[INFO] fetching crate proc-macro2 1.0.70...
[INFO] checking proc-macro2-1.0.70 against nightly-2024-02-05 for check-cfg
[INFO] extracting crate proc-macro2 1.0.70 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate proc-macro2 1.0.70 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] removed /workspace/builds/worker-4-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate proc-macro2 1.0.70
[INFO] finished tweaking crates.io crate proc-macro2 1.0.70
[INFO] tweaked toml for crates.io crate proc-macro2 1.0.70 written to /workspace/builds/worker-4-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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] e674f232a34633bdc996e9e99f04c995ebdab758e699ceff7f057b5cccf0c675
[INFO] running `Command { std: "docker" "start" "-a" "e674f232a34633bdc996e9e99f04c995ebdab758e699ceff7f057b5cccf0c675", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e674f232a34633bdc996e9e99f04c995ebdab758e699ceff7f057b5cccf0c675", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e674f232a34633bdc996e9e99f04c995ebdab758e699ceff7f057b5cccf0c675", kill_on_drop: false }`
[INFO] [stdout] e674f232a34633bdc996e9e99f04c995ebdab758e699ceff7f057b5cccf0c675
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] e029c02ce94544cb32105b7c986853e4ce274fa1c0129251c988a5bad456bf81
[INFO] running `Command { std: "docker" "start" "-a" "e029c02ce94544cb32105b7c986853e4ce274fa1c0129251c988a5bad456bf81", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]    Compiling proc-macro2 v1.0.70 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking quote v1.0.35
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/marker.rs:15:39
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub(crate) struct ProcMacroAutoTraits(Rc<()>);
[INFO] [stdout]    |                   ------------------- ^^^^^^
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub(crate) struct ProcMacroAutoTraits(());
[INFO] [stdout]    |                                       ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/marker.rs:15:39
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub(crate) struct ProcMacroAutoTraits(Rc<()>);
[INFO] [stdout]    |                   ------------------- ^^^^^^
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub(crate) struct ProcMacroAutoTraits(());
[INFO] [stdout]    |                                       ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "e029c02ce94544cb32105b7c986853e4ce274fa1c0129251c988a5bad456bf81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e029c02ce94544cb32105b7c986853e4ce274fa1c0129251c988a5bad456bf81", kill_on_drop: false }`
[INFO] [stdout] e029c02ce94544cb32105b7c986853e4ce274fa1c0129251c988a5bad456bf81
[INFO] checking proc-macro2-1.0.70 against nightly-2024-02-05+rustflags=-Dunexpected_cfgs+cargoflags=-Zcheck-cfg for check-cfg
[INFO] extracting crate proc-macro2 1.0.70 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate proc-macro2 1.0.70 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] removed /workspace/builds/worker-4-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate proc-macro2 1.0.70
[INFO] finished tweaking crates.io crate proc-macro2 1.0.70
[INFO] tweaked toml for crates.io crate proc-macro2 1.0.70 written to /workspace/builds/worker-4-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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 9c45707d750f67f6628f3d4c6b94b23c6e164d2e3340e6e8acb88fd4bc83b954
[INFO] running `Command { std: "docker" "start" "-a" "9c45707d750f67f6628f3d4c6b94b23c6e164d2e3340e6e8acb88fd4bc83b954", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c45707d750f67f6628f3d4c6b94b23c6e164d2e3340e6e8acb88fd4bc83b954", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c45707d750f67f6628f3d4c6b94b23c6e164d2e3340e6e8acb88fd4bc83b954", kill_on_drop: false }`
[INFO] [stdout] 9c45707d750f67f6628f3d4c6b94b23c6e164d2e3340e6e8acb88fd4bc83b954
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 699eac4543203fec72b78a52003c29165d96075a5bc68e422a33985119c38ec6
[INFO] running `Command { std: "docker" "start" "-a" "699eac4543203fec72b78a52003c29165d96075a5bc68e422a33985119c38ec6", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling proc-macro2 v1.0.70 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stdout] error: unexpected `cfg` condition name: `procmacro2_semver_exempt`
[INFO] [stdout]   --> build.rs:51:30
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let semver_exempt = cfg!(procmacro2_semver_exempt) || docs_rs;
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `debug_assertions`, `doc`, `doctest`, `feature`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `unix`, `windows`
[INFO] [stdout]    = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(procmacro2_semver_exempt)");` to the top of a `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]    = note: requested on the command line with `-D unexpected-cfgs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (build script) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "699eac4543203fec72b78a52003c29165d96075a5bc68e422a33985119c38ec6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "699eac4543203fec72b78a52003c29165d96075a5bc68e422a33985119c38ec6", kill_on_drop: false }`
[INFO] [stdout] 699eac4543203fec72b78a52003c29165d96075a5bc68e422a33985119c38ec6
