[INFO] fetching crate permutations_iter 0.1.1...
[INFO] testing permutations_iter-0.1.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate permutations_iter 0.1.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate permutations_iter 0.1.1
[INFO] finished tweaking crates.io crate permutations_iter 0.1.1
[INFO] tweaked toml for crates.io crate permutations_iter 0.1.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate permutations_iter 0.1.1 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 3daa08ac2d2988e19600ecedb40ec0dda4dccc2189ca871105d99672223e0562
[INFO] running `Command { std: "docker" "start" "-a" "3daa08ac2d2988e19600ecedb40ec0dda4dccc2189ca871105d99672223e0562", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3daa08ac2d2988e19600ecedb40ec0dda4dccc2189ca871105d99672223e0562", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3daa08ac2d2988e19600ecedb40ec0dda4dccc2189ca871105d99672223e0562", kill_on_drop: false }`
[INFO] [stdout] 3daa08ac2d2988e19600ecedb40ec0dda4dccc2189ca871105d99672223e0562
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] b8e2ee66bbf24c551f4165397d2a43774c14ec3161dc3d230bf7c9fb684947d8
[INFO] running `Command { std: "docker" "start" "-a" "b8e2ee66bbf24c551f4165397d2a43774c14ec3161dc3d230bf7c9fb684947d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling permutations_iter v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "b8e2ee66bbf24c551f4165397d2a43774c14ec3161dc3d230bf7c9fb684947d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8e2ee66bbf24c551f4165397d2a43774c14ec3161dc3d230bf7c9fb684947d8", kill_on_drop: false }`
[INFO] [stdout] b8e2ee66bbf24c551f4165397d2a43774c14ec3161dc3d230bf7c9fb684947d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 4ad201b365da8808f22d47346e3a11d3be3d2fb7d276b5a2c2b1ffa873b4e234
[INFO] running `Command { std: "docker" "start" "-a" "4ad201b365da8808f22d47346e3a11d3be3d2fb7d276b5a2c2b1ffa873b4e234", kill_on_drop: false }`
[INFO] [stderr]    Compiling permutations_iter v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "4ad201b365da8808f22d47346e3a11d3be3d2fb7d276b5a2c2b1ffa873b4e234", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ad201b365da8808f22d47346e3a11d3be3d2fb7d276b5a2c2b1ffa873b4e234", kill_on_drop: false }`
[INFO] [stdout] 4ad201b365da8808f22d47346e3a11d3be3d2fb7d276b5a2c2b1ffa873b4e234
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] d4f724fa7f38dd024852d872f73b96702cc5f0178d6d35134b4fc7800b42f229
[INFO] running `Command { std: "docker" "start" "-a" "d4f724fa7f38dd024852d872f73b96702cc5f0178d6d35134b4fc7800b42f229", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests lib.rs (/opt/rustwide/target/debug/deps/permutations_iter-7ba31fbbe7f131c3)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::print_first_50_permutations_of_20 ... ok
[INFO] [stdout] test tests::print_permutations_of_4 ... ok
[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] [stderr]    Doc-tests permutations_iter
[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" "d4f724fa7f38dd024852d872f73b96702cc5f0178d6d35134b4fc7800b42f229", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4f724fa7f38dd024852d872f73b96702cc5f0178d6d35134b4fc7800b42f229", kill_on_drop: false }`
[INFO] [stdout] d4f724fa7f38dd024852d872f73b96702cc5f0178d6d35134b4fc7800b42f229