[INFO] fetching crate cex_derive 0.5.2... [INFO] testing cex_derive-0.5.2 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7 [INFO] extracting crate cex_derive 0.5.2 into /workspace/builds/worker-3-tc1/source [INFO] started tweaking crates.io crate cex_derive 0.5.2 [INFO] finished tweaking crates.io crate cex_derive 0.5.2 [INFO] tweaked toml for crates.io crate cex_derive 0.5.2 written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate cex_derive 0.5.2 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 7 packages to latest compatible versions [INFO] [stderr] Adding indexmap v1.9.3 (available: v2.12.0) [INFO] [stderr] Adding syn v1.0.109 (available: v2.0.110) [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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 6be99cb422d79fb62f3a42b7b0ac67edfd5bf8f32ebd282acb73b5ffc711fbc7 [INFO] running `Command { std: "docker" "start" "-a" "6be99cb422d79fb62f3a42b7b0ac67edfd5bf8f32ebd282acb73b5ffc711fbc7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6be99cb422d79fb62f3a42b7b0ac67edfd5bf8f32ebd282acb73b5ffc711fbc7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6be99cb422d79fb62f3a42b7b0ac67edfd5bf8f32ebd282acb73b5ffc711fbc7", kill_on_drop: false }` [INFO] [stdout] 6be99cb422d79fb62f3a42b7b0ac67edfd5bf8f32ebd282acb73b5ffc711fbc7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] b52c7adcb169ce4ed8ca50204f6de3c886cee53d1e4c4eef2d0fbf1e9251187d [INFO] running `Command { std: "docker" "start" "-a" "b52c7adcb169ce4ed8ca50204f6de3c886cee53d1e4c4eef2d0fbf1e9251187d", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling indexmap v1.9.3 [INFO] [stderr] Compiling hashbrown v0.12.3 [INFO] [stderr] Compiling cex_derive v0.5.2 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.52s [INFO] running `Command { std: "docker" "inspect" "b52c7adcb169ce4ed8ca50204f6de3c886cee53d1e4c4eef2d0fbf1e9251187d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b52c7adcb169ce4ed8ca50204f6de3c886cee53d1e4c4eef2d0fbf1e9251187d", kill_on_drop: false }` [INFO] [stdout] b52c7adcb169ce4ed8ca50204f6de3c886cee53d1e4c4eef2d0fbf1e9251187d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 96a8bf806e22aeabd9272d50c2345575616f792c79668971dace165374583986 [INFO] running `Command { std: "docker" "start" "-a" "96a8bf806e22aeabd9272d50c2345575616f792c79668971dace165374583986", kill_on_drop: false }` [INFO] [stderr] Compiling cex_derive v0.5.2 (/opt/rustwide/workdir) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1.07s [INFO] running `Command { std: "docker" "inspect" "96a8bf806e22aeabd9272d50c2345575616f792c79668971dace165374583986", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "96a8bf806e22aeabd9272d50c2345575616f792c79668971dace165374583986", kill_on_drop: false }` [INFO] [stdout] 96a8bf806e22aeabd9272d50c2345575616f792c79668971dace165374583986 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 427a75d44dde820b0c1796d0cf306bc273ad00e531edfa2ee4aedac493ebd4e6 [INFO] running `Command { std: "docker" "start" "-a" "427a75d44dde820b0c1796d0cf306bc273ad00e531edfa2ee4aedac493ebd4e6", 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/cex_derive-a3191c77ded7eb8f) [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 cex_derive [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test src/lib.rs - Result (line 639) - compile ... FAILED [INFO] [stdout] test src/lib.rs - Result (line 629) - compile ... FAILED [INFO] [stdout] test src/lib.rs - Result (line 647) - compile ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/lib.rs - Result (line 639) stdout ---- [INFO] [stdout] error: expected `;`, found `}` [INFO] [stdout] --> src/lib.rs:641:62 [INFO] [stdout] | [INFO] [stdout] 641 | let _f = #[cex] || -> Result!( i32 throws String ) {/**/} [INFO] [stdout] | ^ help: add `;` here [INFO] [stdout] 642 | } [INFO] [stdout] | - unexpected token [INFO] [stdout] [INFO] [stdout] error[E0658]: attributes on expressions are experimental [INFO] [stdout] --> src/lib.rs:641:14 [INFO] [stdout] | [INFO] [stdout] 641 | let _f = #[cex] || -> Result!( i32 throws String ) {/**/} [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 `cex` in this scope [INFO] [stdout] --> src/lib.rs:641:16 [INFO] [stdout] | [INFO] [stdout] 641 | let _f = #[cex] || -> Result!( i32 throws String ) {/**/} [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] help: consider importing this attribute macro [INFO] [stdout] | [INFO] [stdout] 639 + use cex_derive::cex; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] error: cannot find macro `Result` in this scope [INFO] [stdout] --> src/lib.rs:641:27 [INFO] [stdout] | [INFO] [stdout] 641 | let _f = #[cex] || -> Result!