[INFO] fetching crate fnerror 0.1.4... [INFO] testing fnerror-0.1.4 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7 [INFO] extracting crate fnerror 0.1.4 into /workspace/builds/worker-0-tc1/source [INFO] started tweaking crates.io crate fnerror 0.1.4 [INFO] finished tweaking crates.io crate fnerror 0.1.4 [INFO] tweaked toml for crates.io crate fnerror 0.1.4 written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate fnerror 0.1.4 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate fnerror 0.1.4 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 536f27869e57b6ec568327444721913dd4491d6862e05db2008d24569d85505f [INFO] running `Command { std: "docker" "start" "-a" "536f27869e57b6ec568327444721913dd4491d6862e05db2008d24569d85505f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "536f27869e57b6ec568327444721913dd4491d6862e05db2008d24569d85505f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "536f27869e57b6ec568327444721913dd4491d6862e05db2008d24569d85505f", kill_on_drop: false }` [INFO] [stdout] 536f27869e57b6ec568327444721913dd4491d6862e05db2008d24569d85505f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 17df852bcdc83797d91fab60c9af6afe7759f52bef8ca1974d9a94df00f2c9a7 [INFO] running `Command { std: "docker" "start" "-a" "17df852bcdc83797d91fab60c9af6afe7759f52bef8ca1974d9a94df00f2c9a7", kill_on_drop: false }` [INFO] [stderr] Compiling syn v2.0.106 [INFO] [stderr] Compiling Inflector v0.11.4 [INFO] [stderr] Compiling fnerror v0.1.4 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.48s [INFO] running `Command { std: "docker" "inspect" "17df852bcdc83797d91fab60c9af6afe7759f52bef8ca1974d9a94df00f2c9a7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "17df852bcdc83797d91fab60c9af6afe7759f52bef8ca1974d9a94df00f2c9a7", kill_on_drop: false }` [INFO] [stdout] 17df852bcdc83797d91fab60c9af6afe7759f52bef8ca1974d9a94df00f2c9a7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b217adf65577832bcdd3788bb9ff66fa182c6b6ac2bcc6e96a7835615b4429df [INFO] running `Command { std: "docker" "start" "-a" "b217adf65577832bcdd3788bb9ff66fa182c6b6ac2bcc6e96a7835615b4429df", kill_on_drop: false }` [INFO] [stderr] Compiling fnerror v0.1.4 (/opt/rustwide/workdir) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.83s [INFO] running `Command { std: "docker" "inspect" "b217adf65577832bcdd3788bb9ff66fa182c6b6ac2bcc6e96a7835615b4429df", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b217adf65577832bcdd3788bb9ff66fa182c6b6ac2bcc6e96a7835615b4429df", kill_on_drop: false }` [INFO] [stdout] b217adf65577832bcdd3788bb9ff66fa182c6b6ac2bcc6e96a7835615b4429df [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 7df0d53ced41fc36275ad970b9fb59252be97c0252ec9b9319aa3260cb57b921 [INFO] running `Command { std: "docker" "start" "-a" "7df0d53ced41fc36275ad970b9fb59252be97c0252ec9b9319aa3260cb57b921", kill_on_drop: false }` [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/fnerror-51eba6800dbc2be8) [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 22) ... FAILED [INFO] [stderr] error: doctest failed, to rerun pass `--doc` [INFO] [stdout] test src/lib.rs - fnerror (line 47) ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/lib.rs - fnerror (line 22) stdout ---- [INFO] [stdout] error[E0658]: attributes on expressions are experimental [INFO] [stdout] --> src/lib.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | #[fnerr] [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #15701 for more information [INFO] [stdout] = help: add `#![feature(stmt_expr_attributes)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-11-06; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] error[E0658]: attributes on expressions are experimental [INFO] [stdout] --> src/lib.rs:31:9 [INFO] [stdout] | [INFO] [stdout] 31 | #[fnerr] [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #15701 for more information [INFO] [stdout] = help: add `#![feature(stmt_expr_attributes)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-11-06; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] error: cannot find attribute `fnerror` in this scope [INFO] [stdout] --> src/lib.rs:24:3 [INFO] [stdout] | [INFO] [stdout] 24 | #[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:22:1 [INFO] [stdout] | [INFO] [stdout] 22 | extern crate r#fnerror; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] help: consider importing this attribute macro [INFO] [stdout] | [INFO] [stdout] 21 + use fnerror::fnerror; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] error: cannot find attribute `fnerr` in this scope [INFO] [stdout] --> src/lib.rs:27:11 [INFO] [stdout] | [INFO] [stdout] 27 | #[fnerr] [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] error: cannot find attribute `fnerr` in this scope [INFO] [stdout] --> src/lib.rs:31:11 [INFO] [stdout] | [INFO] [stdout] 31 | #[fnerr] [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `MyError` in this scope [INFO] [stdout] --> src/lib.rs:25:24 [INFO] [stdout] | [INFO] [stdout] 25 | fn foo() -> Result<(), MyError> { [INFO] [stdout] | ^^^^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: you might be missing a type parameter [INFO] [stdout] | [INFO] [stdout] 25 | fn foo() -> Result<(), MyError> { [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:28:9 [INFO] [stdout] | [INFO] [stdout] 28 | 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:32:9 [INFO] [stdout] | [INFO] [stdout] 32 | 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: E0412, E0425, E0658. [INFO] [stdout] For more information about an error, try `rustc --explain E0412`. [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] ---- src/lib.rs - fnerror (line 47) stdout ---- [INFO] [stdout] error[E0433]: failed to resolve: could not find `thiserror` in the list of imported crates [INFO] [stdout] --> src/lib.rs:53:19 [INFO] [stdout] | [INFO] [stdout] 53 | #[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:55:7 [INFO] [stdout] | [INFO] [stdout] 55 | #[error("{}", 0usize)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] error: cannot find attribute `error` in this scope [INFO] [stdout] --> src/lib.rs:57:7 [INFO] [stdout] | [INFO] [stdout] 57 | #[error("{}, {}",0usize, 1usize)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find function `bar` in this scope [INFO] [stdout] --> src/lib.rs:49:5 [INFO] [stdout] | [INFO] [stdout] 49 | bar().map_err(|e| MyError::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:50:5 [INFO] [stdout] | [INFO] [stdout] 50 | baz().map_err(|e| MyError::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 22) [INFO] [stdout] src/lib.rs - fnerror (line 47) [INFO] [stdout] [INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.17s [INFO] [stdout] [INFO] [stdout] all doctests ran in 0.33s; merged doctests compilation took 0.15s [INFO] running `Command { std: "docker" "inspect" "7df0d53ced41fc36275ad970b9fb59252be97c0252ec9b9319aa3260cb57b921", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7df0d53ced41fc36275ad970b9fb59252be97c0252ec9b9319aa3260cb57b921", kill_on_drop: false }` [INFO] [stdout] 7df0d53ced41fc36275ad970b9fb59252be97c0252ec9b9319aa3260cb57b921