[INFO] fetching crate fallible-iterator 0.3.0...
[INFO] testing fallible-iterator-0.3.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate fallible-iterator 0.3.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate fallible-iterator 0.3.0
[INFO] finished tweaking crates.io crate fallible-iterator 0.3.0
[INFO] tweaked toml for crates.io crate fallible-iterator 0.3.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fallible-iterator 0.3.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 817b11a96983290424e98ed2fd4ed89a0455005c5612b3cf09c4050b6af57608
[INFO] running `Command { std: "docker" "start" "-a" "817b11a96983290424e98ed2fd4ed89a0455005c5612b3cf09c4050b6af57608", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "817b11a96983290424e98ed2fd4ed89a0455005c5612b3cf09c4050b6af57608", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "817b11a96983290424e98ed2fd4ed89a0455005c5612b3cf09c4050b6af57608", kill_on_drop: false }`
[INFO] [stdout] 817b11a96983290424e98ed2fd4ed89a0455005c5612b3cf09c4050b6af57608
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 67110ba8c192a4cab60fa860606b798359035e13959070a87832f2fe0c6488b2
[INFO] running `Command { std: "docker" "start" "-a" "67110ba8c192a4cab60fa860606b798359035e13959070a87832f2fe0c6488b2", kill_on_drop: false }`
[INFO] [stderr]    Compiling fallible-iterator v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "67110ba8c192a4cab60fa860606b798359035e13959070a87832f2fe0c6488b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67110ba8c192a4cab60fa860606b798359035e13959070a87832f2fe0c6488b2", kill_on_drop: false }`
[INFO] [stdout] 67110ba8c192a4cab60fa860606b798359035e13959070a87832f2fe0c6488b2
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9bf665844530f0436bd840766a308776ba335ef9c184349742453ba3ec2c1b50
[INFO] running `Command { std: "docker" "start" "-a" "9bf665844530f0436bd840766a308776ba335ef9c184349742453ba3ec2c1b50", kill_on_drop: false }`
[INFO] [stderr]    Compiling fallible-iterator v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.34s
[INFO] running `Command { std: "docker" "inspect" "9bf665844530f0436bd840766a308776ba335ef9c184349742453ba3ec2c1b50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bf665844530f0436bd840766a308776ba335ef9c184349742453ba3ec2c1b50", kill_on_drop: false }`
[INFO] [stdout] 9bf665844530f0436bd840766a308776ba335ef9c184349742453ba3ec2c1b50
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] eb311ddb5295ad109aae7310912204497e877cb0d1a15689aacc6101b35d373d
[INFO] running `Command { std: "docker" "start" "-a" "eb311ddb5295ad109aae7310912204497e877cb0d1a15689aacc6101b35d373d", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/fallible_iterator-01c90e9908f7615d)
[INFO] [stdout] 
[INFO] [stdout] running 39 tests
[INFO] [stdout] test test::all ... ok
[INFO] [stdout] test test::any ... ok
[INFO] [stdout] test test::count ... ok
[INFO] [stdout] test test::cycle ... ok
[INFO] [stdout] test test::chain ... ok
[INFO] [stdout] test test::enumerate ... ok
[INFO] [stdout] test test::filter ... ok
[INFO] [stdout] test test::filter_map ... ok
[INFO] [stdout] test test::find ... ok
[INFO] [stdout] test test::find_map ... ok
[INFO] [stdout] test test::flat_map ... ok
[INFO] [stdout] test test::flatten ... ok
[INFO] [stdout] test test::fold ... ok
[INFO] [stdout] test test::for_each ... ok
[INFO] [stdout] test test::iterator ... ok
[INFO] [stdout] test test::last ... ok
[INFO] [stdout] test test::map ... ok
[INFO] [stdout] test test::map_err ... ok
[INFO] [stdout] test test::max_by ... ok
[INFO] [stdout] test test::max ... ok
[INFO] [stdout] test test::max_by_key ... ok
[INFO] [stdout] test test::min_by ... ok
[INFO] [stdout] test test::min ... ok
[INFO] [stdout] test test::inspect ... ok
[INFO] [stdout] test test::peekable ... ok
[INFO] [stdout] test test::position ... ok
[INFO] [stdout] test test::scan ... ok
[INFO] [stdout] test test::skip ... ok
[INFO] [stdout] test test::min_by_key ... ok
[INFO] [stdout] test test::skip_while ... ok
[INFO] [stdout] test test::unwrap ... ok
[INFO] [stdout] test test::step_by ... ok
[INFO] [stdout] test test::take ... ok
[INFO] [stdout] test test::take_while ... ok
[INFO] [stdout] test test::nth ... ok
[INFO] [stdout] test test::partition ... ok
[INFO] [stdout] test test::wrap_std_iter_into_fallible ... ok
[INFO] [stdout] test test::unzip ... ok
[INFO] [stderr]    Doc-tests fallible_iterator
[INFO] [stdout] test test::unwrap_panic - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 39 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - (line 10) ... ignored
[INFO] [stdout] test src/lib.rs - (line 22) ... ignored
[INFO] [stdout] test src/lib.rs - (line 40) ... ignored
[INFO] [stdout] test src/lib.rs - (line 58) ... ok
[INFO] [stdout] test src/lib.rs - from_fn (line 1839) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 3 ignored; 0 measured; 0 filtered out; finished in 0.47s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "eb311ddb5295ad109aae7310912204497e877cb0d1a15689aacc6101b35d373d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb311ddb5295ad109aae7310912204497e877cb0d1a15689aacc6101b35d373d", kill_on_drop: false }`
[INFO] [stdout] eb311ddb5295ad109aae7310912204497e877cb0d1a15689aacc6101b35d373d