[INFO] fetching crate billboard 0.1.0... [INFO] testing billboard-0.1.0 against beta-2022-04-10 for beta-1.61-1 [INFO] extracting crate billboard 0.1.0 into /workspace/builds/worker-12/source [INFO] validating manifest of crates.io crate billboard 0.1.0 on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate billboard 0.1.0 [INFO] removed 0 missing examples [INFO] finished tweaking crates.io crate billboard 0.1.0 [INFO] tweaked toml for crates.io crate billboard 0.1.0 written to /workspace/builds/worker-12/source/Cargo.toml [INFO] crate crates.io crate billboard 0.1.0 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7b82adcaa7f083a9023d4eed1af87576670587ed15857b430168525dd455d809 [INFO] running `Command { std: "docker" "start" "-a" "7b82adcaa7f083a9023d4eed1af87576670587ed15857b430168525dd455d809", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7b82adcaa7f083a9023d4eed1af87576670587ed15857b430168525dd455d809", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7b82adcaa7f083a9023d4eed1af87576670587ed15857b430168525dd455d809", kill_on_drop: false }` [INFO] [stdout] 7b82adcaa7f083a9023d4eed1af87576670587ed15857b430168525dd455d809 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7d9a745e61294d31e19a9940d1fcc8a252f79ca42a889ec1b262d7d7dfcad4b0 [INFO] running `Command { std: "docker" "start" "-a" "7d9a745e61294d31e19a9940d1fcc8a252f79ca42a889ec1b262d7d7dfcad4b0", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling proc-macro2 v1.0.9 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling syn v1.0.16 [INFO] [stderr] Compiling regex-syntax v0.6.16 [INFO] [stderr] Compiling thread_local v1.0.1 [INFO] [stderr] Compiling termios v0.3.1 [INFO] [stderr] Compiling clicolors-control v1.0.1 [INFO] [stderr] Compiling term_size v0.3.1 [INFO] [stderr] Compiling aho-corasick v0.7.9 [INFO] [stderr] Compiling quote v1.0.3 [INFO] [stderr] Compiling regex v1.3.4 [INFO] [stderr] Compiling console v0.9.2 [INFO] [stderr] Compiling thiserror-impl v1.0.11 [INFO] [stderr] Compiling thiserror v1.0.11 [INFO] [stderr] Compiling billboard v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 6.28s [INFO] running `Command { std: "docker" "inspect" "7d9a745e61294d31e19a9940d1fcc8a252f79ca42a889ec1b262d7d7dfcad4b0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7d9a745e61294d31e19a9940d1fcc8a252f79ca42a889ec1b262d7d7dfcad4b0", kill_on_drop: false }` [INFO] [stdout] 7d9a745e61294d31e19a9940d1fcc8a252f79ca42a889ec1b262d7d7dfcad4b0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b396b6ec5bc7fcf7ab4e4817d3f70a4814c709dafe92a6e47f1a017024c55f30 [INFO] running `Command { std: "docker" "start" "-a" "b396b6ec5bc7fcf7ab4e4817d3f70a4814c709dafe92a6e47f1a017024c55f30", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling version_check v0.9.1 [INFO] [stderr] Compiling smallvec v1.2.0 [INFO] [stderr] Compiling matches v0.1.8 [INFO] [stderr] Compiling serde v1.0.104 [INFO] [stderr] Compiling pulldown-cmark v0.4.1 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling either v1.5.3 [INFO] [stderr] Compiling semver-parser v0.9.0 [INFO] [stderr] Compiling unicode-bidi v0.3.4 [INFO] [stderr] Compiling itertools v0.8.2 [INFO] [stderr] Compiling unicode-normalization v0.1.12 [INFO] [stderr] Compiling unicase v2.6.0 [INFO] [stderr] Compiling idna v0.1.5 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling url v1.7.2 [INFO] [stderr] Compiling toml v0.5.6 [INFO] [stderr] Compiling version-sync v0.8.1 [INFO] [stderr] Compiling billboard v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 10.86s [INFO] [stderr] Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/billboard-1a17eab4f1943741) [INFO] [stderr] Executable tests/mod.rs (/opt/rustwide/target/debug/deps/mod-14af8707dfc67845) [INFO] running `Command { std: "docker" "inspect" "b396b6ec5bc7fcf7ab4e4817d3f70a4814c709dafe92a6e47f1a017024c55f30", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b396b6ec5bc7fcf7ab4e4817d3f70a4814c709dafe92a6e47f1a017024c55f30", kill_on_drop: false }` [INFO] [stdout] b396b6ec5bc7fcf7ab4e4817d3f70a4814c709dafe92a6e47f1a017024c55f30 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 19a68abe9e60767b92f41b0b182367af857e172ba78c6d6f3e2b436b4c111b3f [INFO] running `Command { std: "docker" "start" "-a" "19a68abe9e60767b92f41b0b182367af857e172ba78c6d6f3e2b436b4c111b3f", kill_on_drop: false }` [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.12s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/billboard-1a17eab4f1943741) [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/mod.rs (/opt/rustwide/target/debug/deps/mod-14af8707dfc67845) [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test test_readme_deps ... ok [INFO] [stdout] test test_html_root_url ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] [stderr] Doc-tests billboard [INFO] [stdout] [INFO] [stdout] running 5 tests [INFO] [stdout] test src/lib.rs - Billboard::as_str (line 95) ... FAILED [INFO] [stdout] test src/lib.rs - Billboard::new (line 47) ... ok [INFO] [stdout] test src/lib.rs - Billboard::builder (line 61) ... ok [INFO] [stdout] test src/lib.rs - Billboard::display (line 82) ... ok [INFO] [stdout] test src/lib.rs - Billboard::default (line 34) ... ok [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/lib.rs - Billboard::as_str (line 95) stdout ---- [INFO] [stdout] error[E0277]: the `?` operator can only be applied to values that implement `Try` [INFO] [stdout] --> src/lib.rs:98:14 [INFO] [stdout] | [INFO] [stdout] 6 | let result = Billboard::default().as_str("Hello, World!")?; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the `?` operator cannot be applied to type `String` [INFO] [stdout] | [INFO] [stdout] = help: the trait `Try` is not implemented for `String` [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:98:58 [INFO] [stdout] | [INFO] [stdout] 3 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_95_0() { [INFO] [stdout] | ______________________________________- [INFO] [stdout] 4 | | use billboard::Billboard; [INFO] [stdout] 5 | | [INFO] [stdout] 6 | | let result = Billboard::default().as_str("Hello, World!")?; [INFO] [stdout] | | ^ cannot use the `?` operator in a function that returns `()` [INFO] [stdout] 7 | | println!("{}", result); [INFO] [stdout] 8 | | } _doctest_main_src_lib_rs_95_0() } [INFO] [stdout] | |_- this function should return `Result` or `Option` to accept `?` [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromResidual<_>` is not implemented for `()` [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 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] [INFO] [stdout] failures: [INFO] [stdout] src/lib.rs - Billboard::as_str (line 95) [INFO] [stdout] [INFO] [stdout] test result: FAILED. 4 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.52s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--doc' [INFO] running `Command { std: "docker" "inspect" "19a68abe9e60767b92f41b0b182367af857e172ba78c6d6f3e2b436b4c111b3f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "19a68abe9e60767b92f41b0b182367af857e172ba78c6d6f3e2b436b4c111b3f", kill_on_drop: false }` [INFO] [stdout] 19a68abe9e60767b92f41b0b182367af857e172ba78c6d6f3e2b436b4c111b3f