[INFO] cloning repository https://github.com/Koyin2005/Kae
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Koyin2005/Kae" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKoyin2005%2FKae", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKoyin2005%2FKae'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f59bdcb17b08e20bfec4a44b68dadfb0cd8d7463
[INFO] checking Koyin2005/Kae against master#336209eef13882bd1e211b24779584cb7ef911eb for pr-129249
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKoyin2005%2FKae" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Koyin2005/Kae on toolchain 336209eef13882bd1e211b24779584cb7ef911eb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+336209eef13882bd1e211b24779584cb7ef911eb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Koyin2005/Kae
[INFO] finished tweaking git repo https://github.com/Koyin2005/Kae
[INFO] tweaked toml for git repo https://github.com/Koyin2005/Kae written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Koyin2005/Kae 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" "+336209eef13882bd1e211b24779584cb7ef911eb" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+336209eef13882bd1e211b24779584cb7ef911eb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a969cb6d8e3f209b7bf0230903c111c67edc09ee1a4b7aa26107e655b0722c0
[INFO] running `Command { std: "docker" "start" "-a" "4a969cb6d8e3f209b7bf0230903c111c67edc09ee1a4b7aa26107e655b0722c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a969cb6d8e3f209b7bf0230903c111c67edc09ee1a4b7aa26107e655b0722c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a969cb6d8e3f209b7bf0230903c111c67edc09ee1a4b7aa26107e655b0722c0", kill_on_drop: false }`
[INFO] [stdout] 4a969cb6d8e3f209b7bf0230903c111c67edc09ee1a4b7aa26107e655b0722c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+336209eef13882bd1e211b24779584cb7ef911eb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19f86de9b2c8dd66e260ac0e5aaec5a2330f6ff1618c4276bad53c646686de85
[INFO] running `Command { std: "docker" "start" "-a" "19f86de9b2c8dd66e260ac0e5aaec5a2330f6ff1618c4276bad53c646686de85", kill_on_drop: false }`
[INFO] [stderr]     Checking hashbrown v0.15.0
[INFO] [stderr]     Checking equivalent v1.0.1
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking indexmap v2.6.0
[INFO] [stderr]     Checking pl4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `fmt::Display`
[INFO] [stdout]  --> src/backend/values.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fmt::Display, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rc::Rc`
[INFO] [stdout]  --> src/backend/natives.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{io::stdin, rc::Rc};
[INFO] [stdout]   |                      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fmt::Display`
[INFO] [stdout]  --> src/backend/values.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fmt::Display, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rc::Rc`
[INFO] [stdout]  --> src/backend/natives.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{io::stdin, rc::Rc};
[INFO] [stdout]   |                      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/backend/compiling/compiler.rs:406:22
[INFO] [stdout]     |
[INFO] [stdout] 406 |                 for (i,element) in  elements.iter().enumerate(){
[INFO] [stdout]     |                      ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty`
[INFO] [stdout]    --> src/backend/compiling/compiler.rs:420:39
[INFO] [stdout]     |
[INFO] [stdout] 420 |             PatternNodeKind::Struct { ty, fields } => {
[INFO] [stdout]     |                                       ^^ help: try ignoring the field: `ty: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `field_name`
[INFO] [stdout]    --> src/backend/compiling/compiler.rs:421:22
[INFO] [stdout]     |
[INFO] [stdout] 421 |                 for (field_name,field_pattern) in fields{
[INFO] [stdout]     |                      ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_field_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `field_pattern`
[INFO] [stdout]    --> src/backend/compiling/compiler.rs:421:33
[INFO] [stdout]     |
[INFO] [stdout] 421 |                 for (field_name,field_pattern) in fields{
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_field_pattern`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/backend/compiling/compiler.rs:406:22
[INFO] [stdout]     |
[INFO] [stdout] 406 |                 for (i,element) in  elements.iter().enumerate(){
[INFO] [stdout]     |                      ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty`
[INFO] [stdout]    --> src/backend/compiling/compiler.rs:420:39
[INFO] [stdout]     |
[INFO] [stdout] 420 |             PatternNodeKind::Struct { ty, fields } => {
[INFO] [stdout]     |                                       ^^ help: try ignoring the field: `ty: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `field_name`
[INFO] [stdout]    --> src/backend/compiling/compiler.rs:421:22
[INFO] [stdout]     |
[INFO] [stdout] 421 |                 for (field_name,field_pattern) in fields{
[INFO] [stdout]     |                      ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_field_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `field_pattern`
[INFO] [stdout]    --> src/backend/compiling/compiler.rs:421:33
[INFO] [stdout]     |
[INFO] [stdout] 421 |                 for (field_name,field_pattern) in fields{
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_field_pattern`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pop_size` is never used
[INFO] [stdout]   --> src/backend/vm.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl VM{
[INFO] [stdout]    | ------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 62 |     fn pop_size(&mut self)->usize{
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `anonymous_var_counter` is never read
[INFO] [stdout]   --> src/backend/compiling/compiler.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub struct Compiler{
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 47 |     anonymous_var_counter:usize
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `emit_pops` and `load_size` are never used
[INFO] [stdout]    --> src/backend/compiling/compiler.rs:245:8
[INFO] [stdout]     |
[INFO] [stdout] 49  | impl Compiler{
[INFO] [stdout]     | ------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 245 |     fn emit_pops(&mut self,n:usize,line:u32){
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 284 |     fn load_size(&mut self,size:usize,line:u32){
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UpvalueResolver` is never constructed
[INFO] [stdout]  --> src/backend/compiling/upvalue_resolver.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct UpvalueResolver{
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `by_ref` is never read
[INFO] [stdout]   --> src/frontend/typechecking/names.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct Variable{
[INFO] [stdout]    |        -------- field in this struct
[INFO] [stdout] 13 |     ty : Type,
[INFO] [stdout] 14 |     by_ref : bool
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Variable` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pop_size` is never used
[INFO] [stdout]   --> src/backend/vm.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl VM{
[INFO] [stdout]    | ------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 62 |     fn pop_size(&mut self)->usize{
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `anonymous_var_counter` is never read
[INFO] [stdout]   --> src/backend/compiling/compiler.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub struct Compiler{
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 47 |     anonymous_var_counter:usize
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `emit_pops` and `load_size` are never used
[INFO] [stdout]    --> src/backend/compiling/compiler.rs:245:8
[INFO] [stdout]     |
[INFO] [stdout] 49  | impl Compiler{
[INFO] [stdout]     | ------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 245 |     fn emit_pops(&mut self,n:usize,line:u32){
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 284 |     fn load_size(&mut self,size:usize,line:u32){
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UpvalueResolver` is never constructed
[INFO] [stdout]  --> src/backend/compiling/upvalue_resolver.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct UpvalueResolver{
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `by_ref` is never read
[INFO] [stdout]   --> src/frontend/typechecking/names.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct Variable{
[INFO] [stdout]    |        -------- field in this struct
[INFO] [stdout] 13 |     ty : Type,
[INFO] [stdout] 14 |     by_ref : bool
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Variable` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.38s
[INFO] running `Command { std: "docker" "inspect" "19f86de9b2c8dd66e260ac0e5aaec5a2330f6ff1618c4276bad53c646686de85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19f86de9b2c8dd66e260ac0e5aaec5a2330f6ff1618c4276bad53c646686de85", kill_on_drop: false }`
[INFO] [stdout] 19f86de9b2c8dd66e260ac0e5aaec5a2330f6ff1618c4276bad53c646686de85