[INFO] cloning repository https://github.com/devcoder-nedu/rust-tutorial
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/devcoder-nedu/rust-tutorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdevcoder-nedu%2Frust-tutorial", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdevcoder-nedu%2Frust-tutorial'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f0908fb74695586a74a14d305a0c70a02ffbbb9c
[INFO] testing devcoder-nedu/rust-tutorial against nightly-2025-01-18+rustflags=-Zrandomize-layout for randomize-layout-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdevcoder-nedu%2Frust-tutorial" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/devcoder-nedu/rust-tutorial on toolchain nightly-2025-01-18
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2025-01-18" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/devcoder-nedu/rust-tutorial
[INFO] finished tweaking git repo https://github.com/devcoder-nedu/rust-tutorial
[INFO] tweaked toml for git repo https://github.com/devcoder-nedu/rust-tutorial written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/devcoder-nedu/rust-tutorial 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" "+nightly-2025-01-18" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2025-01-18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c340e4a49eebe9e0ae98391e01db97173b3ddc66463cffc9bdda6420ef60bc52
[INFO] running `Command { std: "docker" "start" "-a" "c340e4a49eebe9e0ae98391e01db97173b3ddc66463cffc9bdda6420ef60bc52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c340e4a49eebe9e0ae98391e01db97173b3ddc66463cffc9bdda6420ef60bc52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c340e4a49eebe9e0ae98391e01db97173b3ddc66463cffc9bdda6420ef60bc52", kill_on_drop: false }`
[INFO] [stdout] c340e4a49eebe9e0ae98391e01db97173b3ddc66463cffc9bdda6420ef60bc52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Zrandomize-layout" "-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@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2025-01-18" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 64320a8cae122f53f5b52701fc95768ddcde45830ba32498e0860d3dcfbf14d2
[INFO] running `Command { std: "docker" "start" "-a" "64320a8cae122f53f5b52701fc95768ddcde45830ba32498e0860d3dcfbf14d2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.167
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling bytemuck v1.20.0
[INFO] [stderr]    Compiling iana-time-zone v0.1.61
[INFO] [stderr]    Compiling sha1_smol v1.0.1
[INFO] [stderr]    Compiling atomic v0.6.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling uuid v1.11.0
[INFO] [stderr]    Compiling chrono v0.4.38
[INFO] [stderr]    Compiling rust_tutorial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Instant`
[INFO] [stdout]  --> src/mydatetime.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::time::{Duration, Instant};
[INFO] [stdout]   |                           ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `spawn`
[INFO] [stdout]  --> src/my_mutex.rs:3:19
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::thread::{spawn, scope};
[INFO] [stdout]   |                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `x` is assigned to, but never used
[INFO] [stdout]  --> src/mythreads.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut x = 0u128;
[INFO] [stdout]   |             ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: consider using `_x` instead
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `handle2`
[INFO] [stdout]   --> src/my_mutex.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let handle2 = scope.spawn(my_func2).join();
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_handle2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `model` is never read
[INFO] [stdout]   --> src/myvec.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | struct Car {
[INFO] [stdout]    |        --- field in this struct
[INFO] [stdout] 30 |     manufacturer : String,
[INFO] [stdout] 31 |     model : String,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Car` 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: unused `Result` that must be used
[INFO] [stdout]   --> src/mympsc.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     std::thread::spawn(processor_code).join();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let _ = std::thread::spawn(processor_code).join();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.91s
[INFO] running `Command { std: "docker" "inspect" "64320a8cae122f53f5b52701fc95768ddcde45830ba32498e0860d3dcfbf14d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64320a8cae122f53f5b52701fc95768ddcde45830ba32498e0860d3dcfbf14d2", kill_on_drop: false }`
[INFO] [stdout] 64320a8cae122f53f5b52701fc95768ddcde45830ba32498e0860d3dcfbf14d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Zrandomize-layout" "-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@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2025-01-18" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 743f5a6f9689c9b8bd273e3a56f68dafa64d9184516d05a2c5c39b1a35dbc3ce
