[INFO] cloning repository https://github.com/shunlingsmile/err-handler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shunlingsmile/err-handler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshunlingsmile%2Ferr-handler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshunlingsmile%2Ferr-handler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 966257dacbcc089ecab13a8509c4a05ca4e365ce
[INFO] testing shunlingsmile/err-handler against beta-2026-03-05 for beta-1.95-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshunlingsmile%2Ferr-handler" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/shunlingsmile/err-handler
[INFO] finished tweaking git repo https://github.com/shunlingsmile/err-handler
[INFO] tweaked toml for git repo https://github.com/shunlingsmile/err-handler written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/shunlingsmile/err-handler 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 git repo https://github.com/shunlingsmile/err-handler 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 51c08797b91a091114682582375071f39fcd3487875c2e334d7a1c8eae3e9cd7
[INFO] running `Command { std: "docker" "start" "-a" "51c08797b91a091114682582375071f39fcd3487875c2e334d7a1c8eae3e9cd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51c08797b91a091114682582375071f39fcd3487875c2e334d7a1c8eae3e9cd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51c08797b91a091114682582375071f39fcd3487875c2e334d7a1c8eae3e9cd7", kill_on_drop: false }`
[INFO] [stdout] 51c08797b91a091114682582375071f39fcd3487875c2e334d7a1c8eae3e9cd7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] bc1288493a5ec1323f533abbebbfbf264107178fe8c5de530ca64d56b7a48342
[INFO] running `Command { std: "docker" "start" "-a" "bc1288493a5ec1323f533abbebbfbf264107178fe8c5de530ca64d56b7a48342", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling err-handler v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.32s
[INFO] running `Command { std: "docker" "inspect" "bc1288493a5ec1323f533abbebbfbf264107178fe8c5de530ca64d56b7a48342", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc1288493a5ec1323f533abbebbfbf264107178fe8c5de530ca64d56b7a48342", kill_on_drop: false }`
[INFO] [stdout] bc1288493a5ec1323f533abbebbfbf264107178fe8c5de530ca64d56b7a48342
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] badd7d988d2af655ad05362b16e1150c56a1001e5d8e24c94ba63b21892c87d9
[INFO] running `Command { std: "docker" "start" "-a" "badd7d988d2af655ad05362b16e1150c56a1001e5d8e24c94ba63b21892c87d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling thiserror v1.0.58
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]    Compiling err-handler v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `Err2` is never constructed
[INFO] [stdout]  --> examples/exp.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | enum Err {
[INFO] [stdout]   |      --- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 9 |     Err2,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Err` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 7.13s
[INFO] running `Command { std: "docker" "inspect" "badd7d988d2af655ad05362b16e1150c56a1001e5d8e24c94ba63b21892c87d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "badd7d988d2af655ad05362b16e1150c56a1001e5d8e24c94ba63b21892c87d9", kill_on_drop: false }`
[INFO] [stdout] badd7d988d2af655ad05362b16e1150c56a1001e5d8e24c94ba63b21892c87d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 4215c912a5a9eed2828f0d98b7928ba58a491c5c9a069d3fc482c5756f8118f3
[INFO] running `Command { std: "docker" "start" "-a" "4215c912a5a9eed2828f0d98b7928ba58a491c5c9a069d3fc482c5756f8118f3", kill_on_drop: false }`
[INFO] [stderr] warning: variant `Err2` is never constructed
[INFO] [stderr]  --> examples/exp.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | enum Err {
[INFO] [stderr]   |      --- variant in this enum
[INFO] [stderr] ...
[INFO] [stderr] 9 |     Err2,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Err` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `err-handler` (example "exp") generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/err_handler-257739360fdff72f)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests err_handler
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 8) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 8) stdout ----
[INFO] [stdout] error[E0433]: cannot find module or crate `tokio` in this scope
[INFO] [stdout]   --> src/lib.rs:41:3
[INFO] [stdout]    |
[INFO] [stdout] 41 | #[tokio::main]
[INFO] [stdout]    |   ^^^^^ use of unresolved module or unlinked crate `tokio`
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]   --> src/lib.rs:42:1
[INFO] [stdout]    |
[INFO] [stdout] 42 | async fn main() -> Result<(), Err> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0752.
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 8)
[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" "4215c912a5a9eed2828f0d98b7928ba58a491c5c9a069d3fc482c5756f8118f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4215c912a5a9eed2828f0d98b7928ba58a491c5c9a069d3fc482c5756f8118f3", kill_on_drop: false }`
[INFO] [stdout] 4215c912a5a9eed2828f0d98b7928ba58a491c5c9a069d3fc482c5756f8118f3
