[INFO] cloning repository https://github.com/amit-mondal/funlang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/amit-mondal/funlang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famit-mondal%2Ffunlang", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ab2e0ff699d1bd0c9551d7a30ca0dfa1a45072cc
[INFO] checking amit-mondal/funlang against 5c543b0b8c73c7b72bc8284ced4fb22ead15734d for pr-160186
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famit-mondal%2Ffunlang" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/amit-mondal/funlang
[INFO] finished tweaking git repo https://github.com/amit-mondal/funlang
[INFO] tweaked toml for git repo https://github.com/amit-mondal/funlang written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/amit-mondal/funlang on toolchain 5c543b0b8c73c7b72bc8284ced4fb22ead15734d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/amit-mondal/funlang already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]     Updating git repository `https://github.com/TheDan64/inkwell`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 1353636bceeb6f44f3cc4a08e5c43ef924ea573ec0093661b8133331dbc8b083
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[INFO] [stderr]    Compiling fun v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> src/types/typecheck.rs:6:24
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> src/types/typecheck.rs:6:24
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `foo`
[INFO] [stdout]   --> src/codegen/llvm_gen.rs:48:21
[INFO] [stdout]    |
[INFO] [stdout] 48 |                 let foo = self
[INFO] [stdout]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_foo`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Alloc` and `Unwind` are never constructed
[INFO] [stdout]   --> src/graph/instructions.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub enum Instruction {
[INFO] [stdout]    |          ----------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 33 |     Alloc(usize),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 34 |     Unwind
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Instruction` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `gmachine_type`, `stack_type`, and `tag_type` are never read
[INFO] [stdout]   --> src/codegen/mod.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct GenContextTypes<'ctx> {
[INFO] [stdout]    |        --------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 28 |     gmachine_type: StructType<'ctx>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 29 |     gmachine_ptr_type: PointerType<'ctx>,
[INFO] [stdout] 30 |     stack_type: StructType<'ctx>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     tag_type: IntType<'ctx>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/codegen/mod.rs:47:24
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn init_types(ctx: &Context) -> GenContextTypes {
[INFO] [stdout]    |                        ^^^^^^^^     ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn init_types(ctx: &Context) -> GenContextTypes<'_> {
[INFO] [stdout]    |                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `foo`
[INFO] [stdout]   --> src/codegen/llvm_gen.rs:48:21
[INFO] [stdout]    |
[INFO] [stdout] 48 |                 let foo = self
[INFO] [stdout]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_foo`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Alloc` and `Unwind` are never constructed
[INFO] [stdout]   --> src/graph/instructions.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub enum Instruction {
[INFO] [stdout]    |          ----------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 33 |     Alloc(usize),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 34 |     Unwind
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Instruction` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `gmachine_type`, `stack_type`, and `tag_type` are never read
[INFO] [stdout]   --> src/codegen/mod.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct GenContextTypes<'ctx> {
[INFO] [stdout]    |        --------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 28 |     gmachine_type: StructType<'ctx>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 29 |     gmachine_ptr_type: PointerType<'ctx>,
[INFO] [stdout] 30 |     stack_type: StructType<'ctx>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     tag_type: IntType<'ctx>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/codegen/mod.rs:47:24
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn init_types(ctx: &Context) -> GenContextTypes {
[INFO] [stdout]    |                        ^^^^^^^^     ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn init_types(ctx: &Context) -> GenContextTypes<'_> {
[INFO] [stdout]    |                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 44.48s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: lalrpop v0.18.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 5`
[INFO] running `Command { std: "docker" "inspect" "1353636bceeb6f44f3cc4a08e5c43ef924ea573ec0093661b8133331dbc8b083", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1353636bceeb6f44f3cc4a08e5c43ef924ea573ec0093661b8133331dbc8b083", kill_on_drop: false }`
[INFO] [stdout] 1353636bceeb6f44f3cc4a08e5c43ef924ea573ec0093661b8133331dbc8b083