[INFO] running `Command { std: "docker" "start" "-a" "743f5a6f9689c9b8bd273e3a56f68dafa64d9184516d05a2c5c39b1a35dbc3ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_tutorial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Instant`
[INFO] [stdout]  --> src/mydatetime.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::time::{Duration, Instant};
[INFO] [stdout]   |                           ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `spawn`
[INFO] [stdout]  --> src/my_mutex.rs:3:19
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::thread::{spawn, scope};
[INFO] [stdout]   |                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `x` is assigned to, but never used
[INFO] [stdout]  --> src/mythreads.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut x = 0u128;
[INFO] [stdout]   |             ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: consider using `_x` instead
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `handle2`
[INFO] [stdout]   --> src/my_mutex.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let handle2 = scope.spawn(my_func2).join();
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_handle2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `model` is never read
[INFO] [stdout]   --> src/myvec.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | struct Car {
[INFO] [stdout]    |        --- field in this struct
[INFO] [stdout] 30 |     manufacturer : String,
[INFO] [stdout] 31 |     model : String,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Car` 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: unused `Result` that must be used
[INFO] [stdout]   --> src/mympsc.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     std::thread::spawn(processor_code).join();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let _ = std::thread::spawn(processor_code).join();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "743f5a6f9689c9b8bd273e3a56f68dafa64d9184516d05a2c5c39b1a35dbc3ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "743f5a6f9689c9b8bd273e3a56f68dafa64d9184516d05a2c5c39b1a35dbc3ce", kill_on_drop: false }`
[INFO] [stdout] 743f5a6f9689c9b8bd273e3a56f68dafa64d9184516d05a2c5c39b1a35dbc3ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Zrandomize-layout" "-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@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2025-01-18" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 05434ced067f12a5b42035e72b8bdd37585a0870466d5e08b0ed4654cfbfb56e
[INFO] running `Command { std: "docker" "start" "-a" "05434ced067f12a5b42035e72b8bdd37585a0870466d5e08b0ed4654cfbfb56e", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `Instant`
[INFO] [stderr]  --> src/mydatetime.rs:3:27
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::time::{Duration, Instant};
[INFO] [stderr]   |                           ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `spawn`
[INFO] [stderr]  --> src/my_mutex.rs:3:19
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::thread::{spawn, scope};
[INFO] [stderr]   |                   ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `x` is assigned to, but never used
[INFO] [stderr]  --> src/mythreads.rs:4:13
[INFO] [stderr]   |
[INFO] [stderr] 4 |     let mut x = 0u128;
[INFO] [stderr]   |             ^
[INFO] [stderr]   |
[INFO] [stderr]   = note: consider using `_x` instead
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `handle2`
[INFO] [stderr]   --> src/my_mutex.rs:34:13
[INFO] [stderr]    |
[INFO] [stderr] 34 |         let handle2 = scope.spawn(my_func2).join();
[INFO] [stderr]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_handle2`
[INFO] [stderr] 
[INFO] [stderr] warning: field `model` is never read
[INFO] [stderr]   --> src/myvec.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 29 | struct Car {
[INFO] [stderr]    |        --- field in this struct
[INFO] [stderr] 30 |     manufacturer : String,
[INFO] [stderr] 31 |     model : String,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Car` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/mympsc.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     std::thread::spawn(processor_code).join();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let _ = std::thread::spawn(processor_code).join();
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_tutorial` (bin "rust_tutorial" test) generated 6 warnings (run `cargo fix --bin "rust_tutorial" --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_tutorial-9dec8d4cfc653b9e)
[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" "05434ced067f12a5b42035e72b8bdd37585a0870466d5e08b0ed4654cfbfb56e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05434ced067f12a5b42035e72b8bdd37585a0870466d5e08b0ed4654cfbfb56e", kill_on_drop: false }`
[INFO] [stdout] 05434ced067f12a5b42035e72b8bdd37585a0870466d5e08b0ed4654cfbfb56e