[INFO] fetching crate EventEmitter 0.0.4...
[INFO] testing EventEmitter-0.0.4 against beta-2026-01-20 for beta-1.94-1
[INFO] extracting crate EventEmitter 0.0.4 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate EventEmitter 0.0.4
[INFO] finished tweaking crates.io crate EventEmitter 0.0.4
[INFO] tweaked toml for crates.io crate EventEmitter 0.0.4 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate EventEmitter 0.0.4 on toolchain beta-2026-01-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f6782554b8a4ab29ee7c50e579b2e5fa3755cfabe7220eb4611c126756a2144a
[INFO] running `Command { std: "docker" "start" "-a" "f6782554b8a4ab29ee7c50e579b2e5fa3755cfabe7220eb4611c126756a2144a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6782554b8a4ab29ee7c50e579b2e5fa3755cfabe7220eb4611c126756a2144a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6782554b8a4ab29ee7c50e579b2e5fa3755cfabe7220eb4611c126756a2144a", kill_on_drop: false }`
[INFO] [stdout] f6782554b8a4ab29ee7c50e579b2e5fa3755cfabe7220eb4611c126756a2144a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e7d912ff07f4ff033754de94033a58f2f9308af94fb9708239e847857c16db1
[INFO] running `Command { std: "docker" "start" "-a" "7e7d912ff07f4ff033754de94033a58f2f9308af94fb9708239e847857c16db1", kill_on_drop: false }`
[INFO] [stderr]    Compiling EventEmitter v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: crate `EventEmitter` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `event_emitter`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "7e7d912ff07f4ff033754de94033a58f2f9308af94fb9708239e847857c16db1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e7d912ff07f4ff033754de94033a58f2f9308af94fb9708239e847857c16db1", kill_on_drop: false }`
[INFO] [stdout] 7e7d912ff07f4ff033754de94033a58f2f9308af94fb9708239e847857c16db1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac311a40e7656b4b8fac62a8ecea82735456baa683ccbaf6e4673e06af72152f
[INFO] running `Command { std: "docker" "start" "-a" "ac311a40e7656b4b8fac62a8ecea82735456baa683ccbaf6e4673e06af72152f", kill_on_drop: false }`
[INFO] [stdout] warning: crate `EventEmitter` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `event_emitter`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling EventEmitter v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "ac311a40e7656b4b8fac62a8ecea82735456baa683ccbaf6e4673e06af72152f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac311a40e7656b4b8fac62a8ecea82735456baa683ccbaf6e4673e06af72152f", kill_on_drop: false }`
[INFO] [stdout] ac311a40e7656b4b8fac62a8ecea82735456baa683ccbaf6e4673e06af72152f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4a08b7f45c88845f255779030a6d17fc7d59e788034298da9e7febad7f572bb6
[INFO] running `Command { std: "docker" "start" "-a" "4a08b7f45c88845f255779030a6d17fc7d59e788034298da9e7febad7f572bb6", kill_on_drop: false }`
[INFO] [stderr] warning: crate `EventEmitter` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = help: convert the identifier to snake case: `event_emitter`
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `EventEmitter` (lib) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/EventEmitter-7bacc1a5d917deda)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests EventEmitter
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - EventEmitter::new (line 14) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - EventEmitter::new (line 14) stdout ----
[INFO] [stdout] error[E0254]: the name `EventEmitter` is defined multiple times
[INFO] [stdout]   --> src/lib.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | extern crate r#EventEmitter;
[INFO] [stdout]    | ---------------------------- previous import of the extern crate `EventEmitter` here
[INFO] [stdout] 16 | use std::sync::{Arc};
[INFO] [stdout] 17 | use EventEmitter::EventEmitter;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ `EventEmitter` reimported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `EventEmitter` must be defined only once in the type namespace of this module
[INFO] [stdout] help: you can use `as` to change the binding name of the import
[INFO] [stdout]    |
[INFO] [stdout] 17 | use EventEmitter::EventEmitter as OtherEventEmitter;
[INFO] [stdout]    |                                ++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `new` in crate `EventEmitter`
[INFO] [stdout]   --> src/lib.rs:20:33
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let emitter = EventEmitter::new();
[INFO] [stdout]    |                                 ^^^ not found in `EventEmitter`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0254, E0425.
[INFO] [stdout] For more information about an error, try `rustc --explain E0254`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - EventEmitter::new (line 14)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.14s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "4a08b7f45c88845f255779030a6d17fc7d59e788034298da9e7febad7f572bb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a08b7f45c88845f255779030a6d17fc7d59e788034298da9e7febad7f572bb6", kill_on_drop: false }`
[INFO] [stdout] 4a08b7f45c88845f255779030a6d17fc7d59e788034298da9e7febad7f572bb6
