Dec 06 01:44:07.460 INFO testing dflemstr/semantic-editor against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 06 01:44:07.460 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-5/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 06 01:44:07.825 INFO [stdout] c928a5908aeb34b774a7fe742c9787d9ef912231d3a4a1649c7635db6be9a3a6
Dec 06 01:44:07.830 INFO running `"docker" "start" "-a" "c928a5908aeb34b774a7fe742c9787d9ef912231d3a4a1649c7635db6be9a3a6"`
Dec 06 01:44:08.376 INFO [stderr] usermod: no changes
Dec 06 01:44:08.718 INFO [stderr]    Compiling proc-macro2 v0.4.13
Dec 06 01:44:08.721 INFO [stderr]    Compiling wasm-bindgen-shared v0.2.19
Dec 06 01:44:08.721 INFO [stderr]    Compiling alloc-no-stdlib v1.3.0
Dec 06 01:44:08.721 INFO [stderr]    Compiling multimap v0.4.0
Dec 06 01:44:08.741 INFO [stderr]    Compiling type-info v0.2.1
Dec 06 01:44:08.747 INFO [stderr]    Compiling slog v2.3.2
Dec 06 01:44:08.747 INFO [stderr]    Compiling futures-await-await-macro v0.1.1
Dec 06 01:44:08.747 INFO [stderr]    Compiling uuid v0.6.5
Dec 06 01:44:10.131 INFO [stderr]    Compiling petgraph v0.4.12
Dec 06 01:44:10.300 INFO [stderr]    Compiling walkdir v2.2.5
Dec 06 01:44:10.724 INFO [stderr]    Compiling tempdir v0.3.7
Dec 06 01:44:10.724 INFO [stderr]    Compiling want v0.0.6
Dec 06 01:44:10.724 INFO [stderr]    Compiling mio v0.6.15
Dec 06 01:44:10.760 INFO [stderr]    Compiling env_logger v0.5.12
Dec 06 01:44:11.460 INFO [stderr]    Compiling brotli-decompressor v1.3.1
Dec 06 01:44:11.533 INFO [stderr]    Compiling prost v0.4.0
Dec 06 01:44:13.444 INFO [stderr]    Compiling tokio-io v0.1.7
Dec 06 01:44:14.772 INFO [stderr]    Compiling http v0.1.9
Dec 06 01:44:14.800 INFO [stderr]    Compiling semantic v0.1.0 (/source/semantic)
Dec 06 01:44:17.220 INFO [stderr] error[E0658]: use of unstable library feature 'proc_macro_def_site' (see issue #54724)
Dec 06 01:44:17.220 INFO [stderr]    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.13/src/unstable.rs:359:27
Dec 06 01:44:17.220 INFO [stderr]     |
Dec 06 01:44:17.220 INFO [stderr] 359 |             Span::Nightly(proc_macro::Span::def_site())
Dec 06 01:44:17.220 INFO [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 01:44:17.220 INFO [stderr]     |
Dec 06 01:44:17.220 INFO [stderr]     = help: add #![feature(proc_macro_def_site)] to the crate attributes to enable
Dec 06 01:44:17.220 INFO [stderr] 
Dec 06 01:44:17.234 INFO [stderr] error: aborting due to previous error
Dec 06 01:44:17.234 INFO [stderr] 
Dec 06 01:44:17.234 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Dec 06 01:44:17.272 INFO [stderr] error: Could not compile `proc-macro2`.
Dec 06 01:44:17.272 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 06 01:44:28.419 INFO [stderr] error: build failed
Dec 06 01:44:28.422 INFO [stderr] su: No module specific data is present
Dec 06 01:44:28.802 INFO running `"docker" "inspect" "c928a5908aeb34b774a7fe742c9787d9ef912231d3a4a1649c7635db6be9a3a6"`
Dec 06 01:44:29.034 INFO running `"docker" "rm" "-f" "c928a5908aeb34b774a7fe742c9787d9ef912231d3a4a1649c7635db6be9a3a6"`
Dec 06 01:44:29.255 INFO [stdout] c928a5908aeb34b774a7fe742c9787d9ef912231d3a4a1649c7635db6be9a3a6