[INFO] fetching crate SerialRust 0.1.0...
[INFO] testing SerialRust-0.1.0 against beta-2026-01-20 for beta-1.94-1
[INFO] extracting crate SerialRust 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate SerialRust 0.1.0
[INFO] finished tweaking crates.io crate SerialRust 0.1.0
[INFO] tweaked toml for crates.io crate SerialRust 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate SerialRust 0.1.0 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] [stderr]     Blocking waiting for file lock on package cache
[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] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f14442535998b21cbdd81d3633dc622ae2bd7328b93686c121667bc3ba360354
[INFO] running `Command { std: "docker" "start" "-a" "f14442535998b21cbdd81d3633dc622ae2bd7328b93686c121667bc3ba360354", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f14442535998b21cbdd81d3633dc622ae2bd7328b93686c121667bc3ba360354", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f14442535998b21cbdd81d3633dc622ae2bd7328b93686c121667bc3ba360354", kill_on_drop: false }`
[INFO] [stdout] f14442535998b21cbdd81d3633dc622ae2bd7328b93686c121667bc3ba360354
[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=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] affca6bf59ce6b9de03c62cc2fdf191a2f72e6066992b6205a3897ae7f8ebd09
[INFO] running `Command { std: "docker" "start" "-a" "affca6bf59ce6b9de03c62cc2fdf191a2f72e6066992b6205a3897ae7f8ebd09", kill_on_drop: false }`
[INFO] [stderr]    Compiling SerialRust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: crate `SerialRust` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `serial_rust`
[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 0.27s
[INFO] running `Command { std: "docker" "inspect" "affca6bf59ce6b9de03c62cc2fdf191a2f72e6066992b6205a3897ae7f8ebd09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "affca6bf59ce6b9de03c62cc2fdf191a2f72e6066992b6205a3897ae7f8ebd09", kill_on_drop: false }`
[INFO] [stdout] affca6bf59ce6b9de03c62cc2fdf191a2f72e6066992b6205a3897ae7f8ebd09
[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=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] d0148b588945280ed11c222f8315e8690a6c9573de7633d8c3a2956440053d2c
[INFO] running `Command { std: "docker" "start" "-a" "d0148b588945280ed11c222f8315e8690a6c9573de7633d8c3a2956440053d2c", kill_on_drop: false }`
[INFO] [stderr]    Compiling SerialRust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: crate `SerialRust` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `serial_rust`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "d0148b588945280ed11c222f8315e8690a6c9573de7633d8c3a2956440053d2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0148b588945280ed11c222f8315e8690a6c9573de7633d8c3a2956440053d2c", kill_on_drop: false }`
[INFO] [stdout] d0148b588945280ed11c222f8315e8690a6c9573de7633d8c3a2956440053d2c
[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=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] 5be1dc493a0356f7dbf3c812a1d2e98d009958f19ac4bfa9d3130c814f97ec7a
[INFO] running `Command { std: "docker" "start" "-a" "5be1dc493a0356f7dbf3c812a1d2e98d009958f19ac4bfa9d3130c814f97ec7a", kill_on_drop: false }`
[INFO] [stderr] warning: crate `SerialRust` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = help: convert the identifier to snake case: `serial_rust`
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `SerialRust` (lib) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/SerialRust-c17ad4aecc90b36f)
[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 SerialRust
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - Bytes (line 80) ... FAILED
[INFO] [stdout] test src/lib.rs - Serialize (line 53) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - Bytes (line 80) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `serialize`
[INFO] [stdout]   --> src/lib.rs:81:5
[INFO] [stdout]    |
[INFO] [stdout] 81 | use serialize::Bytes;
[INFO] [stdout]    |     ^^^^^^^^^ use of unresolved module or unlinked crate `serialize`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `serialize`, use `cargo add serialize` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - Serialize (line 53) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `crate::serialize`
[INFO] [stdout]   --> src/lib.rs:54:12
[INFO] [stdout]    |
[INFO] [stdout] 54 | use crate::serialize::Serialize;
[INFO] [stdout]    |            ^^^^^^^^^ could not find `serialize` in the crate root
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `serialize` found for struct `String` in the current scope
[INFO] [stdout]   --> src/lib.rs:58:28
[INFO] [stdout]    |
[INFO] [stdout] 58 | let bytes = string.clone().serialize();
[INFO] [stdout]    |                            ^^^^^^^^^ method not found in `String`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:66:8
[INFO] [stdout]    |
[INFO] [stdout] 66 |     fn serialize(self) -> Bytes;
[INFO] [stdout]    |        --------- the method is available for `String` here
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `Serialize` which provides `serialize` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]    |
[INFO] [stdout] 53 + use SerialRust::Serialize;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `deserialize` found for struct `String` in the current scope
[INFO] [stdout]   --> src/lib.rs:60:28
[INFO] [stdout]    |
[INFO] [stdout] 60 | let found_string = String::deserialize(&bytes, 0).unwrap();
[INFO] [stdout]    |                            ^^^^^^^^^^^ function or associated item not found in `String`
[INFO] [stdout]    |
[INFO] [stdout] note: if you're trying to build a new `String` consider using one of the following associated functions:
[INFO] [stdout]       String::new
[INFO] [stdout]       String::with_capacity
[INFO] [stdout]       String::try_with_capacity
[INFO] [stdout]       String::from_utf8
[INFO] [stdout]       and 9 others
[INFO] [stdout]   --> /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/alloc/src/string.rs:437:4
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: there is a method `serialize` with a similar name, but with different arguments
[INFO] [stdout]   --> src/lib.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 66 |     fn serialize(self) -> Bytes;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: trait `Serialize` which provides `deserialize` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]    |
[INFO] [stdout] 53 + use SerialRust::Serialize;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - Bytes (line 80)
[INFO] [stdout]     src/lib.rs - Serialize (line 53)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.20s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "5be1dc493a0356f7dbf3c812a1d2e98d009958f19ac4bfa9d3130c814f97ec7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5be1dc493a0356f7dbf3c812a1d2e98d009958f19ac4bfa9d3130c814f97ec7a", kill_on_drop: false }`
[INFO] [stdout] 5be1dc493a0356f7dbf3c812a1d2e98d009958f19ac4bfa9d3130c814f97ec7a
