[INFO] fetching crate sap 0.2.0...
[INFO] testing sap-0.2.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate sap 0.2.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate sap 0.2.0
[INFO] finished tweaking crates.io crate sap 0.2.0
[INFO] tweaked toml for crates.io crate sap 0.2.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sap 0.2.0 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] crate crates.io crate sap 0.2.0 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-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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 772f4950e4add727d52f3b733e1eaa473a5a6457f0fb9e43b3931ffef016859d
[INFO] running `Command { std: "docker" "start" "-a" "772f4950e4add727d52f3b733e1eaa473a5a6457f0fb9e43b3931ffef016859d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "772f4950e4add727d52f3b733e1eaa473a5a6457f0fb9e43b3931ffef016859d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "772f4950e4add727d52f3b733e1eaa473a5a6457f0fb9e43b3931ffef016859d", kill_on_drop: false }`
[INFO] [stdout] 772f4950e4add727d52f3b733e1eaa473a5a6457f0fb9e43b3931ffef016859d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 86f4d52e531a5f103e7d75a2afec9d9a5663716e7350557c1c8268c48f92aef2
[INFO] running `Command { std: "docker" "start" "-a" "86f4d52e531a5f103e7d75a2afec9d9a5663716e7350557c1c8268c48f92aef2", kill_on_drop: false }`
[INFO] [stderr]    Compiling sap v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "86f4d52e531a5f103e7d75a2afec9d9a5663716e7350557c1c8268c48f92aef2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86f4d52e531a5f103e7d75a2afec9d9a5663716e7350557c1c8268c48f92aef2", kill_on_drop: false }`
[INFO] [stdout] 86f4d52e531a5f103e7d75a2afec9d9a5663716e7350557c1c8268c48f92aef2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 82cdf17ed906870eaa9fe2bacadc65e9987d7ab5ea089bc45fc34e1055698ec1
[INFO] running `Command { std: "docker" "start" "-a" "82cdf17ed906870eaa9fe2bacadc65e9987d7ab5ea089bc45fc34e1055698ec1", kill_on_drop: false }`
[INFO] [stderr]    Compiling sap v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "82cdf17ed906870eaa9fe2bacadc65e9987d7ab5ea089bc45fc34e1055698ec1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82cdf17ed906870eaa9fe2bacadc65e9987d7ab5ea089bc45fc34e1055698ec1", kill_on_drop: false }`
[INFO] [stdout] 82cdf17ed906870eaa9fe2bacadc65e9987d7ab5ea089bc45fc34e1055698ec1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 5483171f180ec3e0911a5fb366077baf661d7cc24053670a027ead784dd2ff01
[INFO] running `Command { std: "docker" "start" "-a" "5483171f180ec3e0911a5fb366077baf661d7cc24053670a027ead784dd2ff01", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/sap-80993ed5be20207f)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests sap
[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 16 tests
[INFO] [stdout] test src/lib.rs - Result (line 73) ... ok
[INFO] [stdout] test src/lib.rs - Parser<I>::value (line 564) ... FAILED
[INFO] [stdout] test src/lib.rs - Parser<I>::forward (line 447) ... FAILED
[INFO] [stdout] test src/lib.rs - Parser<I>::has_leftover_value (line 699) ... FAILED
[INFO] [stdout] test src/lib.rs - Parser<env::Args>::from_env (line 248) ... ok
[INFO] [stdout] test src/lib.rs - Parser<I>::name (line 657) ... ok
[INFO] [stdout] test src/lib.rs - Parser<I>::ignore_value (line 638) ... ok
[INFO] [stdout] test src/lib.rs - Argument<'_>::unexpected (line 135) ... ok
[INFO] [stdout] test src/lib.rs - Parser<I>::from_arbitrary (line 387) ... ok
[INFO] [stdout] test src/lib.rs - Parser (line 191) ... ok
[INFO] [stdout] test src/lib.rs - Argument (line 90) ... ok
[INFO] [stdout] test src/lib.rs - (line 27) ... ok
[INFO] [stdout] test src/lib.rs - Parser<I>::into_inner (line 733) ... ok
[INFO] [stdout] test src/lib.rs - Parser<I>::is_poisoned (line 674) ... ok
[INFO] [stdout] test src/lib.rs - ParsingError::Unexpected (line 816) ... ok
[INFO] [stdout] test src/lib.rs - Parser<I>::into_inner (line 746) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - Parser<I>::value (line 564) 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/lib.rs:572:26
[INFO] [stdout]     |
[INFO] [stdout] 565 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_564_0() {
[INFO] [stdout]     |                                      ----------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 572 | assert_eq!(parser.value()?, Some("input.txt".to_string()));
[INFO] [stdout]     |                          ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]     |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]     |
[INFO] [stdout] 565 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_564_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 566 | use sap::{Parser, Argument};
[INFO] [stdout] ...
