[INFO] cloning repository https://github.com/yoatnic/til-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yoatnic/til-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyoatnic%2Ftil-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyoatnic%2Ftil-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c2be59a4617cd5a0dea22852b890471baac9c006
[INFO] checking yoatnic/til-rust against master#c919f490bbcd2b29b74016101f7ec71aaa24bdbb for pr-79073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyoatnic%2Ftil-rust" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yoatnic/til-rust on toolchain c919f490bbcd2b29b74016101f7ec71aaa24bdbb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yoatnic/til-rust
[INFO] finished tweaking git repo https://github.com/yoatnic/til-rust
[INFO] tweaked toml for git repo https://github.com/yoatnic/til-rust written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/yoatnic/til-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b3a61ddcc43d26dbdbd0ed5a211ac425856a16895da3a16f9abdefa500430a6
[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" "5b3a61ddcc43d26dbdbd0ed5a211ac425856a16895da3a16f9abdefa500430a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b3a61ddcc43d26dbdbd0ed5a211ac425856a16895da3a16f9abdefa500430a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b3a61ddcc43d26dbdbd0ed5a211ac425856a16895da3a16f9abdefa500430a6", kill_on_drop: false }`
[INFO] [stdout] 5b3a61ddcc43d26dbdbd0ed5a211ac425856a16895da3a16f9abdefa500430a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ae28e83f7ef8850121711de173d989b1dd4a2c6de141685bf9afe995a7de91df
[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" "ae28e83f7ef8850121711de173d989b1dd4a2c6de141685bf9afe995a7de91df", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `kind`
[INFO] [stdout]  --> src/enum_example.rs:7:3
[INFO] [stdout]   |
[INFO] [stdout] 7 |   kind: IpAddrKind,
[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: field is never read: `kind`
[INFO] [stdout]  --> src/enum_example.rs:7:3
[INFO] [stdout]   |
[INFO] [stdout] 7 |   kind: IpAddrKind,
[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 3.89s
[INFO] running `Command { std: "docker" "inspect" "ae28e83f7ef8850121711de173d989b1dd4a2c6de141685bf9afe995a7de91df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae28e83f7ef8850121711de173d989b1dd4a2c6de141685bf9afe995a7de91df", kill_on_drop: false }`
[INFO] [stdout] ae28e83f7ef8850121711de173d989b1dd4a2c6de141685bf9afe995a7de91df