[INFO] cloning repository https://github.com/ironlang/iron
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ironlang/iron" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fironlang%2Firon", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fironlang%2Firon'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2047132614d6e1f39fc30026cb7a7e6c51f76eb5
[INFO] testing ironlang/iron against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fironlang%2Firon" "/workspace/builds/worker-86/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-86/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ironlang/iron on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ironlang/iron
[INFO] finished tweaking git repo https://github.com/ironlang/iron
[INFO] tweaked toml for git repo https://github.com/ironlang/iron written to /workspace/builds/worker-86/source/Cargo.toml
[INFO] crate git repo https://github.com/ironlang/iron already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/TheDan64/inkwell`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded llvm-sys v90.2.0
[INFO] [stderr]   Downloaded syn v1.0.50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 47bde18f42535b5eecf6f72aabcd6bd06e17455cd5b0f34066f430be6abc55f9
[INFO] running `Command { std: "docker" "start" "-a" "47bde18f42535b5eecf6f72aabcd6bd06e17455cd5b0f34066f430be6abc55f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47bde18f42535b5eecf6f72aabcd6bd06e17455cd5b0f34066f430be6abc55f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47bde18f42535b5eecf6f72aabcd6bd06e17455cd5b0f34066f430be6abc55f9", kill_on_drop: false }`
[INFO] [stdout] 47bde18f42535b5eecf6f72aabcd6bd06e17455cd5b0f34066f430be6abc55f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 67d190e16d4d16a03437435a17378752606cf0c4518bfddc31ee9b6c7c4f90af
[INFO] running `Command { std: "docker" "start" "-a" "67d190e16d4d16a03437435a17378752606cf0c4518bfddc31ee9b6c7c4f90af", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling cc v1.0.65
[INFO] [stderr]    Compiling syn v1.0.50
[INFO] [stderr]    Compiling smallvec v1.5.0
[INFO] [stderr]    Compiling iron_ast v0.1.0 (/opt/rustwide/workdir/iron_ast)
[INFO] [stderr]    Compiling inkwell v0.1.0 (https://github.com/TheDan64/inkwell?branch=master#948d2e3a)
[INFO] [stderr]    Compiling iron_lexer v0.1.0 (/opt/rustwide/workdir/iron_lexer)
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling lock_api v0.4.2
[INFO] [stderr]    Compiling iron_codegen v0.1.0 (/opt/rustwide/workdir/iron_codegen)
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling parking_lot_core v0.8.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling iron_parser v0.1.0 (/opt/rustwide/workdir/iron_parser)
[INFO] [stdout] warning: unused import: `crate::parse_tokens`
[INFO] [stdout]  --> iron_parser/src/module.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::parse_tokens;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `iron_ast`
[INFO] [stdout]  --> iron_parser/src/lib.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use iron_ast;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]   --> iron_parser/src/lib.rs:47:28
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn parse_public_definition(tokens: &mut Peekable<IntoIter<Token>>) {
[INFO] [stdout]    |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]   --> iron_parser/src/lib.rs:51:19
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn parse_function(tokens: &mut Peekable<IntoIter<Token>>) {
[INFO] [stdout]    |                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]   --> iron_parser/src/lib.rs:55:17
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn parse_import(tokens: &mut Peekable<IntoIter<Token>>) {
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]   --> iron_parser/src/lib.rs:59:15
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn parse_type(tokens: &mut Peekable<IntoIter<Token>>) {
[INFO] [stdout]    |               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Parameter`
[INFO] [stdout]  --> iron_parser/src/expression.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Parameter {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Value`
[INFO] [stdout]  --> iron_parser/src/expression.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub enum Value {
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Expression`
[INFO] [stdout]   --> iron_parser/src/expression.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum Expression {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Op`
[INFO] [stdout]  --> iron_parser/src/op.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum Op {
[INFO] [stdout]   |          ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling llvm-sys v90.2.0
[INFO] [stderr]    Compiling forge v0.1.0 (/opt/rustwide/workdir/forge)
[INFO] [stderr]    Compiling inkwell_internals v0.2.0 (https://github.com/TheDan64/inkwell?branch=master#948d2e3a)
[INFO] [stderr]    Compiling iron_codegen_llvm v0.1.0 (/opt/rustwide/workdir/iron_codegen_llvm)
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]   --> iron_codegen_llvm/src/lib.rs:10:23
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn compile_module(node: IronASTNode) -> Result<(), IronCodegenError> {
