[INFO] fetching crate billboard 0.1.0... [INFO] testing billboard-0.1.0 against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409 [INFO] extracting crate billboard 0.1.0 into /workspace/builds/worker-4/source [INFO] validating manifest of crates.io crate billboard 0.1.0 on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", 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-4/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" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 3c2c7f59afc4cbb51173467222e5580e37375ef5b07bb2c12f153a64066903ae [INFO] running `Command { std: "docker" "start" "-a" "3c2c7f59afc4cbb51173467222e5580e37375ef5b07bb2c12f153a64066903ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3c2c7f59afc4cbb51173467222e5580e37375ef5b07bb2c12f153a64066903ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3c2c7f59afc4cbb51173467222e5580e37375ef5b07bb2c12f153a64066903ae", kill_on_drop: false }` [INFO] [stdout] 3c2c7f59afc4cbb51173467222e5580e37375ef5b07bb2c12f153a64066903ae [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5857e6ce1a3e5ff65ad84110b62683a99392d5e8dc4c8711e5ce03096cc79668 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "5857e6ce1a3e5ff65ad84110b62683a99392d5e8dc4c8711e5ce03096cc79668", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.67 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling syn v1.0.16 [INFO] [stderr] Compiling regex-syntax v0.6.16 [INFO] [stderr] Compiling unicode-width v0.1.7 [INFO] [stderr] Compiling thread_local v1.0.1 [INFO] [stderr] Compiling proc-macro2 v1.0.9 [INFO] [stderr] Compiling aho-corasick v0.7.9 [INFO] [stderr] Compiling quote v1.0.3 [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 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 30.49s [INFO] running `Command { std: "docker" "inspect" "5857e6ce1a3e5ff65ad84110b62683a99392d5e8dc4c8711e5ce03096cc79668", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5857e6ce1a3e5ff65ad84110b62683a99392d5e8dc4c8711e5ce03096cc79668", kill_on_drop: false }` [INFO] [stdout] 5857e6ce1a3e5ff65ad84110b62683a99392d5e8dc4c8711e5ce03096cc79668 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 03ea8d4853287b6ac7214272a7fceeea1312d947933cf8ff932c5e3e7f1a61fb [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "03ea8d4853287b6ac7214272a7fceeea1312d947933cf8ff932c5e3e7f1a61fb", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling version_check v0.9.1 [INFO] [stderr] Compiling matches v0.1.8 [INFO] [stderr] Compiling bitflags v1.2.1 [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 semver-parser v0.9.0 [INFO] [stderr] Compiling unicode-bidi v0.3.4 [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 34.91s [INFO] running `Command { std: "docker" "inspect" "03ea8d4853287b6ac7214272a7fceeea1312d947933cf8ff932c5e3e7f1a61fb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "03ea8d4853287b6ac7214272a7fceeea1312d947933cf8ff932c5e3e7f1a61fb", kill_on_drop: false }` [INFO] [stdout] 03ea8d4853287b6ac7214272a7fceeea1312d947933cf8ff932c5e3e7f1a61fb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] c643c1503dec3f50d9e0cd0c99e07b058a8369bdb0edd9e1102ea4be25cd13ea [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "c643c1503dec3f50d9e0cd0c99e07b058a8369bdb0edd9e1102ea4be25cd13ea", kill_on_drop: false }` [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.15s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/billboard-370ba64a0c885adc [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 [INFO] [stdout] [INFO] [stderr] Running /opt/rustwide/target/debug/deps/mod-3137b98ced8f9388 [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 [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::default (line 34) ... ok [INFO] [stdout] test src/lib.rs - Billboard::display (line 82) ... 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 `std::ops::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 `std::string::String` [INFO] [stdout] | [INFO] [stdout] = help: the trait `std::ops::Try` is not implemented for `std::string::String` [INFO] [stdout] = note: required by `std::ops::Try::into_result` [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 `std::ops::Try`) [INFO] [stdout] --> src/lib.rs:98:14 [INFO] [stdout] | [INFO] [stdout] 3 | / fn main() { [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 | | } [INFO] [stdout] | |_- this function should return `Result` or `Option` to accept `?` [INFO] [stdout] | [INFO] [stdout] = help: the trait `std::ops::Try` is not implemented for `()` [INFO] [stdout] = note: required by `std::ops::Try::from_error` [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 [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--doc' [INFO] running `Command { std: "docker" "inspect" "c643c1503dec3f50d9e0cd0c99e07b058a8369bdb0edd9e1102ea4be25cd13ea", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c643c1503dec3f50d9e0cd0c99e07b058a8369bdb0edd9e1102ea4be25cd13ea", kill_on_drop: false }` [INFO] [stdout] c643c1503dec3f50d9e0cd0c99e07b058a8369bdb0edd9e1102ea4be25cd13ea