[INFO] cloning repository https://github.com/Mads505m/RustMemoryMangementExam2025
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Mads505m/RustMemoryMangementExam2025" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMads505m%2FRustMemoryMangementExam2025", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMads505m%2FRustMemoryMangementExam2025'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 382c8c4b19e50c2378c15a7ccb65df5311394d2b
[INFO] checking Mads505m/RustMemoryMangementExam2025 against try#0e1f5e292c80a395d02835ac656d141e992caf89 for pr-145605
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMads505m%2FRustMemoryMangementExam2025" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Mads505m/RustMemoryMangementExam2025
[INFO] finished tweaking git repo https://github.com/Mads505m/RustMemoryMangementExam2025
[INFO] tweaked toml for git repo https://github.com/Mads505m/RustMemoryMangementExam2025 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Mads505m/RustMemoryMangementExam2025 on toolchain 0e1f5e292c80a395d02835ac656d141e992caf89
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0e1f5e292c80a395d02835ac656d141e992caf89" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Mads505m/RustMemoryMangementExam2025 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" "+0e1f5e292c80a395d02835ac656d141e992caf89" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+0e1f5e292c80a395d02835ac656d141e992caf89" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0316a28d339b86c181f9dda473bea02b6fbc98bae6a72a5995e616dd4e9889c9
[INFO] running `Command { std: "docker" "start" "-a" "0316a28d339b86c181f9dda473bea02b6fbc98bae6a72a5995e616dd4e9889c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0316a28d339b86c181f9dda473bea02b6fbc98bae6a72a5995e616dd4e9889c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0316a28d339b86c181f9dda473bea02b6fbc98bae6a72a5995e616dd4e9889c9", kill_on_drop: false }`
[INFO] [stdout] 0316a28d339b86c181f9dda473bea02b6fbc98bae6a72a5995e616dd4e9889c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+0e1f5e292c80a395d02835ac656d141e992caf89" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a924f0423c328ac7dd29a9ae7357e34e3e54717933c130cacd42929ca5a1890f
[INFO] running `Command { std: "docker" "start" "-a" "a924f0423c328ac7dd29a9ae7357e34e3e54717933c130cacd42929ca5a1890f", kill_on_drop: false }`
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[INFO] [stderr]    Compiling sct v0.7.1
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[INFO] [stderr]     Checking hash256-std-hasher v0.15.2
[INFO] [stderr]     Checking sp-runtime-interface v17.0.0
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[INFO] [stderr]    Compiling object v0.36.7
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[INFO] [stderr]    Compiling rustls-native-certs v0.6.3
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[INFO] [stderr]    Compiling rustc-hash v1.1.0
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[INFO] [stderr]    Compiling arrayref v0.3.9
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[INFO] [stderr]    Compiling static_assertions v1.1.0
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[INFO] [stderr]    Compiling darling_core v0.20.11
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[INFO] [stderr]    Compiling subxt-metadata v0.32.1
[INFO] [stderr]    Compiling jsonrpsee v0.20.4
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[INFO] [stderr]    Compiling darling_macro v0.20.11
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[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking scale-encode v0.5.0
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]    Compiling darling v0.20.11
[INFO] [stderr]     Checking sp-weights v20.0.0
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[INFO] [stderr]    Compiling subxt-codegen v0.32.1
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[INFO] [stderr]    Compiling rust_decimal v1.37.1
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
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[INFO] [stderr]     Checking ipnet v2.11.0
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[INFO] [stderr]    Compiling subxt-macro v0.32.1
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[INFO] [stderr]     Checking MemoryMangementRust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `windows`
[INFO] [stdout]  --> src/hukommelsestest.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use windows::{
[INFO] [stdout]   |     ^^^^^^^ use of unresolved module or unlinked crate `windows`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `windows`, use `cargo add windows` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `windows`
[INFO] [stdout]  --> src/hukommelsestest.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use windows::{
[INFO] [stdout]   |     ^^^^^^^ use of unresolved module or unlinked crate `windows`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `windows`, use `cargo add windows` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s2`
[INFO] [stdout]  --> src/ownership.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let s2 = s1;
[INFO] [stdout]   |         ^^ help: if this is intentional, prefix it with an underscore: `_s2`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0382]: borrow of moved value: `s1`
[INFO] [stdout]  --> src/ownership.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let s1 = String::from("Hej");
[INFO] [stdout]   |         -- move occurs because `s1` has type `String`, which does not implement the `Copy` trait
[INFO] [stdout] 3 |     let s2 = s1;
[INFO] [stdout]   |              -- value moved here
[INFO] [stdout] 4 |     // Fejl: s1 er ikke længere gyldig
[INFO] [stdout] 5 |     println!("{}", s1);
[INFO] [stdout]   |                    ^^ value borrowed here after move
[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] help: consider cloning the value if the performance cost is acceptable
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let s2 = s1.clone();
[INFO] [stdout]   |                ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s2`
[INFO] [stdout]  --> src/ownership.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let s2 = s1;
[INFO] [stdout]   |         ^^ help: if this is intentional, prefix it with an underscore: `_s2`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r3`
[INFO] [stdout]  --> src/borrow.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let r3 = &mut s;
