[INFO] cloning repository https://github.com/wjlewis/lammy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wjlewis/lammy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwjlewis%2Flammy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwjlewis%2Flammy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 40c12e077781d5b52b952faa15bcc3061eb8cd97
[INFO] checking wjlewis/lammy against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwjlewis%2Flammy" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wjlewis/lammy on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wjlewis/lammy
[INFO] finished tweaking git repo https://github.com/wjlewis/lammy
[INFO] tweaked toml for git repo https://github.com/wjlewis/lammy written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/wjlewis/lammy already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "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] 7f1149e0e3d7fa98f33b17a64a0e4ae11bb6a1c3faec59e6d4215bd0c761c83b
[INFO] running `Command { std: "docker" "start" "-a" "7f1149e0e3d7fa98f33b17a64a0e4ae11bb6a1c3faec59e6d4215bd0c761c83b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f1149e0e3d7fa98f33b17a64a0e4ae11bb6a1c3faec59e6d4215bd0c761c83b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f1149e0e3d7fa98f33b17a64a0e4ae11bb6a1c3faec59e6d4215bd0c761c83b", kill_on_drop: false }`
[INFO] [stdout] 7f1149e0e3d7fa98f33b17a64a0e4ae11bb6a1c3faec59e6d4215bd0c761c83b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "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] 9d9b8b748a4ae10aacb64649cee3da481ac2a2e72ce1b906fa2582a942f1a644
[INFO] running `Command { std: "docker" "start" "-a" "9d9b8b748a4ae10aacb64649cee3da481ac2a2e72ce1b906fa2582a942f1a644", kill_on_drop: false }`
[INFO] [stderr]     Checking lammy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Index`
[INFO] [stdout]  --> src/terms/mod.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Index(usize),
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Abs`
[INFO] [stdout]  --> src/terms/mod.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     Abs { body: Term },
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `App`
[INFO] [stdout]   --> src/terms/mod.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     App { rator: Term, rand: Term },
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `subst_in`
[INFO] [stdout]   --> src/terms/mod.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn subst_in(&self, term: Term, index: usize) -> Term {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `shift_free`
[INFO] [stdout]   --> src/terms/mod.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn shift_free(&self, amt: isize) -> Term {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `parse_alias_def`, `parse_import`, `parse_term`, `parse_terms`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     parse_alias_def, parse_import, parse_module, parse_term, parse_terms, Lexer, TreeBuilder,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^                ^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `parse_alias_def`, `parse_import`, `parse_term`, `parse_terms`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     parse_alias_def, parse_import, parse_module, parse_term, parse_terms, Lexer, TreeBuilder,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^                ^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` 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 1.51s
[INFO] running `Command { std: "docker" "inspect" "9d9b8b748a4ae10aacb64649cee3da481ac2a2e72ce1b906fa2582a942f1a644", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d9b8b748a4ae10aacb64649cee3da481ac2a2e72ce1b906fa2582a942f1a644", kill_on_drop: false }`
[INFO] [stdout] 9d9b8b748a4ae10aacb64649cee3da481ac2a2e72ce1b906fa2582a942f1a644