[INFO] fetching crate lua_semantics 0.9.0...
[INFO] testing lua_semantics-0.9.0 against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] extracting crate lua_semantics 0.9.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate lua_semantics 0.9.0
[INFO] finished tweaking crates.io crate lua_semantics 0.9.0
[INFO] tweaked toml for crates.io crate lua_semantics 0.9.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate lua_semantics 0.9.0 on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate lua_semantics 0.9.0 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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac8fa04aba137239795b0b1150ca80b58d0d19470cc8ab3775be348dec2d368e
[INFO] running `Command { std: "docker" "start" "-a" "ac8fa04aba137239795b0b1150ca80b58d0d19470cc8ab3775be348dec2d368e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac8fa04aba137239795b0b1150ca80b58d0d19470cc8ab3775be348dec2d368e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac8fa04aba137239795b0b1150ca80b58d0d19470cc8ab3775be348dec2d368e", kill_on_drop: false }`
[INFO] [stdout] ac8fa04aba137239795b0b1150ca80b58d0d19470cc8ab3775be348dec2d368e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f50143fd91c22f2df91a61cf04b3ee83c9068f93efb8201bce4a0165c60a7093
[INFO] running `Command { std: "docker" "start" "-a" "f50143fd91c22f2df91a61cf04b3ee83c9068f93efb8201bce4a0165c60a7093", kill_on_drop: false }`
[INFO] [stderr]    Compiling lua_tokenizer v0.5.0
[INFO] [stderr]    Compiling rusty_lr_core v3.32.0
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling rusty_lr_parser v3.56.0
[INFO] [stderr]    Compiling rusty_lr_derive v2.35.0
[INFO] [stderr]    Compiling rusty_lr v3.27.0
[INFO] [stderr]    Compiling lua_parser v0.10.0
[INFO] [stderr]    Compiling lua_semantics v0.9.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 03s
[INFO] running `Command { std: "docker" "inspect" "f50143fd91c22f2df91a61cf04b3ee83c9068f93efb8201bce4a0165c60a7093", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f50143fd91c22f2df91a61cf04b3ee83c9068f93efb8201bce4a0165c60a7093", kill_on_drop: false }`
[INFO] [stdout] f50143fd91c22f2df91a61cf04b3ee83c9068f93efb8201bce4a0165c60a7093
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a70f59866a0d17bf8457e0c8364a3aa9eb053ef8b3b3d3beea2ee0df31c42a1d
[INFO] running `Command { std: "docker" "start" "-a" "a70f59866a0d17bf8457e0c8364a3aa9eb053ef8b3b3d3beea2ee0df31c42a1d", kill_on_drop: false }`
[INFO] [stderr]    Compiling lua_semantics v0.9.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "a70f59866a0d17bf8457e0c8364a3aa9eb053ef8b3b3d3beea2ee0df31c42a1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a70f59866a0d17bf8457e0c8364a3aa9eb053ef8b3b3d3beea2ee0df31c42a1d", kill_on_drop: false }`
[INFO] [stdout] a70f59866a0d17bf8457e0c8364a3aa9eb053ef8b3b3d3beea2ee0df31c42a1d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f7d9ac68d1a893d415e646c12c0a34a1db03f627b4e15215bf0ccd97933e2ef4
[INFO] running `Command { std: "docker" "start" "-a" "f7d9ac68d1a893d415e646c12c0a34a1db03f627b4e15215bf0ccd97933e2ef4", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/lua_semantics-68c8dd4fb837b84f)
[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 lua_semantics
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 1) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 1) stdout ----
[INFO] [stdout] error: unexpected token: `...`
[INFO] [stdout]  --> src/lib.rs:4:36
[INFO] [stdout]   |
[INFO] [stdout] 6 | let block = lua_parser::parse_str( ... )?;
[INFO] [stdout]   |                                    ^^^
[INFO] [stdout]   |
[INFO] [stdout] help: use `..` for an exclusive range
[INFO] [stdout]   |
[INFO] [stdout] 6 - let block = lua_parser::parse_str( ... )?;
[INFO] [stdout] 6 + let block = lua_parser::parse_str( .. )?;
[INFO] [stdout]   |
[INFO] [stdout] help: or `..=` for an inclusive range
[INFO] [stdout]   |
[INFO] [stdout] 6 - let block = lua_parser::parse_str( ... )?;
[INFO] [stdout] 6 + let block = lua_parser::parse_str( ..= )?;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0586]: inclusive range with no end
[INFO] [stdout]  --> src/lib.rs:4:36
[INFO] [stdout]   |
[INFO] [stdout] 6 | let block = lua_parser::parse_str( ... )?;
[INFO] [stdout]   |                                    ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: inclusive ranges must be bounded at the end (`..=b` or `a..=b`)
[INFO] [stdout] help: use `..` instead
[INFO] [stdout]   |
[INFO] [stdout] 6 - let block = lua_parser::parse_str( ... )?;
[INFO] [stdout] 6 + let block = lua_parser::parse_str( .. )?;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]  --> src/lib.rs:4:41
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_1_0() {
[INFO] [stdout]   |                                      --------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] 5 | // type of `lua_parser::Block`
[INFO] [stdout] 6 | let block = lua_parser::parse_str( ... )?;
[INFO] [stdout]   |                                         ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_1_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 5 | // type of `lua_parser::Block`
[INFO] [stdout] ...
[INFO] [stdout] 9 | let enhanced_ast = lua_semantics::process(block)?;
[INFO] [stdout] 10+     Ok(())
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]  --> src/lib.rs:7:49
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_1_0() {
[INFO] [stdout]   |                                      --------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 9 | let enhanced_ast = lua_semantics::process(block)?;
[INFO] [stdout]   |                                                 ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_1_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 5 | // type of `lua_parser::Block`
[INFO] [stdout] ...
[INFO] [stdout] 9 | let enhanced_ast = lua_semantics::process(block)?;
[INFO] [stdout] 10+     Ok(())
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0586.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 1)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "f7d9ac68d1a893d415e646c12c0a34a1db03f627b4e15215bf0ccd97933e2ef4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7d9ac68d1a893d415e646c12c0a34a1db03f627b4e15215bf0ccd97933e2ef4", kill_on_drop: false }`
[INFO] [stdout] f7d9ac68d1a893d415e646c12c0a34a1db03f627b4e15215bf0ccd97933e2ef4
