Oct 14 11:34:19.850 INFO testing media-io/timed-text-wasm against try#40d4795669493f1965de7c44029c69552134fe1f for rustdoc-test-static-cling-1
Oct 14 11:34:19.850 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/rustdoc-test-static-cling-1/worker-6/try#40d4795669493f1965de7c44029c69552134fe1f:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-6/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 14 11:34:20.398 INFO blam! 98bb8311d5a36f7391b3e65328572f3edc31f08e66a88fd90d12d49af8724a70
Oct 14 11:34:20.400 INFO running `"docker" "start" "-a" "98bb8311d5a36f7391b3e65328572f3edc31f08e66a88fd90d12d49af8724a70"`
Oct 14 11:34:22.406 INFO kablam! usermod: no changes
Oct 14 11:34:22.531 INFO kablam!    Compiling proc-macro2 v0.4.12
Oct 14 11:34:22.531 INFO kablam!    Compiling serde v1.0.71
Oct 14 11:34:22.531 INFO kablam!    Compiling version_check v0.1.4
Oct 14 11:34:22.531 INFO kablam!    Compiling ryu v0.2.3
Oct 14 11:34:22.531 INFO kablam!    Compiling wasm-bindgen-shared v0.2.16
Oct 14 11:34:22.531 INFO kablam!    Compiling itoa v0.4.2
Oct 14 11:34:22.531 INFO kablam!    Compiling log v0.4.3
Oct 14 11:34:26.874 INFO kablam!    Compiling lazy_static v1.1.0
Oct 14 11:34:30.457 INFO kablam! error[E0658]: use of unstable library feature 'proc_macro_def_site' (see issue #54724)
Oct 14 11:34:30.458 INFO kablam!    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.12/src/unstable.rs:346:27
Oct 14 11:34:30.458 INFO kablam!     |
Oct 14 11:34:30.458 INFO kablam! 346 |             Span::Nightly(proc_macro::Span::def_site())
Oct 14 11:34:30.458 INFO kablam!     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 14 11:34:30.458 INFO kablam!     |
Oct 14 11:34:30.459 INFO kablam!     = help: add #![feature(proc_macro_def_site)] to the crate attributes to enable
Oct 14 11:34:30.459 INFO kablam! 
Oct 14 11:34:30.500 INFO kablam! error: aborting due to previous error
Oct 14 11:34:30.500 INFO kablam! 
Oct 14 11:34:30.501 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Oct 14 11:34:30.526 INFO kablam! error: Could not compile `proc-macro2`.
Oct 14 11:34:30.531 INFO kablam! warning: build failed, waiting for other jobs to finish...
Oct 14 11:34:42.183 INFO kablam! error: build failed
Oct 14 11:34:42.186 INFO kablam! su: No module specific data is present
Oct 14 11:34:43.611 INFO running `"docker" "rm" "-f" "98bb8311d5a36f7391b3e65328572f3edc31f08e66a88fd90d12d49af8724a70"`
Oct 14 11:34:44.019 INFO blam! 98bb8311d5a36f7391b3e65328572f3edc31f08e66a88fd90d12d49af8724a70