Nov 17 04:48:01.774 INFO testing dflemstr/semantic-editor against master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c for pr-55982
Nov 17 04:48:01.774 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-2/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-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 04:48:01.967 INFO [stdout] baf150d4948f9d20988eba0f0341eeae0d7e8c799860412478c37ff6160c106c
Nov 17 04:48:01.973 INFO running `"docker" "start" "-a" "baf150d4948f9d20988eba0f0341eeae0d7e8c799860412478c37ff6160c106c"`
Nov 17 04:48:03.003 INFO [stderr] usermod: no changes
Nov 17 04:48:03.535 INFO [stderr]    Compiling wasm-bindgen-shared v0.2.19
Nov 17 04:48:03.539 INFO [stderr]    Compiling bytesize v1.0.0
Nov 17 04:48:03.539 INFO [stderr]    Compiling slog v2.3.2
Nov 17 04:48:03.539 INFO [stderr]    Compiling type-info v0.2.1
Nov 17 04:48:03.556 INFO [stderr]    Compiling futures-await-await-macro v0.1.1
Nov 17 04:48:03.565 INFO [stderr]    Compiling proc-macro2 v0.4.13
Nov 17 04:48:03.565 INFO [stderr]    Compiling tempdir v0.3.7
Nov 17 04:48:03.566 INFO [stderr]    Compiling want v0.0.6
Nov 17 04:48:05.239 INFO [stderr]    Compiling mio v0.6.15
Nov 17 04:48:05.739 INFO [stderr]    Compiling env_logger v0.5.12
Nov 17 04:48:07.175 INFO [stderr]    Compiling pulldown-cmark v0.1.2
Nov 17 04:48:07.224 INFO [stderr]    Compiling backtrace-sys v0.1.23
Nov 17 04:48:07.224 INFO [stderr]    Compiling prost v0.4.0
Nov 17 04:48:07.301 INFO [stderr]    Compiling tokio-io v0.1.7
Nov 17 04:48:09.915 INFO [stderr]    Compiling http v0.1.9
Nov 17 04:48:10.067 INFO [stderr]    Compiling semantic v0.1.0 (/source/semantic)
Nov 17 04:48:14.819 INFO [stderr] error[E0658]: use of unstable library feature 'proc_macro_def_site' (see issue #54724)
Nov 17 04:48:14.819 INFO [stderr]    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.13/src/unstable.rs:359:27
Nov 17 04:48:14.820 INFO [stderr]     |
Nov 17 04:48:14.820 INFO [stderr] 359 |             Span::Nightly(proc_macro::Span::def_site())
Nov 17 04:48:14.820 INFO [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 04:48:14.821 INFO [stderr]     |
Nov 17 04:48:14.821 INFO [stderr]     = help: add #![feature(proc_macro_def_site)] to the crate attributes to enable
Nov 17 04:48:14.821 INFO [stderr] 
Nov 17 04:48:14.891 INFO [stderr] error: aborting due to previous error
Nov 17 04:48:14.891 INFO [stderr] 
Nov 17 04:48:14.891 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Nov 17 04:48:14.971 INFO [stderr] error: Could not compile `proc-macro2`.
Nov 17 04:48:14.972 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Nov 17 04:48:23.203 INFO [stderr] error: build failed
Nov 17 04:48:23.224 INFO [stderr] su: No module specific data is present
Nov 17 04:48:23.936 INFO running `"docker" "inspect" "baf150d4948f9d20988eba0f0341eeae0d7e8c799860412478c37ff6160c106c"`
Nov 17 04:48:24.197 INFO running `"docker" "rm" "-f" "baf150d4948f9d20988eba0f0341eeae0d7e8c799860412478c37ff6160c106c"`
Nov 17 04:48:24.539 INFO [stdout] baf150d4948f9d20988eba0f0341eeae0d7e8c799860412478c37ff6160c106c