Oct 15 11:10:43.566 INFO testing EmmaRamirez/rust-and-webassembly-talk against try#40d4795669493f1965de7c44029c69552134fe1f for rustdoc-test-static-cling-1
Oct 15 11:10:43.567 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/rustdoc-test-static-cling-1/worker-0/try#40d4795669493f1965de7c44029c69552134fe1f:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-0/rustdoc-test-static-cling-1/try#40d4795669493f1965de7c44029c69552134fe1f:/source:ro,Z" "-v" "/mnt/big/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +40d4795669493f1965de7c44029c69552134fe1f-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Oct 15 11:10:43.963 INFO blam! e83870a9e1f69ba0e3647c3dc8b453a90585df26dddcd2dd6e673609079b9689
Oct 15 11:10:43.979 INFO running `"docker" "start" "-a" "e83870a9e1f69ba0e3647c3dc8b453a90585df26dddcd2dd6e673609079b9689"`
Oct 15 11:10:45.226 INFO kablam! usermod: no changes
Oct 15 11:10:45.387 INFO kablam!    Compiling proc-macro2 v0.4.12
Oct 15 11:10:45.387 INFO kablam!    Compiling serde_json v1.0.26
Oct 15 11:10:50.323 INFO kablam! error[E0658]: use of unstable library feature 'proc_macro_def_site' (see issue #54724)
Oct 15 11:10:50.323 INFO kablam!    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.12/src/unstable.rs:346:27
Oct 15 11:10:50.323 INFO kablam!     |
Oct 15 11:10:50.323 INFO kablam! 346 |             Span::Nightly(proc_macro::Span::def_site())
Oct 15 11:10:50.323 INFO kablam!     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 15 11:10:50.323 INFO kablam!     |
Oct 15 11:10:50.323 INFO kablam!     = help: add #![feature(proc_macro_def_site)] to the crate attributes to enable
Oct 15 11:10:50.323 INFO kablam! 
Oct 15 11:10:50.398 INFO kablam! error: aborting due to previous error
Oct 15 11:10:50.398 INFO kablam! 
Oct 15 11:10:50.411 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Oct 15 11:10:50.439 INFO kablam! error: Could not compile `proc-macro2`.
Oct 15 11:10:50.439 INFO kablam! warning: build failed, waiting for other jobs to finish...
Oct 15 11:10:52.318 INFO kablam! error: build failed
Oct 15 11:10:52.327 INFO kablam! su: No module specific data is present
Oct 15 11:10:53.425 INFO running `"docker" "rm" "-f" "e83870a9e1f69ba0e3647c3dc8b453a90585df26dddcd2dd6e673609079b9689"`
Oct 15 11:10:53.673 INFO blam! e83870a9e1f69ba0e3647c3dc8b453a90585df26dddcd2dd6e673609079b9689