[INFO] fetching crate no-unwrap 0.1.0...
[INFO] testing no-unwrap-0.1.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate no-unwrap 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate no-unwrap 0.1.0
[INFO] finished tweaking crates.io crate no-unwrap 0.1.0
[INFO] tweaked toml for crates.io crate no-unwrap 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate no-unwrap 0.1.0 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate no-unwrap 0.1.0 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" "+beta-2025-10-28" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 63950f9b0923ed54093210f87b950ad5e75dc18abfd0c5443128622111dd107a
[INFO] running `Command { std: "docker" "start" "-a" "63950f9b0923ed54093210f87b950ad5e75dc18abfd0c5443128622111dd107a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "63950f9b0923ed54093210f87b950ad5e75dc18abfd0c5443128622111dd107a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63950f9b0923ed54093210f87b950ad5e75dc18abfd0c5443128622111dd107a", kill_on_drop: false }`
[INFO] [stdout] 63950f9b0923ed54093210f87b950ad5e75dc18abfd0c5443128622111dd107a
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2bf123365c3dd9bad3d6f78e97faac30f1008d97799dc09f02da3b5ce287f308
[INFO] running `Command { std: "docker" "start" "-a" "2bf123365c3dd9bad3d6f78e97faac30f1008d97799dc09f02da3b5ce287f308", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling object v0.36.7
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling gimli v0.31.1
[INFO] [stderr]    Compiling rustix v1.0.3
[INFO] [stderr]    Compiling linux-raw-sys v0.9.3
[INFO] [stderr]    Compiling owo-colors v4.2.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.24
[INFO] [stderr]    Compiling bitflags v2.9.0
[INFO] [stderr]    Compiling unicode-linebreak v0.1.5
[INFO] [stderr]    Compiling unicode-width v0.2.0
[INFO] [stderr]    Compiling miniz_oxide v0.8.5
[INFO] [stderr]    Compiling is_ci v1.2.0
[INFO] [stderr]    Compiling supports-unicode v3.0.0
[INFO] [stderr]    Compiling supports-hyperlinks v3.1.0
[INFO] [stderr]    Compiling supports-color v3.0.2
[INFO] [stderr]    Compiling unicode-width v0.1.14
[INFO] [stderr]    Compiling textwrap v0.16.2
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling terminal_size v0.4.2
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling addr2line v0.24.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling miette-derive v7.5.0
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling backtrace v0.3.74
[INFO] [stderr]    Compiling backtrace-ext v0.2.1
[INFO] [stderr]    Compiling miette v7.5.0
[INFO] [stderr]    Compiling no-unwrap v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `src` is never read
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     src: NamedSource<String>,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `at` is never read
[INFO] [stdout]   --> src/main.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub at: SourceSpan,
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.65s
[INFO] running `Command { std: "docker" "inspect" "2bf123365c3dd9bad3d6f78e97faac30f1008d97799dc09f02da3b5ce287f308", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bf123365c3dd9bad3d6f78e97faac30f1008d97799dc09f02da3b5ce287f308", kill_on_drop: false }`
[INFO] [stdout] 2bf123365c3dd9bad3d6f78e97faac30f1008d97799dc09f02da3b5ce287f308
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 98ebfea280bacc9700da0e9601fe7f871f5e24cf0f5327f865018d9f1137f5db
[INFO] running `Command { std: "docker" "start" "-a" "98ebfea280bacc9700da0e9601fe7f871f5e24cf0f5327f865018d9f1137f5db", kill_on_drop: false }`
[INFO] [stderr]    Compiling no-unwrap v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `src` is never read
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     src: NamedSource<String>,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `at` is never read
[INFO] [stdout]   --> src/main.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub at: SourceSpan,
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "98ebfea280bacc9700da0e9601fe7f871f5e24cf0f5327f865018d9f1137f5db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98ebfea280bacc9700da0e9601fe7f871f5e24cf0f5327f865018d9f1137f5db", kill_on_drop: false }`
[INFO] [stdout] 98ebfea280bacc9700da0e9601fe7f871f5e24cf0f5327f865018d9f1137f5db
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fdac1aebf978c96974eea4face38f92f0f90c126b4edf74887e8b9c461aba7cf
[INFO] running `Command { std: "docker" "start" "-a" "fdac1aebf978c96974eea4face38f92f0f90c126b4edf74887e8b9c461aba7cf", kill_on_drop: false }`
[INFO] [stderr] warning: value assigned to `src` is never read
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     src: NamedSource<String>,
[INFO] [stderr]    |     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `at` is never read
[INFO] [stderr]   --> src/main.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub at: SourceSpan,
[INFO] [stderr]    |         ^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: `no-unwrap` (bin "no-unwrap" test) generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/no_unwrap-6362fcd922e86b3c)
[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" "fdac1aebf978c96974eea4face38f92f0f90c126b4edf74887e8b9c461aba7cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdac1aebf978c96974eea4face38f92f0f90c126b4edf74887e8b9c461aba7cf", kill_on_drop: false }`
[INFO] [stdout] fdac1aebf978c96974eea4face38f92f0f90c126b4edf74887e8b9c461aba7cf