[INFO] fetching crate stirling_approximation 0.1.0...
[INFO] testing stirling_approximation-0.1.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate stirling_approximation 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate stirling_approximation 0.1.0
[INFO] finished tweaking crates.io crate stirling_approximation 0.1.0
[INFO] tweaked toml for crates.io crate stirling_approximation 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate stirling_approximation 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 6 packages to latest compatible versions
[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-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a645901ffc5076af135d375e06618e89e71b7a38bbbf832be20449b0afebe7ed
[INFO] running `Command { std: "docker" "start" "-a" "a645901ffc5076af135d375e06618e89e71b7a38bbbf832be20449b0afebe7ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a645901ffc5076af135d375e06618e89e71b7a38bbbf832be20449b0afebe7ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a645901ffc5076af135d375e06618e89e71b7a38bbbf832be20449b0afebe7ed", kill_on_drop: false }`
[INFO] [stdout] a645901ffc5076af135d375e06618e89e71b7a38bbbf832be20449b0afebe7ed
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 32588af3921e43e5de23a0c1386e849ab9eb1fcdc10779696aeb2433084cf04f
[INFO] running `Command { std: "docker" "start" "-a" "32588af3921e43e5de23a0c1386e849ab9eb1fcdc10779696aeb2433084cf04f", kill_on_drop: false }`
[INFO] [stderr]    Compiling bigdecimal v0.4.10
[INFO] [stderr]    Compiling stirling_approximation v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.72s
[INFO] running `Command { std: "docker" "inspect" "32588af3921e43e5de23a0c1386e849ab9eb1fcdc10779696aeb2433084cf04f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32588af3921e43e5de23a0c1386e849ab9eb1fcdc10779696aeb2433084cf04f", kill_on_drop: false }`
[INFO] [stdout] 32588af3921e43e5de23a0c1386e849ab9eb1fcdc10779696aeb2433084cf04f
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 580c9395b21a9c92c8b914dc7d934f05bcc0a5ed49601116d5f4a77a82a5ca39
[INFO] running `Command { std: "docker" "start" "-a" "580c9395b21a9c92c8b914dc7d934f05bcc0a5ed49601116d5f4a77a82a5ca39", kill_on_drop: false }`
[INFO] [stderr]    Compiling stirling_approximation v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "580c9395b21a9c92c8b914dc7d934f05bcc0a5ed49601116d5f4a77a82a5ca39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "580c9395b21a9c92c8b914dc7d934f05bcc0a5ed49601116d5f4a77a82a5ca39", kill_on_drop: false }`
[INFO] [stdout] 580c9395b21a9c92c8b914dc7d934f05bcc0a5ed49601116d5f4a77a82a5ca39
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 26f88c5843d56e43a401380530e23b6225dc69dab538d8249526aa2a0f060dbd
[INFO] running `Command { std: "docker" "start" "-a" "26f88c5843d56e43a401380530e23b6225dc69dab538d8249526aa2a0f060dbd", 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/stirling_approximation-4795332e83271299)
[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] [stderr]    Doc-tests stirling_approximation
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 15) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 15) stdout ----
[INFO] [stdout] error[E0277]: `Option<bigdecimal::BigDecimal>` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> src/lib.rs:23:55
[INFO] [stdout]    |
[INFO] [stdout] 23 | println!("The high precision factorial of 10 is: {}", high_precision_factorial);
[INFO] [stdout]    |                                                  --   ^^^^^^^^^^^^^^^^^^^^^^^^ `Option<bigdecimal::BigDecimal>` cannot be formatted with the default formatter
[INFO] [stdout]    |                                                  |
[INFO] [stdout]    |                                                  required by this formatting parameter
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `std::fmt::Display` is not implemented for `Option<bigdecimal::BigDecimal>`
[INFO] [stdout]    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 15)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.14s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "26f88c5843d56e43a401380530e23b6225dc69dab538d8249526aa2a0f060dbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26f88c5843d56e43a401380530e23b6225dc69dab538d8249526aa2a0f060dbd", kill_on_drop: false }`
[INFO] [stdout] 26f88c5843d56e43a401380530e23b6225dc69dab538d8249526aa2a0f060dbd