[INFO] [stdout]    |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.78s
[INFO] running `Command { std: "docker" "inspect" "67d190e16d4d16a03437435a17378752606cf0c4518bfddc31ee9b6c7c4f90af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67d190e16d4d16a03437435a17378752606cf0c4518bfddc31ee9b6c7c4f90af", kill_on_drop: false }`
[INFO] [stdout] 67d190e16d4d16a03437435a17378752606cf0c4518bfddc31ee9b6c7c4f90af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b3bfe215223b030c966e8c7bbfd3f6d8cad0bb669520a21b6af33e35a8459852
[INFO] running `Command { std: "docker" "start" "-a" "b3bfe215223b030c966e8c7bbfd3f6d8cad0bb669520a21b6af33e35a8459852", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling iron_lexer v0.1.0 (/opt/rustwide/workdir/iron_lexer)
[INFO] [stderr]    Compiling iron_ast v0.1.0 (/opt/rustwide/workdir/iron_ast)
[INFO] [stderr]    Compiling iron_codegen v0.1.0 (/opt/rustwide/workdir/iron_codegen)
[INFO] [stdout] warning: unused import: `crate::parse_tokens`
[INFO] [stdout]  --> iron_parser/src/module.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::parse_tokens;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling iron_parser v0.1.0 (/opt/rustwide/workdir/iron_parser)
[INFO] [stdout] warning: unused import: `iron_ast`
[INFO] [stdout]  --> iron_parser/src/lib.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use iron_ast;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]   --> iron_parser/src/lib.rs:47:28
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn parse_public_definition(tokens: &mut Peekable<IntoIter<Token>>) {
[INFO] [stdout]    |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]   --> iron_parser/src/lib.rs:51:19
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn parse_function(tokens: &mut Peekable<IntoIter<Token>>) {
[INFO] [stdout]    |                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]   --> iron_parser/src/lib.rs:55:17
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn parse_import(tokens: &mut Peekable<IntoIter<Token>>) {
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]   --> iron_parser/src/lib.rs:59:15
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn parse_type(tokens: &mut Peekable<IntoIter<Token>>) {
[INFO] [stdout]    |               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Parameter`
[INFO] [stdout]  --> iron_parser/src/expression.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Parameter {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Value`
[INFO] [stdout]  --> iron_parser/src/expression.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub enum Value {
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Expression`
[INFO] [stdout]   --> iron_parser/src/expression.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum Expression {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Op`
[INFO] [stdout]  --> iron_parser/src/op.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum Op {
[INFO] [stdout]   |          ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling forge v0.1.0 (/opt/rustwide/workdir/forge)
[INFO] [stderr]    Compiling iron_codegen_llvm v0.1.0 (/opt/rustwide/workdir/iron_codegen_llvm)
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]   --> iron_codegen_llvm/src/lib.rs:10:23
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn compile_module(node: IronASTNode) -> Result<(), IronCodegenError> {
[INFO] [stdout]    |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]   --> iron_codegen_llvm/src/lib.rs:10:23
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn compile_module(node: IronASTNode) -> Result<(), IronCodegenError> {
[INFO] [stdout]    |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::parse_tokens`
[INFO] [stdout]  --> iron_parser/src/module.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::parse_tokens;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `iron_ast`
[INFO] [stdout]  --> iron_parser/src/lib.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use iron_ast;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]   --> iron_parser/src/lib.rs:47:28
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn parse_public_definition(tokens: &mut Peekable<IntoIter<Token>>) {
[INFO] [stdout]    |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]   --> iron_parser/src/lib.rs:51:19
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn parse_function(tokens: &mut Peekable<IntoIter<Token>>) {
[INFO] [stdout]    |                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]   --> iron_parser/src/lib.rs:55:17
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn parse_import(tokens: &mut Peekable<IntoIter<Token>>) {
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]   --> iron_parser/src/lib.rs:59:15
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn parse_type(tokens: &mut Peekable<IntoIter<Token>>) {
[INFO] [stdout]    |               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Parameter`
[INFO] [stdout]  --> iron_parser/src/expression.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Parameter {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Value`
[INFO] [stdout]  --> iron_parser/src/expression.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub enum Value {