[INFO] [stdout] 589 | assert_eq!(parser.value()?, Some("myfile.txt".to_string()));
[INFO] [stdout] 590 +     Ok(())
[INFO] [stdout]     |
[INFO] [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/lib.rs:573:26
[INFO] [stdout]     |
[INFO] [stdout] 565 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_564_0() {
[INFO] [stdout]     |                                      ----------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 573 | assert_eq!(parser.value()?, None); // Already consumed
[INFO] [stdout]     |                          ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]     |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]     |
[INFO] [stdout] 565 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_564_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 566 | use sap::{Parser, Argument};
[INFO] [stdout] ...
[INFO] [stdout] 589 | assert_eq!(parser.value()?, Some("myfile.txt".to_string()));
[INFO] [stdout] 590 +     Ok(())
[INFO] [stdout]     |
[INFO] [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/lib.rs:577:26
[INFO] [stdout]     |
[INFO] [stdout] 565 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_564_0() {
[INFO] [stdout]     |                                      ----------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 577 | assert_eq!(parser.value()?, None);
[INFO] [stdout]     |                          ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]     |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]     |
[INFO] [stdout] 565 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_564_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 566 | use sap::{Parser, Argument};
[INFO] [stdout] ...
[INFO] [stdout] 589 | assert_eq!(parser.value()?, Some("myfile.txt".to_string()));
[INFO] [stdout] 590 +     Ok(())
[INFO] [stdout]     |
[INFO] [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/lib.rs:583:26
[INFO] [stdout]     |
[INFO] [stdout] 565 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_564_0() {
[INFO] [stdout]     |                                      ----------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 583 | assert_eq!(parser.value()?, Some("myfile.txt".to_string()));
[INFO] [stdout]     |                          ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]     |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]     |
[INFO] [stdout] 565 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_564_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 566 | use sap::{Parser, Argument};
[INFO] [stdout] ...
[INFO] [stdout] 589 | assert_eq!(parser.value()?, Some("myfile.txt".to_string()));
[INFO] [stdout] 590 +     Ok(())
[INFO] [stdout]     |
[INFO] [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/lib.rs:589:26
[INFO] [stdout]     |
[INFO] [stdout] 565 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_564_0() {
[INFO] [stdout]     |                                      ----------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 589 | assert_eq!(parser.value()?, Some("myfile.txt".to_string()));
[INFO] [stdout]     |                          ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]     |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]     |
[INFO] [stdout] 565 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_564_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 566 | use sap::{Parser, Argument};
[INFO] [stdout] ...
[INFO] [stdout] 589 | assert_eq!(parser.value()?, Some("myfile.txt".to_string()));
[INFO] [stdout] 590 +     Ok(())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - Parser<I>::forward (line 447) 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/lib.rs:460:26
[INFO] [stdout]     |
[INFO] [stdout] 448 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_447_0() {
[INFO] [stdout]     |                                      ----------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 460 | assert_eq!(parser.value()?, Some("test.txt".to_string()));
[INFO] [stdout]     |                          ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]     |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]     |
[INFO] [stdout] 448 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_447_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 449 | use sap::{Parser, Argument};
[INFO] [stdout] ...
[INFO] [stdout] 462 | assert_eq!(parser.forward().unwrap(), None);
[INFO] [stdout] 463 +     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/lib.rs - Parser<I>::has_leftover_value (line 699) 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/lib.rs:714:15
[INFO] [stdout]     |
[INFO] [stdout] 700 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_699_0() {
[INFO] [stdout]     |                                      ----------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 714 | parser.value()?;
[INFO] [stdout]     |               ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]     |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]     |
[INFO] [stdout] 700 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_699_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 701 | use sap::{Parser, Argument};
[INFO] [stdout] ...
[INFO] [stdout] 715 | assert!(!parser.has_leftover_value());
[INFO] [stdout] 716 +     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/lib.rs - Parser<I>::forward (line 447)
[INFO] [stdout]     src/lib.rs - Parser<I>::has_leftover_value (line 699)
[INFO] [stdout]     src/lib.rs - Parser<I>::value (line 564)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 13 passed; 3 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.94s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 1.12s; merged doctests compilation took 0.18s
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "5483171f180ec3e0911a5fb366077baf661d7cc24053670a027ead784dd2ff01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5483171f180ec3e0911a5fb366077baf661d7cc24053670a027ead784dd2ff01", kill_on_drop: false }`
[INFO] [stdout] 5483171f180ec3e0911a5fb366077baf661d7cc24053670a027ead784dd2ff01
