[INFO] cloning repository https://github.com/wantJoy1/yaml2dir
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wantJoy1/yaml2dir" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FwantJoy1%2Fyaml2dir", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FwantJoy1%2Fyaml2dir'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 97760a5653a6c2ec1df30df3d0a6fc536d5d6635
[INFO] checking wantJoy1/yaml2dir against master#c9228570668803e3e6402770d55f23a12c9ae686 for pr-79472
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FwantJoy1%2Fyaml2dir" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wantJoy1/yaml2dir on toolchain c9228570668803e3e6402770d55f23a12c9ae686
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wantJoy1/yaml2dir
[INFO] finished tweaking git repo https://github.com/wantJoy1/yaml2dir
[INFO] tweaked toml for git repo https://github.com/wantJoy1/yaml2dir written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/wantJoy1/yaml2dir already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 25d657595243cd2bf5e2d7dc5e063d71b28998a54e0c0aaee2963919a2325764
[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" "25d657595243cd2bf5e2d7dc5e063d71b28998a54e0c0aaee2963919a2325764", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25d657595243cd2bf5e2d7dc5e063d71b28998a54e0c0aaee2963919a2325764", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25d657595243cd2bf5e2d7dc5e063d71b28998a54e0c0aaee2963919a2325764", kill_on_drop: false }`
[INFO] [stdout] 25d657595243cd2bf5e2d7dc5e063d71b28998a54e0c0aaee2963919a2325764
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d509ad72a0f72f6bbffdebfc6e50601c787d061bc0deef62bad1d9eb7f234a9d
[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" "d509ad72a0f72f6bbffdebfc6e50601c787d061bc0deef62bad1d9eb7f234a9d", kill_on_drop: false }`
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]     Checking yaml2dir v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `inspect`
[INFO] [stdout]   --> src/main.rs:40:4
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn inspect(y: &Yaml, n: usize) -> () {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `inspect`
[INFO] [stdout]   --> src/main.rs:40:4
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn inspect(y: &Yaml, n: usize) -> () {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.80s
[INFO] running `Command { std: "docker" "inspect" "d509ad72a0f72f6bbffdebfc6e50601c787d061bc0deef62bad1d9eb7f234a9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d509ad72a0f72f6bbffdebfc6e50601c787d061bc0deef62bad1d9eb7f234a9d", kill_on_drop: false }`
[INFO] [stdout] d509ad72a0f72f6bbffdebfc6e50601c787d061bc0deef62bad1d9eb7f234a9d