[INFO] cloning repository https://github.com/gambhiro/yaml-summary
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gambhiro/yaml-summary" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgambhiro%2Fyaml-summary", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgambhiro%2Fyaml-summary'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 799054c33bcc837112010695b14b67a4ff03f1bf
[INFO] checking gambhiro/yaml-summary against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgambhiro%2Fyaml-summary" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gambhiro/yaml-summary on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-3/source/Cargo.toml
[INFO] crate git repo https://github.com/gambhiro/yaml-summary already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded yaml-rust v0.3.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "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] 90a8c1cc21f52c96357a878edc3c312f03ad508ba3f47ffcde8157b76c3497a8
[INFO] running `Command { std: "docker" "start" "-a" "90a8c1cc21f52c96357a878edc3c312f03ad508ba3f47ffcde8157b76c3497a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "90a8c1cc21f52c96357a878edc3c312f03ad508ba3f47ffcde8157b76c3497a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90a8c1cc21f52c96357a878edc3c312f03ad508ba3f47ffcde8157b76c3497a8", kill_on_drop: false }`
[INFO] [stdout] 90a8c1cc21f52c96357a878edc3c312f03ad508ba3f47ffcde8157b76c3497a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a1f2210402ecbb82fb877f091657fb784779e912c860da8feb1916113e43220
[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" "6a1f2210402ecbb82fb877f091657fb784779e912c860da8feb1916113e43220", kill_on_drop: false }`
[INFO] [stderr]     Checking yaml-rust v0.3.4
[INFO] [stderr]     Checking yaml-summary v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/main.rs:115:13
[INFO] [stdout]     |
[INFO] [stdout] 115 | /             /// Parsing when item is a Yaml::String. If it is a valid path, the
[INFO] [stdout] 116 | |             /// Markdown will be parsed. Otherwise it is assumed to be a title.
[INFO] [stdout]     | |_______________________________________________________________________________^
[INFO] [stdout] 117 | /             Yaml::String(item) => {
[INFO] [stdout] 118 | |                 let path = PathBuf::from(item.clone());
[INFO] [stdout] 119 | |                 if path.exists() {
[INFO] [stdout] 120 | |                     return Chapter::from(path);
[INFO] [stdout] ...   |
[INFO] [stdout] 123 | |                 }
[INFO] [stdout] 124 | |             },
[INFO] [stdout]     | |_____________- rustdoc does not generate documentation for match arms
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/main.rs:126:13
[INFO] [stdout]     |
[INFO] [stdout] 126 | /             /// Parsing when item is a Yaml::Hash. Appropriate keys are
[INFO] [stdout] 127 | |             /// interpreted as properties.
[INFO] [stdout]     | |__________________________________________^
[INFO] [stdout] 128 | /             Yaml::Hash(item) => {
[INFO] [stdout] 129 | |                 let mut chapter = Chapter::empty();
[INFO] [stdout] 130 | |
[INFO] [stdout] 131 | |                 // title
[INFO] [stdout] ...   |
[INFO] [stdout] 180 | |                 return chapter;
[INFO] [stdout] 181 | |             },
[INFO] [stdout]     | |_____________- rustdoc does not generate documentation for match arms
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/main.rs:115:13
[INFO] [stdout]     |
[INFO] [stdout] 115 | /             /// Parsing when item is a Yaml::String. If it is a valid path, the
[INFO] [stdout] 116 | |             /// Markdown will be parsed. Otherwise it is assumed to be a title.
[INFO] [stdout]     | |_______________________________________________________________________________^
[INFO] [stdout] 117 | /             Yaml::String(item) => {
[INFO] [stdout] 118 | |                 let path = PathBuf::from(item.clone());
[INFO] [stdout] 119 | |                 if path.exists() {
[INFO] [stdout] 120 | |                     return Chapter::from(path);
[INFO] [stdout] ...   |
[INFO] [stdout] 123 | |                 }
[INFO] [stdout] 124 | |             },
[INFO] [stdout]     | |_____________- rustdoc does not generate documentation for match arms
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/main.rs:126:13
[INFO] [stdout]     |
[INFO] [stdout] 126 | /             /// Parsing when item is a Yaml::Hash. Appropriate keys are
[INFO] [stdout] 127 | |             /// interpreted as properties.
[INFO] [stdout]     | |__________________________________________^
[INFO] [stdout] 128 | /             Yaml::Hash(item) => {
[INFO] [stdout] 129 | |                 let mut chapter = Chapter::empty();
[INFO] [stdout] 130 | |
[INFO] [stdout] 131 | |                 // title
[INFO] [stdout] ...   |
[INFO] [stdout] 180 | |                 return chapter;
[INFO] [stdout] 181 | |             },
[INFO] [stdout]     | |_____________- rustdoc does not generate documentation for match arms
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.34s
[INFO] running `Command { std: "docker" "inspect" "6a1f2210402ecbb82fb877f091657fb784779e912c860da8feb1916113e43220", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a1f2210402ecbb82fb877f091657fb784779e912c860da8feb1916113e43220", kill_on_drop: false }`
[INFO] [stdout] 6a1f2210402ecbb82fb877f091657fb784779e912c860da8feb1916113e43220