[INFO] cloning repository https://github.com/clio-lang/rio
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/clio-lang/rio" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclio-lang%2Frio", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclio-lang%2Frio'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b88be15c71ec79803f1913cf6beee5910941d200
[INFO] checking clio-lang/rio against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclio-lang%2Frio" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/clio-lang/rio on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/clio-lang/rio
[INFO] finished tweaking git repo https://github.com/clio-lang/rio
[INFO] tweaked toml for git repo https://github.com/clio-lang/rio written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/clio-lang/rio already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "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] 215a46e72d64f20fa0d256636eba9e132f564a68ae5418039f37d1196d2ceb96
[INFO] running `Command { std: "docker" "start" "-a" "215a46e72d64f20fa0d256636eba9e132f564a68ae5418039f37d1196d2ceb96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "215a46e72d64f20fa0d256636eba9e132f564a68ae5418039f37d1196d2ceb96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "215a46e72d64f20fa0d256636eba9e132f564a68ae5418039f37d1196d2ceb96", kill_on_drop: false }`
[INFO] [stdout] 215a46e72d64f20fa0d256636eba9e132f564a68ae5418039f37d1196d2ceb96
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f86c385619a5f027376e72d768858b60e1fbc800885cc98232e0125f19db6e0d
[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" "f86c385619a5f027376e72d768858b60e1fbc800885cc98232e0125f19db6e0d", kill_on_drop: false }`
[INFO] [stderr]     Checking rio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `indentation_level`
[INFO] [stdout]  --> src/parser/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     indentation_level: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `indentation_level`
[INFO] [stdout]  --> src/parser/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     indentation_level: 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "f86c385619a5f027376e72d768858b60e1fbc800885cc98232e0125f19db6e0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f86c385619a5f027376e72d768858b60e1fbc800885cc98232e0125f19db6e0d", kill_on_drop: false }`
[INFO] [stdout] f86c385619a5f027376e72d768858b60e1fbc800885cc98232e0125f19db6e0d