[INFO] [stdout]   |         ^^ help: if this is intentional, prefix it with an underscore: `_r3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0502]: cannot borrow `s` as mutable because it is also borrowed as immutable
[INFO] [stdout]  --> src/borrow.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let r1 = &s;  // immutable borrow
[INFO] [stdout]   |              -- immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 6 |     let r3 = &mut s;
[INFO] [stdout]   |              ^^^^^^ mutable borrow occurs here
[INFO] [stdout] 7 |     println!("{}, {}", r1, r2);
[INFO] [stdout]   |                        -- immutable borrow later used here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r3`
[INFO] [stdout]   --> src/borrow.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let r3 = &mut s;
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_r3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r3`
[INFO] [stdout]   --> src/main.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let r3 = &mut s;  // mutable borrow mens r1 og r2 ikke har flere referencer
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_r3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s2`
[INFO] [stdout]   --> src/main.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let s2 = s1;
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_s2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/main.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let mut x = 5;
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let mut x = 5;
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0382]: borrow of moved value: `s1`
[INFO] [stdout]   --> src/main.rs:28:20
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let s1 = String::from("Hej");
[INFO] [stdout]    |         -- move occurs because `s1` has type `String`, which does not implement the `Copy` trait
[INFO] [stdout] 26 |     let s2 = s1;
[INFO] [stdout]    |              -- value moved here
[INFO] [stdout] 27 |     // Fejl: s1 er ikke længere gyldig
[INFO] [stdout] 28 |     println!("{}", s1);
[INFO] [stdout]    |                    ^^ value borrowed here after move
[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] help: consider cloning the value if the performance cost is acceptable
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let s2 = s1.clone();
[INFO] [stdout]    |                ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0382, E0433, E0502.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0382`.
[INFO] [stdout] 
[INFO] [stdout] error[E0382]: borrow of moved value: `s1`
[INFO] [stdout]  --> src/ownership.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let s1 = String::from("Hej");
[INFO] [stdout]   |         -- move occurs because `s1` has type `String`, which does not implement the `Copy` trait
[INFO] [stdout] 3 |     let s2 = s1;
[INFO] [stdout]   |              -- value moved here
[INFO] [stdout] 4 |     // Fejl: s1 er ikke længere gyldig
[INFO] [stdout] 5 |     println!("{}", s1);
[INFO] [stdout]   |                    ^^ value borrowed here after move
[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] help: consider cloning the value if the performance cost is acceptable
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let s2 = s1.clone();
[INFO] [stdout]   |                ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r3`
[INFO] [stdout]  --> src/borrow.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let r3 = &mut s;
[INFO] [stdout]   |         ^^ help: if this is intentional, prefix it with an underscore: `_r3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0502]: cannot borrow `s` as mutable because it is also borrowed as immutable
[INFO] [stdout]  --> src/borrow.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let r1 = &s;  // immutable borrow
[INFO] [stdout]   |              -- immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 6 |     let r3 = &mut s;
[INFO] [stdout]   |              ^^^^^^ mutable borrow occurs here
[INFO] [stdout] 7 |     println!("{}, {}", r1, r2);
[INFO] [stdout]   |                        -- immutable borrow later used here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r3`
[INFO] [stdout]   --> src/borrow.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let r3 = &mut s;
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_r3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r3`
[INFO] [stdout]   --> src/main.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let r3 = &mut s;  // mutable borrow mens r1 og r2 ikke har flere referencer
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_r3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s2`
[INFO] [stdout]   --> src/main.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let s2 = s1;
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_s2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/main.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let mut x = 5;
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let mut x = 5;
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0382]: borrow of moved value: `s1`
[INFO] [stdout]   --> src/main.rs:28:20
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let s1 = String::from("Hej");
[INFO] [stdout]    |         -- move occurs because `s1` has type `String`, which does not implement the `Copy` trait
[INFO] [stdout] 26 |     let s2 = s1;
[INFO] [stdout]    |              -- value moved here
[INFO] [stdout] 27 |     // Fejl: s1 er ikke længere gyldig
[INFO] [stdout] 28 |     println!("{}", s1);
[INFO] [stdout]    |                    ^^ value borrowed here after move
[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] help: consider cloning the value if the performance cost is acceptable
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let s2 = s1.clone();
[INFO] [stdout]    |                ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `MemoryMangementRust` (bin "MemoryMangementRust" test) due to 4 previous errors; 7 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] Some errors have detailed explanations: E0382, E0433, E0502.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0382`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `MemoryMangementRust` (bin "MemoryMangementRust") due to 4 previous errors; 7 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "a924f0423c328ac7dd29a9ae7357e34e3e54717933c130cacd42929ca5a1890f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a924f0423c328ac7dd29a9ae7357e34e3e54717933c130cacd42929ca5a1890f", kill_on_drop: false }`
[INFO] [stdout] a924f0423c328ac7dd29a9ae7357e34e3e54717933c130cacd42929ca5a1890f