[INFO] cloning repository https://github.com/bddap/chaincad
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bddap/chaincad" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbddap%2Fchaincad", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbddap%2Fchaincad'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 141df341f4df4635c8b76e73b06c8feb8e2521a7
[INFO] checking bddap/chaincad against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbddap%2Fchaincad" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bddap/chaincad on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bddap/chaincad
[INFO] finished tweaking git repo https://github.com/bddap/chaincad
[INFO] tweaked toml for git repo https://github.com/bddap/chaincad written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/bddap/chaincad already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e9c04cbed0d5b4da951b09339b6bc3270d3f617948980e41119ea4d24c0aba1d
[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" "e9c04cbed0d5b4da951b09339b6bc3270d3f617948980e41119ea4d24c0aba1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e9c04cbed0d5b4da951b09339b6bc3270d3f617948980e41119ea4d24c0aba1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9c04cbed0d5b4da951b09339b6bc3270d3f617948980e41119ea4d24c0aba1d", kill_on_drop: false }`
[INFO] [stdout] e9c04cbed0d5b4da951b09339b6bc3270d3f617948980e41119ea4d24c0aba1d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] d21b3520ab637fd320cd81858eeae61ff58ecd9eed55366949665d2c02730dda
[INFO] running `Command { std: "docker" "start" "-a" "d21b3520ab637fd320cd81858eeae61ff58ecd9eed55366949665d2c02730dda", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking chaincad v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Parent`
[INFO] [stdout]  --> src/eval.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     Parent(Vec<DeSugaredClip<'a>>),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Child`
[INFO] [stdout]  --> src/eval.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Child(&'a [char]),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `desugar`
[INFO] [stdout]   --> src/eval.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn desugar<'b>(src: &'b Clip) -> DeSugaredClip<'b> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `desugar_parent`
[INFO] [stdout]   --> src/eval.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn desugar_parent<'b>(parent: &'b [Clip]) -> DeSugaredClip<'b> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "d21b3520ab637fd320cd81858eeae61ff58ecd9eed55366949665d2c02730dda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d21b3520ab637fd320cd81858eeae61ff58ecd9eed55366949665d2c02730dda", kill_on_drop: false }`
[INFO] [stdout] d21b3520ab637fd320cd81858eeae61ff58ecd9eed55366949665d2c02730dda