[INFO] fetching crate limtr 0.2.0...
[INFO] testing limtr-0.2.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate limtr 0.2.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate limtr 0.2.0
[INFO] finished tweaking crates.io crate limtr 0.2.0
[INFO] tweaked toml for crates.io crate limtr 0.2.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate limtr 0.2.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 111 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.5.1 (available: v0.7.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8981d5028c49105ecb7b8d6add987641748e89f57bfafa5afeaee76e9eadf20a
[INFO] running `Command { std: "docker" "start" "-a" "8981d5028c49105ecb7b8d6add987641748e89f57bfafa5afeaee76e9eadf20a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8981d5028c49105ecb7b8d6add987641748e89f57bfafa5afeaee76e9eadf20a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8981d5028c49105ecb7b8d6add987641748e89f57bfafa5afeaee76e9eadf20a", kill_on_drop: false }`
[INFO] [stdout] 8981d5028c49105ecb7b8d6add987641748e89f57bfafa5afeaee76e9eadf20a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c0ef8f6bfe31eb4d6ea00cb9f8af27ccc8b1bbc808a8de0dbaeddcc8152ba3db
[INFO] running `Command { std: "docker" "start" "-a" "c0ef8f6bfe31eb4d6ea00cb9f8af27ccc8b1bbc808a8de0dbaeddcc8152ba3db", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling indexmap v2.11.4
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling limtr v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.19s
[INFO] running `Command { std: "docker" "inspect" "c0ef8f6bfe31eb4d6ea00cb9f8af27ccc8b1bbc808a8de0dbaeddcc8152ba3db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0ef8f6bfe31eb4d6ea00cb9f8af27ccc8b1bbc808a8de0dbaeddcc8152ba3db", kill_on_drop: false }`
[INFO] [stdout] c0ef8f6bfe31eb4d6ea00cb9f8af27ccc8b1bbc808a8de0dbaeddcc8152ba3db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a7b319a4feab462479d76b9974adf02361e3a2fb9a87c54d8812f67c3214aa5
[INFO] running `Command { std: "docker" "start" "-a" "1a7b319a4feab462479d76b9974adf02361e3a2fb9a87c54d8812f67c3214aa5", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling half v2.6.0
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling regex-automata v0.4.11
[INFO] [stderr]    Compiling plotters-svg v0.3.7
[INFO] [stderr]    Compiling clap_builder v4.5.48
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling is-terminal v0.4.16
[INFO] [stderr]    Compiling oorandom v11.1.5
[INFO] [stderr]    Compiling anes v0.1.6
[INFO] [stderr]    Compiling indexmap v2.11.4
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling criterion-plot v0.5.0
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling limtr v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling regex v1.11.3
[INFO] [stderr]    Compiling clap v4.5.48
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.5.1
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 20.00s
[INFO] running `Command { std: "docker" "inspect" "1a7b319a4feab462479d76b9974adf02361e3a2fb9a87c54d8812f67c3214aa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a7b319a4feab462479d76b9974adf02361e3a2fb9a87c54d8812f67c3214aa5", kill_on_drop: false }`
[INFO] [stdout] 1a7b319a4feab462479d76b9974adf02361e3a2fb9a87c54d8812f67c3214aa5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 87e07f7716ae8232c4a46937cf946c386c274cdfbd41d7d2758472d76724c9b4
[INFO] running `Command { std: "docker" "start" "-a" "87e07f7716ae8232c4a46937cf946c386c274cdfbd41d7d2758472d76724c9b4", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/limtr-cf4839dbd2f27a76)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::multiple_calls ... ok
[INFO] [stdout] test tests::single_call ... ok
[INFO] [stdout] test tests::block_check ... ok
[INFO] [stdout] test tests::clear_calls ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests limtr
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/core/lim_async.rs - core::lim_async::Limtr::init (line 27) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/core/lim_async.rs - core::lim_async::Limtr::init (line 27) stdout ----
[INFO] [stdout] error[E0277]: the `?` operator can only be applied to values that implement `Try`
[INFO] [stdout]   --> src/core/lim_async.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     Limtr::init(16)?;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^ the `?` operator cannot be applied to type `impl Future<Output = Result<(), limtr::Error>>`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `Try` is not implemented for `impl Future<Output = Result<(), limtr::Error>>`
[INFO] [stdout] note: this implements `Future` and its output type supports `?`, but the future cannot be awaited in a synchronous function
[INFO] [stdout]   --> src/core/lim_async.rs:41:20
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn warmup() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    | ----------------------------------------------------- this is not `async`
[INFO] [stdout] 16 |     Limtr::init(16)?;
[INFO] [stdout]    |                    ^
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/core/lim_async.rs:40:16
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn warmup() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |    ------      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Result<(), Box<dyn Error>>`, found `()`
[INFO] [stdout]    |    |
[INFO] [stdout]    |    implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout] 16 |     Limtr::init(16)?;
[INFO] [stdout]    |                     - help: remove this semicolon to return this value
[INFO] [stdout]    |
[INFO] [stdout]    = note:   expected enum `Result<(), Box<(dyn std::error::Error + 'static)>>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0308.
[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/core/lim_async.rs - core::lim_async::Limtr::init (line 27)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.15s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "87e07f7716ae8232c4a46937cf946c386c274cdfbd41d7d2758472d76724c9b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87e07f7716ae8232c4a46937cf946c386c274cdfbd41d7d2758472d76724c9b4", kill_on_drop: false }`
[INFO] [stdout] 87e07f7716ae8232c4a46937cf946c386c274cdfbd41d7d2758472d76724c9b4
