[INFO] cloning repository https://github.com/Piotriox/kria-lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Piotriox/kria-lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPiotriox%2Fkria-lang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPiotriox%2Fkria-lang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fb2f08ea676028d49303b2235827b9ab942ee399
[INFO] checking Piotriox/kria-lang against eca445e5ae4a6679cc27d3a09106ce245e13a5a6 for pr-162478
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPiotriox%2Fkria-lang" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Piotriox/kria-lang
[INFO] finished tweaking git repo https://github.com/Piotriox/kria-lang
[INFO] tweaked toml for git repo https://github.com/Piotriox/kria-lang written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Piotriox/kria-lang on toolchain eca445e5ae4a6679cc27d3a09106ce245e13a5a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Piotriox/kria-lang 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" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fd-lock v4.0.4
[INFO] [stderr]   Downloaded rustyline v14.0.0
[INFO] [stderr]   Downloaded nix v0.28.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 9328b23d4b52c95172d8e979fdc4097bc53c235801408db3697210e394b68219
[INFO] running `Command { std: "docker" "start" "9328b23d4b52c95172d8e979fdc4097bc53c235801408db3697210e394b68219", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9328b23d4b52c95172d8e979fdc4097bc53c235801408db3697210e394b68219", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "9328b23d4b52c95172d8e979fdc4097bc53c235801408db3697210e394b68219" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9328b23d4b52c95172d8e979fdc4097bc53c235801408db3697210e394b68219", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "9328b23d4b52c95172d8e979fdc4097bc53c235801408db3697210e394b68219" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg_aliases v0.1.1
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking memchr v2.8.0
[INFO] [stderr]     Checking unicode-segmentation v1.13.2
[INFO] [stderr]     Checking unicode-width v0.1.14
[INFO] [stderr]     Checking fd-lock v4.0.4
[INFO] [stderr]     Checking home v0.5.12
[INFO] [stderr]    Compiling nix v0.28.0
[INFO] [stderr]     Checking log v0.4.29
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]     Checking rustyline v14.0.0
[INFO] [stderr]     Checking kria v1.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `IrBlock`
[INFO] [stdout]  --> src/ir/builder.rs:3:19
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::inst::{IrBlock, IrInst, IrPhi, IrTerminator};
[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: `crate::bytecode::*`
[INFO] [stdout]    --> src/ir/inst.rs:363:13
[INFO] [stdout]     |
[INFO] [stdout] 363 |         use crate::bytecode::*;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BinaryOperator`
[INFO] [stdout]  --> src/ir/opt/member_hoist.rs:3:18
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::ast::{BinaryOperator, Expression, Statement};
[INFO] [stdout]   |                  ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `IrTerminator`
[INFO] [stdout]  --> src/ir/types.rs:6:36
[INFO] [stdout]   |
[INFO] [stdout] 6 | use super::inst::{IrBlock, IrInst, IrTerminator};
[INFO] [stdout]   |                                    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `IrBlock`
[INFO] [stdout]  --> src/ir/builder.rs:3:19
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::inst::{IrBlock, IrInst, IrPhi, IrTerminator};
[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: `crate::bytecode::*`
[INFO] [stdout]    --> src/ir/inst.rs:363:13
[INFO] [stdout]     |
[INFO] [stdout] 363 |         use crate::bytecode::*;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BinaryOperator`
[INFO] [stdout]  --> src/ir/opt/member_hoist.rs:3:18
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::ast::{BinaryOperator, Expression, Statement};
[INFO] [stdout]   |                  ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `IrTerminator`
[INFO] [stdout]  --> src/ir/types.rs:6:36
[INFO] [stdout]   |
[INFO] [stdout] 6 | use super::inst::{IrBlock, IrInst, IrTerminator};
[INFO] [stdout]   |                                    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]    --> src/ir/inst.rs:378:28
[INFO] [stdout]     |
[INFO] [stdout] 378 |             IrInst::Call { args, .. } => 1 + 4,
[INFO] [stdout]     |                            ^^^^ help: try ignoring the field: `args: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `elements`
[INFO] [stdout]    --> src/ir/inst.rs:383:34
[INFO] [stdout]     |
[INFO] [stdout] 383 |             IrInst::BuildArray { elements, .. } => 1 + 4 + 1,
[INFO] [stdout]     |                                  ^^^^^^^^ help: try ignoring the field: `elements: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `start`
[INFO] [stdout]    --> src/ir/lift.rs:113:23
[INFO] [stdout]     |
[INFO] [stdout] 113 |         if let Some(&(start, end)) = skip.iter().find(|&&(s, _)| s == ip) {
[INFO] [stdout]     |                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_start`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ir/recorder.rs:439:19
[INFO] [stdout]     |
[INFO] [stdout] 439 |     pub fn finish(mut self) -> IrModule {
[INFO] [stdout]     |                   ----^^^^
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]    --> src/ir/inst.rs:378:28
[INFO] [stdout]     |
[INFO] [stdout] 378 |             IrInst::Call { args, .. } => 1 + 4,
[INFO] [stdout]     |                            ^^^^ help: try ignoring the field: `args: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `elements`
[INFO] [stdout]    --> src/ir/inst.rs:383:34
[INFO] [stdout]     |
[INFO] [stdout] 383 |             IrInst::BuildArray { elements, .. } => 1 + 4 + 1,
[INFO] [stdout]     |                                  ^^^^^^^^ help: try ignoring the field: `elements: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `start`
[INFO] [stdout]    --> src/ir/lift.rs:113:23
[INFO] [stdout]     |
[INFO] [stdout] 113 |         if let Some(&(start, end)) = skip.iter().find(|&&(s, _)| s == ip) {
[INFO] [stdout]     |                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_start`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `ip` is never read
[INFO] [stdout]     --> src/vm.rs:1042:21
[INFO] [stdout]      |
[INFO] [stdout] 1042 |                     ip += 4;
[INFO] [stdout]      |                     ^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 1052 |                     ip = loop_start;
[INFO] [stdout]      |                     --------------- `ip` is overwritten here before the previous value is read
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ir/recorder.rs:439:19
[INFO] [stdout]     |
[INFO] [stdout] 439 |     pub fn finish(mut self) -> IrModule {
[INFO] [stdout]     |                   ----^^^^
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `ip` is never read
[INFO] [stdout]     --> src/vm.rs:1042:21
[INFO] [stdout]      |
[INFO] [stdout] 1042 |                     ip += 4;
[INFO] [stdout]      |                     ^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 1052 |                     ip = loop_start;
[INFO] [stdout]      |                     --------------- `ip` is overwritten here before the previous value is read
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.29s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nix v0.28.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "9328b23d4b52c95172d8e979fdc4097bc53c235801408db3697210e394b68219", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9328b23d4b52c95172d8e979fdc4097bc53c235801408db3697210e394b68219", kill_on_drop: false }`
[INFO] [stdout] 9328b23d4b52c95172d8e979fdc4097bc53c235801408db3697210e394b68219
