[INFO] fetching crate rmpp 0.1.10...
[INFO] testing rmpp-0.1.10 against beta-2026-03-05 for beta-1.95-1
[INFO] extracting crate rmpp 0.1.10 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate rmpp 0.1.10
[INFO] finished tweaking crates.io crate rmpp 0.1.10
[INFO] tweaked toml for crates.io crate rmpp 0.1.10 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rmpp 0.1.10 on toolchain beta-2026-03-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rmpp 0.1.10 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-2026-03-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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-2026-03-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fb2e5b9789d708744d6a3f997e5ae9be39b20f2d3e9bba844c4056e8230dc436
[INFO] running `Command { std: "docker" "start" "-a" "fb2e5b9789d708744d6a3f997e5ae9be39b20f2d3e9bba844c4056e8230dc436", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb2e5b9789d708744d6a3f997e5ae9be39b20f2d3e9bba844c4056e8230dc436", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb2e5b9789d708744d6a3f997e5ae9be39b20f2d3e9bba844c4056e8230dc436", kill_on_drop: false }`
[INFO] [stdout] fb2e5b9789d708744d6a3f997e5ae9be39b20f2d3e9bba844c4056e8230dc436
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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-2026-03-05" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bce633a947187de7eb6e7d980129b05c76d42b0879ef134f6d0114ea90b38d16
[INFO] running `Command { std: "docker" "start" "-a" "bce633a947187de7eb6e7d980129b05c76d42b0879ef134f6d0114ea90b38d16", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.103
[INFO] [stderr]    Compiling serde_core v1.0.225
[INFO] [stderr]    Compiling bumpalo v3.19.0
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling serde v1.0.225
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]    Compiling itoa v1.0.15
[INFO] [stderr]    Compiling wasm-bindgen v0.2.103
[INFO] [stderr]    Compiling ryu v1.0.20
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling cfg-if v1.0.3
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling rmp v0.8.14
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.103
[INFO] [stderr]    Compiling serde_derive v1.0.225
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.103
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.103
[INFO] [stderr]    Compiling rmpp v0.1.10 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.93s
[INFO] running `Command { std: "docker" "inspect" "bce633a947187de7eb6e7d980129b05c76d42b0879ef134f6d0114ea90b38d16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bce633a947187de7eb6e7d980129b05c76d42b0879ef134f6d0114ea90b38d16", kill_on_drop: false }`
[INFO] [stdout] bce633a947187de7eb6e7d980129b05c76d42b0879ef134f6d0114ea90b38d16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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-2026-03-05" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b98fcd8e19b43f5857f89ccdc1934f1e1b6e723a5b3ab8501b947679f5105ca0
[INFO] running `Command { std: "docker" "start" "-a" "b98fcd8e19b43f5857f89ccdc1934f1e1b6e723a5b3ab8501b947679f5105ca0", kill_on_drop: false }`
[INFO] [stderr]    Compiling rmpp v0.1.10 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "b98fcd8e19b43f5857f89ccdc1934f1e1b6e723a5b3ab8501b947679f5105ca0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b98fcd8e19b43f5857f89ccdc1934f1e1b6e723a5b3ab8501b947679f5105ca0", kill_on_drop: false }`
[INFO] [stdout] b98fcd8e19b43f5857f89ccdc1934f1e1b6e723a5b3ab8501b947679f5105ca0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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-2026-03-05" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ce2db80d5d818b6782b2dfdf1d8b4a9022269addc7190bb2e108939c92b5c180
[INFO] running `Command { std: "docker" "start" "-a" "ce2db80d5d818b6782b2dfdf1d8b4a9022269addc7190bb2e108939c92b5c180", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rmpp-9e0e771792d99a2d)
[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 rmpp
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test src/../README.md - (line 13) ... FAILED
[INFO] [stdout] test src/../README.md - (line 26) ... FAILED
[INFO] [stdout] test src/decode.rs - decode::unpack (line 34) ... ok
[INFO] [stdout] test src/encode.rs - encode::pack_json (line 10) ... ok
[INFO] [stdout] test src/decode.rs - decode::unpack_json (line 12) ... ok
[INFO] [stdout] test src/decode.rs - decode::_::__wasm_bindgen_generated_unpack_json (line 12) ... ok
[INFO] [stdout] test src/encode.rs - encode::pack (line 37) ... ok
[INFO] [stdout] test src/encode.rs - encode::_::__wasm_bindgen_generated_pack_json (line 10) ... ok
[INFO] [stdout] test src/encode.rs - encode::write_value (line 58) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/../README.md - (line 13) 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/../README.md:23:65
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src____README_md_13_0() {
[INFO] [stdout]    |                                      ---------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 23 | let json_string: String = rmpp::unpack_json(&binary, Some(true))?;
[INFO] [stdout]    |                                                                 ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout] 14 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src____README_md_13_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 15 | use rmpp;
[INFO] [stdout] ...
[INFO] [stdout] 23 | let json_string: String = rmpp::unpack_json(&binary, Some(true))?;
[INFO] [stdout] 24 +     Ok(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/../README.md - (line 26) stdout ----
[INFO] [stdout] error[E0425]: cannot find value `json` in this scope
[INFO] [stdout]   --> src/../README.md:41:36
[INFO] [stdout]    |
[INFO] [stdout] 41 | let vec: Vec<u8> = rmpp::pack_json(json);
[INFO] [stdout]    |                                    ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/../README.md:30:25
[INFO] [stdout]    |
[INFO] [stdout] 30 |   let rmpp_json: String = r###"
[INFO] [stdout]    |  ________________------___^
[INFO] [stdout]    | |                |
[INFO] [stdout]    | |                expected due to this
[INFO] [stdout] 31 | | {
[INFO] [stdout] 32 | |     "raw_marker": 195,
[INFO] [stdout] 33 | |     "basic_type": "Bool",
[INFO] [stdout] ...  |
[INFO] [stdout] 39 | | "###;
[INFO] [stdout]    | |____^ expected `String`, found `&str`
[INFO] [stdout]    |
[INFO] [stdout] help: try using a conversion method
[INFO] [stdout]    |
[INFO] [stdout] 39 | "###.to_string();
[INFO] [stdout]    |     ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0425.
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/../README.md - (line 13)
[INFO] [stdout]     src/../README.md - (line 26)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 7 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.80s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 1.00s; merged doctests compilation took 0.20s
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "ce2db80d5d818b6782b2dfdf1d8b4a9022269addc7190bb2e108939c92b5c180", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce2db80d5d818b6782b2dfdf1d8b4a9022269addc7190bb2e108939c92b5c180", kill_on_drop: false }`
[INFO] [stdout] ce2db80d5d818b6782b2dfdf1d8b4a9022269addc7190bb2e108939c92b5c180
