[INFO] fetching crate iodeser 0.6.0...
[INFO] testing iodeser-0.6.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate iodeser 0.6.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate iodeser 0.6.0
[INFO] finished tweaking crates.io crate iodeser 0.6.0
[INFO] tweaked toml for crates.io crate iodeser 0.6.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate iodeser 0.6.0 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] crate crates.io crate iodeser 0.6.0 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-2025-09-21" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 09975f802bd9fa4e186bc5c47f20f03eb5e2544019d852bcee57b04fd47057e1
[INFO] running `Command { std: "docker" "start" "-a" "09975f802bd9fa4e186bc5c47f20f03eb5e2544019d852bcee57b04fd47057e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09975f802bd9fa4e186bc5c47f20f03eb5e2544019d852bcee57b04fd47057e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09975f802bd9fa4e186bc5c47f20f03eb5e2544019d852bcee57b04fd47057e1", kill_on_drop: false }`
[INFO] [stdout] 09975f802bd9fa4e186bc5c47f20f03eb5e2544019d852bcee57b04fd47057e1
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ce3736d3ab1449790634efb2c5b584d8d52cb1972c28adcb4d671d76f154b9f
[INFO] running `Command { std: "docker" "start" "-a" "1ce3736d3ab1449790634efb2c5b584d8d52cb1972c28adcb4d671d76f154b9f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.16
[INFO] [stderr]    Compiling array-init v2.1.0
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.98
[INFO] [stderr]    Compiling io_deser v0.6.0
[INFO] [stderr]    Compiling iodeser v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.23s
[INFO] running `Command { std: "docker" "inspect" "1ce3736d3ab1449790634efb2c5b584d8d52cb1972c28adcb4d671d76f154b9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ce3736d3ab1449790634efb2c5b584d8d52cb1972c28adcb4d671d76f154b9f", kill_on_drop: false }`
[INFO] [stdout] 1ce3736d3ab1449790634efb2c5b584d8d52cb1972c28adcb4d671d76f154b9f
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0cacea9d684591c34207e6c938bf115c4b4797586876981f2700e29ac112118e
[INFO] running `Command { std: "docker" "start" "-a" "0cacea9d684591c34207e6c938bf115c4b4797586876981f2700e29ac112118e", kill_on_drop: false }`
[INFO] [stderr]    Compiling iodeser v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `iodeser::chrono`
[INFO] [stdout]    --> examples/12_chrono.rs:11:14
[INFO] [stdout]     |
[INFO] [stdout]  11 | use iodeser::chrono::{NaiveDate, Utc, DateTime}; // this line would create an error without "chrono" feature on,
[INFO] [stdout]     |              ^^^^^^ could not find `chrono` in `iodeser`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/workdir/src/lib.rs:102:9
[INFO] [stdout]     |
[INFO] [stdout] 101 | #[cfg(feature = "chrono")]
[INFO] [stdout]     |       ------------------ the item is gated behind the `chrono` feature
[INFO] [stdout] 102 | pub use chrono;
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `iodeser` (example "12_chrono") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: struct `Test2` is never constructed
[INFO] [stdout]   --> tests/tuple_structs.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 |     struct Test2{
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0cacea9d684591c34207e6c938bf115c4b4797586876981f2700e29ac112118e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cacea9d684591c34207e6c938bf115c4b4797586876981f2700e29ac112118e", kill_on_drop: false }`
[INFO] [stdout] 0cacea9d684591c34207e6c938bf115c4b4797586876981f2700e29ac112118e