Nov 27 23:12:26.617 INFO documenting dflemstr/semantic-editor against try#f5a0bd723553ea4b7556bd7087b9f0919cafb483 for pr-55318
Nov 27 23:12:26.619 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55318/worker-1/try#f5a0bd723553ea4b7556bd7087b9f0919cafb483:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-55318/try#f5a0bd723553ea4b7556bd7087b9f0919cafb483:/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 +f5a0bd723553ea4b7556bd7087b9f0919cafb483-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"`
Nov 27 23:12:26.899 INFO [stdout] a95f20ef7833b2d54c2dcd6cac0b18564267a5a0b061edd19aeebf9fcbd34406
Nov 27 23:12:26.927 INFO running `"docker" "start" "-a" "a95f20ef7833b2d54c2dcd6cac0b18564267a5a0b061edd19aeebf9fcbd34406"`
Nov 27 23:12:27.541 INFO [stderr] usermod: no changes
Nov 27 23:12:27.991 INFO [stderr]    Compiling wasm-bindgen-shared v0.2.19
Nov 27 23:12:27.994 INFO [stderr]    Compiling byteorder v1.2.4
Nov 27 23:12:28.007 INFO [stderr]    Compiling termcolor v1.0.1
Nov 27 23:12:28.008 INFO [stderr]    Compiling alloc-no-stdlib v1.3.0
Nov 27 23:12:28.008 INFO [stderr]     Checking slog v2.3.2
Nov 27 23:12:28.008 INFO [stderr]    Compiling bytesize v1.0.0
Nov 27 23:12:28.008 INFO [stderr]    Compiling type-info v0.2.1
Nov 27 23:12:28.009 INFO [stderr]     Checking futures-await-await-macro v0.1.1
Nov 27 23:12:29.431 INFO [stderr]    Compiling walkdir v2.2.5
Nov 27 23:12:29.880 INFO [stderr]    Compiling brotli-decompressor v1.3.1
Nov 27 23:12:30.960 INFO [stderr]    Compiling proc-macro2 v0.4.13
Nov 27 23:12:31.676 INFO [stderr]    Compiling tempdir v0.3.7
Nov 27 23:12:32.474 INFO [stderr]    Compiling serde v1.0.71
Nov 27 23:12:32.486 INFO [stderr]    Compiling num-traits v0.2.5
Nov 27 23:12:35.095 INFO [stderr]     Checking slog-scope v4.0.1
Nov 27 23:12:35.100 INFO [stderr]     Checking semantic v0.1.0 (/source/semantic)
Nov 27 23:12:35.197 INFO [stderr]    Compiling backtrace-sys v0.1.23
Nov 27 23:12:37.559 INFO [stderr] error[E0658]: use of unstable library feature 'proc_macro_def_site' (see issue #54724)
Nov 27 23:12:37.559 INFO [stderr]    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.13/src/unstable.rs:359:27
Nov 27 23:12:37.559 INFO [stderr]     |
Nov 27 23:12:37.559 INFO [stderr] 359 |             Span::Nightly(proc_macro::Span::def_site())
Nov 27 23:12:37.559 INFO [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 23:12:37.559 INFO [stderr]     |
Nov 27 23:12:37.559 INFO [stderr]     = help: add #![feature(proc_macro_def_site)] to the crate attributes to enable
Nov 27 23:12:37.559 INFO [stderr] 
Nov 27 23:12:37.671 INFO [stderr] error: aborting due to previous error
Nov 27 23:12:37.683 INFO [stderr] 
Nov 27 23:12:37.683 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Nov 27 23:12:37.731 INFO [stderr] error: Could not compile `proc-macro2`.
Nov 27 23:12:37.731 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Nov 27 23:12:49.159 INFO [stderr] error: build failed
Nov 27 23:12:49.161 INFO [stderr] su: No module specific data is present
Nov 27 23:12:49.716 INFO running `"docker" "inspect" "a95f20ef7833b2d54c2dcd6cac0b18564267a5a0b061edd19aeebf9fcbd34406"`
Nov 27 23:12:49.921 INFO running `"docker" "rm" "-f" "a95f20ef7833b2d54c2dcd6cac0b18564267a5a0b061edd19aeebf9fcbd34406"`
Nov 27 23:12:50.103 INFO [stdout] a95f20ef7833b2d54c2dcd6cac0b18564267a5a0b061edd19aeebf9fcbd34406