[INFO] fetching crate tprint 1.0.1... [INFO] testing tprint-1.0.1 against beta-2025-09-21 for beta-1.91-3 [INFO] extracting crate tprint 1.0.1 into /workspace/builds/worker-2-tc2/source [INFO] started tweaking crates.io crate tprint 1.0.1 [INFO] removed 0 missing examples [INFO] removed 0 missing tests [INFO] finished tweaking crates.io crate tprint 1.0.1 [INFO] tweaked toml for crates.io crate tprint 1.0.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate tprint 1.0.1 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] crate crates.io crate tprint 1.0.1 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-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] c24d6836b198e7acbfc64b3bd333b7a1fa40d12e9229e9ed0dab7bb0b597258e [INFO] running `Command { std: "docker" "start" "-a" "c24d6836b198e7acbfc64b3bd333b7a1fa40d12e9229e9ed0dab7bb0b597258e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c24d6836b198e7acbfc64b3bd333b7a1fa40d12e9229e9ed0dab7bb0b597258e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c24d6836b198e7acbfc64b3bd333b7a1fa40d12e9229e9ed0dab7bb0b597258e", kill_on_drop: false }` [INFO] [stdout] c24d6836b198e7acbfc64b3bd333b7a1fa40d12e9229e9ed0dab7bb0b597258e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 6702fff7cc3edb133dddfa3c7c2745789e0ac5f7000c3e2c45b38ba35140ffba [INFO] running `Command { std: "docker" "start" "-a" "6702fff7cc3edb133dddfa3c7c2745789e0ac5f7000c3e2c45b38ba35140ffba", kill_on_drop: false }` [INFO] [stderr] Compiling tprint v1.0.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.27s [INFO] running `Command { std: "docker" "inspect" "6702fff7cc3edb133dddfa3c7c2745789e0ac5f7000c3e2c45b38ba35140ffba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6702fff7cc3edb133dddfa3c7c2745789e0ac5f7000c3e2c45b38ba35140ffba", kill_on_drop: false }` [INFO] [stdout] 6702fff7cc3edb133dddfa3c7c2745789e0ac5f7000c3e2c45b38ba35140ffba [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 955beec8e9e363a38f2079fd2d82ed19383e053beae13591c6114a4a593f71ac [INFO] running `Command { std: "docker" "start" "-a" "955beec8e9e363a38f2079fd2d82ed19383e053beae13591c6114a4a593f71ac", kill_on_drop: false }` [INFO] [stderr] Compiling tprint v1.0.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.84s [INFO] running `Command { std: "docker" "inspect" "955beec8e9e363a38f2079fd2d82ed19383e053beae13591c6114a4a593f71ac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "955beec8e9e363a38f2079fd2d82ed19383e053beae13591c6114a4a593f71ac", kill_on_drop: false }` [INFO] [stdout] 955beec8e9e363a38f2079fd2d82ed19383e053beae13591c6114a4a593f71ac [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 2ec38b1fc5e5f32cc2f80b4eb1000a2e86f6c6e575854b3313d30b2c1495ff56 [INFO] running `Command { std: "docker" "start" "-a" "2ec38b1fc5e5f32cc2f80b4eb1000a2e86f6c6e575854b3313d30b2c1495ff56", kill_on_drop: false }` [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tprint-86ed2b9153292436) [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] Running tests/basic_test.rs (/opt/rustwide/target/debug/deps/basic_test-f9c9086c89135d13) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test str_output ... 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] Doc-tests tprint [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test src/tprint.rs - tprint::TPrint::add_data (line 93) ... FAILED [INFO] [stdout] test src/tprint.rs - tprint::TPrint::add_data (line 104) ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/tprint.rs - tprint::TPrint::add_data (line 93) stdout ---- [INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`) [INFO] [stdout] --> src/tprint.rs:101:11 [INFO] [stdout] | [INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_tprint_rs_93_0() { [INFO] [stdout] | ------------------------------------- this function should return `Result` or `Option` to accept `?` [INFO] [stdout] ... [INFO] [stdout] 11 | tp.print()?; [INFO] [stdout] | ^ cannot use the `?` operator in a function that returns `()` [INFO] [stdout] | [INFO] [stdout] help: consider adding return type [INFO] [stdout] | [INFO] [stdout] 4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_tprint_rs_93_0() -> Result<(), Box> { [INFO] [stdout] 5 | use tprint::{TPrint, TPrintAlign}; [INFO] [stdout] ... [INFO] [stdout] 11 | tp.print()?; [INFO] [stdout] 12 + Ok(()) [INFO] [stdout] | [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] ---- src/tprint.rs - tprint::TPrint::add_data (line 104) stdout ---- [INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`) [INFO] [stdout] --> src/tprint.rs:111:12 [INFO] [stdout] | [INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_tprint_rs_104_0() { [INFO] [stdout] | -------------------------------------- this function should return `Result` or `Option` to accept `?` [INFO] [stdout] ... [INFO] [stdout] 10 | print()?; [INFO] [stdout] | ^ cannot use the `?` operator in a function that returns `()` [INFO] [stdout] | [INFO] [stdout] help: consider adding return type [INFO] [stdout] | [INFO] [stdout] 4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_tprint_rs_104_0() -> Result<(), Box> { [INFO] [stdout] 5 | use tprint::{TPrint, TPrintAlign}; [INFO] [stdout] ... [INFO] [stdout] 10 | print()?; [INFO] [stdout] 11 + Ok(()) [INFO] [stdout] | [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/tprint.rs - tprint::TPrint::add_data (line 104) [INFO] [stdout] src/tprint.rs - tprint::TPrint::add_data (line 93) [INFO] [stdout] [INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.13s [INFO] [stdout] [INFO] [stderr] error: doctest failed, to rerun pass `--doc` [INFO] running `Command { std: "docker" "inspect" "2ec38b1fc5e5f32cc2f80b4eb1000a2e86f6c6e575854b3313d30b2c1495ff56", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2ec38b1fc5e5f32cc2f80b4eb1000a2e86f6c6e575854b3313d30b2c1495ff56", kill_on_drop: false }` [INFO] [stdout] 2ec38b1fc5e5f32cc2f80b4eb1000a2e86f6c6e575854b3313d30b2c1495ff56