[INFO] fetching crate rustring_builder 0.2.0...
[INFO] testing rustring_builder-0.2.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate rustring_builder 0.2.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate rustring_builder 0.2.0
[INFO] finished tweaking crates.io crate rustring_builder 0.2.0
[INFO] tweaked toml for crates.io crate rustring_builder 0.2.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rustring_builder 0.2.0 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 rustring_builder 0.2.0 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 2b641c7a2ee6684ebc0501b7d0d4006fe41bccfcf6fd680d2223a645018417dd
[INFO] running `Command { std: "docker" "start" "-a" "2b641c7a2ee6684ebc0501b7d0d4006fe41bccfcf6fd680d2223a645018417dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b641c7a2ee6684ebc0501b7d0d4006fe41bccfcf6fd680d2223a645018417dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b641c7a2ee6684ebc0501b7d0d4006fe41bccfcf6fd680d2223a645018417dd", kill_on_drop: false }`
[INFO] [stdout] 2b641c7a2ee6684ebc0501b7d0d4006fe41bccfcf6fd680d2223a645018417dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 1c275bb47891ec3019462e1e93dfccd3d22c6fce7f908769fed91feb336384cd
[INFO] running `Command { std: "docker" "start" "-a" "1c275bb47891ec3019462e1e93dfccd3d22c6fce7f908769fed91feb336384cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustring_builder v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "1c275bb47891ec3019462e1e93dfccd3d22c6fce7f908769fed91feb336384cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c275bb47891ec3019462e1e93dfccd3d22c6fce7f908769fed91feb336384cd", kill_on_drop: false }`
[INFO] [stdout] 1c275bb47891ec3019462e1e93dfccd3d22c6fce7f908769fed91feb336384cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 49a5b3845fe5b7f5f0274fe5bb1f6337943a059661372a423418d65f98870639
[INFO] running `Command { std: "docker" "start" "-a" "49a5b3845fe5b7f5f0274fe5bb1f6337943a059661372a423418d65f98870639", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustring_builder v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `Command { std: "docker" "inspect" "49a5b3845fe5b7f5f0274fe5bb1f6337943a059661372a423418d65f98870639", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49a5b3845fe5b7f5f0274fe5bb1f6337943a059661372a423418d65f98870639", kill_on_drop: false }`
[INFO] [stdout] 49a5b3845fe5b7f5f0274fe5bb1f6337943a059661372a423418d65f98870639
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 7c97a01d9106ab94cea9950a40d64759805486b14f327f56f06dc3b1e74551cc
[INFO] running `Command { std: "docker" "start" "-a" "7c97a01d9106ab94cea9950a40d64759805486b14f327f56f06dc3b1e74551cc", 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/rustring_builder-98fb19205010438e)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test tests::test_compound_values ... ok
[INFO] [stdout] test tests::test_append_str ... ok
[INFO] [stdout] test tests::test_add_char ... ok
[INFO] [stdout] test tests::test_iteration ... ok
[INFO] [stdout] test tests::test_len ... ok
[INFO] [stdout] test tests::test_nth_value ... ok
[INFO] [stdout] test tests::test_setting ... ok
[INFO] [stdout] test tests::test_unicode_char ... ok
[INFO] [stdout] test tests::test_appending_other_values ... ok
[INFO] [stdout] test tests::test_cloning ... ok
[INFO] [stdout] test tests::test_two_builders ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/insert_at.rs (/opt/rustwide/target/debug/deps/insert_at-c46ea64a98c0f54f)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_insert_at_with_len ... ok
[INFO] [stdout] test test_insert_at ... 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]      Running tests/main_test.rs (/opt/rustwide/target/debug/deps/main_test-61677dac64135508)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test test_add_another_string_builder ... ok
[INFO] [stdout] test test_bad_ntn_access ... ok
[INFO] [stdout] test test_clone ... ok
[INFO] [stdout] test test_append_str ... ok
[INFO] [stdout] test test_create ... ok
[INFO] [stdout] test test_concatenation ... ok
[INFO] [stdout] test test_len ... ok
[INFO] [stdout] test test_ntn ... ok
[INFO] [stdout] test test_to_string ... ok
[INFO] [stdout] test test_n_elements ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/operators_test.rs (/opt/rustwide/target/debug/deps/operators_test-fb0c76f5d444d005)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_concat_two_string_builders_into_a_third ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/types_test.rs (/opt/rustwide/target/debug/deps/types_test-e181e2a7dadfd8d4)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_appending_different_types ... ok
[INFO] [stdout] test test_types ... 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 rustring_builder
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test src/lib.rs - StringBuilder (line 21) ... ok
[INFO] [stdout] test src/lib.rs - StringBuilder::insert_at (line 27) ... ok
[INFO] [stdout] test src/lib.rs - StringBuilder (line 56) ... ok
[INFO] [stdout] test src/lib.rs - StringBuilder::append (line 47) ... ok
[INFO] [stdout] test src/lib.rs - StringBuilder (line 77) ... ok
[INFO] [stdout] test src/lib.rs - StringBuilder (line 39) ... ok
[INFO] [stdout] test src/lib.rs - StringBuilder::insert_at_with_len (line 31) ... ok
[INFO] [stdout] test src/lib.rs - StringBuilder (line 6) ... ok
[INFO] [stdout] test src/lib.rs - StringBuilder (line 103) ... ok
[INFO] [stdout] test src/lib.rs - StringBuilder::replace_content_with (line 54) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.86s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7c97a01d9106ab94cea9950a40d64759805486b14f327f56f06dc3b1e74551cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c97a01d9106ab94cea9950a40d64759805486b14f327f56f06dc3b1e74551cc", kill_on_drop: false }`
[INFO] [stdout] 7c97a01d9106ab94cea9950a40d64759805486b14f327f56f06dc3b1e74551cc