[INFO] cloning repository https://github.com/ShapkinSA/HelloWorldRust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ShapkinSA/HelloWorldRust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShapkinSA%2FHelloWorldRust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShapkinSA%2FHelloWorldRust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b78cd65c4d33a6076f442cec3b29c77beba23c15
[INFO] checking ShapkinSA/HelloWorldRust against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShapkinSA%2FHelloWorldRust" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ShapkinSA/HelloWorldRust on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ShapkinSA/HelloWorldRust
[INFO] finished tweaking git repo https://github.com/ShapkinSA/HelloWorldRust
[INFO] tweaked toml for git repo https://github.com/ShapkinSA/HelloWorldRust written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ShapkinSA/HelloWorldRust 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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a4b83274561cd634ae7e620f7f803bdd15c45d2e8594f59d586179b4e14c1c0a
[INFO] running `Command { std: "docker" "start" "-a" "a4b83274561cd634ae7e620f7f803bdd15c45d2e8594f59d586179b4e14c1c0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4b83274561cd634ae7e620f7f803bdd15c45d2e8594f59d586179b4e14c1c0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4b83274561cd634ae7e620f7f803bdd15c45d2e8594f59d586179b4e14c1c0a", kill_on_drop: false }`
[INFO] [stdout] a4b83274561cd634ae7e620f7f803bdd15c45d2e8594f59d586179b4e14c1c0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8db30a7650c6fecabe5c1c8e12ac65149ff7a3f012308ad72827b8b3a55a012e
[INFO] running `Command { std: "docker" "start" "-a" "8db30a7650c6fecabe5c1c8e12ac65149ff7a3f012308ad72827b8b3a55a012e", kill_on_drop: false }`
[INFO] [stderr]     Checking HelloWorldRust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::ffi::c_int`
[INFO] [stdout]  --> src/bin/match.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ffi::c_int;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ffi::c_int`
[INFO] [stdout]  --> src/bin/enum.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ffi::c_int;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::os::raw::c_uint`
[INFO] [stdout]  --> src/bin/enum.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::os::raw::c_uint;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::os::raw::c_uint`
[INFO] [stdout]  --> src/bin/match.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::os::raw::c_uint;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ffi::c_int`
[INFO] [stdout]  --> src/bin/struct.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ffi::c_int;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `First`, `Second`, and `Third` are never constructed
[INFO] [stdout]  --> src/bin/match.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | enum MyEnum {
[INFO] [stdout]   |      ------ variants in this enum
[INFO] [stdout] 5 |     First,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 6 |     Second,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 7 |     Third,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ffi::c_int`
[INFO] [stdout]  --> src/bin/expressions.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ffi::c_int;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ffi::c_int`
[INFO] [stdout]  --> src/bin/references.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ffi::c_int;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ffi::c_int`
[INFO] [stdout]  --> src/bin/struct.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ffi::c_int;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]  --> src/bin/references.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 |         if(x==10){
[INFO] [stdout]   |           ^     ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 7 -         if(x==10){
[INFO] [stdout] 7 +         if x==10 {
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ffi::c_int`
[INFO] [stdout]  --> src/bin/loop.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ffi::c_int;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::os::raw::c_uint`
[INFO] [stdout]  --> src/bin/loop.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::os::raw::c_uint;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ffi::c_int`
[INFO] [stdout]  --> src/bin/references.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ffi::c_int;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0502]: cannot borrow `x` as immutable because it is also borrowed as mutable
[INFO] [stdout]   --> src/bin/expressions.rs:10:15
[INFO] [stdout]    |
[INFO] [stdout] 6  |     let r : &mut i32 = &mut x;
[INFO] [stdout]    |                        ------ mutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 10 |     println!("{x}");
[INFO] [stdout]    |               ^^^ immutable borrow occurs here
[INFO] [stdout] 11 |
[INFO] [stdout] 12 |     *r+=1;
[INFO] [stdout]    |     ----- mutable borrow later used here
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::format_args_nl` 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: unnecessary parentheses around `if` condition
[INFO] [stdout]  --> src/bin/references.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 |         if(x==10){
[INFO] [stdout]   |           ^     ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 7 -         if(x==10){
[INFO] [stdout] 7 +         if x==10 {
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0502`.
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `HelloWorldRust` (bin "expressions" test) due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused import: `std::ffi::c_int`
[INFO] [stdout]  --> src/bin/test_2.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ffi::c_int;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ffi::c_int`
[INFO] [stdout]  --> src/bin/match_pair.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ffi::c_int;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::os::raw::c_uint`
[INFO] [stdout]  --> src/bin/match_pair.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::os::raw::c_uint;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ffi::c_int`
[INFO] [stdout]  --> src/bin/loop.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ffi::c_int;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::os::raw::c_uint`
[INFO] [stdout]  --> src/bin/loop.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::os::raw::c_uint;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ffi::c_int`
[INFO] [stdout]  --> src/bin/generics.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ffi::c_int;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::os::raw::c_uint`
[INFO] [stdout]  --> src/bin/generics.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::os::raw::c_uint;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ffi::c_int`
[INFO] [stdout]  --> src/bin/test_2.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ffi::c_int;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `size` is never read
[INFO] [stdout]  --> src/bin/generics.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Example {
[INFO] [stdout]   |        ------- field in this struct
[INFO] [stdout] 5 |     count: i32,
[INFO] [stdout] 6 |     size : i32,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8db30a7650c6fecabe5c1c8e12ac65149ff7a3f012308ad72827b8b3a55a012e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8db30a7650c6fecabe5c1c8e12ac65149ff7a3f012308ad72827b8b3a55a012e", kill_on_drop: false }`
[INFO] [stdout] 8db30a7650c6fecabe5c1c8e12ac65149ff7a3f012308ad72827b8b3a55a012e