Dec 01 19:44:49.589 INFO documenting amaurymartiny/lowasm against master#147e60c5f89cfa2d3ffc247413956a37582c98e7 for pr-55318-1
Dec 01 19:44:49.589 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55318-1/worker-3/master#147e60c5f89cfa2d3ffc247413956a37582c98e7:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-55318-1/master#147e60c5f89cfa2d3ffc247413956a37582c98e7:/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 +147e60c5f89cfa2d3ffc247413956a37582c98e7-alt doc --frozen --no-deps --document-private-items" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 01 19:44:49.895 INFO [stdout] 97b8c2e3f15d88294348029a9b8c8bbef1c4f90448a69f5ba136ca17fbfa7377
Dec 01 19:44:49.898 INFO running `"docker" "start" "-a" "97b8c2e3f15d88294348029a9b8c8bbef1c4f90448a69f5ba136ca17fbfa7377"`
Dec 01 19:44:50.603 INFO [stderr] usermod: no changes
Dec 01 19:44:50.738 INFO [stderr]    Compiling proc-macro2 v0.4.13
Dec 01 19:44:52.712 INFO [stderr] error[E0658]: use of unstable library feature 'proc_macro_def_site' (see issue #54724)
Dec 01 19:44:52.712 INFO [stderr]    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.13/src/unstable.rs:359:27
Dec 01 19:44:52.712 INFO [stderr]     |
Dec 01 19:44:52.712 INFO [stderr] 359 |             Span::Nightly(proc_macro::Span::def_site())
Dec 01 19:44:52.712 INFO [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 19:44:52.712 INFO [stderr]     |
Dec 01 19:44:52.712 INFO [stderr]     = help: add #![feature(proc_macro_def_site)] to the crate attributes to enable
Dec 01 19:44:52.712 INFO [stderr] 
Dec 01 19:44:52.732 INFO [stderr] error: aborting due to previous error
Dec 01 19:44:52.732 INFO [stderr] 
Dec 01 19:44:52.732 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Dec 01 19:44:52.744 INFO [stderr] error: Could not compile `proc-macro2`.
Dec 01 19:44:52.744 INFO [stderr] 
Dec 01 19:44:52.744 INFO [stderr] To learn more, run the command again with --verbose.
Dec 01 19:44:52.745 INFO [stderr] su: No module specific data is present
Dec 01 19:44:53.082 INFO running `"docker" "inspect" "97b8c2e3f15d88294348029a9b8c8bbef1c4f90448a69f5ba136ca17fbfa7377"`
Dec 01 19:44:53.316 INFO running `"docker" "rm" "-f" "97b8c2e3f15d88294348029a9b8c8bbef1c4f90448a69f5ba136ca17fbfa7377"`
Dec 01 19:44:53.503 INFO [stdout] 97b8c2e3f15d88294348029a9b8c8bbef1c4f90448a69f5ba136ca17fbfa7377