[INFO] cloning repository https://github.com/alehander92/lang-sheep
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alehander92/lang-sheep" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falehander92%2Flang-sheep", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falehander92%2Flang-sheep'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a20a32588f588acfcdfda8a39cb4dcf5f04bc73e
[INFO] checking alehander92/lang-sheep against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falehander92%2Flang-sheep" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alehander92/lang-sheep on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/alehander92/lang-sheep
[INFO] finished tweaking git repo https://github.com/alehander92/lang-sheep
[INFO] tweaked toml for git repo https://github.com/alehander92/lang-sheep written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/alehander92/lang-sheep already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cca6dab7b88db04feb89b18306b6a287105f714501570caac10eb5599e7f276d
[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" "cca6dab7b88db04feb89b18306b6a287105f714501570caac10eb5599e7f276d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cca6dab7b88db04feb89b18306b6a287105f714501570caac10eb5599e7f276d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cca6dab7b88db04feb89b18306b6a287105f714501570caac10eb5599e7f276d", kill_on_drop: false }`
[INFO] [stdout] cca6dab7b88db04feb89b18306b6a287105f714501570caac10eb5599e7f276d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d23f1c668e69dc5be5fc8aa6ae8214c1dcdfe74c77ec2e3323a9bfea0a7c2df
[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" "8d23f1c668e69dc5be5fc8aa6ae8214c1dcdfe74c77ec2e3323a9bfea0a7c2df", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking lang-sheep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::env::Env`
[INFO] [stdout]  --> src/asm_generator.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::env::Env;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::types::Type`
[INFO] [stdout]  --> src/asm_generator.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::types::Type;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::env::Env`
[INFO] [stdout]  --> src/asm_generator.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::env::Env;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::types::Type`
[INFO] [stdout]  --> src/asm_generator.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::types::Type;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]   --> src/typechecker.rs:13:60
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn check_call(typed_function: Node, typed_args: Vec<Node>, env: Env<Type>) -> Result<Type, LangSheepError> {
[INFO] [stdout]    |                                                            ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `path`
[INFO] [stdout]   --> src/asm_generator.rs:51:39
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub fn generate_asm(typed_node: Node, path: String) -> Result<(), LangSheepError> {
[INFO] [stdout]    |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]   --> src/typechecker.rs:13:60
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn check_call(typed_function: Node, typed_args: Vec<Node>, env: Env<Type>) -> Result<Type, LangSheepError> {
[INFO] [stdout]    |                                                            ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `path`
[INFO] [stdout]   --> src/asm_generator.rs:51:39
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub fn generate_asm(typed_node: Node, path: String) -> Result<(), LangSheepError> {
[INFO] [stdout]    |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Int`
[INFO] [stdout]   --> src/ast.rs:11:2
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Int(i64),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Int`
[INFO] [stdout]   --> src/ast.rs:11:2
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Int(i64),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.83s
[INFO] running `Command { std: "docker" "inspect" "8d23f1c668e69dc5be5fc8aa6ae8214c1dcdfe74c77ec2e3323a9bfea0a7c2df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d23f1c668e69dc5be5fc8aa6ae8214c1dcdfe74c77ec2e3323a9bfea0a7c2df", kill_on_drop: false }`
[INFO] [stdout] 8d23f1c668e69dc5be5fc8aa6ae8214c1dcdfe74c77ec2e3323a9bfea0a7c2df