Nov 27 20:07:39.417 INFO documenting jeremyBanks/tprime against master#6bfb46e4ac9a2704f06de1a2ff7a4612cd70c8cb for pr-55318
Nov 27 20:07:39.418 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55318/worker-3/master#6bfb46e4ac9a2704f06de1a2ff7a4612cd70c8cb:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-55318/master#6bfb46e4ac9a2704f06de1a2ff7a4612cd70c8cb:/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 +6bfb46e4ac9a2704f06de1a2ff7a4612cd70c8cb-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 20:07:39.803 INFO [stdout] bb3ddf67dddd09ed949d7b89b57b502601f56be8e674a7c4b1d728e1d730e908
Nov 27 20:07:39.809 INFO running `"docker" "start" "-a" "bb3ddf67dddd09ed949d7b89b57b502601f56be8e674a7c4b1d728e1d730e908"`
Nov 27 20:07:41.185 INFO [stderr] usermod: no changes
Nov 27 20:07:41.295 INFO [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
Nov 27 20:07:41.419 INFO [stderr]    Compiling wasm-bindgen-shared v0.2.15
Nov 27 20:07:41.420 INFO [stderr]     Checking rand_core v0.2.1
Nov 27 20:07:41.421 INFO [stderr]     Checking web-sys v0.0.1
Nov 27 20:07:41.421 INFO [stderr]    Compiling proc-macro2 v0.4.9
Nov 27 20:07:41.421 INFO [stderr]    Compiling serde v1.0.71
Nov 27 20:07:41.421 INFO [stderr]    Compiling serdebug v1.0.5
Nov 27 20:07:43.897 INFO [stderr]     Checking rand v0.5.5
Nov 27 20:07:44.131 INFO [stderr] error[E0658]: use of unstable library feature 'proc_macro_def_site' (see issue #54724)
Nov 27 20:07:44.131 INFO [stderr]    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.9/src/unstable.rs:347:27
Nov 27 20:07:44.131 INFO [stderr]     |
Nov 27 20:07:44.131 INFO [stderr] 347 |             Span::Nightly(proc_macro::Span::def_site())
Nov 27 20:07:44.131 INFO [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 20:07:44.131 INFO [stderr]     |
Nov 27 20:07:44.131 INFO [stderr]     = help: add #![feature(proc_macro_def_site)] to the crate attributes to enable
Nov 27 20:07:44.131 INFO [stderr] 
Nov 27 20:07:44.155 INFO [stderr] error: aborting due to previous error
Nov 27 20:07:44.155 INFO [stderr] 
Nov 27 20:07:44.155 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Nov 27 20:07:44.169 INFO [stderr] error: Could not compile `proc-macro2`.
Nov 27 20:07:44.169 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Nov 27 20:07:55.352 INFO [stderr] error: build failed
Nov 27 20:07:55.352 INFO [stderr] su: No module specific data is present
Nov 27 20:07:56.309 INFO running `"docker" "inspect" "bb3ddf67dddd09ed949d7b89b57b502601f56be8e674a7c4b1d728e1d730e908"`
Nov 27 20:07:56.587 INFO running `"docker" "rm" "-f" "bb3ddf67dddd09ed949d7b89b57b502601f56be8e674a7c4b1d728e1d730e908"`
Nov 27 20:07:56.855 INFO [stdout] bb3ddf67dddd09ed949d7b89b57b502601f56be8e674a7c4b1d728e1d730e908