( i32 throws String ) {/**/} [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Result` is in scope, but it is an enum, not a macro [INFO] [stdout] help: consider importing this macro [INFO] [stdout] | [INFO] [stdout] 639 + use cex_derive::Result; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] error: aborting due to 4 previous errors [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0658`. [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] ---- src/lib.rs - Result (line 629) stdout ---- [INFO] [stdout] error: cannot find attribute `cex` in this scope [INFO] [stdout] --> src/lib.rs:634:3 [INFO] [stdout] | [INFO] [stdout] 634 | #[cex] fn foo() -> Result!( i32 throws String, &'static str, SomeError ) {/**/} [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] help: consider importing this attribute macro [INFO] [stdout] | [INFO] [stdout] 629 + use cex_derive::cex; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] error: cannot find macro `Result` in this scope [INFO] [stdout] --> src/lib.rs:634:20 [INFO] [stdout] | [INFO] [stdout] 634 | #[cex] fn foo() -> Result!( i32 throws String, &'static str, SomeError ) {/**/} [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Result` is in scope, but it is an enum, not a macro [INFO] [stdout] help: consider importing this macro [INFO] [stdout] | [INFO] [stdout] 629 + use cex_derive::Result; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] error: cannot find attribute `cex` in this scope [INFO] [stdout] --> src/lib.rs:630:3 [INFO] [stdout] | [INFO] [stdout] 630 | #[cex] fn throws_never() -> Result!(i32) {/**/} [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] help: consider importing this attribute macro [INFO] [stdout] | [INFO] [stdout] 629 + use cex_derive::cex; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] error: cannot find macro `Result` in this scope [INFO] [stdout] --> src/lib.rs:630:29 [INFO] [stdout] | [INFO] [stdout] 630 | #[cex] fn throws_never() -> Result!(i32) {/**/} [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Result` is in scope, but it is an enum, not a macro [INFO] [stdout] help: consider importing this macro [INFO] [stdout] | [INFO] [stdout] 629 + use cex_derive::Result; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] error: aborting due to 4 previous errors [INFO] [stdout] [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] ---- src/lib.rs - Result (line 647) stdout ---- [INFO] [stdout] error: cannot find attribute `cex` in this scope [INFO] [stdout] --> src/lib.rs:649:7 [INFO] [stdout] | [INFO] [stdout] 649 | #[cex] let v: Result!( i32 throws String ) = try {/**/}; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] help: consider importing this attribute macro [INFO] [stdout] | [INFO] [stdout] 647 + use cex_derive::cex; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] error: cannot find macro `Result` in this scope [INFO] [stdout] --> src/lib.rs:649:19 [INFO] [stdout] | [INFO] [stdout] 649 | #[cex] let v: Result!( i32 throws String ) = try {/**/}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Result` is in scope, but it is an enum, not a macro [INFO] [stdout] help: consider importing this macro [INFO] [stdout] | [INFO] [stdout] 647 + use cex_derive::Result; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] error[E0658]: `try` expression is experimental [INFO] [stdout] --> src/lib.rs:649:50 [INFO] [stdout] | [INFO] [stdout] 649 | #[cex] let v: Result!( i32 throws String ) = try {/**/}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #31436 for more information [INFO] [stdout] = help: add `#![feature(try_blocks)]` 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[E0277]: a `try` block must return `Result` or `Option` (or another type that implements `Try`) [INFO] [stdout] --> src/lib.rs:649:59 [INFO] [stdout] | [INFO] [stdout] 649 | #[cex] let v: Result!( i32 throws String ) = try {/**/}; [INFO] [stdout] | ^ could not wrap the final value of the block as `()` doesn't implement `Try` [INFO] [stdout] | [INFO] [stdout] = help: the trait `Try` is not implemented for `()` [INFO] [stdout] [INFO] [stdout] error: aborting due to 4 previous errors [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0277, E0658. [INFO] [stdout] For more information about an error, try `rustc --explain E0277`. [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] src/lib.rs - Result (line 629) [INFO] [stdout] src/lib.rs - Result (line 639) [INFO] [stdout] src/lib.rs - Result (line 647) [INFO] [stdout] [INFO] [stdout] test result: FAILED. 0 passed; 3 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.25s [INFO] [stdout] [INFO] [stderr] error: doctest failed, to rerun pass `--doc` [INFO] running `Command { std: "docker" "inspect" "427a75d44dde820b0c1796d0cf306bc273ad00e531edfa2ee4aedac493ebd4e6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "427a75d44dde820b0c1796d0cf306bc273ad00e531edfa2ee4aedac493ebd4e6", kill_on_drop: false }` [INFO] [stdout] 427a75d44dde820b0c1796d0cf306bc273ad00e531edfa2ee4aedac493ebd4e6