ee6e9342dd0687e30fa0476b53335984
[INFO] running `Command { std: "docker" "start" "-a" "12c180ebfda2da58c5fb40cfeb44ef06ee6e9342dd0687e30fa0476b53335984", kill_on_drop: false }`
[INFO] [stderr]    Compiling example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> examples/struct.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let y = x.to_string();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set_first_name` is never used
[INFO] [stdout]   --> examples/struct.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn set_first_name(&mut self, first: &str) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]  --> src/main.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let x: u32 = 0;
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> examples/iterator.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | struct Foo {
[INFO] [stdout]    |        --- field in this struct
[INFO] [stdout] 37 |     name: String
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Foo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> examples/mod.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 52 | /     match somefn() {
[INFO] [stdout] 53 | |
[INFO] [stdout] 54 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 55 |
[INFO] [stdout] 56 |       println!()
[INFO] [stdout]    |       ^^^^^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `$crate::print` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PgPool`
[INFO] [stdout]  --> examples/ex_sqlx.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use sqlx::{postgres::{PgPool, PgPoolOptions}, Row};
[INFO] [stdout]   |                       ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]   --> examples/closures.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let res = f(10);
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0004]: non-exhaustive patterns: `None` and `Some(_)` not covered
[INFO] [stdout]   --> examples/mod.rs:52:11
[INFO] [stdout]    |
[INFO] [stdout] 52 |     match somefn() {
[INFO] [stdout]    |           ^^^^^^^^ patterns `None` and `Some(_)` not covered
[INFO] [stdout]    |
[INFO] [stdout] note: `Option<u32>` defined here
[INFO] [stdout]   --> /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/option.rs:563:1
[INFO] [stdout]   ::: /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/option.rs:567:5
[INFO] [stdout]    |
[INFO] [stdout]    = note: not covered
[INFO] [stdout]   ::: /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/option.rs:571:5
[INFO] [stdout]    |
[INFO] [stdout]    = note: not covered
[INFO] [stdout]    = note: the matched value is of type `Option<u32>`
[INFO] [stdout] help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern, a match arm with multiple or-patterns as shown, or multiple match arms
[INFO] [stdout]    |
[INFO] [stdout] 52 ~     match somefn() {
[INFO] [stdout] 53 +         None | Some(_) => todo!(),
[INFO] [stdout] 54 +     }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `chars`
[INFO] [stdout]   --> examples/mod.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let chars: Vec<char> = s.chars().collect::<Vec<_>>();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_chars`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `utfs`
[INFO] [stdout]   --> examples/mod.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let utfs = str::from_utf8(&bytes).unwrap();
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_utfs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]   --> examples/mod.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |         val => println!("{:?}", refvar)
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0004`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `example` due to 2 previous errors; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "12c180ebfda2da58c5fb40cfeb44ef06ee6e9342dd0687e30fa0476b53335984", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12c180ebfda2da58c5fb40cfeb44ef06ee6e9342dd0687e30fa0476b53335984", kill_on_drop: false }`
[INFO] [stdout] 12c180ebfda2da58c5fb40cfeb44ef06ee6e9342dd0687e30fa0476b53335984
