[INFO] fetching crate serde_cef 0.1.0...
[INFO] testing serde_cef-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate serde_cef 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate serde_cef 0.1.0
[INFO] finished tweaking crates.io crate serde_cef 0.1.0
[INFO] tweaked toml for crates.io crate serde_cef 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde_cef 0.1.0 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 46 packages to latest compatible versions
[INFO] [stderr]       Adding serde-value v0.6.0 (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] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] d5e30bcd626ba3a3760af0a6f7895d277fa9605ef117471fea57af5bf8d9c70b
[INFO] running `Command { std: "docker" "start" "-a" "d5e30bcd626ba3a3760af0a6f7895d277fa9605ef117471fea57af5bf8d9c70b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d5e30bcd626ba3a3760af0a6f7895d277fa9605ef117471fea57af5bf8d9c70b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5e30bcd626ba3a3760af0a6f7895d277fa9605ef117471fea57af5bf8d9c70b", kill_on_drop: false }`
[INFO] [stdout] d5e30bcd626ba3a3760af0a6f7895d277fa9605ef117471fea57af5bf8d9c70b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] f65c01dfbef67d4c6e8efa42d849a274fe4f97c377163534922af5ce0ce91418
[INFO] running `Command { std: "docker" "start" "-a" "f65c01dfbef67d4c6e8efa42d849a274fe4f97c377163534922af5ce0ce91418", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling regex-syntax v0.8.6
[INFO] [stderr]    Compiling iana-time-zone v0.1.64
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling ordered-float v1.1.1
[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling regex-automata v0.4.11
[INFO] [stderr]    Compiling serde-value v0.6.0
[INFO] [stderr]    Compiling serde-value-flatten v0.1.0
[INFO] [stderr]    Compiling regex v1.11.3
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling serde_cef v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: could not find `export` in `serde`
[INFO] [stdout]  --> src/de.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | use serde::export::fmt::Debug;
[INFO] [stdout]   |            ^^^^^^ could not find `export` in `serde`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `NoneError` in module `std::option`
[INFO] [stdout]   --> src/result.rs:89:24
[INFO] [stdout]    |
[INFO] [stdout] 89 | impl From<std::option::NoneError> for CefError {
[INFO] [stdout]    |                        ^^^^^^^^^ not found in `std::option`
[INFO] [stdout]    |
[INFO] [stdout] help: there is an enum variant `crate::CefError::NoneError`; try using the variant's enum
[INFO] [stdout]    |
[INFO] [stdout] 89 - impl From<std::option::NoneError> for CefError {
[INFO] [stdout] 89 + impl From<crate::CefError> for CefError {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `NoneError` in module `std::option`
[INFO] [stdout]   --> src/result.rs:90:32
[INFO] [stdout]    |
[INFO] [stdout] 90 |     fn from(_err: std::option::NoneError) -> CefError {
[INFO] [stdout]    |                                ^^^^^^^^^ not found in `std::option`
[INFO] [stdout]    |
[INFO] [stdout] help: there is an enum variant `crate::CefError::NoneError`; try using the variant's enum
[INFO] [stdout]    |
[INFO] [stdout] 90 -     fn from(_err: std::option::NoneError) -> CefError {
[INFO] [stdout] 90 +     fn from(_err: crate::CefError) -> CefError {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:93:1
[INFO] [stdout]    |
[INFO] [stdout] 93 | #![feature(try_trait)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Cursor` and `Write`
[INFO] [stdout]  --> src/ser.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{Cursor, Write};
[INFO] [stdout]   |               ^^^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: feature `try_trait` has been renamed to `try_trait_v2`
[INFO] [stdout]   --> src/lib.rs:93:12
[INFO] [stdout]    |
[INFO] [stdout] 93 | #![feature(try_trait)]
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0433, E0554, E0635.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `serde_cef` (lib) due to 5 previous errors; 1 warning emitted
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f65c01dfbef67d4c6e8efa42d849a274fe4f97c377163534922af5ce0ce91418", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f65c01dfbef67d4c6e8efa42d849a274fe4f97c377163534922af5ce0ce91418", kill_on_drop: false }`
[INFO] [stdout] f65c01dfbef67d4c6e8efa42d849a274fe4f97c377163534922af5ce0ce91418
