Dec 11 16:27:43.108 INFO checking jeremyBanks/tprime against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 16:27:43.108 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-1/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-alt check --frozen --all --all-targets" "-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 11 16:27:43.444 INFO [stdout] 9d46a13f5ae00c9792394e917aab0ed25f2913df6d19fd8e76ae3d0c1487cc68
Dec 11 16:27:43.446 INFO running `"docker" "start" "-a" "9d46a13f5ae00c9792394e917aab0ed25f2913df6d19fd8e76ae3d0c1487cc68"`
Dec 11 16:27:44.859 INFO [stderr] usermod: no changes
Dec 11 16:27:44.964 INFO [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
Dec 11 16:27:45.151 INFO [stderr]    Compiling wasm-bindgen-shared v0.2.15
Dec 11 16:27:45.164 INFO [stderr]     Checking web-sys v0.0.1
Dec 11 16:27:45.164 INFO [stderr]    Compiling proc-macro2 v0.4.9
Dec 11 16:27:45.192 INFO [stderr]    Compiling serde v1.0.71
Dec 11 16:27:45.196 INFO [stderr]    Compiling serdebug v1.0.5
Dec 11 16:27:48.384 INFO [stderr] error[E0658]: use of unstable library feature 'proc_macro_def_site' (see issue #54724)
Dec 11 16:27:48.384 INFO [stderr]    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.9/src/unstable.rs:347:27
Dec 11 16:27:48.384 INFO [stderr]     |
Dec 11 16:27:48.384 INFO [stderr] 347 |             Span::Nightly(proc_macro::Span::def_site())
Dec 11 16:27:48.385 INFO [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:27:48.385 INFO [stderr]     |
Dec 11 16:27:48.385 INFO [stderr]     = help: add #![feature(proc_macro_def_site)] to the crate attributes to enable
Dec 11 16:27:48.385 INFO [stderr] 
Dec 11 16:27:48.437 INFO [stderr] error: aborting due to previous error
Dec 11 16:27:48.437 INFO [stderr] 
Dec 11 16:27:48.437 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Dec 11 16:27:48.456 INFO [stderr] error: Could not compile `proc-macro2`.
Dec 11 16:27:48.457 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 11 16:27:58.174 INFO [stderr] error: build failed
Dec 11 16:27:58.176 INFO [stderr] su: No module specific data is present
Dec 11 16:27:59.077 INFO running `"docker" "inspect" "9d46a13f5ae00c9792394e917aab0ed25f2913df6d19fd8e76ae3d0c1487cc68"`
Dec 11 16:27:59.332 INFO running `"docker" "rm" "-f" "9d46a13f5ae00c9792394e917aab0ed25f2913df6d19fd8e76ae3d0c1487cc68"`
Dec 11 16:27:59.648 INFO [stdout] 9d46a13f5ae00c9792394e917aab0ed25f2913df6d19fd8e76ae3d0c1487cc68