[INFO] fetching crate cex 0.5.2... [INFO] checking cex-0.5.2 against f99a7560a6b5f0a5e6894aea7e8afe0e01d3edd1 for pr-160235-1 [INFO] extracting crate cex 0.5.2 into /workspace/builds/worker-0-tc2/source [INFO] started tweaking crates.io crate cex 0.5.2 [INFO] finished tweaking crates.io crate cex 0.5.2 [INFO] tweaked toml for crates.io crate cex 0.5.2 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate cex 0.5.2 on toolchain f99a7560a6b5f0a5e6894aea7e8afe0e01d3edd1 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f99a7560a6b5f0a5e6894aea7e8afe0e01d3edd1" "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" "+f99a7560a6b5f0a5e6894aea7e8afe0e01d3edd1" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 10 packages to highest compatible versions [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f99a7560a6b5f0a5e6894aea7e8afe0e01d3edd1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: explicit `package.readme` can be inferred [INFO] [stderr] --> Cargo.toml:23:1 [INFO] [stderr] | [INFO] [stderr] 23 | readme = "README.md" [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `cargo::manual_readme` is set to `warn` by default [INFO] [stderr] help: consider removing `package.readme` [INFO] [stderr] warning: `cex` (manifest) generated 1 warning [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }` [INFO] [stdout] 0c481e778b1a240f65e10ee6ca52072b5c257a204761c17e704c579c7aa0a55f [INFO] running `Command { std: "docker" "start" "0c481e778b1a240f65e10ee6ca52072b5c257a204761c17e704c579c7aa0a55f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0c481e778b1a240f65e10ee6ca52072b5c257a204761c17e704c579c7aa0a55f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "0c481e778b1a240f65e10ee6ca52072b5c257a204761c17e704c579c7aa0a55f" "/opt/rustwide/cargo-home/bin/cargo" "+f99a7560a6b5f0a5e6894aea7e8afe0e01d3edd1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0c481e778b1a240f65e10ee6ca52072b5c257a204761c17e704c579c7aa0a55f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "0c481e778b1a240f65e10ee6ca52072b5c257a204761c17e704c579c7aa0a55f" "/opt/rustwide/cargo-home/bin/cargo" "+f99a7560a6b5f0a5e6894aea7e8afe0e01d3edd1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] warning: explicit `package.readme` can be inferred [INFO] [stderr] --> Cargo.toml:23:1 [INFO] [stderr] | [INFO] [stderr] 23 | readme = "README.md" [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `cargo::manual_readme` is set to `warn` by default [INFO] [stderr] help: consider removing `package.readme` [INFO] [stderr] warning: `cex` (manifest) generated 1 warning [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling hashbrown v0.12.3 [INFO] [stderr] Compiling indexmap v1.9.3 [INFO] [stderr] Compiling enumx_derive v0.4.2 [INFO] [stderr] Compiling cex_derive v0.5.2 [INFO] [stderr] Checking enumx v0.4.3 [INFO] [stderr] Checking cex v0.5.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: `try` blocks are unstable [INFO] [stdout] --> tests/syntax.rs:71:66 [INFO] [stdout] | [INFO] [stdout] 71 | #[cex] let _result: Result!( () throws A,B,C ) = try{ throws_abc()? }; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 90 | define_tests!(); [INFO] [stdout] | --------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: see issue #154391 for more information [INFO] [stdout] = help: add `#![feature(try_blocks)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2026-09-13; consider upgrading it if it is out of date [INFO] [stdout] = warning: unstable syntax can change at any point in the future, causing a hard error! [INFO] [stdout] = note: for more information, see issue #154045 [INFO] [stdout] = note: this warning originates in the macro `define_tests` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `try` blocks are unstable [INFO] [stdout] --> tests/syntax.rs:71:66 [INFO] [stdout] | [INFO] [stdout] 71 | #[cex] let _result: Result!( () throws A,B,C ) = try{ throws_abc()? }; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 100 | define_tests!(); [INFO] [stdout] | --------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: see issue #154391 for more information [INFO] [stdout] = help: add `#![feature(try_blocks)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2026-09-13; consider upgrading it if it is out of date [INFO] [stdout] = warning: unstable syntax can change at any point in the future, causing a hard error! [INFO] [stdout] = note: for more information, see issue #154045 [INFO] [stdout] = note: this warning originates in the macro `define_tests` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `try` blocks are unstable [INFO] [stdout] --> tests/syntax.rs:71:66 [INFO] [stdout] | [INFO] [stdout] 71 | #[cex] let _result: Result!( () throws A,B,C ) = try{ throws_abc()? }; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 110 | define_tests!(); [INFO] [stdout] | --------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: see issue #154391 for more information [INFO] [stdout] = help: add `#![feature(try_blocks)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2026-09-13; consider upgrading it if it is out of date [INFO] [stdout] = warning: unstable syntax can change at any point in the future, causing a hard error! [INFO] [stdout] = note: for more information, see issue #154045 [INFO] [stdout] = note: this warning originates in the macro `define_tests` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.43s [INFO] running `Command { std: "docker" "inspect" "0c481e778b1a240f65e10ee6ca52072b5c257a204761c17e704c579c7aa0a55f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0c481e778b1a240f65e10ee6ca52072b5c257a204761c17e704c579c7aa0a55f", kill_on_drop: false }` [INFO] [stdout] 0c481e778b1a240f65e10ee6ca52072b5c257a204761c17e704c579c7aa0a55f