[INFO] fetching crate plex 0.3.1...
[INFO] testing plex-0.3.1 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate plex 0.3.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate plex 0.3.1
[INFO] finished tweaking crates.io crate plex 0.3.1
[INFO] tweaked toml for crates.io crate plex 0.3.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate plex 0.3.1 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate plex 0.3.1 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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 763a451af71a834df9a0a193fffa26d8e8e38f7e583302facf452a141ac9846f
[INFO] running `Command { std: "docker" "start" "-a" "763a451af71a834df9a0a193fffa26d8e8e38f7e583302facf452a141ac9846f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "763a451af71a834df9a0a193fffa26d8e8e38f7e583302facf452a141ac9846f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "763a451af71a834df9a0a193fffa26d8e8e38f7e583302facf452a141ac9846f", kill_on_drop: false }`
[INFO] [stdout] 763a451af71a834df9a0a193fffa26d8e8e38f7e583302facf452a141ac9846f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 30910c79911c5b73aaac2cf89ea6241a89b324b89c109dbc2c10cfd4c75c34a6
[INFO] running `Command { std: "docker" "start" "-a" "30910c79911c5b73aaac2cf89ea6241a89b324b89c109dbc2c10cfd4c75c34a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling lalr v0.0.2
[INFO] [stderr]    Compiling syn v2.0.66
[INFO] [stderr]    Compiling bit-set v0.5.3
[INFO] [stderr]    Compiling redfa v0.0.3
[INFO] [stderr]    Compiling plex v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.99s
[INFO] running `Command { std: "docker" "inspect" "30910c79911c5b73aaac2cf89ea6241a89b324b89c109dbc2c10cfd4c75c34a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30910c79911c5b73aaac2cf89ea6241a89b324b89c109dbc2c10cfd4c75c34a6", kill_on_drop: false }`
[INFO] [stdout] 30910c79911c5b73aaac2cf89ea6241a89b324b89c109dbc2c10cfd4c75c34a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dfa99418f2b16cc5804dc1772edf9bb69a58bc7b058569e8481021b6db49ed52
[INFO] running `Command { std: "docker" "start" "-a" "dfa99418f2b16cc5804dc1772edf9bb69a58bc7b058569e8481021b6db49ed52", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.203
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling serde_json v1.0.117
[INFO] [stderr]    Compiling winnow v0.6.11
[INFO] [stderr]    Compiling proc-macro2 v1.0.85
[INFO] [stderr]    Compiling trybuild v1.0.96
[INFO] [stderr]    Compiling lalr v0.0.2
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling bit-set v0.5.3
[INFO] [stderr]    Compiling redfa v0.0.3
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.66
[INFO] [stderr]    Compiling toml_datetime v0.6.6
[INFO] [stderr]    Compiling serde_spanned v0.6.6
[INFO] [stderr]    Compiling toml_edit v0.22.14
[INFO] [stderr]    Compiling serde_derive v1.0.203
[INFO] [stderr]    Compiling plex v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling toml v0.8.14
[INFO] [stdout] warning: field `span` is never read
[INFO] [stdout]    --> examples/demo.rs:114:13
[INFO] [stdout]     |
[INFO] [stdout] 113 |     pub struct Expr {
[INFO] [stdout]     |                ---- field in this struct
[INFO] [stdout] 114 |         pub span: Span,
[INFO] [stdout]     |             ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 32.12s
[INFO] running `Command { std: "docker" "inspect" "dfa99418f2b16cc5804dc1772edf9bb69a58bc7b058569e8481021b6db49ed52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfa99418f2b16cc5804dc1772edf9bb69a58bc7b058569e8481021b6db49ed52", kill_on_drop: false }`
[INFO] [stdout] dfa99418f2b16cc5804dc1772edf9bb69a58bc7b058569e8481021b6db49ed52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0c4c04c249686970e8e28e0bc6888bc59b8e484c6856a71490807a046debda8c
[INFO] running `Command { std: "docker" "start" "-a" "0c4c04c249686970e8e28e0bc6888bc59b8e484c6856a71490807a046debda8c", kill_on_drop: false }`
[INFO] [stderr] warning: field `span` is never read
[INFO] [stderr]    --> examples/demo.rs:114:13
[INFO] [stderr]     |
[INFO] [stderr] 113 |     pub struct Expr {
[INFO] [stderr]     |                ---- field in this struct
[INFO] [stderr] 114 |         pub span: Span,
[INFO] [stderr]     |             ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `plex` (example "demo") generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/plex-d2ab9fb6a100e0a0)
[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 tests/ui.rs (/opt/rustwide/target/debug/deps/ui-70b9e6138dff853d)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Compiling proc-macro2 v1.0.85
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling lalr v0.0.2
[INFO] [stderr]    Compiling bit-set v0.5.3
[INFO] [stderr]    Compiling redfa v0.0.3
[INFO] [stderr]     Checking quote v1.0.36
[INFO] [stderr]     Checking syn v2.0.66
[INFO] [stderr]    Compiling plex v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking plex-tests v0.0.0 (/opt/rustwide/target/tests/trybuild/plex)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.85s
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stdout] test ui ... ok
[INFO] [stderr] test tests/ui/if_else_shift_reduce.rs ... ok
[INFO] [stdout] 
[INFO] [stderr] test tests/ui/reduce_reduce.rs ... ok
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 17.24s
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stderr]    Doc-tests plex
[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" "0c4c04c249686970e8e28e0bc6888bc59b8e484c6856a71490807a046debda8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c4c04c249686970e8e28e0bc6888bc59b8e484c6856a71490807a046debda8c", kill_on_drop: false }`
[INFO] [stdout] 0c4c04c249686970e8e28e0bc6888bc59b8e484c6856a71490807a046debda8c
