[INFO] fetching crate unitig_flipper 0.1.0...
[INFO] testing unitig_flipper-0.1.0 against 1.91.0 for beta-1.92-2
[INFO] extracting crate unitig_flipper 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate unitig_flipper 0.1.0
[INFO] finished tweaking crates.io crate unitig_flipper 0.1.0
[INFO] tweaked toml for crates.io crate unitig_flipper 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate unitig_flipper 0.1.0 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate unitig_flipper 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" "+1.91.0" "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]  Downloading crates ...
[INFO] [stderr]   Downloaded ex v0.1.3
[INFO] [stderr]   Downloaded clap_complete v4.5.1
[INFO] [stderr]   Downloaded jseqio v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 45aaf1cf2d722245f8e4a15cf0a7c49c8445b266606f61ba9933f4e33ef5fe51
[INFO] running `Command { std: "docker" "start" "-a" "45aaf1cf2d722245f8e4a15cf0a7c49c8445b266606f61ba9933f4e33ef5fe51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "45aaf1cf2d722245f8e4a15cf0a7c49c8445b266606f61ba9933f4e33ef5fe51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45aaf1cf2d722245f8e4a15cf0a7c49c8445b266606f61ba9933f4e33ef5fe51", kill_on_drop: false }`
[INFO] [stdout] 45aaf1cf2d722245f8e4a15cf0a7c49c8445b266606f61ba9933f4e33ef5fe51
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=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" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c6c054566af02f2f84c0696f832fe4dde6eefbd2f263798c91d96390d72334c
[INFO] running `Command { std: "docker" "start" "-a" "2c6c054566af02f2f84c0696f832fe4dde6eefbd2f263798c91d96390d72334c", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling ex v0.1.3
[INFO] [stderr]    Compiling getrandom v0.2.12
[INFO] [stderr]    Compiling is-terminal v0.4.12
[INFO] [stderr]    Compiling clap_builder v4.5.2
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling jseqio v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stderr]    Compiling regex-automata v0.4.6
[INFO] [stderr]    Compiling clap_derive v4.5.3
[INFO] [stderr]    Compiling regex v1.10.3
[INFO] [stderr]    Compiling env_logger v0.10.2
[INFO] [stderr]    Compiling clap v4.5.3
[INFO] [stderr]    Compiling clap_complete v4.5.1
[INFO] [stderr]    Compiling unitig_flipper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/main.rs:69:65
[INFO] [stdout]    |
[INFO] [stdout] 69 |     let n_forward = orientations.iter().fold(0_usize, |acc, &x| (acc + (x == Orientation::Forward) as usize));
[INFO] [stdout]    |                                                                 ^                                          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 69 -     let n_forward = orientations.iter().fold(0_usize, |acc, &x| (acc + (x == Orientation::Forward) as usize));
[INFO] [stdout] 69 +     let n_forward = orientations.iter().fold(0_usize, |acc, &x| acc + (x == Orientation::Forward) as usize);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.52s
[INFO] running `Command { std: "docker" "inspect" "2c6c054566af02f2f84c0696f832fe4dde6eefbd2f263798c91d96390d72334c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c6c054566af02f2f84c0696f832fe4dde6eefbd2f263798c91d96390d72334c", kill_on_drop: false }`
[INFO] [stdout] 2c6c054566af02f2f84c0696f832fe4dde6eefbd2f263798c91d96390d72334c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=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" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b468641d3700e99d074204267531879721f4e3e7aded75928ea944850ea73e9
[INFO] running `Command { std: "docker" "start" "-a" "3b468641d3700e99d074204267531879721f4e3e7aded75928ea944850ea73e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling unitig_flipper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io::BufReader`
[INFO] [stdout]    --> src/lib.rs:207:9
[INFO] [stdout]     |
[INFO] [stdout] 207 |     use std::io::BufReader;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/main.rs:69:65
[INFO] [stdout]    |
[INFO] [stdout] 69 |     let n_forward = orientations.iter().fold(0_usize, |acc, &x| (acc + (x == Orientation::Forward) as usize));
[INFO] [stdout]    |                                                                 ^                                          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 69 -     let n_forward = orientations.iter().fold(0_usize, |acc, &x| (acc + (x == Orientation::Forward) as usize));
[INFO] [stdout] 69 +     let n_forward = orientations.iter().fold(0_usize, |acc, &x| acc + (x == Orientation::Forward) as usize);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "3b468641d3700e99d074204267531879721f4e3e7aded75928ea944850ea73e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b468641d3700e99d074204267531879721f4e3e7aded75928ea944850ea73e9", kill_on_drop: false }`
[INFO] [stdout] 3b468641d3700e99d074204267531879721f4e3e7aded75928ea944850ea73e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=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" "+1.91.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 980a1d99e11aa9ed81bb123ae24cfa0e3261d93e8cf40216dac417aa77468b85
[INFO] running `Command { std: "docker" "start" "-a" "980a1d99e11aa9ed81bb123ae24cfa0e3261d93e8cf40216dac417aa77468b85", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::io::BufReader`
[INFO] [stderr]    --> src/lib.rs:207:9
[INFO] [stderr]     |
[INFO] [stderr] 207 |     use std::io::BufReader;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `unitig_flipper` (lib test) generated 1 warning (run `cargo fix --lib -p unitig_flipper --tests` to apply 1 suggestion)
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]   --> src/main.rs:69:65
[INFO] [stderr]    |
[INFO] [stderr] 69 |     let n_forward = orientations.iter().fold(0_usize, |acc, &x| (acc + (x == Orientation::Forward) as usize));
[INFO] [stderr]    |                                                                 ^                                          ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 69 -     let n_forward = orientations.iter().fold(0_usize, |acc, &x| (acc + (x == Orientation::Forward) as usize));
[INFO] [stderr] 69 +     let n_forward = orientations.iter().fold(0_usize, |acc, &x| acc + (x == Orientation::Forward) as usize);
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `unitig_flipper` (bin "unitig_flipper" test) generated 1 warning (run `cargo fix --bin "unitig_flipper" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/unitig_flipper-e72c61cd16bc0f7c)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::straight_line ... ok
[INFO] [stdout] test tests::sanity_check_algorithms ... ok
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/unitig_flipper-8dd0dd088972f6af)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests unitig_flipper
[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] [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" "980a1d99e11aa9ed81bb123ae24cfa0e3261d93e8cf40216dac417aa77468b85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "980a1d99e11aa9ed81bb123ae24cfa0e3261d93e8cf40216dac417aa77468b85", kill_on_drop: false }`
[INFO] [stdout] 980a1d99e11aa9ed81bb123ae24cfa0e3261d93e8cf40216dac417aa77468b85