[INFO] fetching crate fnerror 0.1.2...
[INFO] testing fnerror-0.1.2 against beta-2025-09-21 for beta-1.91-2
[INFO] extracting crate fnerror 0.1.2 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate fnerror 0.1.2
[INFO] finished tweaking crates.io crate fnerror 0.1.2
[INFO] tweaked toml for crates.io crate fnerror 0.1.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fnerror 0.1.2 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 fnerror 0.1.2 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] 257e95a8558309e4bac841e6adab3a1b3cda1bf54fe056c13d164ee2dabf79d9
[INFO] running `Command { std: "docker" "start" "-a" "257e95a8558309e4bac841e6adab3a1b3cda1bf54fe056c13d164ee2dabf79d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "257e95a8558309e4bac841e6adab3a1b3cda1bf54fe056c13d164ee2dabf79d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "257e95a8558309e4bac841e6adab3a1b3cda1bf54fe056c13d164ee2dabf79d9", kill_on_drop: false }`
[INFO] [stdout] 257e95a8558309e4bac841e6adab3a1b3cda1bf54fe056c13d164ee2dabf79d9
[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] c56e4753f7269db46460de71fb14f5ff2b4fdbf66915ca4e31058c9322f967c7
[INFO] running `Command { std: "docker" "start" "-a" "c56e4753f7269db46460de71fb14f5ff2b4fdbf66915ca4e31058c9322f967c7", kill_on_drop: false }`
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling fnerror v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.17s
[INFO] running `Command { std: "docker" "inspect" "c56e4753f7269db46460de71fb14f5ff2b4fdbf66915ca4e31058c9322f967c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c56e4753f7269db46460de71fb14f5ff2b4fdbf66915ca4e31058c9322f967c7", kill_on_drop: false }`
[INFO] [stdout] c56e4753f7269db46460de71fb14f5ff2b4fdbf66915ca4e31058c9322f967c7
[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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a3eb7cf27a0d44d9ee9df7905353bed0062ed8f1f3a4b074056d97916880f419
[INFO] running `Command { std: "docker" "start" "-a" "a3eb7cf27a0d44d9ee9df7905353bed0062ed8f1f3a4b074056d97916880f419", kill_on_drop: false }`
[INFO] [stderr]    Compiling fnerror v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "a3eb7cf27a0d44d9ee9df7905353bed0062ed8f1f3a4b074056d97916880f419", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3eb7cf27a0d44d9ee9df7905353bed0062ed8f1f3a4b074056d97916880f419", kill_on_drop: false }`
[INFO] [stdout] a3eb7cf27a0d44d9ee9df7905353bed0062ed8f1f3a4b074056d97916880f419
[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" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 29f652f2e40f3893c12f1015431e054d23e2d2a37441335fa4003b27cb8f95af
[INFO] running `Command { std: "docker" "start" "-a" "29f652f2e40f3893c12f1015431e054d23e2d2a37441335fa4003b27cb8f95af", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/fnerror-451775e9273ad2b4)
[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 fnerror
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - fnerror (line 17) ... FAILED
[INFO] [stdout] test src/lib.rs - fnerror (line 42) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - fnerror (line 17) stdout ----
[INFO] [stdout] error[E0658]: attributes on expressions are experimental
[INFO] [stdout]  --> src/lib.rs:22:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |         #[fnerr]
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #15701 <https://github.com/rust-lang/rust/issues/15701> for more information
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: attributes on expressions are experimental
[INFO] [stdout]   --> src/lib.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         #[fnerr]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #15701 <https://github.com/rust-lang/rust/issues/15701> for more information
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `fnerror` in this scope
[INFO] [stdout]  --> src/lib.rs:19:3
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[fnerror]
[INFO] [stdout]   |   ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `fnerror` is imported here, but it is a crate, not an attribute
[INFO] [stdout]  --> src/lib.rs:17:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate r#fnerror;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: consider importing this attribute macro
[INFO] [stdout]   |
[INFO] [stdout] 2 + use fnerror::fnerror;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `fnerr` in this scope
[INFO] [stdout]  --> src/lib.rs:22:11
[INFO] [stdout]   |
[INFO] [stdout] 8 |         #[fnerr]
[INFO] [stdout]   |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `fnerr` in this scope
[INFO] [stdout]   --> src/lib.rs:26:11
[INFO] [stdout]    |
[INFO] [stdout] 12 |         #[fnerr]
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0107]: enum takes 2 generic arguments but 1 generic argument was supplied
[INFO] [stdout]  --> src/lib.rs:20:13
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn foo() -> Result<()> {
[INFO] [stdout]   |             ^^^^^^ -- supplied 1 generic argument
[INFO] [stdout]   |             |
[INFO] [stdout]   |             expected 2 generic arguments
[INFO] [stdout]   |
[INFO] [stdout] help: add missing generic argument
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn foo() -> Result<(), E> {
[INFO] [stdout]   |                      +++
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function, tuple struct or tuple variant `Error2` in this scope
[INFO] [stdout]  --> src/lib.rs:23:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |         Error2("{}", e as String)
[INFO] [stdout]   |         ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function, tuple struct or tuple variant `Error3` in this scope
[INFO] [stdout]   --> src/lib.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |         Error3("{}, {}", e as &'static str, 123 as u8)
[INFO] [stdout]    |         ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0107, E0425, E0658.
[INFO] [stdout] For more information about an error, try `rustc --explain E0107`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - fnerror (line 42) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: could not find `thiserror` in the list of imported crates
[INFO] [stdout]  --> src/lib.rs:43:19
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[derive(Debug, ::thiserror::Error)]
[INFO] [stdout]   |                   ^^^^^^^^^ could not find `thiserror` in the list of imported crates
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `error` in this scope
[INFO] [stdout]  --> src/lib.rs:45:7
[INFO] [stdout]   |
[INFO] [stdout] 5 |     #[error("{}", 0usize)]
[INFO] [stdout]   |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `error` in this scope
[INFO] [stdout]  --> src/lib.rs:47:7
[INFO] [stdout]   |
[INFO] [stdout] 7 |     #[error("{}, {}",0usize, 1usize)]
[INFO] [stdout]   |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `bar` in this scope
[INFO] [stdout]   --> src/lib.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     bar().map_err(|e| FooError::Error2(e))?;
[INFO] [stdout]    |     ^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `baz` in this scope
[INFO] [stdout]   --> src/lib.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     baz().map_err(|e| FooError::Error3(e, 123))?;
[INFO] [stdout]    |     ^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - fnerror (line 17)
[INFO] [stdout]     src/lib.rs - fnerror (line 42)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.18s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.36s; merged doctests compilation took 0.18s
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "29f652f2e40f3893c12f1015431e054d23e2d2a37441335fa4003b27cb8f95af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29f652f2e40f3893c12f1015431e054d23e2d2a37441335fa4003b27cb8f95af", kill_on_drop: false }`
[INFO] [stdout] 29f652f2e40f3893c12f1015431e054d23e2d2a37441335fa4003b27cb8f95af
