[INFO] fetching crate tprint 1.0.1... [INFO] testing tprint-1.0.1 against beta-2025-10-28 for beta-1.92-2 [INFO] extracting crate tprint 1.0.1 into /workspace/builds/worker-6-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-6-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate tprint 1.0.1 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 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-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 6cc9d007767223b57de306b317d4df81fccb542930f2870e8bceccb7674a3942 [INFO] running `Command { std: "docker" "start" "-a" "6cc9d007767223b57de306b317d4df81fccb542930f2870e8bceccb7674a3942", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6cc9d007767223b57de306b317d4df81fccb542930f2870e8bceccb7674a3942", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6cc9d007767223b57de306b317d4df81fccb542930f2870e8bceccb7674a3942", kill_on_drop: false }` [INFO] [stdout] 6cc9d007767223b57de306b317d4df81fccb542930f2870e8bceccb7674a3942 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 9231c43bfe389f6989b7e06e10401ba7c168efdd6bcf4445af45cd9e2869058e [INFO] running `Command { std: "docker" "start" "-a" "9231c43bfe389f6989b7e06e10401ba7c168efdd6bcf4445af45cd9e2869058e", kill_on_drop: false }` [INFO] [stderr] Compiling unicode-width v0.2.0 [INFO] [stderr] Compiling tprint v1.0.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.87s [INFO] running `Command { std: "docker" "inspect" "9231c43bfe389f6989b7e06e10401ba7c168efdd6bcf4445af45cd9e2869058e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9231c43bfe389f6989b7e06e10401ba7c168efdd6bcf4445af45cd9e2869058e", kill_on_drop: false }` [INFO] [stdout] 9231c43bfe389f6989b7e06e10401ba7c168efdd6bcf4445af45cd9e2869058e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] de23e17abdf5e571b52b2b788b5bd5715215ff29c1596f4feb701079617eef88 [INFO] running `Command { std: "docker" "start" "-a" "de23e17abdf5e571b52b2b788b5bd5715215ff29c1596f4feb701079617eef88", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling iana-time-zone v0.1.61 [INFO] [stderr] Compiling chrono v0.4.39 [INFO] [stderr] Compiling tprint v1.0.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 4.04s [INFO] running `Command { std: "docker" "inspect" "de23e17abdf5e571b52b2b788b5bd5715215ff29c1596f4feb701079617eef88", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "de23e17abdf5e571b52b2b788b5bd5715215ff29c1596f4feb701079617eef88", kill_on_drop: false }` [INFO] [stdout] de23e17abdf5e571b52b2b788b5bd5715215ff29c1596f4feb701079617eef88 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] be18ca8be368255269310cc2e5b097d21612f9457d7a03c0463d84e9ee449b49 [INFO] running `Command { std: "docker" "start" "-a" "be18ca8be368255269310cc2e5b097d21612f9457d7a03c0463d84e9ee449b49", 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] [stderr] Running tests/basic_test.rs (/opt/rustwide/target/debug/deps/basic_test-f9c9086c89135d13) [INFO] [stdout] running 0 tests [INFO] [stderr] Doc-tests tprint [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 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] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test src/tprint.rs - tprint::TPrint::add_data (line 104) ... FAILED [INFO] [stdout] test src/tprint.rs - tprint::TPrint::add_data (line 93) ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [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] ---- 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] [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 0.19s [INFO] [stdout] [INFO] [stderr] error: doctest failed, to rerun pass `--doc` [INFO] running `Command { std: "docker" "inspect" "be18ca8be368255269310cc2e5b097d21612f9457d7a03c0463d84e9ee449b49", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "be18ca8be368255269310cc2e5b097d21612f9457d7a03c0463d84e9ee449b49", kill_on_drop: false }` [INFO] [stdout] be18ca8be368255269310cc2e5b097d21612f9457d7a03c0463d84e9ee449b49