[INFO] fetching crate red-black 0.1.0...
[INFO] testing red-black-0.1.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate red-black 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate red-black 0.1.0
[INFO] finished tweaking crates.io crate red-black 0.1.0
[INFO] tweaked toml for crates.io crate red-black 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate red-black 0.1.0 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "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-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 15 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.7.3 (available: v0.10.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8817c26f6b5be23dcae9b52d6be984dca6da00a0ca63c72edee9f3b8daa911a0
[INFO] running `Command { std: "docker" "start" "-a" "8817c26f6b5be23dcae9b52d6be984dca6da00a0ca63c72edee9f3b8daa911a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8817c26f6b5be23dcae9b52d6be984dca6da00a0ca63c72edee9f3b8daa911a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8817c26f6b5be23dcae9b52d6be984dca6da00a0ca63c72edee9f3b8daa911a0", kill_on_drop: false }`
[INFO] [stdout] 8817c26f6b5be23dcae9b52d6be984dca6da00a0ca63c72edee9f3b8daa911a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] abea90cb3432a4988311f56d95c790c74a8a8fc38492e35e566486469132fbe8
[INFO] running `Command { std: "docker" "start" "-a" "abea90cb3432a4988311f56d95c790c74a8a8fc38492e35e566486469132fbe8", kill_on_drop: false }`
[INFO] [stderr]    Compiling red-black v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "abea90cb3432a4988311f56d95c790c74a8a8fc38492e35e566486469132fbe8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abea90cb3432a4988311f56d95c790c74a8a8fc38492e35e566486469132fbe8", kill_on_drop: false }`
[INFO] [stdout] abea90cb3432a4988311f56d95c790c74a8a8fc38492e35e566486469132fbe8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a6c648e2e13ee8286baaf8dc5ebf2a66ce6d5e6aa38e646a75a2e36fad711dba
[INFO] running `Command { std: "docker" "start" "-a" "a6c648e2e13ee8286baaf8dc5ebf2a66ce6d5e6aa38e646a75a2e36fad711dba", kill_on_drop: false }`
[INFO] [stderr]    Compiling red-black v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/tests/validate.rs:30:24
[INFO] [stdout]    |
[INFO] [stdout] 30 |                 panic!(message)
[INFO] [stdout]    |                        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]    |
[INFO] [stdout] 30 |                 panic!("{}", message)
[INFO] [stdout]    |                        +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "a6c648e2e13ee8286baaf8dc5ebf2a66ce6d5e6aa38e646a75a2e36fad711dba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6c648e2e13ee8286baaf8dc5ebf2a66ce6d5e6aa38e646a75a2e36fad711dba", kill_on_drop: false }`
[INFO] [stdout] a6c648e2e13ee8286baaf8dc5ebf2a66ce6d5e6aa38e646a75a2e36fad711dba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 21a315c1a9bd6594be8029b2ba940a5a71213c026564bc59c18df28635a80919
[INFO] running `Command { std: "docker" "start" "-a" "21a315c1a9bd6594be8029b2ba940a5a71213c026564bc59c18df28635a80919", kill_on_drop: false }`
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> src/tests/validate.rs:30:24
[INFO] [stderr]    |
[INFO] [stderr] 30 |                 panic!(message)
[INFO] [stderr]    |                        ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]    = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]    |
[INFO] [stderr] 30 |                 panic!("{}", message)
[INFO] [stderr]    |                        +++++
[INFO] [stderr] 
[INFO] [stderr] warning: `red-black` (lib test) generated 1 warning (run `cargo fix --lib -p red-black --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/red_black-aa7795273b9ecddc)
[INFO] [stdout] 
[INFO] [stdout] running 30 tests
[INFO] [stdout] test tests::delete::test_delete_1 ... ok
[INFO] [stdout] test tests::delete::test_delete_10 ... ok
[INFO] [stdout] test tests::delete::test_delete_3 ... ok
[INFO] [stdout] test tests::delete::test_delete_2 ... ok
[INFO] [stdout] test tests::delete::test_delete_4 ... ok
[INFO] [stdout] test tests::delete::test_delete_5_left ... ok
[INFO] [stdout] test tests::delete::test_delete_5_right ... ok
[INFO] [stdout] test tests::delete::test_delete_9_right ... ok
[INFO] [stdout] test tests::delete::test_delete_6 ... ok
[INFO] [stdout] test tests::insert::test_insert_1 ... ok
[INFO] [stdout] test tests::delete::test_delete_7 ... ok
[INFO] [stdout] test tests::delete::test_delete_8_left ... ok
[INFO] [stdout] test tests::delete::test_delete_8_right ... ok
[INFO] [stdout] test tests::delete::test_delete_9_left ... ok
[INFO] [stdout] test tests::insert::test_insert_5 ... ok
[INFO] [stdout] test tests::insert::test_insert_6 ... ok
[INFO] [stdout] test tests::insert::test_insert_2 ... ok
[INFO] [stdout] test tests::insert::test_insert_3 ... ok
[INFO] [stdout] test tests::insert::test_insert_4 ... ok
[INFO] [stdout] test tests::insert::test_insert_7 ... ok
[INFO] [stdout] test tests::insert::test_insert_8 ... ok
[INFO] [stdout] test tests::delete::test_delete_11 ... ok
[INFO] [stdout] test tests::validate::tests::test_validate_1 - should panic ... ok
[INFO] [stdout] test tests::validate::tests::test_validate_5 - should panic ... ok
[INFO] [stdout] test tests::validate::tests::test_validate_3 - should panic ... ok
[INFO] [stdout] test tests::validate::tests::test_validate_4 - should panic ... ok
[INFO] [stdout] test tests::validate::tests::test_validate_2 - should panic ... ok
[INFO] [stdout] test tests::validate::tests::test_validate_7 - should panic ... ok
[INFO] [stdout] test tests::validate::tests::test_validate_6 - should panic ... ok
[INFO] [stdout] test tests::test_random_operation ... ok
[INFO] [stderr]    Doc-tests red_black
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 30 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.15s
[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" "21a315c1a9bd6594be8029b2ba940a5a71213c026564bc59c18df28635a80919", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21a315c1a9bd6594be8029b2ba940a5a71213c026564bc59c18df28635a80919", kill_on_drop: false }`
[INFO] [stdout] 21a315c1a9bd6594be8029b2ba940a5a71213c026564bc59c18df28635a80919
