[INFO] fetching crate stirling_approximation 0.1.0... [INFO] testing stirling_approximation-0.1.0 against 1.90.0 for beta-1.91-3 [INFO] extracting crate stirling_approximation 0.1.0 into /workspace/builds/worker-2-tc1/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-2-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate stirling_approximation 0.1.0 on toolchain 1.90.0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6763fe4547bb2f367fe61c00d0087561e0c351ddf51082f0e11189325fad64f8 [INFO] running `Command { std: "docker" "start" "-a" "6763fe4547bb2f367fe61c00d0087561e0c351ddf51082f0e11189325fad64f8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6763fe4547bb2f367fe61c00d0087561e0c351ddf51082f0e11189325fad64f8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6763fe4547bb2f367fe61c00d0087561e0c351ddf51082f0e11189325fad64f8", kill_on_drop: false }` [INFO] [stdout] 6763fe4547bb2f367fe61c00d0087561e0c351ddf51082f0e11189325fad64f8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b74e79cdebef1800750507d520b5dfe239ee9e8f04539c03a8848962b6489292 [INFO] running `Command { std: "docker" "start" "-a" "b74e79cdebef1800750507d520b5dfe239ee9e8f04539c03a8848962b6489292", kill_on_drop: false }` [INFO] [stderr] Compiling bigdecimal v0.4.8 [INFO] [stderr] Compiling stirling_approximation v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.07s [INFO] running `Command { std: "docker" "inspect" "b74e79cdebef1800750507d520b5dfe239ee9e8f04539c03a8848962b6489292", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b74e79cdebef1800750507d520b5dfe239ee9e8f04539c03a8848962b6489292", kill_on_drop: false }` [INFO] [stdout] b74e79cdebef1800750507d520b5dfe239ee9e8f04539c03a8848962b6489292 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] eed1786d4ae1fd15ee159ce1948f5d6c1107479622b6aa3e180bc9036b5a9bb7 [INFO] running `Command { std: "docker" "start" "-a" "eed1786d4ae1fd15ee159ce1948f5d6c1107479622b6aa3e180bc9036b5a9bb7", 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 0.24s [INFO] running `Command { std: "docker" "inspect" "eed1786d4ae1fd15ee159ce1948f5d6c1107479622b6aa3e180bc9036b5a9bb7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "eed1786d4ae1fd15ee159ce1948f5d6c1107479622b6aa3e180bc9036b5a9bb7", kill_on_drop: false }` [INFO] [stdout] eed1786d4ae1fd15ee159ce1948f5d6c1107479622b6aa3e180bc9036b5a9bb7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "+1.90.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 85eafae8df2479eaccf88a7ff7cf57cfc40f718b383efb658fb19a2a0d683ee8 [INFO] running `Command { std: "docker" "start" "-a" "85eafae8df2479eaccf88a7ff7cf57cfc40f718b383efb658fb19a2a0d683ee8", kill_on_drop: false }` [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/stirling_approximation-93f2e629da022001) [INFO] [stderr] Doc-tests stirling_approximation [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] [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` doesn't implement `std::fmt::Display` [INFO] [stdout] --> src/lib.rs:23:55 [INFO] [stdout] | [INFO] [stdout] 11 | println!("The high precision factorial of 10 is: {}", high_precision_factorial); [INFO] [stdout] | -- ^^^^^^^^^^^^^^^^^^^^^^^^ `Option` 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` [INFO] [stdout] = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead [INFO] [stdout] = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info) [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 0.16s [INFO] [stdout] [INFO] [stderr] error: doctest failed, to rerun pass `--doc` [INFO] running `Command { std: "docker" "inspect" "85eafae8df2479eaccf88a7ff7cf57cfc40f718b383efb658fb19a2a0d683ee8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "85eafae8df2479eaccf88a7ff7cf57cfc40f718b383efb658fb19a2a0d683ee8", kill_on_drop: false }` [INFO] [stdout] 85eafae8df2479eaccf88a7ff7cf57cfc40f718b383efb658fb19a2a0d683ee8