[INFO] fetching crate cex 0.5.2...
[INFO] checking cex-0.5.2 against nightly-2024-02-05 for check-cfg
[INFO] extracting crate cex 0.5.2 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate cex 0.5.2 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded enumx v0.4.3
[INFO] [stderr]   Downloaded enumx_derive v0.4.2
[INFO] [stderr]   Downloaded cex_derive v0.5.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a9fb41b4ae03337388b1ddf143672177cebaf2581eb0cb74498898243f6d0285
[INFO] running `Command { std: "docker" "start" "-a" "a9fb41b4ae03337388b1ddf143672177cebaf2581eb0cb74498898243f6d0285", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9fb41b4ae03337388b1ddf143672177cebaf2581eb0cb74498898243f6d0285", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9fb41b4ae03337388b1ddf143672177cebaf2581eb0cb74498898243f6d0285", kill_on_drop: false }`
[INFO] [stdout] a9fb41b4ae03337388b1ddf143672177cebaf2581eb0cb74498898243f6d0285
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1bf7e7fcce31ffe976b5ff8efc0a5576cffa22e0554875a604d7efa5926a2c75
[INFO] running `Command { std: "docker" "start" "-a" "1bf7e7fcce31ffe976b5ff8efc0a5576cffa22e0554875a604d7efa5926a2c75", kill_on_drop: false }`
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling syn v1.0.109
[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 #31436 <https://github.com/rust-lang/rust/issues/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 2024-02-04; 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 #65860 <https://github.com/rust-lang/rust/issues/65860>
[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 #31436 <https://github.com/rust-lang/rust/issues/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 2024-02-04; 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 #65860 <https://github.com/rust-lang/rust/issues/65860>
[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 #31436 <https://github.com/rust-lang/rust/issues/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 2024-02-04; 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 #65860 <https://github.com/rust-lang/rust/issues/65860>
[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: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.77s
[INFO] running `Command { std: "docker" "inspect" "1bf7e7fcce31ffe976b5ff8efc0a5576cffa22e0554875a604d7efa5926a2c75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bf7e7fcce31ffe976b5ff8efc0a5576cffa22e0554875a604d7efa5926a2c75", kill_on_drop: false }`
[INFO] [stdout] 1bf7e7fcce31ffe976b5ff8efc0a5576cffa22e0554875a604d7efa5926a2c75
[INFO] checking cex-0.5.2 against nightly-2024-02-05+rustflags=-Dunexpected_cfgs+cargoflags=-Zcheck-cfg for check-cfg
[INFO] extracting crate cex 0.5.2 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate cex 0.5.2 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d0cbd4f278497738fecbad079865f7626c5da86852dd12cf9325be5016767f2f
[INFO] running `Command { std: "docker" "start" "-a" "d0cbd4f278497738fecbad079865f7626c5da86852dd12cf9325be5016767f2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0cbd4f278497738fecbad079865f7626c5da86852dd12cf9325be5016767f2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0cbd4f278497738fecbad079865f7626c5da86852dd12cf9325be5016767f2f", kill_on_drop: false }`
[INFO] [stdout] d0cbd4f278497738fecbad079865f7626c5da86852dd12cf9325be5016767f2f
[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=forbid -Dunexpected_cfgs" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zcheck-cfg", kill_on_drop: false }`
[INFO] [stdout] f4f55afbdd57dda7e1188f1acf533ba91c7f0f5f7df6e32f3f1626dd587f7864
[INFO] running `Command { std: "docker" "start" "-a" "f4f55afbdd57dda7e1188f1acf533ba91c7f0f5f7df6e32f3f1626dd587f7864", kill_on_drop: false }`
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling syn v1.0.109
[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 #31436 <https://github.com/rust-lang/rust/issues/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 2024-02-04; 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 #65860 <https://github.com/rust-lang/rust/issues/65860>
[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 #31436 <https://github.com/rust-lang/rust/issues/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 2024-02-04; 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 #65860 <https://github.com/rust-lang/rust/issues/65860>
[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 #31436 <https://github.com/rust-lang/rust/issues/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 2024-02-04; 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 #65860 <https://github.com/rust-lang/rust/issues/65860>
[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: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.74s
[INFO] running `Command { std: "docker" "inspect" "f4f55afbdd57dda7e1188f1acf533ba91c7f0f5f7df6e32f3f1626dd587f7864", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4f55afbdd57dda7e1188f1acf533ba91c7f0f5f7df6e32f3f1626dd587f7864", kill_on_drop: false }`
[INFO] [stdout] f4f55afbdd57dda7e1188f1acf533ba91c7f0f5f7df6e32f3f1626dd587f7864
