[INFO] cloning repository https://github.com/aos/luxor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aos/luxor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faos%2Fluxor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faos%2Fluxor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 57d1bb3224d81dc78dabdeee07e8d75be75cfffe
[INFO] checking aos/luxor against master#0dce3f606e05cffab7361c132a399d3550ab0df8 for pr-78376
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faos%2Fluxor" "/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/aos/luxor on toolchain 0dce3f606e05cffab7361c132a399d3550ab0df8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aos/luxor
[INFO] finished tweaking git repo https://github.com/aos/luxor
[INFO] tweaked toml for git repo https://github.com/aos/luxor written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/aos/luxor already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e07a8b55a6f8780dde305a6c6ea113968d653069660299776b68192107ce8a7f
[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" "e07a8b55a6f8780dde305a6c6ea113968d653069660299776b68192107ce8a7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e07a8b55a6f8780dde305a6c6ea113968d653069660299776b68192107ce8a7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e07a8b55a6f8780dde305a6c6ea113968d653069660299776b68192107ce8a7f", kill_on_drop: false }`
[INFO] [stdout] e07a8b55a6f8780dde305a6c6ea113968d653069660299776b68192107ce8a7f
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f0be46e76fcc2a75c331d81b5298a47fc8656b46cbf50ff348d7a7f8eacc9c96
[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" "f0be46e76fcc2a75c331d81b5298a47fc8656b46cbf50ff348d7a7f8eacc9c96", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking luxor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Binary`
[INFO] [stdout]   --> src/ast.rs:6:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | /     Binary {
[INFO] [stdout] 7  | |         left: Box<Expr>,
[INFO] [stdout] 8  | |         operator: Token,
[INFO] [stdout] 9  | |         right: Box<Expr>,
[INFO] [stdout] 10 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Grouping`
[INFO] [stdout]   --> src/ast.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | /     Grouping {
[INFO] [stdout] 12 | |         expression: Box<Expr>,
[INFO] [stdout] 13 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Lit`
[INFO] [stdout]   --> src/ast.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Lit(Token),
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Unary`
[INFO] [stdout]   --> src/ast.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | /     Unary {
[INFO] [stdout] 16 | |         operator: Token,
[INFO] [stdout] 17 | |         right: Box<Expr>,
[INFO] [stdout] 18 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `total_len`
[INFO] [stdout]  --> src/scanner.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     total_len: u32,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `total_len`
[INFO] [stdout]  --> src/scanner.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     total_len: u32,
[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 3.81s
[INFO] running `Command { std: "docker" "inspect" "f0be46e76fcc2a75c331d81b5298a47fc8656b46cbf50ff348d7a7f8eacc9c96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0be46e76fcc2a75c331d81b5298a47fc8656b46cbf50ff348d7a7f8eacc9c96", kill_on_drop: false }`
[INFO] [stdout] f0be46e76fcc2a75c331d81b5298a47fc8656b46cbf50ff348d7a7f8eacc9c96