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Expression`
[INFO] [stdout]   --> iron_parser/src/expression.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum Expression {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Op`
[INFO] [stdout]  --> iron_parser/src/op.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum Op {
[INFO] [stdout]   |          ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1m 02s
[INFO] running `Command { std: "docker" "inspect" "b3bfe215223b030c966e8c7bbfd3f6d8cad0bb669520a21b6af33e35a8459852", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3bfe215223b030c966e8c7bbfd3f6d8cad0bb669520a21b6af33e35a8459852", kill_on_drop: false }`
[INFO] [stdout] b3bfe215223b030c966e8c7bbfd3f6d8cad0bb669520a21b6af33e35a8459852
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e8036d16909c72ed5758ba5b867c638fd7230cec275bacf04071fc134ad43f70
[INFO] running `Command { std: "docker" "start" "-a" "e8036d16909c72ed5758ba5b867c638fd7230cec275bacf04071fc134ad43f70", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `crate::parse_tokens`
[INFO] [stderr]  --> iron_parser/src/module.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crate::parse_tokens;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `iron_ast`
[INFO] [stderr]  --> iron_parser/src/lib.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use iron_ast;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tokens`
[INFO] [stderr]   --> iron_parser/src/lib.rs:47:28
[INFO] [stderr]    |
[INFO] [stderr] 47 | fn parse_public_definition(tokens: &mut Peekable<IntoIter<Token>>) {
[INFO] [stderr]    |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tokens`
[INFO] [stderr]   --> iron_parser/src/lib.rs:51:19
[INFO] [stderr]    |
[INFO] [stderr] 51 | fn parse_function(tokens: &mut Peekable<IntoIter<Token>>) {
[INFO] [stderr]    |                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tokens`
[INFO] [stderr]   --> iron_parser/src/lib.rs:55:17
[INFO] [stderr]    |
[INFO] [stderr] 55 | fn parse_import(tokens: &mut Peekable<IntoIter<Token>>) {
[INFO] [stderr]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tokens`
[INFO] [stderr]   --> iron_parser/src/lib.rs:59:15
[INFO] [stderr]    |
[INFO] [stderr] 59 | fn parse_type(tokens: &mut Peekable<IntoIter<Token>>) {
[INFO] [stderr]    |               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Parameter`
[INFO] [stderr]  --> iron_parser/src/expression.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct Parameter {
[INFO] [stderr]   |            ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Value`
[INFO] [stderr]  --> iron_parser/src/expression.rs:6:10
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub enum Value {
[INFO] [stderr]   |          ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Expression`
[INFO] [stderr]   --> iron_parser/src/expression.rs:12:10
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub enum Expression {
[INFO] [stderr]    |          ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Op`
[INFO] [stderr]  --> iron_parser/src/op.rs:1:10
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub enum Op {
[INFO] [stderr]   |          ^^
[INFO] [stderr] 
[INFO] [stderr] warning: `iron_parser` (lib) generated 10 warnings
[INFO] [stderr] warning: `iron_parser` (lib test) generated 10 warnings (10 duplicates)
[INFO] [stderr] warning: unused variable: `node`
[INFO] [stderr]   --> iron_codegen_llvm/src/lib.rs:10:23
[INFO] [stderr]    |
[INFO] [stderr] 10 |     fn compile_module(node: IronASTNode) -> Result<(), IronCodegenError> {
[INFO] [stderr]    |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `iron_codegen_llvm` (lib) generated 1 warning
[INFO] [stderr] warning: `iron_codegen_llvm` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/forge-c3575a251ea73a1e)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/iron_ast-29409d5767496f81)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/iron_codegen-91625c680e8697e9)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test ast::tests::test_module ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/iron_codegen_llvm-aca89f39f0f31bc9)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/iron_lexer-fcf2f2ed6c888f36)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test token::keyword::tests::display_impl ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/iron_parser-41c3efcea6a45902)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests iron_ast
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests iron_codegen
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests iron_codegen_llvm
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests iron_lexer
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/into_tokens.rs - into_tokens::String::into_tokens (line 19) ... ok
[INFO] [stderr]    Doc-tests iron_parser
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.26s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e8036d16909c72ed5758ba5b867c638fd7230cec275bacf04071fc134ad43f70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8036d16909c72ed5758ba5b867c638fd7230cec275bacf04071fc134ad43f70", kill_on_drop: false }`
[INFO] [stdout] e8036d16909c72ed5758ba5b867c638fd7230cec275bacf04071fc134ad43f70