[INFO] cloning repository https://github.com/pandemonium/sylt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pandemonium/sylt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpandemonium%2Fsylt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpandemonium%2Fsylt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 90d39897c2bb9811c62735c630874a56876af318
[INFO] testing pandemonium/sylt against master#1871252fc8bb672d40787e67404e6eaae7059369 for pr-125151
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpandemonium%2Fsylt" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pandemonium/sylt on toolchain 1871252fc8bb672d40787e67404e6eaae7059369
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pandemonium/sylt
[INFO] finished tweaking git repo https://github.com/pandemonium/sylt
[INFO] tweaked toml for git repo https://github.com/pandemonium/sylt written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/pandemonium/sylt 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" "+1871252fc8bb672d40787e67404e6eaae7059369" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae8669a758943fc76fb95bdba2cb8c65e018ac7207ec26c5332f144bd4ed7137
[INFO] running `Command { std: "docker" "start" "-a" "ae8669a758943fc76fb95bdba2cb8c65e018ac7207ec26c5332f144bd4ed7137", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae8669a758943fc76fb95bdba2cb8c65e018ac7207ec26c5332f144bd4ed7137", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae8669a758943fc76fb95bdba2cb8c65e018ac7207ec26c5332f144bd4ed7137", kill_on_drop: false }`
[INFO] [stdout] ae8669a758943fc76fb95bdba2cb8c65e018ac7207ec26c5332f144bd4ed7137
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c25342458e84bdd6b4d28e1b1f9665bb62cc820e1556d58bdd376ad430963a7
[INFO] running `Command { std: "docker" "start" "-a" "4c25342458e84bdd6b4d28e1b1f9665bb62cc820e1556d58bdd376ad430963a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling sylt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `element`
[INFO] [stdout]    --> src/runtime/ast/interpreter.rs:170:66
[INFO] [stdout]     |
[INFO] [stdout] 170 |             ast::Expression::PutArrayElement { array, subscript, element } => {
[INFO] [stdout]     |                                                                  ^^^^^^^ help: try ignoring the field: `element: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `array`
[INFO] [stdout]    --> src/runtime/ast/interpreter.rs:277:21
[INFO] [stdout]     |
[INFO] [stdout] 277 |                     array,
[INFO] [stdout]     |                     ^^^^^ help: try ignoring the field: `array: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `subscript`
[INFO] [stdout]    --> src/runtime/ast/interpreter.rs:278:21
[INFO] [stdout]     |
[INFO] [stdout] 278 |                     subscript,
[INFO] [stdout]     |                     ^^^^^^^^^ help: try ignoring the field: `subscript: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/runtime/ast/interpreter.rs:279:21
[INFO] [stdout]     |
[INFO] [stdout] 279 |                     rhs,
[INFO] [stdout]     |                     ^^^ help: try ignoring the field: `rhs: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `array`
[INFO] [stdout]    --> src/runtime/bytecode/compiler.rs:156:43
[INFO] [stdout]     |
[INFO] [stdout] 156 |             ast::Statement::ArrayUpdate { array, subscript, rhs } => {
[INFO] [stdout]     |                                           ^^^^^ help: try ignoring the field: `array: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `subscript`
[INFO] [stdout]    --> src/runtime/bytecode/compiler.rs:156:50
[INFO] [stdout]     |
[INFO] [stdout] 156 |             ast::Statement::ArrayUpdate { array, subscript, rhs } => {
[INFO] [stdout]     |                                                  ^^^^^^^^^ help: try ignoring the field: `subscript: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/runtime/bytecode/compiler.rs:156:61
[INFO] [stdout]     |
[INFO] [stdout] 156 |             ast::Statement::ArrayUpdate { array, subscript, rhs } => {
[INFO] [stdout]     |                                                             ^^^ help: try ignoring the field: `rhs: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `types_unify` and `put_array_element` are never used
[INFO] [stdout]    --> src/runtime/ast/interpreter.rs:87:8
[INFO] [stdout]     |
[INFO] [stdout] 51  | impl<'a> ActivationFrame<'a> {
[INFO] [stdout]     | ---------------------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 87  |     fn types_unify(lhs: &ast::Type, rhs: &ast::Type) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 223 |     fn put_array_element(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `array_get_element` is never used
[INFO] [stdout]    --> src/syntax.rs:230:4
[INFO] [stdout]     |
[INFO] [stdout] 230 | fn array_get_element() -> impl Parser<In = lex::Token, Out = ast::Expression> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sylt` (lib); 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1871252fc8bb672d40787e67404e6eaae7059369/bin/rustc --crate-name sylt --edition=2021 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --check-cfg 'cfg(docsrs)' --check-cfg 'cfg(feature, values())' -C metadata=69c602b84769ffac -C extra-filename=-69c602b84769ffac --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "4c25342458e84bdd6b4d28e1b1f9665bb62cc820e1556d58bdd376ad430963a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c25342458e84bdd6b4d28e1b1f9665bb62cc820e1556d58bdd376ad430963a7", kill_on_drop: false }`
[INFO] [stdout] 4c25342458e84bdd6b4d28e1b1f9665bb62cc820e1556d58bdd376ad430963a7