[INFO] crate billboard 0.1.0 is already in cache [INFO] testing billboard-0.1.0 against 1.44.0 for beta-1.45-1 [INFO] extracting crate billboard 0.1.0 into /workspace/builds/worker-0/source [INFO] validating manifest of crates.io crate billboard 0.1.0 on toolchain 1.44.0 [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"` [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-0/source/Cargo.toml [INFO] crate crates.io crate billboard 0.1.0 already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] adf82f738d2e417097bf5ff18fa72e042428f735a706befa2f38242b916bbc39 [INFO] running `"docker" "start" "-a" "adf82f738d2e417097bf5ff18fa72e042428f735a706befa2f38242b916bbc39"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling proc-macro2 v1.0.9 [INFO] [stderr] Compiling libc v0.2.67 [INFO] [stderr] Compiling syn v1.0.16 [INFO] [stderr] Compiling regex-syntax v0.6.16 [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 33.35s [INFO] running `"docker" "inspect" "adf82f738d2e417097bf5ff18fa72e042428f735a706befa2f38242b916bbc39"` [INFO] running `"docker" "rm" "-f" "adf82f738d2e417097bf5ff18fa72e042428f735a706befa2f38242b916bbc39"` [INFO] [stdout] adf82f738d2e417097bf5ff18fa72e042428f735a706befa2f38242b916bbc39 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 8d062dc0815401cfddadbb50877e234159ca834ad32709f0329084ef869bba35 [INFO] running `"docker" "start" "-a" "8d062dc0815401cfddadbb50877e234159ca834ad32709f0329084ef869bba35"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling version_check v0.9.1 [INFO] [stderr] Compiling serde v1.0.104 [INFO] [stderr] Compiling smallvec v1.2.0 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling pulldown-cmark v0.4.1 [INFO] [stderr] Compiling semver-parser v0.9.0 [INFO] [stderr] Compiling unicode-normalization v0.1.12 [INFO] [stderr] Compiling unicase v2.6.0 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling idna v0.1.5 [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 39.14s [INFO] running `"docker" "inspect" "8d062dc0815401cfddadbb50877e234159ca834ad32709f0329084ef869bba35"` [INFO] running `"docker" "rm" "-f" "8d062dc0815401cfddadbb50877e234159ca834ad32709f0329084ef869bba35"` [INFO] [stdout] 8d062dc0815401cfddadbb50877e234159ca834ad32709f0329084ef869bba35 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] d1763b9742c014c92c076214b7a8809f6d94a9f9ab1dde47e4b748108cee1dd6 [INFO] running `"docker" "start" "-a" "d1763b9742c014c92c076214b7a8809f6d94a9f9ab1dde47e4b748108cee1dd6"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.15s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/billboard-90248830468ac13a [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-b2dcaf9d49b1715d [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::default (line 34) ... ok [INFO] [stdout] test src/lib.rs - Billboard::new (line 47) ... ok [INFO] [stdout] test src/lib.rs - Billboard::display (line 82) ... ok [INFO] [stdout] test src/lib.rs - Billboard::builder (line 61) ... 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 `"docker" "inspect" "d1763b9742c014c92c076214b7a8809f6d94a9f9ab1dde47e4b748108cee1dd6"` [INFO] running `"docker" "rm" "-f" "d1763b9742c014c92c076214b7a8809f6d94a9f9ab1dde47e4b748108cee1dd6"` [INFO] [stdout] d1763b9742c014c92c076214b7a8809f6d94a9f9ab1dde47e4b748108cee1dd6