[INFO] cloning repository https://github.com/hsanpaz/abap-tokenizer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hsanpaz/abap-tokenizer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhsanpaz%2Fabap-tokenizer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhsanpaz%2Fabap-tokenizer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 90bf9af3441003e2f978c225f04c8ec2dc51b5e1
[INFO] testing hsanpaz/abap-tokenizer against try#bd7d74411512a3dd3b35d2f699c51dd2557c7e7e+cargoflags=-Zbuild-dir-new-layout for pr-149852-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhsanpaz%2Fabap-tokenizer" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/hsanpaz/abap-tokenizer
[INFO] finished tweaking git repo https://github.com/hsanpaz/abap-tokenizer
[INFO] tweaked toml for git repo https://github.com/hsanpaz/abap-tokenizer written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/hsanpaz/abap-tokenizer on toolchain bd7d74411512a3dd3b35d2f699c51dd2557c7e7e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/hsanpaz/abap-tokenizer 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" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] testing hsanpaz/abap-tokenizer against try#bd7d74411512a3dd3b35d2f699c51dd2557c7e7e+cargoflags=-Zbuild-dir-new-layout for pr-149852-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhsanpaz%2Fabap-tokenizer" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/hsanpaz/abap-tokenizer
[INFO] finished tweaking git repo https://github.com/hsanpaz/abap-tokenizer
[INFO] tweaked toml for git repo https://github.com/hsanpaz/abap-tokenizer written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/hsanpaz/abap-tokenizer on toolchain bd7d74411512a3dd3b35d2f699c51dd2557c7e7e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/hsanpaz/abap-tokenizer 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" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] testing hsanpaz/abap-tokenizer against try#bd7d74411512a3dd3b35d2f699c51dd2557c7e7e+cargoflags=-Zbuild-dir-new-layout for pr-149852-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhsanpaz%2Fabap-tokenizer" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/hsanpaz/abap-tokenizer
[INFO] finished tweaking git repo https://github.com/hsanpaz/abap-tokenizer
[INFO] tweaked toml for git repo https://github.com/hsanpaz/abap-tokenizer written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/hsanpaz/abap-tokenizer on toolchain bd7d74411512a3dd3b35d2f699c51dd2557c7e7e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/hsanpaz/abap-tokenizer 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" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clap v4.5.9
[INFO] [stderr]   Downloaded thiserror-impl v1.0.62
[INFO] [stderr]   Downloaded plotters-svg v0.3.6
[INFO] [stderr]   Downloaded thiserror v1.0.62
[INFO] [stderr]   Downloaded toml v0.8.14
[INFO] [stderr]   Downloaded clap_builder v4.5.9
[INFO] [stderr]   Downloaded toml_edit v0.22.15
[INFO] [stderr]   Downloaded syn v2.0.70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 35d3be27a792a0579d917622c97019f36bd2220998f17bb4ebc81b43803939c6
[INFO] running `Command { std: "docker" "start" "-a" "35d3be27a792a0579d917622c97019f36bd2220998f17bb4ebc81b43803939c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "35d3be27a792a0579d917622c97019f36bd2220998f17bb4ebc81b43803939c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35d3be27a792a0579d917622c97019f36bd2220998f17bb4ebc81b43803939c6", kill_on_drop: false }`
[INFO] [stdout] 35d3be27a792a0579d917622c97019f36bd2220998f17bb4ebc81b43803939c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "build" "--frozen" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] cf62a9704b8b23cfc04796139073841a321ab2e9f22ed6bd7ce1835770908bbd
[INFO] running `Command { std: "docker" "start" "-a" "cf62a9704b8b23cfc04796139073841a321ab2e9f22ed6bd7ce1835770908bbd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling serde v1.0.204
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.0
[INFO] [stderr]    Compiling anstyle v1.0.7
[INFO] [stderr]    Compiling anstyle-query v1.1.0
[INFO] [stderr]    Compiling colorchoice v1.0.1
[INFO] [stderr]    Compiling regex-syntax v0.8.4
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling clap_lex v0.7.1
[INFO] [stderr]    Compiling thiserror v1.0.62
[INFO] [stderr]    Compiling winnow v0.6.13
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling anstyle-parse v0.2.4
[INFO] [stderr]    Compiling log v0.4.22
[INFO] [stderr]    Compiling anstream v0.6.14
[INFO] [stderr]    Compiling clap_builder v4.5.9
[INFO] [stderr]    Compiling indexmap v2.2.6
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.70
[INFO] [stderr]    Compiling regex-automata v0.4.7
[INFO] [stderr]    Compiling serde_derive v1.0.204
[INFO] [stderr]    Compiling thiserror-impl v1.0.62
[INFO] [stderr]    Compiling clap_derive v4.5.8
[INFO] [stderr]    Compiling regex v1.10.5
[INFO] [stderr]    Compiling env_filter v0.1.0
[INFO] [stderr]    Compiling env_logger v0.11.3
[INFO] [stderr]    Compiling clap v4.5.9
[INFO] [stderr]    Compiling toml_datetime v0.6.6
[INFO] [stderr]    Compiling serde_spanned v0.6.6
[INFO] [stderr]    Compiling toml_edit v0.22.15
[INFO] [stderr]    Compiling toml v0.8.14
[INFO] [stderr]    Compiling abap-tokenizer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `RawSpecialRule` is never constructed
