[INFO] cloning repository https://github.com/cronokirby/ovis
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cronokirby/ovis" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcronokirby%2Fovis", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcronokirby%2Fovis'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f261c175753b6589aecfc70b142bd8ab20c914d4
[INFO] checking cronokirby/ovis against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcronokirby%2Fovis" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cronokirby/ovis 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/cronokirby/ovis
[INFO] finished tweaking git repo https://github.com/cronokirby/ovis
[INFO] tweaked toml for git repo https://github.com/cronokirby/ovis written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/cronokirby/ovis 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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d256c695084b6a4100bdb11db1f9c804225beaeea7fb2d9ad284e3534c0a8ad2
[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" "d256c695084b6a4100bdb11db1f9c804225beaeea7fb2d9ad284e3534c0a8ad2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d256c695084b6a4100bdb11db1f9c804225beaeea7fb2d9ad284e3534c0a8ad2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d256c695084b6a4100bdb11db1f9c804225beaeea7fb2d9ad284e3534c0a8ad2", kill_on_drop: false }`
[INFO] [stdout] d256c695084b6a4100bdb11db1f9c804225beaeea7fb2d9ad284e3534c0a8ad2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 82cb75a6349c8778b903923a0374a08e6c3d5e83b70fb11aacec53270b402a18
[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" "82cb75a6349c8778b903923a0374a08e6c3d5e83b70fb11aacec53270b402a18", kill_on_drop: false }`
[INFO] [stderr]    Compiling peg-runtime v0.6.3
[INFO] [stderr]    Compiling peg-macros v0.6.3
[INFO] [stderr]     Checking peg v0.6.3
[INFO] [stderr]     Checking ovis v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `builtins`
[INFO] [stdout]    --> src/main.rs:131:28
[INFO] [stdout]     |
[INFO] [stdout] 131 |     let (simplified, dict, builtins) = simplifier::simplify(ast, &mut source);
[INFO] [stdout]     |                            ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_builtins`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `builtins`
[INFO] [stdout]    --> src/main.rs:131:28
[INFO] [stdout]     |
[INFO] [stdout] 131 |     let (simplified, dict, builtins) = simplifier::simplify(ast, &mut source);
[INFO] [stdout]     |                            ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_builtins`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/stg.rs:305:17
[INFO] [stdout]     |
[INFO] [stdout] 305 |             let name = source.next();
[INFO] [stdout]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/stg.rs:305:17
[INFO] [stdout]     |
[INFO] [stdout] 305 |             let name = source.next();
[INFO] [stdout]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `index`
[INFO] [stdout]    --> src/simplifier.rs:326:8
[INFO] [stdout]     |
[INFO] [stdout] 326 |     fn index(&self) -> usize {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ident`
[INFO] [stdout]    --> src/simplifier.rs:350:12
[INFO] [stdout]     |
[INFO] [stdout] 350 |     pub fn ident(&self, builtin: Builtin) -> Ident {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `No`
[INFO] [stdout]   --> src/stg.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     No,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `index`
[INFO] [stdout]    --> src/simplifier.rs:326:8
[INFO] [stdout]     |
[INFO] [stdout] 326 |     fn index(&self) -> usize {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ident`
[INFO] [stdout]    --> src/simplifier.rs:350:12
[INFO] [stdout]     |
[INFO] [stdout] 350 |     pub fn ident(&self, builtin: Builtin) -> Ident {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `No`
[INFO] [stdout]   --> src/stg.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     No,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.43s
[INFO] running `Command { std: "docker" "inspect" "82cb75a6349c8778b903923a0374a08e6c3d5e83b70fb11aacec53270b402a18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82cb75a6349c8778b903923a0374a08e6c3d5e83b70fb11aacec53270b402a18", kill_on_drop: false }`
[INFO] [stdout] 82cb75a6349c8778b903923a0374a08e6c3d5e83b70fb11aacec53270b402a18