[INFO] cloning repository https://github.com/kodokoto/lightweight-muse
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kodokoto/lightweight-muse" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkodokoto%2Flightweight-muse", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkodokoto%2Flightweight-muse'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 224a5f66801c8dcf7bef1c4c7561a90ad6b05ee3
[INFO] checking kodokoto/lightweight-muse against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkodokoto%2Flightweight-muse" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kodokoto/lightweight-muse on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kodokoto/lightweight-muse
[INFO] finished tweaking git repo https://github.com/kodokoto/lightweight-muse
[INFO] tweaked toml for git repo https://github.com/kodokoto/lightweight-muse written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 6 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 179cc46a9f2529a956cfdd274383e899c9e9bedbc78a7297429ccd1abaebd416
[INFO] running `Command { std: "docker" "start" "-a" "179cc46a9f2529a956cfdd274383e899c9e9bedbc78a7297429ccd1abaebd416", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "179cc46a9f2529a956cfdd274383e899c9e9bedbc78a7297429ccd1abaebd416", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "179cc46a9f2529a956cfdd274383e899c9e9bedbc78a7297429ccd1abaebd416", kill_on_drop: false }`
[INFO] [stdout] 179cc46a9f2529a956cfdd274383e899c9e9bedbc78a7297429ccd1abaebd416
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3e91c97256078f7e89b55ccedb7c5843374973889cb22d92e28871b9c70e6c6
[INFO] running `Command { std: "docker" "start" "-a" "d3e91c97256078f7e89b55ccedb7c5843374973889cb22d92e28871b9c70e6c6", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking regex-syntax v0.8.4
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]     Checking regex v1.10.6
[INFO] [stderr]     Checking lightweight-muse v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `AST` is never used
[INFO] [stdout]   --> src/ast.rs:19:11
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub trait AST: Evaluate + TypeCheck {}
[INFO] [stdout]    |           ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `mutable` is never read
[INFO] [stdout]   --> src/ast.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |     Let {
[INFO] [stdout]    |     --- field in this variant
[INFO] [stdout] 95 |         mutable: bool,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Term` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `AST` is never used
[INFO] [stdout]   --> src/ast.rs:19:11
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub trait AST: Evaluate + TypeCheck {}
[INFO] [stdout]    |           ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `mutable` is never read
[INFO] [stdout]   --> src/ast.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |     Let {
[INFO] [stdout]    |     --- field in this variant
[INFO] [stdout] 95 |         mutable: bool,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Term` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.33s
[INFO] running `Command { std: "docker" "inspect" "d3e91c97256078f7e89b55ccedb7c5843374973889cb22d92e28871b9c70e6c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3e91c97256078f7e89b55ccedb7c5843374973889cb22d92e28871b9c70e6c6", kill_on_drop: false }`
[INFO] [stdout] d3e91c97256078f7e89b55ccedb7c5843374973889cb22d92e28871b9c70e6c6