[INFO] cloning repository https://github.com/mwglen/llvm-frontend
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mwglen/llvm-frontend" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmwglen%2Fllvm-frontend", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmwglen%2Fllvm-frontend'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f9ac8db7e5dd8b4b46b8421f88a2c427dbf11552
[INFO] testing mwglen/llvm-frontend against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmwglen%2Fllvm-frontend" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mwglen/llvm-frontend on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mwglen/llvm-frontend
[INFO] finished tweaking git repo https://github.com/mwglen/llvm-frontend
[INFO] tweaked toml for git repo https://github.com/mwglen/llvm-frontend written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/mwglen/llvm-frontend already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] daae20b9fae2204750a215d1300886f7d4f71f178d01461768a110313f0b8919
[INFO] running `Command { std: "docker" "start" "-a" "daae20b9fae2204750a215d1300886f7d4f71f178d01461768a110313f0b8919", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "daae20b9fae2204750a215d1300886f7d4f71f178d01461768a110313f0b8919", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "daae20b9fae2204750a215d1300886f7d4f71f178d01461768a110313f0b8919", kill_on_drop: false }`
[INFO] [stdout] daae20b9fae2204750a215d1300886f7d4f71f178d01461768a110313f0b8919
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5817943b86eff669afef2075338444bed144dd0c0f9483e8ff2125c72d2c496d
[INFO] running `Command { std: "docker" "start" "-a" "5817943b86eff669afef2075338444bed144dd0c0f9483e8ff2125c72d2c496d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling yaml-rust v0.3.5
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling llvm-sys v100.2.1
[INFO] [stderr]    Compiling llvm-frontend v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::path::Path;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]  --> src/parser.rs:5:14
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn parse(tokens: Vec::<Token>) -> ParseTree {
[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: `tree`
[INFO] [stdout]  --> src/codegen.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn generate(tree: ParseTree) -> String {
[INFO] [stdout]   |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_tree`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `string`
[INFO] [stdout]  --> src/lexer.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn analyze(string: String) -> Vec<Token> {
[INFO] [stdout]   |                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `code`
[INFO] [stdout]  --> src/preprocessor.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn process(code: String) -> String {
[INFO] [stdout]   |                ^^^^ help: if this is intentional, prefix it with an underscore: `_code`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `string`
[INFO] [stdout]  --> src/ir_compiler.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn compile(string: String) -> String {
[INFO] [stdout]   |                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.23s
[INFO] running `Command { std: "docker" "inspect" "5817943b86eff669afef2075338444bed144dd0c0f9483e8ff2125c72d2c496d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5817943b86eff669afef2075338444bed144dd0c0f9483e8ff2125c72d2c496d", kill_on_drop: false }`
[INFO] [stdout] 5817943b86eff669afef2075338444bed144dd0c0f9483e8ff2125c72d2c496d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 01c928ee635ecb744621b8d984bbf2771b4f979dadb18ac62e802e5c1b217bf2
[INFO] running `Command { std: "docker" "start" "-a" "01c928ee635ecb744621b8d984bbf2771b4f979dadb18ac62e802e5c1b217bf2", kill_on_drop: false }`
[INFO] [stderr]    Compiling llvm-frontend v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::path::Path;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]  --> src/parser.rs:5:14
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn parse(tokens: Vec::<Token>) -> ParseTree {
[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: `tree`
[INFO] [stdout]  --> src/codegen.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn generate(tree: ParseTree) -> String {
[INFO] [stdout]   |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_tree`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `string`
[INFO] [stdout]  --> src/lexer.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn analyze(string: String) -> Vec<Token> {
[INFO] [stdout]   |                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `code`
[INFO] [stdout]  --> src/preprocessor.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn process(code: String) -> String {
[INFO] [stdout]   |                ^^^^ help: if this is intentional, prefix it with an underscore: `_code`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `string`
[INFO] [stdout]  --> src/ir_compiler.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn compile(string: String) -> String {
[INFO] [stdout]   |                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "01c928ee635ecb744621b8d984bbf2771b4f979dadb18ac62e802e5c1b217bf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01c928ee635ecb744621b8d984bbf2771b4f979dadb18ac62e802e5c1b217bf2", kill_on_drop: false }`
[INFO] [stdout] 01c928ee635ecb744621b8d984bbf2771b4f979dadb18ac62e802e5c1b217bf2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0b975070fa3520569f1e32de8ef189185b4d418aa4073ba36f4c98a62059a75a
[INFO] running `Command { std: "docker" "start" "-a" "0b975070fa3520569f1e32de8ef189185b4d418aa4073ba36f4c98a62059a75a", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::path::Path`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::path::Path;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tokens`
[INFO] [stderr]  --> src/parser.rs:5:14
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn parse(tokens: Vec::<Token>) -> ParseTree {
[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: `tree`
[INFO] [stderr]  --> src/codegen.rs:4:17
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn generate(tree: ParseTree) -> String {
[INFO] [stderr]   |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_tree`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `string`
[INFO] [stderr]  --> src/lexer.rs:3:16
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn analyze(string: String) -> Vec<Token> {
[INFO] [stderr]   |                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_string`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `code`
[INFO] [stderr]  --> src/preprocessor.rs:1:16
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn process(code: String) -> String {
[INFO] [stderr]   |                ^^^^ help: if this is intentional, prefix it with an underscore: `_code`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `string`
[INFO] [stderr]  --> src/ir_compiler.rs:1:16
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn compile(string: String) -> String {
[INFO] [stderr]   |                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_string`
[INFO] [stderr] 
[INFO] [stderr] warning: `llvm-frontend` (bin "llvm-frontend" test) generated 6 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/llvm_frontend-0953a7acc9ce4dd5)
[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" "0b975070fa3520569f1e32de8ef189185b4d418aa4073ba36f4c98a62059a75a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b975070fa3520569f1e32de8ef189185b4d418aa4073ba36f4c98a62059a75a", kill_on_drop: false }`
[INFO] [stdout] 0b975070fa3520569f1e32de8ef189185b4d418aa4073ba36f4c98a62059a75a