[INFO] updating cached repository https://github.com/gambhiro/yaml-summary
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 799054c33bcc837112010695b14b67a4ff03f1bf
[INFO] checking gambhiro/yaml-summary against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgambhiro%2Fyaml-summary" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gambhiro/yaml-summary on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/gambhiro/yaml-summary
[INFO] finished tweaking git repo https://github.com/gambhiro/yaml-summary
[INFO] tweaked toml for git repo https://github.com/gambhiro/yaml-summary written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/gambhiro/yaml-summary already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e921ea97634a0d11193a0a5d47b6bc3d7765a53c874eea87b7829e7a06d4083c
[INFO] running `"docker" "start" "-a" "e921ea97634a0d11193a0a5d47b6bc3d7765a53c874eea87b7829e7a06d4083c"`
[INFO] [stderr]     Checking yaml-rust v0.3.4
[INFO] [stderr]     Checking yaml-summary v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/main.rs:115:13
[INFO] [stderr]     |
[INFO] [stderr] 115 | /             /// Parsing when item is a Yaml::String. If it is a valid path, the
[INFO] [stderr] 116 | |             /// Markdown will be parsed. Otherwise it is assumed to be a title.
[INFO] [stderr]     | |_______________________________________________________________________________^
[INFO] [stderr] 117 | /             Yaml::String(item) => {
[INFO] [stderr] 118 | |                 let path = PathBuf::from(item.clone());
[INFO] [stderr] 119 | |                 if path.exists() {
[INFO] [stderr] 120 | |                     return Chapter::from(path);
[INFO] [stderr] ...   |
[INFO] [stderr] 123 | |                 }
[INFO] [stderr] 124 | |             },
[INFO] [stderr]     | |_____________- rustdoc does not generate documentation for match arms
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/main.rs:126:13
[INFO] [stderr]     |
[INFO] [stderr] 126 | /             /// Parsing when item is a Yaml::Hash. Appropriate keys are
[INFO] [stderr] 127 | |             /// interpreted as properties.
[INFO] [stderr]     | |__________________________________________^
[INFO] [stderr] 128 | /             Yaml::Hash(item) => {
[INFO] [stderr] 129 | |                 let mut chapter = Chapter::empty();
[INFO] [stderr] 130 | |
[INFO] [stderr] 131 | |                 // title
[INFO] [stderr] ...   |
[INFO] [stderr] 180 | |                 return chapter;
[INFO] [stderr] 181 | |             },
[INFO] [stderr]     | |_____________- rustdoc does not generate documentation for match arms
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/main.rs:115:13
[INFO] [stderr]     |
[INFO] [stderr] 115 | /             /// Parsing when item is a Yaml::String. If it is a valid path, the
[INFO] [stderr] 116 | |             /// Markdown will be parsed. Otherwise it is assumed to be a title.
[INFO] [stderr]     | |_______________________________________________________________________________^
[INFO] [stderr] 117 | /             Yaml::String(item) => {
[INFO] [stderr] 118 | |                 let path = PathBuf::from(item.clone());
[INFO] [stderr] 119 | |                 if path.exists() {
[INFO] [stderr] 120 | |                     return Chapter::from(path);
[INFO] [stderr] ...   |
[INFO] [stderr] 123 | |                 }
[INFO] [stderr] 124 | |             },
[INFO] [stderr]     | |_____________- rustdoc does not generate documentation for match arms
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/main.rs:126:13
[INFO] [stderr]     |
[INFO] [stderr] 126 | /             /// Parsing when item is a Yaml::Hash. Appropriate keys are
[INFO] [stderr] 127 | |             /// interpreted as properties.
[INFO] [stderr]     | |__________________________________________^
[INFO] [stderr] 128 | /             Yaml::Hash(item) => {
[INFO] [stderr] 129 | |                 let mut chapter = Chapter::empty();
[INFO] [stderr] 130 | |
[INFO] [stderr] 131 | |                 // title
[INFO] [stderr] ...   |
[INFO] [stderr] 180 | |                 return chapter;
[INFO] [stderr] 181 | |             },
[INFO] [stderr]     | |_____________- rustdoc does not generate documentation for match arms
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.46s
[INFO] running `"docker" "inspect" "e921ea97634a0d11193a0a5d47b6bc3d7765a53c874eea87b7829e7a06d4083c"`
[INFO] running `"docker" "rm" "-f" "e921ea97634a0d11193a0a5d47b6bc3d7765a53c874eea87b7829e7a06d4083c"`
[INFO] [stdout] e921ea97634a0d11193a0a5d47b6bc3d7765a53c874eea87b7829e7a06d4083c