[INFO] [stdout]    --> src/config/tokenizer_config.rs:112:12
[INFO] [stdout]     |
[INFO] [stdout] 112 | pub struct RawSpecialRule {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 28.16s
[INFO] running `Command { std: "docker" "inspect" "cf62a9704b8b23cfc04796139073841a321ab2e9f22ed6bd7ce1835770908bbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf62a9704b8b23cfc04796139073841a321ab2e9f22ed6bd7ce1835770908bbd", kill_on_drop: false }`
[INFO] [stdout] cf62a9704b8b23cfc04796139073841a321ab2e9f22ed6bd7ce1835770908bbd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "test" "--frozen" "--no-run" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] 15e784e92d6cac2a91122ab4d78804799913e8bcd621fb45bc6ff1d41feb7a14
[INFO] running `Command { std: "docker" "start" "-a" "15e784e92d6cac2a91122ab4d78804799913e8bcd621fb45bc6ff1d41feb7a14", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.204
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]    Compiling serde_json v1.0.120
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling either v1.13.0
[INFO] [stderr]    Compiling half v2.4.1
[INFO] [stderr]    Compiling plotters-backend v0.3.6
[INFO] [stderr]    Compiling ryu v1.0.18
[INFO] [stderr]    Compiling ciborium-io v0.2.2
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling anes v0.1.6
[INFO] [stderr]    Compiling oorandom v11.1.4
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling plotters-svg v0.3.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling crossbeam-deque v0.8.5
[INFO] [stderr]    Compiling is-terminal v0.4.12
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling plotters v0.3.6
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling criterion-plot v0.5.0
[INFO] [stderr]    Compiling serde_spanned v0.6.6
[INFO] [stderr]    Compiling toml_datetime v0.6.6
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling toml_edit v0.22.15
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.5.1
[INFO] [stderr]    Compiling toml v0.8.14
[INFO] [stderr]    Compiling abap-tokenizer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `RawSpecialRule` is never constructed
[INFO] [stdout]    --> src/config/tokenizer_config.rs:112:12
[INFO] [stdout]     |
[INFO] [stdout] 112 | pub struct RawSpecialRule {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RawSpecialRule` is never constructed
[INFO] [stdout]    --> src/config/tokenizer_config.rs:112:12
[INFO] [stdout]     |
[INFO] [stdout] 112 | pub struct RawSpecialRule {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 17.97s
[INFO] running `Command { std: "docker" "inspect" "15e784e92d6cac2a91122ab4d78804799913e8bcd621fb45bc6ff1d41feb7a14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15e784e92d6cac2a91122ab4d78804799913e8bcd621fb45bc6ff1d41feb7a14", kill_on_drop: false }`
[INFO] [stdout] 15e784e92d6cac2a91122ab4d78804799913e8bcd621fb45bc6ff1d41feb7a14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "test" "--frozen" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] 4597935cf8c81cd63ee6f85df07eebb3237731938f81d765ade83240c8671586
[INFO] running `Command { std: "docker" "start" "-a" "4597935cf8c81cd63ee6f85df07eebb3237731938f81d765ade83240c8671586", kill_on_drop: false }`
[INFO] [stderr] warning: struct `RawSpecialRule` is never constructed
[INFO] [stderr]    --> src/config/tokenizer_config.rs:112:12
[INFO] [stderr]     |
[INFO] [stderr] 112 | pub struct RawSpecialRule {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `abap-tokenizer` (lib) generated 1 warning
[INFO] [stderr] warning: `abap-tokenizer` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/build/abap-tokenizer/894c28dd7e48830e/deps/abap_tokenizer-894c28dd7e48830e)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/build/abap-tokenizer/f0068a090a0d65e8/deps/abap_tokenizer-f0068a090a0d65e8)
[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 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 abap_tokenizer
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 20) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 20) stdout ----
[INFO] [stdout] error[E0425]: cannot find value `input` in this scope
[INFO] [stdout]   --> src/lib.rs:26:44
[INFO] [stdout]    |
[INFO] [stdout] 26 | let mut tokenizer = FlexibleTokenizer::new(input, config);
[INFO] [stdout]    |                                            ^^^^^ not found in this scope
[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:25:53
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_20_0() {
[INFO] [stdout]    |                                      ---------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 25 | let config = load_toml_config("path/to/config.toml")?;
[INFO] [stdout]    |                                                     ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_20_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |                                                                         +++++++++++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0425.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 20)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.15s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "4597935cf8c81cd63ee6f85df07eebb3237731938f81d765ade83240c8671586", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4597935cf8c81cd63ee6f85df07eebb3237731938f81d765ade83240c8671586", kill_on_drop: false }`
[INFO] [stdout] 4597935cf8c81cd63ee6f85df07eebb3237731938f81d765ade83240c8671586
