Dec 13 21:29:39.975 INFO testing dflemstr/semantic-editor against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 13 21:29:39.976 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-3/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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"`
Dec 13 21:29:40.570 INFO [stdout] f0ed76b341ebe0fc134774c76512fce643e184329b913ec5a1ddb8550ccfa5ad
Dec 13 21:29:40.574 INFO running `"docker" "start" "-a" "f0ed76b341ebe0fc134774c76512fce643e184329b913ec5a1ddb8550ccfa5ad"`
Dec 13 21:29:41.667 INFO [stderr] usermod: no changes
Dec 13 21:29:41.975 INFO [stderr]    Compiling wasm-bindgen-shared v0.2.19
Dec 13 21:29:41.975 INFO [stderr]    Compiling alloc-no-stdlib v1.3.0
Dec 13 21:29:41.975 INFO [stderr]    Compiling bytesize v1.0.0
Dec 13 21:29:41.975 INFO [stderr]    Compiling pulldown-cmark v0.1.2
Dec 13 21:29:41.975 INFO [stderr]    Compiling slog v2.3.2
Dec 13 21:29:41.975 INFO [stderr]    Compiling type-info v0.2.1
Dec 13 21:29:42.002 INFO [stderr]    Compiling futures-await-await-macro v0.1.1
Dec 13 21:29:42.002 INFO [stderr]    Compiling term v0.5.1
Dec 13 21:29:43.954 INFO [stderr]    Compiling walkdir v2.2.5
Dec 13 21:29:43.954 INFO [stderr]    Compiling proc-macro2 v0.4.13
Dec 13 21:29:44.102 INFO [stderr]    Compiling tempdir v0.3.7
Dec 13 21:29:45.047 INFO [stderr]    Compiling want v0.0.6
Dec 13 21:29:45.139 INFO [stderr]    Compiling mio v0.6.15
Dec 13 21:29:45.195 INFO [stderr]    Compiling brotli-decompressor v1.3.1
Dec 13 21:29:47.907 INFO [stderr] error[E0658]: use of unstable library feature 'proc_macro_def_site' (see issue #54724)
Dec 13 21:29:47.907 INFO [stderr]    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.13/src/unstable.rs:359:27
Dec 13 21:29:47.907 INFO [stderr]     |
Dec 13 21:29:47.907 INFO [stderr] 359 |             Span::Nightly(proc_macro::Span::def_site())
Dec 13 21:29:47.907 INFO [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 21:29:47.907 INFO [stderr]     |
Dec 13 21:29:47.907 INFO [stderr]     = help: add #![feature(proc_macro_def_site)] to the crate attributes to enable
Dec 13 21:29:47.907 INFO [stderr] 
Dec 13 21:29:47.939 INFO [stderr] error: aborting due to previous error
Dec 13 21:29:47.939 INFO [stderr] 
Dec 13 21:29:47.939 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Dec 13 21:29:47.968 INFO [stderr] error: Could not compile `proc-macro2`.
Dec 13 21:29:47.968 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 13 21:29:52.987 INFO [stderr] error: build failed
Dec 13 21:29:52.991 INFO [stderr] su: No module specific data is present
Dec 13 21:29:53.556 INFO running `"docker" "inspect" "f0ed76b341ebe0fc134774c76512fce643e184329b913ec5a1ddb8550ccfa5ad"`
Dec 13 21:29:53.841 INFO running `"docker" "rm" "-f" "f0ed76b341ebe0fc134774c76512fce643e184329b913ec5a1ddb8550ccfa5ad"`
Dec 13 21:29:54.195 INFO [stdout] f0ed76b341ebe0fc134774c76512fce643e184329b913ec5a1ddb8550ccfa5ad