[INFO] fetching crate cypat_scoring_engine 0.2.3...
[INFO] testing cypat_scoring_engine-0.2.3 against beta-2026-01-20 for beta-1.94-1
[INFO] extracting crate cypat_scoring_engine 0.2.3 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate cypat_scoring_engine 0.2.3
[INFO] finished tweaking crates.io crate cypat_scoring_engine 0.2.3
[INFO] tweaked toml for crates.io crate cypat_scoring_engine 0.2.3 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cypat_scoring_engine 0.2.3 on toolchain beta-2026-01-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "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" "+beta-2026-01-20" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 6 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 78231f2062b6a9a32cd7dc0f47a7630f17e70ea16b1414ac32b5912a741b0ee3
[INFO] running `Command { std: "docker" "start" "-a" "78231f2062b6a9a32cd7dc0f47a7630f17e70ea16b1414ac32b5912a741b0ee3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "78231f2062b6a9a32cd7dc0f47a7630f17e70ea16b1414ac32b5912a741b0ee3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78231f2062b6a9a32cd7dc0f47a7630f17e70ea16b1414ac32b5912a741b0ee3", kill_on_drop: false }`
[INFO] [stdout] 78231f2062b6a9a32cd7dc0f47a7630f17e70ea16b1414ac32b5912a741b0ee3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7073c01bb9ac766cf7f87401691a32172fa363197ceaa0767b63e486d7de85b0
[INFO] running `Command { std: "docker" "start" "-a" "7073c01bb9ac766cf7f87401691a32172fa363197ceaa0767b63e486d7de85b0", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.27
[INFO] [stderr]    Compiling libc v0.2.180
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling cypat_scoring_engine v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `null_mut` and `null`
[INFO] [stdout]  --> src/util/filesystem.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 |     ptr::{null_mut, null}, 
[INFO] [stdout]   |           ^^^^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [optimized + debuginfo] target(s) in 2.33s
[INFO] running `Command { std: "docker" "inspect" "7073c01bb9ac766cf7f87401691a32172fa363197ceaa0767b63e486d7de85b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7073c01bb9ac766cf7f87401691a32172fa363197ceaa0767b63e486d7de85b0", kill_on_drop: false }`
[INFO] [stdout] 7073c01bb9ac766cf7f87401691a32172fa363197ceaa0767b63e486d7de85b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f70aa667ac744462e31dfccfd80935ff6f4eca0842d3d4e238778eebe4b82456
[INFO] running `Command { std: "docker" "start" "-a" "f70aa667ac744462e31dfccfd80935ff6f4eca0842d3d4e238778eebe4b82456", kill_on_drop: false }`
[INFO] [stdout] warning: unused imports: `null_mut` and `null`
[INFO] [stdout]  --> src/util/filesystem.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 |     ptr::{null_mut, null}, 
[INFO] [stdout]   |           ^^^^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling cypat_scoring_engine v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `null_mut` and `null`
[INFO] [stdout]  --> src/util/filesystem.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 |     ptr::{null_mut, null}, 
[INFO] [stdout]   |           ^^^^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [optimized + debuginfo] target(s) in 6.83s
[INFO] running `Command { std: "docker" "inspect" "f70aa667ac744462e31dfccfd80935ff6f4eca0842d3d4e238778eebe4b82456", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f70aa667ac744462e31dfccfd80935ff6f4eca0842d3d4e238778eebe4b82456", kill_on_drop: false }`
[INFO] [stdout] f70aa667ac744462e31dfccfd80935ff6f4eca0842d3d4e238778eebe4b82456
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1252f9d7463ed6d928362fe72957162fe44698581d4dce62730fa5740db636e3
[INFO] running `Command { std: "docker" "start" "-a" "1252f9d7463ed6d928362fe72957162fe44698581d4dce62730fa5740db636e3", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `null_mut` and `null`
[INFO] [stderr]  --> src/util/filesystem.rs:8:11
[INFO] [stderr]   |
[INFO] [stderr] 8 |     ptr::{null_mut, null}, 
[INFO] [stderr]   |           ^^^^^^^^  ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `cypat_scoring_engine` (lib) generated 1 warning (run `cargo fix --lib -p cypat_scoring_engine` to apply 1 suggestion)
[INFO] [stderr] warning: `cypat_scoring_engine` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [optimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/cypat-1d5e1b407ea98a5e)
[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] [stderr]    Doc-tests cypat
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/engine.rs - engine (line 15) ... FAILED
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] [stdout] test src/lib.rs - (line 18) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/engine.rs - engine (line 15) stdout ----
[INFO] [stdout] error[E0599]: no method named `clone` found for mutable reference `&mut File` in the current scope
[INFO] [stdout]   --> src/engine.rs:23:46
[INFO] [stdout]    |
[INFO] [stdout] 23 |                 std::io::BufReader::new(file.clone()).read_line(&mut string);
[INFO] [stdout]    |                                              ^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `try_clone` with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 23 |                 std::io::BufReader::new(file.try_clone()).read_line(&mut string);
[INFO] [stdout]    |                                              ++++
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `add_score_entry` found for mutable reference `&mut Engine` in the current scope
[INFO] [stdout]   --> src/engine.rs:26:23
[INFO] [stdout]    |
[INFO] [stdout] 26 |                     e.add_score_entry(0, 50, "Wrote Hello World.".to_string());
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `add_score` with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 26 -                     e.add_score_entry(0, 50, "Wrote Hello World.".to_string());
[INFO] [stdout] 26 +                     e.add_score(0, 50, "Wrote Hello World.".to_string());
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 18) stdout ----
[INFO] [stdout] error[E0599]: no method named `clone` found for mutable reference `&mut File` in the current scope
[INFO] [stdout]   --> src/lib.rs:26:46
[INFO] [stdout]    |
[INFO] [stdout] 26 |                 std::io::BufReader::new(file.clone()).read_line(&mut string);
[INFO] [stdout]    |                                              ^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `try_clone` with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 26 |                 std::io::BufReader::new(file.try_clone()).read_line(&mut string);
[INFO] [stdout]    |                                              ++++
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `add_score_entry` found for mutable reference `&mut Engine` in the current scope
[INFO] [stdout]   --> src/lib.rs:29:23
[INFO] [stdout]    |
[INFO] [stdout] 29 |                     e.add_score_entry(0, 50, "Wrote Hello World.".to_string());
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `add_score` with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 29 -                     e.add_score_entry(0, 50, "Wrote Hello World.".to_string());
[INFO] [stdout] 29 +                     e.add_score(0, 50, "Wrote Hello World.".to_string());
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/engine.rs - engine (line 15)
[INFO] [stdout]     src/lib.rs - (line 18)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.35s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1252f9d7463ed6d928362fe72957162fe44698581d4dce62730fa5740db636e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1252f9d7463ed6d928362fe72957162fe44698581d4dce62730fa5740db636e3", kill_on_drop: false }`
[INFO] [stdout] 1252f9d7463ed6d928362fe72957162fe44698581d4dce62730fa5740db636e3
