Nov 17 15:37:01.502 INFO testing EmmaRamirez/rust-and-webassembly-talk against try#2e026d6e5d7621634147ad4c8074f1d964dbb1be for pr-55982
Nov 17 15:37:01.504 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-3/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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"`
Nov 17 15:37:02.080 INFO [stdout] b624e5c98ccb229e89aaecb1c0ad18a1ca6c14162156ef9e0c9580caa83891fe
Nov 17 15:37:02.083 INFO running `"docker" "start" "-a" "b624e5c98ccb229e89aaecb1c0ad18a1ca6c14162156ef9e0c9580caa83891fe"`
Nov 17 15:37:03.655 INFO [stderr] usermod: no changes
Nov 17 15:37:03.791 INFO [stderr]    Compiling proc-macro2 v0.4.12
Nov 17 15:37:03.791 INFO [stderr]    Compiling wasm-bindgen-shared v0.2.16
Nov 17 15:37:08.455 INFO [stderr] error[E0658]: use of unstable library feature 'proc_macro_def_site' (see issue #54724)
Nov 17 15:37:08.456 INFO [stderr]    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.12/src/unstable.rs:346:27
Nov 17 15:37:08.456 INFO [stderr]     |
Nov 17 15:37:08.456 INFO [stderr] 346 |             Span::Nightly(proc_macro::Span::def_site())
Nov 17 15:37:08.457 INFO [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:37:08.457 INFO [stderr]     |
Nov 17 15:37:08.457 INFO [stderr]     = help: add #![feature(proc_macro_def_site)] to the crate attributes to enable
Nov 17 15:37:08.457 INFO [stderr] 
Nov 17 15:37:08.493 INFO [stderr] error: aborting due to previous error
Nov 17 15:37:08.493 INFO [stderr] 
Nov 17 15:37:08.493 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Nov 17 15:37:08.507 INFO [stderr] error: Could not compile `proc-macro2`.
Nov 17 15:37:08.508 INFO [stderr] 
Nov 17 15:37:08.508 INFO [stderr] To learn more, run the command again with --verbose.
Nov 17 15:37:08.516 INFO [stderr] su: No module specific data is present
Nov 17 15:37:09.679 INFO running `"docker" "inspect" "b624e5c98ccb229e89aaecb1c0ad18a1ca6c14162156ef9e0c9580caa83891fe"`
Nov 17 15:37:10.061 INFO running `"docker" "rm" "-f" "b624e5c98ccb229e89aaecb1c0ad18a1ca6c14162156ef9e0c9580caa83891fe"`
Nov 17 15:37:10.391 INFO [stdout] b624e5c98ccb229e89aaecb1c0ad18a1ca6c14162156ef9e0c9580caa83891fe